cppcheck.yml

# This workflow is to check C/C++ source with cppcheck.
name: cppcheck

on: [ push, pull_request ]

jobs:
  check:
    name: ${{ matrix.name }}
    runs-on: ubuntu-22.04

    strategy:
      # Deliver the feedback for all matrix combinations.
      fail-fast: false

      matrix:
        include:
        - name: Check unused (basic)
          args: --enable=unusedFunction --max-configs=200 --suppress=unusedFunction:libatomic_ops --suppress=unusedFunction:tests/gctest.c -D TEST_COVERAGE extra/gc.c tests/*.c
        - name: Check unused (cord and tests)
          args: --enable=unusedFunction --force --suppress=unusedFunction:cord/tests/de_win.c --suppress=unusedFunction:tests/gctest.c --suppress=unusedFunction:tests/cpp.cc -D GC_BUILTIN_ATOMIC -D TEST_COVERAGE *.cc cord/*.c cord/tests/*.c tests/*.c tests/*.cc
        - name: All checks (A-M)
          args: -j4 --enable=all --disable=missingInclude,unusedFunction --force -U GC_PRIVATE_H a*.c b*.c c*.c d*.c f*.c g*.c h*.c m*.c
        - name: All checks (N-W and cord)
          args: -j4 --enable=all --disable=missingInclude,unusedFunction --force -U GC_PRIVATE_H n*.c o*.c p*.c r*.c s*.c t*.c w*.c cord/*.c
        - name: All checks (other)
          args: -j4 --enable=all --disable=missingInclude,unusedFunction --force --suppress=functionStatic:include/gc/gc_allocator.h *.cc cord/tests/*.c extra/m*.c extra/*.cpp tests/*.c tests/*.cc tools/*.c

    steps:
    - uses: actions/checkout@v6

    - name: Set cppcheck version
      id: version
      run: |
        CPPCHECK_VER=2.20.0
        echo "version=$CPPCHECK_VER" >> $GITHUB_OUTPUT
        echo "cache_key=cppcheck-$CPPCHECK_VER" >> $GITHUB_OUTPUT

    - name: Cache cppcheck
      id: cache-cppcheck
      uses: actions/cache@v5
      with:
        path: ~/cppcheck-install
        key: ${{ steps.version.outputs.cache_key }}-${{ runner.os }}-${{ runner.arch }}

    - name: Download and make cppcheck
      if: steps.cache-cppcheck.outputs.cache-hit != 'true'
      run: |
        git clone --depth=1 https://github.com/cppcheck-opensource/cppcheck.git ~/cppcheck -b ${{ steps.version.outputs.version }}
        make --directory ~/cppcheck -j8 CXXFLAGS="-O3 -march=native -D NDEBUG" FILESDIR=~/cppcheck-install PREFIX=~/cppcheck-install install

    - name: Checkout libatomic_ops repository
      uses: actions/checkout@v6
      with:
        repository: bdwgc/libatomic_ops
        path: libatomic_ops

    - name: Run cppcheck analysis
      run: |
        ~/cppcheck-install/bin/cppcheck --error-exitcode=2 --quiet -D CPPCHECK -I include -I libatomic_ops/src --check-level=exhaustive --safety ${{ matrix.args }}