Added some obvious errors explanations

1 files changed, 9 insertions, 12 deletions

diff --git a/core/os/dir_access.cpp b/core/os/dir_access.cpp
index b444f0ae1e..e7496055ec 100644
--- a/core/os/dir_access.cpp
+++ b/core/os/dir_access.cpp
@@ -244,7 +244,7 @@ DirAccess *DirAccess::open(const String &p_path, Error *r_error) {
 
 	DirAccess *da = create_for_path(p_path);
 
-	ERR_FAIL_COND_V(!da, NULL);
+	ERR_FAIL_COND_V_MSG(!da, NULL, "Cannot create DirAccess for path '" + p_path + "'.");
 	Error err = da->change_dir(p_path);
 	if (r_error)
 		*r_error = err;
@@ -384,39 +384,36 @@ Error DirAccess::_copy_dir(DirAccess *p_target_da, String p_to, int p_chmod_flag
 		String target_dir = p_to + rel_path;
 		if (!p_target_da->dir_exists(target_dir)) {
 			Error err = p_target_da->make_dir(target_dir);
-			ERR_FAIL_COND_V(err, err);
+			ERR_FAIL_COND_V_MSG(err != OK, err, "Cannot create directory '" + target_dir + "'.");
 		}
 
 		Error err = change_dir(E->get());
-		ERR_FAIL_COND_V(err, err);
+		ERR_FAIL_COND_V_MSG(err != OK, err, "Cannot change current directory to '" + E->get() + "'.");
+
 		err = _copy_dir(p_target_da, p_to + rel_path + "/", p_chmod_flags);
 		if (err) {
 			change_dir("..");
-			ERR_PRINT("Failed to copy recursively");
-			return err;
+			ERR_FAIL_V_MSG(err, "Failed to copy recursively.");
 		}
 		err = change_dir("..");
-		if (err) {
-			ERR_PRINT("Failed to go back");
-			return err;
-		}
+		ERR_FAIL_COND_V_MSG(err != OK, err, "Failed to go back.");
 	}
 
 	return OK;
 }
 
 Error DirAccess::copy_dir(String p_from, String p_to, int p_chmod_flags) {
-	ERR_FAIL_COND_V(!dir_exists(p_from), ERR_FILE_NOT_FOUND);
+	ERR_FAIL_COND_V_MSG(!dir_exists(p_from), ERR_FILE_NOT_FOUND, "Source directory doesn't exist.");
 
 	DirAccess *target_da = DirAccess::create_for_path(p_to);
-	ERR_FAIL_COND_V(!target_da, ERR_CANT_CREATE);
+	ERR_FAIL_COND_V_MSG(!target_da, ERR_CANT_CREATE, "Cannot create DirAccess for path '" + p_to + "'.");
 
 	if (!target_da->dir_exists(p_to)) {
 		Error err = target_da->make_dir_recursive(p_to);
 		if (err) {
 			memdelete(target_da);
 		}
-		ERR_FAIL_COND_V(err, err);
+		ERR_FAIL_COND_V_MSG(err != OK, err, "Cannot create directory '" + p_to + "'.");
 	}
 
 	if (!p_to.ends_with("/")) {