PR Title Prefix Validator

Docker-based GitHub Action that validates pull request titles against a list of allowed prefixes.

Inputs

• allowed-prefixes (required): Comma or newline separated list of allowed title prefixes. Example: feat,fix,chore or:

  feat:
  fix:
  chore:
  

• github-token (optional): GitHub token used to fetch PR data via the API if needed. Defaults to ${{ github.token }}.

Example Usage

name: PR title lint
on:
    pull_request:
        types: [opened, edited, reopened, synchronize]

jobs:
    title-lint:
        runs-on: ubuntu-latest
        steps:
            - uses: actions/checkout@v4
      - uses: ./
        with:
          allowed-prefixes: |
            feat:
            fix:
            chore:
          github-token: ${{ secrets.GITHUB_TOKEN }}