action.yml

name: Install Heroku CLI
description: Installs the Heroku CLI
branding:
  icon: 'chevron-right'
  color: 'purple'
runs:
  using: "composite"
  steps:
    - name: Prepare for cache installation
      if: ${{ runner.os == 'Linux' }}
      run: |
        # We need to modify the permissions of /bin/tar and ensure heroku install folder path exists to allow actions/cache to work properly
        sudo chown root /bin/tar && sudo chmod u+s /bin/tar
        sudo mkdir -p /usr/local/lib/heroku/bin

        # Get current year and month to support cache key and ensure the cache is invalidated monthly.
        echo "CURRENT_MONTH=$(date +'%Y-%m')" >> $GITHUB_ENV
      shell: bash
    - name: Restore cache
      if: ${{ runner.os == 'Linux' }}
      id: restore-heroku-cache
      uses: actions/cache@v4
      with:
        path: |
          /usr/local/bin/heroku
          /usr/local/lib/heroku/
        key: ${{ runner.os }}-heroku-cli-${{ env.CURRENT_MONTH }}
    - name: Download and install the CLI
      if: ${{ steps.restore-heroku-cache.outputs.cache-hit != 'true' }}
      run: curl https://cli-assets.heroku.com/install.sh | sh
      shell: bash
    - name: Cleanup
      if: runner.os == 'Linux'
      run: |
        # Remove SUID bit for tar as it is no longer needed
        sudo chmod u-s /bin/tar
      shell: bash