LogMagnifier

A stream-based log analysis tool for Visual Studio Code, designed to handle large log files efficiently.

Features

• Large File Support: Efficiently stream-processes large log files (50MB+) without freezing the editor.
• Filter Groups: Organize your analysis with named groups of filters.
• Include/Exclude Logic:
  • Include: Keep lines containing specific keywords.
  • Exclude: Remove lines containing specific keywords (highest priority).
• Match Counts: Real-time count of keyword occurrences displayed in the sidebar.
• Search Navigation: Quickly navigate between matches using Previous/Next buttons in the sidebar.
• 3-Stage Highlighting: Toggle between Word, Line, and Whole Line highlight modes.
• Focus Mode: Generates a new editor tab with filtered results, enabling multi-stage filtering.
• Regex Support: Advanced filtering using regular expressions.
• Drag & Drop: Reorder filters intuitively.
• Highlighting: Automatically highlights "include" keywords in the filtered view.
• Robust Detection: Works with standard files and VS Code's optimized "Large File" read-only views.
• Expanded Colors: 16 distinct colors for highlighting.
• Context Lines: View matching lines with surrounding context (±3, ±5, ±9 lines).

Usage

1. Open "LogMagnifier" from the Activity Bar (List Icon).
2. Add Group: Click the + icon to create a new Filter Group (e.g., "AuthFlow").
3. Add Filters: Active the group, then add "Include" or "Exclude" keywords.
   • Tip: Hover over items to Toggle or Delete them.
   • Tip: Right-click items for options like Change Color, Toggle Case Sensitivity, Context Lines (±0/3/5/9), or Toggle Highlighting Mode (cycles: Word → Line → Whole Line).
   • Tip: Click the Arrow Up/Down icons on a filter item to navigate to the previous or next match in the editor.
4. Apply: Open your log file and click the Play icon in the view title.
5. Analyze: A new tab opens with the results.

Requirements

• VS Code 1.104.0 or higher.

Extension Settings

This extension contributes the following settings:

• logmagnifier.maxFileSizeMB: Maximum file size in MB for opening filtered logs as text documents. Larger files will open in safe mode. (Default: 50)
• logmagnifier.highlightColor: Background color for log highlights. (Default: rgba(255, 255, 0, 0.3))
• logmagnifier.tempFilePrefix: Prefix for the filtered temp files. (Default: filtered_)
• logmagnifier.statusBarTimeout: Duration for status bar messages in milliseconds. (Default: 5000)
• logmagnifier.enableRegexHighlight: Enable highlighting for Regex filters in the editor. (Default: false)

Credits

This project was built with Google Antigravity.