homebrew-cask/.github/workflows/ci.yml

name: CI

on:
  - pull_request

jobs:
  ci:
    runs-on: macos-latest
    steps:
      - name: Update Homebrew
        id: update_homebrew
        run: |
          set -euo pipefail

          homebrew_repository="$(brew --repository)"

          brew update-reset "${homebrew_repository}"

          echo "::set-output name=homebrew_gems_cache_id::$(shasum -a 256 "${homebrew_repository}/Library/Homebrew/Gemfile.lock" | cut -f1 -d ' ')"
          echo "::set-output name=homebrew_gems_cache_dir::${homebrew_repository}/Library/Homebrew/vendor/bundle/ruby"
      - name: Cache Homebrew Gems
        uses: actions/cache@v2
        with:
          path: ${{ steps.update_homebrew.outputs.homebrew_gems_cache_dir }}
          key: homebrew-gems-cache-${{ steps.update_homebrew.outputs.homebrew_gems_cache_id }}
          restore-keys: homebrew-gems-cache-
      - name: Install Homebrew Gems
        run: brew install-bundler-gems
      - name: Check out Pull Request
        run: |
          set -euo pipefail

          brew tap "${GITHUB_REPOSITORY}"

          # Get latest version of `brew cask ci` command.
          if [ "${GITHUB_REPOSITORY}" != Homebrew/homebrew-cask ]; then
            brew update-reset "$(brew --repository homebrew/cask)"
          fi

          brew update-reset "$(brew --repository "${GITHUB_REPOSITORY}")"

          cd "$(brew --repository "${GITHUB_REPOSITORY}")"
          patch="$(mktemp)"
          curl --silent --show-error --fail --location "${PR_URL}.patch" --output "${patch}"
          git config --global user.name github-actions
          git config --global user.email github-actions@github.com
          git am --whitespace=nowarn "${patch}"
          rm "${patch}"
        env:
          PR_URL: ${{ github.event.pull_request._links.html.href }}
          HOMEBREW_COLOR: 1
          HOMEBREW_DEVELOPER: 1
      - name: brew cask ci
        run: |
          cd "$(brew --repository "${GITHUB_REPOSITORY}")"
          unset HOMEBREW_CASK_OPTS
          brew cask ci
        env:
          HOMEBREW_COLOR: 1
          HOMEBREW_DEVELOPER: 1
          HOMEBREW_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: brew cask style
        run: |
          # don't care about `brew cask style` here.
          brew untap adoptopenjdk/openjdk

          brew cask style
        if: always()