Improve GH build workflow

- Cache build files
- Use output of `git describe` in output filename

Author: mphe

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
     name: ${{ matrix.platform }} ${{ matrix.target }} ${{ matrix.arch }} ${{ matrix.optimize }}
     env:
-      ARTIFACT_NAME: ${{ matrix.platform }}-${{ matrix.target }}-${{ matrix.arch }}-${{ matrix.optimize }}
+      BUILD_ID: ${{ matrix.platform }}-${{ matrix.target }}-${{ matrix.arch }}-${{ matrix.optimize }}
     strategy:
       fail-fast: false
       matrix:
@@ -128,11 +128,17 @@ jobs:
 #            ${{ matrix.platform }}-${{ github.ref }}
 #            ${{ matrix.platform }}
 
+      - name: Scons Cache
+        id: scons-cache
+        uses: actions/cache@v4
+        with:
+          path: .scons-cache
+          key: ${{ env.BUILD_ID }}
+
       - name: Compile extension
         shell: sh
-#        env:
-#          SCONS_CACHE: '${{ github.workspace }}/.scons-cache/'
-#          SCONS_CACHE_LIMIT: 8192
+        env:
+          SCONS_CACHE: .scons-cache
         run: |
           scons target='${{ matrix.target }}' platform='${{ matrix.platform }}' arch='${{ matrix.arch }}' optimize=${{ matrix.optimize }} -j2
           ls -l demo/addons/*/bin/
@@ -147,15 +153,18 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-artifact@v4
         with:
-          name: build-${{ env.ARTIFACT_NAME }}
+          name: build-${{ env.BUILD_ID }}
           path: |
             ${{ github.workspace }}/demo/
   merge:
     runs-on: ubuntu-latest
     needs: build
     steps:
+      - name: Git describe
+        id: ghd
+        uses: proudust/gh-describe@v2
       - name: Merge Artifacts
         uses: actions/upload-artifact/merge@v4
         with:
-          name: ${{ github.event.repository.name }}
+          name: ${{ github.event.repository.name }}-${{ steps.ghd.outputs.describe }}
           pattern: build-*

.gitignore

@@ -1,3 +1,4 @@
+.scons_cache_debug
 .vim
 *.pyc
 *.idx

SConstruct

@@ -29,6 +29,13 @@ opts.Update(env)
 env.Append(CCFLAGS="-fdiagnostics-color")
 
 
+scons_cache_path = os.environ.get("SCONS_CACHE")
+if scons_cache_path:
+    os.makedirs(scons_cache_path, exist_ok=True)
+    CacheDir(scons_cache_path)
+    print("Using cache dir:", scons_cache_path)
+
+
 # Sources
 env.Append(CPPPATH=["src/"])
 sources = Glob("src/*.cpp")

compile_debug.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-scons compiledb=yes optimize=debug use_llvm=yes
+SCONS_CACHE="$PWD/.scons_cache_debug" scons compiledb=yes optimize=debug use_llvm=yes "$@"

compile_release.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-scons optimize=speed target=template_release
+scons optimize=speed target=template_release "$@"