try to fix caching with pdbs

.github/workflows/gdext.yml

@@ -41,12 +41,12 @@ jobs:
       - name: Build debug
         run: |
           cd gdext
-          scons
+          scons debug_symbols=yes
 
       - name: Build release
         run: |
           cd gdext
-          scons target=template_release
+          scons debug_symbols=yes target=template_release
 
       - name: Upload binaries
         uses: actions/upload-artifact@v4
@@ -182,11 +182,11 @@ jobs:
           rm *.exp
           rm *.lib
 
-      # - name: Upload PDBs
-      #   uses: actions/upload-artifact@v4
-      #   with:
-      #     name: pdbs
-      #     path: addons/imgui-godot/bin/*.pdb
+      - name: Upload PDBs
+        uses: actions/upload-artifact@v4
+        with:
+          name: pdbs
+          path: addons/imgui-godot/bin/*.pdb
 
       - name: Prepare files
         id: prep

gdext/SConstruct

@@ -4,9 +4,18 @@ from pathlib import Path
 import os
 import shutil
 import subprocess
+import SCons
+
+class CustomCacheDir(SCons.CacheDir.CacheDir):
+    @classmethod
+    def copy_to_cache(cls, env, src, dst) -> str:
+        if str(src).startswith("godot-cpp"):
+            return super().copy_to_cache(env, src, dst)
+        else:
+            return None
 
 env = SConscript("godot-cpp/SConstruct")
-env.CacheDir("scons_cache")
+env.CacheDir("scons_cache", CustomCacheDir)
 env.Append(CPPDEFINES=['IMGUI_USER_CONFIG="\\"imconfig-godot.h\\""', "IGN_EXPORT"])
 env.Append(CPPPATH=["src/", "imgui/", "include/", "gen/"])
 env.Replace(CXXFLAGS=str(env["CXXFLAGS"]).replace("c++17", "c++20"))