ci.yml

name: CI

# Only the checks that need no display, no serial port and no human: lint,
# typecheck and the unit tests. The Playwright suites drive a real Electron
# window, so they stay out.

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:

jobs:
  check:
    name: Lint, typecheck and unit tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v7

      # No `cache: yarn` here. setup-node resolves the cache folder by running
      # yarn, which corepack has not installed yet at this point in the job.
      - uses: actions/setup-node@v7
        with:
          node-version: 24

      - name: Enable corepack
        run: corepack enable

      # Retried once: reaching the registry can fail for reasons that have
      # nothing to do with the code. Lint, typecheck and the tests below are
      # deliberately not retried.
      - name: Install dependencies
        shell: bash
        run: |
          yarn install --immutable ||
            { sleep 15; yarn install --immutable; }

      # The lint script carries --fix, which would silently rewrite files here.
      # Same rules, without the rewriting.
      - name: Lint
        run: yarn eslint . --ext .js,.jsx,.cjs,.mjs,.ts,.tsx,.cts,.mts

      - name: Typecheck
        run: yarn typecheck

      - name: Unit tests
        run: yarn test