bundle-size.yml

name: Bundle size
on:
  push:
    branches:
      - main
  pull_request:

jobs:
  bundle-size:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Derive appropriate SHAs for base and head for `nx affected` commands
        uses: nrwl/nx-set-shas@v3

      - uses: actions/setup-node@v4
        with:
          cache: yarn
          node-version: '20'

      - run: yarn install --immutable

      #
      # Steps for PRs
      #

      - name: Measure affected packages
        if: ${{ github.event_name == 'pull_request' }}
        run: yarn nx affected --target=bundle-size --parallel --max-parallel=2

      - name: Compare results with "main" branch
        if: ${{ github.event_name == 'pull_request' }}
        run: |
          npx monosize compare-reports --branch main --output markdown --quiet > monosize.md

      - name: Save PR number
        run: echo ${{ github.event.number }} > pr.txt

      - uses: actions/upload-artifact@v3
        if: ${{ github.event_name == 'pull_request' }}
        with:
          name: monosize-report
          if-no-files-found: error
          path: |
            monosize.md
            pr.txt

      #
      # Steps for "main" branch
      #

      - name: Measure all packages
        if: ${{ github.event_name != 'pull_request' }}
        run: yarn nx run-many --all --target=bundle-size --parallel --max-parallel=2

      - name: Upload results
        if: ${{ github.event_name != 'pull_request' }}
        run: yarn monosize upload-report --branch main --commit-sha $GITHUB_SHA
        env:
          UPSTASH_WRITE_TOKEN: ${{ secrets.UPSTASH_WRITE_TOKEN }}