name: LCTT Article Checker

on:
  pull_request:
    branches: [master]
jobs:
  build:
    runs-on: ubuntu-latest
    env:
      PULL_REQUEST_ID: ${{ github.event.number }}
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: ensure source branch is not "master"
        run: '[ "${{ github.head_ref }}" != master ]'
      - name: "checkout master branch & return to pull request branch"
        run: CURRENT=$(echo ${{github.ref}} |  sed "s|refs/|refs/remotes/|") && git checkout master && git checkout $CURRENT
      - name: run check
        run: sh ./scripts/check.sh;