.github/workflows/trymerge.yml

name: Validate and merge PR

on:
  repository_dispatch:
    types: [try-merge]

jobs:
  do_merge:
    name: try_merge_pr_${{ github.event.client_payload.pr_num }}
    runs-on: linux.20_04.4x
    env:
        GH_RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
    steps:
      - name: Checkout repo
        id: checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          token: ${{ secrets.MERGEBOT_TOKEN }}

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.8'
          check-latest: false
          cache: pip
          architecture: x64
      - run: pip install pyyaml==6.0

      - name: Setup committer id
        run: |
          git config --global user.email "pytorchmergebot@users.noreply.github.com"
          git config --global user.name "PyTorch MergeBot"
      - name: Merge PR
        env:
          GITHUB_TOKEN: ${{ secrets.MERGEBOT_TOKEN }}
          PR_NUM: ${{ github.event.client_payload.pr_num }}
          FORCE: ${{ github.event.client_payload.force}}
          ON_GREEN: ${{ github.event.client_payload.on_green}}
          LAND_CHECKS: ${{ github.event.client_payload.land_checks }}
          COMMENT_ID: ${{ github.event.client_payload.comment_id }}
          REBASE: ${{ github.event.client_payload.rebase }}
        run: |
          set -ex
          if [ -n "${REBASE}" ]; then
            python3 .github/scripts/tryrebase.py "${PR_NUM}" --branch "${REBASE}"
            git checkout master
            git fetch -p
            # give github some time between the push and start workflows so that Github's messages
            # on the PR appear in chronological order (timing issues can shuffle them around)
            sleep 60
          fi
          if [ -n "${FORCE}" ]; then
            if [ -n "${COMMENT_ID}" ]; then
              python3 .github/scripts/trymerge.py --force --comment-id "${COMMENT_ID}" "${PR_NUM}"
            else
              python3 .github/scripts/trymerge.py --force "${PR_NUM}"
            fi
          elif [ -n "${ON_GREEN}" ]; then
            python3 .github/scripts/trymerge.py --on-green "${PR_NUM}"
          elif [ -n "${LAND_CHECKS}" ]; then
            python3 .github/scripts/trymerge.py --land-checks "${PR_NUM}"
          elif [ -n "${COMMENT_ID}" ]; then
            python3 .github/scripts/trymerge.py --comment-id "${COMMENT_ID}" "${PR_NUM}"
          else
            python3 .github/scripts/trymerge.py "${PR_NUM}"
          fi
      - name: Comment on Canceled
        if: ${{ cancelled() && steps.checkout.outcome == 'success' }}
        continue-on-error: true
        env:
          GITHUB_TOKEN: ${{ secrets.MERGEBOT_TOKEN }}
          PR_NUM: ${{ github.event.client_payload.pr_num }}
        run: |
          set -ex
          python3 .github/scripts/comment_on_pr.py "${PR_NUM}" "merge"

# We want newer merge commands to supercede old ones
concurrency:
  group: try-merge-${{ github.event.client_payload.pr_num }}
  cancel-in-progress: true