name: "CodeQL"

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

jobs:
  analyze:
    name: Analyze
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        language: ['go']

    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
      with:
        languages: ${{ matrix.language }}

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