# Static analysis and code quality checks
name: Code Quality
on:
  push:
  pull_request:

permissions:
  contents: read

concurrency:
  cancel-in-progress: true
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}

jobs:
  cppcheck:
    name: Cppcheck Static Analysis
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

    - name: Install cppcheck
      run: |
        sudo apt-get update
        sudo apt-get install cppcheck

    - name: Display cppcheck version
      run: |
        type cppcheck && which cppcheck && cppcheck --version

    - name: Run cppcheck analysis
      # This test script ignores the exit code of cppcheck.
      # See known issues in README.md.
      run: make V=1 clean cppcheck || echo "There are some cppcheck reports but we ignore them for now."

  scan-build:
    name: Clang Static Analyzer
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

    - name: Install clang-tools
      run: |
        sudo apt-get update
        sudo apt-get install clang-tools

    - name: Display environment info
      run: |
        type gcc && which gcc && gcc --version
        type clang && which clang && clang --version
        type scan-build && which scan-build
        type make && which make && make -v
        cat /proc/cpuinfo || echo "/proc/cpuinfo is not present"

    - name: Run static analysis
      run: make V=1 clean staticAnalyze

  valgrind:
    name: Valgrind Memory Analysis
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

    - name: Install valgrind
      run: |
        sudo apt-get update
        sudo apt-get install valgrind

    - name: Display environment info
      run: |
        type cc && which cc && cc --version
        type valgrind && which valgrind && valgrind --version

    - name: Run memory analysis
      run: make V=1 -C tests test-mem

  unicode-lint:
    name: Unicode Linting
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

    - name: Check for unicode issues
      run: bash ./tests/unicode_lint.sh

  examples:
    name: Build Examples
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

    - name: Install dependencies
      run: sudo apt-get update

    - name: Display compiler info
      run: |
        type cc && which cc && cc --version
        type c++ && which c++ && c++ --version

    - name: Build examples
      run: make V=1 examples