maintainer_merge_wf_run.yml

name: Maintainer merge (workflow_run)

# triggers the action when
on:
  workflow_run:
    workflows: ["Maintainer merge"]
    types:
      - completed

jobs:
  ping_zulip:
    name: Ping maintainers on Zulip
    runs-on: ubuntu-latest
    if: ${{ github.repository == 'leanprover-community/mathlib4' && github.event.workflow_run.conclusion == 'success' }}
    steps:
      - name: Download artifact
        id: download-artifact
        uses: dawidd6/action-download-artifact@ac66b43f0e6a346234dd65d4d0c8fbb31cb316e5 # v11
        with:
          workflow: maintainer_merge.yml
          name: workflow-data
          path: ./artifacts
          if_no_artifact_found: ignore
          # Use the workflow run that triggered this workflow
          run_id: ${{ github.event.workflow_run.id }}

      - if: ${{ steps.download-artifact.outputs.found_artifact == 'true' }}
        name: Extract data from JSON artifact
        id: extract-data
        run: |
          # Read the JSON artifact file and extract data
          if [ -f "./artifacts/artifact-data.json" ]; then
            echo "JSON artifact found, extracting data..."
            echo "Full JSON artifact content:"
            cat ./artifacts/artifact-data.json

            # Extract specific values using jq
            author=$(jq -r '.author' ./artifacts/artifact-data.json)
            pr_author=$(jq -r '.pr_author' ./artifacts/artifact-data.json)
            pr_number=$(jq -r '.pr_number' ./artifacts/artifact-data.json)
            comment=$(jq -r '.comment' ./artifacts/artifact-data.json)
            pr_title=$(jq -r '.pr_title' ./artifacts/artifact-data.json)
            pr_url=$(jq -r '.pr_url' ./artifacts/artifact-data.json)
            event_name=$(jq -r '.event_name' ./artifacts/artifact-data.json)
            m_or_d=$(jq -r '.m_or_d' ./artifacts/artifact-data.json)

            # Set as step outputs for use in later steps
            {
              echo "author=$author"
              echo "pr_author=$pr_author"
              echo "pr_number=$pr_number"

              echo "comment<<EOF"
              echo "$comment"
              echo "EOF"

              echo "pr_title<<EOF"
              echo "$pr_title"
              echo "EOF"

              echo "pr_url=$pr_url"
              echo "event_name=$event_name"
              echo "mOrD=$m_or_d"
            } | tee -a "$GITHUB_OUTPUT"
          else
            echo "JSON artifact file not found!"
            exit 1
          fi

      - if: ${{ ! steps.extract-data.outputs.mOrD == '' }}
        name: Check whether user is part of mathlib-reviewers team
        uses: tspascoal/get-user-teams-membership@57e9f42acd78f4d0f496b3be4368fc5f62696662 # v3.0.0
        id: actorTeams
        with:
          organization: leanprover-community # optional. Default value ${{ github.repository_owner }}
                  # Organization to get membership from.
          team: 'mathlib-reviewers'
          username: ${{ steps.extract-data.outputs.author }}
          GITHUB_TOKEN: ${{ secrets.MATHLIB_REVIEWERS_TEAM_KEY }} # (Requires scope: `read:org`)

      - name: Checkout
        if: ${{ steps.actorTeams.outputs.isTeamMember == 'true' }}
        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
        with:
          ref: master
          sparse-checkout: |
            scripts/get_tlabel.py
            scripts/maintainer_merge_message.py

      - name: Determine Zulip topic
        if: ${{ steps.actorTeams.outputs.isTeamMember == 'true' }}
        id: determine_topic
        run: |
          ./scripts/get_tlabel.sh "/repos/leanprover-community/mathlib4/issues/${PR_NUMBER}" >> "$GITHUB_OUTPUT"
        env:
          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}
          PR_NUMBER: ${{ steps.extract-data.outputs.pr_number }}

      - name: Form the message
        if: ${{ steps.actorTeams.outputs.isTeamMember == 'true' }}
        id: form_the_message
        run: |
          message="$(
            ./scripts/maintainer_merge_message.sh "${AUTHOR}" "${{ steps.extract-data.outputs.mOrD }}" "${EVENT_NAME}" "${PR_NUMBER}" "${PR_URL}" "${PR_TITLE}" "${COMMENT}" "${PR_AUTHOR}"
          )"
          printf 'title<<EOF\n%s\nEOF' "${message}" | tee "$GITHUB_OUTPUT"
        env:
          AUTHOR: ${{ steps.extract-data.outputs.author }}
          EVENT_NAME: ${{ steps.extract-data.outputs.event_name }}
          PR_NUMBER: ${{ steps.extract-data.outputs.pr_number }}
          PR_URL: ${{ steps.extract-data.outputs.pr_url }}
          PR_TITLE: ${{ steps.extract-data.outputs.pr_title }}
          COMMENT: ${{ steps.extract-data.outputs.comment }}
          PR_AUTHOR: ${{ steps.extract-data.outputs.pr_author }}

      - name: Send message on Zulip
        if: ${{ steps.actorTeams.outputs.isTeamMember == 'true' }}
        uses: zulip/github-actions-zulip/send-message@e4c8f27c732ba9bd98ac6be0583096dea82feea5 # v1.0.2
        with:
          api-key: ${{ secrets.ZULIP_API_KEY }}
          email: 'github-mathlib4-bot@leanprover.zulipchat.com'
          organization-url: 'https://leanprover.zulipchat.com'
          to: 'mathlib reviewers'
          type: 'stream'
          topic: ${{ steps.determine_topic.outputs.topic }}
          content: ${{ steps.form_the_message.outputs.title }}

      - name: Add comment to PR
        if: ${{ steps.actorTeams.outputs.isTeamMember == 'true' }}
        uses: GrantBirki/comment@608e41b19bc973020ec0e189ebfdae935d7fe0cc # v2.1.1
        with:
          # if a comment triggers the action, then `issue.number` is set
          # if a review or review comment triggers the action, then `pull_request.number` is set
          issue-number: ${{ steps.extract-data.outputs.pr_number }}
          body: |
            🚀 Pull request has been placed on the maintainer queue by ${{ steps.extract-data.outputs.author }}.

      - name: Add label to PR
        if: ${{ steps.actorTeams.outputs.isTeamMember == 'true' }}
        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
        with:
          # labels added by GITHUB_TOKEN won't trigger the Zulip emoji workflow
          github-token: ${{secrets.TRIAGE_TOKEN}}
          script: |
            const { owner, repo } = context.repo;
            const issue_number = ${{ steps.extract-data.outputs.pr_number }};
            await github.rest.issues.addLabels({ owner, repo, issue_number, labels: ['maintainer-merge'] });