bzip2: apply patches from msys2/MINGW-packages.

[Redbeanw44602]

#8179

[gemini-code-assist]

Summary of Changes

Hello @Redbeanw44602, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request incorporates two essential patches from the msys2/MINGW-packages project into the bzip2 package. The first patch addresses several platform-specific issues, enhancing the utility's stability and security on Windows and Cygwin. The second patch introduces a user-friendly progress indicator, improving the overall user experience by providing visual feedback during lengthy operations. These modifications are strategically applied only to the relevant target platforms through updates in the xmake.lua configuration.

Highlights

• Platform Compatibility: Improved bzip2's compatibility and robustness on Windows and Cygwin environments by initializing file pointers, enhancing secure file output, and refining preprocessor directives.
• Progress Display Feature: Introduced a new command-line option (-p or --show-progress) to bzip2, allowing users to view real-time progress updates during compression and decompression operations.
• Conditional Patch Application: Integrated these new patches into the xmake.lua build system, ensuring they are applied specifically when building for MSYS, MinGW, or Cygwin platforms.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This pull request applies two patches from msys2/MINGW-packages to the bzip2 package. The cygming.patch enhances compatibility with Cygwin and MinGW environments through several fixes, including proper pointer initialization, secure file creation, and platform-specific macro adjustments. The show-progress.patch introduces a new feature to display compression/decompression progress. The changes are well-implemented, but I have a minor suggestion to improve the robustness of the progress display in one of the patches.