---
name: Git - Check commit message style
on:
  push:
  workflow_dispatch:

permissions: {}

jobs:
  check-commit-message-style:
    name: Check commit message style
    runs-on: ubuntu-latest
    steps:
      # Make sure there are no whitespaces other than space, tab and newline in a commit message.
      - name: Check for unicode whitespaces
        uses: gsactions/commit-message-checker@v2
        with:
          # Pattern matches strings not containing weird unicode whitespace/separator characters
          # \P{Z} = All non-whitespace characters (the u-flag is needed to enable \P{Z})
          # [ \t\n] = Allowed whitespace characters
          pattern: '^(\P{Z}|[ \t\n])+$'
          flags: 'u'
          error: 'Detected unicode whitespace character in commit message.'
          checkAllCommitMessages: 'true' # optional: this checks all commits associated with a pull request
          accessToken: ${{ secrets.GITHUB_TOKEN }} # only required if checkAllCommitMessages is true

      # Git commit messages should follow our guidelines. This action enforces that.
      # Guidelines:  https://github.com/mullvad/coding-guidelines/blob/main/README.md#git
      - name: Check against guidelines
        uses: mristin/opinionated-commit-message@d50df0f84391a481867d2982506853a9a654fc04 #master @ 2025-12-10
        with:
          # Commit messages are allowed to be subject only, no body
          allow-one-liners: 'true'
          # This action defaults to 50 char subjects, but 72 is fine.
          max-subject-line-length: '72'
          # All commit message verbs we have used in this repository up until 2025-12-10 are upstreamed
          # to the action's allowed verb list. Consider if you can easily reword your commit message.
          # Otherwise add your new *imperative verb* here. We then try to upstream all new verbs periodically.
          additional-verbs: 'clone'