Use vcpkg LLVM for Windows build

.github/workflows/build.yml

@@ -4,10 +4,19 @@ on:
   push:
   pull_request:
 
+env:
+  BUILDCACHE_VERSION: v0.27.0
+  BUILDCACHE_ACCURACY: STRICT
+  BUILDCACHE_MAX_CACHE_SIZE: 1073741824 # 1GiB
+
 jobs:
   build-linux-x86_64:
     name: Build Linux (GCC x86_64)
     runs-on: ubuntu-20.04
+
+    env:
+      BUILDCACHE_DIR: ${{github.workspace}}/.buildcache
+
     steps:
       - uses: actions/checkout@v2
         with:
@@ -17,22 +26,33 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get -y update
-          sudo apt-get -y install cmake ninja-build ccache llvm-11-dev libclang-11-dev clang-11
+          sudo apt-get -y install cmake ninja-build llvm-11-dev libclang-11-dev clang-11
 
-      - name: Configure ccache
-        uses: hendrikmuhs/ccache-action@v1
+          # setup buildcache
+          curl -LSfs https://github.com/mbitsnbites/buildcache/releases/download/$BUILDCACHE_VERSION/buildcache-linux.tar.gz | tar xz -C "$RUNNER_WORKSPACE"
+          echo "$RUNNER_WORKSPACE"/buildcache/bin >> $GITHUB_PATH
+
+      - name: Restore buildcache
+        uses: actions/cache@v2
         with:
-          key: ubuntu-20.04-gcc
-          max-size: 1G
+          path: ${{env.BUILDCACHE_DIR}}
+          key: buildcache-ubuntu-20.04-x86_64
 
       - name: Configure CMake
         run: |
-          cmake -B build . -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo -DClang_DIR=/usr/lib/cmake/clang-11 \
-            -DATDNA_DYNAMIC_LLVM=OFF -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -B build . -GNinja \
+            -DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo \
+            -DATDNA_DYNAMIC_LLVM=OFF \
+            -DClang_DIR:PATH=/usr/lib/cmake/clang-11 \
+            -DCMAKE_C_COMPILER_LAUNCHER:STRING=buildcache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER:STRING=buildcache
 
       - name: Build
         run: cmake --build build --target package --verbose
 
+      - name: Print buildcache stats
+        run: buildcache -s
+
       - name: Test
         working-directory: build
         run: ./atdna-test
@@ -47,6 +67,7 @@ jobs:
   build-linux-aarch64:
     name: Build Linux (GCC aarch64)
     runs-on: ubuntu-20.04
+
     steps:
       - uses: actions/checkout@v2
         with:
@@ -65,8 +86,10 @@ jobs:
             apt-get -y update
             apt-get -y install build-essential cmake ninja-build llvm-11-dev libclang-11-dev clang-11
           run: |
-            cmake -B build . -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo \
-              -DClang_DIR=/usr/lib/cmake/clang-11 -DATDNA_DYNAMIC_LLVM=OFF
+            cmake -B build . -GNinja \
+              -DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo \
+              -DATDNA_DYNAMIC_LLVM:BOOL=OFF \
+              -DClang_DIR:PATH=/usr/lib/cmake/clang-11
             cmake --build build --target package --verbose
             build/atdna-test
 
@@ -80,6 +103,10 @@ jobs:
   build-macos-universal:
     name: Build macOS (AppleClang universal)
     runs-on: macos-10.15
+
+    env:
+      BUILDCACHE_DIR: ${{github.workspace}}/.buildcache
+
     steps:
       - uses: actions/checkout@v2
         with:
@@ -89,26 +116,38 @@ jobs:
       - name: Install dependencies
         run: |
           brew update
-          brew install ninja ccache
+          brew install ninja
+
           # universal clang+llvm from macports
           curl -LSfs https://axiodl.com/files/clang-11-11.1.0_1.mpkg -o /tmp/clang-11-11.1.0_1.mpkg
           sudo installer -pkg /tmp/clang-11-11.1.0_1.mpkg -target /
 
-      - name: Configure ccache
-        uses: hendrikmuhs/ccache-action@v1
+          # setup buildcache
+          curl -LSfs https://github.com/mbitsnbites/buildcache/releases/download/$BUILDCACHE_VERSION/buildcache-macos.zip -o /tmp/buildcache-macos.zip
+          unzip /tmp/buildcache-macos.zip -d "$RUNNER_WORKSPACE"
+          echo "$RUNNER_WORKSPACE"/buildcache/bin >> $GITHUB_PATH
+
+      - name: Restore buildcache
+        uses: actions/cache@v2
         with:
-          key: macos-10.15-appleclang
-          max-size: 1G
+          path: ${{env.BUILDCACHE_DIR}}
+          key: buildcache-macos-10.15
 
       - name: Configure CMake
         run: |
-          cmake -B build . -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_OSX_ARCHITECTURES="x86_64;arm64" \
-            -DLLVM_ROOT_DIR=/opt/local/libexec/llvm-11 \
-            -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+          cmake -B build . -GNinja \
+            -DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo \
+            -DCMAKE_OSX_ARCHITECTURES:STRING="x86_64;arm64" \
+            -DLLVM_ROOT_DIR:PATH=/opt/local/libexec/llvm-11 \
+            -DCMAKE_C_COMPILER_LAUNCHER:STRING=buildcache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER:STRING=buildcache
 
       - name: Build
         run: cmake --build build --target package --verbose
 
+      - name: Print buildcache stats
+        run: buildcache -s
+
       - name: Test
         working-directory: build
         run: ./atdna-test
@@ -123,8 +162,11 @@ jobs:
   build-win32-amd64:
     name: Build Windows (MSVC AMD64)
     runs-on: windows-2019
+
     env:
-      LLVM_VERSION: 10.0.1
+      LLVM_VERSION: 11.1.0
+      BUILDCACHE_DIR: C:\buildcache
+
     steps:
       - uses: actions/checkout@v2
         with:
@@ -133,28 +175,46 @@ jobs:
 
       - name: Install LLVM
         run: |
-          $TempDir = "$env:RUNNER_WORKSPACE\temp"
-          $Filename = "LLVM-$env:LLVM_VERSION-win64.exe"
+          $TempDir = "C:\temp" # C: has more space
+          $Filename = "vcpkg-llvm-$env:LLVM_VERSION-full.7z"
           New-Item -Path "$TempDir" -ItemType Directory -ea 0
           (New-Object Net.WebClient).DownloadFile("https://axiodl.com/files/$Filename", "$TempDir\$Filename")
-          Start-Process "$TempDir\$Filename" -ArgumentList "/S /D=$env:RUNNER_WORKSPACE\LLVM" -Wait
+          7z x "-o$TempDir" -aos "$TempDir\$Filename"
 
       - name: Install dependencies
-        run: choco install ninja
+        run: |
+          choco install ninja
+
+          # set up buildcache
+          $TempDir = "$env:RUNNER_WORKSPACE\temp"
+          New-Item -Path "$TempDir" -ItemType Directory -ea 0
+          (New-Object Net.WebClient).DownloadFile("https://github.com/mbitsnbites/buildcache/releases/download/$env:BUILDCACHE_VERSION/buildcache-windows.zip", "$TempDir\buildcache.zip")
+          Expand-Archive -LiteralPath "$TempDir\buildcache.zip" -DestinationPath "$TempDir"
+          echo "$TempDir\buildcache\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+      - name: Restore buildcache
+        uses: actions/cache@v2
+        with:
+          path: ${{env.BUILDCACHE_DIR}}
+          key: buildcache-windows-2019-msvc-amd64
 
       - name: Enable Visual Studio environment
         uses: ilammy/msvc-dev-cmd@v1
 
       - name: Configure CMake
         run: |
-          $workspace = $env:RUNNER_WORKSPACE -replace '\\', '/'
-          cmake -B build . -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo `
-            -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded `
-            -DLLVM_ROOT_DIR="$workspace/LLVM"
+          cmake -B build . -GNinja `
+            -DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo `
+            -DCMAKE_MSVC_RUNTIME_LIBRARY:STRING=MultiThreaded `
+            -DCMAKE_TOOLCHAIN_FILE:PATH="C:\temp\vcpkg-llvm-$env:LLVM_VERSION\scripts\buildsystems\vcpkg.cmake" `
+            -DVCPKG_TARGET_TRIPLET:STRING=x64-windows-static
 
       - name: Build
         run: cmake --build build --target package --verbose
 
+      - name: Print buildcache stats
+        run: buildcache -s
+
       - name: Test
         working-directory: build
         run: ./atdna-test.exe
@@ -169,6 +229,7 @@ jobs:
   release:
     name: Release
     runs-on: ubuntu-20.04
+
     if:
       contains('
         refs/heads/master

.gitignore

@@ -21,4 +21,5 @@ PKGBUILD
 /build
 /out
 /cmake-build-*
-/.idea
+/.idea
+/.buildcache

atdna/CMakeLists.txt

@@ -101,9 +101,11 @@ target_include_directories(atdna PRIVATE ${CLANG_INCLUDE_DIRS})
 # Clang 10.0.x headers currently broken with C++20
 set_property(TARGET atdna PROPERTY CXX_STANDARD 17)
 if(MSVC)
-  # Allow linking against release-built LLVM libraries
-  target_compile_options(atdna PRIVATE /GR- /D_ITERATOR_DEBUG_LEVEL=0)
-  set_property(TARGET atdna PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreadedDLL")
+  if (NOT VCPKG_TOOLCHAIN)
+    # Allow linking against release-built LLVM libraries
+    target_compile_options(atdna PRIVATE /GR- /D_ITERATOR_DEBUG_LEVEL=0)
+    set_property(TARGET atdna PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreadedDLL")
+  endif ()
 else()
   target_compile_options(atdna PRIVATE -fno-rtti -fvisibility=hidden -Wno-error)
 endif()