Refactor cacheFileName method

[NeoSelf1]

I've refactored the cacheFileName method with the following improvements.

• Extracted the file extension setting logic into a separate method.
• Restructured the nested conditionals to clearly indicate the priority order of file extensions.
• Removed redundant forcedExtension check in the second condition from setFileExtension method since it's already been checked in the first condition. If we reach the second condition, forcedExtension is guaranteed to be nil.

I have verified that all test cases in DiskStorageTests pass after the refactoring.
This is my first open source contribution, so please excuse any shortcomings. Thank you for your understanding.

[gemini-code-assist]

Hello @NeoSelf1, 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!

Summary of Changes

This pull request refactors the cacheFileName method in DiskStorage.swift to improve readability and maintainability. The changes involve extracting the file extension setting logic into a separate method called setFileExtension and restructuring the conditional logic to clarify the priority order of file extensions. A redundant check in the setFileExtension method has also been removed.

Highlights

• Refactoring: The cacheFileName method has been refactored to improve code clarity and organization.
• File Extension Handling: The logic for setting file extensions has been extracted into a separate setFileExtension method.
• Conditional Logic: The nested conditionals have been restructured to clearly indicate the priority order of file extensions.
• Redundancy Removal: A redundant forcedExtension check has been removed from the setFileExtension method.

Changelog

• Sources/Cache/DiskStorage.swift
  • Refactored the cacheFileName method to improve readability.
  • Extracted file extension setting logic into a new setFileExtension method (lines 385-395).
  • Restructured conditional logic for file extension priority (lines 374-383).
  • Removed redundant forcedExtension check in setFileExtension (lines 386, 390).
  • Modified cacheFileName to use the new setFileExtension method (lines 375-382).

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 in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.

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 issue 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 is currently in preview and 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 to provide feedback.

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.

---

A method refactored, a cleaner design,
Conditionals untangled, a clearer line.
File extensions managed with grace and with care,
A redundant check banished, the code now laid bare.

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

The refactoring improves the readability and maintainability of the cacheFileName method by extracting the file extension logic into a separate method and restructuring the conditional logic. The removal of the redundant forcedExtension check is also a good optimization. Overall, the changes are well-structured and enhance the code's clarity.

Merge Readiness

The refactoring has improved the code's readability and maintainability without introducing any new issues. The test cases pass, indicating that the functionality remains intact. I am unable to directly approve this pull request, and recommend that others review and approve this code before merging. Given the improvements and the passing tests, the pull request appears ready for merging.