supertux/.github/workflows/lint.yml

#  SuperTux
#  Copyright (C) 2022 HybridDog
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <https://www.gnu.org/licenses/>.

name: Code Linting

on:
  push:
    branches:
      - master
    tags:
      - '*'
    paths:
      - 'src/**'
  pull_request:
    paths:
      - 'src/**'

jobs:
  lint_cppcheck:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      # The apt version of Cppcheck is outdated and apparently there are no
      # alternative up-to-date precompiled versions for Ubuntu,
      # so we compile it ourselves here.
      - name: Install Cppcheck
        run: |
          sudo apt-get update
          sudo apt-get install g++ make
          RELEASE_API_URL="https://api.github.com/repos/danmar/cppcheck/releases/latest"
          TARBALL_URL=$(curl --silent "$RELEASE_API_URL" | jq --raw-output '.tarball_url')
          curl --location --silent "$TARBALL_URL" | tar --extract --gzip --file=-
          cd danmar-cppcheck-*/
          make -j"$(nproc)" CXXFLAGS="-O1 -DNDEBUG"

      - name: Lint code with Cppcheck
        run: |
          ./danmar-cppcheck-*/cppcheck \
            --quiet --inline-suppr --language=c++ --error-exitcode=10 \
            -j"$(nproc)" --std=c++14 --enable=warning,style \
            --suppress=useStlAlgorithm  src/