Module: Net::SSH::Loggable

Included in:
Authentication::Agent, Authentication::KeyManager, Authentication::Methods::Abstract, Authentication::Session, BufferedIo, Connection::Channel, Connection::EventLoop, Connection::Keepalive, Connection::Session, Service::Forward, Transport::Algorithms, Transport::Kex::Abstract, Transport::ServerVersion, Transport::Session
Defined in:
lib/net/ssh/loggable.rb

Overview

A simple module to make logging easier to deal with. It assumes that the logger instance (if not nil) quacks like a Logger object (in Ruby’s standard library). Although used primarily internally by Net::SSH, it can easily be used to add Net::SSH-like logging to your own programs.

class MyClass
  include Net::SSH::Loggable
end

Net::SSH.start(...) do |ssh|
  obj = MyClass.new
  obj.logger = ssh.logger
  ...
end

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#logger ⇒ Object

The logger instance that will be used to log messages. If nil, nothing will be logged.



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# File 'lib/net/ssh/loggable.rb', line 20

def logger
  @logger
end

Instance Method Details

#debug ⇒ Object

Displays the result of yielding if the log level is Logger::DEBUG or greater.



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# File 'lib/net/ssh/loggable.rb', line 24

def debug
  logger.add(Logger::DEBUG, nil, facility) { yield } if logger && logger.debug?
end

#error ⇒ Object

Displays the result of yielding if the log level is Logger:ERROR or greater.



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# File 'lib/net/ssh/loggable.rb', line 42

def error
  logger.add(Logger::ERROR, nil, facility) { yield } if logger && logger.error?
end

#fatal ⇒ Object

Displays the result of yielding if the log level is Logger::FATAL or greater.



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# File 'lib/net/ssh/loggable.rb', line 48

def fatal
  logger.add(Logger::FATAL, nil, facility) { yield } if logger && logger.fatal?
end

#info ⇒ Object

Displays the result of yielding if the log level is Logger::INFO or greater.



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# File 'lib/net/ssh/loggable.rb', line 30

def info
  logger.add(Logger::INFO, nil, facility) { yield } if logger && logger.info?
end

#lwarn ⇒ Object

Displays the result of yielding if the log level is Logger::WARN or greater. (Called lwarn to avoid shadowing with Kernel#warn.)



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# File 'lib/net/ssh/loggable.rb', line 36

def lwarn
  logger.add(Logger::WARN, nil, facility) { yield } if logger && logger.warn?
end