verify-dist.yml

# Inspired by @action/checkout
#
# Compares the checked in `dist/index.js` with the PR's `dist/index.js`
# On mismatch this action fails
name: Verify dist

on:
  push:
    branches:
      - master
      - release/**
    paths-ignore:
      - "**.md"
  pull_request:
    paths-ignore:
      - "**.md"

jobs:
  check-dist:
    name: Verify dist/index.js file

    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Use volta
        uses: volta-cli/action@v4

      - name: Install dependencies
        run: yarn install

      - name: Rebuild dist
        run: yarn build

      - name: Compare expected and actual dist
        run: |
          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
            echo "Detected uncommitted changes after build. Did you forget to commit `dist/index.js`?"
            echo "Diff:"
            git diff
            exit 1
          fi