name: TypeScript Check

on:
  pull_request:
    paths:
      - 'types/index.d.ts'

jobs:
  tsc:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v1
        with:
          fetch-depth: 1

      - uses: actions/setup-node@v1
        with:
          node-version: 12

      - name: Install TypeScript
        run: npm install -g typescript

      - name: Install required dependencies
        run: npm i --only=production --no-optional --no-audit --ignore-scripts

      - name: Check typings file
        run: tsc types/index.d.ts