1 files changed, 112 insertions, 0 deletions
diff --git a/.github/actions/common-setup/action.yml b/.github/actions/common-setup/action.yml
new file mode 100644
index 000000000..60c81b007
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+++ b/.github/actions/common-setup/action.yml
@@ -0,0 +1,112 @@
+name: Common setup
+
+description: Performs setup common to all our actions
+
+inputs:
+  os:
+    required: true
+  runs-on:
+    required: true
+  compiler:
+    required: true
+  platform:
+    required: true
+  config:
+    required: true
+runs:
+  using: composite
+  steps:
+    - name: Set up MSVC dev tools on Windows
+      uses: ilammy/msvc-dev-cmd@v1
+    - name: Set up sccache
+      uses: hendrikmuhs/ccache-action@v1.2
+      with:
+        key: ${{github.job}}-${{inputs.os}}-${{inputs.compiler}}-${{inputs.platform}}-${{inputs.config}}
+        variant: sccache
+    - shell: bash
+      run: |
+        # Set up system dependencies
+
+        # Install Ninja
+        case "${{inputs.os}}" in
+          linux*) sudo apt-get install -y ninja-build;;
+          windows*) choco install ninja;;
+          macos*) brew install ninja;;
+        esac
+
+        # Set compiler
+        CC=${{inputs.compiler}}
+        CXX=${{inputs.compiler}}
+        # infer C++ compiler
+        CXX=${CXX/gcc/g++}
+        CXX=${CXX/clang/clang++}
+        # Correct version on older ubuntu
+        if [[ "${{inputs.runs-on}}" == ubuntu-20.04 ]]; then
+          CC=${CC/gcc/gcc-10}
+          CXX=${CXX/g++/g++-10}
+        fi
+        # Export
+        echo "CC=$CC" >> "$GITHUB_ENV"
+        echo "CXX=$CXX" >> "$GITHUB_ENV"
+
+        # Set CMake to use sccache
+        echo "CMAKE_CXX_COMPILER_LAUNCHER=sccache" >> "$GITHUB_ENV"
+        echo "CMAKE_C_COMPILER_LAUNCHER=sccache" >> "$GITHUB_ENV"
+
+        # Some useful variables
+        config=${{inputs.config}}
+        Config=$(echo "${{inputs.config}}" | sed 's/debug/Debug/;s/release/Release/')
+        bin_dir=$(pwd)/build/$Config/bin
+        lib_dir=$(pwd)/build/$Config/lib
+        echo "config=$config" >> "$GITHUB_ENV"
+        echo "Config=$Config" >> "$GITHUB_ENV"
+        echo "bin_dir=$bin_dir" >> "$GITHUB_ENV"
+        echo "lib_dir=$lib_dir" >> "$GITHUB_ENV"
+
+    # Try to restore a LLVM install, and build it otherwise
+    - uses: actions/cache/restore@v3
+      id: cache-llvm
+      with:
+        path: ${{ github.workspace }}/build/llvm-project-install
+        # Use os*compiler*platform in lieu of an ABI key here, which is what we really want
+        key: ${{ inputs.os }}-${{ inputs.compiler }}-${{ inputs.platform }}-${{ hashFiles('external/build-llvm.sh') }}
+    - name: Build LLVM
+      if: steps.cache-llvm.outputs.cache-hit != 'true'
+      shell: bash
+      run: ./external/build-llvm.sh --install-prefix "${{ github.workspace }}/build/llvm-project-install"
+    - uses: actions/cache/save@v3
+      if: steps.cache-llvm.outputs.cache-hit != 'true'
+      with:
+        path: ${{ github.workspace }}/build/llvm-project-install
+        key: ${{ steps.cache-llvm.outputs.cache-primary-key }}
+    - name: Set environment variable for CMake
+      shell: bash
+      run: |
+        echo "LLVM_DIR=${{ github.workspace }}/build/llvm-project-install" >> "$GITHUB_ENV"
+        echo "Clang_DIR=${{ github.workspace }}/build/llvm-project-install" >> "$GITHUB_ENV"
+
+    # Install swiftshader
+    - uses: robinraju/release-downloader@v1.8
+      continue-on-error: true
+      with:
+        latest: true
+        repository: "shader-slang/swiftshader"
+        out-file-path: "swiftshader"
+        extract: true
+        fileName: "vk_swiftshader_${{inputs.os}}_${{inputs.platform}}.zip"
+
+    - name: Install SwiftShader
+      shell: bash
+      run: |
+        case "${{inputs.os}}" in
+          windows*) echo "${{github.workspace}}/swiftshader/" >> "$GITHUB_PATH";;
+          *) echo "LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+${LD_LIBRARY_PATH}:}${{github.workspace}}/swiftshader" >> "$GITHUB_ENV";;
+        esac
+
+    # Put spirv-tools in path
+    - shell: bash
+      run: |
+        case "${{inputs.os}}" in
+          windows*) echo "${{github.workspace}}/external/slang-binaries/spirv-tools/windows-${{inputs.platform}}/bin" >> "$GITHUB_PATH";;
+          linux*) echo "${{github.workspace}}/external/slang-binaries/spirv-tools/$(uname -m)-linux/bin" >> "$GITHUB_PATH";;
+        esac