iwyu.yml

#
# Copyright 2025 Antony Peacock
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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#

name: Include What You Use

on: workflow_dispatch

env:
  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
  BUILD_TYPE: Debug
  COMPILER_TYPE: clang
  COMPILER_VERSION: 19
  STDLIB: libc++

jobs:
  build:
    # The CMake configure and build commands are platform agnostic and should work equally
    # well on Windows or Mac.  You can convert this to a matrix build if you need
    # cross-platform coverage.
    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ "ubuntu-latest" ]

    steps:
      - uses: actions/checkout@v4.2.2

      - name: Cache Conan data
        uses: actions/cache@v4.2.2
        env:
          cache-name: cache-conan-data
        with:
          path: ${{github.workspace}}/conan_cache_save.tgz
          key: ${{ hashFiles('**/conanfile.py') }}-build-${{ matrix.os }}-${{ env.BUILD_TYPE }}-${{ env.COMPILER_TYPE }}-${{ env.COMPILER_VERSION }}-${{ env.STDLIB }}
          restore-keys: |
            ${{ hashFiles('**/conanfile.py') }}-build-${{ matrix.os }}-${{ env.BUILD_TYPE }}-${{ env.COMPILER_TYPE }}-${{ env.COMPILER_VERSION }}-
            ${{ hashFiles('**/conanfile.py') }}-build-${{ matrix.os }}-${{ env.BUILD_TYPE }}-${{ env.COMPILER_TYPE }}-
            ${{ hashFiles('**/conanfile.py') }}-build-${{ matrix.os }}-${{ env.BUILD_TYPE }}-
            ${{ hashFiles('**/conanfile.py') }}-build-${{ matrix.os }}-

      - name: Install Clang
        shell: bash
        run: |
          wget https://apt.llvm.org/llvm.sh
          chmod +x llvm.sh
          sudo ./llvm.sh ${{ env.COMPILER_VERSION }} all

      - name: Install Libc++
        shell: bash
        run: |
          sudo apt install -y libc++-${{ env.COMPILER_VERSION }}-dev libc++abi-${{ env.COMPILER_VERSION }}-dev libunwind-${{env.COMPILER_VERSION }}-dev

      - name: Install build dependencies and IWYU
        run: |
          sudo apt update
          sudo apt install -y clang llvm-dev cmake git ninja-build libcurl4-openssl-dev libedit-dev
          # Build and install IWYU
          git clone https://github.com/include-what-you-use/include-what-you-use.git
          cd include-what-you-use
          git checkout clang_${{ env.COMPILER_VERSION }}
          cmake -S . -B build -G Ninja -DCMAKE_PREFIX_PATH=/usr/lib/llvm-${{ env.COMPILER_VERSION }} -DCMAKE_BUILD_TYPE=Release
          cmake --build build
          sudo cmake --install build

      - name: Set up Python
        uses: actions/setup-python@v5.4.0
        with:
          python-version: '3.13'

      - name: Install Python requirements
        run: |
          pip install -r ./requirements.txt

      - name: Configure Conan
        shell: bash
        run: |
            conan profile detect --force
            sed -i.backup '/^\[settings\]$/,/^\[/ s/^compiler.cppstd=.*/compiler.cppstd=23/' .conan2/profiles/default
            sed -i.backup '/^\[settings\]$/,/^\[/ s/^build_type=.*/build_type=${{ env.BUILD_TYPE }}/' .conan2/profiles/default
            sed -i.backup '/^\[settings\]$/,/^\[/ s/^compiler=.*/compiler=${{ env.COMPILER_TYPE }}/' .conan2/profiles/default
            sed -i.backup '/^\[settings\]$/,/^\[/ s/^compiler.version=.*/compiler.version=${{ env.COMPILER_VERSION }}/' .conan2/profiles/default
            sed -i.backup '/^\[settings\]$/,/^\[/ s/^compiler.libcxx=.*/compiler.libcxx=${{ env.STDLIB }}/' .conan2/profiles/default
            sed -i.backup '1a mold*:build_type=Release' .conan2/profiles/default
            sed -i.backup '1a onetbb*:build_type=Release' .conan2/profiles/default
            sed -i.backup '1a mold*:compiler.libcxx=libstdc++11' .conan2/profiles/default

            echo -e "\n[options]" >> .conan2/profiles/default
            sed -i.backup '/^\[options\]/a date*:tz_db=system' .conan2/profiles/default

            cat >> .conan2/global.conf <<EOF
            tools.cmake.cmaketoolchain:generator = Ninja
            tools.system.package_manager:mode = install
            tools.system.package_manager:sudo = True
            tools.build:compiler_executables = {"c": "clang-$COMPILER_VERSION", "cpp": "clang++-$COMPILER_VERSION"}
            EOF

            conan profile show -pr default

      - name: Conan Cache Restore
        shell: bash
        run: |
          if [ -f ./conan_cache_save.tgz ]; then
              conan cache restore ./conan_cache_save.tgz
          fi

      - name: Configure Install
        working-directory: ${{github.workspace}}
        shell: bash
        run: |
          conan install "${{github.workspace}}" --build missing

      - name: Conan Preset
        shell: bash
        run: echo "CONAN_PRESET=conan-$(echo ${{env.BUILD_TYPE}} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV

      - name: Configure CMake
        # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
        # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
        run: |
           source build/${{env.BUILD_TYPE}}/generators/conanbuild.sh
           cmake --preset ${{ env.CONAN_PRESET }} -DIWYU_ENABLE=1

      - name: Build
        # Build your program with the given configuration
        run: |
           source build/${{env.BUILD_TYPE}}/generators/conanbuild.sh
           cmake --build --preset ${{ env.CONAN_PRESET }}

      - name: Conan Cache Save
        run: |
          conan cache clean
          conan cache save "*/*:*"