name: "CodeQL scan"

on:
  push:
  pull_request:
  schedule:
    - cron: '0 14 * * 6'

jobs:
  CodeQL-Build:

    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2
      with:      
        fetch-depth: 2

    - run: git checkout HEAD^2
      if: ${{ github.event_name == 'pull_request' }}
      
    - name: Initialize CodeQL
      uses: github/codeql-action/init@v1

    - name: Autobuild
      uses: github/codeql-action/autobuild@v1

    - name: Perform CodeQL Analysis
      uses: github/codeql-action/analyze@v1