name: Test changed content

# **What it does**: Runs the vitest tests for changed and deleted content files.
# **Why we have it**: Use GitHub Actions to run tests on changed content files.
# **Who does it impact**: Docs engineering, open-source engineering contributors.

on:
  pull_request:
    branches:
      # This is important! If you make a PR against a megabranch, you
      # might actually want to delete a file without setting up a
      # redirect in its place. But if it's going into `main` we'll
      # want to make sure that doesn't happen.
      - main
    paths:
      - 'content/**'

permissions:
  contents: read

jobs:
  test-changed-content:
    runs-on: ${{ fromJSON('["ubuntu-latest", "ubuntu-20.04-xl"]')[github.repository == 'github/docs-internal'] }}
    if: ${{ github.repository == 'github/docs-internal' || github.repository == 'github/docs' }}
    steps:
      # Each of these ifs needs to be repeated at each step to make sure the required check still runs
      # Even if if doesn't do anything
      - name: Check out repo
        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
        with:
          # See https://github.com/tj-actions/changed-files#on-pull_request-
          fetch-depth: 2

      - uses: ./.github/actions/node-npm-setup

      - uses: ./.github/actions/get-docs-early-access
        if: ${{ github.repository == 'github/docs-internal' }}
        with:
          token: ${{ secrets.DOCS_BOT_PAT_READPUBLICKEY }}

      - uses: ./.github/actions/cache-nextjs

      - name: Run build script
        run: npm run build

      - name: Get changed files
        id: changed-files
        uses: tj-actions/changed-files@1754cd4b9e661d1f0eced3b33545a8d8b3bc46d8 # v44.5.0
        with:
          # No need to escape the file names because we make the output of
          # tj-actions/changed-files be set as an environment variable. Not
          # as a direct input to the line of bash that uses it.
          # See https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
          safe_output: false
          files: 'content/**'
          # Necessary so we can know what the old name was when a
          # content file was renamed.
          output_renamed_files_as_deleted_and_added: true

      - name: Run tests
        env:
          CHANGED_FILES: ${{ steps.changed-files.outputs.modified_files }}
          DELETED_FILES: ${{ steps.changed-files.outputs.deleted_files }}
        run: npm test -- src/content-render/tests/render-changed-and-deleted-files.js