pullReqMerge.yml

name: Comment on PR Closure and Close Related Issue

on:
  pull_request_target:
    types:
      - closed

jobs:
  close_issue:
    runs-on: ubuntu-latest

    steps:
      - name: Check PR Merge Status
        id: pr_status
        run: echo "::set-output name=merged::${{ github.event.pull_request.merged }}"

      - name: Close related issue if PR is merged
        if: steps.pr_status.outputs.merged == 'true'
        uses: actions/github-script@v4
        with:
          github-token: ${{ secrets.MY_SEC }}
          script: |
            const { owner, repo, number } = context.issue;
            const linkedIssues = context.payload.pull_request.body.match(/#\d+/g); // Find issue numbers in the PR body (e.g. "closes #123")
            if (linkedIssues) {
              for (const issue of linkedIssues) {
                const issue_number = issue.replace('#', ''); // Extract issue number
                await github.issues.update({
                  owner,
                  repo,
                  issue_number,
                  state: 'closed'
                });
                console.log(`Closed issue: ${issue}`);
              }
            }
            console.log('No linked issues found in the PR body.');