How can I set up advanced logging in Ruby?

How can I set up advanced logging in Ruby?

To set up advanced logging in Ruby, you can use the Logger class from the standard library. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

require 'logger'

logger = Logger.new('application.log')
logger.level = Logger::DEBUG
logger.debug('This is a debug message')
logger.info('This is an info message')
logger.warn('This is a warning message')
logger.error('This is an error message')
logger.fatal('This is a fatal message')

This will log messages to 'application.log' with different severity levels.

How can I customize the log format?

You can customize the log format by using the formatter method. For example:

logger.formatter = proc do |severity, datetime, progname, msg|
  "#{datetime}: [#{severity}] #{msg}
"
end

This will change the log output format.