feat(file): add C++ file extensions support for comment stripping

[AdijeShen]

• Add support for .h, .hpp, .cpp, .cc, and .cxx file extensions
• Configure all C++ extensions to use the existing C comment stripper
• Add comprehensive test cases for each supported C++ extension
• Verify correct handling of various comment styles in each file type

This enhancement improves code processing capabilities for C++ projects.

Checklist

• Run npm run test
• Run npm run lint

[AdijeShen]

Hi @yamadashy, thanks for maintaining this awesome repomix tool!

While using repomix to pack my C++ repository (which primarily contains .h and .cc files), I noticed it wasn't correctly stripping comments from these file extensions. This PR adds support for common C++ file extensions (.h, .hpp, .cpp, .cc, and .cxx) by configuring them to use the existing C comment stripper.

I've also added comprehensive test cases for each supported extension to verify proper handling of various comment styles in each file type. All tests pass successfully.

This enhancement should significantly improve repomix's code processing capabilities for C++ projects. Let me know if you'd like any changes to this implementation!

[codecov]

Codecov Report

Attention: Patch coverage is 91.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 85.23%. Comparing base (fac2bff) to head (a0a7f54).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/core/file/fileManipulate.ts	91.66%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #435      +/-   ##
==========================================
+ Coverage   85.19%   85.23%   +0.03%     
==========================================
  Files          87       87              
  Lines        4242     4266      +24     
  Branches      837      840       +3     
==========================================
+ Hits         3614     3636      +22     
- Misses        628      630       +2     

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[Copilot]

Pull Request Overview

This PR adds support for C++ file extensions to the comment stripping functionality.

• New test cases for .h, .hpp, .cpp, .cc, and .cxx files covering various comment styles were added.
• The core file manipulator was updated to map these C++ extensions to the existing C comment stripper.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
tests/core/file/fileManipulate.test.ts	Added test cases for C++ file extensions and comment removal cases.
src/core/file/fileManipulate.ts	Configured C++ extensions to use the existing C comment stripper.

[yamadashy]

Hi, @AdijeShen!

Thank you for your PR!

I tested it with this repository and it works great, the code looks perfect!
https://github.com/nlohmann/json

I noticed that documentation comments were still remaining, so I tried to address that issue.
I don't have much experience with C++, so I'm wondering if documentation comments should be preserved instead?

[Copilot]

Pull Request Overview

This PR adds support for comment stripping in C++ files by configuring all C++ extensions (.h, .hpp, .cpp, .cc, .cxx) to use a dedicated manipulator and by adding comprehensive test cases to validate the behavior.

• Added a new CppManipulator class to handle C++ file types using the existing C comment stripper.
• Extended the test suite with multiple test cases covering various comment formats, including triple slash comments.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
tests/core/file/fileManipulate.test.ts	Added new test cases for header, source, and triple slash comment removal across multiple C++ file extensions.
src/core/file/fileManipulate.ts	Introduced the CppManipulator class and updated extension mappings for C++ files.

Comments suppressed due to low confidence (1)

src/core/file/fileManipulate.ts:55

• [nitpick] Consider handling multiple occurrences of '///' on a single line—for example, by using a regular expression—to ensure all triple slash comments are removed consistently.

const tripleSlashIndex = line.indexOf('///');

[AdijeShen]

Thanks for reviewing and testing the PR!

Regarding documentation comments - I believe they should not be preserved during the stripping process. The purpose of --remove-comments seems to be creating compact code archives, and documentation comments (even the triple-slash and /** */ varieties) would add unnecessary bulk to the packaged repository.

Your implementation to handle the triple-slash comments looks good to me - thanks for enhancing my initial contribution!

[yamadashy]

@AdijeShen
Thank you for confirming!

I'll merge this PR now. Thank you so much for your contribution!!

If you have any other ideas in the future, please feel free to contribute again!

[yamadashy]

@AdijeShen
This feature has been released in 0.3.1!
https://github.com/yamadashy/repomix/releases/tag/v0.3.1

Thank you for your contribution! Looking forward to your future contributions!