SCons: Unify tools/target build type configuration

Implements https://github.com/godotengine/godot-proposals/issues/3371.

New `target` presets
====================

The `tools` option is removed and `target` changes to use three new presets,
which match the builds users are familiar with. These targets control the
default optimization level and enable editor-specific and debugging code:

- `editor`: Replaces `tools=yes target=release_debug`.
  * Defines: `TOOLS_ENABLED`, `DEBUG_ENABLED`, `-O2`/`/O2`
- `template_debug`: Replaces `tools=no target=release_debug`.
  * Defines: `DEBUG_ENABLED`, `-O2`/`/O2`
- `template_release`: Replaces `tools=no target=release`.
  * Defines: `-O3`/`/O2`

New `dev_build` option
======================

The previous `target=debug` is now replaced by a separate `dev_build=yes`
option, which can be used in combination with either of the three targets,
and changes the following:

- `dev_build`: Defines `DEV_ENABLED`, disables optimization (`-O0`/`/0d`),
  enables generating debug symbols, does not define `NDEBUG` so `assert()`
  works in thirdparty libraries, adds a `.dev` suffix to the binary name.

Note: Unlike previously, `dev_build` defaults to off so that users who
compile Godot from source get an optimized and small build by default.
Engine contributors should now set `dev_build=yes` in their build scripts or
IDE configuration manually.

Changed binary names
====================

The name of generated binaries and object files are changed too, to follow
this format:

`godot.<platform>.<target>[.dev][.double].<arch>[.<extra_suffix>][.<ext>]`

For example:
- `godot.linuxbsd.editor.dev.arm64`
- `godot.windows.template_release.double.x86_64.mono.exe`

Be sure to update your links/scripts/IDE config accordingly.

More flexible `optimize` and `debug_symbols` options
====================================================

The optimization level and whether to generate debug symbols can be further
specified with the `optimize` and `debug_symbols` options. So the default
values listed above for the various `target` and `dev_build` combinations
are indicative and can be replaced when compiling, e.g.:

`scons p=linuxbsd target=template_debug dev_build=yes optimize=debug`
will make a "debug" export template with dev-only code enabled, `-Og`
optimization level for GCC/Clang, and debug symbols. Perfect for debugging
complex crashes at runtime in an exported project.

1 files changed, 5 insertions, 8 deletions

diff --git a/.github/workflows/windows_builds.yml b/.github/workflows/windows_builds.yml
index 9033e1ab1d..b35c811763 100644
--- a/.github/workflows/windows_builds.yml
+++ b/.github/workflows/windows_builds.yml
@@ -22,19 +22,17 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - name: Editor (target=release_debug, tools=yes, tests=yes)
+          - name: Editor (target=editor, tests=yes)
             cache-name: windows-editor
-            target: release_debug
-            tools: true
+            target: editor
             tests: true
             # Skip debug symbols, they're way too big with MSVC.
             sconsflags: debug_symbols=no
-            bin: "./bin/godot.windows.opt.tools.x86_64.exe"
+            bin: "./bin/godot.windows.editor.x86_64.exe"
 
-          - name: Template (target=release, tools=no)
+          - name: Template (target=template_release, tools=no)
             cache-name: windows-template
-            target: release
-            tools: false
+            target: template_release
             tests: false
             sconsflags: debug_symbols=no
 
@@ -57,7 +55,6 @@ jobs:
           sconsflags: ${{ env.SCONSFLAGS }} ${{ matrix.sconsflags }}
           platform: windows
           target: ${{ matrix.target }}
-          tools: ${{ matrix.tools }}
           tests: ${{ matrix.tests }}
 
       # Execute unit tests for the editor