check-dist.yml

# `dist/index.js` is a special file in Actions.
# When you reference an action with `uses:` in a workflow,
# `index.js` is the code that will run.
# For our project, we generate this file through a build process from other source files.
# We need to make sure the checked-in `index.js` actually matches what we expect it to be.
name: Check dist/

on:
  pull_request:
  workflow_dispatch:

jobs:
  check-dist:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4

      - name: Set Node.js 20.x
        uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
        with:
          node-version: 20.x

      - name: Install bun
        uses: oven-sh/setup-bun@8f24390df009a496891208e5e36b8a1de1f45135 # v1

      - uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4
        with:
          path: ~/.bun/install/cache
          key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lockb') }}
          restore-keys: |
            ${{ runner.os }}-bun-

      - name: Install dependencies
        run: bun install --frozen-lockfile

      - name: Rebuild the dist/ directory
        run: bun package

      - name: Compare the expected and actual dist/ directories
        run: |
          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
            echo "Detected uncommitted changes after build.  See status below:"
            git diff
            exit 1
          fi
        id: diff