Checking a single file with compile commands from --project

Static source code analysis tool for C and C++ code

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Checking a single file with compile commands from --project

Forum: General Discussion

Creator: Mathias Buhr

Created: 2017-05-17

Updated: 2020-09-13

Mathias Buhr - 2017-05-17

Hi,

I have a large cmake project and I'd like to integrate cppcheck into my IDE/editor. From cmake it's easy to generate all required compiler flags into compile_commands.json. This is then easliy loaded into cppcheck (on commandline) but this also automatically scans all files defined in the json file. Ideally, I'd like to run cppcheck on a single file but using the compiler flags from compile_commands.json on the command line. Is this somehow possible? I could find a way yet.

Additionally, is it possible to load the compile_commands.json in the cppcheck-gui?

I'm using the linux version.

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Daniel Marjamäki - 2017-05-17

I'd like to run cppcheck on a single file but using the compiler flags from compile_commands.json

yes that is a feature we should have. make it possible to scan specific files using settings from compile database.

Additionally, is it possible to load the compile_commands.json in the cppcheck-gui?

yes. in the project settings.

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Bryan Bennetts - 2019-04-17

I'd like to run cppcheck on a single file but using the compiler flags from compile_commands.json

yes that is a feature we should have. make it possible to scan specific files using settings from compile database.

Hi,

Was anything done for this? It is something I'd like too :)

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- alfred - 2020-09-12
  
  Hi,
  I would like this feature too !
  
  Last edit: alfred 2020-09-12
  
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  - Daniel Marjamäki - 2020-09-13
    
    On the command line you now have that feature. See --file-filter.
    
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Daniel Marjamäki - 2020-09-13

do you feel that this feature is needed in the GUI also? I envision that this is something you would only use for quick tests of some file. So configuration in a GUI project file would seem overkill. Or what do you say..

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- alfred - 2020-09-13
  
  Thanks Daniel,
  yeah i found the solution yesterday while I was reading the code to try to implement it myself.
  
  I actually use it with ALE(Asynchronus Linting Engine) https://github.com/dense-analysis/ale, a plugin for VIM, so I only need it a file at a time, and it would give me the results fairly quickly, instead of waiting for some time each time the command is ran, but I had to modify the plugin to incorporate the --file-filter into it.
  I am not familiar with gui tools in general, but if they do have something similar, --live cheching the code-- , instead of a report style, then it would be useful.
  
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