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What is cppcheck?

cppcheck is a static analysis tool for C/C++ code. It provides unique code analysis to detect bugs and focuses on detecting undefined behavior and dangerous coding constructs. The goal is to have very few false positives. Cppcheck is designed to be able to analyze your C/C++ code even if it has non-standard syntax (common in embedded projects).

How to use?

Create cppcheck.yml under .github/workflows With the following contents

Default configuration

name: cppcheck-action-test
on: [push]

jobs:
  build:
    name: cppcheck-test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
          
      - name: cppcheck
        uses: deep5050/cppcheck-action@main
        with:
          github_token: ${{ secrets.GITHUB_TOKEN}}
          
        
      - name: publish report    
        uses: mikeal/publish-to-github-action@master
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          BRANCH_NAME: 'main' # your branch name goes here

Advanced configuration

name: cppcheck-action
on: [push]

jobs:
  build:
    name: cppcheck
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: cppcheck
        uses: deep5050/cppcheck-action@main
        with:
          github_token: ${{ secrets.GITHUB_TOKEN}}
          check_library:
          skip_preprocessor:
          enable:
          exclude_check:
          inconclusive:
          inline_suppression:
          force_language:
          max_ctu_depth:
          platform:
          output_file:

      - name: publish report    
        uses: mikeal/publish-to-github-action@master
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          BRANCH_NAME: 'main' # your branch name goes here

Input options

check_library : enable Show information messages when library files have incomplete info.

skip_preprocessor : enable Print preprocessor output on stdout and don't do any further processing.

enable : Enable additional checks. The available ids are: all, warning ,style , performance , portability ,information , unusedFunction ,missingInclude . Default value is all if you want to enable multiple checking at once, separate them using , without any blank space. example: style,warning,performance.

exclude_check : Give a file or directory path to exclude from checking. example: ./no_check.cpp

inconclusive : disable, default value is enable . Allow that Cppcheck reports even though the analysis is inconclusive.

inline_suppression: enable , default is disable . Enable inline suppressions. Use them by placing one or more comments, like: '// cppcheck-suppress warningId'.

force_language : Forces cppcheck to check all files as the given language. Valid values are: c, c++ .

max_ctu_depth : Max depth in whole program analysis. The default value is 2. A larger value will mean more errors can be found but also means the analysis will be slower. Example : 4.

platform : Specifies platform specific types and sizes. The available builtin platforms are: unix32 ,unix64 , win32A , win32W ,win64 ,avr8 , native.

output_file : Give a filename for the output report. Default is ./cppcheck_report.txt

For further details check cppcheck documentations

License

MIT License

Copyright (c) 2020 Dipankar Pal

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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