close-prs.yml

name: Close Open Pull Requests

# This workflow can be triggered manually to close all open PRs
# in the repository with a standard message.

on:
  workflow_dispatch:
    inputs:
      dry_run:
        description: 'Dry run (only list PRs, do not close them)'
        required: false
        default: 'true'
        type: choice
        options:
          - 'true'
          - 'false'

jobs:
  close-prs:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
      issues: write
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      
      - name: Close all open PRs
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const dryRun = '${{ inputs.dry_run }}' === 'true';
            const commentMessage = 'This is a template repo, with changes owned by the Codespaces team.';
            
            console.log(`Dry run mode: ${dryRun}`);
            console.log('Fetching open pull requests...');
            
            // Get all open PRs (handle pagination)
            const allPullRequests = [];
            let page = 1;
            let hasMore = true;
            
            while (hasMore) {
              const { data: pullRequests } = await github.rest.pulls.list({
                owner: context.repo.owner,
                repo: context.repo.repo,
                state: 'open',
                per_page: 100,
                page: page
              });
              
              allPullRequests.push(...pullRequests);
              
              // If we got less than 100 PRs, we've reached the end
              if (pullRequests.length < 100) {
                hasMore = false;
              } else {
                page++;
              }
            }
            
            if (allPullRequests.length === 0) {
              console.log('No open pull requests found.');
              return;
            }
            
            console.log(`Found ${allPullRequests.length} open pull request(s):`);
            
            for (const pr of allPullRequests) {
              console.log(`\nPR #${pr.number}: ${pr.title}`);
              console.log(`  Author: ${pr.user.login}`);
              console.log(`  Created: ${pr.created_at}`);
              
              if (!dryRun) {
                try {
                  // Add comment to the PR
                  console.log(`  Adding comment...`);
                  await github.rest.issues.createComment({
                    owner: context.repo.owner,
                    repo: context.repo.repo,
                    issue_number: pr.number,
                    body: commentMessage
                  });
                  
                  // Close the PR
                  console.log(`  Closing PR...`);
                  await github.rest.pulls.update({
                    owner: context.repo.owner,
                    repo: context.repo.repo,
                    pull_number: pr.number,
                    state: 'closed'
                  });
                  
                  console.log(`  ✓ Successfully closed PR #${pr.number}`);
                } catch (error) {
                  console.error(`  ✗ Failed to close PR #${pr.number}:`, error.message);
                }
              } else {
                console.log(`  (Dry run - would close this PR)`);
              }
            }
            
            if (dryRun) {
              console.log('\n⚠️  This was a dry run. No PRs were actually closed.');
              console.log('To close PRs, run this workflow again with dry_run=false');
            } else {
              console.log('\n✅ All open PRs have been processed.');
            }