codeql.yml

# SPDX-License-Identifier: MIT
# Copyright (c) 2026 The Skigen Contributors

name: "CodeQL"

on:
  push:
    branches: [ "main", "staging" ]
  pull_request:
    branches: [ "main", "staging" ]
  schedule:
    - cron: '28 15 * * 1'

concurrency:
  group: codeql-${{ github.ref }}
  cancel-in-progress: true

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: 'true'

jobs:
  analyze:
    name: Analyze
    runs-on: ubuntu-24.04
    permissions:
      actions: read
      contents: read
      security-events: write

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@v5

      - name: Checkout Eigen
        uses: actions/checkout@v5
        with:
          repository: skigen-project/eigen
          ref: '3.4'
          path: eigen

      # Initialize CodeQL tools for scanning.
      - name: Initialize CodeQL
        uses: github/codeql-action/init@v4
        with:
          languages: ${{ matrix.language }}
          # Disable CodeQL TRAP caching: each cache entry is large and can
          # dominate the repository's Actions cache budget. The build is a
          # full from-scratch compile every run, so TRAP caching only speeds
          # extraction marginally and is not worth the footprint.
          trap-caching: false
          # If you wish to specify custom queries, you can do so here or in a config file.
          # By default, queries listed here will override any specified in a config file.
          # Prefix the list here with "+" to use these queries and those in the config file.

          # Details on CodeQL's query packs refer to:
          # https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
          # queries: security-extended,security-and-quality

      - name: Configure and compile Skigen
        run: |
          cmake -B build -S . \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_CXX_COMPILER=g++-13 \
            -DSKIGEN_BUILD_TESTS=ON \
            -DSKIGEN_BUILD_EXAMPLES=ON \
            -DSKIGEN_BUILD_BENCHMARKS=ON \
            -DSKIGEN_WITH_PLOT=OFF
          cmake --build build -j$(nproc)

      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@v4
        with:
          category: "/language:${{ matrix.language }}"