LoggerDev

This supplies a formatting module for Logger.Backends.Console that makes the log a little more readable. It prints logs in different colors based on the logging module, and shows the time, level, and module in a left gutter.

Installation

The package can be installed by adding logger_dev to your list of dependencies in mix.exs:

def deps do
  [
    {:logger_dev, "~> 0.1.1"}
  ]
end

Config

For module-based color support (and to display module names), :module needs to be added to the logger's metadata:

config :logger, metadata: [:module]

The width of the gutter can be controlled with the :padding config key. The default is 20.

config :logger_dev, padding: 25

Modules can be silenced from the log with the :disable config key.

config :logger_dev, disable: [Phoenix.Logger, Ecto.Adapters.SQL]

Dark colors are automatically avoided. If your terminal has a light background, you can instead have light colors avoided.

config :logger_dev, background: :light

Or, you can specify the colors to choose from. Colors are based on the 8-bit ANSI terminal colors.

config :logger_dev, colors: [62, 63, 64, 65, 66, 67, 68, 69]

Red colors (9, 124, 160, 161, 196, 197, 198) are always avoided unless included in the :colors config.