Build Windows release artifact in Gitea

.gitea/workflows/linux-release-build.yml

@@ -1,4 +1,4 @@
-name: Linux release build
+name: Release builds
 
 on:
   push:
@@ -12,7 +12,7 @@ permissions:
   contents: read
 
 concurrency:
-  group: linux-release-${{ gitea.ref }}
+  group: release-builds-${{ gitea.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -95,6 +95,93 @@ jobs:
           if-no-files-found: ignore
           retention-days: 7
 
+  windows-release:
+    name: Windows x64 artifact
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    env:
+      DOTNET_CLI_TELEMETRY_OPTOUT: "1"
+      DOTNET_NOLOGO: "true"
+      NUGET_XMLDOC_MODE: skip
+      PYTHONUTF8: "1"
+      MINGW_CC: x86_64-w64-mingw32-gcc-posix
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.11"
+          architecture: x64
+
+      - name: Set up .NET SDK
+        uses: actions/setup-dotnet@v4
+        with:
+          global-json-file: global.json
+
+      - name: Install MinGW cross-toolchain
+        run: |
+          sudo apt-get update
+          sudo DEBIAN_FRONTEND=noninteractive apt-get install --yes --no-install-recommends \
+            gcc-mingw-w64-x86-64 binutils-mingw-w64-x86-64
+
+      - name: Restore immutable Windows inputs
+        uses: actions/cache@v4
+        with:
+          path: |
+            build/downloads/Godot_*_mono_linux_x86_64.zip
+            build/downloads/ffmpeg-*-win64-lgpl-shared-*.zip
+            build/toolchains/godot-*/xdg-data/godot/export_templates/*/windows_release_x86_64.exe
+          key: windows-release-inputs-${{ hashFiles('tools/godot-linux-x64.json', 'native/age_movie_ffmpeg/dependency-win64.json') }}
+
+      - name: Report toolchain
+        run: |
+          python --version
+          dotnet --version
+          "$MINGW_CC" --version
+          x86_64-w64-mingw32-objdump --version
+          free -h
+          if [ -r /sys/fs/cgroup/memory.max ]; then
+            echo "cgroup memory.max=$(cat /sys/fs/cgroup/memory.max)"
+            echo "cgroup memory.current=$(cat /sys/fs/cgroup/memory.current)"
+          fi
+
+      - name: Cross-build and verify Windows package
+        run: ./tools/build-windows-x64.sh
+
+      - name: Stage verified workflow artifact
+        run: |
+          mkdir -p build/workflow-artifact-windows
+          cp build/package/windows-x64/OpenMaidEngine-Himegari-windows-x64.zip build/workflow-artifact-windows/
+          cp build/package/windows-x64/staging/OpenMaidEngine-Himegari-windows-x64/BUILD-INFO.json build/workflow-artifact-windows/
+          cp build/package/windows-x64/staging/OpenMaidEngine-Himegari-windows-x64/SHA256SUMS build/workflow-artifact-windows/
+          cp build/package/windows-x64/staging/OpenMaidEngine-Himegari-windows-x64/WINDOWS-VERIFICATION.json build/workflow-artifact-windows/
+          cd build/workflow-artifact-windows
+          sha256sum OpenMaidEngine-Himegari-windows-x64.zip > OpenMaidEngine-Himegari-windows-x64.zip.sha256
+
+      - name: Upload verified Windows package
+        uses: christopherhx/gitea-upload-artifact@v4
+        with:
+          name: OpenMaidEngine-Himegari-windows-x64-${{ gitea.sha }}
+          path: build/workflow-artifact-windows/*
+          if-no-files-found: error
+          retention-days: 30
+
+      - name: Upload failure evidence
+        if: failure()
+        uses: christopherhx/gitea-upload-artifact@v4
+        with:
+          name: windows-release-failure-${{ gitea.run_id }}-${{ gitea.run_attempt }}
+          path: |
+            build/native/win-x64/verification.json
+            build/package/windows-x64/staging/OpenMaidEngine-Himegari-windows-x64/WINDOWS-VERIFICATION.json
+            build/validation/**
+          if-no-files-found: ignore
+          retention-days: 7
+
   publish-release:
     name: Publish tagged Gitea release
     if: startsWith(gitea.ref, 'refs/tags/v')