check-pr-to-release.yml

name: Check PR to Release

on:
    pull_request:
        types:
            - opened
            - synchronize
            - reopened
        branches:
            - 'release/**'

jobs:
    check_release_branch:
        name: No Commits
        runs-on: ubuntu-latest

        steps:
            - name: Checkout repository
              uses: actions/checkout@v4
              with:
                  ref: ${{ github.event.pull_request.head.sha }}
                  fetch-depth: 0

            - name: Fetch base branch
              run: |
                  git fetch origin ${{ github.event.pull_request.base.ref }}

            - name: Check base branch has no commits since merge base
              env:
                  BASE_BRANCH_HEAD_SHA: ${{ github.event.pull_request.base.sha }}
                  PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
              run: |
                  set -x
                  MERGE_BASE=$(git merge-base $PR_HEAD_SHA $BASE_BRANCH_HEAD_SHA)
                  echo $MERGE_BASE
                  echo $BASE_BRANCH_HEAD_SHA
                  if [ $MERGE_BASE != $BASE_BRANCH_HEAD_SHA ]; then
                    echo "Base branch has commits since merge base"
                    exit 1
                  fi

    check_source_branch:
        name: Check source branch
        runs-on: ubuntu-latest

        steps:
            - name: Assert source branch is RC branch
              if: ${{ !startsWith(github.head_ref, 'rc/') }}
              run: exit 1

    check_release_version:
        name: Check release version
        needs: check_source_branch
        runs-on: ubuntu-latest

        steps:
            - name: Checkout necessary files
              uses: actions/checkout@v4
              with:
                  sparse-checkout: |
                      package.json
                      .github/parse-version/action.yml
                  sparse-checkout-cone-mode: false

            - name: Parse version
              id: version
              uses: ./.github/parse-version

            - name: Assert release version is not pre-release
              if: endsWith(steps.version.outputs.releaseVersion, '-pre')
              run: exit 1

            - name: Assert release version matches RC branch name
              if: format('rc/v{0}', steps.version.outputs.releaseShort) != github.event.pull_request.head.ref
              run: exit 1