MultiLogger

Makes it easier to create multiple log files in Rails.

Installation

Add this line to your Rails application's Gemfile:

gem 'multi_logger'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install multi_logger

Usage

To setup a logger, create an initializer script such as [Rails.root]/config/initializers/logger.rb with:

MultiLogger.add_logger('mail')

This will create a log file located at log/mail.log.

Then In Rails, you can log by calling the following:

Rails.logger.mail.debug('42')

The Rails. reference can be omitted at the usual places in Rails (e.g. controllers and views).

Note that log_name must not collide with existing method names in Rails logger, so names such as 'debug' or 'info' can not be used. You should try calling add_logger in Rails console to test if it is ok or raises an error.

Advanced

You can assign formatter to loggers directly, or pass the formatter during setup:

formatter = Proc.new{|severity, time, progname, msg|
  formatted_severity = sprintf("%-5s",severity.to_s)
  formatted_time = time.strftime("%Y-%m-%d %H:%M:%S")
  "[#{formatted_severity} #{formatted_time} #{$$}] #{msg.to_s.strip}\n"
}
MultiLogger.add_logger('mail', formatter:formatter)
MultiLogger.add_logger('user', formatter:formatter)

To set a different path to the log file, use :path option. For example, for setting a different file to each environment use:

MultiLogger.add_logger('mail', formatter:formatter, path:"mail_#{Rails.env}")

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

License

MIT License (See LICENSE.txt)