]

    static void main(String[] commits) {
        println("Commits to check: ${Arrays.toString(commits)}")
        try {
            commits.each { checkCommit(it) }
        } finally {
            THREAD_POOL.shutdown()
        }
    }

    static void checkCommit(String commit) {
        List<String> parentCommits = parentCommitsOf(commit)
        if (parentCommits.size() != 2) {

        run: sudo apt-get install groovy
      - name: List PR commits
        run: |
          git log --pretty=format:"%H" ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }} > pr_commits.txt
      - name: Check PR commits
        id: run_check
        run: |
          groovy .github/workflows/CheckBadMerge.groovy $(<pr_commits.txt) > output.txt 2>&1
      - name: Read output file
        id: read_output

### Creating commits and writing commit messages

The commit messages that accompany your code changes are an important piece of documentation. Please follow these guidelines when creating commits:

* [Write good commit messages.](https://cbea.ms/git-commit/#seven-rules)

    - build-management
    - apache-maven
    - maven
    - hacktoberfest
  enabled_merge_buttons:
    squash: true
    merge: false
    rebase: true
  autolink_jira:
    - MNG
notifications:
  commits: commits@maven.apache.org
  issues: ******@****.***
  pullrequests: ******@****.***

    </mailingList>
    <mailingList>
      <name>Maven Commits List</name>
      <subscribe>commits******@****.***</subscribe>
      <unsubscribe>commits******@****.***</unsubscribe>
      <archive>http://mail-archives.apache.org/mod_mbox/maven-commits</archive>
      <otherArchives>
        <otherArchive>http://www.mail-archive.com/commits@maven.apache.org</otherArchive>

    </mailingList>
    <mailingList>
      <name>Maven Commits List</name>
      <subscribe>commits******@****.***</subscribe>
      <unsubscribe>commits******@****.***</unsubscribe>
      <archive>http://mail-archives.apache.org/mod_mbox/maven-commits</archive>
      <otherArchives>
        <otherArchive>http://www.mail-archive.com/commits@maven.apache.org</otherArchive>

### Contributor Checklist
- [ ] [Review Contribution Guidelines](https://github.com/gradle/gradle/blob/master/CONTRIBUTING.md).
- [ ] Make sure that all commits are [signed off](https://git-scm.com/docs/git-commit#Documentation/git-commit.txt---signoff) to indicate that you agree to the terms of [Developer Certificate of Origin](https://developercertificate.org/).

    /**
     * Whether the <a href="https://www.jetbrains.com/help/teamcity/configuring-vcs-triggers.html">VCS trigger</a>
     * should be enabled, i.e. when new commits are pushed to this branch, should a ReadyForNightly job
     * be triggered automatically?
     *
     * Currently, we only enable VCS trigger for `master`/`release`/`releaseNx` branches.
     */

  # not an official release or release candidate, so get the commit sha
  SHORT_SHA=$(echo "${GATEWAY_VERSION}" | awk -F '-' '{ print $NF }')
  GATEWAY_VERSION=$(curl -s -L -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" "https://api.github.com/repos/kubernetes-sigs/gateway-api/commits/${SHORT_SHA}" | jq -r .sha)
fi
if [ -z "${GATEWAY_VERSION}" ]; then

      - master
  pull_request:
    branches:
      - master

concurrency:
  # On master/release, we don't want any jobs cancelled so the sha is used to name the group
  # On PR branches, we cancel the job if new commits are pushed
  group: ${{ (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/release' ) && format('contributor-pr-base-{0}', github.sha) || format('contributor-pr-{0}', github.ref) }}
  cancel-in-progress: true