commit_message_checker.yml

---
# https://github.com/marketplace/actions/gs-commit-message-checker
name: 'Commit Message Check'
# yamllint disable-line rule:truthy
on: [push, pull_request]

jobs:
  check-commit-message:
    name: Check Commit Message
    runs-on: ubuntu-latest
    steps:
      - name: Check Subject Begining
        uses: gsactions/commit-message-checker@v1
        with:
          pattern: '^([A-Z]|[A-Za-z0-9_/.]+:|git subrepo pull)'
          flags: 'g'
          error: 'The subject does not start with a capital or tag.'
          excludeDescription: 'true'
          excludeTitle: 'true'
          checkAllCommitMessages: 'true'
          accessToken: ${{ secrets.GITHUB_TOKEN }}
      - name: Check Subject Line Length
        uses: gsactions/commit-message-checker@v1
        with:
          pattern: '^.{1,72}(\n|$)'
          flags: 'g'
          error: 'The maximum subject line length of 72 characters is exceeded.'
          excludeDescription: 'true'    # excludes the description body of a pull request
          excludeTitle: 'true'    # excludes the title of a pull request
          excludeMergeCommits: 'true'    # optional: this excludes merge commits
          checkAllCommitMessages: 'true'    # checks all commits associated with a pull request
          accessToken: ${{ secrets.GITHUB_TOKEN }}    # only required if checkAllCommitMessages is true
      - name: Check Empty Line
        uses: gsactions/commit-message-checker@v1
        with:
          pattern: '^.*(\n\n|$)'
          flags: 'g'
          error: 'No newline between title and description.'
          excludeDescription: 'true'
          excludeTitle: 'true'
          checkAllCommitMessages: 'true'
          accessToken: ${{ secrets.GITHUB_TOKEN }}