cppcheck/.github/workflows/selfcheck.yml

# Syntax reference https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions
# Environment reference https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners
name: selfcheck

on: [push, pull_request]

permissions:
  contents: read

jobs:
  build:

    runs-on: ubuntu-22.04

    env:
      QT_VERSION: 5.15.2

    steps:
      - uses: actions/checkout@v3

      - name: Install missing software
        run: |
          sudo apt-get update
          sudo apt-get install libboost-container-dev          

      - name: ccache
        uses: hendrikmuhs/ccache-action@v1.2
        with:
          key: ${{ github.workflow }}-${{ runner.os }}

      - name: Install missing software
        run: |
          sudo apt-get update
          sudo apt-get install clang-14 valgrind          

      - name: Cache Qt ${{ env.QT_VERSION }}
        id: cache-qt
        uses: actions/cache@v1  # not v2!
        with:
          path: ../Qt
          key: Linux-QtCache-${{ env.QT_VERSION }}-qtcharts

      - name: Install Qt ${{ env.QT_VERSION }}
        uses: jurplel/install-qt-action@v2
        with:
          version: ${{ env.QT_VERSION }}
          modules: 'qtcharts'
          cached: ${{ steps.cache-qt.outputs.cache-hit }}

      # TODO: cache this - perform same build as for the other self check
      - name: Self check (build)
        run: |
          export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
          # valgrind cannot handle DWARF 5 yet so force version 4
          # work around performance regression with -inline-deferral
          make -j$(nproc) -s CXXFLAGS="-O2 -w -DHAVE_BOOST -gdwarf-4 -mllvm -inline-deferral" MATCHCOMPILER=yes          
        env:
          CC: clang-14
          CXX: clang++-14

      - name: CMake
        run: |
          cmake -S . -B cmake.output -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTS=On -DBUILD_GUI=ON -DWITH_QCHART=ON -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On          

      - name: Generate dependencies
        run: |
          # make sure the precompiled headers exist
          make -C cmake.output lib/CMakeFiles/lib_objs.dir/cmake_pch.hxx.cxx
          make -C cmake.output test/CMakeFiles/testrunner.dir/cmake_pch.hxx.cxx
          # make sure auto-generated GUI files exist
          make -C cmake.output autogen
          make -C cmake.output gui-build-deps          

      # TODO: find a way to report unmatched suppressions without need to add information checks
      - name: Self check (unusedFunction)
        if: false # TODO: fails with preprocessorErrorDirective - see #10667
        run: |
          ./cppcheck -q --template=selfcheck --error-exitcode=1 --library=cppcheck-lib --library=qt -D__CPPCHECK__ -D__GNUC__ -DQT_VERSION=0x050000 -DQ_MOC_OUTPUT_REVISION=67 --enable=unusedFunction --exception-handling -rp=. --project=cmake.output/compile_commands.json --suppressions-list=.selfcheck_unused_suppressions --inline-suppr          
        env:
          DISABLE_VALUEFLOW: 1
          UNUSEDFUNCTION_ONLY: 1

      # the following steps are duplicated from above since setting up the build node in a parallel step takes longer than the actual steps
      - name: CMake (no test)
        run: |
          cmake -S . -B cmake.output.notest -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTS=Off -DBUILD_GUI=ON -DWITH_QCHART=ON -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On          

      - name: Generate dependencies (no test)
        run: |
          # make sure the precompiled headers exist
          make -C cmake.output.notest lib/CMakeFiles/lib_objs.dir/cmake_pch.hxx.cxx
          # make sure auto-generated GUI files exist
          make -C cmake.output.notest autogen
          make -C cmake.output.notest gui-build-deps          

      # TODO: find a way to report unmatched suppressions without need to add information checks
      - name: Self check (unusedFunction / no test)
        run: |
          ./cppcheck -q --template=selfcheck --error-exitcode=1 --library=cppcheck-lib --library=qt -D__CPPCHECK__ -D__GNUC__ -DQT_VERSION=0x050000 -DQ_MOC_OUTPUT_REVISION=67 --enable=unusedFunction --exception-handling -rp=. --project=cmake.output.notest/compile_commands.json --suppressions-list=.selfcheck_unused_suppressions --inline-suppr          
        env:
          DISABLE_VALUEFLOW: 1
          UNUSEDFUNCTION_ONLY: 1

      - name: Fetch corpus
        run: |
          wget https://github.com/danmar/cppcheck/archive/refs/tags/2.8.tar.gz
          tar xvf 2.8.tar.gz          

      - name: CMake (corpus / no test)
        run: |
          cmake -S cppcheck-2.8 -B cmake.output.corpus -G "Unix Makefiles" -DHAVE_RULES=On -DBUILD_TESTS=Off -DBUILD_GUI=ON -DWITH_QCHART=ON -DENABLE_CHECK_INTERNAL=On -DCMAKE_GLOBAL_AUTOGEN_TARGET=On          

      - name: Generate dependencies (corpus)
        run: |
          # make sure the precompiled headers exist
          make -C cmake.output.notest lib/CMakeFiles/lib_objs.dir/cmake_pch.hxx.cxx
          # make sure auto-generated GUI files exist
          make -C cmake.output.corpus autogen
          make -C cmake.output.corpus gui-build-deps          

      # TODO: find a way to report unmatched suppressions without need to add information checks
      - name: Self check (unusedFunction / corpus / no test / callgrind)
        run: |
          # TODO: fix -rp so the suppressions actually work
          valgrind --tool=callgrind ./cppcheck --template=selfcheck --error-exitcode=0 --library=cppcheck-lib --library=qt -D__GNUC__ -DQT_VERSION=0x050000 -DQ_MOC_OUTPUT_REVISION=67  --enable=unusedFunction --exception-handling -rp=. --project=cmake.output.corpus/compile_commands.json --suppressions-list=.selfcheck_unused_suppressions --inline-suppr 2>callgrind.log || (cat callgrind.log && false)
          cat callgrind.log
          callgrind_annotate --auto=no > callgrind.annotated.log
          head -50 callgrind.annotated.log          
        env:
          DISABLE_VALUEFLOW: 1

      - uses: actions/upload-artifact@v3
        with:
          name: Callgrind Output
          path: ./callgrind.*