update_pr_with_comment.yml

name: Comment on Pull Request

on:
  workflow_run:
    types: [completed]
    workflows: [CI – Pull Requests]

jobs:
  comment:
    if: ${{ github.event.workflow_run.conclusion == 'success' }} && ${{github.event_name == 'pull_request' }}
    runs-on: ubuntu-latest
    steps:
      - name: Get Artifact and Pull request info
        env:
          GITHUB_TOKEN: ${{ github.token }}
          WORKFLOW_RUN_EVENT_OBJ: ${{ toJSON(github.event.workflow_run) }}
          OWNER: ${{ github.repository_owner }}
          REPO: ${{ github.event.repository.name }}
        run: |
          PREVIOUS_JOB_ID=$(jq -r '.id' <<< "$WORKFLOW_RUN_EVENT_OBJ")
          echo "Previous Job ID: $PREVIOUS_JOB_ID"
          echo "PREVIOUS_JOB_ID=$PREVIOUS_JOB_ID" >> "$GITHUB_ENV"
          
          SUITE_ID=$(jq -r '.check_suite_id' <<< "$WORKFLOW_RUN_EVENT_OBJ")
          echo "Previous Suite ID: $SUITE_ID"
          echo "SUITE_ID=$SUITE_ID" >> "$GITHUB_ENV"
          
          ARTIFACT_ID=$(gh api "/repos/$OWNER/$REPO/actions/artifacts" \
            --jq ".artifacts.[] |
            select(.workflow_run.id==${PREVIOUS_JOB_ID}) |
            select(.expired==false) |
            .id")
          
          echo "Artifact ID: $ARTIFACT_ID"
          echo "ARTIFACT_ID=$ARTIFACT_ID" >> "$GITHUB_ENV"
          
          PR_NUMBER=$(jq -r '.pull_requests[0].number' \
            <<< "$WORKFLOW_RUN_EVENT_OBJ")
          
          echo "Pull request Number: $PR_NUMBER"
          echo "PR_NUMBER=$PR_NUMBER" >> "$GITHUB_ENV"
          
          HEAD_SHA=$(jq -r '.pull_requests[0].head.sha' \
            <<< "$WORKFLOW_RUN_EVENT_OBJ")
          
          echo "Head SHA: $HEAD_SHA"
          echo "HEAD_SHA=$HEAD_SHA" >> "$GITHUB_ENV"
      - name: Find Comment
        uses: peter-evans/find-comment@v2
        id: find-comment
        with:
          issue-number: ${{ env.PR_NUMBER }}
          comment-author: 'github-actions[bot]'
      - name: Update Comment
        env:
          JOB_PATH: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ env.PREVIOUS_JOB_ID }}"
          ARTIFACT_URL: "${{ github.server_url }}/${{ github.repository }}/suites/${{ env.SUITE_ID }}/artifacts/${{ env.ARTIFACT_ID }}"
          HEAD_SHA: "${{ env.HEAD_SHA }}"
        uses: peter-evans/create-or-update-comment@v3
        with:
          issue-number: ${{ env.PR_NUMBER }}
          comment-id: ${{ steps.find-comment.outputs.comment-id }}
          edit-mode: replace
          body: |-            
            Build Successful! You can find a link to the downloadable artifacts below.
            
            | Name     | Link                    |
            | -------- | ----------------------- |
            | Commit   | ${{ env.HEAD_SHA }}     |
            | Logs     | ${{ env.JOB_PATH }}     |
            | Download | ${{ env.ARTIFACT_URL }} |