Parallel build and move to checkout v4

Author: haochengxia

.github/workflows/build.yml

@@ -8,52 +8,130 @@ permissions:
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   BUILD_TYPE: Release
+  CACHE_VERSION: v1
 
 jobs:
+  # Detect changes in the codebase
+  changes:
+    runs-on: ubuntu-latest
+    outputs:
+      code-changed: ${{ steps.changes.outputs.code }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            code:
+              - 'libCacheSim/**'
+              - 'test/**'
+              - 'CMakeLists.txt'
+              - 'cmake/**'
+              - 'scripts/**'
+
   macos:
     name: macos / clang
     runs-on: macos-latest
+    needs: changes
+    if: needs.changes.outputs.code-changed == 'true' || github.event_name == 'push'
     steps:
       - uses: actions/checkout@v4
+
+      # Add dependency caching
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            /opt/homebrew/lib
+            /opt/homebrew/include
+          key: ${{ runner.os }}-deps-${{ env.CACHE_VERSION }}-${{ hashFiles('scripts/install_dependency.sh') }}
+          restore-keys: |
+            ${{ runner.os }}-deps-${{ env.CACHE_VERSION }}-
+
       - name: Prepare
         run: bash scripts/install_dependency.sh
+
+      # Add build caching
+      - name: Cache build
+        uses: actions/cache@v4
+        with:
+          path: ${{github.workspace}}/build
+          key: ${{ runner.os }}-build-${{ env.BUILD_TYPE }}-${{ hashFiles('**/CMakeLists.txt', 'cmake/**') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.BUILD_TYPE }}-
+
       - name: Configure CMake
-        run: cmake -G Ninja -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+        run: cmake -G Ninja -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_TESTS=ON
+
       - name: Build
-        run: ninja -C ${{github.workspace}}/build
+        run: ninja -C ${{github.workspace}}/build -j$(sysctl -n hw.logicalcpu)
+
       - name: Test
         working-directory: ${{github.workspace}}/build
         run: |
-          ctest -C ${{env.BUILD_TYPE}} --output-on-failure --parallel
+          ctest -C ${{env.BUILD_TYPE}} --output-on-failure --parallel $(sysctl -n hw.logicalcpu)
 
   ubuntu:
     runs-on: ubuntu-latest
+    needs: changes
+    if: needs.changes.outputs.code-changed == 'true' || github.event_name == 'push'
     steps:
       - uses: actions/checkout@v4
+
+      # Add dependency caching
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/pip
+            /usr/local/lib
+            /var/cache/apt
+          key: ${{ runner.os }}-deps-${{ env.CACHE_VERSION }}-${{ hashFiles('scripts/install_dependency.sh') }}
+          restore-keys: |
+            ${{ runner.os }}-deps-${{ env.CACHE_VERSION }}-
+
       - name: Prepare
         run: bash scripts/install_dependency.sh
+
+      # Add build caching
+      - name: Cache build
+        uses: actions/cache@v4
+        with:
+          path: ${{github.workspace}}/build
+          key: ${{ runner.os }}-build-${{ env.BUILD_TYPE }}-lsan-${{ hashFiles('**/CMakeLists.txt', 'cmake/**') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.BUILD_TYPE }}-lsan-
+
       - name: Configure CMake with LSan
         run: |
           cmake -G Ninja -B ${{github.workspace}}/build \
                 -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} \
                 -DCMAKE_C_FLAGS="-fsanitize=leak" \
-                -DCMAKE_CXX_FLAGS="-fsanitize=leak"
+                -DCMAKE_CXX_FLAGS="-fsanitize=leak" \
+                -DENABLE_TESTS=ON
+
       - name: Build
-        run: ninja -C ${{github.workspace}}/build
+        run: ninja -C ${{github.workspace}}/build -j$(nproc)
+
       - name: Test with LSan
         working-directory: ${{github.workspace}}/build
         run: |
           export ASAN_OPTIONS="detect_leaks=1:halt_on_error=1:verbosity=1"
-          ctest -C ${{env.BUILD_TYPE}} --output-on-failure --parallel
+          ctest -C ${{env.BUILD_TYPE}} --output-on-failure --parallel $(nproc) --timeout 300
 
   selfhosted:
     runs-on: self-hosted
+    needs: changes
+    if: needs.changes.outputs.code-changed == 'true' && github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
       - uses: actions/checkout@v4
+
       - name: Configure CMake
-        run: cmake -G Ninja -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_GLCACHE=on -DENABLE_LRB=on
+        run: cmake -G Ninja -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_GLCACHE=on -DENABLE_LRB=on -DENABLE_TESTS=ON
+
       - name: Build
-        run: ninja -C ${{github.workspace}}/build
+        run: ninja -C ${{github.workspace}}/build -j$(nproc 2>/dev/null || echo 4)
+
       - name: Test
         working-directory: ${{github.workspace}}/build
-        run: ctest -C ${{env.BUILD_TYPE}} --output-on-failure --parallel
+        run: ctest -C ${{env.BUILD_TYPE}} --output-on-failure --parallel $(nproc 2>/dev/null || echo 4) --timeout 300

.github/workflows/code-quality.yml

@@ -7,7 +7,7 @@ jobs:
     name: Code Quality Checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # Fetch all history for proper git diff