ci.yml

name: Continuous Integration

on:
  push:
    branches:
      - '*'
  pull_request:
    branches:
      - master

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        # Run the full suite behind UTC, at UTC and ahead of UTC so that
        # timezone-dependent date handling bugs can't slip through
        timezone: [ 'America/Toronto', 'UTC', 'Asia/Kolkata' ]
    name: "CI job (timezone: ${{ matrix.timezone }})"
    steps:
      - uses: actions/checkout@v7

      - uses: actions/setup-node@v7
        with:
          node-version: 24
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      # Note: must come *after* npm ci, as that step removes node_modules entirely
      - name: Cache Vite dependency optimizer output
        uses: actions/cache@v6
        with:
          path: node_modules/.vite
          key: vite-deps-${{ runner.os }}-${{ hashFiles('package-lock.json', 'vite.config.ts') }}
          restore-keys: |
            vite-deps-${{ runner.os }}-

      - name: Run tests with coverage
        run: npm run test:coverage
        env:
          TZ: ${{ matrix.timezone }}

      - name: Coveralls
        # coverage is identical in all timezones, upload it only once
        if: matrix.timezone == 'UTC'
        uses: coverallsapp/github-action@master
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}