From 8f5bcad244fcd35febbea22e42fc4b9d306a371b Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Fri, 29 Sep 2023 23:38:01 -0700
Subject: [PATCH] [ci] Use sccache for cmake builds (#5692)

---
 .github/workflows/cmake.yml      | 29 ++++++++++++++++++++++++-----
 .github/workflows/sanitizers.yml | 13 ++++++++++---
 2 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index dff4a42ef5..93809039c4 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -25,8 +25,6 @@ jobs:
     runs-on: ${{ matrix.os }}
     container: ${{ matrix.container }}
     steps:
-      - uses: actions/checkout@v3
-
       - name: Install dependencies (Linux)
         if: runner.os == 'Linux'
         run: sudo apt-get update && sudo apt-get install -y libopencv-dev libopencv4.5-java python-is-python3 ninja-build
@@ -41,15 +39,24 @@ jobs:
         with:
           python-version: 3.8
 
+      - name: Run sccache-cache
+        uses: mozilla-actions/sccache-action@v0.0.3
+
       - name: Install jinja
         run: python -m pip install jinja2
 
+      - uses: actions/checkout@v3
+
       - name: configure
-        run: cmake -S . -B build -G "Ninja" ${{ matrix.flags }}
+        run: cmake -S . -B build -G "Ninja" -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache ${{ matrix.flags }}
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       - name: build
         working-directory: build
         run: cmake --build . --parallel $(nproc)
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       - name: test
         working-directory: build
@@ -59,7 +66,6 @@ jobs:
     name: "Build - Windows"
     runs-on: windows-2022
     steps:
-      - uses: actions/checkout@v3
       - uses: ilammy/msvc-dev-cmd@v1
 
       - name: Install CMake
@@ -71,26 +77,39 @@ jobs:
           vcpkgDirectory: ${{ runner.workspace }}/vcpkg
           vcpkgGitCommitId: 78b61582c9e093fda56a01ebb654be15a0033897 # HEAD on 2023-08-6
 
+      - name: Run sccache-cache
+        uses: mozilla-actions/sccache-action@v0.0.3
+
       - name: Install jinja
         run: python -m pip install jinja2
 
+      - uses: actions/checkout@v3
+
       - name: configure
-        run: cmake -S . -B build -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DWITH_JAVA=OFF -DWITH_EXAMPLES=ON -DUSE_SYSTEM_FMTLIB=ON -DUSE_SYSTEM_LIBUV=ON -DUSE_SYSTEM_EIGEN=ON -DCMAKE_TOOLCHAIN_FILE=${{ runner.workspace }}/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_INSTALL_OPTIONS=--clean-after-build -DVCPKG_TARGET_TRIPLET=x64-windows-release -DVCPKG_HOST_TRIPLET=x64-windows-release
+        run: cmake -S . -B build -G "Ninja" -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -DCMAKE_BUILD_TYPE=Release -DWITH_JAVA=OFF -DWITH_EXAMPLES=ON -DUSE_SYSTEM_FMTLIB=ON -DUSE_SYSTEM_LIBUV=ON -DUSE_SYSTEM_EIGEN=ON -DCMAKE_TOOLCHAIN_FILE=${{ runner.workspace }}/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_INSTALL_OPTIONS=--clean-after-build -DVCPKG_TARGET_TRIPLET=x64-windows-release -DVCPKG_HOST_TRIPLET=x64-windows-release
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       # Build wpiutil at full speed, wpimath depends on wpiutil
       - name: build wpiutil
         working-directory: build
         run: cmake --build . --parallel $(nproc) --target wpiutil/all
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       # Build wpimath slow to prevent OOM
       - name: build wpimath
         working-directory: build
         run: cmake --build . --parallel 1 --target wpimath/all
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       # Build everything else fast
       - name: build
         working-directory: build
         run: cmake --build . --parallel $(nproc)
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       - name: test
         working-directory: build
diff --git a/.github/workflows/sanitizers.yml b/.github/workflows/sanitizers.yml
index 3f68a61451..9c5e46efe5 100644
--- a/.github/workflows/sanitizers.yml
+++ b/.github/workflows/sanitizers.yml
@@ -28,20 +28,27 @@ jobs:
     runs-on: ubuntu-22.04
     container: wpilib/roborio-cross-ubuntu:2023-22.04
     steps:
-      - uses: actions/checkout@v3
-
       - name: Install Dependencies
         run: sudo apt-get update && sudo apt-get install -y libopencv-dev libopencv4.5-java python-is-python3 clang-14
 
+      - name: Run sccache-cache
+        uses: mozilla-actions/sccache-action@v0.0.3
+
       - name: Install jinja
         run: python -m pip install jinja2
 
+      - uses: actions/checkout@v3
+
       - name: configure
-        run: mkdir build && cd build && cmake -DCMAKE_C_COMPILER:FILEPATH=/usr/bin/clang-14 -DCMAKE_CXX_COMPILER:FILEPATH=/usr/bin/clang++-14 ${{ matrix.cmake-flags }} ..
+        run: mkdir build && cd build && cmake -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -DCMAKE_C_COMPILER:FILEPATH=/usr/bin/clang-14 -DCMAKE_CXX_COMPILER:FILEPATH=/usr/bin/clang++-14 ${{ matrix.cmake-flags }} ..
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       - name: build
         working-directory: build
         run: cmake --build . --parallel $(nproc)
+        env:
+          SCCACHE_GHA_ENABLED: "true"
 
       - name: test
         working-directory: build