action.yaml

name: Setup Swift
inputs:
  swift-version:
    description: 'Swift Version'
    required: true
  version-manifest:
    description: 'YAML file describing Xcode versions'
    required: false
    default: ./.github/actions/setup-swift/versions.yaml
outputs:
  developer_dir:
    description: 'Selected developer dir'
runs:
  using: composite
  steps:
    - name: Select the appropriate version of Xcode
      id: check_xcode_version
      if: runner.os == 'macOS'
      shell: bash
      run: |
        for xcode_version in $(yq ".swift[] | select(.version == \"${{ inputs.swift-version }}\") | .xcode_versions[]" "${{inputs.version-manifest}}" | sort -r); do
          developer_dir="/Applications/Xcode_${xcode_version}.app/Contents/Developer"
          echo "Evaluating Xcode ${xcode_version} at \`${developer_dir}\`"
          if [[ -d "$developer_dir" ]]; then
            echo "Using Xcode ${xcode_version} for Swift ${{ inputs.swift-version }}"
            echo "DEVELOPER_DIR=${developer_dir}" >> $GITHUB_ENV
            echo "developer_dir=${developer_dir}" >> $GITHUB_OUTPUT

            swift_arguments=$(yq ".swift[] | select(.version == \"${{inputs.swift-version}}\") | .swift_arguments" "${{inputs.version-manifest}}")
            if [[ "$swift_arguments" -ne "null" ]]; then
              echo "Requires the use of \"${swift_arguments}\" Swift arguments"
              echo "SWIFT_ARGUMENTS=${swift_arguments}" >> $GITHUB_ENV
              echo "swift_arguments=${swift_arguments}" >> $GITHUB_OUTPUT
            else
              echo "SWIFT_ARGUMENTS=" >> $GITHUB_ENV
              echo "swift_arguments=" >> $GITHUB_OUTPUT
            fi

            exit 0
          fi
        done
        echo "developer_dir=" >> $GITHUB_OUTPUT
    - uses: SwiftyLab/setup-swift@latest
      if: steps.check_xcode_version.outputs.developer_dir == ''
      with:
        swift-version: ${{ inputs.swift-version }}
    - name: Install Linux utilities
      if: runner.os == 'Linux'
      shell: bash
      env:
        HOMEBREW_NO_INSTALL_CLEANUP: YES
        HOMEBREW_NO_ENV_HINTS: YES
      run: |
        eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
        brew install xcbeautify
        echo "HOMEBREW_PREFIX=${HOMEBREW_PREFIX}" >> $GITHUB_ENV
        echo "HOMEBREW_CELLAR=${HOMEBREW_CELLAR}" >> $GITHUB_ENV
        echo "HOMEBREW_REPOSITORY=${HOMEBREW_REPOSITORY}" >> $GITHUB_ENV
        echo "${HOMEBREW_PREFIX}/bin" >> $GITHUB_PATH
        echo "${HOMEBREW_PREFIX}/sbin" >> $GITHUB_PATH
    - name: Get swift version
      shell: bash
      run: swift --version