ci: add wafcache to all targets that use Waf, except Android which uses generated CMakeLists instead

.github/workflows/c-cpp.yml

@@ -6,8 +6,21 @@ jobs:
 #    steps:
 #    - name: Cleanup
 #      run: rm -rf .* || true
+  get_prev_runid:
+    runs-on: ubuntu-latest
+    outputs:
+      value: ${{ steps.do.outputs.value }}
+    steps:
+      - id: do
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          value=$(gh run -R ${{ github.repository }} list -b${{ github.ref_name }} -ssuccess -L1 --json databaseId -q'.[0].databaseId')
+          echo "Last run ID is $value"
+          echo "value=$value" >> "$GITHUB_OUTPUT"
   build:
     runs-on: ${{ matrix.os }}
+    needs: get_prev_runid
     continue-on-error: true
     strategy:
       fail-fast: false
@@ -69,11 +82,19 @@ jobs:
       SDL_VERSION: 2.30.11
       GH_CPU_ARCH: ${{ matrix.targetarch }}
       GH_CROSSCOMPILING: ${{ matrix.cross }}
+      WAFCACHE: ${{ github.workspace }}/wafcache/
+      WAFCACHE_EVICT_MAX_BYTES: 1000000 # github only gives 10gb for the whole repository
+      WAFCACHE_STATS: 1 # enable statistics in build log
     steps:
     - name: Checkout
       uses: actions/checkout@v4
       with:
         submodules: recursive
+    - name: Restore cache
+      uses: actions/cache/restore@v4
+      with:
+        key: ${{ runner.os }}-${{ matrix.targetos }}-${{ matrix.targetarch }}-${{ needs.get_prev_runid.outputs.value }}
+        path: ${{ github.workspace }}/wafcache/
     - name: Install dependencies
       run: bash scripts/gha/deps_${{ matrix.targetos }}.sh
     - name: Build engine
@@ -85,6 +106,12 @@ jobs:
       with:
         name: artifact-${{ matrix.targetos }}-${{ matrix.targetarch }}
         path: artifacts/*
+    - name: Save cache
+      uses: actions/cache/save@v4
+      with:
+        path: ${{ github.workspace }}/wafcache/
+        key: ${{ runner.os }}-${{ matrix.targetos }}-${{ matrix.targetarch }}-${{ github.run_id }}
+
   flatpak:
     runs-on: ubuntu-latest
     strategy:

scripts/gha/build_apple.sh

@@ -8,7 +8,7 @@ pushd hlsdk || die
 ./waf configure build install --destdir=../bin || die
 popd
 
-./waf configure --enable-utils --enable-tests --enable-lto build install --destdir=bin || die_configure
+./waf configure --enable-utils --enable-tests --enable-lto --enable-wafcache build --zones=wafcache install --destdir=bin || die_configure
 
 cp -vr /Library/Frameworks/SDL2.framework bin
 

scripts/gha/build_linux.sh

@@ -61,14 +61,14 @@ build_engine()
 	fi
 
 	if [ "$1" = "dedicated" ]; then
-		./waf configure $AMD64 $ENABLE_TESTS --enable-lto --enable-bundled-deps -d || die_configure
+		./waf configure $AMD64 $ENABLE_TESTS --enable-lto --enable-bundled-deps -d --enable-wafcache || die_configure
 	elif [ "$1" = "full" ]; then
-		./waf configure $AMD64 $ENABLE_TESTS --enable-lto --enable-bundled-deps -s SDL2_linux --enable-stb --enable-utils || die_configure
+		./waf configure $AMD64 $ENABLE_TESTS --enable-lto --enable-bundled-deps -s SDL2_linux --enable-stb --enable-utils --enable-wafcache || die_configure
 	else
 		die
 	fi
 
-	./waf build || die_configure
+	./waf build --zones=wafcache || die_configure
 }
 
 deploy_engine()

scripts/gha/build_motomagx.sh

@@ -12,7 +12,7 @@ pushd hlsdk || die
 ./waf configure -T fast --enable-magx --enable-simple-mod-hacks build install --destdir=../Xash || die
 popd
 
-./waf configure -T fast --enable-magx build install --destdir=Xash/ || die
+./waf configure -T fast --enable-magx --enable-wafcache build install --destdir=Xash/ || die
 
 cat > Xash/run.sh << 'EOF'
 mypath=${0%/*}

scripts/gha/build_nswitch.sh

@@ -11,7 +11,7 @@ mkdir -p artifacts/ || die
 
 echo "Running build script in Docker container..."
 
-docker run --name xash-build --rm -v `pwd`:`pwd` -w `pwd` devkitpro/devkita64:latest bash ./scripts/gha/build_nswitch_docker.sh || die
+docker run --name xash-build --rm -v `pwd`:`pwd` -v $HOME/.cache:$HOME/.cache -w `pwd` devkitpro/devkita64:latest bash ./scripts/gha/build_nswitch_docker.sh || die
 
 echo "Packaging artifacts..."
 

scripts/gha/build_nswitch_docker.sh

@@ -42,7 +42,7 @@ make -C libsolder install || die
 
 echo "Building engine..."
 
-./waf configure -T release --nswitch || die_configure
+./waf configure -T release --nswitch --enable-wafcache || die_configure
 ./waf build install --destdir=pkgtemp/xash3d -v || die
 
 echo "Building HLSDK..."

scripts/gha/build_psvita.sh

@@ -44,8 +44,8 @@ popd
 
 echo "Building engine..."
 
-./waf configure -T release --psvita || die_configure
-./waf build install --destdir=pkgtemp/data/xash3d -v || die
+./waf configure -T release --psvita --enable-wafcache || die_configure
+./waf build install --destdir=pkgtemp/data/xash3d || die
 cp build/engine/xash.vpk pkgtemp/
 
 echo "Building HLSDK..."

scripts/gha/build_win32.sh

@@ -12,8 +12,8 @@ fi
 # NOTE: to build with other version use --msvc_version during configuration
 # NOTE: sometimes you may need to add WinSDK to %PATH%
 # NOTE: --enable-msvcdeps only used for CI builds, enabling it non-English versions of MSVC causes useless console spam
-./waf.bat configure -s "SDL2_VC" -T release --enable-utils --enable-tests --enable-lto --enable-msvcdeps $AMD64 || die_configure
-./waf.bat build || die
+./waf.bat configure -s "SDL2_VC" -T release --enable-utils --enable-tests --enable-lto --enable-msvcdeps --enable-wafcache $AMD64 || die_configure
+./waf.bat build --zones=wafcache || die
 ./waf.bat install --destdir=. || die
 
 if [ "$ARCH" = "i386" ]; then