javascript.yml

name: JavaScript Checks

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  changes:
    name: Detect JavaScript Changes
    runs-on: ubuntu-latest
    outputs:
      js_changed: ${{ steps.changed-files.outputs.js }}
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v6
      - name: Get changed files
        id: changed-files
        uses: dorny/paths-filter@v4
        with:
          filters: |
            js:
              - '**/*.js'
              - '.github/workflows/javascript.yml'

  lint:
    name: Lint JavaScript
    needs: changes
    if: ${{ needs.changes.outputs.js_changed == 'true' }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v6

      # Deno has a relatively straightforward linter that we can use. If we had
      # more Javascript ESLint could've been necessary, but it's overkill for now.
      - name: Setup Deno
        uses: denoland/setup-deno@v2
        with:
          deno-version: v2.1.x

      # For now we use Javascript in NDG templates, and the simple solution
      # would be to lint ndg/templates/*.js but we *could* place Javascript
      # in other locations, perhaps for a NDG website made with NDG so let's
      # just lint all Javascript files no matter the path.
      - name: Lint JavaScript files
        run: |
          deno lint **/*.js