Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
A flexible logging library for use in Ruby programs based on the design of Java's log4j library.
Ruby Shell

Fetching latest commit…

Cannot retrieve the latest commit at this time

Failed to load latest commit information.
data
lib
tasks
test
History.txt
Manifest.txt
README.txt
Rakefile

README.txt

Logging
    by Tim Pease

* {Homepage}[http://logging.rubyforge.org/]
* {Rubyforge Project}[http://rubyforge.org/projects/logging]
* email tim dot pease at gmail dot com

== DESCRIPTION

Logging is a flexible logging library for use in Ruby programs based on the
design of Java's log4j library. It features a hierarchical logging system,
custom level names, multiple output destinations per log event, custom
formatting, and more.

== INSTALL

   sudo gem install logging

== EXAMPLE

This example configures a logger to output messages in a format similar to the
core ruby Logger class. Only log messages that are warnings or higher will be
logged.

   require 'logging'

   logger = Logging.logger(STDOUT)
   logger.level = :warn

   logger.debug "this debug message will not be output by the logger"
   logger.warn "this is your last warning"

In this example, a single logger is crated that will append to STDOUT and to a
file. Only log messages that are informational or higher will be logged.

   require 'logging'

   logger = Logging::Logger['example_logger']
   logger.add_appenders(
       Logging::Appender.stdout,
       Logging::Appenders::File.new('example.log')
   )
   logger.level = :info

   logger.debug "this debug message will not be output by the logger"
   logger.info "just some friendly advice"

The Logging library was created to allow each class in a program to have its
own configurable logger. The logging level for a particular class can be
changed independently of all other loggers in the system. This example shows
the recommended way of accomplishing this.

   require 'logging'

   Logging::Logger['FirstClass'].level = :warn
   Logging::Logger['SecondClass'].level = :debug

   class FirstClass
     def initialize
       @log = Logging::Logger[self]
     end

     def some_method
       @log.debug "some method was called on #{self.inspect}"
     end
   end

   class SecondClass
     def initialize
       @log = Logging::Logger[self]
     end

     def another_method
       @log.debug "another method was called on #{self.inspect}"
     end
   end

== NOTES

Although Logging is intended to supersede Log4r, it is not a one-to-one
replacement for the Log4r library. Most notably is the difference in namespaces
-- Logging vs. Log4r. Other differences include renaming Log4r::Outputter to
Logging::Appender and renaming Log4r::Formatter to Logging::Layout. These
changes were meant to bring the Logging class names more in line with the Log4j
class names.

== REQUIREMENTS

Logging requires the "lockfile" gem to run and the "flexmock" gem to run the
tests"

== LICENSE

Ruby
Something went wrong with that request. Please try again.