Re-write mono module editor code in C#

Make the build system automatically build the C# Api assemblies to be shipped with the editor.
Make the editor, editor player and debug export templates use Api assemblies built with debug symbols.
Always run MSBuild to build the editor tools and Api assemblies when building Godot.
Several bugs fixed related to assembly hot reloading and restoring state.
Fix StringExtensions internal calls not being registered correctly, resulting in MissingMethodException.

64 files changed, 4704 insertions, 3675 deletions

diff --git a/modules/mono/editor/GodotSharpTools/.gitignore b/modules/mono/editor/GodotSharpTools/.gitignore
deleted file mode 100644
index 296ad48834..0000000000
--- a/modules/mono/editor/GodotSharpTools/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# nuget packages
-packages
\ No newline at end of file
diff --git a/modules/mono/editor/GodotSharpTools/Build/BuildSystem.cs b/modules/mono/editor/GodotSharpTools/Build/BuildSystem.cs
deleted file mode 100644
index e5044feb75..0000000000
--- a/modules/mono/editor/GodotSharpTools/Build/BuildSystem.cs
+++ /dev/null
@@ -1,425 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.Specialized;
-using System.Diagnostics;
-using System.IO;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-using System.Security;
-using Microsoft.Build.Framework;
-
-namespace GodotSharpTools.Build
-{
-    public class BuildInstance : IDisposable
-    {
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        private extern static void godot_icall_BuildInstance_ExitCallback(string solution, string config, int exitCode);
-
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        private extern static string godot_icall_BuildInstance_get_MSBuildPath();
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        private extern static string godot_icall_BuildInstance_get_MonoWindowsBinDir();
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        private extern static bool godot_icall_BuildInstance_get_UsingMonoMSBuildOnWindows();
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        private extern static bool godot_icall_BuildInstance_get_PrintBuildOutput();
-
-        private static string GetMSBuildPath()
-        {
-            string msbuildPath = godot_icall_BuildInstance_get_MSBuildPath();
-
-            if (msbuildPath == null)
-                throw new FileNotFoundException("Cannot find the MSBuild executable.");
-
-            return msbuildPath;
-        }
-
-        private static string MonoWindowsBinDir
-        {
-            get
-            {
-                string monoWinBinDir = godot_icall_BuildInstance_get_MonoWindowsBinDir();
-
-                if (monoWinBinDir == null)
-                    throw new FileNotFoundException("Cannot find the Windows Mono binaries directory.");
-
-                return monoWinBinDir;
-            }
-        }
-
-        private static bool UsingMonoMSBuildOnWindows
-        {
-            get
-            {
-                return godot_icall_BuildInstance_get_UsingMonoMSBuildOnWindows();
-            }
-        }
-
-        private static bool PrintBuildOutput
-        {
-            get
-            {
-                return godot_icall_BuildInstance_get_PrintBuildOutput();
-            }
-        }
-
-        private string solution;
-        private string config;
-
-        private Process process;
-
-        private int exitCode;
-        public int ExitCode { get { return exitCode; } }
-
-        public bool IsRunning { get { return process != null && !process.HasExited; } }
-
-        public BuildInstance(string solution, string config)
-        {
-            this.solution = solution;
-            this.config = config;
-        }
-
-        public bool Build(string loggerAssemblyPath, string loggerOutputDir, string[] customProperties = null)
-        {
-            List<string> customPropertiesList = new List<string>();
-
-            if (customProperties != null)
-                customPropertiesList.AddRange(customProperties);
-
-            string compilerArgs = BuildArguments(loggerAssemblyPath, loggerOutputDir, customPropertiesList);
-
-            ProcessStartInfo startInfo = new ProcessStartInfo(GetMSBuildPath(), compilerArgs);
-
-            bool redirectOutput = !IsDebugMSBuildRequested() && !PrintBuildOutput;
-
-            if (!redirectOutput) // TODO: or if stdout verbose
-                Console.WriteLine($"Running: \"{startInfo.FileName}\" {startInfo.Arguments}");
-
-            startInfo.RedirectStandardOutput = redirectOutput;
-            startInfo.RedirectStandardError = redirectOutput;
-            startInfo.UseShellExecute = false;
-
-            if (UsingMonoMSBuildOnWindows)
-            {
-                // These environment variables are required for Mono's MSBuild to find the compilers.
-                // We use the batch files in Mono's bin directory to make sure the compilers are executed with mono.
-                string monoWinBinDir = MonoWindowsBinDir;
-                startInfo.EnvironmentVariables.Add("CscToolExe", Path.Combine(monoWinBinDir, "csc.bat"));
-                startInfo.EnvironmentVariables.Add("VbcToolExe", Path.Combine(monoWinBinDir, "vbc.bat"));
-                startInfo.EnvironmentVariables.Add("FscToolExe", Path.Combine(monoWinBinDir, "fsharpc.bat"));
-            }
-
-            // Needed when running from Developer Command Prompt for VS
-            RemovePlatformVariable(startInfo.EnvironmentVariables);
-
-            using (Process process = new Process())
-            {
-                process.StartInfo = startInfo;
-
-                process.Start();
-
-                if (redirectOutput)
-                {
-                    process.BeginOutputReadLine();
-                    process.BeginErrorReadLine();
-                }
-
-                process.WaitForExit();
-
-                exitCode = process.ExitCode;
-            }
-
-            return true;
-        }
-
-        public bool BuildAsync(string loggerAssemblyPath, string loggerOutputDir, string[] customProperties = null)
-        {
-            if (process != null)
-                throw new InvalidOperationException("Already in use");
-
-            List<string> customPropertiesList = new List<string>();
-
-            if (customProperties != null)
-                customPropertiesList.AddRange(customProperties);
-
-            string compilerArgs = BuildArguments(loggerAssemblyPath, loggerOutputDir, customPropertiesList);
-
-            ProcessStartInfo startInfo = new ProcessStartInfo(GetMSBuildPath(), compilerArgs);
-
-            bool redirectOutput = !IsDebugMSBuildRequested() && !PrintBuildOutput;
-
-            if (!redirectOutput) // TODO: or if stdout verbose
-                Console.WriteLine($"Running: \"{startInfo.FileName}\" {startInfo.Arguments}");
-
-            startInfo.RedirectStandardOutput = redirectOutput;
-            startInfo.RedirectStandardError = redirectOutput;
-            startInfo.UseShellExecute = false;
-
-            if (UsingMonoMSBuildOnWindows)
-            {
-                // These environment variables are required for Mono's MSBuild to find the compilers.
-                // We use the batch files in Mono's bin directory to make sure the compilers are executed with mono.
-                string monoWinBinDir = MonoWindowsBinDir;
-                startInfo.EnvironmentVariables.Add("CscToolExe", Path.Combine(monoWinBinDir, "csc.bat"));
-                startInfo.EnvironmentVariables.Add("VbcToolExe", Path.Combine(monoWinBinDir, "vbc.bat"));
-                startInfo.EnvironmentVariables.Add("FscToolExe", Path.Combine(monoWinBinDir, "fsharpc.bat"));
-            }
-
-            // Needed when running from Developer Command Prompt for VS
-            RemovePlatformVariable(startInfo.EnvironmentVariables);
-
-            process = new Process();
-            process.StartInfo = startInfo;
-            process.EnableRaisingEvents = true;
-            process.Exited += new EventHandler(BuildProcess_Exited);
-
-            process.Start();
-
-            if (redirectOutput)
-            {
-                process.BeginOutputReadLine();
-                process.BeginErrorReadLine();
-            }
-
-            return true;
-        }
-
-        private string BuildArguments(string loggerAssemblyPath, string loggerOutputDir, List<string> customProperties)
-        {
-            string arguments = string.Format(@"""{0}"" /v:normal /t:Rebuild ""/p:{1}"" ""/l:{2},{3};{4}""",
-                solution,
-                "Configuration=" + config,
-                typeof(GodotBuildLogger).FullName,
-                loggerAssemblyPath,
-                loggerOutputDir
-            );
-
-            foreach (string customProperty in customProperties)
-            {
-                arguments += " /p:" + customProperty;
-            }
-
-            return arguments;
-        }
-
-        private void RemovePlatformVariable(StringDictionary environmentVariables)
-        {
-            // EnvironmentVariables is case sensitive? Seriously?
-
-            List<string> platformEnvironmentVariables = new List<string>();
-
-            foreach (string env in environmentVariables.Keys)
-            {
-                if (env.ToUpper() == "PLATFORM")
-                    platformEnvironmentVariables.Add(env);
-            }
-
-            foreach (string env in platformEnvironmentVariables)
-                environmentVariables.Remove(env);
-        }
-
-        private void BuildProcess_Exited(object sender, System.EventArgs e)
-        {
-            exitCode = process.ExitCode;
-
-            godot_icall_BuildInstance_ExitCallback(solution, config, exitCode);
-
-            Dispose();
-        }
-
-        private static bool IsDebugMSBuildRequested()
-        {
-            return Environment.GetEnvironmentVariable("GODOT_DEBUG_MSBUILD")?.Trim() == "1";
-        }
-
-        public void Dispose()
-        {
-            if (process != null)
-            {
-                process.Dispose();
-                process = null;
-            }
-        }
-    }
-
-    public class GodotBuildLogger : ILogger
-    {
-        public string Parameters { get; set; }
-        public LoggerVerbosity Verbosity { get; set; }
-
-        public void Initialize(IEventSource eventSource)
-        {
-            if (null == Parameters)
-                throw new LoggerException("Log directory was not set.");
-
-            string[] parameters = Parameters.Split(new[] { ';' });
-
-            string logDir = parameters[0];
-
-            if (String.IsNullOrEmpty(logDir))
-                throw new LoggerException("Log directory was not set.");
-
-            if (parameters.Length > 1)
-                throw new LoggerException("Too many parameters passed.");
-
-            string logFile = Path.Combine(logDir, "msbuild_log.txt");
-            string issuesFile = Path.Combine(logDir, "msbuild_issues.csv");
-
-            try
-            {
-                if (!Directory.Exists(logDir))
-                    Directory.CreateDirectory(logDir);
-
-                this.logStreamWriter = new StreamWriter(logFile);
-                this.issuesStreamWriter = new StreamWriter(issuesFile);
-            }
-            catch (Exception ex)
-            {
-                if
-                (
-                    ex is UnauthorizedAccessException
-                    || ex is ArgumentNullException
-                    || ex is PathTooLongException
-                    || ex is DirectoryNotFoundException
-                    || ex is NotSupportedException
-                    || ex is ArgumentException
-                    || ex is SecurityException
-                    || ex is IOException
-                )
-                {
-                    throw new LoggerException("Failed to create log file: " + ex.Message);
-                }
-                else
-                {
-                    // Unexpected failure
-                    throw;
-                }
-            }
-
-            eventSource.ProjectStarted += new ProjectStartedEventHandler(eventSource_ProjectStarted);
-            eventSource.TaskStarted += new TaskStartedEventHandler(eventSource_TaskStarted);
-            eventSource.MessageRaised += new BuildMessageEventHandler(eventSource_MessageRaised);
-            eventSource.WarningRaised += new BuildWarningEventHandler(eventSource_WarningRaised);
-            eventSource.ErrorRaised += new BuildErrorEventHandler(eventSource_ErrorRaised);
-            eventSource.ProjectFinished += new ProjectFinishedEventHandler(eventSource_ProjectFinished);
-        }
-
-        void eventSource_ErrorRaised(object sender, BuildErrorEventArgs e)
-        {
-            string line = String.Format("{0}({1},{2}): error {3}: {4}", e.File, e.LineNumber, e.ColumnNumber, e.Code, e.Message);
-
-            if (e.ProjectFile.Length > 0)
-                line += string.Format(" [{0}]", e.ProjectFile);
-
-            WriteLine(line);
-
-            string errorLine = String.Format(@"error,{0},{1},{2},{3},{4},{5}",
-                                    e.File.CsvEscape(), e.LineNumber, e.ColumnNumber,
-                                    e.Code.CsvEscape(), e.Message.CsvEscape(), e.ProjectFile.CsvEscape());
-            issuesStreamWriter.WriteLine(errorLine);
-        }
-
-        void eventSource_WarningRaised(object sender, BuildWarningEventArgs e)
-        {
-            string line = String.Format("{0}({1},{2}): warning {3}: {4}", e.File, e.LineNumber, e.ColumnNumber, e.Code, e.Message, e.ProjectFile);
-
-            if (e.ProjectFile != null && e.ProjectFile.Length > 0)
-                line += string.Format(" [{0}]", e.ProjectFile);
-
-            WriteLine(line);
-
-            string warningLine = String.Format(@"warning,{0},{1},{2},{3},{4},{5}",
-                                    e.File.CsvEscape(), e.LineNumber, e.ColumnNumber,
-                                    e.Code.CsvEscape(), e.Message.CsvEscape(), e.ProjectFile != null ? e.ProjectFile.CsvEscape() : string.Empty);
-            issuesStreamWriter.WriteLine(warningLine);
-        }
-
-        void eventSource_MessageRaised(object sender, BuildMessageEventArgs e)
-        {
-            // BuildMessageEventArgs adds Importance to BuildEventArgs
-            // Let's take account of the verbosity setting we've been passed in deciding whether to log the message
-            if ((e.Importance == MessageImportance.High && IsVerbosityAtLeast(LoggerVerbosity.Minimal))
-                || (e.Importance == MessageImportance.Normal && IsVerbosityAtLeast(LoggerVerbosity.Normal))
-                || (e.Importance == MessageImportance.Low && IsVerbosityAtLeast(LoggerVerbosity.Detailed))
-                )
-            {
-                WriteLineWithSenderAndMessage(String.Empty, e);
-            }
-        }
-
-        void eventSource_TaskStarted(object sender, TaskStartedEventArgs e)
-        {
-            // TaskStartedEventArgs adds ProjectFile, TaskFile, TaskName
-            // To keep this log clean, this logger will ignore these events.
-        }
-
-        void eventSource_ProjectStarted(object sender, ProjectStartedEventArgs e)
-        {
-            WriteLine(e.Message);
-            indent++;
-        }
-
-        void eventSource_ProjectFinished(object sender, ProjectFinishedEventArgs e)
-        {
-            indent--;
-            WriteLine(e.Message);
-        }
-
-        /// <summary>
-        /// Write a line to the log, adding the SenderName
-        /// </summary>
-        private void WriteLineWithSender(string line, BuildEventArgs e)
-        {
-            if (0 == String.Compare(e.SenderName, "MSBuild", true /*ignore case*/))
-            {
-                // Well, if the sender name is MSBuild, let's leave it out for prettiness
-                WriteLine(line);
-            }
-            else
-            {
-                WriteLine(e.SenderName + ": " + line);
-            }
-        }
-
-        /// <summary>
-        /// Write a line to the log, adding the SenderName and Message
-        /// (these parameters are on all MSBuild event argument objects)
-        /// </summary>
-        private void WriteLineWithSenderAndMessage(string line, BuildEventArgs e)
-        {
-            if (0 == String.Compare(e.SenderName, "MSBuild", true /*ignore case*/))
-            {
-                // Well, if the sender name is MSBuild, let's leave it out for prettiness
-                WriteLine(line + e.Message);
-            }
-            else
-            {
-                WriteLine(e.SenderName + ": " + line + e.Message);
-            }
-        }
-
-        private void WriteLine(string line)
-        {
-            for (int i = indent; i > 0; i--)
-            {
-                logStreamWriter.Write("\t");
-            }
-            logStreamWriter.WriteLine(line);
-        }
-
-        public void Shutdown()
-        {
-            logStreamWriter.Close();
-            issuesStreamWriter.Close();
-        }
-
-        public bool IsVerbosityAtLeast(LoggerVerbosity checkVerbosity)
-        {
-            return this.Verbosity >= checkVerbosity;
-        }
-
-        private StreamWriter logStreamWriter;
-        private StreamWriter issuesStreamWriter;
-        private int indent;
-    }
-}
diff --git a/modules/mono/editor/GodotSharpTools/Editor/GodotSharpExport.cs b/modules/mono/editor/GodotSharpTools/Editor/GodotSharpExport.cs
deleted file mode 100644
index 44a43f0ddd..0000000000
--- a/modules/mono/editor/GodotSharpTools/Editor/GodotSharpExport.cs
+++ /dev/null
@@ -1,75 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Runtime.CompilerServices;
-
-namespace GodotSharpTools.Editor
-{
-    public static class GodotSharpExport
-    {
-        public static void _ExportBegin(string[] features, bool debug, string path, int flags)
-        {
-            var featureSet = new HashSet<string>(features);
-
-            if (PlatformHasTemplateDir(featureSet))
-            {
-                string templateDirName = "data.mono";
-
-                if (featureSet.Contains("Windows"))
-                {
-                    templateDirName += ".windows";
-                    templateDirName += featureSet.Contains("64") ? ".64" : ".32";
-                }
-                else if (featureSet.Contains("X11"))
-                {
-                    templateDirName += ".x11";
-                    templateDirName += featureSet.Contains("64") ? ".64" : ".32";
-                }
-                else
-                {
-                    throw new NotSupportedException("Target platform not supported");
-                }
-
-                templateDirName += debug ? ".release_debug" : ".release";
-
-                string templateDirPath = Path.Combine(GetTemplatesDir(), templateDirName);
-
-                if (!Directory.Exists(templateDirPath))
-                    throw new FileNotFoundException("Data template directory not found");
-
-                string outputDir = new FileInfo(path).Directory.FullName;
-
-                string outputDataDir = Path.Combine(outputDir, GetDataDirName());
-
-                if (Directory.Exists(outputDataDir))
-                    Directory.Delete(outputDataDir, recursive: true); // Clean first
-
-                Directory.CreateDirectory(outputDataDir);
-
-                foreach (string dir in Directory.GetDirectories(templateDirPath, "*", SearchOption.AllDirectories))
-                {
-                    Directory.CreateDirectory(Path.Combine(outputDataDir, dir.Substring(templateDirPath.Length + 1)));
-                }
-
-                foreach (string file in Directory.GetFiles(templateDirPath, "*", SearchOption.AllDirectories))
-                {
-                    File.Copy(file, Path.Combine(outputDataDir, file.Substring(templateDirPath.Length + 1)));
-                }
-            }
-        }
-
-        public static bool PlatformHasTemplateDir(HashSet<string> featureSet)
-        {
-            // OSX export templates are contained in a zip, so we place
-            // our custom template inside it and let Godot do the rest.
-            return !featureSet.Any(f => new[] {"OSX", "Android"}.Contains(f));
-        }
-
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        extern static string GetTemplatesDir();
-
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        extern static string GetDataDirName();
-    }
-}
diff --git a/modules/mono/editor/GodotSharpTools/GodotSharpTools.sln b/modules/mono/editor/GodotSharpTools/GodotSharpTools.sln
deleted file mode 100644
index 5f7d0e8a39..0000000000
--- a/modules/mono/editor/GodotSharpTools/GodotSharpTools.sln
+++ /dev/null
@@ -1,17 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 2012
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GodotSharpTools", "GodotSharpTools.csproj", "{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-EndGlobal
diff --git a/modules/mono/editor/GodotSharpTools/Utils/OS.cs b/modules/mono/editor/GodotSharpTools/Utils/OS.cs
deleted file mode 100644
index 148e954e77..0000000000
--- a/modules/mono/editor/GodotSharpTools/Utils/OS.cs
+++ /dev/null
@@ -1,62 +0,0 @@
-using System;
-using System.Linq;
-using System.Runtime.CompilerServices;
-
-namespace GodotSharpTools.Utils
-{
-    public static class OS
-    {
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        extern static string GetPlatformName();
-
-        const string HaikuName = "Haiku";
-        const string OSXName = "OSX";
-        const string ServerName = "Server";
-        const string UWPName = "UWP";
-        const string WindowsName = "Windows";
-        const string X11Name = "X11";
-
-        public static bool IsHaiku()
-        {
-            return HaikuName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
-        }
-
-        public static bool IsOSX()
-        {
-            return OSXName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
-        }
-
-        public static bool IsServer()
-        {
-            return ServerName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
-        }
-
-        public static bool IsUWP()
-        {
-            return UWPName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
-        }
-
-        public static bool IsWindows()
-        {
-            return WindowsName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
-        }
-
-        public static bool IsX11()
-        {
-            return X11Name.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
-        }
-
-        static bool? IsUnixCache = null;
-        static readonly string[] UnixPlatforms = new string[] { HaikuName, OSXName, ServerName, X11Name };
-
-        public static bool IsUnix()
-        {
-            if (IsUnixCache.HasValue)
-                return IsUnixCache.Value;
-
-            string osName = GetPlatformName();
-            IsUnixCache = UnixPlatforms.Any(p => p.Equals(osName, StringComparison.OrdinalIgnoreCase));
-            return IsUnixCache.Value;
-        }
-    }
-}
diff --git a/modules/mono/editor/GodotTools/.gitignore b/modules/mono/editor/GodotTools/.gitignore
new file mode 100644
index 0000000000..48e2f914d8
--- /dev/null
+++ b/modules/mono/editor/GodotTools/.gitignore
@@ -0,0 +1,356 @@
+# Rider
+.idea/
+
+# Visual Studio Code
+.vscode/
+
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
diff --git a/modules/mono/editor/GodotTools/GodotTools.BuildLogger/GodotBuildLogger.cs b/modules/mono/editor/GodotTools/GodotTools.BuildLogger/GodotBuildLogger.cs
new file mode 100644
index 0000000000..a0f6f1ff32
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.BuildLogger/GodotBuildLogger.cs
@@ -0,0 +1,186 @@
+using System;
+using System.IO;
+using System.Security;
+using Microsoft.Build.Framework;
+using GodotTools.Core;
+
+namespace GodotTools.BuildLogger
+{
+    public class GodotBuildLogger : ILogger
+    {
+        public static readonly string AssemblyPath = Path.GetFullPath(typeof(GodotBuildLogger).Assembly.Location);
+
+        public string Parameters { get; set; }
+        public LoggerVerbosity Verbosity { get; set; }
+
+        public void Initialize(IEventSource eventSource)
+        {
+            if (null == Parameters)
+                throw new LoggerException("Log directory was not set.");
+
+            var parameters = Parameters.Split(new[] {';'});
+
+            string logDir = parameters[0];
+
+            if (string.IsNullOrEmpty(logDir))
+                throw new LoggerException("Log directory was not set.");
+
+            if (parameters.Length > 1)
+                throw new LoggerException("Too many parameters passed.");
+
+            string logFile = Path.Combine(logDir, "msbuild_log.txt");
+            string issuesFile = Path.Combine(logDir, "msbuild_issues.csv");
+
+            try
+            {
+                if (!Directory.Exists(logDir))
+                    Directory.CreateDirectory(logDir);
+
+                logStreamWriter = new StreamWriter(logFile);
+                issuesStreamWriter = new StreamWriter(issuesFile);
+            }
+            catch (Exception ex)
+            {
+                if (ex is UnauthorizedAccessException
+                    || ex is ArgumentNullException
+                    || ex is PathTooLongException
+                    || ex is DirectoryNotFoundException
+                    || ex is NotSupportedException
+                    || ex is ArgumentException
+                    || ex is SecurityException
+                    || ex is IOException)
+                {
+                    throw new LoggerException("Failed to create log file: " + ex.Message);
+                }
+                else
+                {
+                    // Unexpected failure
+                    throw;
+                }
+            }
+
+            eventSource.ProjectStarted += eventSource_ProjectStarted;
+            eventSource.TaskStarted += eventSource_TaskStarted;
+            eventSource.MessageRaised += eventSource_MessageRaised;
+            eventSource.WarningRaised += eventSource_WarningRaised;
+            eventSource.ErrorRaised += eventSource_ErrorRaised;
+            eventSource.ProjectFinished += eventSource_ProjectFinished;
+        }
+
+        void eventSource_ErrorRaised(object sender, BuildErrorEventArgs e)
+        {
+            string line = $"{e.File}({e.LineNumber},{e.ColumnNumber}): error {e.Code}: {e.Message}";
+
+            if (e.ProjectFile.Length > 0)
+                line += $" [{e.ProjectFile}]";
+
+            WriteLine(line);
+
+            string errorLine = $@"error,{e.File.CsvEscape()},{e.LineNumber},{e.ColumnNumber}," +
+                               $@"{e.Code.CsvEscape()},{e.Message.CsvEscape()},{e.ProjectFile.CsvEscape()}";
+            issuesStreamWriter.WriteLine(errorLine);
+        }
+
+        void eventSource_WarningRaised(object sender, BuildWarningEventArgs e)
+        {
+            string line = $"{e.File}({e.LineNumber},{e.ColumnNumber}): warning {e.Code}: {e.Message}";
+
+            if (!string.IsNullOrEmpty(e.ProjectFile))
+                line += $" [{e.ProjectFile}]";
+
+            WriteLine(line);
+
+            string warningLine = $@"warning,{e.File.CsvEscape()},{e.LineNumber},{e.ColumnNumber},{e.Code.CsvEscape()}," +
+                                 $@"{e.Message.CsvEscape()},{(e.ProjectFile != null ? e.ProjectFile.CsvEscape() : string.Empty)}";
+            issuesStreamWriter.WriteLine(warningLine);
+        }
+
+        private void eventSource_MessageRaised(object sender, BuildMessageEventArgs e)
+        {
+            // BuildMessageEventArgs adds Importance to BuildEventArgs
+            // Let's take account of the verbosity setting we've been passed in deciding whether to log the message
+            if (e.Importance == MessageImportance.High && IsVerbosityAtLeast(LoggerVerbosity.Minimal)
+                || e.Importance == MessageImportance.Normal && IsVerbosityAtLeast(LoggerVerbosity.Normal)
+                || e.Importance == MessageImportance.Low && IsVerbosityAtLeast(LoggerVerbosity.Detailed))
+            {
+                WriteLineWithSenderAndMessage(string.Empty, e);
+            }
+        }
+
+        private void eventSource_TaskStarted(object sender, TaskStartedEventArgs e)
+        {
+            // TaskStartedEventArgs adds ProjectFile, TaskFile, TaskName
+            // To keep this log clean, this logger will ignore these events.
+        }
+
+        private void eventSource_ProjectStarted(object sender, ProjectStartedEventArgs e)
+        {
+            WriteLine(e.Message);
+            indent++;
+        }
+
+        private void eventSource_ProjectFinished(object sender, ProjectFinishedEventArgs e)
+        {
+            indent--;
+            WriteLine(e.Message);
+        }
+
+        /// <summary>
+        /// Write a line to the log, adding the SenderName
+        /// </summary>
+        private void WriteLineWithSender(string line, BuildEventArgs e)
+        {
+            if (0 == string.Compare(e.SenderName, "MSBuild", StringComparison.OrdinalIgnoreCase))
+            {
+                // Well, if the sender name is MSBuild, let's leave it out for prettiness
+                WriteLine(line);
+            }
+            else
+            {
+                WriteLine(e.SenderName + ": " + line);
+            }
+        }
+
+        /// <summary>
+        /// Write a line to the log, adding the SenderName and Message
+        /// (these parameters are on all MSBuild event argument objects)
+        /// </summary>
+        private void WriteLineWithSenderAndMessage(string line, BuildEventArgs e)
+        {
+            if (0 == string.Compare(e.SenderName, "MSBuild", StringComparison.OrdinalIgnoreCase))
+            {
+                // Well, if the sender name is MSBuild, let's leave it out for prettiness
+                WriteLine(line + e.Message);
+            }
+            else
+            {
+                WriteLine(e.SenderName + ": " + line + e.Message);
+            }
+        }
+
+        private void WriteLine(string line)
+        {
+            for (int i = indent; i > 0; i--)
+            {
+                logStreamWriter.Write("\t");
+            }
+
+            logStreamWriter.WriteLine(line);
+        }
+
+        public void Shutdown()
+        {
+            logStreamWriter.Close();
+            issuesStreamWriter.Close();
+        }
+
+        private bool IsVerbosityAtLeast(LoggerVerbosity checkVerbosity)
+        {
+            return Verbosity >= checkVerbosity;
+        }
+
+        private StreamWriter logStreamWriter;
+        private StreamWriter issuesStreamWriter;
+        private int indent;
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools.BuildLogger/GodotTools.BuildLogger.csproj b/modules/mono/editor/GodotTools/GodotTools.BuildLogger/GodotTools.BuildLogger.csproj
new file mode 100644
index 0000000000..f3ac353c0f
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.BuildLogger/GodotTools.BuildLogger.csproj
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{6CE9A984-37B1-4F8A-8FE9-609F05F071B3}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>GodotTools.BuildLogger</RootNamespace>
+    <AssemblyName>GodotTools.BuildLogger</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>portable</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>portable</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.Build.Framework" />
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="GodotBuildLogger.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\GodotTools.Core\GodotTools.Core.csproj">
+      <Project>{639e48bd-44e5-4091-8edd-22d36dc0768d}</Project>
+      <Name>GodotTools.Core</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+         Other similar extension points exist, see Microsoft.Common.targets.
+    <Target Name="BeforeBuild">
+    </Target>
+    <Target Name="AfterBuild">
+    </Target>
+    -->
+</Project>
\ No newline at end of file
diff --git a/modules/mono/editor/GodotTools/GodotTools.BuildLogger/Properties/AssemblyInfo.cs b/modules/mono/editor/GodotTools/GodotTools.BuildLogger/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000000..8717c4901e
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.BuildLogger/Properties/AssemblyInfo.cs
@@ -0,0 +1,35 @@
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("GodotTools.BuildLogger")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("Godot Engine contributors")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("6CE9A984-37B1-4F8A-8FE9-609F05F071B3")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/modules/mono/editor/GodotTools/GodotTools.Core/GodotTools.Core.csproj b/modules/mono/editor/GodotTools/GodotTools.Core/GodotTools.Core.csproj
new file mode 100644
index 0000000000..f36b40f87c
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.Core/GodotTools.Core.csproj
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{639E48BD-44E5-4091-8EDD-22D36DC0768D}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <RootNamespace>GodotTools.Core</RootNamespace>
+    <AssemblyName>GodotTools.Core</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="ProcessExtensions.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="StringExtensions.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/modules/mono/editor/GodotTools/GodotTools.Core/ProcessExtensions.cs b/modules/mono/editor/GodotTools/GodotTools.Core/ProcessExtensions.cs
new file mode 100644
index 0000000000..43d40f2ad9
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.Core/ProcessExtensions.cs
@@ -0,0 +1,38 @@
+using System;
+using System.Diagnostics;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace GodotTools.Core
+{
+    public static class ProcessExtensions
+    {
+        public static async Task WaitForExitAsync(this Process process, CancellationToken cancellationToken = default(CancellationToken))
+        {
+            var tcs = new TaskCompletionSource<bool>();
+
+            void ProcessExited(object sender, EventArgs e)
+            {
+                tcs.TrySetResult(true);
+            }
+
+            process.EnableRaisingEvents = true;
+            process.Exited += ProcessExited;
+
+            try
+            {
+                if (process.HasExited)
+                    return;
+
+                using (cancellationToken.Register(() => tcs.TrySetCanceled()))
+                {
+                    await tcs.Task;
+                }
+            }
+            finally
+            {
+                process.Exited -= ProcessExited;
+            }
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools.Core/Properties/AssemblyInfo.cs b/modules/mono/editor/GodotTools/GodotTools.Core/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000000..699ae6e741
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.Core/Properties/AssemblyInfo.cs
@@ -0,0 +1,26 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes.
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle("GodotTools.Core")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("Godot Engine contributors")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
+// The form "{Major}.{Minor}.*" will automatically update the build and revision,
+// and "{Major}.{Minor}.{Build}.*" will update just the revision.
+
+[assembly: AssemblyVersion("1.0.*")]
+
+// The following attributes are used to specify the signing key for the assembly,
+// if desired. See the Mono documentation for more information about signing.
+
+//[assembly: AssemblyDelaySign(false)]
+//[assembly: AssemblyKeyFile("")]
diff --git a/modules/mono/editor/GodotSharpTools/StringExtensions.cs b/modules/mono/editor/GodotTools/GodotTools.Core/StringExtensions.cs
index b0436d2f18..8cd7e76303 100644
--- a/modules/mono/editor/GodotSharpTools/StringExtensions.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.Core/StringExtensions.cs
@@ -1,7 +1,8 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 
-namespace GodotSharpTools
+namespace GodotTools.Core
 {
     public static class StringExtensions
     {
@@ -25,7 +26,7 @@ namespace GodotSharpTools
 
             path = path.Replace('\\', '/');
 
-            string[] parts = path.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
+            string[] parts = path.Split(new[] {'/'}, StringSplitOptions.RemoveEmptyEntries);
 
             path = string.Join(Path.DirectorySeparatorChar.ToString(), parts).Trim();
 
@@ -37,18 +38,40 @@ namespace GodotSharpTools
         public static bool IsAbsolutePath(this string path)
         {
             return path.StartsWith("/", StringComparison.Ordinal) ||
-                       path.StartsWith("\\", StringComparison.Ordinal) ||
-                       path.StartsWith(driveRoot, StringComparison.Ordinal);
+                   path.StartsWith("\\", StringComparison.Ordinal) ||
+                   path.StartsWith(driveRoot, StringComparison.Ordinal);
         }
 
         public static string CsvEscape(this string value, char delimiter = ',')
         {
-            bool hasSpecialChar = value.IndexOfAny(new char[] { '\"', '\n', '\r', delimiter }) != -1;
+            bool hasSpecialChar = value.IndexOfAny(new char[] {'\"', '\n', '\r', delimiter}) != -1;
 
             if (hasSpecialChar)
                 return "\"" + value.Replace("\"", "\"\"") + "\"";
 
             return value;
         }
+
+        public static string ToSafeDirName(this string dirName, bool allowDirSeparator)
+        {
+            var invalidChars = new List<string> {":", "*", "?", "\"", "<", ">", "|"};
+            
+            if (allowDirSeparator)
+            {
+                // Directory separators are allowed, but disallow ".." to avoid going up the filesystem
+                invalidChars.Add("..");
+            }
+            else
+            {
+                invalidChars.Add("/");
+            }
+
+            string safeDirName = dirName.Replace("\\", "/").Trim();
+
+            foreach (string invalidChar in invalidChars)
+                safeDirName = safeDirName.Replace(invalidChar, "-");
+
+            return safeDirName;
+        }
     }
 }
diff --git a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ApiAssembliesInfo.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ApiAssembliesInfo.cs
new file mode 100644
index 0000000000..345a472185
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ApiAssembliesInfo.cs
@@ -0,0 +1,15 @@
+namespace GodotTools
+{
+    public static class ApiAssemblyNames
+    {
+        public const string SolutionName = "GodotSharp";
+        public const string Core = "GodotSharp";
+        public const string Editor = "GodotSharpEditor";
+    }
+
+    public enum ApiAssemblyType
+    {
+        Core,
+        Editor
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ApiSolutionGenerator.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ApiSolutionGenerator.cs
new file mode 100644
index 0000000000..bfae2afc13
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ApiSolutionGenerator.cs
@@ -0,0 +1,52 @@
+using System.Collections.Generic;
+using System.IO;
+
+namespace GodotTools.ProjectEditor
+{
+    public static class ApiSolutionGenerator
+    {
+        public static void GenerateApiSolution(string solutionDir,
+            string coreProjDir, IEnumerable<string> coreCompileItems,
+            string editorProjDir, IEnumerable<string> editorCompileItems)
+        {
+            var solution = new DotNetSolution(ApiAssemblyNames.SolutionName);
+
+            solution.DirectoryPath = solutionDir;
+
+            // GodotSharp project
+
+            const string coreApiAssemblyName = ApiAssemblyNames.Core;
+
+            string coreGuid = ProjectGenerator.GenCoreApiProject(coreProjDir, coreCompileItems);
+
+            var coreProjInfo = new DotNetSolution.ProjectInfo
+            {
+                Guid = coreGuid,
+                PathRelativeToSolution = Path.Combine(coreApiAssemblyName, $"{coreApiAssemblyName}.csproj")
+            };
+            coreProjInfo.Configs.Add("Debug");
+            coreProjInfo.Configs.Add("Release");
+
+            solution.AddNewProject(coreApiAssemblyName, coreProjInfo);
+
+            // GodotSharpEditor project
+
+            const string editorApiAssemblyName = ApiAssemblyNames.Editor;
+
+            string editorGuid = ProjectGenerator.GenEditorApiProject(editorProjDir,
+                $"../{coreApiAssemblyName}/{coreApiAssemblyName}.csproj", editorCompileItems);
+
+            var editorProjInfo = new DotNetSolution.ProjectInfo();
+            editorProjInfo.Guid = editorGuid;
+            editorProjInfo.PathRelativeToSolution = Path.Combine(editorApiAssemblyName, $"{editorApiAssemblyName}.csproj");
+            editorProjInfo.Configs.Add("Debug");
+            editorProjInfo.Configs.Add("Release");
+
+            solution.AddNewProject(editorApiAssemblyName, editorProjInfo);
+
+            // Save solution
+
+            solution.Save();
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/DotNetSolution.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/DotNetSolution.cs
new file mode 100644
index 0000000000..76cb249acf
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/DotNetSolution.cs
@@ -0,0 +1,122 @@
+using GodotTools.Core;
+using System.Collections.Generic;
+using System.IO;
+
+namespace GodotTools.ProjectEditor
+{
+    public class DotNetSolution
+    {
+        private string directoryPath;
+        private readonly Dictionary<string, ProjectInfo> projects = new Dictionary<string, ProjectInfo>();
+
+        public string Name { get; }
+
+        public string DirectoryPath
+        {
+            get => directoryPath;
+            set => directoryPath = value.IsAbsolutePath() ? value : Path.GetFullPath(value);
+        }
+
+        public class ProjectInfo
+        {
+            public string Guid;
+            public string PathRelativeToSolution;
+            public List<string> Configs = new List<string>();
+        }
+
+        public void AddNewProject(string name, ProjectInfo projectInfo)
+        {
+            projects[name] = projectInfo;
+        }
+
+        public bool HasProject(string name)
+        {
+            return projects.ContainsKey(name);
+        }
+
+        public ProjectInfo GetProjectInfo(string name)
+        {
+            return projects[name];
+        }
+
+        public bool RemoveProject(string name)
+        {
+            return projects.Remove(name);
+        }
+
+        public void Save()
+        {
+            if (!Directory.Exists(DirectoryPath))
+                throw new FileNotFoundException("The solution directory does not exist.");
+
+            string projectsDecl = string.Empty;
+            string slnPlatformsCfg = string.Empty;
+            string projPlatformsCfg = string.Empty;
+
+            bool isFirstProject = true;
+
+            foreach (var pair in projects)
+            {
+                string name = pair.Key;
+                ProjectInfo projectInfo = pair.Value;
+
+                if (!isFirstProject)
+                    projectsDecl += "\n";
+
+                projectsDecl += string.Format(ProjectDeclaration,
+                    name, projectInfo.PathRelativeToSolution.Replace("/", "\\"), projectInfo.Guid);
+
+                for (int i = 0; i < projectInfo.Configs.Count; i++)
+                {
+                    string config = projectInfo.Configs[i];
+
+                    if (i != 0 || !isFirstProject)
+                    {
+                        slnPlatformsCfg += "\n";
+                        projPlatformsCfg += "\n";
+                    }
+
+                    slnPlatformsCfg += string.Format(SolutionPlatformsConfig, config);
+                    projPlatformsCfg += string.Format(ProjectPlatformsConfig, projectInfo.Guid, config);
+                }
+
+                isFirstProject = false;
+            }
+
+            string solutionPath = Path.Combine(DirectoryPath, Name + ".sln");
+            string content = string.Format(SolutionTemplate, projectsDecl, slnPlatformsCfg, projPlatformsCfg);
+
+            File.WriteAllText(solutionPath, content);
+        }
+
+        public DotNetSolution(string name)
+        {
+            Name = name;
+        }
+
+        const string SolutionTemplate =
+@"Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+{0}
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+{1}
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+{2}
+	EndGlobalSection
+EndGlobal
+";
+
+        const string ProjectDeclaration =
+@"Project(""{{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}}"") = ""{0}"", ""{1}"", ""{{{2}}}""
+EndProject";
+
+        const string SolutionPlatformsConfig =
+@"	{0}|Any CPU = {0}|Any CPU";
+
+        const string ProjectPlatformsConfig =
+@"		{{{0}}}.{1}|Any CPU.ActiveCfg = {1}|Any CPU
+		{{{0}}}.{1}|Any CPU.Build.0 = {1}|Any CPU";
+    }
+}
diff --git a/modules/mono/editor/GodotSharpTools/GodotSharpTools.csproj b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/GodotTools.ProjectEditor.csproj
index 2871c041f5..08b8ba3946 100644
--- a/modules/mono/editor/GodotSharpTools/GodotSharpTools.csproj
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/GodotTools.ProjectEditor.csproj
@@ -1,12 +1,12 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}</ProjectGuid>
     <OutputType>Library</OutputType>
-    <RootNamespace>GodotSharpTools</RootNamespace>
-    <AssemblyName>GodotSharpTools</AssemblyName>
+    <RootNamespace>GodotTools.ProjectEditor</RootNamespace>
+    <AssemblyName>GodotTools.ProjectEditor</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <BaseIntermediateOutputPath>obj</BaseIntermediateOutputPath>
   </PropertyGroup>
@@ -21,7 +21,6 @@
     <ConsolePause>false</ConsolePause>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>portable</DebugType>
     <Optimize>true</Optimize>
     <OutputPath>bin\Release</OutputPath>
     <ErrorReport>prompt</ErrorReport>
@@ -31,25 +30,35 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="Microsoft.Build" />
-    <Reference Include="Microsoft.Build.Framework" />
     <Reference Include="DotNet.Glob, Version=2.1.1.0, Culture=neutral, PublicKeyToken=b68cc888b4f632d1, processorArchitecture=MSIL">
-      <HintPath>packages\DotNet.Glob.2.1.1\lib\net45\DotNet.Glob.dll</HintPath>
+      <!--
+      When building Godot with 'mono_glue=no' SCons will build this project alone instead of the
+      entire solution. $(SolutionDir) is not defined in that case, so we need to workaround that.
+      We make SCons restore the NuGet packages in the project directory instead in this case.
+      -->
+      <HintPath Condition=" '$(SolutionDir)' != '' ">$(SolutionDir)\packages\DotNet.Glob.2.1.1\lib\net45\DotNet.Glob.dll</HintPath>
+      <HintPath>$(ProjectDir)\packages\DotNet.Glob.2.1.1\lib\net45\DotNet.Glob.dll</HintPath>
+      <HintPath>packages\DotNet.Glob.2.1.1\lib\net45\DotNet.Glob.dll</HintPath> <!-- Are you happy CI? -->
     </Reference>
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="StringExtensions.cs" />
-    <Compile Include="Build\BuildSystem.cs" />
-    <Compile Include="Editor\MonoDevelopInstance.cs" />
-    <Compile Include="Project\ProjectExtensions.cs" />
-    <Compile Include="Project\IdentifierUtils.cs" />
-    <Compile Include="Project\ProjectGenerator.cs" />
-    <Compile Include="Project\ProjectUtils.cs" />
+    <Compile Include="ApiAssembliesInfo.cs" />
+    <Compile Include="ApiSolutionGenerator.cs" />
+    <Compile Include="DotNetSolution.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="Utils\OS.cs" />
-    <Compile Include="Editor\GodotSharpExport.cs" />
+    <Compile Include="IdentifierUtils.cs" />
+    <Compile Include="ProjectExtensions.cs" />
+    <Compile Include="ProjectGenerator.cs" />
+    <Compile Include="ProjectUtils.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\GodotTools.Core\GodotTools.Core.csproj">
+      <Project>{639E48BD-44E5-4091-8EDD-22D36DC0768D}</Project>
+      <Name>GodotTools.Core</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-</Project>
\ No newline at end of file
+</Project>
diff --git a/modules/mono/editor/GodotSharpTools/Project/IdentifierUtils.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/IdentifierUtils.cs
index 83e2d2cf8d..f93eb9a1fa 100644
--- a/modules/mono/editor/GodotSharpTools/Project/IdentifierUtils.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/IdentifierUtils.cs
@@ -3,7 +3,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.Text;
 
-namespace GodotSharpTools.Project
+namespace GodotTools.ProjectEditor
 {
     public static class IdentifierUtils
     {
@@ -12,7 +12,7 @@ namespace GodotSharpTools.Project
             if (string.IsNullOrEmpty(qualifiedIdentifier))
                 throw new ArgumentException($"{nameof(qualifiedIdentifier)} cannot be empty", nameof(qualifiedIdentifier));
 
-            string[] identifiers = qualifiedIdentifier.Split(new[] { '.' });
+            string[] identifiers = qualifiedIdentifier.Split('.');
 
             for (int i = 0; i < identifiers.Length; i++)
             {
@@ -66,8 +66,6 @@ namespace GodotSharpTools.Project
                         if (identifierBuilder.Length > startIndex || @char == '_')
                             identifierBuilder.Append(@char);
                         break;
-                    default:
-                        break;
                 }
             }
 
@@ -97,14 +95,14 @@ namespace GodotSharpTools.Project
             }
             else
             {
-                if (_doubleUnderscoreKeywords.Contains(value))
+                if (DoubleUnderscoreKeywords.Contains(value))
                     return true;
             }
 
-            return _keywords.Contains(value);
+            return Keywords.Contains(value);
         }
 
-        static HashSet<string> _doubleUnderscoreKeywords = new HashSet<string>
+        private static readonly HashSet<string> DoubleUnderscoreKeywords = new HashSet<string>
         {
             "__arglist",
             "__makeref",
@@ -112,7 +110,7 @@ namespace GodotSharpTools.Project
             "__refvalue",
         };
 
-        static HashSet<string> _keywords = new HashSet<string>
+        private static readonly HashSet<string> Keywords = new HashSet<string>
         {
             "as",
             "do",
diff --git a/modules/mono/editor/GodotSharpTools/Project/ProjectExtensions.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectExtensions.cs
index 647d9ac81d..36961eb45e 100644
--- a/modules/mono/editor/GodotSharpTools/Project/ProjectExtensions.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectExtensions.cs
@@ -1,8 +1,9 @@
+using GodotTools.Core;
 using System;
 using DotNet.Globbing;
 using Microsoft.Build.Construction;
 
-namespace GodotSharpTools.Project
+namespace GodotTools.ProjectEditor
 {
     public static class ProjectExtensions
     {
diff --git a/modules/mono/editor/GodotSharpTools/Project/ProjectGenerator.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectGenerator.cs
index f4ab11a222..7cf58b6755 100644
--- a/modules/mono/editor/GodotSharpTools/Project/ProjectGenerator.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectGenerator.cs
@@ -1,17 +1,19 @@
+using GodotTools.Core;
 using System;
+using System.Collections.Generic;
 using System.IO;
 using Microsoft.Build.Construction;
 
-namespace GodotSharpTools.Project
+namespace GodotTools.ProjectEditor
 {
     public static class ProjectGenerator
     {
-        public const string CoreApiProjectName = "GodotSharp";
-        public const string EditorApiProjectName = "GodotSharpEditor";
-        const string CoreApiProjectGuid = "{AEBF0036-DA76-4341-B651-A3F2856AB2FA}";
-        const string EditorApiProjectGuid = "{8FBEC238-D944-4074-8548-B3B524305905}";
+        private const string CoreApiProjectName = "GodotSharp";
+        private const string EditorApiProjectName = "GodotSharpEditor";
+        private const string CoreApiProjectGuid = "{AEBF0036-DA76-4341-B651-A3F2856AB2FA}";
+        private const string EditorApiProjectGuid = "{8FBEC238-D944-4074-8548-B3B524305905}";
 
-        public static string GenCoreApiProject(string dir, string[] compileItems)
+        public static string GenCoreApiProject(string dir, IEnumerable<string> compileItems)
         {
             string path = Path.Combine(dir, CoreApiProjectName + ".csproj");
 
@@ -24,8 +26,8 @@ namespace GodotSharpTools.Project
             mainGroup.SetProperty("BaseIntermediateOutputPath", "obj");
 
             GenAssemblyInfoFile(root, dir, CoreApiProjectName,
-                                new string[] { "[assembly: InternalsVisibleTo(\"" + EditorApiProjectName + "\")]" },
-                                new string[] { "System.Runtime.CompilerServices" });
+                new[] {"[assembly: InternalsVisibleTo(\"" + EditorApiProjectName + "\")]"},
+                new[] {"System.Runtime.CompilerServices"});
 
             foreach (var item in compileItems)
             {
@@ -37,7 +39,7 @@ namespace GodotSharpTools.Project
             return CoreApiProjectGuid;
         }
 
-        public static string GenEditorApiProject(string dir, string coreApiProjPath, string[] compileItems)
+        public static string GenEditorApiProject(string dir, string coreApiProjPath, IEnumerable<string> compileItems)
         {
             string path = Path.Combine(dir, EditorApiProjectName + ".csproj");
 
@@ -64,7 +66,7 @@ namespace GodotSharpTools.Project
             return EditorApiProjectGuid;
         }
 
-        public static string GenGameProject(string dir, string name, string[] compileItems)
+        public static string GenGameProject(string dir, string name, IEnumerable<string> compileItems)
         {
             string path = Path.Combine(dir, name + ".csproj");
 
@@ -74,6 +76,8 @@ namespace GodotSharpTools.Project
             mainGroup.SetProperty("OutputPath", Path.Combine(".mono", "temp", "bin", "$(Configuration)"));
             mainGroup.SetProperty("BaseIntermediateOutputPath", Path.Combine(".mono", "temp", "obj"));
             mainGroup.SetProperty("IntermediateOutputPath", Path.Combine("$(BaseIntermediateOutputPath)", "$(Configuration)"));
+            mainGroup.SetProperty("ApiConfiguration", "Debug").Condition = " '$(Configuration)' != 'Release' ";
+            mainGroup.SetProperty("ApiConfiguration", "Release").Condition = " '$(Configuration)' == 'Release' ";
 
             var toolsGroup = root.AddPropertyGroup();
             toolsGroup.Condition = " '$(Configuration)|$(Platform)' == 'Tools|AnyCPU' ";
@@ -86,11 +90,13 @@ namespace GodotSharpTools.Project
             toolsGroup.AddProperty("ConsolePause", "false");
 
             var coreApiRef = root.AddItem("Reference", CoreApiProjectName);
+            coreApiRef.AddMetadata("HintPath", Path.Combine("$(ProjectDir)", ".mono", "assemblies", "$(ApiConfiguration)", CoreApiProjectName + ".dll"));
             coreApiRef.AddMetadata("HintPath", Path.Combine("$(ProjectDir)", ".mono", "assemblies", CoreApiProjectName + ".dll"));
             coreApiRef.AddMetadata("Private", "False");
 
             var editorApiRef = root.AddItem("Reference", EditorApiProjectName);
             editorApiRef.Condition = " '$(Configuration)' == 'Tools' ";
+            editorApiRef.AddMetadata("HintPath", Path.Combine("$(ProjectDir)", ".mono", "assemblies", "$(ApiConfiguration)", EditorApiProjectName + ".dll"));
             editorApiRef.AddMetadata("HintPath", Path.Combine("$(ProjectDir)", ".mono", "assemblies", EditorApiProjectName + ".dll"));
             editorApiRef.AddMetadata("Private", "False");
 
@@ -108,7 +114,6 @@ namespace GodotSharpTools.Project
 
         public static void GenAssemblyInfoFile(ProjectRootElement root, string dir, string name, string[] assemblyLines = null, string[] usingDirectives = null)
         {
-
             string propertiesDir = Path.Combine(dir, "Properties");
             if (!Directory.Exists(propertiesDir))
                 Directory.CreateDirectory(propertiesDir);
@@ -124,12 +129,9 @@ namespace GodotSharpTools.Project
             string assemblyLinesText = string.Empty;
 
             if (assemblyLines != null)
-            {
-                foreach (var assemblyLine in assemblyLines)
-                    assemblyLinesText += string.Join("\n", assemblyLines) + "\n";
-            }
+                assemblyLinesText += string.Join("\n", assemblyLines) + "\n";
 
-            string content = string.Format(assemblyInfoTemplate, usingDirectivesText, name, assemblyLinesText);
+            string content = string.Format(AssemblyInfoTemplate, usingDirectivesText, name, assemblyLinesText);
 
             string assemblyInfoFile = Path.Combine(propertiesDir, "AssemblyInfo.cs");
 
@@ -194,8 +196,8 @@ namespace GodotSharpTools.Project
             }
         }
 
-        private const string assemblyInfoTemplate =
-@"using System.Reflection;{0}
+        private const string AssemblyInfoTemplate =
+            @"using System.Reflection;{0}
 
 // Information about this assembly is defined by the following attributes.
 // Change them to the values specific to your project.
diff --git a/modules/mono/editor/GodotSharpTools/Project/ProjectUtils.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectUtils.cs
index a13f4fd6ef..22cf89695d 100644
--- a/modules/mono/editor/GodotSharpTools/Project/ProjectUtils.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectUtils.cs
@@ -1,9 +1,10 @@
+using GodotTools.Core;
 using System.Collections.Generic;
 using System.IO;
 using DotNet.Globbing;
 using Microsoft.Build.Construction;
 
-namespace GodotSharpTools.Project
+namespace GodotTools.ProjectEditor
 {
     public static class ProjectUtils
     {
@@ -53,7 +54,7 @@ namespace GodotSharpTools.Project
 
                     var glob = Glob.Parse(normalizedInclude, globOptions);
 
-                    // TODO Check somehow if path has no blog to avoid the following loop...
+                    // TODO Check somehow if path has no blob to avoid the following loop...
 
                     foreach (var existingFile in existingFiles)
                     {
diff --git a/modules/mono/editor/GodotSharpTools/Properties/AssemblyInfo.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/Properties/AssemblyInfo.cs
index 7115d8fc71..09333850fc 100644
--- a/modules/mono/editor/GodotSharpTools/Properties/AssemblyInfo.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/Properties/AssemblyInfo.cs
@@ -4,12 +4,12 @@ using System.Runtime.CompilerServices;
 // Information about this assembly is defined by the following attributes.
 // Change them to the values specific to your project.
 
-[assembly: AssemblyTitle("GodotSharpTools")]
+[assembly: AssemblyTitle("GodotTools.ProjectEditor")]
 [assembly: AssemblyDescription("")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("")]
-[assembly: AssemblyCopyright("ignacio")]
+[assembly: AssemblyCopyright("Godot Engine contributors")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
diff --git a/modules/mono/editor/GodotSharpTools/packages.config b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/packages.config
index 2c7cb0bd4b..13915000e4 100644
--- a/modules/mono/editor/GodotSharpTools/packages.config
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/packages.config
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="DotNet.Glob" version="2.1.1" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs b/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs
new file mode 100644
index 0000000000..f849356919
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs
@@ -0,0 +1,172 @@
+using GodotTools.Core;
+using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Diagnostics;
+using System.IO;
+using System.Threading.Tasks;
+using GodotTools.BuildLogger;
+using GodotTools.Internals;
+using GodotTools.Utils;
+using Directory = System.IO.Directory;
+
+namespace GodotTools.Build
+{
+    public static class BuildSystem
+    {
+        private static string GetMsBuildPath()
+        {
+            string msbuildPath = MsBuildFinder.FindMsBuild();
+
+            if (msbuildPath == null)
+                throw new FileNotFoundException("Cannot find the MSBuild executable.");
+
+            return msbuildPath;
+        }
+
+        private static string MonoWindowsBinDir
+        {
+            get
+            {
+                string monoWinBinDir = Path.Combine(Internal.MonoWindowsInstallRoot, "bin");
+
+                if (!Directory.Exists(monoWinBinDir))
+                    throw new FileNotFoundException("Cannot find the Windows Mono install bin directory.");
+
+                return monoWinBinDir;
+            }
+        }
+
+        private static Godot.EditorSettings EditorSettings =>
+            GodotSharpEditor.Instance.GetEditorInterface().GetEditorSettings();
+
+        private static bool UsingMonoMsBuildOnWindows
+        {
+            get
+            {
+                if (OS.IsWindows())
+                {
+                    return (GodotSharpBuilds.BuildTool) EditorSettings.GetSetting("mono/builds/build_tool")
+                           == GodotSharpBuilds.BuildTool.MsBuildMono;
+                }
+
+                return false;
+            }
+        }
+
+        private static bool PrintBuildOutput =>
+            (bool) EditorSettings.GetSetting("mono/builds/print_build_output");
+
+        private static Process LaunchBuild(string solution, string config, string loggerOutputDir, IEnumerable<string> customProperties = null)
+        {
+            var customPropertiesList = new List<string>();
+
+            if (customProperties != null)
+                customPropertiesList.AddRange(customProperties);
+
+            string compilerArgs = BuildArguments(solution, config, loggerOutputDir, customPropertiesList);
+
+            var startInfo = new ProcessStartInfo(GetMsBuildPath(), compilerArgs);
+
+            bool redirectOutput = !IsDebugMsBuildRequested() && !PrintBuildOutput;
+
+            if (!redirectOutput || Godot.OS.IsStdoutVerbose())
+                Console.WriteLine($"Running: \"{startInfo.FileName}\" {startInfo.Arguments}");
+
+            startInfo.RedirectStandardOutput = redirectOutput;
+            startInfo.RedirectStandardError = redirectOutput;
+            startInfo.UseShellExecute = false;
+
+            if (UsingMonoMsBuildOnWindows)
+            {
+                // These environment variables are required for Mono's MSBuild to find the compilers.
+                // We use the batch files in Mono's bin directory to make sure the compilers are executed with mono.
+                string monoWinBinDir = MonoWindowsBinDir;
+                startInfo.EnvironmentVariables.Add("CscToolExe", Path.Combine(monoWinBinDir, "csc.bat"));
+                startInfo.EnvironmentVariables.Add("VbcToolExe", Path.Combine(monoWinBinDir, "vbc.bat"));
+                startInfo.EnvironmentVariables.Add("FscToolExe", Path.Combine(monoWinBinDir, "fsharpc.bat"));
+            }
+
+            // Needed when running from Developer Command Prompt for VS
+            RemovePlatformVariable(startInfo.EnvironmentVariables);
+
+            var process = new Process {StartInfo = startInfo};
+
+            process.Start();
+
+            if (redirectOutput)
+            {
+                process.BeginOutputReadLine();
+                process.BeginErrorReadLine();
+            }
+
+            return process;
+        }
+
+        public static int Build(MonoBuildInfo monoBuildInfo)
+        {
+            return Build(monoBuildInfo.Solution, monoBuildInfo.Configuration,
+                monoBuildInfo.LogsDirPath, monoBuildInfo.CustomProperties);
+        }
+
+        public static async Task<int> BuildAsync(MonoBuildInfo monoBuildInfo)
+        {
+            return await BuildAsync(monoBuildInfo.Solution, monoBuildInfo.Configuration,
+                monoBuildInfo.LogsDirPath, monoBuildInfo.CustomProperties);
+        }
+
+        public static int Build(string solution, string config, string loggerOutputDir, IEnumerable<string> customProperties = null)
+        {
+            using (var process = LaunchBuild(solution, config, loggerOutputDir, customProperties))
+            {
+                process.WaitForExit();
+
+                return process.ExitCode;
+            }
+        }
+
+        public static async Task<int> BuildAsync(string solution, string config, string loggerOutputDir, IEnumerable<string> customProperties = null)
+        {
+            using (var process = LaunchBuild(solution, config, loggerOutputDir, customProperties))
+            {
+                await process.WaitForExitAsync();
+
+                return process.ExitCode;
+            }
+        }
+
+        private static string BuildArguments(string solution, string config, string loggerOutputDir, List<string> customProperties)
+        {
+            string arguments = $@"""{solution}"" /v:normal /t:Rebuild ""/p:{"Configuration=" + config}"" " +
+                               $@"""/l:{typeof(GodotBuildLogger).FullName},{GodotBuildLogger.AssemblyPath};{loggerOutputDir}""";
+
+            foreach (string customProperty in customProperties)
+            {
+                arguments += " /p:" + customProperty;
+            }
+
+            return arguments;
+        }
+
+        private static void RemovePlatformVariable(StringDictionary environmentVariables)
+        {
+            // EnvironmentVariables is case sensitive? Seriously?
+
+            var platformEnvironmentVariables = new List<string>();
+
+            foreach (string env in environmentVariables.Keys)
+            {
+                if (env.ToUpper() == "PLATFORM")
+                    platformEnvironmentVariables.Add(env);
+            }
+
+            foreach (string env in platformEnvironmentVariables)
+                environmentVariables.Remove(env);
+        }
+
+        private static bool IsDebugMsBuildRequested()
+        {
+            return Environment.GetEnvironmentVariable("GODOT_DEBUG_MSBUILD")?.Trim() == "1";
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/MsBuildFinder.cs b/modules/mono/editor/GodotTools/GodotTools/Build/MsBuildFinder.cs
new file mode 100644
index 0000000000..a0d14c43c9
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/MsBuildFinder.cs
@@ -0,0 +1,210 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Godot;
+using GodotTools.Internals;
+using Directory = System.IO.Directory;
+using Environment = System.Environment;
+using File = System.IO.File;
+using Path = System.IO.Path;
+using OS = GodotTools.Utils.OS;
+
+namespace GodotTools.Build
+{
+    public static class MsBuildFinder
+    {
+        private static string _msbuildToolsPath = string.Empty;
+        private static string _msbuildUnixPath = string.Empty;
+        private static string _xbuildUnixPath = string.Empty;
+
+        public static string FindMsBuild()
+        {
+            var editorSettings = GodotSharpEditor.Instance.GetEditorInterface().GetEditorSettings();
+            var buildTool = (GodotSharpBuilds.BuildTool) editorSettings.GetSetting("mono/builds/build_tool");
+
+            if (OS.IsWindows())
+            {
+                switch (buildTool)
+                {
+                    case GodotSharpBuilds.BuildTool.MsBuildVs:
+                    {
+                        if (_msbuildToolsPath.Empty() || !File.Exists(_msbuildToolsPath))
+                        {
+                            // Try to search it again if it wasn't found last time or if it was removed from its location
+                            _msbuildToolsPath = FindMsBuildToolsPathOnWindows();
+
+                            if (_msbuildToolsPath.Empty())
+                            {
+                                throw new FileNotFoundException($"Cannot find executable for '{GodotSharpBuilds.PropNameMsbuildVs}'. Tried with path: {_msbuildToolsPath}");
+                            }
+                        }
+
+                        if (!_msbuildToolsPath.EndsWith("\\"))
+                            _msbuildToolsPath += "\\";
+
+                        return Path.Combine(_msbuildToolsPath, "MSBuild.exe");
+                    }
+
+                    case GodotSharpBuilds.BuildTool.MsBuildMono:
+                    {
+                        string msbuildPath = Path.Combine(Internal.MonoWindowsInstallRoot, "bin", "msbuild.bat");
+
+                        if (!File.Exists(msbuildPath))
+                        {
+                            throw new FileNotFoundException($"Cannot find executable for '{GodotSharpBuilds.PropNameMsbuildMono}'. Tried with path: {msbuildPath}");
+                        }
+
+                        return msbuildPath;
+                    }
+
+                    case GodotSharpBuilds.BuildTool.XBuild:
+                    {
+                        string xbuildPath = Path.Combine(Internal.MonoWindowsInstallRoot, "bin", "xbuild.bat");
+
+                        if (!File.Exists(xbuildPath))
+                        {
+                            throw new FileNotFoundException($"Cannot find executable for '{GodotSharpBuilds.PropNameXbuild}'. Tried with path: {xbuildPath}");
+                        }
+
+                        return xbuildPath;
+                    }
+
+                    default:
+                        throw new IndexOutOfRangeException("Invalid build tool in editor settings");
+                }
+            }
+
+            if (OS.IsUnix())
+            {
+                if (buildTool == GodotSharpBuilds.BuildTool.XBuild)
+                {
+                    if (_xbuildUnixPath.Empty() || !File.Exists(_xbuildUnixPath))
+                    {
+                        // Try to search it again if it wasn't found last time or if it was removed from its location
+                        _xbuildUnixPath = FindBuildEngineOnUnix("msbuild");
+                    }
+
+                    if (_xbuildUnixPath.Empty())
+                    {
+                        throw new FileNotFoundException($"Cannot find binary for '{GodotSharpBuilds.PropNameXbuild}'");
+                    }
+                }
+                else
+                {
+                    if (_msbuildUnixPath.Empty() || !File.Exists(_msbuildUnixPath))
+                    {
+                        // Try to search it again if it wasn't found last time or if it was removed from its location
+                        _msbuildUnixPath = FindBuildEngineOnUnix("msbuild");
+                    }
+
+                    if (_msbuildUnixPath.Empty())
+                    {
+                        throw new FileNotFoundException($"Cannot find binary for '{GodotSharpBuilds.PropNameMsbuildMono}'");
+                    }
+                }
+
+                return buildTool != GodotSharpBuilds.BuildTool.XBuild ? _msbuildUnixPath : _xbuildUnixPath;
+            }
+
+            throw new PlatformNotSupportedException();
+        }
+
+        private static IEnumerable<string> MsBuildHintDirs
+        {
+            get
+            {
+                var result = new List<string>();
+
+                if (OS.IsOSX())
+                {
+                    result.Add("/Library/Frameworks/Mono.framework/Versions/Current/bin/");
+                    result.Add("/usr/local/var/homebrew/linked/mono/bin/");
+                }
+
+                result.Add("/opt/novell/mono/bin/");
+
+                return result;
+            }
+        }
+
+        private static string FindBuildEngineOnUnix(string name)
+        {
+            string ret = OS.PathWhich(name);
+
+            if (!ret.Empty())
+                return ret;
+
+            string retFallback = OS.PathWhich($"{name}.exe");
+
+            if (!retFallback.Empty())
+                return retFallback;
+
+            foreach (string hintDir in MsBuildHintDirs)
+            {
+                string hintPath = Path.Combine(hintDir, name);
+
+                if (File.Exists(hintPath))
+                    return hintPath;
+            }
+
+            return string.Empty;
+        }
+
+        private static string FindMsBuildToolsPathOnWindows()
+        {
+            if (!OS.IsWindows())
+                throw new PlatformNotSupportedException();
+
+            // Try to find 15.0 with vswhere
+
+            string vsWherePath = Environment.GetEnvironmentVariable(Internal.GodotIs32Bits() ? "ProgramFiles" : "ProgramFiles(x86)");
+            vsWherePath += "\\Microsoft Visual Studio\\Installer\\vswhere.exe";
+
+            var vsWhereArgs = new[] {"-latest", "-products", "*", "-requires", "Microsoft.Component.MSBuild"};
+
+            var outputArray = new Godot.Collections.Array<string>();
+            int exitCode = Godot.OS.Execute(vsWherePath, vsWhereArgs,
+                blocking: true, output: (Godot.Collections.Array) outputArray);
+
+            if (exitCode == 0)
+                return string.Empty;
+
+            if (outputArray.Count == 0)
+                return string.Empty;
+
+            var lines = outputArray[1].Split('\n');
+
+            foreach (string line in lines)
+            {
+                int sepIdx = line.IndexOf(':');
+
+                if (sepIdx <= 0)
+                    continue;
+
+                string key = line.Substring(0, sepIdx); // No need to trim
+
+                if (key != "installationPath")
+                    continue;
+
+                string value = line.Substring(sepIdx + 1).StripEdges();
+
+                if (value.Empty())
+                    throw new FormatException("installationPath value is empty");
+
+                if (!value.EndsWith("\\"))
+                    value += "\\";
+
+                // Since VS2019, the directory is simply named "Current"
+                string msbuildDir = Path.Combine(value, "MSBuild\\Current\\Bin");
+
+                if (Directory.Exists(msbuildDir))
+                    return msbuildDir;
+
+                // Directory name "15.0" is used in VS 2017
+                return Path.Combine(value, "MSBuild\\15.0\\Bin");
+            }
+
+            return string.Empty;
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/CSharpProject.cs b/modules/mono/editor/GodotTools/GodotTools/CSharpProject.cs
new file mode 100644
index 0000000000..0426f0ac5a
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/CSharpProject.cs
@@ -0,0 +1,115 @@
+using Godot;
+using System;
+using System.Collections.Generic;
+using Godot.Collections;
+using GodotTools.Internals;
+using GodotTools.ProjectEditor;
+using File = GodotTools.Utils.File;
+using Directory = GodotTools.Utils.Directory;
+
+namespace GodotTools
+{
+    public static class CSharpProject
+    {
+        public static string GenerateGameProject(string dir, string name, IEnumerable<string> files = null)
+        {
+            try
+            {
+                return ProjectGenerator.GenGameProject(dir, name, files);
+            }
+            catch (Exception e)
+            {
+                GD.PushError(e.ToString());
+                return string.Empty;
+            }
+        }
+
+        public static void AddItem(string projectPath, string itemType, string include)
+        {
+            if (!(bool) Internal.GlobalDef("mono/project/auto_update_project", true))
+                return;
+
+            ProjectUtils.AddItemToProjectChecked(projectPath, itemType, include);
+        }
+
+        private static readonly DateTime Epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+
+        private static ulong ConvertToTimestamp(this DateTime value)
+        {
+            TimeSpan elapsedTime = value - Epoch;
+            return (ulong) elapsedTime.TotalSeconds;
+        }
+
+        public static void GenerateScriptsMetadata(string projectPath, string outputPath)
+        {
+            if (File.Exists(outputPath))
+                File.Delete(outputPath);
+
+            var oldDict = Internal.GetScriptsMetadataOrNothing();
+            var newDict = new Godot.Collections.Dictionary<string, object>();
+
+            foreach (var includeFile in ProjectUtils.GetIncludeFiles(projectPath, "Compile"))
+            {
+                string projectIncludeFile = ("res://" + includeFile).SimplifyGodotPath();
+
+                ulong modifiedTime = File.GetLastWriteTime(projectIncludeFile).ConvertToTimestamp();
+
+                if (oldDict.TryGetValue(projectIncludeFile, out var oldFileVar))
+                {
+                    var oldFileDict = (Dictionary) oldFileVar;
+
+                    if (ulong.TryParse((string) oldFileDict["modified_time"], out ulong storedModifiedTime))
+                    {
+                        if (storedModifiedTime == modifiedTime)
+                        {
+                            // No changes so no need to parse again
+                            newDict[projectIncludeFile] = oldFileDict;
+                            continue;
+                        }
+                    }
+                }
+
+                ScriptClassParser.ParseFileOrThrow(projectIncludeFile, out var classes);
+
+                string searchName = System.IO.Path.GetFileNameWithoutExtension(projectIncludeFile);
+
+                var classDict = new Dictionary();
+
+                foreach (var classDecl in classes)
+                {
+                    if (classDecl.BaseCount == 0)
+                        continue; // Does not inherit nor implement anything, so it can't be a script class
+
+                    string classCmp = classDecl.Nested ?
+                        classDecl.Name.Substring(classDecl.Name.LastIndexOf(".", StringComparison.Ordinal) + 1) :
+                        classDecl.Name;
+
+                    if (classCmp != searchName)
+                        continue;
+
+                    classDict["namespace"] = classDecl.Namespace;
+                    classDict["class_name"] = classDecl.Name;
+                    classDict["nested"] = classDecl.Nested;
+                    break;
+                }
+
+                if (classDict.Count == 0)
+                    continue; // Not found
+
+                newDict[projectIncludeFile] = new Dictionary {["modified_time"] = $"{modifiedTime}", ["class"] = classDict};
+            }
+
+            if (newDict.Count > 0)
+            {
+                string json = JSON.Print(newDict);
+
+                string baseDir = outputPath.GetBaseDir();
+
+                if (!Directory.Exists(baseDir))
+                    Directory.CreateDirectory(baseDir);
+
+                File.WriteAllText(outputPath, json);
+            }
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/GodotSharpBuilds.cs b/modules/mono/editor/GodotTools/GodotTools/GodotSharpBuilds.cs
new file mode 100644
index 0000000000..433a931941
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/GodotSharpBuilds.cs
@@ -0,0 +1,396 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using GodotTools.Build;
+using GodotTools.Internals;
+using GodotTools.Utils;
+using Error = Godot.Error;
+using File = GodotTools.Utils.File;
+using Directory = GodotTools.Utils.Directory;
+
+namespace GodotTools
+{
+    public static class GodotSharpBuilds
+    {
+        private static readonly List<MonoBuildInfo> BuildsInProgress = new List<MonoBuildInfo>();
+
+        public const string PropNameMsbuildMono = "MSBuild (Mono)";
+        public const string PropNameMsbuildVs = "MSBuild (VS Build Tools)";
+        public const string PropNameXbuild = "xbuild (Deprecated)";
+
+        public const string MsBuildIssuesFileName = "msbuild_issues.csv";
+        public const string MsBuildLogFileName = "msbuild_log.txt";
+
+        public enum BuildTool
+        {
+            MsBuildMono,
+            MsBuildVs,
+            XBuild // Deprecated
+        }
+
+        private static void RemoveOldIssuesFile(MonoBuildInfo buildInfo)
+        {
+            var issuesFile = GetIssuesFilePath(buildInfo);
+
+            if (!File.Exists(issuesFile))
+                return;
+
+            File.Delete(issuesFile);
+        }
+
+        private static string _ApiFolderName(ApiAssemblyType apiType)
+        {
+            ulong apiHash = apiType == ApiAssemblyType.Core ?
+                Internal.GetCoreApiHash() :
+                Internal.GetEditorApiHash();
+            return $"{apiHash}_{BindingsGenerator.Version}_{BindingsGenerator.CsGlueVersion}";
+        }
+
+        private static void ShowBuildErrorDialog(string message)
+        {
+            GodotSharpEditor.Instance.ShowErrorDialog(message, "Build error");
+            GodotSharpEditor.Instance.MonoBottomPanel.ShowBuildTab();
+        }
+
+        public static void RestartBuild(MonoBuildTab buildTab) => throw new NotImplementedException();
+        public static void StopBuild(MonoBuildTab buildTab) => throw new NotImplementedException();
+
+        private static string GetLogFilePath(MonoBuildInfo buildInfo)
+        {
+            return Path.Combine(buildInfo.LogsDirPath, MsBuildLogFileName);
+        }
+
+        private static string GetIssuesFilePath(MonoBuildInfo buildInfo)
+        {
+            return Path.Combine(Godot.ProjectSettings.LocalizePath(buildInfo.LogsDirPath), MsBuildIssuesFileName);
+        }
+
+        private static void PrintVerbose(string text)
+        {
+            if (Godot.OS.IsStdoutVerbose())
+                Godot.GD.Print(text);
+        }
+
+        public static bool Build(MonoBuildInfo buildInfo)
+        {
+            if (BuildsInProgress.Contains(buildInfo))
+                throw new InvalidOperationException("A build is already in progress");
+
+            BuildsInProgress.Add(buildInfo);
+
+            try
+            {
+                MonoBuildTab buildTab = GodotSharpEditor.Instance.MonoBottomPanel.GetBuildTabFor(buildInfo);
+                buildTab.OnBuildStart();
+
+                // Required in order to update the build tasks list
+                Internal.GodotMainIteration();
+
+                try
+                {
+                    RemoveOldIssuesFile(buildInfo);
+                }
+                catch (IOException e)
+                {
+                    buildTab.OnBuildExecFailed($"Cannot remove issues file: {GetIssuesFilePath(buildInfo)}");
+                    Console.Error.WriteLine(e);
+                }
+
+                try
+                {
+                    int exitCode = BuildSystem.Build(buildInfo);
+
+                    if (exitCode != 0)
+                        PrintVerbose($"MSBuild exited with code: {exitCode}. Log file: {GetLogFilePath(buildInfo)}");
+
+                    buildTab.OnBuildExit(exitCode == 0 ? MonoBuildTab.BuildResults.Success : MonoBuildTab.BuildResults.Error);
+
+                    return exitCode == 0;
+                }
+                catch (Exception e)
+                {
+                    buildTab.OnBuildExecFailed($"The build method threw an exception.\n{e.GetType().FullName}: {e.Message}");
+                    Console.Error.WriteLine(e);
+                    return false;
+                }
+            }
+            finally
+            {
+                BuildsInProgress.Remove(buildInfo);
+            }
+        }
+
+        public static async Task<bool> BuildAsync(MonoBuildInfo buildInfo)
+        {
+            if (BuildsInProgress.Contains(buildInfo))
+                throw new InvalidOperationException("A build is already in progress");
+
+            BuildsInProgress.Add(buildInfo);
+
+            try
+            {
+                MonoBuildTab buildTab = GodotSharpEditor.Instance.MonoBottomPanel.GetBuildTabFor(buildInfo);
+
+                try
+                {
+                    RemoveOldIssuesFile(buildInfo);
+                }
+                catch (IOException e)
+                {
+                    buildTab.OnBuildExecFailed($"Cannot remove issues file: {GetIssuesFilePath(buildInfo)}");
+                    Console.Error.WriteLine(e);
+                }
+
+                try
+                {
+                    int exitCode = await BuildSystem.BuildAsync(buildInfo);
+
+                    if (exitCode != 0)
+                        PrintVerbose($"MSBuild exited with code: {exitCode}. Log file: {GetLogFilePath(buildInfo)}");
+
+                    buildTab.OnBuildExit(exitCode == 0 ? MonoBuildTab.BuildResults.Success : MonoBuildTab.BuildResults.Error);
+
+                    return exitCode == 0;
+                }
+                catch (Exception e)
+                {
+                    buildTab.OnBuildExecFailed($"The build method threw an exception.\n{e.GetType().FullName}: {e.Message}");
+                    Console.Error.WriteLine(e);
+                    return false;
+                }
+            }
+            finally
+            {
+                BuildsInProgress.Remove(buildInfo);
+            }
+        }
+
+        public static bool BuildApiSolution(string apiSlnDir, string config)
+        {
+            string apiSlnFile = Path.Combine(apiSlnDir, $"{ApiAssemblyNames.SolutionName}.sln");
+
+            string coreApiAssemblyDir = Path.Combine(apiSlnDir, ApiAssemblyNames.Core, "bin", config);
+            string coreApiAssemblyFile = Path.Combine(coreApiAssemblyDir, $"{ApiAssemblyNames.Core}.dll");
+
+            string editorApiAssemblyDir = Path.Combine(apiSlnDir, ApiAssemblyNames.Editor, "bin", config);
+            string editorApiAssemblyFile = Path.Combine(editorApiAssemblyDir, $"{ApiAssemblyNames.Editor}.dll");
+
+            if (File.Exists(coreApiAssemblyFile) && File.Exists(editorApiAssemblyFile))
+                return true; // The assemblies are in the output folder; assume the solution is already built
+
+            var apiBuildInfo = new MonoBuildInfo(apiSlnFile, config);
+
+            // TODO Replace this global NoWarn with '#pragma warning' directives on generated files,
+            // once we start to actively document manually maintained C# classes
+            apiBuildInfo.CustomProperties.Add("NoWarn=1591"); // Ignore missing documentation warnings
+
+            if (Build(apiBuildInfo))
+                return true;
+
+            ShowBuildErrorDialog($"Failed to build {ApiAssemblyNames.SolutionName} solution.");
+            return false;
+        }
+
+        private static bool CopyApiAssembly(string srcDir, string dstDir, string assemblyName, ApiAssemblyType apiType)
+        {
+            // Create destination directory if needed
+            if (!Directory.Exists(dstDir))
+            {
+                try
+                {
+                    Directory.CreateDirectory(dstDir);
+                }
+                catch (IOException e)
+                {
+                    ShowBuildErrorDialog($"Failed to create destination directory for the API assemblies. Exception message: {e.Message}");
+                    return false;
+                }
+            }
+
+            string assemblyFile = assemblyName + ".dll";
+            string assemblySrc = Path.Combine(srcDir, assemblyFile);
+            string assemblyDst = Path.Combine(dstDir, assemblyFile);
+
+            if (!File.Exists(assemblyDst) || File.GetLastWriteTime(assemblySrc) > File.GetLastWriteTime(assemblyDst) ||
+                Internal.MetadataIsApiAssemblyInvalidated(apiType))
+            {
+                string xmlFile = $"{assemblyName}.xml";
+                string pdbFile = $"{assemblyName}.pdb";
+
+                try
+                {
+                    File.Copy(Path.Combine(srcDir, xmlFile), Path.Combine(dstDir, xmlFile));
+                }
+                catch (IOException e)
+                {
+                    Godot.GD.PushWarning(e.ToString());
+                }
+
+                try
+                {
+                    File.Copy(Path.Combine(srcDir, pdbFile), Path.Combine(dstDir, pdbFile));
+                }
+                catch (IOException e)
+                {
+                    Godot.GD.PushWarning(e.ToString());
+                }
+
+                try
+                {
+                    File.Copy(assemblySrc, assemblyDst);
+                }
+                catch (IOException e)
+                {
+                    ShowBuildErrorDialog($"Failed to copy {assemblyFile}. Exception message: {e.Message}");
+                    return false;
+                }
+
+                Internal.MetadataSetApiAssemblyInvalidated(apiType, false);
+            }
+
+            return true;
+        }
+
+        public static bool MakeApiAssembly(ApiAssemblyType apiType, string config)
+        {
+            string apiName = apiType == ApiAssemblyType.Core ? ApiAssemblyNames.Core : ApiAssemblyNames.Editor;
+
+            string editorPrebuiltApiDir = Path.Combine(GodotSharpDirs.DataEditorPrebuiltApiDir, config);
+            string resAssembliesDir = Path.Combine(GodotSharpDirs.ResAssembliesBaseDir, config);
+
+            if (File.Exists(Path.Combine(editorPrebuiltApiDir, $"{apiName}.dll")))
+            {
+                using (var copyProgress = new EditorProgress("mono_copy_prebuilt_api_assembly", $"Copying prebuilt {apiName} assembly...", 1))
+                {
+                    copyProgress.Step($"Copying {apiName} assembly", 0);
+                    return CopyApiAssembly(editorPrebuiltApiDir, resAssembliesDir, apiName, apiType);
+                }
+            }
+
+            const string apiSolutionName = ApiAssemblyNames.SolutionName;
+
+            using (var pr = new EditorProgress($"mono_build_release_{apiSolutionName}", $"Building {apiSolutionName} solution...", 3))
+            {
+                pr.Step($"Generating {apiSolutionName} solution", 0);
+
+                string apiSlnDir = Path.Combine(GodotSharpDirs.MonoSolutionsDir, _ApiFolderName(ApiAssemblyType.Core));
+                string apiSlnFile = Path.Combine(apiSlnDir, $"{apiSolutionName}.sln");
+
+                if (!Directory.Exists(apiSlnDir) || !File.Exists(apiSlnFile))
+                {
+                    var bindingsGenerator = new BindingsGenerator();
+
+                    if (!Godot.OS.IsStdoutVerbose())
+                        bindingsGenerator.LogPrintEnabled = false;
+
+                    Error err = bindingsGenerator.GenerateCsApi(apiSlnDir);
+                    if (err != Error.Ok)
+                    {
+                        ShowBuildErrorDialog($"Failed to generate {apiSolutionName} solution. Error: {err}");
+                        return false;
+                    }
+                }
+
+                pr.Step($"Building {apiSolutionName} solution", 1);
+
+                if (!BuildApiSolution(apiSlnDir, config))
+                    return false;
+
+                pr.Step($"Copying {apiName} assembly", 2);
+
+                // Copy the built assembly to the assemblies directory
+                string apiAssemblyDir = Path.Combine(apiSlnDir, apiName, "bin", config);
+                if (!CopyApiAssembly(apiAssemblyDir, resAssembliesDir, apiName, apiType))
+                    return false;
+            }
+
+            return true;
+        }
+
+        public static bool BuildProjectBlocking(string config, IEnumerable<string> godotDefines)
+        {
+            if (!File.Exists(GodotSharpDirs.ProjectSlnPath))
+                return true; // No solution to build
+
+            string apiConfig = config == "Release" ? "Release" : "Debug";
+
+            if (!MakeApiAssembly(ApiAssemblyType.Core, apiConfig))
+                return false;
+
+            if (!MakeApiAssembly(ApiAssemblyType.Editor, apiConfig))
+                return false;
+
+            using (var pr = new EditorProgress("mono_project_debug_build", "Building project solution...", 1))
+            {
+                pr.Step("Building project solution", 0);
+
+                var buildInfo = new MonoBuildInfo(GodotSharpDirs.ProjectSlnPath, config);
+
+                // Add Godot defines
+                string constants = OS.IsWindows() ? "GodotDefineConstants=\"" : "GodotDefineConstants=\\\"";
+
+                foreach (var godotDefine in godotDefines)
+                    constants += $"GODOT_{godotDefine.ToUpper().Replace("-", "_").Replace(" ", "_").Replace(";", "_")};";
+
+                if (Internal.GodotIsRealTDouble())
+                    constants += "GODOT_REAL_T_IS_DOUBLE;";
+
+                constants += OS.IsWindows() ? "\"" : "\\\"";
+
+                buildInfo.CustomProperties.Add(constants);
+
+                if (!Build(buildInfo))
+                {
+                    ShowBuildErrorDialog("Failed to build project solution");
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        public static bool EditorBuildCallback()
+        {
+            if (!File.Exists(GodotSharpDirs.ProjectSlnPath))
+                return true; // No solution to build
+
+            string editorScriptsMetadataPath = Path.Combine(GodotSharpDirs.ResMetadataDir, "scripts_metadata.editor");
+            string playerScriptsMetadataPath = Path.Combine(GodotSharpDirs.ResMetadataDir, "scripts_metadata.editor_player");
+
+            CSharpProject.GenerateScriptsMetadata(GodotSharpDirs.ProjectCsProjPath, editorScriptsMetadataPath);
+
+            if (File.Exists(editorScriptsMetadataPath))
+                File.Copy(editorScriptsMetadataPath, playerScriptsMetadataPath);
+
+            var godotDefines = new[]
+            {
+                Godot.OS.GetName(),
+                Internal.GodotIs32Bits() ? "32" : "64"
+            };
+
+            return BuildProjectBlocking("Tools", godotDefines);
+        }
+
+        public static void Initialize()
+        {
+            // Build tool settings
+
+            Internal.EditorDef("mono/builds/build_tool", OS.IsWindows() ? BuildTool.MsBuildVs : BuildTool.MsBuildMono);
+
+            var editorSettings = GodotSharpEditor.Instance.GetEditorInterface().GetEditorSettings();
+
+            editorSettings.AddPropertyInfo(new Godot.Collections.Dictionary
+            {
+                ["type"] = Godot.Variant.Type.Int,
+                ["name"] = "mono/builds/build_tool",
+                ["hint"] = Godot.PropertyHint.Enum,
+                ["hint_string"] = OS.IsWindows() ?
+                    $"{PropNameMsbuildMono},{PropNameMsbuildVs},{PropNameXbuild}" :
+                    $"{PropNameMsbuildMono},{PropNameXbuild}"
+            });
+
+            Internal.EditorDef("mono/builds/print_build_output", false);
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs b/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs
new file mode 100644
index 0000000000..955574d5fe
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs
@@ -0,0 +1,538 @@
+using Godot;
+using GodotTools.Utils;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using GodotTools.Internals;
+using GodotTools.ProjectEditor;
+using File = GodotTools.Utils.File;
+using Path = System.IO.Path;
+using OS = GodotTools.Utils.OS;
+
+namespace GodotTools
+{
+    public class GodotSharpEditor : EditorPlugin, ISerializationListener
+    {
+        private EditorSettings editorSettings;
+
+        private PopupMenu menuPopup;
+
+        private AcceptDialog errorDialog;
+        private AcceptDialog aboutDialog;
+        private CheckBox aboutDialogCheckBox;
+
+        private ToolButton bottomPanelBtn;
+
+        private MonoDevelopInstance monoDevelopInstance;
+        private MonoDevelopInstance visualStudioForMacInstance;
+
+        public MonoBottomPanel MonoBottomPanel { get; private set; }
+
+        private bool CreateProjectSolution()
+        {
+            using (var pr = new EditorProgress("create_csharp_solution", "Generating solution...", 2)) // TTR("Generating solution...")
+            {
+                pr.Step("Generating C# project..."); // TTR("Generating C# project...")
+
+                string resourceDir = ProjectSettings.GlobalizePath("res://");
+
+                string path = resourceDir;
+                string name = (string) ProjectSettings.GetSetting("application/config/name");
+                if (name.Empty())
+                    name = "UnnamedProject";
+
+                string guid = CSharpProject.GenerateGameProject(path, name);
+
+                if (guid.Length > 0)
+                {
+                    var solution = new DotNetSolution(name)
+                    {
+                        DirectoryPath = path
+                    };
+
+                    var projectInfo = new DotNetSolution.ProjectInfo
+                    {
+                        Guid = guid,
+                        PathRelativeToSolution = name + ".csproj",
+                        Configs = new List<string> {"Debug", "Release", "Tools"}
+                    };
+
+                    solution.AddNewProject(name, projectInfo);
+
+                    try
+                    {
+                        solution.Save();
+                    }
+                    catch (IOException e)
+                    {
+                        ShowErrorDialog($"Failed to save solution. Exception message: {e.Message}"); // TTR
+                        return false;
+                    }
+
+                    string apiConfig = "Debug";
+
+                    if (!GodotSharpBuilds.MakeApiAssembly(ApiAssemblyType.Core, apiConfig))
+                        return false;
+
+                    if (!GodotSharpBuilds.MakeApiAssembly(ApiAssemblyType.Editor, apiConfig))
+                        return false;
+
+                    pr.Step("Done"); // TTR("Done")
+
+                    // Here, after all calls to progress_task_step
+                    CallDeferred(nameof(_RemoveCreateSlnMenuOption));
+                }
+                else
+                {
+                    ShowErrorDialog("Failed to create C# project."); // TTR
+                }
+
+                return true;
+            }
+        }
+
+        private static int _makeApiSolutionsAttempts = 100;
+        private static bool _makeApiSolutionsRecursionGuard = false;
+
+        private void _MakeApiSolutionsIfNeeded()
+        {
+            // I'm sick entirely of ProgressDialog
+
+            if (Internal.IsMessageQueueFlushing() || Engine.GetMainLoop() == null)
+            {
+                if (_makeApiSolutionsAttempts == 0) // This better never happen or I swear...
+                    throw new TimeoutException();
+
+                if (Engine.GetMainLoop() != null)
+                {
+                    if (!Engine.GetMainLoop().IsConnected("idle_frame", this, nameof(_MakeApiSolutionsIfNeeded)))
+                        Engine.GetMainLoop().Connect("idle_frame", this, nameof(_MakeApiSolutionsIfNeeded));
+                }
+                else
+                {
+                    CallDeferred(nameof(_MakeApiSolutionsIfNeededImpl));
+                }
+
+                _makeApiSolutionsAttempts--;
+                return;
+            }
+
+            // Recursion guard needed because signals don't play well with ProgressDialog either, but unlike
+            // the message queue, with signals the collateral damage should be minimal in the worst case.
+            if (!_makeApiSolutionsRecursionGuard)
+            {
+                _makeApiSolutionsRecursionGuard = true;
+
+                // Oneshot signals don't play well with ProgressDialog either, so we do it this way instead
+                if (Engine.GetMainLoop().IsConnected("idle_frame", this, nameof(_MakeApiSolutionsIfNeeded)))
+                    Engine.GetMainLoop().Disconnect("idle_frame", this, nameof(_MakeApiSolutionsIfNeeded));
+
+                _MakeApiSolutionsIfNeededImpl();
+
+                _makeApiSolutionsRecursionGuard = false;
+            }
+        }
+
+        private void _MakeApiSolutionsIfNeededImpl()
+        {
+            // If the project has a solution and C# project make sure the API assemblies are present and up to date
+
+            string api_config = "Debug";
+            string resAssembliesDir = Path.Combine(GodotSharpDirs.ResAssembliesBaseDir, api_config);
+
+            if (!File.Exists(Path.Combine(resAssembliesDir, $"{ApiAssemblyNames.Core}.dll")) ||
+                Internal.MetadataIsApiAssemblyInvalidated(ApiAssemblyType.Core))
+            {
+                if (!GodotSharpBuilds.MakeApiAssembly(ApiAssemblyType.Core, api_config))
+                    return;
+            }
+
+            if (!File.Exists(Path.Combine(resAssembliesDir, $"{ApiAssemblyNames.Editor}.dll")) ||
+                Internal.MetadataIsApiAssemblyInvalidated(ApiAssemblyType.Editor))
+            {
+                if (!GodotSharpBuilds.MakeApiAssembly(ApiAssemblyType.Editor, api_config))
+                    return; // Redundant? I don't think so!
+            }
+        }
+
+        private void _RemoveCreateSlnMenuOption()
+        {
+            menuPopup.RemoveItem(menuPopup.GetItemIndex((int) MenuOptions.CreateSln));
+            bottomPanelBtn.Show();
+        }
+
+        private void _ShowAboutDialog()
+        {
+            bool showOnStart = (bool) editorSettings.GetSetting("mono/editor/show_info_on_start");
+            aboutDialogCheckBox.Pressed = showOnStart;
+            aboutDialog.PopupCenteredMinsize();
+        }
+
+        private void _ToggleAboutDialogOnStart(bool enabled)
+        {
+            bool showOnStart = (bool) editorSettings.GetSetting("mono/editor/show_info_on_start");
+            if (showOnStart != enabled)
+                editorSettings.SetSetting("mono/editor/show_info_on_start", enabled);
+        }
+
+        private void _MenuOptionPressed(MenuOptions id)
+        {
+            switch (id)
+            {
+                case MenuOptions.CreateSln:
+                    CreateProjectSolution();
+                    break;
+                case MenuOptions.AboutCSharp:
+                    _ShowAboutDialog();
+                    break;
+                default:
+                    throw new ArgumentOutOfRangeException(nameof(id), id, "Invalid menu option");
+            }
+        }
+
+        private void _BuildSolutionPressed()
+        {
+            if (!File.Exists(GodotSharpDirs.ProjectSlnPath))
+            {
+                if (!CreateProjectSolution())
+                    return; // Failed to create solution
+            }
+
+            Instance.MonoBottomPanel.BuildProjectPressed();
+        }
+
+        public override void _Notification(int what)
+        {
+            base._Notification(what);
+
+            if (what == NotificationReady)
+            {
+                bool showInfoDialog = (bool) editorSettings.GetSetting("mono/editor/show_info_on_start");
+                if (showInfoDialog)
+                {
+                    aboutDialog.PopupExclusive = true;
+                    _ShowAboutDialog();
+                    // Once shown a first time, it can be seen again via the Mono menu - it doesn't have to be exclusive from that time on.
+                    aboutDialog.PopupExclusive = false;
+                }
+            }
+        }
+
+        public enum MenuOptions
+        {
+            CreateSln,
+            AboutCSharp,
+        }
+
+        public enum ExternalEditor
+        {
+            None,
+            VisualStudio, // TODO (Windows-only)
+            VisualStudioForMac, // Mac-only
+            MonoDevelop,
+            VsCode
+        }
+
+        public void ShowErrorDialog(string message, string title = "Error")
+        {
+            errorDialog.WindowTitle = title;
+            errorDialog.DialogText = message;
+            errorDialog.PopupCenteredMinsize();
+        }
+
+        private static string _vsCodePath = string.Empty;
+
+        private static readonly string[] VsCodeNames =
+        {
+            "code", "code-oss", "vscode", "vscode-oss", "visual-studio-code", "visual-studio-code-oss"
+        };
+
+        public Error OpenInExternalEditor(Script script, int line, int col)
+        {
+            var editor = (ExternalEditor) editorSettings.GetSetting("mono/editor/external_editor");
+
+            switch (editor)
+            {
+                case ExternalEditor.VsCode:
+                {
+                    if (_vsCodePath.Empty() || !File.Exists(_vsCodePath))
+                    {
+                        // Try to search it again if it wasn't found last time or if it was removed from its location
+                        _vsCodePath = VsCodeNames.SelectFirstNotNull(OS.PathWhich, orElse: string.Empty);
+                    }
+
+                    var args = new List<string>();
+
+                    bool osxAppBundleInstalled = false;
+
+                    if (OS.IsOSX())
+                    {
+                        // The package path is '/Applications/Visual Studio Code.app'
+                        const string vscodeBundleId = "com.microsoft.VSCode";
+
+                        osxAppBundleInstalled = Internal.IsOsxAppBundleInstalled(vscodeBundleId);
+
+                        if (osxAppBundleInstalled)
+                        {
+                            args.Add("-b");
+                            args.Add(vscodeBundleId);
+
+                            // The reusing of existing windows made by the 'open' command might not choose a wubdiw that is
+                            // editing our folder. It's better to ask for a new window and let VSCode do the window management.
+                            args.Add("-n");
+
+                            // The open process must wait until the application finishes (which is instant in VSCode's case)
+                            args.Add("--wait-apps");
+
+                            args.Add("--args");
+                        }
+                    }
+
+                    var resourcePath = ProjectSettings.GlobalizePath("res://");
+                    args.Add(resourcePath);
+
+                    string scriptPath = ProjectSettings.GlobalizePath(script.ResourcePath);
+
+                    if (line >= 0)
+                    {
+                        args.Add("-g");
+                        args.Add($"{scriptPath}:{line + 1}:{col}");
+                    }
+                    else
+                    {
+                        args.Add(scriptPath);
+                    }
+
+                    string command;
+
+                    if (OS.IsOSX())
+                    {
+                        if (!osxAppBundleInstalled && _vsCodePath.Empty())
+                        {
+                            GD.PushError("Cannot find code editor: VSCode");
+                            return Error.FileNotFound;
+                        }
+
+                        command = osxAppBundleInstalled ? "/usr/bin/open" : _vsCodePath;
+                    }
+                    else
+                    {
+                        if (_vsCodePath.Empty())
+                        {
+                            GD.PushError("Cannot find code editor: VSCode");
+                            return Error.FileNotFound;
+                        }
+
+                        command = _vsCodePath;
+                    }
+
+                    try
+                    {
+                        OS.RunProcess(command, args);
+                    }
+                    catch (Exception e)
+                    {
+                        GD.PushError($"Error when trying to run code editor: VSCode. Exception message: '{e.Message}'");
+                    }
+
+                    break;
+                }
+
+                case ExternalEditor.VisualStudioForMac:
+                    goto case ExternalEditor.MonoDevelop;
+                case ExternalEditor.MonoDevelop:
+                {
+                    MonoDevelopInstance GetMonoDevelopInstance(string solutionPath)
+                    {
+                        if (OS.IsOSX() && editor == ExternalEditor.VisualStudioForMac)
+                        {
+                            if (visualStudioForMacInstance == null)
+                                visualStudioForMacInstance = new MonoDevelopInstance(solutionPath, MonoDevelopInstance.EditorId.VisualStudioForMac);
+
+                            return visualStudioForMacInstance;
+                        }
+
+                        if (monoDevelopInstance == null)
+                            monoDevelopInstance = new MonoDevelopInstance(solutionPath, MonoDevelopInstance.EditorId.MonoDevelop);
+
+                        return monoDevelopInstance;
+                    }
+
+                    string scriptPath = ProjectSettings.GlobalizePath(script.ResourcePath);
+
+                    if (line >= 0)
+                        scriptPath += $";{line + 1};{col}";
+
+                    GetMonoDevelopInstance(GodotSharpDirs.ProjectSlnPath).Execute(scriptPath);
+
+                    break;
+                }
+
+                case ExternalEditor.None:
+                    return Error.Unavailable;
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+
+            return Error.Ok;
+        }
+
+        public bool OverridesExternalEditor()
+        {
+            return (ExternalEditor) editorSettings.GetSetting("mono/editor/external_editor") != ExternalEditor.None;
+        }
+
+        public override bool Build()
+        {
+            return GodotSharpBuilds.EditorBuildCallback();
+        }
+
+        public override void EnablePlugin()
+        {
+            base.EnablePlugin();
+
+            if (Instance != null)
+                throw new InvalidOperationException();
+            Instance = this;
+
+            var editorInterface = GetEditorInterface();
+            var editorBaseControl = editorInterface.GetBaseControl();
+
+            editorSettings = editorInterface.GetEditorSettings();
+
+            errorDialog = new AcceptDialog();
+            editorBaseControl.AddChild(errorDialog);
+
+            MonoBottomPanel = new MonoBottomPanel();
+
+            bottomPanelBtn = AddControlToBottomPanel(MonoBottomPanel, "Mono"); // TTR("Mono")
+
+            AddChild(new HotReloadAssemblyWatcher {Name = "HotReloadAssemblyWatcher"});
+
+            menuPopup = new PopupMenu();
+            menuPopup.Hide();
+            menuPopup.SetAsToplevel(true);
+
+            AddToolSubmenuItem("Mono", menuPopup);
+
+            // TODO: Remove or edit this info dialog once Mono support is no longer in alpha
+            {
+                menuPopup.AddItem("About C# support", (int) MenuOptions.AboutCSharp); // TTR("About C# support")
+                aboutDialog = new AcceptDialog();
+                editorBaseControl.AddChild(aboutDialog);
+                aboutDialog.WindowTitle = "Important: C# support is not feature-complete";
+
+                // We don't use DialogText as the default AcceptDialog Label doesn't play well with the TextureRect and CheckBox
+                // we'll add. Instead we add containers and a new autowrapped Label inside.
+
+                // Main VBoxContainer (icon + label on top, checkbox at bottom)
+                var aboutVBox = new VBoxContainer();
+                aboutDialog.AddChild(aboutVBox);
+
+                // HBoxContainer for icon + label
+                var aboutHBox = new HBoxContainer();
+                aboutVBox.AddChild(aboutHBox);
+
+                var aboutIcon = new TextureRect();
+                aboutIcon.Texture = aboutIcon.GetIcon("NodeWarning", "EditorIcons");
+                aboutHBox.AddChild(aboutIcon);
+
+                var aboutLabel = new Label();
+                aboutHBox.AddChild(aboutLabel);
+                aboutLabel.RectMinSize = new Vector2(600, 150) * Internal.EditorScale;
+                aboutLabel.SizeFlagsVertical = (int) Control.SizeFlags.ExpandFill;
+                aboutLabel.Autowrap = true;
+                aboutLabel.Text =
+                    "C# support in Godot Engine is in late alpha stage and, while already usable, " +
+                    "it is not meant for use in production.\n\n" +
+                    "Projects can be exported to Linux, macOS and Windows, but not yet to mobile or web platforms. " +
+                    "Bugs and usability issues will be addressed gradually over future releases, " +
+                    "potentially including compatibility breaking changes as new features are implemented for a better overall C# experience.\n\n" +
+                    "If you experience issues with this Mono build, please report them on Godot's issue tracker with details about your system, MSBuild version, IDE, etc.:\n\n" +
+                    "        https://github.com/godotengine/godot/issues\n\n" +
+                    "Your critical feedback at this stage will play a great role in shaping the C# support in future releases, so thank you!";
+
+                Internal.EditorDef("mono/editor/show_info_on_start", true);
+
+                // CheckBox in main container
+                aboutDialogCheckBox = new CheckBox {Text = "Show this warning when starting the editor"};
+                aboutDialogCheckBox.Connect("toggled", this, nameof(_ToggleAboutDialogOnStart));
+                aboutVBox.AddChild(aboutDialogCheckBox);
+            }
+
+            if (File.Exists(GodotSharpDirs.ProjectSlnPath) && File.Exists(GodotSharpDirs.ProjectCsProjPath))
+            {
+                // Defer this task because EditorProgress calls Main::iterarion() and the main loop is not yet initialized.
+                CallDeferred(nameof(_MakeApiSolutionsIfNeeded));
+            }
+            else
+            {
+                bottomPanelBtn.Hide();
+                menuPopup.AddItem("Create C# solution", (int) MenuOptions.CreateSln); // TTR("Create C# solution")
+            }
+
+            menuPopup.Connect("id_pressed", this, nameof(_MenuOptionPressed));
+
+            var buildButton = new ToolButton
+            {
+                Text = "Build",
+                HintTooltip = "Build solution",
+                FocusMode = Control.FocusModeEnum.None
+            };
+            buildButton.Connect("pressed", this, nameof(_BuildSolutionPressed));
+            AddControlToContainer(CustomControlContainer.Toolbar, buildButton);
+
+            // External editor settings
+            Internal.EditorDef("mono/editor/external_editor", ExternalEditor.None);
+
+            string settingsHintStr = "Disabled";
+
+            if (OS.IsWindows())
+            {
+                settingsHintStr += $",MonoDevelop:{(int) ExternalEditor.MonoDevelop}" +
+                                   $",Visual Studio Code:{(int) ExternalEditor.VsCode}";
+            }
+            else if (OS.IsOSX())
+            {
+                settingsHintStr += $",Visual Studio:{(int) ExternalEditor.VisualStudioForMac}" +
+                                   $",MonoDevelop:{(int) ExternalEditor.MonoDevelop}" +
+                                   $",Visual Studio Code:{(int) ExternalEditor.VsCode}";
+            }
+            else if (OS.IsUnix())
+            {
+                settingsHintStr += $",MonoDevelop:{(int) ExternalEditor.MonoDevelop}" +
+                                   $",Visual Studio Code:{(int) ExternalEditor.VsCode}";
+            }
+
+            editorSettings.AddPropertyInfo(new Godot.Collections.Dictionary
+            {
+                ["type"] = Variant.Type.Int,
+                ["name"] = "mono/editor/external_editor",
+                ["hint"] = PropertyHint.Enum,
+                ["hint_string"] = settingsHintStr
+            });
+
+            // Export plugin
+            AddExportPlugin(new GodotSharpExport());
+
+            GodotSharpBuilds.Initialize();
+        }
+
+        public void OnBeforeSerialize()
+        {
+        }
+
+        public void OnAfterDeserialize()
+        {
+            Instance = this;
+        }
+
+        // Singleton
+
+        public static GodotSharpEditor Instance { get; private set; }
+
+        private GodotSharpEditor()
+        {
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/GodotSharpExport.cs b/modules/mono/editor/GodotTools/GodotTools/GodotSharpExport.cs
new file mode 100644
index 0000000000..b80fe1fab7
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/GodotSharpExport.cs
@@ -0,0 +1,197 @@
+using Godot;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using GodotTools.Core;
+using GodotTools.Internals;
+using Directory = GodotTools.Utils.Directory;
+using File = GodotTools.Utils.File;
+using Path = System.IO.Path;
+
+namespace GodotTools
+{
+    public class GodotSharpExport : EditorExportPlugin
+    {
+        private void AddFile(string srcPath, string dstPath, bool remap = false)
+        {
+            AddFile(dstPath, File.ReadAllBytes(srcPath), remap);
+        }
+
+        public override void _ExportFile(string path, string type, string[] features)
+        {
+            base._ExportFile(path, type, features);
+
+            if (type != Internal.CSharpLanguageType)
+                return;
+
+            if (Path.GetExtension(path) != $".{Internal.CSharpLanguageExtension}")
+                throw new ArgumentException($"Resource of type {Internal.CSharpLanguageType} has an invalid file extension: {path}", nameof(path));
+
+            // TODO What if the source file is not part of the game's C# project
+
+            bool includeScriptsContent = (bool) ProjectSettings.GetSetting("mono/export/include_scripts_content");
+
+            if (!includeScriptsContent)
+            {
+                // We don't want to include the source code on exported games
+                AddFile(path, new byte[] { }, remap: false);
+                Skip();
+            }
+        }
+
+        public override void _ExportBegin(string[] features, bool isDebug, string path, int flags)
+        {
+            base._ExportBegin(features, isDebug, path, flags);
+
+            try
+            {
+                _ExportBeginImpl(features, isDebug, path, flags);
+            }
+            catch (Exception e)
+            {
+                GD.PushError($"Failed to export project. Exception message: {e.Message}");
+                Console.Error.WriteLine(e);
+            }
+        }
+
+        public void _ExportBeginImpl(string[] features, bool isDebug, string path, int flags)
+        {
+            // TODO Right now there is no way to stop the export process with an error
+
+            if (File.Exists(GodotSharpDirs.ProjectSlnPath))
+            {
+                string buildConfig = isDebug ? "Debug" : "Release";
+
+                string scriptsMetadataPath = Path.Combine(GodotSharpDirs.ResMetadataDir, $"scripts_metadata.{(isDebug ? "debug" : "release")}");
+                CSharpProject.GenerateScriptsMetadata(GodotSharpDirs.ProjectCsProjPath, scriptsMetadataPath);
+
+                AddFile(scriptsMetadataPath, scriptsMetadataPath);
+
+                // Turn export features into defines
+                var godotDefines = features;
+
+                if (!GodotSharpBuilds.BuildProjectBlocking(buildConfig, godotDefines))
+                {
+                    GD.PushError("Failed to build project");
+                    return;
+                }
+
+                // Add dependency assemblies
+
+                var dependencies = new Godot.Collections.Dictionary<string, string>();
+
+                var projectDllName = (string) ProjectSettings.GetSetting("application/config/name");
+                if (projectDllName.Empty())
+                {
+                    projectDllName = "UnnamedProject";
+                }
+
+                string projectDllSrcDir = Path.Combine(GodotSharpDirs.ResTempAssembliesBaseDir, buildConfig);
+                string projectDllSrcPath = Path.Combine(projectDllSrcDir, $"{projectDllName}.dll");
+
+                dependencies[projectDllName] = projectDllSrcPath;
+
+                {
+                    string templatesDir = Internal.FullTemplatesDir;
+                    string androidBclDir = Path.Combine(templatesDir, "android-bcl");
+
+                    string customLibDir = features.Contains("Android") && Directory.Exists(androidBclDir) ? androidBclDir : string.Empty;
+
+                    GetExportedAssemblyDependencies(projectDllName, projectDllSrcPath, buildConfig, customLibDir, dependencies);
+                }
+
+                string apiConfig = isDebug ? "Debug" : "Release";
+                string resAssembliesDir = Path.Combine(GodotSharpDirs.ResAssembliesBaseDir, apiConfig);
+
+                foreach (var dependency in dependencies)
+                {
+                    string dependSrcPath = dependency.Value;
+                    string dependDstPath = Path.Combine(resAssembliesDir, dependSrcPath.GetFile());
+                    AddFile(dependSrcPath, dependDstPath);
+                }
+            }
+
+            // Mono specific export template extras (data dir)
+            ExportDataDirectory(features, isDebug, path);
+        }
+
+        private static void ExportDataDirectory(IEnumerable<string> features, bool debug, string path)
+        {
+            var featureSet = new HashSet<string>(features);
+
+            if (!PlatformHasTemplateDir(featureSet))
+                return;
+
+            string templateDirName = "data.mono";
+
+            if (featureSet.Contains("Windows"))
+            {
+                templateDirName += ".windows";
+                templateDirName += featureSet.Contains("64") ? ".64" : ".32";
+            }
+            else if (featureSet.Contains("X11"))
+            {
+                templateDirName += ".x11";
+                templateDirName += featureSet.Contains("64") ? ".64" : ".32";
+            }
+            else
+            {
+                throw new NotSupportedException("Target platform not supported");
+            }
+
+            templateDirName += debug ? ".release_debug" : ".release";
+
+            string templateDirPath = Path.Combine(Internal.FullTemplatesDir, templateDirName);
+
+            if (!Directory.Exists(templateDirPath))
+                throw new FileNotFoundException("Data template directory not found");
+
+            string outputDir = new FileInfo(path).Directory?.FullName ??
+                               throw new FileNotFoundException("Base directory not found");
+
+            string outputDataDir = Path.Combine(outputDir, DataDirName);
+
+            if (Directory.Exists(outputDataDir))
+                Directory.Delete(outputDataDir, recursive: true); // Clean first
+
+            Directory.CreateDirectory(outputDataDir);
+
+            foreach (string dir in Directory.GetDirectories(templateDirPath, "*", SearchOption.AllDirectories))
+            {
+                Directory.CreateDirectory(Path.Combine(outputDataDir, dir.Substring(templateDirPath.Length + 1)));
+            }
+
+            foreach (string file in Directory.GetFiles(templateDirPath, "*", SearchOption.AllDirectories))
+            {
+                File.Copy(file, Path.Combine(outputDataDir, file.Substring(templateDirPath.Length + 1)));
+            }
+        }
+
+        private static bool PlatformHasTemplateDir(IEnumerable<string> featureSet)
+        {
+            // OSX export templates are contained in a zip, so we place
+            // our custom template inside it and let Godot do the rest.
+            return !featureSet.Any(f => new[] {"OSX", "Android"}.Contains(f));
+        }
+
+        private static string DataDirName
+        {
+            get
+            {
+                var appName = (string) ProjectSettings.GetSetting("application/config/name");
+                string appNameSafe = appName.ToSafeDirName(allowDirSeparator: false);
+                return $"data_{appNameSafe}";
+            }
+        }
+
+        private static void GetExportedAssemblyDependencies(string projectDllName, string projectDllSrcPath,
+            string buildConfig, string customLibDir, Godot.Collections.Dictionary<string, string> dependencies) =>
+            internal_GetExportedAssemblyDependencies(projectDllName, projectDllSrcPath, buildConfig, customLibDir, dependencies);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_GetExportedAssemblyDependencies(string projectDllName, string projectDllSrcPath,
+            string buildConfig, string customLibDir, Godot.Collections.Dictionary<string, string> dependencies);
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj b/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj
new file mode 100644
index 0000000000..a0ff8a0df1
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{27B00618-A6F2-4828-B922-05CAEB08C286}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <RootNamespace>GodotTools</RootNamespace>
+    <AssemblyName>GodotTools</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <GodotSourceRootPath>$(SolutionDir)/../../../../</GodotSourceRootPath>
+    <GodotApiConfiguration>Debug</GodotApiConfiguration>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>portable</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ConsolePause>false</ConsolePause>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="GodotSharp">
+      <HintPath>$(GodotSourceRootPath)/bin/GodotSharp/Api/$(GodotApiConfiguration)/GodotSharp.dll</HintPath>
+    </Reference>
+    <Reference Include="GodotSharpEditor">
+      <HintPath>$(GodotSourceRootPath)/bin/GodotSharp/Api/$(GodotApiConfiguration)/GodotSharpEditor.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Build\MsBuildFinder.cs" />
+    <Compile Include="Internals\BindingsGenerator.cs" />
+    <Compile Include="Internals\EditorProgress.cs" />
+    <Compile Include="Internals\GodotSharpDirs.cs" />
+    <Compile Include="Internals\Internal.cs" />
+    <Compile Include="Internals\ScriptClassParser.cs" />
+    <Compile Include="MonoDevelopInstance.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Build\BuildSystem.cs" />
+    <Compile Include="Utils\Directory.cs" />
+    <Compile Include="Utils\File.cs" />
+    <Compile Include="Utils\OS.cs" />
+    <Compile Include="GodotSharpEditor.cs" />
+    <Compile Include="GodotSharpBuilds.cs" />
+    <Compile Include="HotReloadAssemblyWatcher.cs" />
+    <Compile Include="MonoBuildInfo.cs" />
+    <Compile Include="MonoBuildTab.cs" />
+    <Compile Include="MonoBottomPanel.cs" />
+    <Compile Include="GodotSharpExport.cs" />
+    <Compile Include="CSharpProject.cs" />
+    <Compile Include="Utils\CollectionExtensions.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\GodotTools.BuildLogger\GodotTools.BuildLogger.csproj">
+      <Project>{6ce9a984-37b1-4f8a-8fe9-609f05f071b3}</Project>
+      <Name>GodotTools.BuildLogger</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\GodotTools.ProjectEditor\GodotTools.ProjectEditor.csproj">
+      <Project>{A8CDAD94-C6D4-4B19-A7E7-76C53CC92984}</Project>
+      <Name>GodotTools.ProjectEditor</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\GodotTools.Core\GodotTools.Core.csproj">
+      <Project>{639E48BD-44E5-4091-8EDD-22D36DC0768D}</Project>
+      <Name>GodotTools.Core</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Editor" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs b/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs
new file mode 100644
index 0000000000..aa52079cf4
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs
@@ -0,0 +1,47 @@
+using Godot;
+using GodotTools.Internals;
+
+namespace GodotTools
+{
+    public class HotReloadAssemblyWatcher : Node
+    {
+        private Timer watchTimer;
+
+        public override void _Notification(int what)
+        {
+            if (what == MainLoop.NotificationWmFocusIn)
+            {
+                RestartTimer();
+
+                if (Internal.IsAssembliesReloadingNeeded())
+                    Internal.ReloadAssemblies(softReload: false);
+            }
+        }
+
+        private void TimerTimeout()
+        {
+            if (Internal.IsAssembliesReloadingNeeded())
+                Internal.ReloadAssemblies(softReload: false);
+        }
+
+        public void RestartTimer()
+        {
+            watchTimer.Stop();
+            watchTimer.Start();
+        }
+
+        public override void _Ready()
+        {
+            base._Ready();
+
+            watchTimer = new Timer
+            {
+                OneShot = false,
+                WaitTime = (float) Internal.EditorDef("mono/assembly_watch_interval_sec", 0.5)
+            };
+            watchTimer.Connect("timeout", this, nameof(TimerTimeout));
+            AddChild(watchTimer);
+            watchTimer.Start();
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/BindingsGenerator.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/BindingsGenerator.cs
new file mode 100644
index 0000000000..1daa5e138e
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/BindingsGenerator.cs
@@ -0,0 +1,87 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace GodotTools.Internals
+{
+    public class BindingsGenerator : IDisposable
+    {
+        class BindingsGeneratorSafeHandle : SafeHandle
+        {
+            public BindingsGeneratorSafeHandle(IntPtr handle) : base(IntPtr.Zero, true)
+            {
+                this.handle = handle;
+            }
+
+            public override bool IsInvalid => handle == IntPtr.Zero;
+
+            protected override bool ReleaseHandle()
+            {
+                internal_Dtor(handle);
+                return true;
+            }
+        }
+
+        private BindingsGeneratorSafeHandle safeHandle;
+        private bool disposed = false;
+
+        public bool LogPrintEnabled
+        {
+            get => internal_LogPrintEnabled(GetPtr());
+            set => internal_SetLogPrintEnabled(GetPtr(), value);
+        }
+
+        public static uint Version => internal_Version();
+        public static uint CsGlueVersion => internal_CsGlueVersion();
+
+        public Godot.Error GenerateCsApi(string outputDir) => internal_GenerateCsApi(GetPtr(), outputDir);
+
+        internal IntPtr GetPtr()
+        {
+            if (disposed)
+                throw new ObjectDisposedException(GetType().FullName);
+
+            return safeHandle.DangerousGetHandle();
+        }
+
+        public void Dispose()
+        {
+            if (disposed)
+                return;
+
+            if (safeHandle != null && !safeHandle.IsInvalid)
+            {
+                safeHandle.Dispose();
+                safeHandle = null;
+            }
+
+            disposed = true;
+        }
+
+        public BindingsGenerator()
+        {
+            safeHandle = new BindingsGeneratorSafeHandle(internal_Ctor());
+        }
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern IntPtr internal_Ctor();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_Dtor(IntPtr handle);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_LogPrintEnabled(IntPtr handle);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_SetLogPrintEnabled(IntPtr handle, bool enabled);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern Godot.Error internal_GenerateCsApi(IntPtr handle, string outputDir);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern uint internal_Version();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern uint internal_CsGlueVersion();
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/EditorProgress.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/EditorProgress.cs
new file mode 100644
index 0000000000..70ba7c733a
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/EditorProgress.cs
@@ -0,0 +1,50 @@
+using System;
+using System.Runtime.CompilerServices;
+using Godot;
+
+namespace GodotTools.Internals
+{
+    public class EditorProgress : IDisposable
+    {
+        public string Task { get; }
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_Create(string task, string label, int amount, bool canCancel);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_Dispose(string task);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_Step(string task, string state, int step, bool forceRefresh);
+
+        public EditorProgress(string task, string label, int amount, bool canCancel = false)
+        {
+            Task = task;
+            internal_Create(task, label, amount, canCancel);
+        }
+
+        ~EditorProgress()
+        {
+            // Should never rely on the GC to dispose EditorProgress.
+            // It should be disposed immediately when the task finishes.
+            GD.PushError("EditorProgress disposed by the Garbage Collector");
+            Dispose();
+        }
+
+        public void Dispose()
+        {
+            internal_Dispose(Task);
+            GC.SuppressFinalize(this);
+        }
+
+        public void Step(string state, int step = -1, bool forceRefresh = true)
+        {
+            internal_Step(Task, state, step, forceRefresh);
+        }
+
+        public bool TryStep(string state, int step = -1, bool forceRefresh = true)
+        {
+            return internal_Step(Task, state, step, forceRefresh);
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs
new file mode 100644
index 0000000000..ddf3b829b5
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs
@@ -0,0 +1,91 @@
+using System.Runtime.CompilerServices;
+
+namespace GodotTools.Internals
+{
+    public static class GodotSharpDirs
+    {
+        public static string ResDataDir => internal_ResDataDir();
+        public static string ResMetadataDir => internal_ResMetadataDir();
+        public static string ResAssembliesBaseDir => internal_ResAssembliesBaseDir();
+        public static string ResAssembliesDir => internal_ResAssembliesDir();
+        public static string ResConfigDir => internal_ResConfigDir();
+        public static string ResTempDir => internal_ResTempDir();
+        public static string ResTempAssembliesBaseDir => internal_ResTempAssembliesBaseDir();
+        public static string ResTempAssembliesDir => internal_ResTempAssembliesDir();
+
+        public static string MonoUserDir => internal_MonoUserDir();
+        public static string MonoLogsDir => internal_MonoLogsDir();
+
+        #region Tools-only
+        public static string MonoSolutionsDir => internal_MonoSolutionsDir();
+        public static string BuildLogsDirs => internal_BuildLogsDirs();
+
+        public static string ProjectSlnPath => internal_ProjectSlnPath();
+        public static string ProjectCsProjPath => internal_ProjectCsProjPath();
+
+        public static string DataEditorToolsDir => internal_DataEditorToolsDir();
+        public static string DataEditorPrebuiltApiDir => internal_DataEditorPrebuiltApiDir();
+        #endregion
+
+        public static string DataMonoEtcDir => internal_DataMonoEtcDir();
+        public static string DataMonoLibDir => internal_DataMonoLibDir();
+
+        #region Windows-only
+        public static string DataMonoBinDir => internal_DataMonoBinDir();
+        #endregion
+        
+        
+        #region Internal
+        
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResDataDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResMetadataDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResAssembliesBaseDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResAssembliesDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResConfigDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResTempDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResTempAssembliesBaseDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ResTempAssembliesDir();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_MonoUserDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_MonoLogsDir();
+
+        #region Tools-only
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_MonoSolutionsDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_BuildLogsDirs();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ProjectSlnPath();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_ProjectCsProjPath();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_DataEditorToolsDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_DataEditorPrebuiltApiDir();
+        #endregion
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_DataMonoEtcDir();
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_DataMonoLibDir();
+
+        #region Windows-only
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_DataMonoBinDir();
+        #endregion
+        
+        #endregion
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs
new file mode 100644
index 0000000000..5c7ce832cd
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs
@@ -0,0 +1,127 @@
+using System;
+using System.Runtime.CompilerServices;
+using Godot;
+using Godot.Collections;
+
+namespace GodotTools.Internals
+{
+    public static class Internal
+    {
+        public const string CSharpLanguageType = "CSharpScript";
+        public const string CSharpLanguageExtension = "cs";
+
+        public static float EditorScale => internal_EditorScale();
+
+        public static object GlobalDef(string setting, object defaultValue, bool restartIfChanged = false) =>
+            internal_GlobalDef(setting, defaultValue, restartIfChanged);
+
+        public static object EditorDef(string setting, object defaultValue, bool restartIfChanged = false) =>
+            internal_EditorDef(setting, defaultValue, restartIfChanged);
+
+        public static string FullTemplatesDir =>
+            internal_FullTemplatesDir();
+
+        public static string SimplifyGodotPath(this string path) => internal_SimplifyGodotPath(path);
+
+        public static bool IsOsxAppBundleInstalled(string bundleId) => internal_IsOsxAppBundleInstalled(bundleId);
+
+        public static bool MetadataIsApiAssemblyInvalidated(ApiAssemblyType apiType) =>
+            internal_MetadataIsApiAssemblyInvalidated(apiType);
+
+        public static void MetadataSetApiAssemblyInvalidated(ApiAssemblyType apiType, bool invalidated) =>
+            internal_MetadataSetApiAssemblyInvalidated(apiType, invalidated);
+
+        public static bool IsMessageQueueFlushing() => internal_IsMessageQueueFlushing();
+
+        public static bool GodotIs32Bits() => internal_GodotIs32Bits();
+
+        public static bool GodotIsRealTDouble() => internal_GodotIsRealTDouble();
+
+        public static void GodotMainIteration() => internal_GodotMainIteration();
+
+        public static ulong GetCoreApiHash() => internal_GetCoreApiHash();
+
+        public static ulong GetEditorApiHash() => internal_GetEditorApiHash();
+
+        public static bool IsAssembliesReloadingNeeded() => internal_IsAssembliesReloadingNeeded();
+
+        public static void ReloadAssemblies(bool softReload) => internal_ReloadAssemblies(softReload);
+
+        public static void ScriptEditorDebuggerReloadScripts() => internal_ScriptEditorDebuggerReloadScripts();
+
+        public static bool ScriptEditorEdit(Resource resource, int line, int col, bool grabFocus = true) =>
+            internal_ScriptEditorEdit(resource, line, col, grabFocus);
+
+        public static void EditorNodeShowScriptScreen() => internal_EditorNodeShowScriptScreen();
+
+        public static Dictionary<string, object> GetScriptsMetadataOrNothing() =>
+            internal_GetScriptsMetadataOrNothing(typeof(Dictionary<string, object>));
+
+        public static string MonoWindowsInstallRoot => internal_MonoWindowsInstallRoot();
+
+        // Internal Calls
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern float internal_EditorScale();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern object internal_GlobalDef(string setting, object defaultValue, bool restartIfChanged);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern object internal_EditorDef(string setting, object defaultValue, bool restartIfChanged);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_FullTemplatesDir();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_SimplifyGodotPath(this string path);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_IsOsxAppBundleInstalled(string bundleId);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_MetadataIsApiAssemblyInvalidated(ApiAssemblyType apiType);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_MetadataSetApiAssemblyInvalidated(ApiAssemblyType apiType, bool invalidated);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_IsMessageQueueFlushing();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_GodotIs32Bits();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_GodotIsRealTDouble();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_GodotMainIteration();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern ulong internal_GetCoreApiHash();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern ulong internal_GetEditorApiHash();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_IsAssembliesReloadingNeeded();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_ReloadAssemblies(bool softReload);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_ScriptEditorDebuggerReloadScripts();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern bool internal_ScriptEditorEdit(Resource resource, int line, int col, bool grabFocus);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern void internal_EditorNodeShowScriptScreen();
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern Dictionary<string, object> internal_GetScriptsMetadataOrNothing(Type dictType);
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern string internal_MonoWindowsInstallRoot();
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/ScriptClassParser.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/ScriptClassParser.cs
new file mode 100644
index 0000000000..2497d276a9
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/ScriptClassParser.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Runtime.CompilerServices;
+using Godot;
+using Godot.Collections;
+
+namespace GodotTools.Internals
+{
+    public static class ScriptClassParser
+    {
+        public class ClassDecl
+        {
+            public string Name { get; }
+            public string Namespace { get; }
+            public bool Nested { get; }
+            public int BaseCount { get; }
+
+            public ClassDecl(string name, string @namespace, bool nested, int baseCount)
+            {
+                Name = name;
+                Namespace = @namespace;
+                Nested = nested;
+                BaseCount = baseCount;
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        private static extern Error internal_ParseFile(string filePath, Array<Dictionary> classes);
+
+        public static void ParseFileOrThrow(string filePath, out IEnumerable<ClassDecl> classes)
+        {
+            var classesArray = new Array<Dictionary>();
+            var error = internal_ParseFile(filePath, classesArray);
+            if (error != Error.Ok)
+                throw new Exception($"Failed to determine namespace and class for script: {filePath}. Parse error: {error}");
+
+            var classesList = new List<ClassDecl>();
+
+            foreach (var classDeclDict in classesArray)
+            {
+                classesList.Add(new ClassDecl(
+                    (string) classDeclDict["name"],
+                    (string) classDeclDict["namespace"],
+                    (bool) classDeclDict["nested"],
+                    (int) classDeclDict["base_count"]
+                ));
+            }
+
+            classes = classesList;
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/MonoBottomPanel.cs b/modules/mono/editor/GodotTools/GodotTools/MonoBottomPanel.cs
new file mode 100644
index 0000000000..300cf7fcb9
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/MonoBottomPanel.cs
@@ -0,0 +1,342 @@
+using Godot;
+using System;
+using System.IO;
+using Godot.Collections;
+using GodotTools.Internals;
+using File = GodotTools.Utils.File;
+using Path = System.IO.Path;
+
+namespace GodotTools
+{
+    public class MonoBottomPanel : VBoxContainer
+    {
+        private EditorInterface editorInterface;
+
+        private TabContainer panelTabs;
+
+        private VBoxContainer panelBuildsTab;
+
+        private ItemList buildTabsList;
+        private TabContainer buildTabs;
+
+        private ToolButton warningsBtn;
+        private ToolButton errorsBtn;
+        private Button viewLogBtn;
+
+        private void _UpdateBuildTabsList()
+        {
+            buildTabsList.Clear();
+
+            int currentTab = buildTabs.CurrentTab;
+
+            bool noCurrentTab = currentTab < 0 || currentTab >= buildTabs.GetTabCount();
+
+            for (int i = 0; i < buildTabs.GetChildCount(); i++)
+            {
+                var tab = (MonoBuildTab) buildTabs.GetChild(i);
+
+                if (tab == null)
+                    continue;
+
+                string itemName = Path.GetFileNameWithoutExtension(tab.BuildInfo.Solution);
+                itemName += " [" + tab.BuildInfo.Configuration + "]";
+
+                buildTabsList.AddItem(itemName, tab.IconTexture);
+
+                string itemTooltip = "Solution: " + tab.BuildInfo.Solution;
+                itemTooltip += "\nConfiguration: " + tab.BuildInfo.Configuration;
+                itemTooltip += "\nStatus: ";
+
+                if (tab.BuildExited)
+                    itemTooltip += tab.BuildResult == MonoBuildTab.BuildResults.Success ? "Succeeded" : "Errored";
+                else
+                    itemTooltip += "Running";
+
+                if (!tab.BuildExited || tab.BuildResult == MonoBuildTab.BuildResults.Error)
+                    itemTooltip += $"\nErrors: {tab.ErrorCount}";
+
+                itemTooltip += $"\nWarnings: {tab.WarningCount}";
+
+                buildTabsList.SetItemTooltip(i, itemTooltip);
+
+                if (noCurrentTab || currentTab == i)
+                {
+                    buildTabsList.Select(i);
+                    _BuildTabsItemSelected(i);
+                }
+            }
+        }
+
+        public MonoBuildTab GetBuildTabFor(MonoBuildInfo buildInfo)
+        {
+            foreach (var buildTab in new Array<MonoBuildTab>(buildTabs.GetChildren()))
+            {
+                if (buildTab.BuildInfo.Equals(buildInfo))
+                    return buildTab;
+            }
+
+            var newBuildTab = new MonoBuildTab(buildInfo);
+            AddBuildTab(newBuildTab);
+
+            return newBuildTab;
+        }
+
+        private void _BuildTabsItemSelected(int idx)
+        {
+            if (idx < 0 || idx >= buildTabs.GetTabCount())
+                throw new IndexOutOfRangeException();
+
+            buildTabs.CurrentTab = idx;
+            if (!buildTabs.Visible)
+                buildTabs.Visible = true;
+
+            warningsBtn.Visible = true;
+            errorsBtn.Visible = true;
+            viewLogBtn.Visible = true;
+        }
+
+        private void _BuildTabsNothingSelected()
+        {
+            if (buildTabs.GetTabCount() != 0)
+            {
+                // just in case
+                buildTabs.Visible = false;
+
+                // This callback is called when clicking on the empty space of the list.
+                // ItemList won't deselect the items automatically, so we must do it ourselves.
+                buildTabsList.UnselectAll();
+            }
+
+            warningsBtn.Visible = false;
+            errorsBtn.Visible = false;
+            viewLogBtn.Visible = false;
+        }
+
+        private void _WarningsToggled(bool pressed)
+        {
+            int currentTab = buildTabs.CurrentTab;
+
+            if (currentTab < 0 || currentTab >= buildTabs.GetTabCount())
+                throw new InvalidOperationException("No tab selected");
+
+            var buildTab = (MonoBuildTab) buildTabs.GetChild(currentTab);
+            buildTab.WarningsVisible = pressed;
+            buildTab.UpdateIssuesList();
+        }
+
+        private void _ErrorsToggled(bool pressed)
+        {
+            int currentTab = buildTabs.CurrentTab;
+
+            if (currentTab < 0 || currentTab >= buildTabs.GetTabCount())
+                throw new InvalidOperationException("No tab selected");
+
+            var buildTab = (MonoBuildTab) buildTabs.GetChild(currentTab);
+            buildTab.ErrorsVisible = pressed;
+            buildTab.UpdateIssuesList();
+        }
+
+        public void BuildProjectPressed()
+        {
+            if (!File.Exists(GodotSharpDirs.ProjectSlnPath))
+                return; // No solution to build
+
+            string editorScriptsMetadataPath = Path.Combine(GodotSharpDirs.ResMetadataDir, "scripts_metadata.editor");
+            string playerScriptsMetadataPath = Path.Combine(GodotSharpDirs.ResMetadataDir, "scripts_metadata.editor_player");
+
+            CSharpProject.GenerateScriptsMetadata(GodotSharpDirs.ProjectCsProjPath, editorScriptsMetadataPath);
+
+            if (File.Exists(editorScriptsMetadataPath))
+            {
+                try
+                {
+                    File.Copy(editorScriptsMetadataPath, playerScriptsMetadataPath);
+                }
+                catch (IOException e)
+                {
+                    GD.PushError($"Failed to copy scripts metadata file. Exception message: {e.Message}");
+                    return;
+                }
+            }
+
+            var godotDefines = new[]
+            {
+                OS.GetName(),
+                Internal.GodotIs32Bits() ? "32" : "64"
+            };
+
+            bool buildSuccess = GodotSharpBuilds.BuildProjectBlocking("Tools", godotDefines);
+
+            if (!buildSuccess)
+                return;
+
+            // Notify running game for hot-reload
+            Internal.ScriptEditorDebuggerReloadScripts();
+
+            // Hot-reload in the editor
+            GodotSharpEditor.Instance.GetNode<HotReloadAssemblyWatcher>("HotReloadAssemblyWatcher").RestartTimer();
+
+            if (Internal.IsAssembliesReloadingNeeded())
+                Internal.ReloadAssemblies(softReload: false);
+        }
+
+        private void _ViewLogPressed()
+        {
+            if (!buildTabsList.IsAnythingSelected())
+                return;
+
+            var selectedItems = buildTabsList.GetSelectedItems();
+
+            if (selectedItems.Length != 1)
+                throw new InvalidOperationException($"Expected 1 selected item, got {selectedItems.Length}");
+
+            int selectedItem = selectedItems[0];
+
+            var buildTab = (MonoBuildTab) buildTabs.GetTabControl(selectedItem);
+
+            OS.ShellOpen(Path.Combine(buildTab.BuildInfo.LogsDirPath, GodotSharpBuilds.MsBuildLogFileName));
+        }
+
+        public override void _Notification(int what)
+        {
+            base._Notification(what);
+
+            if (what == EditorSettings.NotificationEditorSettingsChanged)
+            {
+                var editorBaseControl = editorInterface.GetBaseControl();
+                panelTabs.AddStyleboxOverride("panel", editorBaseControl.GetStylebox("DebuggerPanel", "EditorStyles"));
+                panelTabs.AddStyleboxOverride("tab_fg", editorBaseControl.GetStylebox("DebuggerTabFG", "EditorStyles"));
+                panelTabs.AddStyleboxOverride("tab_bg", editorBaseControl.GetStylebox("DebuggerTabBG", "EditorStyles"));
+            }
+        }
+
+        public void AddBuildTab(MonoBuildTab buildTab)
+        {
+            buildTabs.AddChild(buildTab);
+            RaiseBuildTab(buildTab);
+        }
+
+        public void RaiseBuildTab(MonoBuildTab buildTab)
+        {
+            if (buildTab.GetParent() != buildTabs)
+                throw new InvalidOperationException("Build tab is not in the tabs list");
+
+            buildTabs.MoveChild(buildTab, 0);
+            _UpdateBuildTabsList();
+        }
+
+        public void ShowBuildTab()
+        {
+            for (int i = 0; i < panelTabs.GetTabCount(); i++)
+            {
+                if (panelTabs.GetTabControl(i) == panelBuildsTab)
+                {
+                    panelTabs.CurrentTab = i;
+                    GodotSharpEditor.Instance.MakeBottomPanelItemVisible(this);
+                    return;
+                }
+            }
+
+            GD.PushError("Builds tab not found");
+        }
+
+        public override void _Ready()
+        {
+            base._Ready();
+
+            editorInterface = GodotSharpEditor.Instance.GetEditorInterface();
+
+            var editorBaseControl = editorInterface.GetBaseControl();
+
+            SizeFlagsVertical = (int) SizeFlags.ExpandFill;
+            SetAnchorsAndMarginsPreset(LayoutPreset.Wide);
+
+            panelTabs = new TabContainer
+            {
+                TabAlign = TabContainer.TabAlignEnum.Left,
+                RectMinSize = new Vector2(0, 228) * Internal.EditorScale,
+                SizeFlagsVertical = (int) SizeFlags.ExpandFill
+            };
+            panelTabs.AddStyleboxOverride("panel", editorBaseControl.GetStylebox("DebuggerPanel", "EditorStyles"));
+            panelTabs.AddStyleboxOverride("tab_fg", editorBaseControl.GetStylebox("DebuggerTabFG", "EditorStyles"));
+            panelTabs.AddStyleboxOverride("tab_bg", editorBaseControl.GetStylebox("DebuggerTabBG", "EditorStyles"));
+            AddChild(panelTabs);
+
+            {
+                // Builds tab
+                panelBuildsTab = new VBoxContainer
+                {
+                    Name = "Builds", // TTR
+                    SizeFlagsHorizontal = (int) SizeFlags.ExpandFill
+                };
+                panelTabs.AddChild(panelBuildsTab);
+
+                var toolBarHBox = new HBoxContainer {SizeFlagsHorizontal = (int) SizeFlags.ExpandFill};
+                panelBuildsTab.AddChild(toolBarHBox);
+
+                var buildProjectBtn = new Button
+                {
+                    Text = "Build Project", // TTR
+                    FocusMode = FocusModeEnum.None
+                };
+                buildProjectBtn.Connect("pressed", this, nameof(BuildProjectPressed));
+                toolBarHBox.AddChild(buildProjectBtn);
+
+                toolBarHBox.AddSpacer(begin: false);
+
+                warningsBtn = new ToolButton
+                {
+                    Text = "Warnings", // TTR
+                    ToggleMode = true,
+                    Pressed = true,
+                    Visible = false,
+                    FocusMode = FocusModeEnum.None
+                };
+                warningsBtn.Connect("toggled", this, nameof(_WarningsToggled));
+                toolBarHBox.AddChild(warningsBtn);
+
+                errorsBtn = new ToolButton
+                {
+                    Text = "Errors", // TTR
+                    ToggleMode = true,
+                    Pressed = true,
+                    Visible = false,
+                    FocusMode = FocusModeEnum.None
+                };
+                errorsBtn.Connect("toggled", this, nameof(_ErrorsToggled));
+                toolBarHBox.AddChild(errorsBtn);
+
+                toolBarHBox.AddSpacer(begin: false);
+
+                viewLogBtn = new Button
+                {
+                    Text = "View log", // TTR
+                    FocusMode = FocusModeEnum.None,
+                    Visible = false
+                };
+                viewLogBtn.Connect("pressed", this, nameof(_ViewLogPressed));
+                toolBarHBox.AddChild(viewLogBtn);
+
+                var hsc = new HSplitContainer
+                {
+                    SizeFlagsHorizontal = (int) SizeFlags.ExpandFill,
+                    SizeFlagsVertical = (int) SizeFlags.ExpandFill
+                };
+                panelBuildsTab.AddChild(hsc);
+
+                buildTabsList = new ItemList {SizeFlagsHorizontal = (int) SizeFlags.ExpandFill};
+                buildTabsList.Connect("item_selected", this, nameof(_BuildTabsItemSelected));
+                buildTabsList.Connect("nothing_selected", this, nameof(_BuildTabsNothingSelected));
+                hsc.AddChild(buildTabsList);
+
+                buildTabs = new TabContainer
+                {
+                    TabAlign = TabContainer.TabAlignEnum.Left,
+                    SizeFlagsHorizontal = (int) SizeFlags.ExpandFill,
+                    TabsVisible = false
+                };
+                hsc.AddChild(buildTabs);
+            }
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/MonoBuildInfo.cs b/modules/mono/editor/GodotTools/GodotTools/MonoBuildInfo.cs
new file mode 100644
index 0000000000..858e852392
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/MonoBuildInfo.cs
@@ -0,0 +1,47 @@
+using System;
+using Godot;
+using Godot.Collections;
+using GodotTools.Internals;
+using Path = System.IO.Path;
+
+namespace GodotTools
+{
+    [Serializable]
+    public sealed class MonoBuildInfo : Reference // TODO Remove Reference once we have proper serialization
+    {
+        public string Solution { get; }
+        public string Configuration { get; }
+        public Array<string> CustomProperties { get; } = new Array<string>(); // TODO Use List once we have proper serialization
+
+        public string LogsDirPath => Path.Combine(GodotSharpDirs.BuildLogsDirs, $"{Solution.MD5Text()}_{Configuration}");
+
+        public override bool Equals(object obj)
+        {
+            if (obj is MonoBuildInfo other)
+                return other.Solution == Solution && other.Configuration == Configuration;
+
+            return false;
+        }
+
+        public override int GetHashCode()
+        {
+            unchecked
+            {
+                int hash = 17;
+                hash = hash * 29 + Solution.GetHashCode();
+                hash = hash * 29 + Configuration.GetHashCode();
+                return hash;
+            }
+        }
+
+        private MonoBuildInfo()
+        {
+        }
+
+        public MonoBuildInfo(string solution, string configuration)
+        {
+            Solution = solution;
+            Configuration = configuration;
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/MonoBuildTab.cs b/modules/mono/editor/GodotTools/GodotTools/MonoBuildTab.cs
new file mode 100644
index 0000000000..75fdacc0da
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/MonoBuildTab.cs
@@ -0,0 +1,260 @@
+using Godot;
+using System;
+using Godot.Collections;
+using GodotTools.Internals;
+using File = GodotTools.Utils.File;
+using Path = System.IO.Path;
+
+namespace GodotTools
+{
+    public class MonoBuildTab : VBoxContainer
+    {
+        public enum BuildResults
+        {
+            Error,
+            Success
+        }
+
+        [Serializable]
+        private class BuildIssue : Reference // TODO Remove Reference once we have proper serialization
+        {
+            public bool Warning { get; set; }
+            public string File { get; set; }
+            public int Line { get; set; }
+            public int Column { get; set; }
+            public string Code { get; set; }
+            public string Message { get; set; }
+            public string ProjectFile { get; set; }
+        }
+
+        private readonly Array<BuildIssue> issues = new Array<BuildIssue>(); // TODO Use List once we have proper serialization
+        private ItemList issuesList;
+
+        public bool BuildExited { get; private set; } = false;
+
+        public BuildResults? BuildResult { get; private set; } = null;
+
+        public int ErrorCount { get; private set; } = 0;
+
+        public int WarningCount { get; private set; } = 0;
+
+        public bool ErrorsVisible { get; set; } = true;
+        public bool WarningsVisible { get; set; } = true;
+
+        public Texture IconTexture
+        {
+            get
+            {
+                if (!BuildExited)
+                    return GetIcon("Stop", "EditorIcons");
+
+                if (BuildResult == BuildResults.Error)
+                    return GetIcon("StatusError", "EditorIcons");
+
+                return GetIcon("StatusSuccess", "EditorIcons");
+            }
+        }
+
+        public MonoBuildInfo BuildInfo { get; private set; }
+
+        private void _LoadIssuesFromFile(string csvFile)
+        {
+            using (var file = new Godot.File())
+            {
+                Error openError = file.Open(csvFile, Godot.File.ModeFlags.Read);
+
+                if (openError != Error.Ok)
+                    return;
+
+                while (!file.EofReached())
+                {
+                    string[] csvColumns = file.GetCsvLine();
+
+                    if (csvColumns.Length == 1 && csvColumns[0].Empty())
+                        return;
+
+                    if (csvColumns.Length != 7)
+                    {
+                        GD.PushError($"Expected 7 columns, got {csvColumns.Length}");
+                        continue;
+                    }
+
+                    var issue = new BuildIssue
+                    {
+                        Warning = csvColumns[0] == "warning",
+                        File = csvColumns[1],
+                        Line = int.Parse(csvColumns[2]),
+                        Column = int.Parse(csvColumns[3]),
+                        Code = csvColumns[4],
+                        Message = csvColumns[5],
+                        ProjectFile = csvColumns[6]
+                    };
+
+                    if (issue.Warning)
+                        WarningCount += 1;
+                    else
+                        ErrorCount += 1;
+
+                    issues.Add(issue);
+                }
+            }
+        }
+
+        private void _IssueActivated(int idx)
+        {
+            if (idx < 0 || idx >= issuesList.GetItemCount())
+                throw new IndexOutOfRangeException("Item list index out of range");
+
+            // Get correct issue idx from issue list
+            int issueIndex = (int) issuesList.GetItemMetadata(idx);
+
+            if (idx < 0 || idx >= issues.Count)
+                throw new IndexOutOfRangeException("Issue index out of range");
+
+            BuildIssue issue = issues[issueIndex];
+
+            if (issue.ProjectFile.Empty() && issue.File.Empty())
+                return;
+
+            string projectDir = issue.ProjectFile.Length > 0 ? issue.ProjectFile.GetBaseDir() : BuildInfo.Solution.GetBaseDir();
+
+            string file = Path.Combine(projectDir.SimplifyGodotPath(), issue.File.SimplifyGodotPath());
+
+            if (!File.Exists(file))
+                return;
+
+            file = ProjectSettings.LocalizePath(file);
+
+            if (file.StartsWith("res://"))
+            {
+                var script = (Script) ResourceLoader.Load(file, typeHint: Internal.CSharpLanguageType);
+
+                if (script != null && Internal.ScriptEditorEdit(script, issue.Line, issue.Column))
+                    Internal.EditorNodeShowScriptScreen();
+            }
+        }
+
+        public void UpdateIssuesList()
+        {
+            issuesList.Clear();
+
+            using (var warningIcon = GetIcon("Warning", "EditorIcons"))
+            using (var errorIcon = GetIcon("Error", "EditorIcons"))
+            {
+                for (int i = 0; i < issues.Count; i++)
+                {
+                    BuildIssue issue = issues[i];
+
+                    if (!(issue.Warning ? WarningsVisible : ErrorsVisible))
+                        continue;
+
+                    string tooltip = string.Empty;
+                    tooltip += $"Message: {issue.Message}";
+
+                    if (!issue.Code.Empty())
+                        tooltip += $"\nCode: {issue.Code}";
+
+                    tooltip += $"\nType: {(issue.Warning ? "warning" : "error")}";
+
+                    string text = string.Empty;
+
+                    if (!issue.File.Empty())
+                    {
+                        text += $"{issue.File}({issue.Line},{issue.Column}): ";
+
+                        tooltip += $"\nFile: {issue.File}";
+                        tooltip += $"\nLine: {issue.Line}";
+                        tooltip += $"\nColumn: {issue.Column}";
+                    }
+
+                    if (!issue.ProjectFile.Empty())
+                        tooltip += $"\nProject: {issue.ProjectFile}";
+
+                    text += issue.Message;
+
+                    int lineBreakIdx = text.IndexOf("\n", StringComparison.Ordinal);
+                    string itemText = lineBreakIdx == -1 ? text : text.Substring(0, lineBreakIdx);
+                    issuesList.AddItem(itemText, issue.Warning ? warningIcon : errorIcon);
+
+                    int index = issuesList.GetItemCount() - 1;
+                    issuesList.SetItemTooltip(index, tooltip);
+                    issuesList.SetItemMetadata(index, i);
+                }
+            }
+        }
+
+        public void OnBuildStart()
+        {
+            BuildExited = false;
+
+            issues.Clear();
+            WarningCount = 0;
+            ErrorCount = 0;
+            UpdateIssuesList();
+
+            GodotSharpEditor.Instance.MonoBottomPanel.RaiseBuildTab(this);
+        }
+
+        public void OnBuildExit(BuildResults result)
+        {
+            BuildExited = true;
+            BuildResult = result;
+
+            _LoadIssuesFromFile(Path.Combine(BuildInfo.LogsDirPath, GodotSharpBuilds.MsBuildIssuesFileName));
+            UpdateIssuesList();
+
+            GodotSharpEditor.Instance.MonoBottomPanel.RaiseBuildTab(this);
+        }
+
+        public void OnBuildExecFailed(string cause)
+        {
+            BuildExited = true;
+            BuildResult = BuildResults.Error;
+
+            issuesList.Clear();
+
+            var issue = new BuildIssue {Message = cause, Warning = false};
+
+            ErrorCount += 1;
+            issues.Add(issue);
+
+            UpdateIssuesList();
+
+            GodotSharpEditor.Instance.MonoBottomPanel.RaiseBuildTab(this);
+        }
+
+        public void RestartBuild()
+        {
+            if (!BuildExited)
+                throw new InvalidOperationException("Build already started");
+
+            GodotSharpBuilds.RestartBuild(this);
+        }
+
+        public void StopBuild()
+        {
+            if (!BuildExited)
+                throw new InvalidOperationException("Build is not in progress");
+
+            GodotSharpBuilds.StopBuild(this);
+        }
+
+        public override void _Ready()
+        {
+            base._Ready();
+
+            issuesList = new ItemList {SizeFlagsVertical = (int) SizeFlags.ExpandFill};
+            issuesList.Connect("item_activated", this, nameof(_IssueActivated));
+            AddChild(issuesList);
+        }
+
+        private MonoBuildTab()
+        {
+        }
+
+        public MonoBuildTab(MonoBuildInfo buildInfo)
+        {
+            BuildInfo = buildInfo;
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotSharpTools/Editor/MonoDevelopInstance.cs b/modules/mono/editor/GodotTools/GodotTools/MonoDevelopInstance.cs
index fba4a8f65c..0c8d86e799 100644
--- a/modules/mono/editor/GodotSharpTools/Editor/MonoDevelopInstance.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/MonoDevelopInstance.cs
@@ -1,11 +1,11 @@
+using GodotTools.Core;
 using System;
 using System.IO;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Runtime.InteropServices;
-using System.Runtime.CompilerServices;
+using GodotTools.Internals;
 
-namespace GodotSharpTools.Editor
+namespace GodotTools
 {
     public class MonoDevelopInstance
     {
@@ -15,24 +15,24 @@ namespace GodotSharpTools.Editor
             VisualStudioForMac = 1
         }
 
-        readonly string solutionFile;
-        readonly EditorId editorId;
+        private readonly string solutionFile;
+        private readonly EditorId editorId;
 
-        Process process;
+        private Process process;
 
-        public void Execute(string[] files)
+        public void Execute(params string[] files)
         {
             bool newWindow = process == null || process.HasExited;
 
-            List<string> args = new List<string>();
+            var args = new List<string>();
 
             string command;
 
             if (Utils.OS.IsOSX())
             {
-                string bundleId = codeEditorBundleIds[editorId];
+                string bundleId = CodeEditorBundleIds[editorId];
 
-                if (IsApplicationBundleInstalled(bundleId))
+                if (Internal.IsOsxAppBundleInstalled(bundleId))
                 {
                     command = "open";
 
@@ -47,12 +47,12 @@ namespace GodotSharpTools.Editor
                 }
                 else
                 {
-                    command = codeEditorPaths[editorId];
+                    command = CodeEditorPaths[editorId];
                 }
             }
             else
             {
-                command = codeEditorPaths[editorId];
+                command = CodeEditorPaths[editorId];
             }
 
             args.Add("--ipc-tcp");
@@ -72,7 +72,7 @@ namespace GodotSharpTools.Editor
 
             if (newWindow)
             {
-                process = Process.Start(new ProcessStartInfo()
+                process = Process.Start(new ProcessStartInfo
                 {
                     FileName = command,
                     Arguments = string.Join(" ", args),
@@ -81,12 +81,12 @@ namespace GodotSharpTools.Editor
             }
             else
             {
-                Process.Start(new ProcessStartInfo()
+                Process.Start(new ProcessStartInfo
                 {
                     FileName = command,
                     Arguments = string.Join(" ", args),
                     UseShellExecute = false
-                });
+                })?.Dispose();
             }
         }
 
@@ -99,45 +99,42 @@ namespace GodotSharpTools.Editor
             this.editorId = editorId;
         }
 
-        [MethodImpl(MethodImplOptions.InternalCall)]
-        private extern static bool IsApplicationBundleInstalled(string bundleId);
-
-        static readonly IReadOnlyDictionary<EditorId, string> codeEditorPaths;
-        static readonly IReadOnlyDictionary<EditorId, string> codeEditorBundleIds;
+        private static readonly IReadOnlyDictionary<EditorId, string> CodeEditorPaths;
+        private static readonly IReadOnlyDictionary<EditorId, string> CodeEditorBundleIds;
 
         static MonoDevelopInstance()
         {
             if (Utils.OS.IsOSX())
             {
-                codeEditorPaths = new Dictionary<EditorId, string>
+                CodeEditorPaths = new Dictionary<EditorId, string>
                 {
                     // Rely on PATH
-                    { EditorId.MonoDevelop, "monodevelop" },
-                    { EditorId.VisualStudioForMac, "VisualStudio" }
+                    {EditorId.MonoDevelop, "monodevelop"},
+                    {EditorId.VisualStudioForMac, "VisualStudio"}
                 };
-                codeEditorBundleIds = new Dictionary<EditorId, string>
+                CodeEditorBundleIds = new Dictionary<EditorId, string>
                 {
                     // TODO EditorId.MonoDevelop
-                    { EditorId.VisualStudioForMac, "com.microsoft.visual-studio" }
+                    {EditorId.VisualStudioForMac, "com.microsoft.visual-studio"}
                 };
             }
             else if (Utils.OS.IsWindows())
             {
-                codeEditorPaths = new Dictionary<EditorId, string>
+                CodeEditorPaths = new Dictionary<EditorId, string>
                 {
                     // XamarinStudio is no longer a thing, and the latest version is quite old
                     // MonoDevelop is available from source only on Windows. The recommendation
                     // is to use Visual Studio instead. Since there are no official builds, we
                     // will rely on custom MonoDevelop builds being added to PATH.
-                    { EditorId.MonoDevelop, "MonoDevelop.exe" }
+                    {EditorId.MonoDevelop, "MonoDevelop.exe"}
                 };
             }
             else if (Utils.OS.IsUnix())
             {
-                codeEditorPaths = new Dictionary<EditorId, string>
+                CodeEditorPaths = new Dictionary<EditorId, string>
                 {
                     // Rely on PATH
-                    { EditorId.MonoDevelop, "monodevelop" }
+                    {EditorId.MonoDevelop, "monodevelop"}
                 };
             }
         }
diff --git a/modules/mono/editor/GodotTools/GodotTools/Properties/AssemblyInfo.cs b/modules/mono/editor/GodotTools/GodotTools/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000000..f5fe85c722
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Properties/AssemblyInfo.cs
@@ -0,0 +1,26 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes.
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle("GodotTools")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("Godot Engine contributors")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
+// The form "{Major}.{Minor}.*" will automatically update the build and revision,
+// and "{Major}.{Minor}.{Build}.*" will update just the revision.
+
+[assembly: AssemblyVersion("1.0.*")]
+
+// The following attributes are used to specify the signing key for the assembly,
+// if desired. See the Mono documentation for more information about signing.
+
+//[assembly: AssemblyDelaySign(false)]
+//[assembly: AssemblyKeyFile("")]
diff --git a/modules/mono/editor/GodotTools/GodotTools/Utils/CollectionExtensions.cs b/modules/mono/editor/GodotTools/GodotTools/Utils/CollectionExtensions.cs
new file mode 100644
index 0000000000..3ae6c10bbf
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Utils/CollectionExtensions.cs
@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+
+namespace GodotTools.Utils
+{
+    public static class CollectionExtensions
+    {
+        public static T SelectFirstNotNull<T>(this IEnumerable<T> enumerable, Func<T, T> predicate, T orElse = null)
+            where T : class
+        {
+            foreach (T elem in enumerable)
+            {
+                if (predicate(elem) != null)
+                    return elem;
+            }
+
+            return orElse;
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Utils/Directory.cs b/modules/mono/editor/GodotTools/GodotTools/Utils/Directory.cs
new file mode 100644
index 0000000000..c67d48b92a
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Utils/Directory.cs
@@ -0,0 +1,40 @@
+using System.IO;
+using Godot;
+
+namespace GodotTools.Utils
+{
+    public static class Directory
+    {
+        private static string GlobalizePath(this string path)
+        {
+            return ProjectSettings.GlobalizePath(path);
+        }
+
+        public static bool Exists(string path)
+        {
+            return System.IO.Directory.Exists(path.GlobalizePath());
+        }
+
+        /// Create directory recursively
+        public static DirectoryInfo CreateDirectory(string path)
+        {
+            return System.IO.Directory.CreateDirectory(path.GlobalizePath());
+        }
+
+        public static void Delete(string path, bool recursive)
+        {
+            System.IO.Directory.Delete(path.GlobalizePath(), recursive);
+        }
+
+
+        public static string[] GetDirectories(string path, string searchPattern, SearchOption searchOption)
+        {
+            return System.IO.Directory.GetDirectories(path.GlobalizePath(), searchPattern, searchOption);
+        }
+
+        public static string[] GetFiles(string path, string searchPattern, SearchOption searchOption)
+        {
+            return System.IO.Directory.GetFiles(path.GlobalizePath(), searchPattern, searchOption);
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Utils/File.cs b/modules/mono/editor/GodotTools/GodotTools/Utils/File.cs
new file mode 100644
index 0000000000..e1e2188edb
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Utils/File.cs
@@ -0,0 +1,43 @@
+using System;
+using Godot;
+
+namespace GodotTools.Utils
+{
+    public static class File
+    {
+        private static string GlobalizePath(this string path)
+        {
+            return ProjectSettings.GlobalizePath(path);
+        }
+
+        public static void WriteAllText(string path, string contents)
+        {
+            System.IO.File.WriteAllText(path.GlobalizePath(), contents);
+        }
+
+        public static bool Exists(string path)
+        {
+            return System.IO.File.Exists(path.GlobalizePath());
+        }
+
+        public static DateTime GetLastWriteTime(string path)
+        {
+            return System.IO.File.GetLastWriteTime(path.GlobalizePath());
+        }
+
+        public static void Delete(string path)
+        {
+            System.IO.File.Delete(path.GlobalizePath());
+        }
+
+        public static void Copy(string sourceFileName, string destFileName)
+        {
+            System.IO.File.Copy(sourceFileName.GlobalizePath(), destFileName.GlobalizePath(), overwrite: true);
+        }
+
+        public static byte[] ReadAllBytes(string path)
+        {
+            return System.IO.File.ReadAllBytes(path.GlobalizePath());
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs b/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs
new file mode 100644
index 0000000000..e48b1115db
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs
@@ -0,0 +1,127 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Runtime.CompilerServices;
+
+namespace GodotTools.Utils
+{
+    public static class OS
+    {
+        [MethodImpl(MethodImplOptions.InternalCall)]
+        extern static string GetPlatformName();
+
+        const string HaikuName = "Haiku";
+        const string OSXName = "OSX";
+        const string ServerName = "Server";
+        const string UWPName = "UWP";
+        const string WindowsName = "Windows";
+        const string X11Name = "X11";
+
+        public static bool IsHaiku()
+        {
+            return HaikuName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
+        }
+
+        public static bool IsOSX()
+        {
+            return OSXName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
+        }
+
+        public static bool IsServer()
+        {
+            return ServerName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
+        }
+
+        public static bool IsUWP()
+        {
+            return UWPName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
+        }
+
+        public static bool IsWindows()
+        {
+            return WindowsName.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
+        }
+
+        public static bool IsX11()
+        {
+            return X11Name.Equals(GetPlatformName(), StringComparison.OrdinalIgnoreCase);
+        }
+
+        private static bool? _isUnixCache;
+        private static readonly string[] UnixPlatforms = {HaikuName, OSXName, ServerName, X11Name};
+
+        public static bool IsUnix()
+        {
+            if (_isUnixCache.HasValue)
+                return _isUnixCache.Value;
+
+            string osName = GetPlatformName();
+            _isUnixCache = UnixPlatforms.Any(p => p.Equals(osName, StringComparison.OrdinalIgnoreCase));
+            return _isUnixCache.Value;
+        }
+
+        public static char PathSep => IsWindows() ? ';' : ':';
+
+        public static string PathWhich(string name)
+        {
+            string[] windowsExts = IsWindows() ? Environment.GetEnvironmentVariable("PATHEXT")?.Split(PathSep) : null;
+            string[] pathDirs = Environment.GetEnvironmentVariable("PATH")?.Split(PathSep);
+
+            var searchDirs = new List<string>();
+
+            if (pathDirs != null)
+                searchDirs.AddRange(pathDirs);
+
+            searchDirs.Add(System.IO.Directory.GetCurrentDirectory()); // last in the list
+
+            foreach (var dir in searchDirs)
+            {
+                string path = Path.Combine(dir, name);
+
+                if (IsWindows() && windowsExts != null)
+                {
+                    foreach (var extension in windowsExts)
+                    {
+                        string pathWithExtension = path + extension;
+
+                        if (File.Exists(pathWithExtension))
+                            return pathWithExtension;
+                    }
+                }
+                else
+                {
+                    if (File.Exists(path))
+                        return path;
+                }
+            }
+
+            return null;
+        }
+
+        public static void RunProcess(string command, IEnumerable<string> arguments)
+        {
+            string CmdLineArgsToString(IEnumerable<string> args)
+            {
+                return string.Join(" ", args.Select(arg => arg.Contains(" ") ? $@"""{arg}""" : arg));
+            }
+
+            ProcessStartInfo startInfo = new ProcessStartInfo(command, CmdLineArgsToString(arguments))
+            {
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                UseShellExecute = false
+            };
+
+            using (Process process = Process.Start(startInfo))
+            {
+                if (process == null)
+                    throw new Exception("No process was started");
+
+                process.BeginOutputReadLine();
+                process.BeginErrorReadLine();
+            }
+        }
+    }
+}
diff --git a/modules/mono/editor/bindings_generator.cpp b/modules/mono/editor/bindings_generator.cpp
index 5e0ce3554a..ebf317f08b 100644
--- a/modules/mono/editor/bindings_generator.cpp
+++ b/modules/mono/editor/bindings_generator.cpp
@@ -861,26 +861,22 @@ void BindingsGenerator::_generate_global_constants(StringBuilder &p_output) {
 	p_output.append("\n#pragma warning restore CS1591\n");
 }
 
-Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir, DotNetSolution &r_solution) {
-
-	String proj_dir = p_solution_dir.plus_file(CORE_API_ASSEMBLY_NAME);
+Error BindingsGenerator::generate_cs_core_project(const String &p_proj_dir, Vector<String> &r_compile_items) {
 
 	DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 	ERR_FAIL_COND_V(!da, ERR_CANT_CREATE);
 
-	if (!DirAccess::exists(proj_dir)) {
-		Error err = da->make_dir_recursive(proj_dir);
+	if (!DirAccess::exists(p_proj_dir)) {
+		Error err = da->make_dir_recursive(p_proj_dir);
 		ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
 	}
 
-	da->change_dir(proj_dir);
+	da->change_dir(p_proj_dir);
 	da->make_dir("Core");
 	da->make_dir("ObjectType");
 
-	String core_dir = path_join(proj_dir, "Core");
-	String obj_type_dir = path_join(proj_dir, "ObjectType");
-
-	Vector<String> compile_items;
+	String core_dir = path_join(p_proj_dir, "Core");
+	String obj_type_dir = path_join(p_proj_dir, "ObjectType");
 
 	// Generate source file for global scope constants and enums
 	{
@@ -891,7 +887,7 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 		if (save_err != OK)
 			return save_err;
 
-		compile_items.push_back(output_file);
+		r_compile_items.push_back(output_file);
 	}
 
 	for (OrderedHashMap<StringName, TypeInterface>::Element E = obj_types.front(); E; E = E.next()) {
@@ -909,7 +905,7 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 		if (err != OK)
 			return err;
 
-		compile_items.push_back(output_file);
+		r_compile_items.push_back(output_file);
 	}
 
 	// Generate sources from compressed files
@@ -939,7 +935,7 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 		file->store_buffer(data.ptr(), data.size());
 		file->close();
 
-		compile_items.push_back(output_file);
+		r_compile_items.push_back(output_file);
 	}
 
 	StringBuilder cs_icalls_content;
@@ -981,43 +977,27 @@ Error BindingsGenerator::generate_cs_core_project(const String &p_solution_dir,
 	if (err != OK)
 		return err;
 
-	compile_items.push_back(internal_methods_file);
-
-	String guid = CSharpProject::generate_core_api_project(proj_dir, compile_items);
-
-	DotNetSolution::ProjectInfo proj_info;
-	proj_info.guid = guid;
-	proj_info.relpath = String(CORE_API_ASSEMBLY_NAME).plus_file(CORE_API_ASSEMBLY_NAME ".csproj");
-	proj_info.configs.push_back("Debug");
-	proj_info.configs.push_back("Release");
-
-	r_solution.add_new_project(CORE_API_ASSEMBLY_NAME, proj_info);
-
-	_log("The solution and C# project for the Core API was generated successfully\n");
+	r_compile_items.push_back(internal_methods_file);
 
 	return OK;
 }
 
-Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir, DotNetSolution &r_solution) {
-
-	String proj_dir = p_solution_dir.plus_file(EDITOR_API_ASSEMBLY_NAME);
+Error BindingsGenerator::generate_cs_editor_project(const String &p_proj_dir, Vector<String> &r_compile_items) {
 
 	DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 	ERR_FAIL_COND_V(!da, ERR_CANT_CREATE);
 
-	if (!DirAccess::exists(proj_dir)) {
-		Error err = da->make_dir_recursive(proj_dir);
+	if (!DirAccess::exists(p_proj_dir)) {
+		Error err = da->make_dir_recursive(p_proj_dir);
 		ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
 	}
 
-	da->change_dir(proj_dir);
+	da->change_dir(p_proj_dir);
 	da->make_dir("Core");
 	da->make_dir("ObjectType");
 
-	String core_dir = path_join(proj_dir, "Core");
-	String obj_type_dir = path_join(proj_dir, "ObjectType");
-
-	Vector<String> compile_items;
+	String core_dir = path_join(p_proj_dir, "Core");
+	String obj_type_dir = path_join(p_proj_dir, "ObjectType");
 
 	for (OrderedHashMap<StringName, TypeInterface>::Element E = obj_types.front(); E; E = E.next()) {
 		const TypeInterface &itype = E.get();
@@ -1034,7 +1014,7 @@ Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir
 		if (err != OK)
 			return err;
 
-		compile_items.push_back(output_file);
+		r_compile_items.push_back(output_file);
 	}
 
 	StringBuilder cs_icalls_content;
@@ -1077,58 +1057,56 @@ Error BindingsGenerator::generate_cs_editor_project(const String &p_solution_dir
 	if (err != OK)
 		return err;
 
-	compile_items.push_back(internal_methods_file);
-
-	String guid = CSharpProject::generate_editor_api_project(proj_dir, "../" CORE_API_ASSEMBLY_NAME "/" CORE_API_ASSEMBLY_NAME ".csproj", compile_items);
-
-	DotNetSolution::ProjectInfo proj_info;
-	proj_info.guid = guid;
-	proj_info.relpath = String(EDITOR_API_ASSEMBLY_NAME).plus_file(EDITOR_API_ASSEMBLY_NAME ".csproj");
-	proj_info.configs.push_back("Debug");
-	proj_info.configs.push_back("Release");
-
-	r_solution.add_new_project(EDITOR_API_ASSEMBLY_NAME, proj_info);
-
-	_log("The solution and C# project for the Editor API was generated successfully\n");
+	r_compile_items.push_back(internal_methods_file);
 
 	return OK;
 }
 
 Error BindingsGenerator::generate_cs_api(const String &p_output_dir) {
 
+	String output_dir = DirAccess::get_full_path(p_output_dir, DirAccess::ACCESS_FILESYSTEM);
+
 	DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
 	ERR_FAIL_COND_V(!da, ERR_CANT_CREATE);
 
-	if (!DirAccess::exists(p_output_dir)) {
-		Error err = da->make_dir_recursive(p_output_dir);
+	if (!DirAccess::exists(output_dir)) {
+		Error err = da->make_dir_recursive(output_dir);
 		ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
 	}
 
-	DotNetSolution solution(API_SOLUTION_NAME);
+	Error proj_err;
 
-	if (!solution.set_path(p_output_dir))
-		return ERR_FILE_NOT_FOUND;
+	// Generate GodotSharp source files
 
-	Error proj_err;
+	String core_proj_dir = output_dir.plus_file(CORE_API_ASSEMBLY_NAME);
+	Vector<String> core_compile_items;
 
-	proj_err = generate_cs_core_project(p_output_dir, solution);
+	proj_err = generate_cs_core_project(core_proj_dir, core_compile_items);
 	if (proj_err != OK) {
 		ERR_PRINT("Generation of the Core API C# project failed");
 		return proj_err;
 	}
 
-	proj_err = generate_cs_editor_project(p_output_dir, solution);
+	// Generate GodotSharpEditor source files
+
+	String editor_proj_dir = output_dir.plus_file(EDITOR_API_ASSEMBLY_NAME);
+	Vector<String> editor_compile_items;
+
+	proj_err = generate_cs_editor_project(editor_proj_dir, editor_compile_items);
 	if (proj_err != OK) {
 		ERR_PRINT("Generation of the Editor API C# project failed");
 		return proj_err;
 	}
 
-	Error sln_error = solution.save();
-	if (sln_error != OK) {
-		ERR_PRINT("Failed to save API solution");
-		return sln_error;
+	// Generate solution
+
+	if (!CSharpProject::generate_api_solution(output_dir,
+				core_proj_dir, core_compile_items, editor_proj_dir, editor_compile_items)) {
+		return ERR_CANT_CREATE;
 	}
 
+	_log("The solution for the Godot API was generated successfully\n");
+
 	return OK;
 }
 
@@ -1311,8 +1289,9 @@ Error BindingsGenerator::_generate_cs_type(const TypeInterface &itype, const Str
 		output.append(MEMBER_BEGIN "private static Godot.Object singleton;\n");
 		output.append(MEMBER_BEGIN "public static Godot.Object Singleton\n" INDENT2 "{\n" INDENT3
 								   "get\n" INDENT3 "{\n" INDENT4 "if (singleton == null)\n" INDENT5
-								   "singleton = Engine.GetSingleton(" BINDINGS_NATIVE_NAME_FIELD ");\n" INDENT4
-								   "return singleton;\n" INDENT3 "}\n" INDENT2 "}\n");
+								   "singleton = Engine.GetSingleton(typeof(");
+		output.append(itype.proxy_name);
+		output.append(").Name);\n" INDENT4 "return singleton;\n" INDENT3 "}\n" INDENT2 "}\n");
 
 		output.append(MEMBER_BEGIN "private const string " BINDINGS_NATIVE_NAME_FIELD " = \"");
 		output.append(itype.name);
@@ -3018,36 +2997,49 @@ void BindingsGenerator::_initialize() {
 void BindingsGenerator::handle_cmdline_args(const List<String> &p_cmdline_args) {
 
 	const int NUM_OPTIONS = 2;
-	String mono_glue_option = "--generate-mono-glue";
-	String cs_api_option = "--generate-cs-api";
+	String generate_all_glue_option = "--generate-mono-glue";
+	String generate_cs_glue_option = "--generate-mono-cs-glue";
+	String generate_cpp_glue_option = "--generate-mono-cpp-glue";
 
-	String mono_glue_path;
-	String cs_api_path;
+	String glue_dir_path;
+	String cs_dir_path;
+	String cpp_dir_path;
 
 	int options_left = NUM_OPTIONS;
 
 	const List<String>::Element *elem = p_cmdline_args.front();
 
 	while (elem && options_left) {
-		if (elem->get() == mono_glue_option) {
+		if (elem->get() == generate_all_glue_option) {
 			const List<String>::Element *path_elem = elem->next();
 
 			if (path_elem) {
-				mono_glue_path = path_elem->get();
+				glue_dir_path = path_elem->get();
 				elem = elem->next();
 			} else {
-				ERR_PRINTS(mono_glue_option + ": No output directory specified");
+				ERR_PRINTS(generate_all_glue_option + ": No output directory specified (expected path to {GODOT_ROOT}/modules/mono/glue)");
 			}
 
 			--options_left;
-		} else if (elem->get() == cs_api_option) {
+		} else if (elem->get() == generate_cs_glue_option) {
 			const List<String>::Element *path_elem = elem->next();
 
 			if (path_elem) {
-				cs_api_path = path_elem->get();
+				cs_dir_path = path_elem->get();
 				elem = elem->next();
 			} else {
-				ERR_PRINTS(cs_api_option + ": No output directory specified");
+				ERR_PRINTS(generate_cs_glue_option + ": No output directory specified");
+			}
+
+			--options_left;
+		} else if (elem->get() == generate_cpp_glue_option) {
+			const List<String>::Element *path_elem = elem->next();
+
+			if (path_elem) {
+				cpp_dir_path = path_elem->get();
+				elem = elem->next();
+			} else {
+				ERR_PRINTS(generate_cpp_glue_option + ": No output directory specified");
 			}
 
 			--options_left;
@@ -3056,18 +3048,26 @@ void BindingsGenerator::handle_cmdline_args(const List<String> &p_cmdline_args)
 		elem = elem->next();
 	}
 
-	if (mono_glue_path.length() || cs_api_path.length()) {
+	if (glue_dir_path.length() || cs_dir_path.length() || cpp_dir_path.length()) {
 		BindingsGenerator bindings_generator;
 		bindings_generator.set_log_print_enabled(true);
 
-		if (mono_glue_path.length()) {
-			if (bindings_generator.generate_glue(mono_glue_path) != OK)
-				ERR_PRINTS(mono_glue_option + ": Failed to generate mono glue");
+		if (glue_dir_path.length()) {
+			if (bindings_generator.generate_glue(glue_dir_path) != OK)
+				ERR_PRINTS(generate_all_glue_option + ": Failed to generate the C++ glue");
+
+			if (bindings_generator.generate_cs_api(glue_dir_path.plus_file("Managed/Generated")) != OK)
+				ERR_PRINTS(generate_all_glue_option + ": Failed to generate the C# API");
+		}
+
+		if (cs_dir_path.length()) {
+			if (bindings_generator.generate_cs_api(cs_dir_path) != OK)
+				ERR_PRINTS(generate_cs_glue_option + ": Failed to generate the C# API");
 		}
 
-		if (cs_api_path.length()) {
-			if (bindings_generator.generate_cs_api(cs_api_path) != OK)
-				ERR_PRINTS(cs_api_option + ": Failed to generate the C# API");
+		if (cpp_dir_path.length()) {
+			if (bindings_generator.generate_glue(cpp_dir_path) != OK)
+				ERR_PRINTS(generate_cpp_glue_option + ": Failed to generate the C++ glue");
 		}
 
 		// Exit once done
diff --git a/modules/mono/editor/bindings_generator.h b/modules/mono/editor/bindings_generator.h
index ffc73a7e3e..8be51a6c55 100644
--- a/modules/mono/editor/bindings_generator.h
+++ b/modules/mono/editor/bindings_generator.h
@@ -33,7 +33,6 @@
 
 #include "core/class_db.h"
 #include "core/string_builder.h"
-#include "dotnet_solution.h"
 #include "editor/doc/doc_data.h"
 #include "editor/editor_help.h"
 
@@ -614,12 +613,13 @@ class BindingsGenerator {
 	void _initialize();
 
 public:
-	Error generate_cs_core_project(const String &p_solution_dir, DotNetSolution &r_solution);
-	Error generate_cs_editor_project(const String &p_solution_dir, DotNetSolution &r_solution);
+	Error generate_cs_core_project(const String &p_proj_dir, Vector<String> &r_compile_files);
+	Error generate_cs_editor_project(const String &p_proj_dir, Vector<String> &r_compile_items);
 	Error generate_cs_api(const String &p_output_dir);
 	Error generate_glue(const String &p_output_dir);
 
-	void set_log_print_enabled(bool p_enabled) { log_print_enabled = p_enabled; }
+	_FORCE_INLINE_ bool is_log_print_enabled() { return log_print_enabled; }
+	_FORCE_INLINE_ void set_log_print_enabled(bool p_enabled) { log_print_enabled = p_enabled; }
 
 	static uint32_t get_version();
 
diff --git a/modules/mono/editor/csharp_project.cpp b/modules/mono/editor/csharp_project.cpp
index fe79286556..d88b08c646 100644
--- a/modules/mono/editor/csharp_project.cpp
+++ b/modules/mono/editor/csharp_project.cpp
@@ -44,66 +44,54 @@
 
 namespace CSharpProject {
 
-String generate_core_api_project(const String &p_dir, const Vector<String> &p_files) {
-
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
-
-	GDMonoClass *klass = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Project", "ProjectGenerator");
-
-	Variant dir = p_dir;
-	Variant compile_items = p_files;
-	const Variant *args[2] = { &dir, &compile_items };
+bool generate_api_solution_impl(const String &p_solution_dir, const String &p_core_proj_dir, const Vector<String> &p_core_compile_items,
+		const String &p_editor_proj_dir, const Vector<String> &p_editor_compile_items,
+		GDMonoAssembly *p_tools_project_editor_assembly) {
+
+	GDMonoClass *klass = p_tools_project_editor_assembly->get_class("GodotTools.ProjectEditor", "ApiSolutionGenerator");
+
+	Variant solution_dir = p_solution_dir;
+	Variant core_proj_dir = p_core_proj_dir;
+	Variant core_compile_items = p_core_compile_items;
+	Variant editor_proj_dir = p_editor_proj_dir;
+	Variant editor_compile_items = p_editor_compile_items;
+	const Variant *args[5] = { &solution_dir, &core_proj_dir, &core_compile_items, &editor_proj_dir, &editor_compile_items };
 	MonoException *exc = NULL;
-	MonoObject *ret = klass->get_method("GenCoreApiProject", 2)->invoke(NULL, args, &exc);
+	klass->get_method("GenerateApiSolution", 5)->invoke(NULL, args, &exc);
 
 	if (exc) {
 		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL_V(String());
+		ERR_FAIL_V(false);
 	}
 
-	return ret ? GDMonoMarshal::mono_string_to_godot((MonoString *)ret) : String();
+	return true;
 }
 
-String generate_editor_api_project(const String &p_dir, const String &p_core_proj_path, const Vector<String> &p_files) {
-
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
-
-	GDMonoClass *klass = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Project", "ProjectGenerator");
-
-	Variant dir = p_dir;
-	Variant core_proj_path = p_core_proj_path;
-	Variant compile_items = p_files;
-	const Variant *args[3] = { &dir, &core_proj_path, &compile_items };
-	MonoException *exc = NULL;
-	MonoObject *ret = klass->get_method("GenEditorApiProject", 3)->invoke(NULL, args, &exc);
-
-	if (exc) {
-		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL_V(String());
-	}
-
-	return ret ? GDMonoMarshal::mono_string_to_godot((MonoString *)ret) : String();
-}
+bool generate_api_solution(const String &p_solution_dir, const String &p_core_proj_dir, const Vector<String> &p_core_compile_items,
+		const String &p_editor_proj_dir, const Vector<String> &p_editor_compile_items) {
 
-String generate_game_project(const String &p_dir, const String &p_name, const Vector<String> &p_files) {
+	if (GDMono::get_singleton()->get_tools_project_editor_assembly()) {
+		return generate_api_solution_impl(p_solution_dir, p_core_proj_dir, p_core_compile_items,
+				p_editor_proj_dir, p_editor_compile_items,
+				GDMono::get_singleton()->get_tools_project_editor_assembly());
+	} else {
+		MonoDomain *temp_domain = GDMonoUtils::create_domain("GodotEngine.ApiSolutionGenerationDomain");
+		CRASH_COND(temp_domain == NULL);
+		_GDMONO_SCOPE_EXIT_DOMAIN_UNLOAD_(temp_domain);
 
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
+		_GDMONO_SCOPE_DOMAIN_(temp_domain);
 
-	GDMonoClass *klass = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Project", "ProjectGenerator");
+		GDMonoAssembly *tools_project_editor_assembly = NULL;
 
-	Variant dir = p_dir;
-	Variant name = p_name;
-	Variant compile_items = p_files;
-	const Variant *args[3] = { &dir, &name, &compile_items };
-	MonoException *exc = NULL;
-	MonoObject *ret = klass->get_method("GenGameProject", 3)->invoke(NULL, args, &exc);
+		if (!GDMono::get_singleton()->load_assembly("GodotTools.ProjectEditor", &tools_project_editor_assembly)) {
+			ERR_EXPLAIN("Failed to load assembly: 'GodotTools.ProjectEditor'");
+			ERR_FAIL_V(false);
+		}
 
-	if (exc) {
-		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL_V(String());
+		return generate_api_solution_impl(p_solution_dir, p_core_proj_dir, p_core_compile_items,
+				p_editor_proj_dir, p_editor_compile_items,
+				tools_project_editor_assembly);
 	}
-
-	return ret ? GDMonoMarshal::mono_string_to_godot((MonoString *)ret) : String();
 }
 
 void add_item(const String &p_project_path, const String &p_item_type, const String &p_include) {
@@ -111,9 +99,9 @@ void add_item(const String &p_project_path, const String &p_item_type, const Str
 	if (!GLOBAL_DEF("mono/project/auto_update_project", true))
 		return;
 
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
+	GDMonoAssembly *tools_project_editor_assembly = GDMono::get_singleton()->get_tools_project_editor_assembly();
 
-	GDMonoClass *klass = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Project", "ProjectUtils");
+	GDMonoClass *klass = tools_project_editor_assembly->get_class("GodotTools.ProjectEditor", "ProjectUtils");
 
 	Variant project_path = p_project_path;
 	Variant item_type = p_item_type;
@@ -128,126 +116,4 @@ void add_item(const String &p_project_path, const String &p_item_type, const Str
 	}
 }
 
-Error generate_scripts_metadata(const String &p_project_path, const String &p_output_path) {
-
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
-
-	if (FileAccess::exists(p_output_path)) {
-		DirAccessRef da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-		Error rm_err = da->remove(p_output_path);
-
-		ERR_EXPLAIN("Failed to remove old scripts metadata file");
-		ERR_FAIL_COND_V(rm_err != OK, rm_err);
-	}
-
-	GDMonoClass *project_utils = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Project", "ProjectUtils");
-
-	void *args[2] = {
-		GDMonoMarshal::mono_string_from_godot(p_project_path),
-		GDMonoMarshal::mono_string_from_godot("Compile")
-	};
-
-	MonoException *exc = NULL;
-	MonoArray *ret = (MonoArray *)project_utils->get_method("GetIncludeFiles", 2)->invoke_raw(NULL, args, &exc);
-
-	if (exc) {
-		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL_V(FAILED);
-	}
-
-	PoolStringArray project_files = GDMonoMarshal::mono_array_to_PoolStringArray(ret);
-	PoolStringArray::Read r = project_files.read();
-
-	Dictionary old_dict = CSharpLanguage::get_singleton()->get_scripts_metadata_or_nothing();
-	Dictionary new_dict;
-
-	for (int i = 0; i < project_files.size(); i++) {
-		const String &project_file = ("res://" + r[i]).simplify_path();
-
-		uint64_t modified_time = FileAccess::get_modified_time(project_file);
-
-		const Variant *old_file_var = old_dict.getptr(project_file);
-		if (old_file_var) {
-			Dictionary old_file_dict = old_file_var->operator Dictionary();
-
-			if (old_file_dict["modified_time"].operator uint64_t() == modified_time) {
-				// No changes so no need to parse again
-				new_dict[project_file] = old_file_dict;
-				continue;
-			}
-		}
-
-		ScriptClassParser scp;
-		Error err = scp.parse_file(project_file);
-		if (err != OK) {
-			ERR_PRINTS("Parse error: " + scp.get_error());
-			ERR_EXPLAIN("Failed to determine namespace and class for script: " + project_file);
-			ERR_FAIL_V(err);
-		}
-
-		Vector<ScriptClassParser::ClassDecl> classes = scp.get_classes();
-
-		bool found = false;
-		Dictionary class_dict;
-
-		String search_name = project_file.get_file().get_basename();
-
-		for (int j = 0; j < classes.size(); j++) {
-			const ScriptClassParser::ClassDecl &class_decl = classes[j];
-
-			if (class_decl.base.size() == 0)
-				continue; // Does not inherit nor implement anything, so it can't be a script class
-
-			String class_cmp;
-
-			if (class_decl.nested) {
-				class_cmp = class_decl.name.get_slice(".", class_decl.name.get_slice_count(".") - 1);
-			} else {
-				class_cmp = class_decl.name;
-			}
-
-			if (class_cmp != search_name)
-				continue;
-
-			class_dict["namespace"] = class_decl.namespace_;
-			class_dict["class_name"] = class_decl.name;
-			class_dict["nested"] = class_decl.nested;
-
-			found = true;
-			break;
-		}
-
-		if (found) {
-			Dictionary file_dict;
-			file_dict["modified_time"] = modified_time;
-			file_dict["class"] = class_dict;
-			new_dict[project_file] = file_dict;
-		}
-	}
-
-	if (new_dict.size()) {
-		String json = JSON::print(new_dict, "", false);
-
-		String base_dir = p_output_path.get_base_dir();
-
-		if (!DirAccess::exists(base_dir)) {
-			DirAccessRef da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-
-			Error err = da->make_dir_recursive(base_dir);
-			ERR_FAIL_COND_V(err != OK, ERR_CANT_CREATE);
-		}
-
-		Error ferr;
-		FileAccess *f = FileAccess::open(p_output_path, FileAccess::WRITE, &ferr);
-		ERR_EXPLAIN("Cannot open file for writing: " + p_output_path);
-		ERR_FAIL_COND_V(ferr != OK, ferr);
-		f->store_string(json);
-		f->flush();
-		f->close();
-		memdelete(f);
-	}
-
-	return OK;
-}
-
 } // namespace CSharpProject
diff --git a/modules/mono/editor/csharp_project.h b/modules/mono/editor/csharp_project.h
index b08c9090c7..b42762cea2 100644
--- a/modules/mono/editor/csharp_project.h
+++ b/modules/mono/editor/csharp_project.h
@@ -35,14 +35,11 @@
 
 namespace CSharpProject {
 
-String generate_core_api_project(const String &p_dir, const Vector<String> &p_files = Vector<String>());
-String generate_editor_api_project(const String &p_dir, const String &p_core_proj_path, const Vector<String> &p_files = Vector<String>());
-String generate_game_project(const String &p_dir, const String &p_name, const Vector<String> &p_files = Vector<String>());
+bool generate_api_solution(const String &p_solution_dir, const String &p_core_proj_dir, const Vector<String> &p_core_compile_items,
+		const String &p_editor_proj_dir, const Vector<String> &p_editor_compile_items);
 
 void add_item(const String &p_project_path, const String &p_item_type, const String &p_include);
 
-Error generate_scripts_metadata(const String &p_project_path, const String &p_output_path);
-
 } // namespace CSharpProject
 
 #endif // CSHARP_PROJECT_H
diff --git a/modules/mono/editor/dotnet_solution.cpp b/modules/mono/editor/dotnet_solution.cpp
deleted file mode 100644
index 324752cafc..0000000000
--- a/modules/mono/editor/dotnet_solution.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-/*************************************************************************/
-/*  dotnet_solution.cpp                                                  */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "dotnet_solution.h"
-
-#include "core/os/dir_access.h"
-#include "core/os/file_access.h"
-
-#include "../utils/path_utils.h"
-#include "../utils/string_utils.h"
-#include "csharp_project.h"
-
-#define SOLUTION_TEMPLATE                                             \
-	"Microsoft Visual Studio Solution File, Format Version 12.00\n"   \
-	"# Visual Studio 2012\n"                                          \
-	"%0\n"                                                            \
-	"Global\n"                                                        \
-	"\tGlobalSection(SolutionConfigurationPlatforms) = preSolution\n" \
-	"%1\n"                                                            \
-	"\tEndGlobalSection\n"                                            \
-	"\tGlobalSection(ProjectConfigurationPlatforms) = postSolution\n" \
-	"%2\n"                                                            \
-	"\tEndGlobalSection\n"                                            \
-	"EndGlobal\n"
-
-#define PROJECT_DECLARATION "Project(\"{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}\") = \"%0\", \"%1\", \"{%2}\"\nEndProject"
-
-#define SOLUTION_PLATFORMS_CONFIG "\t%0|Any CPU = %0|Any CPU"
-
-#define PROJECT_PLATFORMS_CONFIG                   \
-	"\t\t{%0}.%1|Any CPU.ActiveCfg = %1|Any CPU\n" \
-	"\t\t{%0}.%1|Any CPU.Build.0 = %1|Any CPU"
-
-void DotNetSolution::add_new_project(const String &p_name, const ProjectInfo &p_project_info) {
-	projects[p_name] = p_project_info;
-}
-
-bool DotNetSolution::has_project(const String &p_name) const {
-	return projects.find(p_name) != NULL;
-}
-
-const DotNetSolution::ProjectInfo &DotNetSolution::get_project_info(const String &p_name) const {
-	return projects[p_name];
-}
-
-bool DotNetSolution::remove_project(const String &p_name) {
-	return projects.erase(p_name);
-}
-
-Error DotNetSolution::save() {
-	bool dir_exists = DirAccess::exists(path);
-	ERR_EXPLAIN("The directory does not exist.");
-	ERR_FAIL_COND_V(!dir_exists, ERR_FILE_NOT_FOUND);
-
-	String projs_decl;
-	String sln_platform_cfg;
-	String proj_platform_cfg;
-
-	for (Map<String, ProjectInfo>::Element *E = projects.front(); E; E = E->next()) {
-		const String &name = E->key();
-		const ProjectInfo &proj_info = E->value();
-
-		bool is_front = E == projects.front();
-
-		if (!is_front)
-			projs_decl += "\n";
-
-		projs_decl += sformat(PROJECT_DECLARATION, name, proj_info.relpath.replace("/", "\\"), proj_info.guid);
-
-		for (int i = 0; i < proj_info.configs.size(); i++) {
-			const String &config = proj_info.configs[i];
-
-			if (i != 0 || !is_front) {
-				sln_platform_cfg += "\n";
-				proj_platform_cfg += "\n";
-			}
-
-			sln_platform_cfg += sformat(SOLUTION_PLATFORMS_CONFIG, config);
-			proj_platform_cfg += sformat(PROJECT_PLATFORMS_CONFIG, proj_info.guid, config);
-		}
-	}
-
-	String content = sformat(SOLUTION_TEMPLATE, projs_decl, sln_platform_cfg, proj_platform_cfg);
-
-	FileAccess *file = FileAccess::open(path_join(path, name + ".sln"), FileAccess::WRITE);
-	ERR_FAIL_NULL_V(file, ERR_FILE_CANT_WRITE);
-	file->store_string(content);
-	file->close();
-	memdelete(file);
-
-	return OK;
-}
-
-bool DotNetSolution::set_path(const String &p_existing_path) {
-	if (p_existing_path.is_abs_path()) {
-		path = p_existing_path;
-	} else {
-		String abspath;
-		if (!rel_path_to_abs(p_existing_path, abspath))
-			return false;
-		path = abspath;
-	}
-
-	return true;
-}
-
-String DotNetSolution::get_path() {
-	return path;
-}
-
-DotNetSolution::DotNetSolution(const String &p_name) {
-	name = p_name;
-}
diff --git a/modules/mono/editor/dotnet_solution.h b/modules/mono/editor/dotnet_solution.h
deleted file mode 100644
index 18933364fa..0000000000
--- a/modules/mono/editor/dotnet_solution.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*************************************************************************/
-/*  dotnet_solution.h                                                    */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef NET_SOLUTION_H
-#define NET_SOLUTION_H
-
-#include "core/map.h"
-#include "core/ustring.h"
-
-struct DotNetSolution {
-	String name;
-
-	struct ProjectInfo {
-		String guid;
-		String relpath; // Must be relative to the solution directory
-		Vector<String> configs;
-	};
-
-	void add_new_project(const String &p_name, const ProjectInfo &p_project_info);
-	bool has_project(const String &p_name) const;
-	const ProjectInfo &get_project_info(const String &p_name) const;
-	bool remove_project(const String &p_name);
-
-	Error save();
-
-	bool set_path(const String &p_existing_path);
-	String get_path();
-
-	DotNetSolution(const String &p_name);
-
-private:
-	String path;
-	Map<String, ProjectInfo> projects;
-};
-
-#endif // NET_SOLUTION_H
diff --git a/modules/mono/editor/editor_internal_calls.cpp b/modules/mono/editor/editor_internal_calls.cpp
new file mode 100644
index 0000000000..a3b5b450ef
--- /dev/null
+++ b/modules/mono/editor/editor_internal_calls.cpp
@@ -0,0 +1,429 @@
+/*************************************************************************/
+/*  editor_internal_calls.cpp                                            */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "editor_internal_calls.h"
+
+#include "core/message_queue.h"
+#include "core/os/os.h"
+#include "core/version.h"
+#include "editor/editor_node.h"
+#include "editor/plugins/script_editor_plugin.h"
+#include "editor/script_editor_debugger.h"
+#include "main/main.h"
+
+#include "../csharp_script.h"
+#include "../glue/cs_glue_version.gen.h"
+#include "../godotsharp_dirs.h"
+#include "../mono_gd/gd_mono_marshal.h"
+#include "../utils/osx_utils.h"
+#include "bindings_generator.h"
+#include "godotsharp_export.h"
+#include "script_class_parser.h"
+
+MonoString *godot_icall_GodotSharpDirs_ResDataDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_data_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResMetadataDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_metadata_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResAssembliesBaseDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_assemblies_base_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResAssembliesDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_assemblies_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResConfigDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_config_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResTempDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_temp_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResTempAssembliesBaseDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_temp_assemblies_base_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_ResTempAssembliesDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_res_temp_assemblies_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_MonoUserDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_mono_user_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_MonoLogsDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_mono_logs_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_MonoSolutionsDir() {
+#ifdef TOOLS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_mono_solutions_dir());
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_GodotSharpDirs_BuildLogsDirs() {
+#ifdef TOOLS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_build_logs_dir());
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_GodotSharpDirs_ProjectSlnPath() {
+#ifdef TOOLS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_project_sln_path());
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_GodotSharpDirs_ProjectCsProjPath() {
+#ifdef TOOLS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_project_csproj_path());
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_GodotSharpDirs_DataEditorToolsDir() {
+#ifdef TOOLS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_data_editor_tools_dir());
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_GodotSharpDirs_DataEditorPrebuiltApiDir() {
+#ifdef TOOLS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_data_editor_prebuilt_api_dir());
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_GodotSharpDirs_DataMonoEtcDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_data_mono_etc_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_DataMonoLibDir() {
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_data_mono_lib_dir());
+}
+
+MonoString *godot_icall_GodotSharpDirs_DataMonoBinDir() {
+#ifdef WINDOWS_ENABLED
+	return GDMonoMarshal::mono_string_from_godot(GodotSharpDirs::get_data_mono_bin_dir());
+#else
+	return NULL;
+#endif
+}
+
+void godot_icall_EditorProgress_Create(MonoString *p_task, MonoString *p_label, int32_t p_amount, MonoBoolean p_can_cancel) {
+	String task = GDMonoMarshal::mono_string_to_godot(p_task);
+	String label = GDMonoMarshal::mono_string_to_godot(p_label);
+	EditorNode::progress_add_task(task, label, p_amount, (bool)p_can_cancel);
+}
+
+void godot_icall_EditorProgress_Dispose(MonoString *p_task) {
+	String task = GDMonoMarshal::mono_string_to_godot(p_task);
+	EditorNode::progress_end_task(task);
+}
+
+MonoBoolean godot_icall_EditorProgress_Step(MonoString *p_task, MonoString *p_state, int32_t p_step, MonoBoolean p_force_refresh) {
+	String task = GDMonoMarshal::mono_string_to_godot(p_task);
+	String state = GDMonoMarshal::mono_string_to_godot(p_state);
+	return EditorNode::progress_task_step(task, state, p_step, (bool)p_force_refresh);
+}
+
+BindingsGenerator *godot_icall_BindingsGenerator_Ctor() {
+	return memnew(BindingsGenerator);
+}
+
+void godot_icall_BindingsGenerator_Dtor(BindingsGenerator *p_handle) {
+	memdelete(p_handle);
+}
+
+MonoBoolean godot_icall_BindingsGenerator_LogPrintEnabled(BindingsGenerator *p_handle) {
+	return p_handle->is_log_print_enabled();
+}
+
+void godot_icall_BindingsGenerator_SetLogPrintEnabled(BindingsGenerator p_handle, MonoBoolean p_enabled) {
+	p_handle.set_log_print_enabled(p_enabled);
+}
+
+int32_t godot_icall_BindingsGenerator_GenerateCsApi(BindingsGenerator *p_handle, MonoString *p_output_dir) {
+	String output_dir = GDMonoMarshal::mono_string_to_godot(p_output_dir);
+	return p_handle->generate_cs_api(output_dir);
+}
+
+uint32_t godot_icall_BindingsGenerator_Version() {
+	return BindingsGenerator::get_version();
+}
+
+uint32_t godot_icall_BindingsGenerator_CsGlueVersion() {
+	return CS_GLUE_VERSION;
+}
+
+int32_t godot_icall_ScriptClassParser_ParseFile(MonoString *p_filepath, MonoObject *p_classes) {
+	String filepath = GDMonoMarshal::mono_string_to_godot(p_filepath);
+
+	ScriptClassParser scp;
+	Error err = scp.parse_file(filepath);
+	if (err == OK) {
+		Array classes = GDMonoMarshal::mono_object_to_variant(p_classes);
+		const Vector<ScriptClassParser::ClassDecl> &class_decls = scp.get_classes();
+
+		for (int i = 0; i < class_decls.size(); i++) {
+			const ScriptClassParser::ClassDecl &classDecl = class_decls[i];
+
+			Dictionary classDeclDict;
+			classDeclDict["name"] = classDecl.name;
+			classDeclDict["namespace"] = classDecl.namespace_;
+			classDeclDict["nested"] = classDecl.nested;
+			classDeclDict["base_count"] = classDecl.base.size();
+			classes.push_back(classDeclDict);
+		}
+	}
+	return err;
+}
+
+uint32_t godot_icall_GodotSharpExport_GetExportedAssemblyDependencies(MonoString *p_project_dll_name, MonoString *p_project_dll_src_path,
+		MonoString *p_build_config, MonoString *p_custom_lib_dir, MonoObject *r_dependencies) {
+	String project_dll_name = GDMonoMarshal::mono_string_to_godot(p_project_dll_name);
+	String project_dll_src_path = GDMonoMarshal::mono_string_to_godot(p_project_dll_src_path);
+	String build_config = GDMonoMarshal::mono_string_to_godot(p_build_config);
+	String custom_lib_dir = GDMonoMarshal::mono_string_to_godot(p_custom_lib_dir);
+	Dictionary dependencies = GDMonoMarshal::mono_object_to_variant(r_dependencies);
+
+	return GodotSharpExport::get_exported_assembly_dependencies(project_dll_name, project_dll_src_path, build_config, custom_lib_dir, dependencies);
+}
+
+float godot_icall_Internal_EditorScale() {
+	return EDSCALE;
+}
+
+MonoObject *godot_icall_Internal_GlobalDef(MonoString *p_setting, MonoObject *p_default_value, MonoBoolean p_restart_if_changed) {
+	String setting = GDMonoMarshal::mono_string_to_godot(p_setting);
+	Variant default_value = GDMonoMarshal::mono_object_to_variant(p_default_value);
+	Variant result = _GLOBAL_DEF(setting, default_value, (bool)p_restart_if_changed);
+	return GDMonoMarshal::variant_to_mono_object(result);
+}
+
+MonoObject *godot_icall_Internal_EditorDef(MonoString *p_setting, MonoObject *p_default_value, MonoBoolean p_restart_if_changed) {
+	String setting = GDMonoMarshal::mono_string_to_godot(p_setting);
+	Variant default_value = GDMonoMarshal::mono_object_to_variant(p_default_value);
+	Variant result = _GLOBAL_DEF(setting, default_value, (bool)p_restart_if_changed);
+	return GDMonoMarshal::variant_to_mono_object(result);
+}
+
+MonoString *godot_icall_Internal_FullTemplatesDir() {
+	String full_templates_dir = EditorSettings::get_singleton()->get_templates_dir().plus_file(VERSION_FULL_CONFIG);
+	return GDMonoMarshal::mono_string_from_godot(full_templates_dir);
+}
+
+MonoString *godot_icall_Internal_SimplifyGodotPath(MonoString *p_path) {
+	String path = GDMonoMarshal::mono_string_to_godot(p_path);
+	return GDMonoMarshal::mono_string_from_godot(path.simplify_path());
+}
+
+MonoBoolean godot_icall_Internal_IsOsxAppBundleInstalled(MonoString *p_bundle_id) {
+#ifdef OSX_ENABLED
+	String bundle_id = GDMonoMarshal::mono_string_to_godot(p_bundle_id);
+	return (MonoBoolean)osx_is_app_bundle_installed;
+#else
+	(void)p_bundle_id; // UNUSED
+	return (MonoBoolean) false;
+#endif
+}
+
+MonoBoolean godot_icall_Internal_MetadataIsApiAssemblyInvalidated(int32_t p_api_type) {
+	return GDMono::get_singleton()->metadata_is_api_assembly_invalidated((APIAssembly::Type)p_api_type);
+}
+
+void godot_icall_Internal_MetadataSetApiAssemblyInvalidated(int32_t p_api_type, MonoBoolean p_invalidated) {
+	GDMono::get_singleton()->metadata_set_api_assembly_invalidated((APIAssembly::Type)p_api_type, (bool)p_invalidated);
+}
+
+MonoBoolean godot_icall_Internal_IsMessageQueueFlushing() {
+	return (MonoBoolean)MessageQueue::get_singleton()->is_flushing();
+}
+
+MonoBoolean godot_icall_Internal_GodotIs32Bits() {
+	return sizeof(void *) == 4;
+}
+
+MonoBoolean godot_icall_Internal_GodotIsRealTDouble() {
+#ifdef REAL_T_IS_DOUBLE
+	return (MonoBoolean) true;
+#else
+	return (MonoBoolean) false;
+#endif
+}
+
+void godot_icall_Internal_GodotMainIteration() {
+	Main::iteration();
+}
+
+uint64_t godot_icall_Internal_GetCoreApiHash() {
+	return ClassDB::get_api_hash(ClassDB::API_CORE);
+}
+
+uint64_t godot_icall_Internal_GetEditorApiHash() {
+	return ClassDB::get_api_hash(ClassDB::API_EDITOR);
+}
+
+MonoBoolean godot_icall_Internal_IsAssembliesReloadingNeeded() {
+#ifdef GD_MONO_HOT_RELOAD
+	return (MonoBoolean)CSharpLanguage::get_singleton()->is_assembly_reloading_needed();
+#else
+	return (MonoBoolean) false;
+#endif
+}
+
+void godot_icall_Internal_ReloadAssemblies(MonoBoolean p_soft_reload) {
+#ifdef GD_MONO_HOT_RELOAD
+	_GodotSharp::get_singleton()->call_deferred("_reload_assemblies", (bool)p_soft_reload);
+#endif
+}
+
+void godot_icall_Internal_ScriptEditorDebuggerReloadScripts() {
+	ScriptEditor::get_singleton()->get_debugger()->reload_scripts();
+}
+
+MonoBoolean godot_icall_Internal_ScriptEditorEdit(MonoObject *p_resource, int32_t p_line, int32_t p_col, MonoBoolean p_grab_focus) {
+	Ref<Resource> resource = GDMonoMarshal::mono_object_to_variant(p_resource);
+	return (MonoBoolean)ScriptEditor::get_singleton()->edit(resource, p_line, p_col, (bool)p_grab_focus);
+}
+
+void godot_icall_Internal_EditorNodeShowScriptScreen() {
+	EditorNode::get_singleton()->call("_editor_select", EditorNode::EDITOR_SCRIPT);
+}
+
+MonoObject *godot_icall_Internal_GetScriptsMetadataOrNothing(MonoReflectionType *p_dict_reftype) {
+	Dictionary maybe_metadata = CSharpLanguage::get_singleton()->get_scripts_metadata_or_nothing();
+
+	MonoType *dict_type = mono_reflection_type_get_type(p_dict_reftype);
+
+	uint32_t type_encoding = mono_type_get_type(dict_type);
+	MonoClass *type_class_raw = mono_class_from_mono_type(dict_type);
+	GDMonoClass *type_class = GDMono::get_singleton()->get_class(type_class_raw);
+
+	return GDMonoMarshal::variant_to_mono_object(maybe_metadata, ManagedType(type_encoding, type_class));
+}
+
+MonoString *godot_icall_Internal_MonoWindowsInstallRoot() {
+#ifdef WINDOWS_ENABLED
+	String install_root_dir = GDMono::get_singleton()->get_mono_reg_info().install_root_dir;
+	return GDMonoMarshal::mono_string_from_godot(install_root_dir);
+#else
+	return NULL;
+#endif
+}
+
+MonoString *godot_icall_Utils_OS_GetPlatformName() {
+	String os_name = OS::get_singleton()->get_name();
+	return GDMonoMarshal::mono_string_from_godot(os_name);
+}
+
+void register_editor_internal_calls() {
+
+	// GodotSharpDirs
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResDataDir", (void *)godot_icall_GodotSharpDirs_ResDataDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResMetadataDir", (void *)godot_icall_GodotSharpDirs_ResMetadataDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResAssembliesBaseDir", (void *)godot_icall_GodotSharpDirs_ResAssembliesBaseDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResAssembliesDir", (void *)godot_icall_GodotSharpDirs_ResAssembliesDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResConfigDir", (void *)godot_icall_GodotSharpDirs_ResConfigDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResTempDir", (void *)godot_icall_GodotSharpDirs_ResTempDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResTempAssembliesBaseDir", (void *)godot_icall_GodotSharpDirs_ResTempAssembliesBaseDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ResTempAssembliesDir", (void *)godot_icall_GodotSharpDirs_ResTempAssembliesDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_MonoUserDir", (void *)godot_icall_GodotSharpDirs_MonoUserDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_MonoLogsDir", (void *)godot_icall_GodotSharpDirs_MonoLogsDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_MonoSolutionsDir", (void *)godot_icall_GodotSharpDirs_MonoSolutionsDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_BuildLogsDirs", (void *)godot_icall_GodotSharpDirs_BuildLogsDirs);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ProjectSlnPath", (void *)godot_icall_GodotSharpDirs_ProjectSlnPath);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_ProjectCsProjPath", (void *)godot_icall_GodotSharpDirs_ProjectCsProjPath);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_DataEditorToolsDir", (void *)godot_icall_GodotSharpDirs_DataEditorToolsDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_DataEditorPrebuiltApiDir", (void *)godot_icall_GodotSharpDirs_DataEditorPrebuiltApiDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_DataMonoEtcDir", (void *)godot_icall_GodotSharpDirs_DataMonoEtcDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_DataMonoLibDir", (void *)godot_icall_GodotSharpDirs_DataMonoLibDir);
+	mono_add_internal_call("GodotTools.Internals.GodotSharpDirs::internal_DataMonoBinDir", (void *)godot_icall_GodotSharpDirs_DataMonoBinDir);
+
+	// EditorProgress
+	mono_add_internal_call("GodotTools.Internals.EditorProgress::internal_Create", (void *)godot_icall_EditorProgress_Create);
+	mono_add_internal_call("GodotTools.Internals.EditorProgress::internal_Dispose", (void *)godot_icall_EditorProgress_Dispose);
+	mono_add_internal_call("GodotTools.Internals.EditorProgress::internal_Step", (void *)godot_icall_EditorProgress_Step);
+
+	// BiningsGenerator
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_Ctor", (void *)godot_icall_BindingsGenerator_Ctor);
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_Dtor", (void *)godot_icall_BindingsGenerator_Dtor);
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_LogPrintEnabled", (void *)godot_icall_BindingsGenerator_LogPrintEnabled);
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_SetLogPrintEnabled", (void *)godot_icall_BindingsGenerator_SetLogPrintEnabled);
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_GenerateCsApi", (void *)godot_icall_BindingsGenerator_GenerateCsApi);
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_Version", (void *)godot_icall_BindingsGenerator_Version);
+	mono_add_internal_call("GodotTools.Internals.BindingsGenerator::internal_CsGlueVersion", (void *)godot_icall_BindingsGenerator_CsGlueVersion);
+
+	// ScriptClassParser
+	mono_add_internal_call("GodotTools.Internals.ScriptClassParser::internal_ParseFile", (void *)godot_icall_ScriptClassParser_ParseFile);
+
+	// GodotSharpExport
+	mono_add_internal_call("GodotTools.GodotSharpExport::internal_GetExportedAssemblyDependencies", (void *)godot_icall_GodotSharpExport_GetExportedAssemblyDependencies);
+
+	// Internals
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_EditorScale", (void *)godot_icall_Internal_EditorScale);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GlobalDef", (void *)godot_icall_Internal_GlobalDef);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_EditorDef", (void *)godot_icall_Internal_EditorDef);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_FullTemplatesDir", (void *)godot_icall_Internal_FullTemplatesDir);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_SimplifyGodotPath", (void *)godot_icall_Internal_SimplifyGodotPath);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_IsOsxAppBundleInstalled", (void *)godot_icall_Internal_IsOsxAppBundleInstalled);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_MetadataIsApiAssemblyInvalidated", (void *)godot_icall_Internal_MetadataIsApiAssemblyInvalidated);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_MetadataSetApiAssemblyInvalidated", (void *)godot_icall_Internal_MetadataSetApiAssemblyInvalidated);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_IsMessageQueueFlushing", (void *)godot_icall_Internal_IsMessageQueueFlushing);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GodotIs32Bits", (void *)godot_icall_Internal_GodotIs32Bits);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GodotIsRealTDouble", (void *)godot_icall_Internal_GodotIsRealTDouble);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GodotMainIteration", (void *)godot_icall_Internal_GodotMainIteration);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GetCoreApiHash", (void *)godot_icall_Internal_GetCoreApiHash);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GetEditorApiHash", (void *)godot_icall_Internal_GetEditorApiHash);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_IsAssembliesReloadingNeeded", (void *)godot_icall_Internal_IsAssembliesReloadingNeeded);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_ReloadAssemblies", (void *)godot_icall_Internal_ReloadAssemblies);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_ScriptEditorDebuggerReloadScripts", (void *)godot_icall_Internal_ScriptEditorDebuggerReloadScripts);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_ScriptEditorEdit", (void *)godot_icall_Internal_ScriptEditorEdit);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_EditorNodeShowScriptScreen", (void *)godot_icall_Internal_EditorNodeShowScriptScreen);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_GetScriptsMetadataOrNothing", (void *)godot_icall_Internal_GetScriptsMetadataOrNothing);
+	mono_add_internal_call("GodotTools.Internals.Internal::internal_MonoWindowsInstallRoot", (void *)godot_icall_Internal_MonoWindowsInstallRoot);
+
+	// Utils.OS
+	mono_add_internal_call("GodotTools.Utils.OS::GetPlatformName", (void *)godot_icall_Utils_OS_GetPlatformName);
+}
diff --git a/modules/mono/editor/mono_build_info.h b/modules/mono/editor/editor_internal_calls.h
index b0ae2ed52e..1682da66e5 100644
--- a/modules/mono/editor/mono_build_info.h
+++ b/modules/mono/editor/editor_internal_calls.h
@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  mono_build_info.h                                                    */
+/*  editor_internal_calls.h                                              */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,28 +28,9 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef MONO_BUILD_INFO_H
-#define MONO_BUILD_INFO_H
+#ifndef EDITOR_INTERNAL_CALL_H
+#define EDITOR_INTERNAL_CALL_H
 
-#include "core/ustring.h"
-#include "core/vector.h"
+void register_editor_internal_calls();
 
-struct MonoBuildInfo {
-
-	struct Hasher {
-		static uint32_t hash(const MonoBuildInfo &p_key);
-	};
-
-	String solution;
-	String configuration;
-	Vector<String> custom_props;
-
-	bool operator==(const MonoBuildInfo &p_b) const;
-
-	String get_log_dirpath();
-
-	MonoBuildInfo();
-	MonoBuildInfo(const String &p_solution, const String &p_config);
-};
-
-#endif // MONO_BUILD_INFO_H
+#endif // EDITOR_INTERNAL_CALL_H
diff --git a/modules/mono/editor/godotsharp_builds.cpp b/modules/mono/editor/godotsharp_builds.cpp
deleted file mode 100644
index a962d6df27..0000000000
--- a/modules/mono/editor/godotsharp_builds.cpp
+++ /dev/null
@@ -1,632 +0,0 @@
-/*************************************************************************/
-/*  godotsharp_builds.cpp                                                */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "godotsharp_builds.h"
-
-#include "core/os/os.h"
-#include "core/vector.h"
-#include "main/main.h"
-
-#include "../glue/cs_glue_version.gen.h"
-#include "../godotsharp_dirs.h"
-#include "../mono_gd/gd_mono_class.h"
-#include "../mono_gd/gd_mono_marshal.h"
-#include "../utils/path_utils.h"
-#include "bindings_generator.h"
-#include "csharp_project.h"
-#include "godotsharp_editor.h"
-
-#define PROP_NAME_MSBUILD_MONO "MSBuild (Mono)"
-#define PROP_NAME_MSBUILD_VS "MSBuild (VS Build Tools)"
-#define PROP_NAME_XBUILD "xbuild (Deprecated)"
-
-void godot_icall_BuildInstance_ExitCallback(MonoString *p_solution, MonoString *p_config, int p_exit_code) {
-
-	String solution = GDMonoMarshal::mono_string_to_godot(p_solution);
-	String config = GDMonoMarshal::mono_string_to_godot(p_config);
-	GodotSharpBuilds::get_singleton()->build_exit_callback(MonoBuildInfo(solution, config), p_exit_code);
-}
-
-static Vector<const char *> _get_msbuild_hint_dirs() {
-	Vector<const char *> ret;
-#ifdef OSX_ENABLED
-	ret.push_back("/Library/Frameworks/Mono.framework/Versions/Current/bin/");
-	ret.push_back("/usr/local/var/homebrew/linked/mono/bin/");
-#endif
-	ret.push_back("/opt/novell/mono/bin/");
-	return ret;
-}
-
-#ifdef UNIX_ENABLED
-String _find_build_engine_on_unix(const String &p_name) {
-	String ret = path_which(p_name);
-
-	if (ret.length())
-		return ret;
-
-	String ret_fallback = path_which(p_name + ".exe");
-	if (ret_fallback.length())
-		return ret_fallback;
-
-	static Vector<const char *> locations = _get_msbuild_hint_dirs();
-
-	for (int i = 0; i < locations.size(); i++) {
-		String hint_path = locations[i] + p_name;
-
-		if (FileAccess::exists(hint_path)) {
-			return hint_path;
-		}
-	}
-
-	return String();
-}
-#endif
-
-MonoString *godot_icall_BuildInstance_get_MSBuildPath() {
-
-	GodotSharpBuilds::BuildTool build_tool = GodotSharpBuilds::BuildTool(int(EditorSettings::get_singleton()->get("mono/builds/build_tool")));
-
-#if defined(WINDOWS_ENABLED)
-	switch (build_tool) {
-		case GodotSharpBuilds::MSBUILD_VS: {
-			static String msbuild_tools_path;
-
-			if (msbuild_tools_path.empty() || !FileAccess::exists(msbuild_tools_path)) {
-				// Try to search it again if it wasn't found last time or if it was removed from its location
-				msbuild_tools_path = MonoRegUtils::find_msbuild_tools_path();
-
-				if (msbuild_tools_path.empty()) {
-					ERR_PRINTS("Cannot find executable for '" PROP_NAME_MSBUILD_VS "'. Tried with path: " + msbuild_tools_path);
-					return NULL;
-				}
-			}
-
-			if (!msbuild_tools_path.ends_with("\\"))
-				msbuild_tools_path += "\\";
-
-			return GDMonoMarshal::mono_string_from_godot(msbuild_tools_path + "MSBuild.exe");
-		} break;
-		case GodotSharpBuilds::MSBUILD_MONO: {
-			String msbuild_path = GDMono::get_singleton()->get_mono_reg_info().bin_dir.plus_file("msbuild.bat");
-
-			if (!FileAccess::exists(msbuild_path)) {
-				ERR_PRINTS("Cannot find executable for '" PROP_NAME_MSBUILD_MONO "'. Tried with path: " + msbuild_path);
-				return NULL;
-			}
-
-			return GDMonoMarshal::mono_string_from_godot(msbuild_path);
-		} break;
-		case GodotSharpBuilds::XBUILD: {
-			String xbuild_path = GDMono::get_singleton()->get_mono_reg_info().bin_dir.plus_file("xbuild.bat");
-
-			if (!FileAccess::exists(xbuild_path)) {
-				ERR_PRINTS("Cannot find executable for '" PROP_NAME_XBUILD "'. Tried with path: " + xbuild_path);
-				return NULL;
-			}
-
-			return GDMonoMarshal::mono_string_from_godot(xbuild_path);
-		} break;
-		default:
-			ERR_EXPLAIN("You don't deserve to live");
-			CRASH_NOW();
-	}
-#elif defined(UNIX_ENABLED)
-	static String msbuild_path;
-	static String xbuild_path;
-
-	if (build_tool == GodotSharpBuilds::XBUILD) {
-		if (xbuild_path.empty() || !FileAccess::exists(xbuild_path)) {
-			// Try to search it again if it wasn't found last time or if it was removed from its location
-			xbuild_path = _find_build_engine_on_unix("msbuild");
-		}
-
-		if (xbuild_path.empty()) {
-			ERR_PRINT("Cannot find binary for '" PROP_NAME_XBUILD "'");
-			return NULL;
-		}
-	} else {
-		if (msbuild_path.empty() || !FileAccess::exists(msbuild_path)) {
-			// Try to search it again if it wasn't found last time or if it was removed from its location
-			msbuild_path = _find_build_engine_on_unix("msbuild");
-		}
-
-		if (msbuild_path.empty()) {
-			ERR_PRINT("Cannot find binary for '" PROP_NAME_MSBUILD_MONO "'");
-			return NULL;
-		}
-	}
-
-	return GDMonoMarshal::mono_string_from_godot(build_tool != GodotSharpBuilds::XBUILD ? msbuild_path : xbuild_path);
-#else
-	(void)build_tool; // UNUSED
-
-	ERR_EXPLAIN("Not implemented on this platform");
-	ERR_FAIL_V(NULL);
-#endif
-}
-
-MonoString *godot_icall_BuildInstance_get_MonoWindowsBinDir() {
-
-#if defined(WINDOWS_ENABLED)
-	const MonoRegInfo &mono_reg_info = GDMono::get_singleton()->get_mono_reg_info();
-	if (mono_reg_info.bin_dir.length()) {
-		return GDMonoMarshal::mono_string_from_godot(mono_reg_info.bin_dir);
-	}
-
-	ERR_EXPLAIN("Cannot find Mono's binaries directory in the registry");
-	ERR_FAIL_V(NULL);
-#else
-	return NULL;
-#endif
-}
-
-MonoBoolean godot_icall_BuildInstance_get_UsingMonoMSBuildOnWindows() {
-
-#if defined(WINDOWS_ENABLED)
-	return GodotSharpBuilds::BuildTool(int(EditorSettings::get_singleton()->get("mono/builds/build_tool"))) == GodotSharpBuilds::MSBUILD_MONO;
-#else
-	return false;
-#endif
-}
-
-MonoBoolean godot_icall_BuildInstance_get_PrintBuildOutput() {
-
-	return (bool)EDITOR_GET("mono/builds/print_build_output");
-}
-
-void GodotSharpBuilds::register_internal_calls() {
-
-	static bool registered = false;
-	ERR_FAIL_COND(registered);
-	registered = true;
-
-	mono_add_internal_call("GodotSharpTools.Build.BuildSystem::godot_icall_BuildInstance_ExitCallback", (void *)godot_icall_BuildInstance_ExitCallback);
-	mono_add_internal_call("GodotSharpTools.Build.BuildInstance::godot_icall_BuildInstance_get_MSBuildPath", (void *)godot_icall_BuildInstance_get_MSBuildPath);
-	mono_add_internal_call("GodotSharpTools.Build.BuildInstance::godot_icall_BuildInstance_get_MonoWindowsBinDir", (void *)godot_icall_BuildInstance_get_MonoWindowsBinDir);
-	mono_add_internal_call("GodotSharpTools.Build.BuildInstance::godot_icall_BuildInstance_get_UsingMonoMSBuildOnWindows", (void *)godot_icall_BuildInstance_get_UsingMonoMSBuildOnWindows);
-	mono_add_internal_call("GodotSharpTools.Build.BuildInstance::godot_icall_BuildInstance_get_PrintBuildOutput", (void *)godot_icall_BuildInstance_get_PrintBuildOutput);
-}
-
-void GodotSharpBuilds::show_build_error_dialog(const String &p_message) {
-
-	GodotSharpEditor::get_singleton()->show_error_dialog(p_message, "Build error");
-	MonoBottomPanel::get_singleton()->show_build_tab();
-}
-
-bool GodotSharpBuilds::build_api_sln(const String &p_api_sln_dir, const String &p_config) {
-
-	String api_sln_file = p_api_sln_dir.plus_file(API_SOLUTION_NAME ".sln");
-
-	String core_api_assembly_dir = p_api_sln_dir.plus_file(CORE_API_ASSEMBLY_NAME).plus_file("bin").plus_file(p_config);
-	String core_api_assembly_file = core_api_assembly_dir.plus_file(CORE_API_ASSEMBLY_NAME ".dll");
-
-	String editor_api_assembly_dir = p_api_sln_dir.plus_file(EDITOR_API_ASSEMBLY_NAME).plus_file("bin").plus_file(p_config);
-	String editor_api_assembly_file = editor_api_assembly_dir.plus_file(EDITOR_API_ASSEMBLY_NAME ".dll");
-
-	if (!FileAccess::exists(core_api_assembly_file) || !FileAccess::exists(editor_api_assembly_file)) {
-		MonoBuildInfo api_build_info(api_sln_file, p_config);
-		// TODO Replace this global NoWarn with '#pragma warning' directives on generated files,
-		// once we start to actively document manually maintained C# classes
-		api_build_info.custom_props.push_back("NoWarn=1591"); // Ignore missing documentation warnings
-
-		if (!GodotSharpBuilds::get_singleton()->build(api_build_info)) {
-			show_build_error_dialog("Failed to build " API_SOLUTION_NAME " solution.");
-			return false;
-		}
-	}
-
-	return true;
-}
-
-bool GodotSharpBuilds::copy_api_assembly(const String &p_src_dir, const String &p_dst_dir, const String &p_assembly_name, APIAssembly::Type p_api_type) {
-
-	// Create destination directory if needed
-	if (!DirAccess::exists(p_dst_dir)) {
-		DirAccess *da = DirAccess::create_for_path(p_dst_dir);
-		Error err = da->make_dir_recursive(p_dst_dir);
-		memdelete(da);
-
-		if (err != OK) {
-			show_build_error_dialog("Failed to create destination directory for the API assemblies. Error: " + itos(err));
-			return false;
-		}
-	}
-
-	String assembly_file = p_assembly_name + ".dll";
-	String assembly_src = p_src_dir.plus_file(assembly_file);
-	String assembly_dst = p_dst_dir.plus_file(assembly_file);
-
-	if (!FileAccess::exists(assembly_dst) ||
-			FileAccess::get_modified_time(assembly_src) > FileAccess::get_modified_time(assembly_dst) ||
-			GDMono::get_singleton()->metadata_is_api_assembly_invalidated(p_api_type)) {
-		DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
-
-		String xml_file = p_assembly_name + ".xml";
-		if (da->copy(p_src_dir.plus_file(xml_file), p_dst_dir.plus_file(xml_file)) != OK)
-			WARN_PRINTS("Failed to copy " + xml_file);
-
-		String pdb_file = p_assembly_name + ".pdb";
-		if (da->copy(p_src_dir.plus_file(pdb_file), p_dst_dir.plus_file(pdb_file)) != OK)
-			WARN_PRINTS("Failed to copy " + pdb_file);
-
-		Error err = da->copy(assembly_src, assembly_dst);
-
-		if (err != OK) {
-			show_build_error_dialog("Failed to copy " + assembly_file);
-			return false;
-		}
-
-		GDMono::get_singleton()->metadata_set_api_assembly_invalidated(p_api_type, false);
-	}
-
-	return true;
-}
-
-String GodotSharpBuilds::_api_folder_name(APIAssembly::Type p_api_type) {
-
-	uint64_t api_hash = p_api_type == APIAssembly::API_CORE ?
-								GDMono::get_singleton()->get_api_core_hash() :
-								GDMono::get_singleton()->get_api_editor_hash();
-	return String::num_uint64(api_hash) +
-		   "_" + String::num_uint64(BindingsGenerator::get_version()) +
-		   "_" + String::num_uint64(CS_GLUE_VERSION);
-}
-
-bool GodotSharpBuilds::make_api_assembly(APIAssembly::Type p_api_type) {
-
-	String api_name = p_api_type == APIAssembly::API_CORE ? CORE_API_ASSEMBLY_NAME : EDITOR_API_ASSEMBLY_NAME;
-
-	String editor_prebuilt_api_dir = GodotSharpDirs::get_data_editor_prebuilt_api_dir();
-	String res_assemblies_dir = GodotSharpDirs::get_res_assemblies_dir();
-
-	if (FileAccess::exists(editor_prebuilt_api_dir.plus_file(api_name + ".dll"))) {
-		EditorProgress pr("mono_copy_prebuilt_api_assembly", "Copying prebuilt " + api_name + " assembly...", 1);
-		pr.step("Copying " + api_name + " assembly", 0);
-		return GodotSharpBuilds::copy_api_assembly(editor_prebuilt_api_dir, res_assemblies_dir, api_name, p_api_type);
-	}
-
-	String api_build_config = "Release";
-
-	EditorProgress pr("mono_build_release_" API_SOLUTION_NAME, "Building " API_SOLUTION_NAME " solution...", 3);
-
-	pr.step("Generating " API_SOLUTION_NAME " solution", 0);
-
-	String api_sln_dir = GodotSharpDirs::get_mono_solutions_dir()
-								 .plus_file(_api_folder_name(APIAssembly::API_CORE));
-
-	String api_sln_file = api_sln_dir.plus_file(API_SOLUTION_NAME ".sln");
-
-	if (!DirAccess::exists(api_sln_dir) || !FileAccess::exists(api_sln_file)) {
-		BindingsGenerator bindings_generator;
-
-		if (!OS::get_singleton()->is_stdout_verbose()) {
-			bindings_generator.set_log_print_enabled(false);
-		}
-
-		Error err = bindings_generator.generate_cs_api(api_sln_dir);
-		if (err != OK) {
-			show_build_error_dialog("Failed to generate " API_SOLUTION_NAME " solution. Error: " + itos(err));
-			return false;
-		}
-	}
-
-	pr.step("Building " API_SOLUTION_NAME " solution", 1);
-
-	if (!GodotSharpBuilds::build_api_sln(api_sln_dir, api_build_config))
-		return false;
-
-	pr.step("Copying " + api_name + " assembly", 2);
-
-	// Copy the built assembly to the assemblies directory
-	String api_assembly_dir = api_sln_dir.plus_file(api_name).plus_file("bin").plus_file(api_build_config);
-	if (!GodotSharpBuilds::copy_api_assembly(api_assembly_dir, res_assemblies_dir, api_name, p_api_type))
-		return false;
-
-	return true;
-}
-
-bool GodotSharpBuilds::build_project_blocking(const String &p_config, const Vector<String> &p_godot_defines) {
-
-	if (!FileAccess::exists(GodotSharpDirs::get_project_sln_path()))
-		return true; // No solution to build
-
-	if (!GodotSharpBuilds::make_api_assembly(APIAssembly::API_CORE))
-		return false;
-
-	if (!GodotSharpBuilds::make_api_assembly(APIAssembly::API_EDITOR))
-		return false;
-
-	EditorProgress pr("mono_project_debug_build", "Building project solution...", 1);
-	pr.step("Building project solution", 0);
-
-	MonoBuildInfo build_info(GodotSharpDirs::get_project_sln_path(), p_config);
-
-	// Add Godot defines
-#ifdef WINDOWS_ENABLED
-	String constants = "GodotDefineConstants=\"";
-#else
-	String constants = "GodotDefineConstants=\\\"";
-#endif
-
-	for (int i = 0; i < p_godot_defines.size(); i++) {
-		constants += "GODOT_" + p_godot_defines[i].to_upper().replace("-", "_").replace(" ", "_").replace(";", "_") + ";";
-	}
-
-#ifdef REAL_T_IS_DOUBLE
-	constants += "GODOT_REAL_T_IS_DOUBLE;";
-#endif
-
-#ifdef WINDOWS_ENABLED
-	constants += "\"";
-#else
-	constants += "\\\"";
-#endif
-	build_info.custom_props.push_back(constants);
-
-	if (!GodotSharpBuilds::get_singleton()->build(build_info)) {
-		GodotSharpBuilds::show_build_error_dialog("Failed to build project solution");
-		return false;
-	}
-
-	return true;
-}
-
-bool GodotSharpBuilds::editor_build_callback() {
-
-	if (!FileAccess::exists(GodotSharpDirs::get_project_sln_path()))
-		return true; // No solution to build
-
-	String scripts_metadata_path_editor = GodotSharpDirs::get_res_metadata_dir().plus_file("scripts_metadata.editor");
-	String scripts_metadata_path_player = GodotSharpDirs::get_res_metadata_dir().plus_file("scripts_metadata.editor_player");
-
-	Error metadata_err = CSharpProject::generate_scripts_metadata(GodotSharpDirs::get_project_csproj_path(), scripts_metadata_path_editor);
-	ERR_FAIL_COND_V(metadata_err != OK, false);
-
-	if (FileAccess::exists(scripts_metadata_path_editor)) {
-		DirAccessRef da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-		Error copy_err = da->copy(scripts_metadata_path_editor, scripts_metadata_path_player);
-
-		ERR_EXPLAIN("Failed to copy scripts metadata file");
-		ERR_FAIL_COND_V(copy_err != OK, false);
-	}
-
-	Vector<String> godot_defines;
-	godot_defines.push_back(OS::get_singleton()->get_name());
-	godot_defines.push_back(sizeof(void *) == 4 ? "32" : "64");
-	return build_project_blocking("Tools", godot_defines);
-}
-
-GodotSharpBuilds *GodotSharpBuilds::singleton = NULL;
-
-void GodotSharpBuilds::build_exit_callback(const MonoBuildInfo &p_build_info, int p_exit_code) {
-
-	BuildProcess *match = builds.getptr(p_build_info);
-	ERR_FAIL_NULL(match);
-
-	BuildProcess &bp = *match;
-	bp.on_exit(p_exit_code);
-}
-
-void GodotSharpBuilds::restart_build(MonoBuildTab *p_build_tab) {
-}
-
-void GodotSharpBuilds::stop_build(MonoBuildTab *p_build_tab) {
-}
-
-bool GodotSharpBuilds::build(const MonoBuildInfo &p_build_info) {
-
-	BuildProcess *match = builds.getptr(p_build_info);
-
-	if (match) {
-		BuildProcess &bp = *match;
-		bp.start(true);
-		return bp.exit_code == 0;
-	} else {
-		BuildProcess bp = BuildProcess(p_build_info);
-		bp.start(true);
-		builds.set(p_build_info, bp);
-		return bp.exit_code == 0;
-	}
-}
-
-bool GodotSharpBuilds::build_async(const MonoBuildInfo &p_build_info, GodotSharpBuild_ExitCallback p_callback) {
-
-	BuildProcess *match = builds.getptr(p_build_info);
-
-	if (match) {
-		BuildProcess &bp = *match;
-		bp.start();
-		return !bp.exited; // failed to start
-	} else {
-		BuildProcess bp = BuildProcess(p_build_info, p_callback);
-		bp.start();
-		builds.set(p_build_info, bp);
-		return !bp.exited; // failed to start
-	}
-}
-
-GodotSharpBuilds::GodotSharpBuilds() {
-
-	singleton = this;
-
-	EditorNode::get_singleton()->add_build_callback(&GodotSharpBuilds::editor_build_callback);
-
-	// Build tool settings
-	EditorSettings *ed_settings = EditorSettings::get_singleton();
-
-#ifdef WINDOWS_ENABLED
-	EDITOR_DEF("mono/builds/build_tool", MSBUILD_VS);
-#else
-	EDITOR_DEF("mono/builds/build_tool", MSBUILD_MONO);
-#endif
-
-	ed_settings->add_property_hint(PropertyInfo(Variant::INT, "mono/builds/build_tool", PROPERTY_HINT_ENUM,
-			PROP_NAME_MSBUILD_MONO
-#ifdef WINDOWS_ENABLED
-			"," PROP_NAME_MSBUILD_VS
-#endif
-			"," PROP_NAME_XBUILD));
-
-	EDITOR_DEF("mono/builds/print_build_output", false);
-}
-
-GodotSharpBuilds::~GodotSharpBuilds() {
-
-	singleton = NULL;
-}
-
-void GodotSharpBuilds::BuildProcess::on_exit(int p_exit_code) {
-
-	exited = true;
-	exit_code = p_exit_code;
-	build_tab->on_build_exit(p_exit_code == 0 ? MonoBuildTab::RESULT_SUCCESS : MonoBuildTab::RESULT_ERROR);
-	build_instance.unref();
-
-	if (exit_callback)
-		exit_callback(exit_code);
-}
-
-void GodotSharpBuilds::BuildProcess::start(bool p_blocking) {
-
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
-
-	exit_code = -1;
-
-	String log_dirpath = build_info.get_log_dirpath();
-
-	if (build_tab) {
-		build_tab->on_build_start();
-	} else {
-		build_tab = memnew(MonoBuildTab(build_info, log_dirpath));
-		MonoBottomPanel::get_singleton()->add_build_tab(build_tab);
-	}
-
-	if (p_blocking) {
-		// Required in order to update the build tasks list
-		Main::iteration();
-	}
-
-	if (!exited) {
-		exited = true;
-		String message = "Tried to start build process, but it is already running";
-		build_tab->on_build_exec_failed(message);
-		ERR_EXPLAIN(message);
-		ERR_FAIL();
-	}
-
-	exited = false;
-
-	// Remove old issues file
-
-	String issues_file = get_msbuild_issues_filename();
-	DirAccessRef d = DirAccess::create_for_path(log_dirpath);
-	if (d->file_exists(issues_file)) {
-		Error err = d->remove(issues_file);
-		if (err != OK) {
-			exited = true;
-			String file_path = ProjectSettings::get_singleton()->localize_path(log_dirpath).plus_file(issues_file);
-			String message = "Cannot remove issues file: " + file_path;
-			build_tab->on_build_exec_failed(message);
-			ERR_EXPLAIN(message);
-			ERR_FAIL();
-		}
-	}
-
-	GDMonoClass *klass = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Build", "BuildInstance");
-
-	MonoObject *mono_object = mono_object_new(mono_domain_get(), klass->get_mono_ptr());
-
-	// Construct
-
-	Variant solution = build_info.solution;
-	Variant config = build_info.configuration;
-
-	const Variant *ctor_args[2] = { &solution, &config };
-
-	MonoException *exc = NULL;
-	GDMonoMethod *ctor = klass->get_method(".ctor", 2);
-	ctor->invoke(mono_object, ctor_args, &exc);
-
-	if (exc) {
-		exited = true;
-		GDMonoUtils::debug_unhandled_exception(exc);
-		String message = "The build constructor threw an exception.\n" + GDMonoUtils::get_exception_name_and_message(exc);
-		build_tab->on_build_exec_failed(message);
-		ERR_EXPLAIN(message);
-		ERR_FAIL();
-	}
-
-	// Call Build
-
-	String logger_assembly_path = GDMono::get_singleton()->get_editor_tools_assembly()->get_path();
-	Variant logger_assembly = ProjectSettings::get_singleton()->globalize_path(logger_assembly_path);
-	Variant logger_output_dir = log_dirpath;
-	Variant custom_props = build_info.custom_props;
-
-	const Variant *args[3] = { &logger_assembly, &logger_output_dir, &custom_props };
-
-	exc = NULL;
-	GDMonoMethod *build_method = klass->get_method(p_blocking ? "Build" : "BuildAsync", 3);
-	build_method->invoke(mono_object, args, &exc);
-
-	if (exc) {
-		exited = true;
-		GDMonoUtils::debug_unhandled_exception(exc);
-		String message = "The build method threw an exception.\n" + GDMonoUtils::get_exception_name_and_message(exc);
-		build_tab->on_build_exec_failed(message);
-		ERR_EXPLAIN(message);
-		ERR_FAIL();
-	}
-
-	// Build returned
-
-	if (p_blocking) {
-		exited = true;
-		exit_code = klass->get_field("exitCode")->get_int_value(mono_object);
-
-		if (exit_code != 0) {
-			String log_filepath = build_info.get_log_dirpath().plus_file(get_msbuild_log_filename());
-			print_verbose("MSBuild exited with code: " + itos(exit_code) + ". Log file: " + log_filepath);
-		}
-
-		build_tab->on_build_exit(exit_code == 0 ? MonoBuildTab::RESULT_SUCCESS : MonoBuildTab::RESULT_ERROR);
-	} else {
-		build_instance = MonoGCHandle::create_strong(mono_object);
-		exited = false;
-	}
-}
-
-GodotSharpBuilds::BuildProcess::BuildProcess(const MonoBuildInfo &p_build_info, GodotSharpBuild_ExitCallback p_callback) :
-		build_info(p_build_info),
-		build_tab(NULL),
-		exit_callback(p_callback),
-		exited(true),
-		exit_code(-1) {
-}
diff --git a/modules/mono/editor/godotsharp_builds.h b/modules/mono/editor/godotsharp_builds.h
deleted file mode 100644
index 2e9050e12e..0000000000
--- a/modules/mono/editor/godotsharp_builds.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/*************************************************************************/
-/*  godotsharp_builds.h                                                  */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef GODOTSHARP_BUILDS_H
-#define GODOTSHARP_BUILDS_H
-
-#include "../mono_gd/gd_mono.h"
-#include "mono_bottom_panel.h"
-#include "mono_build_info.h"
-
-typedef void (*GodotSharpBuild_ExitCallback)(int);
-
-class GodotSharpBuilds {
-
-private:
-	struct BuildProcess {
-		Ref<MonoGCHandle> build_instance;
-		MonoBuildInfo build_info;
-		MonoBuildTab *build_tab;
-		GodotSharpBuild_ExitCallback exit_callback;
-		bool exited;
-		int exit_code;
-
-		void on_exit(int p_exit_code);
-		void start(bool p_blocking = false);
-
-		BuildProcess() {}
-		BuildProcess(const MonoBuildInfo &p_build_info, GodotSharpBuild_ExitCallback p_callback = NULL);
-	};
-
-	HashMap<MonoBuildInfo, BuildProcess, MonoBuildInfo::Hasher> builds;
-
-	static String _api_folder_name(APIAssembly::Type p_api_type);
-
-	static GodotSharpBuilds *singleton;
-
-public:
-	enum BuildTool {
-		MSBUILD_MONO,
-#ifdef WINDOWS_ENABLED
-		MSBUILD_VS,
-#endif
-		XBUILD // Deprecated
-	};
-
-	_FORCE_INLINE_ static GodotSharpBuilds *get_singleton() { return singleton; }
-
-	static void register_internal_calls();
-
-	static void show_build_error_dialog(const String &p_message);
-
-	static const char *get_msbuild_issues_filename() { return "msbuild_issues.csv"; }
-	static const char *get_msbuild_log_filename() { return "msbuild_log.txt"; }
-
-	void build_exit_callback(const MonoBuildInfo &p_build_info, int p_exit_code);
-
-	void restart_build(MonoBuildTab *p_build_tab);
-	void stop_build(MonoBuildTab *p_build_tab);
-
-	bool build(const MonoBuildInfo &p_build_info);
-	bool build_async(const MonoBuildInfo &p_build_info, GodotSharpBuild_ExitCallback p_callback = NULL);
-
-	static bool build_api_sln(const String &p_api_sln_dir, const String &p_config);
-	static bool copy_api_assembly(const String &p_src_dir, const String &p_dst_dir, const String &p_assembly_name, APIAssembly::Type p_api_type);
-
-	static bool make_api_assembly(APIAssembly::Type p_api_type);
-
-	static bool build_project_blocking(const String &p_config, const Vector<String> &p_godot_defines);
-
-	static bool editor_build_callback();
-
-	GodotSharpBuilds();
-	~GodotSharpBuilds();
-};
-
-#endif // GODOTSHARP_BUILDS_H
diff --git a/modules/mono/editor/godotsharp_editor.cpp b/modules/mono/editor/godotsharp_editor.cpp
deleted file mode 100644
index 8dc5ced29f..0000000000
--- a/modules/mono/editor/godotsharp_editor.cpp
+++ /dev/null
@@ -1,582 +0,0 @@
-/*************************************************************************/
-/*  godotsharp_editor.cpp                                                */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "godotsharp_editor.h"
-
-#include "core/message_queue.h"
-#include "core/os/os.h"
-#include "core/project_settings.h"
-#include "scene/gui/control.h"
-#include "scene/main/node.h"
-
-#include "../csharp_script.h"
-#include "../godotsharp_dirs.h"
-#include "../mono_gd/gd_mono.h"
-#include "../mono_gd/gd_mono_marshal.h"
-#include "../utils/path_utils.h"
-#include "bindings_generator.h"
-#include "csharp_project.h"
-#include "dotnet_solution.h"
-#include "godotsharp_export.h"
-
-#ifdef OSX_ENABLED
-#include "../utils/osx_utils.h"
-#endif
-
-#ifdef WINDOWS_ENABLED
-#include "../utils/mono_reg_utils.h"
-#endif
-
-GodotSharpEditor *GodotSharpEditor::singleton = NULL;
-
-bool GodotSharpEditor::_create_project_solution() {
-
-	EditorProgress pr("create_csharp_solution", TTR("Generating solution..."), 2);
-
-	pr.step(TTR("Generating C# project..."));
-
-	String path = OS::get_singleton()->get_resource_dir();
-	String appname = ProjectSettings::get_singleton()->get("application/config/name");
-	String appname_safe = OS::get_singleton()->get_safe_dir_name(appname);
-	if (appname_safe.empty()) {
-		appname_safe = "UnnamedProject";
-	}
-
-	String guid = CSharpProject::generate_game_project(path, appname_safe);
-
-	if (guid.length()) {
-
-		DotNetSolution solution(appname_safe);
-
-		if (!solution.set_path(path)) {
-			show_error_dialog(TTR("Failed to create solution."));
-			return false;
-		}
-
-		DotNetSolution::ProjectInfo proj_info;
-		proj_info.guid = guid;
-		proj_info.relpath = appname_safe + ".csproj";
-		proj_info.configs.push_back("Debug");
-		proj_info.configs.push_back("Release");
-		proj_info.configs.push_back("Tools");
-
-		solution.add_new_project(appname_safe, proj_info);
-
-		Error sln_error = solution.save();
-
-		if (sln_error != OK) {
-			show_error_dialog(TTR("Failed to save solution."));
-			return false;
-		}
-
-		if (!GodotSharpBuilds::make_api_assembly(APIAssembly::API_CORE))
-			return false;
-
-		if (!GodotSharpBuilds::make_api_assembly(APIAssembly::API_EDITOR))
-			return false;
-
-		pr.step(TTR("Done"));
-
-		// Here, after all calls to progress_task_step
-		call_deferred("_remove_create_sln_menu_option");
-
-	} else {
-		show_error_dialog(TTR("Failed to create C# project."));
-	}
-
-	return true;
-}
-
-void GodotSharpEditor::_make_api_solutions_if_needed() {
-	// I'm sick entirely of ProgressDialog
-
-	static int attempts_left = 100;
-
-	if (MessageQueue::get_singleton()->is_flushing() || !SceneTree::get_singleton()) {
-		ERR_FAIL_COND(attempts_left == 0); // You've got to be kidding
-
-		if (SceneTree::get_singleton()) {
-			SceneTree::get_singleton()->connect("idle_frame", this, "_make_api_solutions_if_needed", Vector<Variant>());
-		} else {
-			call_deferred("_make_api_solutions_if_needed");
-		}
-
-		attempts_left--;
-		return;
-	}
-
-	// Recursion guard needed because signals don't play well with ProgressDialog either, but unlike
-	// the message queue, with signals the collateral damage should be minimal in the worst case.
-	static bool recursion_guard = false;
-	if (!recursion_guard) {
-		recursion_guard = true;
-
-		// Oneshot signals don't play well with ProgressDialog either, so we do it this way instead
-		SceneTree::get_singleton()->disconnect("idle_frame", this, "_make_api_solutions_if_needed");
-
-		_make_api_solutions_if_needed_impl();
-
-		recursion_guard = false;
-	}
-}
-
-void GodotSharpEditor::_make_api_solutions_if_needed_impl() {
-	// If the project has a solution and C# project make sure the API assemblies are present and up to date
-	String res_assemblies_dir = GodotSharpDirs::get_res_assemblies_dir();
-
-	if (!FileAccess::exists(res_assemblies_dir.plus_file(CORE_API_ASSEMBLY_NAME ".dll")) ||
-			GDMono::get_singleton()->metadata_is_api_assembly_invalidated(APIAssembly::API_CORE)) {
-		if (!GodotSharpBuilds::make_api_assembly(APIAssembly::API_CORE))
-			return;
-	}
-
-	if (!FileAccess::exists(res_assemblies_dir.plus_file(EDITOR_API_ASSEMBLY_NAME ".dll")) ||
-			GDMono::get_singleton()->metadata_is_api_assembly_invalidated(APIAssembly::API_EDITOR)) {
-		if (!GodotSharpBuilds::make_api_assembly(APIAssembly::API_EDITOR))
-			return; // Redundant? I don't think so
-	}
-}
-
-void GodotSharpEditor::_remove_create_sln_menu_option() {
-
-	menu_popup->remove_item(menu_popup->get_item_index(MENU_CREATE_SLN));
-
-	bottom_panel_btn->show();
-}
-
-void GodotSharpEditor::_show_about_dialog() {
-
-	bool show_on_start = EDITOR_GET("mono/editor/show_info_on_start");
-	about_dialog_checkbox->set_pressed(show_on_start);
-	about_dialog->popup_centered_minsize();
-}
-
-void GodotSharpEditor::_toggle_about_dialog_on_start(bool p_enabled) {
-
-	bool show_on_start = EDITOR_GET("mono/editor/show_info_on_start");
-	if (show_on_start != p_enabled) {
-		EditorSettings::get_singleton()->set_setting("mono/editor/show_info_on_start", p_enabled);
-	}
-}
-
-void GodotSharpEditor::_build_solution_pressed() {
-
-	if (!FileAccess::exists(GodotSharpDirs::get_project_sln_path())) {
-		if (!_create_project_solution())
-			return; // Failed to create solution
-	}
-
-	MonoBottomPanel::get_singleton()->call("_build_project_pressed");
-}
-
-void GodotSharpEditor::_menu_option_pressed(int p_id) {
-
-	switch (p_id) {
-		case MENU_CREATE_SLN: {
-
-			_create_project_solution();
-		} break;
-		case MENU_ABOUT_CSHARP: {
-
-			_show_about_dialog();
-		} break;
-		default:
-			ERR_FAIL();
-	}
-}
-
-void GodotSharpEditor::_notification(int p_notification) {
-
-	switch (p_notification) {
-
-		case NOTIFICATION_READY: {
-
-			bool show_info_dialog = EDITOR_GET("mono/editor/show_info_on_start");
-			if (show_info_dialog) {
-				about_dialog->set_exclusive(true);
-				_show_about_dialog();
-				// Once shown a first time, it can be seen again via the Mono menu - it doesn't have to be exclusive then.
-				about_dialog->set_exclusive(false);
-			}
-		}
-	}
-}
-
-void GodotSharpEditor::_bind_methods() {
-
-	ClassDB::bind_method(D_METHOD("_build_solution_pressed"), &GodotSharpEditor::_build_solution_pressed);
-	ClassDB::bind_method(D_METHOD("_create_project_solution"), &GodotSharpEditor::_create_project_solution);
-	ClassDB::bind_method(D_METHOD("_make_api_solutions_if_needed"), &GodotSharpEditor::_make_api_solutions_if_needed);
-	ClassDB::bind_method(D_METHOD("_remove_create_sln_menu_option"), &GodotSharpEditor::_remove_create_sln_menu_option);
-	ClassDB::bind_method(D_METHOD("_toggle_about_dialog_on_start"), &GodotSharpEditor::_toggle_about_dialog_on_start);
-	ClassDB::bind_method(D_METHOD("_menu_option_pressed", "id"), &GodotSharpEditor::_menu_option_pressed);
-}
-
-MonoBoolean godot_icall_MonoDevelopInstance_IsApplicationBundleInstalled(MonoString *p_bundle_id) {
-#ifdef OSX_ENABLED
-	return (MonoBoolean)osx_is_app_bundle_installed(GDMonoMarshal::mono_string_to_godot(p_bundle_id));
-#else
-	(void)p_bundle_id; // UNUSED
-	ERR_FAIL_V(false);
-#endif
-}
-
-MonoString *godot_icall_Utils_OS_GetPlatformName() {
-	return GDMonoMarshal::mono_string_from_godot(OS::get_singleton()->get_name());
-}
-
-void GodotSharpEditor::register_internal_calls() {
-
-	static bool registered = false;
-	ERR_FAIL_COND(registered);
-	registered = true;
-
-	mono_add_internal_call("GodotSharpTools.Editor.MonoDevelopInstance::IsApplicationBundleInstalled", (void *)godot_icall_MonoDevelopInstance_IsApplicationBundleInstalled);
-	mono_add_internal_call("GodotSharpTools.Utils.OS::GetPlatformName", (void *)godot_icall_Utils_OS_GetPlatformName);
-
-	GodotSharpBuilds::register_internal_calls();
-	GodotSharpExport::register_internal_calls();
-}
-
-void GodotSharpEditor::show_error_dialog(const String &p_message, const String &p_title) {
-
-	error_dialog->set_title(p_title);
-	error_dialog->set_text(p_message);
-	error_dialog->popup_centered_minsize();
-}
-
-Error GodotSharpEditor::open_in_external_editor(const Ref<Script> &p_script, int p_line, int p_col) {
-
-	ExternalEditor editor = ExternalEditor(int(EditorSettings::get_singleton()->get("mono/editor/external_editor")));
-
-	switch (editor) {
-		case EDITOR_VSCODE: {
-			static String vscode_path;
-
-			if (vscode_path.empty() || !FileAccess::exists(vscode_path)) {
-				// Try to search it again if it wasn't found last time or if it was removed from its location
-				bool found = false;
-
-				// TODO: Use initializer lists once C++11 is allowed
-
-				static Vector<String> vscode_names;
-				if (vscode_names.empty()) {
-					vscode_names.push_back("code");
-					vscode_names.push_back("code-oss");
-					vscode_names.push_back("vscode");
-					vscode_names.push_back("vscode-oss");
-					vscode_names.push_back("visual-studio-code");
-					vscode_names.push_back("visual-studio-code-oss");
-				}
-				for (int i = 0; i < vscode_names.size(); i++) {
-					vscode_path = path_which(vscode_names[i]);
-					if (!vscode_path.empty()) {
-						found = true;
-						break;
-					}
-				}
-
-				if (!found)
-					vscode_path.clear(); // Not found, clear so next time the empty() check is enough
-			}
-
-			List<String> args;
-
-#ifdef OSX_ENABLED
-			// The package path is '/Applications/Visual Studio Code.app'
-			static const String vscode_bundle_id = "com.microsoft.VSCode";
-			static bool osx_app_bundle_installed = osx_is_app_bundle_installed(vscode_bundle_id);
-
-			if (osx_app_bundle_installed) {
-				args.push_back("-b");
-				args.push_back(vscode_bundle_id);
-
-				// The reusing of existing windows made by the 'open' command might not choose a wubdiw that is
-				// editing our folder. It's better to ask for a new window and let VSCode do the window management.
-				args.push_back("-n");
-
-				// The open process must wait until the application finishes (which is instant in VSCode's case)
-				args.push_back("--wait-apps");
-
-				args.push_back("--args");
-			}
-#endif
-
-			args.push_back(ProjectSettings::get_singleton()->get_resource_path());
-
-			String script_path = ProjectSettings::get_singleton()->globalize_path(p_script->get_path());
-
-			if (p_line >= 0) {
-				args.push_back("-g");
-				args.push_back(script_path + ":" + itos(p_line + 1) + ":" + itos(p_col));
-			} else {
-				args.push_back(script_path);
-			}
-
-#ifdef OSX_ENABLED
-			ERR_EXPLAIN("Cannot find code editor: VSCode");
-			ERR_FAIL_COND_V(!osx_app_bundle_installed && vscode_path.empty(), ERR_FILE_NOT_FOUND);
-
-			String command = osx_app_bundle_installed ? "/usr/bin/open" : vscode_path;
-#else
-			ERR_EXPLAIN("Cannot find code editor: VSCode");
-			ERR_FAIL_COND_V(vscode_path.empty(), ERR_FILE_NOT_FOUND);
-
-			String command = vscode_path;
-#endif
-
-			Error err = OS::get_singleton()->execute(command, args, false);
-
-			if (err != OK) {
-				ERR_PRINT("Error when trying to execute code editor: VSCode");
-				return err;
-			}
-		} break;
-#ifdef OSX_ENABLED
-		case EDITOR_VISUALSTUDIO_MAC:
-			// [[fallthrough]];
-#endif
-		case EDITOR_MONODEVELOP: {
-#ifdef OSX_ENABLED
-			bool is_visualstudio = editor == EDITOR_VISUALSTUDIO_MAC;
-
-			MonoDevelopInstance **instance = is_visualstudio ?
-													 &visualstudio_mac_instance :
-													 &monodevelop_instance;
-
-			MonoDevelopInstance::EditorId editor_id = is_visualstudio ?
-															  MonoDevelopInstance::VISUALSTUDIO_FOR_MAC :
-															  MonoDevelopInstance::MONODEVELOP;
-#else
-			MonoDevelopInstance **instance = &monodevelop_instance;
-			MonoDevelopInstance::EditorId editor_id = MonoDevelopInstance::MONODEVELOP;
-#endif
-
-			if (!*instance)
-				*instance = memnew(MonoDevelopInstance(GodotSharpDirs::get_project_sln_path(), editor_id));
-
-			String script_path = ProjectSettings::get_singleton()->globalize_path(p_script->get_path());
-
-			if (p_line >= 0) {
-				script_path += ";" + itos(p_line + 1) + ";" + itos(p_col);
-			}
-
-			(*instance)->execute(script_path);
-		} break;
-		default:
-			return ERR_UNAVAILABLE;
-	}
-
-	return OK;
-}
-
-bool GodotSharpEditor::overrides_external_editor() {
-
-	return ExternalEditor(int(EditorSettings::get_singleton()->get("mono/editor/external_editor"))) != EDITOR_NONE;
-}
-
-GodotSharpEditor::GodotSharpEditor(EditorNode *p_editor) {
-
-	singleton = this;
-
-	monodevelop_instance = NULL;
-#ifdef OSX_ENABLED
-	visualstudio_mac_instance = NULL;
-#endif
-
-	editor = p_editor;
-
-	error_dialog = memnew(AcceptDialog);
-	editor->get_gui_base()->add_child(error_dialog);
-
-	bottom_panel_btn = editor->add_bottom_panel_item(TTR("Mono"), memnew(MonoBottomPanel(editor)));
-
-	godotsharp_builds = memnew(GodotSharpBuilds);
-
-	editor->add_child(memnew(MonoReloadNode));
-
-	menu_popup = memnew(PopupMenu);
-	menu_popup->hide();
-	menu_popup->set_as_toplevel(true);
-	menu_popup->set_pass_on_modal_close_click(false);
-
-	editor->add_tool_submenu_item("Mono", menu_popup);
-
-	// TODO: Remove or edit this info dialog once Mono support is no longer in alpha
-	{
-		menu_popup->add_item(TTR("About C# support"), MENU_ABOUT_CSHARP);
-		about_dialog = memnew(AcceptDialog);
-		editor->get_gui_base()->add_child(about_dialog);
-		about_dialog->set_title("Important: C# support is not feature-complete");
-
-		// We don't use set_text() as the default AcceptDialog Label doesn't play well with the TextureRect and CheckBox
-		// we'll add. Instead we add containers and a new autowrapped Label inside.
-
-		// Main VBoxContainer (icon + label on top, checkbox at bottom)
-		VBoxContainer *about_vbc = memnew(VBoxContainer);
-		about_dialog->add_child(about_vbc);
-
-		// HBoxContainer for icon + label
-		HBoxContainer *about_hbc = memnew(HBoxContainer);
-		about_vbc->add_child(about_hbc);
-
-		TextureRect *about_icon = memnew(TextureRect);
-		about_hbc->add_child(about_icon);
-		Ref<Texture> about_icon_tex = about_icon->get_icon("NodeWarning", "EditorIcons");
-		about_icon->set_texture(about_icon_tex);
-
-		Label *about_label = memnew(Label);
-		about_hbc->add_child(about_label);
-		about_label->set_custom_minimum_size(Size2(600, 150) * EDSCALE);
-		about_label->set_v_size_flags(Control::SIZE_EXPAND_FILL);
-		about_label->set_autowrap(true);
-		String about_text =
-				String("C# support in Godot Engine is in late alpha stage and, while already usable, ") +
-				"it is not meant for use in production.\n\n" +
-				"Projects can be exported to Linux, macOS and Windows, but not yet to mobile or web platforms. " +
-				"Bugs and usability issues will be addressed gradually over future releases, " +
-				"potentially including compatibility breaking changes as new features are implemented for a better overall C# experience.\n\n" +
-				"If you experience issues with this Mono build, please report them on Godot's issue tracker with details about your system, MSBuild version, IDE, etc.:\n\n" +
-				"        https://github.com/godotengine/godot/issues\n\n" +
-				"Your critical feedback at this stage will play a great role in shaping the C# support in future releases, so thank you!";
-		about_label->set_text(about_text);
-
-		EDITOR_DEF("mono/editor/show_info_on_start", true);
-
-		// CheckBox in main container
-		about_dialog_checkbox = memnew(CheckBox);
-		about_vbc->add_child(about_dialog_checkbox);
-		about_dialog_checkbox->set_text("Show this warning when starting the editor");
-		about_dialog_checkbox->connect("toggled", this, "_toggle_about_dialog_on_start");
-	}
-
-	String sln_path = GodotSharpDirs::get_project_sln_path();
-	String csproj_path = GodotSharpDirs::get_project_csproj_path();
-
-	if (FileAccess::exists(sln_path) && FileAccess::exists(csproj_path)) {
-		// Defer this task because EditorProgress calls Main::iterarion() and the main loop is not yet initialized.
-		call_deferred("_make_api_solutions_if_needed");
-	} else {
-		bottom_panel_btn->hide();
-		menu_popup->add_item(TTR("Create C# solution"), MENU_CREATE_SLN);
-	}
-
-	menu_popup->connect("id_pressed", this, "_menu_option_pressed");
-
-	ToolButton *build_button = memnew(ToolButton);
-	build_button->set_text("Build");
-	build_button->set_tooltip("Build solution");
-	build_button->set_focus_mode(Control::FOCUS_NONE);
-	build_button->connect("pressed", this, "_build_solution_pressed");
-	editor->get_menu_hb()->add_child(build_button);
-
-	// External editor settings
-	EditorSettings *ed_settings = EditorSettings::get_singleton();
-	EDITOR_DEF("mono/editor/external_editor", EDITOR_NONE);
-
-	String settings_hint_str = "Disabled";
-
-#if defined(WINDOWS_ENABLED)
-	settings_hint_str += ",MonoDevelop,Visual Studio Code";
-#elif defined(OSX_ENABLED)
-	settings_hint_str += ",Visual Studio,MonoDevelop,Visual Studio Code";
-#elif defined(UNIX_ENABLED)
-	settings_hint_str += ",MonoDevelop,Visual Studio Code";
-#endif
-
-	ed_settings->add_property_hint(PropertyInfo(Variant::INT, "mono/editor/external_editor", PROPERTY_HINT_ENUM, settings_hint_str));
-
-	// Export plugin
-	Ref<GodotSharpExport> godotsharp_export;
-	godotsharp_export.instance();
-	EditorExport::get_singleton()->add_export_plugin(godotsharp_export);
-}
-
-GodotSharpEditor::~GodotSharpEditor() {
-
-	singleton = NULL;
-
-	memdelete(godotsharp_builds);
-
-	if (monodevelop_instance) {
-		memdelete(monodevelop_instance);
-		monodevelop_instance = NULL;
-	}
-}
-
-MonoReloadNode *MonoReloadNode::singleton = NULL;
-
-void MonoReloadNode::_reload_timer_timeout() {
-
-	if (CSharpLanguage::get_singleton()->is_assembly_reloading_needed()) {
-		CSharpLanguage::get_singleton()->reload_assemblies(false);
-	}
-}
-
-void MonoReloadNode::restart_reload_timer() {
-
-	reload_timer->stop();
-	reload_timer->start();
-}
-
-void MonoReloadNode::_bind_methods() {
-
-	ClassDB::bind_method(D_METHOD("_reload_timer_timeout"), &MonoReloadNode::_reload_timer_timeout);
-}
-
-void MonoReloadNode::_notification(int p_what) {
-	switch (p_what) {
-		case MainLoop::NOTIFICATION_WM_FOCUS_IN: {
-			restart_reload_timer();
-			if (CSharpLanguage::get_singleton()->is_assembly_reloading_needed()) {
-				CSharpLanguage::get_singleton()->reload_assemblies(false);
-			}
-		} break;
-		default: {
-		} break;
-	};
-}
-
-MonoReloadNode::MonoReloadNode() {
-
-	singleton = this;
-
-	reload_timer = memnew(Timer);
-	add_child(reload_timer);
-	reload_timer->set_one_shot(false);
-	reload_timer->set_wait_time(EDITOR_DEF("mono/assembly_watch_interval_sec", 0.5));
-	reload_timer->connect("timeout", this, "_reload_timer_timeout");
-	reload_timer->start();
-}
-
-MonoReloadNode::~MonoReloadNode() {
-
-	singleton = NULL;
-}
diff --git a/modules/mono/editor/godotsharp_editor.h b/modules/mono/editor/godotsharp_editor.h
deleted file mode 100644
index d5bd8ba126..0000000000
--- a/modules/mono/editor/godotsharp_editor.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/*************************************************************************/
-/*  godotsharp_editor.h                                                  */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef GODOTSHARP_EDITOR_H
-#define GODOTSHARP_EDITOR_H
-
-#include "godotsharp_builds.h"
-#include "monodevelop_instance.h"
-
-class GodotSharpEditor : public Node {
-	GDCLASS(GodotSharpEditor, Node);
-
-	EditorNode *editor;
-
-	MenuButton *menu_button;
-	PopupMenu *menu_popup;
-
-	AcceptDialog *error_dialog;
-	AcceptDialog *about_dialog;
-	CheckBox *about_dialog_checkbox;
-
-	ToolButton *bottom_panel_btn;
-
-	GodotSharpBuilds *godotsharp_builds;
-
-	MonoDevelopInstance *monodevelop_instance;
-#ifdef OSX_ENABLED
-	MonoDevelopInstance *visualstudio_mac_instance;
-#endif
-
-	bool _create_project_solution();
-	void _make_api_solutions_if_needed();
-	void _make_api_solutions_if_needed_impl();
-
-	void _remove_create_sln_menu_option();
-	void _show_about_dialog();
-	void _toggle_about_dialog_on_start(bool p_enabled);
-
-	void _menu_option_pressed(int p_id);
-
-	void _build_solution_pressed();
-
-	static GodotSharpEditor *singleton;
-
-protected:
-	void _notification(int p_notification);
-	static void _bind_methods();
-
-public:
-	enum MenuOptions {
-		MENU_CREATE_SLN,
-		MENU_ABOUT_CSHARP,
-	};
-
-	enum ExternalEditor {
-		EDITOR_NONE,
-#if defined(WINDOWS_ENABLED)
-		//EDITOR_VISUALSTUDIO, // TODO
-		EDITOR_MONODEVELOP,
-		EDITOR_VSCODE
-#elif defined(OSX_ENABLED)
-		EDITOR_VISUALSTUDIO_MAC,
-		EDITOR_MONODEVELOP,
-		EDITOR_VSCODE
-#elif defined(UNIX_ENABLED)
-		EDITOR_MONODEVELOP,
-		EDITOR_VSCODE
-#endif
-	};
-
-	_FORCE_INLINE_ static GodotSharpEditor *get_singleton() { return singleton; }
-
-	static void register_internal_calls();
-
-	void show_error_dialog(const String &p_message, const String &p_title = "Error");
-
-	Error open_in_external_editor(const Ref<Script> &p_script, int p_line, int p_col);
-	bool overrides_external_editor();
-
-	GodotSharpEditor(EditorNode *p_editor);
-	~GodotSharpEditor();
-};
-
-class MonoReloadNode : public Node {
-	GDCLASS(MonoReloadNode, Node);
-
-	Timer *reload_timer;
-
-	void _reload_timer_timeout();
-
-	static MonoReloadNode *singleton;
-
-protected:
-	static void _bind_methods();
-
-	void _notification(int p_what);
-
-public:
-	_FORCE_INLINE_ static MonoReloadNode *get_singleton() { return singleton; }
-
-	void restart_reload_timer();
-
-	MonoReloadNode();
-	~MonoReloadNode();
-};
-
-#endif // GODOTSHARP_EDITOR_H
diff --git a/modules/mono/editor/godotsharp_export.cpp b/modules/mono/editor/godotsharp_export.cpp
index 590ec007ad..020bb70a08 100644
--- a/modules/mono/editor/godotsharp_export.cpp
+++ b/modules/mono/editor/godotsharp_export.cpp
@@ -30,180 +30,28 @@
 
 #include "godotsharp_export.h"
 
-#include "core/version.h"
+#include <mono/metadata/image.h>
 
-#include "../csharp_script.h"
-#include "../godotsharp_defs.h"
-#include "../godotsharp_dirs.h"
-#include "../mono_gd/gd_mono_class.h"
-#include "../mono_gd/gd_mono_marshal.h"
-#include "csharp_project.h"
-#include "godotsharp_builds.h"
+#include "../mono_gd/gd_mono.h"
+#include "../mono_gd/gd_mono_assembly.h"
 
-static MonoString *godot_icall_GodotSharpExport_GetTemplatesDir() {
-	String current_version = VERSION_FULL_CONFIG;
-	String templates_dir = EditorSettings::get_singleton()->get_templates_dir().plus_file(current_version);
-	return GDMonoMarshal::mono_string_from_godot(ProjectSettings::get_singleton()->globalize_path(templates_dir));
-}
-
-static MonoString *godot_icall_GodotSharpExport_GetDataDirName() {
-	String appname = ProjectSettings::get_singleton()->get("application/config/name");
-	String appname_safe = OS::get_singleton()->get_safe_dir_name(appname);
-	return GDMonoMarshal::mono_string_from_godot("data_" + appname_safe);
-}
-
-void GodotSharpExport::register_internal_calls() {
-	static bool registered = false;
-	ERR_FAIL_COND(registered);
-	registered = true;
-
-	mono_add_internal_call("GodotSharpTools.Editor.GodotSharpExport::GetTemplatesDir", (void *)godot_icall_GodotSharpExport_GetTemplatesDir);
-	mono_add_internal_call("GodotSharpTools.Editor.GodotSharpExport::GetDataDirName", (void *)godot_icall_GodotSharpExport_GetDataDirName);
-}
-
-void GodotSharpExport::_export_file(const String &p_path, const String &p_type, const Set<String> &) {
-
-	if (p_type != CSharpLanguage::get_singleton()->get_type())
-		return;
-
-	ERR_FAIL_COND(p_path.get_extension() != CSharpLanguage::get_singleton()->get_extension());
-
-	// TODO what if the source file is not part of the game's C# project
-
-	if (!GLOBAL_GET("mono/export/include_scripts_content")) {
-		// We don't want to include the source code on exported games
-		add_file(p_path, Vector<uint8_t>(), false);
-		skip();
-	}
-}
-
-void GodotSharpExport::_export_begin(const Set<String> &p_features, bool p_debug, const String &p_path, int p_flags) {
-
-	// TODO right now there is no way to stop the export process with an error
-
-	ERR_FAIL_COND(!GDMono::get_singleton()->is_runtime_initialized());
-	ERR_FAIL_NULL(TOOLS_DOMAIN);
-	ERR_FAIL_NULL(GDMono::get_singleton()->get_editor_tools_assembly());
-
-	if (FileAccess::exists(GodotSharpDirs::get_project_sln_path())) {
-		String build_config = p_debug ? "Debug" : "Release";
-
-		String scripts_metadata_path = GodotSharpDirs::get_res_metadata_dir().plus_file("scripts_metadata." + String(p_debug ? "debug" : "release"));
-		Error metadata_err = CSharpProject::generate_scripts_metadata(GodotSharpDirs::get_project_csproj_path(), scripts_metadata_path);
-		ERR_FAIL_COND(metadata_err != OK);
-
-		ERR_FAIL_COND(!_add_file(scripts_metadata_path, scripts_metadata_path));
-
-		// Turn export features into defines
-		Vector<String> godot_defines;
-		for (Set<String>::Element *E = p_features.front(); E; E = E->next()) {
-			godot_defines.push_back(E->get());
-		}
-		ERR_FAIL_COND(!GodotSharpBuilds::build_project_blocking(build_config, godot_defines));
-
-		// Add dependency assemblies
-
-		Map<String, String> dependencies;
-
-		String project_dll_name = ProjectSettings::get_singleton()->get("application/config/name");
-		String project_dll_name_safe = OS::get_singleton()->get_safe_dir_name(project_dll_name);
-		if (project_dll_name_safe.empty()) {
-			project_dll_name_safe = "UnnamedProject";
-		}
-
-		String project_dll_src_dir = GodotSharpDirs::get_res_temp_assemblies_base_dir().plus_file(build_config);
-		String project_dll_src_path = project_dll_src_dir.plus_file(project_dll_name_safe + ".dll");
-		dependencies.insert(project_dll_name_safe, project_dll_src_path);
-
-		{
-			MonoDomain *export_domain = GDMonoUtils::create_domain("GodotEngine.ProjectExportDomain");
-			ERR_FAIL_NULL(export_domain);
-			_GDMONO_SCOPE_EXIT_DOMAIN_UNLOAD_(export_domain);
-
-			_GDMONO_SCOPE_DOMAIN_(export_domain);
+String get_assemblyref_name(MonoImage *p_image, int index) {
+	const MonoTableInfo *table_info = mono_image_get_table_info(p_image, MONO_TABLE_ASSEMBLYREF);
 
-			GDMonoAssembly *scripts_assembly = NULL;
-			bool load_success = GDMono::get_singleton()->load_assembly_from(project_dll_name_safe,
-					project_dll_src_path, &scripts_assembly, /* refonly: */ true);
+	uint32_t cols[MONO_ASSEMBLYREF_SIZE];
 
-			ERR_EXPLAIN("Cannot load assembly (refonly): " + project_dll_name_safe);
-			ERR_FAIL_COND(!load_success);
+	mono_metadata_decode_row(table_info, index, cols, MONO_ASSEMBLYREF_SIZE);
 
-			Vector<String> search_dirs;
-			String templates_dir = EditorSettings::get_singleton()->get_templates_dir().plus_file(VERSION_FULL_CONFIG);
-			String android_bcl_dir = templates_dir.plus_file("android-bcl");
-
-			String custom_lib_dir;
-
-			if (p_features.find("Android") && DirAccess::exists(android_bcl_dir)) {
-				custom_lib_dir = android_bcl_dir;
-			}
-
-			GDMonoAssembly::fill_search_dirs(search_dirs, build_config, custom_lib_dir);
-
-			Error depend_error = _get_assembly_dependencies(scripts_assembly, search_dirs, dependencies);
-			ERR_FAIL_COND(depend_error != OK);
-		}
-
-		for (Map<String, String>::Element *E = dependencies.front(); E; E = E->next()) {
-			String depend_src_path = E->value();
-			String depend_dst_path = GodotSharpDirs::get_res_assemblies_dir().plus_file(depend_src_path.get_file());
-			ERR_FAIL_COND(!_add_file(depend_src_path, depend_dst_path));
-		}
-	}
-
-	// Mono specific export template extras (data dir)
-
-	GDMonoClass *export_class = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Editor", "GodotSharpExport");
-	ERR_FAIL_NULL(export_class);
-	GDMonoMethod *export_begin_method = export_class->get_method("_ExportBegin", 4);
-	ERR_FAIL_NULL(export_begin_method);
-
-	MonoArray *features = mono_array_new(mono_domain_get(), CACHED_CLASS_RAW(String), p_features.size());
-	int i = 0;
-	for (const Set<String>::Element *E = p_features.front(); E; E = E->next()) {
-		MonoString *boxed = GDMonoMarshal::mono_string_from_godot(E->get());
-		mono_array_setref(features, i, boxed);
-		i++;
-	}
-
-	MonoBoolean debug = p_debug;
-	MonoString *path = GDMonoMarshal::mono_string_from_godot(p_path);
-	uint32_t flags = p_flags;
-	void *args[4] = { features, &debug, path, &flags };
-	MonoException *exc = NULL;
-	export_begin_method->invoke_raw(NULL, args, &exc);
-
-	if (exc) {
-		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL();
-	}
-}
-
-bool GodotSharpExport::_add_file(const String &p_src_path, const String &p_dst_path, bool p_remap) {
-
-	FileAccessRef f = FileAccess::open(p_src_path, FileAccess::READ);
-	ERR_FAIL_COND_V(!f, false);
-
-	Vector<uint8_t> data;
-	data.resize(f->get_len());
-	f->get_buffer(data.ptrw(), data.size());
-
-	add_file(p_dst_path, data, p_remap);
-
-	return true;
+	return String::utf8(mono_metadata_string_heap(p_image, cols[MONO_ASSEMBLYREF_NAME]));
 }
 
-Error GodotSharpExport::_get_assembly_dependencies(GDMonoAssembly *p_assembly, const Vector<String> &p_search_dirs, Map<String, String> &r_dependencies) {
-
+Error GodotSharpExport::get_assembly_dependencies(GDMonoAssembly *p_assembly, const Vector<String> &p_search_dirs, Dictionary &r_dependencies) {
 	MonoImage *image = p_assembly->get_image();
 
 	for (int i = 0; i < mono_image_get_table_rows(image, MONO_TABLE_ASSEMBLYREF); i++) {
-		MonoAssemblyName *ref_aname = aname_prealloc;
-		mono_assembly_get_assemblyref(image, i, ref_aname);
-		String ref_name = mono_assembly_name_get_name(ref_aname);
+		String ref_name = get_assemblyref_name(image, i);
 
-		if (r_dependencies.find(ref_name))
+		if (r_dependencies.has(ref_name))
 			continue;
 
 		GDMonoAssembly *ref_assembly = NULL;
@@ -242,9 +90,9 @@ Error GodotSharpExport::_get_assembly_dependencies(GDMonoAssembly *p_assembly, c
 			ERR_FAIL_V(ERR_CANT_RESOLVE);
 		}
 
-		r_dependencies.insert(ref_name, ref_assembly->get_path());
+		r_dependencies[ref_name] = ref_assembly->get_path();
 
-		Error err = _get_assembly_dependencies(ref_assembly, p_search_dirs, r_dependencies);
+		Error err = get_assembly_dependencies(ref_assembly, p_search_dirs, r_dependencies);
 		if (err != OK) {
 			ERR_EXPLAIN("Cannot load one of the dependencies for the assembly: " + ref_name);
 			ERR_FAIL_V(err);
@@ -254,14 +102,22 @@ Error GodotSharpExport::_get_assembly_dependencies(GDMonoAssembly *p_assembly, c
 	return OK;
 }
 
-GodotSharpExport::GodotSharpExport() {
-	// MonoAssemblyName is an incomplete type (internal to mono), so we can't allocate it ourselves.
-	// There isn't any api to allocate an empty one either, so we need to do it this way.
-	aname_prealloc = mono_assembly_name_new("whatever");
-	mono_assembly_name_free(aname_prealloc); // "it does not frees the object itself, only the name members" (typo included)
-}
+Error GodotSharpExport::get_exported_assembly_dependencies(const String &p_project_dll_name, const String &p_project_dll_src_path, const String &p_build_config, const String &p_custom_lib_dir, Dictionary &r_dependencies) {
+	MonoDomain *export_domain = GDMonoUtils::create_domain("GodotEngine.ProjectExportDomain");
+	ERR_FAIL_NULL_V(export_domain, FAILED);
+	_GDMONO_SCOPE_EXIT_DOMAIN_UNLOAD_(export_domain);
+
+	_GDMONO_SCOPE_DOMAIN_(export_domain);
+
+	GDMonoAssembly *scripts_assembly = NULL;
+	bool load_success = GDMono::get_singleton()->load_assembly_from(p_project_dll_name,
+			p_project_dll_src_path, &scripts_assembly, /* refonly: */ true);
+
+	ERR_EXPLAIN("Cannot load assembly (refonly): " + p_project_dll_name);
+	ERR_FAIL_COND_V(!load_success, ERR_CANT_RESOLVE);
+
+	Vector<String> search_dirs;
+	GDMonoAssembly::fill_search_dirs(search_dirs, p_build_config, p_custom_lib_dir);
 
-GodotSharpExport::~GodotSharpExport() {
-	if (aname_prealloc)
-		mono_free(aname_prealloc);
+	return get_assembly_dependencies(scripts_assembly, search_dirs, r_dependencies);
 }
diff --git a/modules/mono/editor/godotsharp_export.h b/modules/mono/editor/godotsharp_export.h
index 4dc8ea75d5..8d121a6bc3 100644
--- a/modules/mono/editor/godotsharp_export.h
+++ b/modules/mono/editor/godotsharp_export.h
@@ -31,29 +31,19 @@
 #ifndef GODOTSHARP_EXPORT_H
 #define GODOTSHARP_EXPORT_H
 
-#include <mono/metadata/image.h>
-
-#include "editor/editor_export.h"
+#include "core/dictionary.h"
+#include "core/error_list.h"
+#include "core/ustring.h"
 
 #include "../mono_gd/gd_mono_header.h"
 
-class GodotSharpExport : public EditorExportPlugin {
-
-	MonoAssemblyName *aname_prealloc;
-
-	bool _add_file(const String &p_src_path, const String &p_dst_path, bool p_remap = false);
-
-	Error _get_assembly_dependencies(GDMonoAssembly *p_assembly, const Vector<String> &p_search_dirs, Map<String, String> &r_dependencies);
-
-protected:
-	virtual void _export_file(const String &p_path, const String &p_type, const Set<String> &p_features);
-	virtual void _export_begin(const Set<String> &p_features, bool p_debug, const String &p_path, int p_flags);
+namespace GodotSharpExport {
 
-public:
-	static void register_internal_calls();
+Error get_exported_assembly_dependencies(const String &p_project_dll_name,
+		const String &p_project_dll_src_path, const String &p_build_config,
+		const String &p_custom_lib_dir, Dictionary &r_dependencies);
+Error get_assembly_dependencies(GDMonoAssembly *p_assembly, const Vector<String> &p_search_dirs, Dictionary &r_dependencies);
 
-	GodotSharpExport();
-	~GodotSharpExport();
-};
+} // namespace GodotSharpExport
 
 #endif // GODOTSHARP_EXPORT_H
diff --git a/modules/mono/editor/mono_bottom_panel.cpp b/modules/mono/editor/mono_bottom_panel.cpp
deleted file mode 100644
index 5d9e39b6c2..0000000000
--- a/modules/mono/editor/mono_bottom_panel.cpp
+++ /dev/null
@@ -1,528 +0,0 @@
-/*************************************************************************/
-/*  mono_bottom_panel.cpp                                                */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "mono_bottom_panel.h"
-
-#include "editor/plugins/script_editor_plugin.h"
-#include "editor/script_editor_debugger.h"
-
-#include "../csharp_script.h"
-#include "../godotsharp_dirs.h"
-#include "csharp_project.h"
-#include "godotsharp_editor.h"
-
-MonoBottomPanel *MonoBottomPanel::singleton = NULL;
-
-void MonoBottomPanel::_update_build_tabs_list() {
-
-	build_tabs_list->clear();
-
-	int current_tab = build_tabs->get_current_tab();
-
-	bool no_current_tab = current_tab < 0 || current_tab >= build_tabs->get_tab_count();
-
-	for (int i = 0; i < build_tabs->get_child_count(); i++) {
-
-		MonoBuildTab *tab = Object::cast_to<MonoBuildTab>(build_tabs->get_child(i));
-
-		if (tab) {
-			String item_name = tab->build_info.solution.get_file().get_basename();
-			item_name += " [" + tab->build_info.configuration + "]";
-
-			build_tabs_list->add_item(item_name, tab->get_icon_texture());
-
-			String item_tooltip = "Solution: " + tab->build_info.solution;
-			item_tooltip += "\nConfiguration: " + tab->build_info.configuration;
-			item_tooltip += "\nStatus: ";
-
-			if (tab->build_exited) {
-				item_tooltip += tab->build_result == MonoBuildTab::RESULT_SUCCESS ? "Succeeded" : "Errored";
-			} else {
-				item_tooltip += "Running";
-			}
-
-			if (!tab->build_exited || tab->build_result == MonoBuildTab::RESULT_ERROR) {
-				item_tooltip += "\nErrors: " + itos(tab->error_count);
-			}
-
-			item_tooltip += "\nWarnings: " + itos(tab->warning_count);
-
-			build_tabs_list->set_item_tooltip(i, item_tooltip);
-
-			if (no_current_tab || current_tab == i) {
-				build_tabs_list->select(i);
-				_build_tabs_item_selected(i);
-			}
-		}
-	}
-}
-
-void MonoBottomPanel::add_build_tab(MonoBuildTab *p_build_tab) {
-
-	build_tabs->add_child(p_build_tab);
-	raise_build_tab(p_build_tab);
-}
-
-void MonoBottomPanel::raise_build_tab(MonoBuildTab *p_build_tab) {
-
-	ERR_FAIL_COND(p_build_tab->get_parent() != build_tabs);
-	build_tabs->move_child(p_build_tab, 0);
-	_update_build_tabs_list();
-}
-
-void MonoBottomPanel::show_build_tab() {
-
-	for (int i = 0; i < panel_tabs->get_tab_count(); i++) {
-		if (panel_tabs->get_tab_control(i) == panel_builds_tab) {
-			panel_tabs->set_current_tab(i);
-			editor->make_bottom_panel_item_visible(this);
-			return;
-		}
-	}
-
-	ERR_PRINT("Builds tab not found");
-}
-
-void MonoBottomPanel::_build_tabs_item_selected(int p_idx) {
-
-	ERR_FAIL_INDEX(p_idx, build_tabs->get_tab_count());
-
-	build_tabs->set_current_tab(p_idx);
-	if (!build_tabs->is_visible())
-		build_tabs->set_visible(true);
-
-	warnings_btn->set_visible(true);
-	errors_btn->set_visible(true);
-	view_log_btn->set_visible(true);
-}
-
-void MonoBottomPanel::_build_tabs_nothing_selected() {
-
-	if (build_tabs->get_tab_count() != 0) { // just in case
-		build_tabs->set_visible(false);
-
-		// This callback is called when clicking on the empty space of the list.
-		// ItemList won't deselect the items automatically, so we must do it ourselves.
-		build_tabs_list->unselect_all();
-	}
-
-	warnings_btn->set_visible(false);
-	errors_btn->set_visible(false);
-	view_log_btn->set_visible(false);
-}
-
-void MonoBottomPanel::_warnings_toggled(bool p_pressed) {
-
-	int current_tab = build_tabs->get_current_tab();
-	ERR_FAIL_INDEX(current_tab, build_tabs->get_tab_count());
-	MonoBuildTab *build_tab = Object::cast_to<MonoBuildTab>(build_tabs->get_child(current_tab));
-	build_tab->warnings_visible = p_pressed;
-	build_tab->_update_issues_list();
-}
-
-void MonoBottomPanel::_errors_toggled(bool p_pressed) {
-
-	int current_tab = build_tabs->get_current_tab();
-	ERR_FAIL_INDEX(current_tab, build_tabs->get_tab_count());
-	MonoBuildTab *build_tab = Object::cast_to<MonoBuildTab>(build_tabs->get_child(current_tab));
-	build_tab->errors_visible = p_pressed;
-	build_tab->_update_issues_list();
-}
-
-void MonoBottomPanel::_build_project_pressed() {
-
-	if (!FileAccess::exists(GodotSharpDirs::get_project_sln_path()))
-		return; // No solution to build
-
-	String scripts_metadata_path_editor = GodotSharpDirs::get_res_metadata_dir().plus_file("scripts_metadata.editor");
-	String scripts_metadata_path_player = GodotSharpDirs::get_res_metadata_dir().plus_file("scripts_metadata.editor_player");
-
-	Error metadata_err = CSharpProject::generate_scripts_metadata(GodotSharpDirs::get_project_csproj_path(), scripts_metadata_path_editor);
-	ERR_FAIL_COND(metadata_err != OK);
-
-	if (FileAccess::exists(scripts_metadata_path_editor)) {
-		DirAccessRef da = DirAccess::create(DirAccess::ACCESS_RESOURCES);
-		Error copy_err = da->copy(scripts_metadata_path_editor, scripts_metadata_path_player);
-
-		ERR_EXPLAIN("Failed to copy scripts metadata file");
-		ERR_FAIL_COND(copy_err != OK);
-	}
-
-	Vector<String> godot_defines;
-	godot_defines.push_back(OS::get_singleton()->get_name());
-	godot_defines.push_back((sizeof(void *) == 4 ? "32" : "64"));
-	bool build_success = GodotSharpBuilds::get_singleton()->build_project_blocking("Tools", godot_defines);
-
-	if (build_success) {
-		// Notify running game for hot-reload
-		ScriptEditor::get_singleton()->get_debugger()->reload_scripts();
-
-		// Hot-reload in the editor
-		MonoReloadNode::get_singleton()->restart_reload_timer();
-
-		if (CSharpLanguage::get_singleton()->is_assembly_reloading_needed()) {
-			CSharpLanguage::get_singleton()->reload_assemblies(false);
-		}
-	}
-}
-
-void MonoBottomPanel::_view_log_pressed() {
-
-	if (build_tabs_list->is_anything_selected()) {
-		Vector<int> selected_items = build_tabs_list->get_selected_items();
-		CRASH_COND(selected_items.size() != 1);
-		int selected_item = selected_items[0];
-
-		MonoBuildTab *build_tab = Object::cast_to<MonoBuildTab>(build_tabs->get_tab_control(selected_item));
-		ERR_FAIL_NULL(build_tab);
-
-		String log_dirpath = build_tab->get_build_info().get_log_dirpath();
-
-		OS::get_singleton()->shell_open(log_dirpath.plus_file(GodotSharpBuilds::get_msbuild_log_filename()));
-	}
-}
-
-void MonoBottomPanel::_notification(int p_what) {
-
-	switch (p_what) {
-
-		case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
-			panel_tabs->add_style_override("panel", editor->get_gui_base()->get_stylebox("DebuggerPanel", "EditorStyles"));
-			panel_tabs->add_style_override("tab_fg", editor->get_gui_base()->get_stylebox("DebuggerTabFG", "EditorStyles"));
-			panel_tabs->add_style_override("tab_bg", editor->get_gui_base()->get_stylebox("DebuggerTabBG", "EditorStyles"));
-		} break;
-	}
-}
-
-void MonoBottomPanel::_bind_methods() {
-
-	ClassDB::bind_method(D_METHOD("_build_project_pressed"), &MonoBottomPanel::_build_project_pressed);
-	ClassDB::bind_method(D_METHOD("_view_log_pressed"), &MonoBottomPanel::_view_log_pressed);
-	ClassDB::bind_method(D_METHOD("_warnings_toggled", "pressed"), &MonoBottomPanel::_warnings_toggled);
-	ClassDB::bind_method(D_METHOD("_errors_toggled", "pressed"), &MonoBottomPanel::_errors_toggled);
-	ClassDB::bind_method(D_METHOD("_build_tabs_item_selected", "idx"), &MonoBottomPanel::_build_tabs_item_selected);
-	ClassDB::bind_method(D_METHOD("_build_tabs_nothing_selected"), &MonoBottomPanel::_build_tabs_nothing_selected);
-}
-
-MonoBottomPanel::MonoBottomPanel(EditorNode *p_editor) {
-
-	singleton = this;
-
-	editor = p_editor;
-
-	set_v_size_flags(SIZE_EXPAND_FILL);
-	set_anchors_and_margins_preset(Control::PRESET_WIDE);
-
-	panel_tabs = memnew(TabContainer);
-	panel_tabs->set_tab_align(TabContainer::ALIGN_LEFT);
-	panel_tabs->add_style_override("panel", editor->get_gui_base()->get_stylebox("DebuggerPanel", "EditorStyles"));
-	panel_tabs->add_style_override("tab_fg", editor->get_gui_base()->get_stylebox("DebuggerTabFG", "EditorStyles"));
-	panel_tabs->add_style_override("tab_bg", editor->get_gui_base()->get_stylebox("DebuggerTabBG", "EditorStyles"));
-	panel_tabs->set_custom_minimum_size(Size2(0, 228) * EDSCALE);
-	panel_tabs->set_v_size_flags(SIZE_EXPAND_FILL);
-	add_child(panel_tabs);
-
-	{ // Builds
-		panel_builds_tab = memnew(VBoxContainer);
-		panel_builds_tab->set_name(TTR("Builds"));
-		panel_builds_tab->set_h_size_flags(SIZE_EXPAND_FILL);
-		panel_tabs->add_child(panel_builds_tab);
-
-		HBoxContainer *toolbar_hbc = memnew(HBoxContainer);
-		toolbar_hbc->set_h_size_flags(SIZE_EXPAND_FILL);
-		panel_builds_tab->add_child(toolbar_hbc);
-
-		Button *build_project_btn = memnew(Button);
-		build_project_btn->set_text(TTR("Build Project"));
-		build_project_btn->set_focus_mode(FOCUS_NONE);
-		build_project_btn->connect("pressed", this, "_build_project_pressed");
-		toolbar_hbc->add_child(build_project_btn);
-
-		toolbar_hbc->add_spacer();
-
-		warnings_btn = memnew(ToolButton);
-		warnings_btn->set_text(TTR("Warnings"));
-		warnings_btn->set_toggle_mode(true);
-		warnings_btn->set_pressed(true);
-		warnings_btn->set_visible(false);
-		warnings_btn->set_focus_mode(FOCUS_NONE);
-		warnings_btn->connect("toggled", this, "_warnings_toggled");
-		toolbar_hbc->add_child(warnings_btn);
-
-		errors_btn = memnew(ToolButton);
-		errors_btn->set_text(TTR("Errors"));
-		errors_btn->set_toggle_mode(true);
-		errors_btn->set_pressed(true);
-		errors_btn->set_visible(false);
-		errors_btn->set_focus_mode(FOCUS_NONE);
-		errors_btn->connect("toggled", this, "_errors_toggled");
-		toolbar_hbc->add_child(errors_btn);
-
-		toolbar_hbc->add_spacer();
-
-		view_log_btn = memnew(Button);
-		view_log_btn->set_text(TTR("View log"));
-		view_log_btn->set_focus_mode(FOCUS_NONE);
-		view_log_btn->set_visible(false);
-		view_log_btn->connect("pressed", this, "_view_log_pressed");
-		toolbar_hbc->add_child(view_log_btn);
-
-		HSplitContainer *hsc = memnew(HSplitContainer);
-		hsc->set_h_size_flags(SIZE_EXPAND_FILL);
-		hsc->set_v_size_flags(SIZE_EXPAND_FILL);
-		panel_builds_tab->add_child(hsc);
-
-		build_tabs_list = memnew(ItemList);
-		build_tabs_list->set_h_size_flags(SIZE_EXPAND_FILL);
-		build_tabs_list->connect("item_selected", this, "_build_tabs_item_selected");
-		build_tabs_list->connect("nothing_selected", this, "_build_tabs_nothing_selected");
-		hsc->add_child(build_tabs_list);
-
-		build_tabs = memnew(TabContainer);
-		build_tabs->set_tab_align(TabContainer::ALIGN_LEFT);
-		build_tabs->set_h_size_flags(SIZE_EXPAND_FILL);
-		build_tabs->set_tabs_visible(false);
-		hsc->add_child(build_tabs);
-	}
-}
-
-MonoBottomPanel::~MonoBottomPanel() {
-
-	singleton = NULL;
-}
-
-void MonoBuildTab::_load_issues_from_file(const String &p_csv_file) {
-
-	FileAccessRef f = FileAccess::open(p_csv_file, FileAccess::READ);
-
-	if (!f)
-		return;
-
-	while (!f->eof_reached()) {
-		Vector<String> csv_line = f->get_csv_line();
-
-		if (csv_line.size() == 1 && csv_line[0].empty())
-			return;
-
-		ERR_CONTINUE(csv_line.size() != 7);
-
-		BuildIssue issue;
-		issue.warning = csv_line[0] == "warning";
-		issue.file = csv_line[1];
-		issue.line = csv_line[2].to_int();
-		issue.column = csv_line[3].to_int();
-		issue.code = csv_line[4];
-		issue.message = csv_line[5];
-		issue.project_file = csv_line[6];
-
-		if (issue.warning)
-			warning_count += 1;
-		else
-			error_count += 1;
-
-		issues.push_back(issue);
-	}
-}
-
-void MonoBuildTab::_update_issues_list() {
-
-	issues_list->clear();
-
-	Ref<Texture> warning_icon = get_icon("Warning", "EditorIcons");
-	Ref<Texture> error_icon = get_icon("Error", "EditorIcons");
-
-	for (int i = 0; i < issues.size(); i++) {
-
-		const BuildIssue &issue = issues[i];
-
-		if (!(issue.warning ? warnings_visible : errors_visible))
-			continue;
-
-		String tooltip;
-		tooltip += String("Message: ") + issue.message;
-
-		if (issue.code.length()) {
-			tooltip += String("\nCode: ") + issue.code;
-		}
-
-		tooltip += String("\nType: ") + (issue.warning ? "warning" : "error");
-
-		String text;
-
-		if (issue.file.length()) {
-			String sline = String::num_int64(issue.line);
-			String scolumn = String::num_int64(issue.column);
-
-			text += issue.file + "(";
-			text += sline + ",";
-			text += scolumn + "): ";
-
-			tooltip += "\nFile: " + issue.file;
-			tooltip += "\nLine: " + sline;
-			tooltip += "\nColumn: " + scolumn;
-		}
-
-		if (issue.project_file.length()) {
-			tooltip += "\nProject: " + issue.project_file;
-		}
-
-		text += issue.message;
-
-		int line_break_idx = text.find("\n");
-		issues_list->add_item(line_break_idx == -1 ? text : text.substr(0, line_break_idx),
-				issue.warning ? warning_icon : error_icon);
-		int index = issues_list->get_item_count() - 1;
-		issues_list->set_item_tooltip(index, tooltip);
-		issues_list->set_item_metadata(index, i);
-	}
-}
-
-Ref<Texture> MonoBuildTab::get_icon_texture() const {
-
-	if (build_exited) {
-		if (build_result == RESULT_ERROR) {
-			return get_icon("StatusError", "EditorIcons");
-		} else {
-			return get_icon("StatusSuccess", "EditorIcons");
-		}
-	} else {
-		return get_icon("Stop", "EditorIcons");
-	}
-}
-
-MonoBuildInfo MonoBuildTab::get_build_info() {
-
-	return build_info;
-}
-
-void MonoBuildTab::on_build_start() {
-
-	build_exited = false;
-
-	issues.clear();
-	warning_count = 0;
-	error_count = 0;
-	_update_issues_list();
-
-	MonoBottomPanel::get_singleton()->raise_build_tab(this);
-}
-
-void MonoBuildTab::on_build_exit(BuildResult result) {
-
-	build_exited = true;
-	build_result = result;
-
-	_load_issues_from_file(logs_dir.plus_file(GodotSharpBuilds::get_msbuild_issues_filename()));
-	_update_issues_list();
-
-	MonoBottomPanel::get_singleton()->raise_build_tab(this);
-}
-
-void MonoBuildTab::on_build_exec_failed(const String &p_cause) {
-
-	build_exited = true;
-	build_result = RESULT_ERROR;
-
-	issues_list->clear();
-
-	BuildIssue issue;
-	issue.message = p_cause;
-	issue.warning = false;
-
-	error_count += 1;
-	issues.push_back(issue);
-
-	_update_issues_list();
-
-	MonoBottomPanel::get_singleton()->raise_build_tab(this);
-}
-
-void MonoBuildTab::restart_build() {
-
-	ERR_FAIL_COND(!build_exited);
-	GodotSharpBuilds::get_singleton()->restart_build(this);
-}
-
-void MonoBuildTab::stop_build() {
-
-	ERR_FAIL_COND(build_exited);
-	GodotSharpBuilds::get_singleton()->stop_build(this);
-}
-
-void MonoBuildTab::_issue_activated(int p_idx) {
-
-	ERR_FAIL_INDEX(p_idx, issues_list->get_item_count());
-
-	// Get correct issue idx from issue list
-	int issue_idx = this->issues_list->get_item_metadata(p_idx);
-
-	ERR_FAIL_INDEX(issue_idx, issues.size());
-
-	const BuildIssue &issue = issues[issue_idx];
-
-	if (issue.project_file.empty() && issue.file.empty())
-		return;
-
-	String project_dir = issue.project_file.length() ? issue.project_file.get_base_dir() : build_info.solution.get_base_dir();
-
-	String file = project_dir.simplify_path().plus_file(issue.file.simplify_path());
-
-	if (!FileAccess::exists(file))
-		return;
-
-	file = ProjectSettings::get_singleton()->localize_path(file);
-
-	if (file.begins_with("res://")) {
-		Ref<Script> script = ResourceLoader::load(file, CSharpLanguage::get_singleton()->get_type());
-
-		if (script.is_valid() && ScriptEditor::get_singleton()->edit(script, issue.line, issue.column)) {
-			EditorNode::get_singleton()->call("_editor_select", EditorNode::EDITOR_SCRIPT);
-		}
-	}
-}
-
-void MonoBuildTab::_bind_methods() {
-
-	ClassDB::bind_method("_issue_activated", &MonoBuildTab::_issue_activated);
-}
-
-MonoBuildTab::MonoBuildTab(const MonoBuildInfo &p_build_info, const String &p_logs_dir) :
-		build_exited(false),
-		issues_list(memnew(ItemList)),
-		error_count(0),
-		warning_count(0),
-		errors_visible(true),
-		warnings_visible(true),
-		logs_dir(p_logs_dir),
-		build_info(p_build_info) {
-	issues_list->set_v_size_flags(SIZE_EXPAND_FILL);
-	issues_list->connect("item_activated", this, "_issue_activated");
-	add_child(issues_list);
-}
diff --git a/modules/mono/editor/mono_bottom_panel.h b/modules/mono/editor/mono_bottom_panel.h
deleted file mode 100644
index 9b362e51df..0000000000
--- a/modules/mono/editor/mono_bottom_panel.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/*************************************************************************/
-/*  mono_bottom_panel.h                                                  */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef MONO_BOTTOM_PANEL_H
-#define MONO_BOTTOM_PANEL_H
-
-#include "editor/editor_node.h"
-#include "scene/gui/control.h"
-
-#include "mono_build_info.h"
-
-class MonoBuildTab;
-
-class MonoBottomPanel : public VBoxContainer {
-
-	GDCLASS(MonoBottomPanel, VBoxContainer);
-
-	EditorNode *editor;
-
-	TabContainer *panel_tabs;
-
-	VBoxContainer *panel_builds_tab;
-
-	ItemList *build_tabs_list;
-	TabContainer *build_tabs;
-
-	ToolButton *warnings_btn;
-	ToolButton *errors_btn;
-	Button *view_log_btn;
-
-	void _update_build_tabs_list();
-
-	void _build_tabs_item_selected(int p_idx);
-	void _build_tabs_nothing_selected();
-
-	void _warnings_toggled(bool p_pressed);
-	void _errors_toggled(bool p_pressed);
-
-	void _build_project_pressed();
-	void _view_log_pressed();
-
-	static MonoBottomPanel *singleton;
-
-protected:
-	void _notification(int p_what);
-
-	static void _bind_methods();
-
-public:
-	_FORCE_INLINE_ static MonoBottomPanel *get_singleton() { return singleton; }
-
-	void add_build_tab(MonoBuildTab *p_build_tab);
-	void raise_build_tab(MonoBuildTab *p_build_tab);
-
-	void show_build_tab();
-
-	MonoBottomPanel(EditorNode *p_editor = NULL);
-	~MonoBottomPanel();
-};
-
-class MonoBuildTab : public VBoxContainer {
-
-	GDCLASS(MonoBuildTab, VBoxContainer);
-
-public:
-	enum BuildResult {
-		RESULT_ERROR,
-		RESULT_SUCCESS
-	};
-
-	struct BuildIssue {
-		bool warning;
-		String file;
-		int line;
-		int column;
-		String code;
-		String message;
-		String project_file;
-	};
-
-private:
-	friend class MonoBottomPanel;
-
-	bool build_exited;
-	BuildResult build_result;
-
-	Vector<BuildIssue> issues;
-	ItemList *issues_list;
-
-	int error_count;
-	int warning_count;
-
-	bool errors_visible;
-	bool warnings_visible;
-
-	String logs_dir;
-
-	MonoBuildInfo build_info;
-
-	void _load_issues_from_file(const String &p_csv_file);
-	void _update_issues_list();
-
-	void _issue_activated(int p_idx);
-
-protected:
-	static void _bind_methods();
-
-public:
-	Ref<Texture> get_icon_texture() const;
-
-	MonoBuildInfo get_build_info();
-
-	void on_build_start();
-	void on_build_exit(BuildResult result);
-	void on_build_exec_failed(const String &p_cause);
-
-	void restart_build();
-	void stop_build();
-
-	MonoBuildTab(const MonoBuildInfo &p_build_info, const String &p_logs_dir);
-};
-
-#endif // MONO_BOTTOM_PANEL_H
diff --git a/modules/mono/editor/mono_build_info.cpp b/modules/mono/editor/mono_build_info.cpp
deleted file mode 100644
index b386c06435..0000000000
--- a/modules/mono/editor/mono_build_info.cpp
+++ /dev/null
@@ -1,62 +0,0 @@
-/*************************************************************************/
-/*  mono_build_info.cpp                                                  */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "mono_build_info.h"
-
-#include "../godotsharp_dirs.h"
-#include "../mono_gd/gd_mono_utils.h"
-
-uint32_t MonoBuildInfo::Hasher::hash(const MonoBuildInfo &p_key) {
-
-	uint32_t hash = 0;
-
-	GDMonoUtils::hash_combine(hash, p_key.solution.hash());
-	GDMonoUtils::hash_combine(hash, p_key.configuration.hash());
-
-	return hash;
-}
-
-bool MonoBuildInfo::operator==(const MonoBuildInfo &p_b) const {
-
-	return p_b.solution == solution && p_b.configuration == configuration;
-}
-
-String MonoBuildInfo::get_log_dirpath() {
-
-	return GodotSharpDirs::get_build_logs_dir().plus_file(solution.md5_text() + "_" + configuration);
-}
-
-MonoBuildInfo::MonoBuildInfo() {}
-
-MonoBuildInfo::MonoBuildInfo(const String &p_solution, const String &p_config) {
-
-	solution = p_solution;
-	configuration = p_config;
-}
diff --git a/modules/mono/editor/monodevelop_instance.cpp b/modules/mono/editor/monodevelop_instance.cpp
deleted file mode 100644
index 3caa56d1d0..0000000000
--- a/modules/mono/editor/monodevelop_instance.cpp
+++ /dev/null
@@ -1,85 +0,0 @@
-/*************************************************************************/
-/*  monodevelop_instance.cpp                                             */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "monodevelop_instance.h"
-
-#include "../mono_gd/gd_mono.h"
-#include "../mono_gd/gd_mono_class.h"
-
-void MonoDevelopInstance::execute(const Vector<String> &p_files) {
-
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
-
-	ERR_FAIL_NULL(execute_method);
-	ERR_FAIL_COND(gc_handle.is_null());
-
-	MonoException *exc = NULL;
-
-	Variant files = p_files;
-	const Variant *args[1] = { &files };
-	execute_method->invoke(gc_handle->get_target(), args, &exc);
-
-	if (exc) {
-		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL();
-	}
-}
-
-void MonoDevelopInstance::execute(const String &p_file) {
-
-	Vector<String> files;
-	files.push_back(p_file);
-	execute(files);
-}
-
-MonoDevelopInstance::MonoDevelopInstance(const String &p_solution, EditorId p_editor_id) {
-
-	_GDMONO_SCOPE_DOMAIN_(TOOLS_DOMAIN)
-
-	GDMonoClass *klass = GDMono::get_singleton()->get_editor_tools_assembly()->get_class("GodotSharpTools.Editor", "MonoDevelopInstance");
-
-	MonoObject *obj = mono_object_new(TOOLS_DOMAIN, klass->get_mono_ptr());
-
-	GDMonoMethod *ctor = klass->get_method(".ctor", 2);
-	MonoException *exc = NULL;
-
-	Variant solution = p_solution;
-	Variant editor_id = p_editor_id;
-	const Variant *args[2] = { &solution, &editor_id };
-	ctor->invoke(obj, args, &exc);
-
-	if (exc) {
-		GDMonoUtils::debug_print_unhandled_exception(exc);
-		ERR_FAIL();
-	}
-
-	gc_handle = MonoGCHandle::create_strong(obj);
-	execute_method = klass->get_method("Execute", 1);
-}
diff --git a/modules/mono/editor/monodevelop_instance.h b/modules/mono/editor/monodevelop_instance.h
deleted file mode 100644
index 3b3af9607b..0000000000
--- a/modules/mono/editor/monodevelop_instance.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*************************************************************************/
-/*  monodevelop_instance.h                                               */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef MONODEVELOP_INSTANCE_H
-#define MONODEVELOP_INSTANCE_H
-
-#include "core/reference.h"
-
-#include "../mono_gc_handle.h"
-#include "../mono_gd/gd_mono_method.h"
-
-class MonoDevelopInstance {
-
-	Ref<MonoGCHandle> gc_handle;
-	GDMonoMethod *execute_method;
-
-public:
-	enum EditorId {
-		MONODEVELOP = 0,
-		VISUALSTUDIO_FOR_MAC = 1
-	};
-
-	void execute(const Vector<String> &p_files);
-	void execute(const String &p_file);
-
-	MonoDevelopInstance(const String &p_solution, EditorId p_editor_id);
-};
-
-#endif // MONODEVELOP_INSTANCE_H