commit-message-check.yml

name: Check commit messages
run-name: Checking commit messages on branch ${{ github.ref }}
on:
  pull_request: # run on every pull request
jobs:
  check-commit-messages:
    runs-on: ubuntu-latest
    steps:
      - name: Check commit messages
        uses: actions/github-script@v7
        with:
          script: |
            const commitPattern = /#[0-9]{4,5}/;

            // Fetch and check each commit in the pull request
            const commits = await github.paginate(github.rest.pulls.listCommits, {
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.payload.pull_request.number
            });

            const invalidCommits = commits.filter(commit => {
              const message = commit.commit.message;
              console.log(`Checking commit ${commit.sha}: ${message}`);
              return !commitPattern.test(message);
            });

            if (invalidCommits.length > 0) {
              core.setFailed(`Invalid commit messages in the following commits:\n${invalidCommits.map(commit => `  - ${commit.sha}: ${commit.commit.message}`).join('\n')}\nCommit messages must include a Tuleap ticket number (e.g., #12345).`);
            }