GitHub Actions example workflow — Use Case 2

10-use-case-2.yml

name: upgrade
on:
  repository_dispatch:
    types: [upgrade-formula]
jobs:
  main:
    env:
      FORMULA: ${{ github.event.client_payload.formula }}
      URL: ${{ github.event.client_payload.url }}
      SHA256: ${{ github.event.client_payload.sha256 }}
      TAP_DIR: /usr/local/Homebrew/Library/Taps/weibeld/homebrew-core
    runs-on: macos-latest
    steps:
      - name: check-input
        run: '[[ -n "$FORMULA" && -n "$URL" && -n "$SHA256" ]]'
      - uses: actions/checkout@v2
      - name: install-tap
        run: mkdir -p "${TAP_DIR%/*}" && ln -s "$PWD" "$TAP_DIR"
      - name: determine-old-version
        run:  echo "::set-env name=VERSION_OLD::$(brew info --json k1s | jq -r first.versions.stable)"
      - name: upgrade-formula
        run: brew bump-formula-pr --dry-run --write --url "$URL" --sha256 "$SHA256" "$FORMULA"
      - name: determine-new-version
        run:  echo "::set-env name=VERSION_NEW::$(brew info --json k1s | jq -r first.versions.stable)"
      - name: commit-and-push
        run: |
          git add "Formula/$FORMULA.rb"         
          git config user.name "GitHub Actions"
          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
          git commit -m "Upgrade $FORMULA from $VERSION_OLD to $VERSION_NEW"
          git push