typecheck.yml

name: TypeScript Checks

on:
  workflow_call:
  pull_request:
    types: [opened, synchronize]
    branches-ignore: [staging, production]
    paths: ['**.js', '**.ts', '**.tsx', 'package.json', 'package-lock.json', 'tsconfig.json']

jobs:
  typecheck:
    if: ${{ github.actor != 'OSBotify' || github.event_name == 'workflow_call' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - uses: Expensify/App/.github/actions/composite/setupNode@main

      - name: Type check with TypeScript
        run: npm run typecheck
        env:
          CI: true

      - name: Check for new JavaScript files
        run: |
          git fetch origin main --no-tags --depth=1
          count_new_js=$(git diff --name-only --diff-filter=A origin/main HEAD -- 'src/libs/*.js' 'src/hooks/*.js' 'src/styles/*.js' 'src/languages/*.js' | wc -l)
          if [ "$count_new_js" -gt "0" ]; then
            echo "ERROR: Found new JavaScript files in the /src/libs, /src/hooks, /src/styles, or /src/languages directories; use TypeScript instead."
            exit 1
          fi