broken-links-check.yaml

name: check-links

on:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * 1'

permissions:
  issues: write

jobs:
  check-links:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Prepare Yarn
        uses: ./.github/actions/prepare/
      - name: Build CLI
        run: yarn build:cli
      - name: Check Links
        id: check-links
        # Run link checker and save outputs to files. https://stackoverflow.com/a/692407
        run: |
          yarn lint:links > >(tee -a stdout.txt) 2> >(tee -a stderr.txt >&2)
      - name: Create issue
        uses: actions/github-script@v6.4.0
        if: always() && steps.check-links.outcome == 'failure'
        with:
          script: |
            const title: 'Fix broken links';

            const previousIssues = await github.rest.issues.listForRepo({
              owner: context.repo.owner,
              repo: context.repo.repo,
              state: 'open',
              creator: context.actor,
            });

            const previousIssueExists = previousIssues.some((issue) => {
              issue.title === title;
            })

            if !previousIssueExists {
              const fs = require('fs');
              const input = fs.readFileSync('stderr.txt');
              const data = JSON.parse(input);
              const urls = data.map(item => item.url);
              const output = urls.map(url => `- [ ] ${url}`).join('\n');
              await github.rest.issues.create({
                owner: context.repo.owner,
                repo: context.repo.repo,
                title,
                body: `The following links are possibly broken:\n${output}`,
              });
            }