# GitHub action to run static code analysis on C++ and Python code
name: "CodeQL Code Analysis"

on:
  push:
    branches: [master]

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

    strategy:
      fail-fast: false
      matrix:
        # Supported options are ['csharp', 'cpp', 'go', 'java', 'javascript', 'python']
        language: ['python']

    steps:
    - name: Checkout repository
      if: ${{ github.repository == 'lammps/lammps' }}
      uses: actions/checkout@v2
      with:
        # We must fetch at least the immediate parents so that if this is
        # a pull request then we can checkout the head.
        fetch-depth: 2

    # If this run was triggered by a pull request event, then checkout
    # the head of the pull request instead of the merge commit.
    - run: git checkout HEAD^2
      if: ${{ github.repository == 'lammps/lammps' && github.event_name == 'pull_request' }}

    # Initializes the CodeQL tools for scanning.
    - name: Initialize CodeQL
      if: ${{ github.repository == 'lammps/lammps' }}
      uses: github/codeql-action/init@v1
      with:
        languages: ${{ matrix.language }}

    - name: Perform CodeQL Analysis
      if: ${{ github.repository == 'lammps/lammps' }}
      uses: github/codeql-action/analyze@v1