action.yml

name: Select Xcode
description: Composite action to select a specific Xcode version.

branding:
  icon: code
  color: blue

inputs:
  xcode-version:
    description: The version of Xcode to select
    default: ""
    required: false

runs:
  using: composite
  steps:
    - name: Set XCODE_VERSION to input value
      shell: bash
      if: ${{ inputs.xcode-version != '' }}
      env:
        INPUT_XCODE_VERSION: ${{ inputs.xcode-version }}
      run: |
        echo "XCODE_VERSION=${INPUT_XCODE_VERSION}" >> "$GITHUB_ENV"

    - name: Check file existence
      shell: bash
      id: check_file
      run: |
        if [ -f ".xcode-version" ]; then
          echo "xcode-version-file-exists=1" >> "$GITHUB_OUTPUT"
        else
          echo "xcode-version-file-exists=0" >> "$GITHUB_OUTPUT"
        fi

    - name: Set XCODE_VERSION to .xcode-version value
      shell: bash
      if: ${{ inputs.xcode-version == '' && steps.check_file.outputs.xcode-version-file-exists == '1' }}
      run: |
        echo "XCODE_VERSION=$(tr -d '[:space:]' < .xcode-version)" >> "$GITHUB_ENV"

    - name: Assert XCODE_VERSION env var is defined
      shell: bash
      run: |
        if [ -z "${XCODE_VERSION}" ]; then
          echo "Version of Xcode should be defined as input to the action, in .xcode-version or set as XCODE_VERSION env var." >&2
          exit 1
        fi

    - name: Select Xcode
      shell: bash
      run: |
        sudo xcode-select -s "/Applications/Xcode_${XCODE_VERSION}.app/Contents/Developer"
        xcodebuild -version