auto-cherry-pick-labeled-prs.yaml

---
name: Cherry-pick labeled PRs to OpenMetadata release branch on merge
# yamllint disable-line rule:comments
run-name: OpenMetadata release cherry-pick PR #${{ github.event.pull_request.number }}

# yamllint disable-line rule:truthy
on:
  pull_request:
    types: [closed]
    branches:
      - main
permissions:
  contents: write
  pull-requests: write
env:
  CURRENT_RELEASE_ENDPOINT: ${{ vars.CURRENT_RELEASE_ENDPOINT }}  # Endpoint that returns the current release version in json format
jobs:
  cherry_pick_to_release_branch:
    if: github.event.pull_request.merged == true &&
        contains(github.event.pull_request.labels.*.name, 'To release')
    runs-on: ubuntu-latest  # Running it on ubuntu-latest on purpose (we're not using all the free minutes)
    steps:
      - name: Checkout main branch
        uses: actions/checkout@v4
        with:
          ref: main
          fetch-depth: 0
      - name: Get the release version
        id: get_release_version
        run: |
          CURRENT_RELEASE=$(curl -s $CURRENT_RELEASE_ENDPOINT | jq -r .om_branch)
          echo "CURRENT_RELEASE=${CURRENT_RELEASE}" >> $GITHUB_ENV
      - name: Cherry-pick changes from PR
        id: cherry_pick
        continue-on-error: true
        run: |
          git config --global user.email "release-bot@open-metadata.org"
          git config --global user.name "OpenMetadata Release Bot"
          git fetch origin ${CURRENT_RELEASE}
          git checkout ${CURRENT_RELEASE}
          git cherry-pick -x ${{ github.event.pull_request.merge_commit_sha }}
      - name: Push changes to release branch
        id: push_changes
        continue-on-error: true
        if: steps.cherry_pick.outcome == 'success'
        run: |
          git push origin ${CURRENT_RELEASE}
      - name: Post a comment on failure
        if: steps.cherry_pick.outcome != 'success' || steps.push_changes.outcome != 'success'
        uses: actions/github-script@v7
        with:
          script: |
            const prNumber = context.payload.pull_request.number;
            const releaseVersion = process.env.CURRENT_RELEASE;
            const workflowRunUrl = `${process.env.GITHUB_SERVER_URL}/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID}`;
            github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
              body: `Failed to cherry-pick changes to the ${releaseVersion} branch.
                Please cherry-pick the changes manually.
                You can find more details [here](${workflowRunUrl}).`
            })
      - name: Post a comment on success
        if: steps.cherry_pick.outcome == 'success' && steps.push_changes.outcome == 'success'
        uses: actions/github-script@v7
        with:
          script: |
            const prNumber = context.payload.pull_request.number;
            const releaseVersion = process.env.CURRENT_RELEASE;
            github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
              body: `Changes have been cherry-picked to the ${releaseVersion} branch.`
            })