merge-gate.yaml

name: Merge Gate
on:
  pull_request:
    types: [opened, edited, synchronize, reopened, ready_for_review, converted_to_draft, ready_for_review, labeled, unlabeled]

permissions:
  checks: read
  contents: read

jobs:
  merge-gate:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v4

      - name: Check
        shell: bash
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_NUMBER: ${{ github.event.number }}
        run: |
          sleep 30
          while :
          do
            # state: pass, fail, pending, skipping, cancel
            gh pr checks $PR_NUMBER --json name,bucket,completedAt,description,event,link,startedAt,state,workflow > all.json
            
            echo "Raw json for gh pr checks $PR_NUMBER:"
            cat all.json
            
            FAILED=`jq -r 'map(select(.bucket=="fail" and .name!="merge-gate").name) | .[]' all.json`
            CANCELED=`jq -r 'map(select(.bucket=="cancel" and .name!="merge-gate").name) | .[]' all.json`
            PENDING=`jq -r 'map(select(.bucket=="pending" and .name!="merge-gate").name) | .[]' all.json`

            FAILED_COUNT=`jq 'map(select(.bucket=="fail" and .name!="merge-gate")) | length' all.json`
            CANCELED_COUNT=`jq 'map(select(.bucket=="cancel" and .name!="merge-gate")) | length' all.json`
            PENDING_COUNT=`jq 'map(select(.bucket=="pending" and .name!="merge-gate")) | length' all.json`
            
            echo "Failed count: $FAILED_COUNT"
            echo "$FAILED" | awk '{ print "  * " $0 }'
            echo "Pending count: $CANCELED_COUNT"
            echo "$CANCELED" | awk '{ print "  * " $0 }'
            echo "Pending count: $PENDING_COUNT"
            echo "$PENDING" | awk '{ print "  * " $0 }'
          
            if [ "$FAILED_COUNT" != "0" ]; then
              echo "Error: There are failed jobs"
              echo "# Failed jobs" >> $GITHUB_STEP_SUMMARY
              echo "$FAILED" | awk '{ print "  * " $0 }' >> $GITHUB_STEP_SUMMARY
              exit 1
            fi
            if [ "$CANCELED_COUNT" != "0" ]; then
              echo "Error: There are canceled jobs"
              echo "# Canceled jobs" >> $GITHUB_STEP_SUMMARY
              echo "$CANCELED" | awk '{ print "  * " $0 }' >> $GITHUB_STEP_SUMMARY
              exit 1
            fi
            if [ "$PENDING_COUNT" == "0" ]; then
              echo "There are no pending jobs. All done!"
              echo "# All jobs done" >> $GITHUB_STEP_SUMMARY
              exit 0
            fi
          
            sleep 5
          done