Force copy of GDExtension API headers on Windows CI (avoid weird reparse point on reparse point error)

Author: touilleMan

.github/workflows/build.yml

@@ -219,7 +219,7 @@ jobs:
         shell: bash
         run: |
           set -eux
-          ARGS="--build-dir=build/ ${{ steps.setup-godot.outputs.EXTRA_RUN_TESTS_ARGS }} -- --headless"
+          ARGS="--build-dir=build/ ${{ steps.setup-godot.outputs.EXTRA_RUN_TESTS_ARGS }} --custom-gdextension-api=./gdextension_api -- --headless"
           python tests/run.py 0-gdscript $ARGS
           python tests/run.py 1-gdextension $ARGS
           python tests/run.py 2-pythonscript-init $ARGS

tests/run.py

@@ -5,7 +5,7 @@
 import sys
 import platform
 import importlib.util
-from typing import List, Sequence
+from typing import List, Sequence, Optional
 from contextlib import contextmanager
 import argparse
 from pathlib import Path
@@ -114,7 +114,12 @@ def symlink(src: Path, dst: Path) -> None:
         os.symlink(str(src.resolve()), str(dst.resolve()))
 
 
-def create_test_workdir(test_dir: Path, distrib_workdir: Path, test_workdir: Path) -> None:
+def create_test_workdir(
+    test_dir: Path,
+    distrib_workdir: Path,
+    test_workdir: Path,
+    custom_gdextension_api: Optional[Path],
+) -> None:
     print(
         f"{YELLOW}{test_dir.name}: Create&populate test workdir in {test_workdir}{NO_COLOR}",
         flush=True,
@@ -123,7 +128,10 @@ def create_test_workdir(test_dir: Path, distrib_workdir: Path, test_workdir: Pat
     symlink(distrib_workdir / "addons", test_workdir / "addons")
     shutil.copy(distrib_workdir / "pythonscript.gdextension", test_workdir)
     # GDExtension headers are needed to compile Cython modules
-    symlink(build_dir / "gdextension_api", test_workdir / "gdextension_api")
+    if custom_gdextension_api:
+        shutil.copytree(custom_gdextension_api, test_workdir / "gdextension_api")
+    else:
+        symlink(build_dir / "gdextension_api", test_workdir / "gdextension_api")
 
     build_script = test_workdir / "build.py"
     if build_script.exists():
@@ -262,6 +270,11 @@ def run_test(
         action="store_true",
         help="Only update the addons build symlinked into all test projects",
     )
+    parser.add_argument(
+        "--custom-gdextension-api",
+        type=Path,
+        help="Copy GDExtension API folder from there instead of symlink the build one (useful if you have issues on Windows)",
+    )
 
     try:
         options_separator = sys.argv.index("--")
@@ -312,5 +325,6 @@ def test_workdir_factory():
                 test_dir=test_dir,
                 distrib_workdir=distrib_workdir,
                 test_workdir=test_workdir,
+                custom_gdextension_api=args.custom_gdextension_api,
             )
             run_test(test_dir.name, test_workdir, godot_binary_path, godot_extra_args)