LogV Alpha

Developer tool for better real-time log visualization.

Note: currently only Rails logs are supported. But you're welcome to contribute a parser for your framework.

Installation

npm install -g logv

Usage

cat some.log | logv

or

rails s | logv

Press ESCape for command mode

Commands

Available commands are:

• show [list of constraints]
  • Example: show verb=GET path=~users
• hide [list of contraints]
  • Example: hide verb=GET path=~status
• reset
  • Resets the filters and shows last 1000 items
• clear
  • Clears the list

Features:

• Transforms all log records to Javascript objects, which allows you to
  • Include/exclude them based on attributes
  • query them
• Scopes
  • All logging for a single request can be rendered as 1 expandable line
• Custom highlighting of log records (like SQL, JSON, XML, stacktraces)
• Extendable - you can create a parser for your own log format
• Can run on your server/development machine
• Piping - just do

  rails s | logv

...and enjoy