Lucy - Rails Log Viewer with Request ID Grouping

Lucy helps you visualize Rails logs by grouping related entries by their request ID.

Installation

# Install from local repository
cargo install --path .

# Install from GitHub repository
cargo install --git https://github.com/eudoxa/lucy

Setup

Enable request_id tagging in your Rails application:

# config/environments/development.rb (or other environment file)
Rails.application.configure do
  config.log_tags = [:request_id]
end

Usage

Monitor your logs with this command:

tail -f -n 1000 log/development.log | lucy

Development

To enable debug logs during development, set the LUCY_DEV environment variable:

LUCY_DEV=1 cargo run

Or when using the installed binary:

tail -f -n 1000 log/development.log | LUCY_DEV=1 lucy