[Chore] (ci): cache native builds

.github/workflows/apk.yml

@@ -11,6 +11,12 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    env:
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_COMPILERCHECK: content
+      CCACHE_DIR: ${{ github.workspace }}/.ccache/android
+      CCACHE_MAXSIZE: 4G
+      CCACHE_NOHASHDIR: true
 
     steps:
       - name: Checkout repo
@@ -37,6 +43,27 @@ jobs:
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
 
+      - name: Restore Android native SDK packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            /usr/local/lib/android/sdk/ndk/27.3.13750724
+            /usr/local/lib/android/sdk/cmake/3.22.1
+          key: ${{ runner.os }}-android-native-sdk-ndk-27.3.13750724-cmake-3.22.1
+
+      - name: Install ccache
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y ccache
+
+      - name: Restore ccache
+        uses: actions/cache@v4
+        with:
+          path: .ccache/android
+          key: ${{ runner.os }}-apk-ccache-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-apk-ccache-
+
       - name: Install Android NDK
         run: |
           sdkmanager "ndk;27.3.13750724"
@@ -47,14 +74,20 @@ jobs:
         run: python update_glslang_sources.py
 
       - name: Build plugin APKs
-        run: gradle --no-daemon -p android-plugin :app:assembleEsprytPluginRelease :app:assembleMagmaPluginRelease -Pmobilegl.logLevel=MOBILEGL_LOG_LEVEL_INFO --parallel --max-workers "$(nproc)"
+        run: |
+          ccache --zero-stats
+          gradle --no-daemon -p android-plugin :app:assembleEsprytPluginRelease :app:assembleMagmaPluginRelease -Pmobilegl.cmakeCompilerLauncher=ccache -Pmobilegl.logLevel=MOBILEGL_LOG_LEVEL_INFO --parallel --max-workers "$(nproc)"
+          ccache --show-stats
         env:
           SIGNING_STORE_PASSWORD: ${{ secrets.SIGNING_STORE_PASSWORD }}
           SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
           SIGNING_KEY_PASSWORD: ${{ secrets.SIGNING_KEY_PASSWORD }}
 
       - name: Build retrace APKs
-        run: gradle --no-daemon -p android-plugin :app:assembleEsprytTraceRelease :app:assembleMagmaTraceRelease -Pmobilegl.abis=all -Pmobilegl.debuggableRelease=true -Pmobilegl.logLevel=MOBILEGL_LOG_LEVEL_INFO --parallel --max-workers "$(nproc)"
+        run: |
+          ccache --zero-stats
+          gradle --no-daemon -p android-plugin :app:assembleEsprytTraceRelease :app:assembleMagmaTraceRelease -Pmobilegl.cmakeCompilerLauncher=ccache -Pmobilegl.abis=all -Pmobilegl.debuggableRelease=true -Pmobilegl.logLevel=MOBILEGL_LOG_LEVEL_INFO --parallel --max-workers "$(nproc)"
+          ccache --show-stats
         env:
           SIGNING_STORE_PASSWORD: ${{ secrets.SIGNING_STORE_PASSWORD }}
           SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
@@ -380,6 +413,14 @@ jobs:
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
 
+      - name: Restore Android emulator SDK packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            /usr/local/lib/android/sdk/platforms/android-35
+            /usr/local/lib/android/sdk/system-images/android-35/google_apis/x86_64
+          key: ${{ runner.os }}-android-emulator-sdk-api35-google-apis-x86-64
+
       - name: Download retrace APKs
         uses: actions/download-artifact@v4
         with:

.github/workflows/test.yml

@@ -13,6 +13,11 @@ jobs:
     runs-on: ubuntu-latest
     env:
       BUILD_DIR: build-linux
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_COMPILERCHECK: content
+      CCACHE_DIR: ${{ github.workspace }}/.ccache/build-linux
+      CCACHE_MAXSIZE: 2G
+      CCACHE_NOHASHDIR: true
 
     steps:
       - name: Set Swap Space
@@ -42,7 +47,15 @@ jobs:
       - name: Install build dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers ninja-build
+          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers ninja-build ccache
+
+      - name: Restore ccache
+        uses: actions/cache@v4
+        with:
+          path: .ccache/build-linux
+          key: ${{ runner.os }}-test-build-linux-ccache-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-test-build-linux-ccache-
 
       - name: Show installed toolchain
         run: |
@@ -62,6 +75,8 @@ jobs:
           cmake -S . -B "${BUILD_DIR}" -G Ninja \
             -DCMAKE_C_COMPILER=clang-20 \
             -DCMAKE_CXX_COMPILER=clang++-20 \
+            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
             -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
             -DMOBILEGL_LOG_ACTIVE_LEVEL=MOBILEGL_LOG_LEVEL_INFO \
             -DMOBILEGL_BUILD_TEST=ON \
@@ -72,7 +87,10 @@ jobs:
             -DCMAKE_POLICY_VERSION_MINIMUM=3.5
 
       - name: Build
-        run: cmake --build "${BUILD_DIR}" --parallel "$(nproc)"
+        run: |
+          ccache --zero-stats
+          cmake --build "${BUILD_DIR}" --parallel "$(nproc)"
+          ccache --show-stats
 
       - name: Package Linux runtime
         run: |
@@ -194,6 +212,11 @@ jobs:
     env:
       BUILD_DIR: build-retrace
       MOBILEGL_LIBRARY: ${{ github.workspace }}/build-linux/libMobileGL.so
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_COMPILERCHECK: content
+      CCACHE_DIR: ${{ github.workspace }}/.ccache/build-retrace
+      CCACHE_MAXSIZE: 2G
+      CCACHE_NOHASHDIR: true
 
     steps:
       - name: Set Swap Space
@@ -224,7 +247,15 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers ninja-build
+          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers ninja-build ccache
+
+      - name: Restore ccache
+        uses: actions/cache@v4
+        with:
+          path: .ccache/build-retrace
+          key: ${{ runner.os }}-test-build-retrace-ccache-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-test-build-retrace-ccache-
 
       - name: Show installed toolchain
         run: |
@@ -255,6 +286,8 @@ jobs:
           cmake -S . -B "${BUILD_DIR}" -G Ninja \
             -DCMAKE_C_COMPILER=clang-20 \
             -DCMAKE_CXX_COMPILER=clang++-20 \
+            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
             -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
             -DMOBILEGL_LOG_ACTIVE_LEVEL=MOBILEGL_LOG_LEVEL_INFO \
             -DMOBILEGL_BUILD_TEST=OFF \
@@ -264,7 +297,10 @@ jobs:
             -DCMAKE_POLICY_VERSION_MINIMUM=3.5
 
       - name: Build trace replay
-        run: cmake --build "${BUILD_DIR}" --target mobilegl_trace_replay --parallel "$(nproc)"
+        run: |
+          ccache --zero-stats
+          cmake --build "${BUILD_DIR}" --target mobilegl_trace_replay --parallel "$(nproc)"
+          ccache --show-stats
 
       - name: Normalize CTest command paths
         run: |

android-plugin/app/build.gradle

@@ -28,6 +28,9 @@ def mobileGlAbiFilters = {
             .collect { it.trim() }
             .findAll { !it.isEmpty() }
 }
+def mobileGlCmakeCompilerLauncher = {
+    (findProperty('mobilegl.cmakeCompilerLauncher') ?: System.getenv('MOBILEGL_CMAKE_COMPILER_LAUNCHER') ?: '') as String
+}
 
 android {
     namespace 'top.mobilegl.plugin'
@@ -112,6 +115,11 @@ android {
         cmake {
             path file('src/trace/cpp/CMakeLists.txt')
             version '3.22.1'
+            def compilerLauncher = mobileGlCmakeCompilerLauncher()
+            if (!compilerLauncher.isEmpty()) {
+                arguments "-DCMAKE_C_COMPILER_LAUNCHER=${compilerLauncher}",
+                        "-DCMAKE_CXX_COMPILER_LAUNCHER=${compilerLauncher}"
+            }
         }
     }
 

android-plugin/build.gradle

@@ -17,6 +17,9 @@ def mobileGlAbiFilters = {
 def mobileGlLogActiveLevel = {
     (rootProject.findProperty('mobilegl.logLevel') ?: System.getenv('MOBILEGL_LOG_ACTIVE_LEVEL') ?: 'MOBILEGL_LOG_LEVEL_INFO') as String
 }
+def mobileGlCmakeCompilerLauncher = {
+    (rootProject.findProperty('mobilegl.cmakeCompilerLauncher') ?: System.getenv('MOBILEGL_CMAKE_COMPILER_LAUNCHER') ?: '') as String
+}
 
 subprojects { subproject ->
     subproject.plugins.withId('com.android.library') {
@@ -30,6 +33,11 @@ subprojects { subproject ->
                 }
                 externalNativeBuild {
                     cmake {
+                        def compilerLauncher = mobileGlCmakeCompilerLauncher()
+                        if (!compilerLauncher.isEmpty()) {
+                            arguments "-DCMAKE_C_COMPILER_LAUNCHER=${compilerLauncher}",
+                                    "-DCMAKE_CXX_COMPILER_LAUNCHER=${compilerLauncher}"
+                        }
                         cppFlags "-DMOBILEGL_LOG_ACTIVE_LEVEL=${mobileGlLogActiveLevel()}"
                     }
                 }