Feat: DevTools Improvements

[M-DEV-1]

Summary

Changes have been made to enhance debugging productivity using the Gemini CLI DevTools.

Enhancements include:

• Network UI filters with RegEx, text highlighting, toggle-buttons for methods and status of requests
• Similar filter upgrades in Console for logs
• Users can now filter specific HTTP requests, error payloads, and Regex pattern strings simultaneously with matched strings visually highlighted.

Details

• UI filtering: added a FilterBar component. Search inputs will now dynamically drill down url logs (in console, and network tab). Users can also make use of RegEx for their searches. Network methods, and Status Codes are also filterable (only appear as required).
• server autostart: automatically detects when it acts as the primary runtime entry script and correctly hooks onto the 25417. Faced some issues when using npm run start and this seemed to be the fix.

Before

Console

Network Tab

After

Console

Network Tab

Related Issues

This PR addresses #21993

How to Validate

git fetch origin
git checkout devtools-improvements
npm install
npm run build
npm run bundle
npm run start

Pre-Merge Checklist

• Updated relevant documentation and README (if needed)
• Added/updated tests (if needed)
• Noted breaking changes (if any)
• Validated on required platforms/methods:
  • MacOS
    • npm run
    • npx
    • Docker
    • Podman
    • Seatbelt
  • Windows
    • npm run
    • npx
    • Docker
  • Linux
    • npm run
    • npx
    • Docker

[gemini-code-assist]

Summary of Changes

Hello, 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 significantly upgrades the Gemini CLI DevTools by integrating robust filtering and search functionalities across its console and network panels. Users can now efficiently narrow down logs and network requests using regular expressions, case-sensitive searches, and specific toggles for log levels, HTTP methods, and status codes. These enhancements, combined with visual highlighting of search results and an improved server auto-start mechanism, aim to provide a more intuitive and productive debugging experience.

Highlights

• Enhanced Filtering Capabilities: Introduced a new FilterBar component and useSearch hook, enabling advanced filtering for both console and network logs with support for RegEx, case sensitivity, and inversion.
• Console Log Filtering: Added the ability to filter console logs by type (error, warn, log, info, debug) with persistent state saved in local storage.
• Network Log Filtering: Implemented filtering for network requests based on HTTP methods and status code classes (e.g., 2xx, 4xx, 5xx).
• Visual Search Highlighting: Integrated text highlighting for matched search terms within both console and network log entries.
• Keyboard Shortcut for Filters: Added a keyboard shortcut (Ctrl+F / Cmd+F) to quickly focus the filter input field in the active DevTools tab.
• DevTools Server Auto-Start: Configured the DevTools server to automatically start when its module is run directly, improving the npm run start experience.

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[M-DEV-1]

@cocosheng-g @rnett

I've made the required changes, do take a look when time permits!

[gemini-code-assist]

Code Review

This pull request introduces a comprehensive search and filtering system for the DevTools client, featuring regex support, case sensitivity, and inverted filtering for both console and network logs. It adds persistent log level selection for the console and method/status class filtering for network requests, along with a keyboard shortcut for quick filter access. Review feedback highlights a critical concern regarding the auto-start logic in the DevTools entry point, which could lead to unintended server execution when the module is imported, and suggests performance optimizations for log rendering to prevent UI lag during filtering.

_{Note: Security Review is unavailable for this PR.}

[M-DEV-1]

@sehoon38 I used the /code-reviewer skill today for the first time, and it did flag some parts of the code which I corrected (refer last commit)

this is a v good skill!