ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        # 18 is the floor declared in package.json `engines`; 22 is current LTS.
        node-version: ["18", "22"]

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      # No dependencies by design — the CLI is standard-library only, so there
      # is nothing to install and `npm ci` would fail on the absent lockfile.
      - name: Syntax-check every module
        run: node --check bin/styleref.mjs && for f in lib/*.mjs; do node --check "$f"; done

      - name: Test
        run: node --test

      - name: Smoke-test the entry point
        # Catches an import that resolves at parse time but explodes on run.
        run: node bin/styleref.mjs --help

  package:
    # The published tarball is what users actually get; `files` in package.json
    # is easy to get wrong and invisible until someone installs a broken build.
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: "22"
      - name: Verify the package contents
        run: |
          npm pack --dry-run
          npm pack --dry-run --json > pack.json
          # A file, not `node -`: stdin is parsed as CommonJS, so ESM here would
          # fail on the import rather than on a genuinely broken tarball.
          cat > check-pack.mjs <<'JS'
          import { readFileSync } from 'node:fs';
          const [pack] = JSON.parse(readFileSync('pack.json', 'utf8'));
          const files = pack.files.map((f) => f.path);
          const required = ['bin/styleref.mjs', 'lib/core.mjs', 'README.md', 'LICENSE'];
          const missing = required.filter((f) => !files.includes(f));
          if (missing.length) {
            console.error(`::error::missing from the tarball: ${missing.join(', ')}`);
            process.exit(1);
          }
          console.log(`ok: ${files.length} files`);
          JS
          node check-pack.mjs