size.yml

name: Size

# Tracks tree-shaken scenario costs per PR (#2883). scripts/size/ is a
# standalone npm package OUTSIDE the pnpm workspace on purpose: adding its
# tooling to the workspace graph re-keys pnpm peer instances (vitest,
# @codspeed/vitest-plugin), which relocates the benchmark harness and shows
# up as phantom CodSpeed regressions. The limits in size/.size-limit.js are
# the strict tree-shaking gate; the retained-module-graph assertions in
# packages/solid-signals/tests/treeshake.test.ts stay the which-module
# diagnostic underneath.
on:
  pull_request:
    branches: [main, next]

permissions:
  contents: read
  pull-requests: write

jobs:
  # The hard gate: self-contained on the PR head, fails when any scenario
  # exceeds its limit. Never depends on the base branch.
  check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
      - uses: actions/setup-node@v4
        with:
          node-version-file: ".nvmrc"
          cache: pnpm
      - run: pnpm install --frozen-lockfile
      - run: pnpm build
      - run: npm ci --no-audit --no-fund
        working-directory: scripts/size
      - run: npm run size
        working-directory: scripts/size

  # Best-effort base-vs-head delta comment. Requires the base branch to also
  # carry scripts/size/, so it is informational and never blocks: continue-on-error
  # keeps bootstrap PRs (and any action hiccup) green.
  compare:
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
      - uses: actions/setup-node@v4
        with:
          node-version-file: ".nvmrc"
          cache: pnpm
      - uses: andresz1/size-limit-action@v1
        continue-on-error: true
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          package_manager: npm
          directory: scripts/size
          build_script: build