ci.yml

name: CI

on:
  # Type-check pushes to main, but only when relevant files change.
  push:
    branches: [main]
    paths:
      - "**/*.ts" # Source
      - "**/*.tsx"
      - ".github/workflows/**" # Workflow changes
      - "package.json" # Dependency/script changes
      - "package-lock.json"
  # Same checks for pull requests targeting main.
  pull_request:
    branches: [main]
    paths:
      - "**/*.ts"
      - "**/*.tsx"
      - ".github/workflows/**"
      - "package.json"
      - "package-lock.json"

jobs:
  typecheck:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v7.0.1
      - uses: actions/setup-node@v7.0.0
        with:
          node-version: 24
          cache: npm # Reuse the npm download cache across runs
      - run: npm ci # Reproducible install from the lockfile
      - run: npm run typecheck
      - run: npm run build # Ensure the published bundle compiles