build-pr.yml

name: Build PR

on:
  workflow_dispatch:
    inputs:
      repository:
        required: true
        default: 'conan-io/conan-center-index'
      pr:
        required: true

env:
  GH_TOKEN: ${{ github.token }}
  REPOSITORY: ${{ github.event.inputs.repository }}
  PR: ${{ github.event.inputs.pr }}
  CLICOLOR_FORCE: 1
  FORCE_COLOR: 1

jobs:
  find_modified_package:
    name: Find modified package
    runs-on: ubuntu-latest
    outputs:
      versions: ${{ steps.generate-matrix.outputs.versions }}
      recipe_folder: ${{ steps.find-modified-package.outputs.recipe_folder }}
      package_name: ${{ steps.find-modified-package.outputs.package_name }}
    steps:
    - name: find modified package
      id: find-modified-package
      run: |
        gh pr view -R $REPOSITORY $PR --json files --jq '.files[].path' | while read file
        do
            if [[ $file != recipes/* ]]
            then
                echo file not in recipes: $file
                continue
            fi
            IFS='/' read -ra my_array <<< "$file"
            if [ "${#my_array[@]}" -lt 4 ]
            then
                echo file too short: $file
                continue
            fi
            package_name=${my_array[1]}
            recipe_folder=${my_array[2]}
            echo package_name=$package_name
            echo recipe_folder=$recipe_folder
            echo "package_name=$package_name" >> "$GITHUB_OUTPUT"
            echo "recipe_folder=$recipe_folder" >> "$GITHUB_OUTPUT"
            break
        done
    - uses: actions/setup-python@v5
      with:
        python-version: "3.11"
    - run: pip3 install conan yq
    - uses: actions/checkout@v4
      with:
        repository: ${{ github.event.inputs.repository }}
        sparse-checkout: recipes/${{ steps.find-modified-package.outputs.package_name }}/config.yml
        ref: refs/pull/${{ github.event.inputs.pr }}/merge
    - name: find modified versions
      id: generate-matrix
      run: |
        version_list=$(yq -c '[.versions | to_entries[] | select(.value.folder=="${{ steps.find-modified-package.outputs.recipe_folder }}").key]' recipes/${{ steps.find-modified-package.outputs.package_name }}/config.yml)
        echo version_list=$version_list
        echo "versions=$version_list" >> "$GITHUB_OUTPUT"
    
        
    - run: |
        echo "Building Pull request" >> $GITHUB_STEP_SUMMARY
        echo "- repo: $REPOSITORY" >> $GITHUB_STEP_SUMMARY
        echo "- PR: #$PR" >> $GITHUB_STEP_SUMMARY
        echo "- package: ${{ steps.find-modified-package.outputs.package_name }}" >> $GITHUB_STEP_SUMMARY
        echo "- recipe folder: ${{ steps.find-modified-package.outputs.recipe_folder }}" >> $GITHUB_STEP_SUMMARY
        echo "- versions: ${{ steps.generate-matrix.outputs.versions }}" >> $GITHUB_STEP_SUMMARY


  
  _:
    runs-on: ${{ matrix.os }}
    needs:
      - find_modified_package
    name: ${{ needs.find_modified_package.outputs.package_name }}/${{ matrix.version }} ${{ matrix.shared }} ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest, macos-11]
        shared: ["True", "False"]
        version: ${{ fromJSON(needs.find_modified_package.outputs.versions) }}
    continue-on-error: true
    env:
      NOT_ON_C3I: 1
      GH_TOKEN: ${{ github.token }}
      REPOSITORY: ${{ github.event.inputs.repository }}
      PR: ${{ github.event.inputs.pr }}
    steps:    
      - uses: actions/checkout@v4
        with:
          repository: ${{ github.event.inputs.repository }}
          sparse-checkout: recipes/${{ needs.find_modified_package.outputs.package_name }}/${{ needs.find_modified_package.outputs.recipe_folder }}
          ref: refs/pull/${{ github.event.inputs.pr }}/merge
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
      - run: pip3 install conan yq

      - name: set conan home
        if: ${{ runner.os == 'Windows' }}
        shell: bash
        run: echo "CONAN_HOME=${{ runner.temp }}\\.c2" >> $GITHUB_ENV
        
      - run: conan profile detect --force
        shell: bash
          
      - name: conan create
        id: conan_create
        shell: bash
        env:
          CONAN_SYSREQUIRES_MODE: enabled
        run: |
        
          echo "| os | shared | cppstd | version | result |" >> $GITHUB_STEP_SUMMARY
          echo "| -- | ------ | ------ | ------- | ------ |" >> $GITHUB_STEP_SUMMARY
          PROFILE_PATH=$(conan profile path default)
          COMPILER=$(awk -F "=" '/^compiler=/ {print $2}' $PROFILE_PATH)
          COMPILER_VERSION=$(awk -F "=" '/^compiler.version=/ {print $2}' $PROFILE_PATH)
          echo "$PROFILE_PATH $COMPILER $COMPILER_VERSION"
          CPP_STDS=$(curl https://github.com/conan-io/conan-center-index/raw/master/.c3i/config_v2.yml -L | yq -r -c .cppstd.\"$COMPILER\".\"$COMPILER_VERSION\"[])
          for cpp_std in $CPP_STDS; do
              cpp_std=$(echo $cpp_std | tr -d '[:space:]')
              conan_command="-s:a compiler.cppstd=$cpp_std --version ${{ matrix.version }} recipes/${{ needs.find_modified_package.outputs.package_name }}/${{ needs.find_modified_package.outputs.recipe_folder }} -o */*:shared=${{ matrix.shared }} -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True"
              set +e
              conan create $conan_command 2> >(tee conan_output >&2)
              code=${PIPESTATUS[0]}
              set -e
              echo $code
              case $code in
                0)
                  ICON=":white_check_mark:"
                  ;;
                6)
                  ICON=":arrow_right_hook:"
                  ;;
                1)
                  ICON=":x:"
                  ;;
                *)
                  ICON=":interrobang: $code"
                  ;;
              esac
              if grep -Fq "conan graph explain" conan_output; then
                conan graph explain $conan_command
              fi
              if grep -Fq "conan graph info" conan_output; then
                conan graph info $conan_command --format=html >graph.html
              fi
              echo "| ${{ matrix.os }} | ${{ matrix.shared }} | $cpp_std | ${{ matrix.version }} | $ICON |" >> $GITHUB_STEP_SUMMARY
              if [ $code -ne 6 ]; then
                  exit "$code"
              fi
          done
          exit 0
  
      - uses: actions/upload-artifact@v4
        if: ${{ failure() && steps.conan_create.conclusion == 'failure' }}
        with:
          name: graph_${{ needs.find_modified_package.outputs.package_name }}_${{ matrix.version }}_${{ matrix.shared }}_${{ matrix.os }}
          path: graph.html
          if-no-files-found: ignore

  Post_Result:
    name: Post results
    needs: [_]
    runs-on: ubuntu-latest
    if: ${{ !cancelled() }}
    steps:
      - run: GH_TOKEN=${{ secrets.GH_TOKEN }} gh issue comment -R $REPOSITORY $PR -b "The build is now finished. You can take a look at the results [here](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}/attempts/${{ github.run_attempt }})"