GHA: Split & package debug symbols for GDExtension editor libs

.github/workflows/gdextension.yml

@@ -15,7 +15,7 @@ on:
         type: boolean
         default: false
       debug-symbols:
-        description: All builds with debug symbols
+        description: Build with debug symbols
         type: boolean
         default: false
 
@@ -34,15 +34,16 @@ on:
         type: boolean
         default: false
       debug-symbols:
-        description: All builds with debug symbols
+        description: Build with debug symbols
         type: boolean
         default: false
 
 # Global Settings
 env:
   SCONS_CACHE_LIMIT: 4096
-  SCONSFLAGS: dev_build=no verbose=yes
+  SCONSFLAGS: use_mingw=yes dev_build=no verbose=yes
   EM_VERSION: 3.1.45
+  EM_CACHE_FOLDER: "emsdk-cache"
   GODOT_VERSION: 4.3-stable
 
 jobs:
@@ -74,7 +75,7 @@ jobs:
             should-build: true
 
           - name: 🪟 Windows (x86_64, release)
-            runner: windows-latest
+            runner: ubuntu-latest
             platform: windows
             target: template_release
             arch: x86_64
@@ -83,7 +84,7 @@ jobs:
             should-build: true
 
           - name: 🪟 Windows (x86_64, debug)
-            runner: windows-latest
+            runner: ubuntu-latest
             platform: windows
             target: editor
             arch: x86_64
@@ -275,14 +276,21 @@ jobs:
           python-version: "3.x"
           architecture: "x64"
 
-      - name: Set up Emscripten (Web)
+      - name: Set up Emscripten cache
+        if: matrix.opts.platform == 'web'
+        uses: actions/cache@v4
+        with:
+          path: ${{env.EM_CACHE_FOLDER}}
+          key: ${{env.EM_VERSION}}-${{runner.os}}-libs
+
+      - name: Set up Emscripten
         if: matrix.opts.platform == 'web'
         uses: mymindstorm/setup-emsdk@v14
         with:
           version: ${{env.EM_VERSION}}
-          no-cache: true
+          actions-cache-folder: ${{env.EM_CACHE_FOLDER}}
 
-      - name: Verify Emscripten setup (Web)
+      - name: Verify Emscripten setup
         if: matrix.opts.platform == 'web'
         run: |
           emcc -v
@@ -295,7 +303,7 @@ jobs:
           python --version
           scons --version
 
-      - name: Set up Java 17 (Android)
+      - name: Set up Java 17
         if: matrix.opts.platform == 'android'
         uses: actions/setup-java@v4
         with:
@@ -309,14 +317,6 @@ jobs:
           ndk-version: r23c
           link-to-sdk: true
 
-      - name: Set up MSVC problem matcher (Windows)
-        if: matrix.opts.platform == 'windows'
-        uses: ammaraskar/msvc-problem-matcher@1ebcb382869bfdc2cc645e8a2a43b6d319ea1cc0 # 0.3.0
-
-      - name: Set up GCC problem matcher (Linux)
-        if: matrix.opts.platform == 'linux'
-        uses: ammaraskar/gcc-problem-matcher@0f9c86f9e693db67dacf53986e1674de5f2e5f28 # 0.3.0
-
       - name: Set up scons cache
         if: inputs.test-build # ! Only cache test/PR builds
         uses: actions/cache@v4
@@ -328,6 +328,12 @@ jobs:
             ${{matrix.opts.bin}}-${{matrix.opts.debug-symbols}}-${{inputs.godot-cpp-ref}}-${{inputs.limboai-ref}}
             ${{matrix.opts.bin}}-${{matrix.opts.debug-symbols}}-${{inputs.godot-cpp-ref}}
 
+      - name: Set up MinGW
+        if: matrix.opts.platform == 'windows'
+        run: |
+          sudo apt update
+          sudo apt install g++-mingw-w64-x86-64-posix
+
       - name: Compilation
         shell: bash
         env:
@@ -348,6 +354,16 @@ jobs:
           readelf --debug-dump=links ${{matrix.opts.bin}}
           nm ${{matrix.opts.bin}}
 
+      - name: Split debug symbols (Windows)
+        if: matrix.opts.debug-symbols && matrix.opts.platform == 'windows'
+        shell: bash
+        run: |
+          cd demo/addons/limboai/bin/
+          x86_64-w64-mingw32-objcopy --only-keep-debug ${{matrix.opts.bin}} ${{matrix.opts.bin}}.debug
+          x86_64-w64-mingw32-objcopy --add-gnu-debuglink ${{matrix.opts.bin}}.debug ${{matrix.opts.bin}}
+          x86_64-w64-mingw32-strip --strip-debug ${{matrix.opts.bin}}
+          x86_64-w64-mingw32-nm ${{matrix.opts.bin}}
+
       - name: Split debug symbols (macOS & iOS)
         if: matrix.opts.debug-symbols && (matrix.opts.platform == 'macos' || matrix.opts.platform == 'ios')
         shell: bash