[FEATURE] Interactive Log Filtering with FZF

[Sho0pi]

🔍 Interactive Log Filtering with FZF

Objective

Add an interactive log filtering mode using fuzzy finder (fzf) to dynamically filter ongoing log streams.

Proposed Feature

gocat --fzf

Requirements

• Open regular gocat output with interactive filtering
• Real-time log stream filtering
• Preserve original log coloration and formatting
• Support multiple filter criteria
• Smooth, responsive interface

Filtering Capabilities

• Filter by:
  • Log levels
  • Tags
  • Process names
  • Custom search terms
• Live update of filtered results
• Ability to combine multiple filters

Implementation Approach

• Integrate with github.com/junegunn/fzf library
• Create a concurrent log processing pipeline
• Implement a terminal UI overlay
• Ensure minimal performance overhead

Example Interaction

[Live Log Stream]
> Filter: network    # Only show logs containing "network"
> Filter: !error     # Exclude error level logs
> Filter: MyApp      # Show only logs from MyApp

Stretch Goals

• Save and load filter presets
• Export filtered logs to file
• Highlight matched filter terms

Additional Considerations

• Ensure compatibility with different terminal emulators
• Provide fallback for systems without fzf