From: Tim Pease <tim.pease@...>
Date: 2007-01-16T05:52:47+09:00
Subject: [ANN] Logging 0.1.0

SYNOPSIS

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.

Logging is intended to supersede the orphaned Log4r project.

INSTALL

To install:

    $ gem install logging

A tarball is also available on the RubyForge project page:

    http://rubyforge.org/projects/logging/

EXAMPLE

    require 'rubygems'
    require 'logging'
    include Logging

    log = Logger.new 'test'
    log.appenders = Appender.stdout
    log.level = 'info'

    log.debug 'debug message'
    log.info 'informational message'
    log.warn 'Danger! Danger! Will Robinson'
    log.error {
       # ... some very time consuming code goes here
       'this log message took a long time to construct'
    }
    log.fatal 'Die Die Die'

The following lines are printed to STDOUT

     INFO  test : informational message
     WARN  test : Danger! Danger! Will Robinson
    ERROR  test : this log message took a long time to construct
    FATAL  test : Die Die Die

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 name spaces
-- 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.

This is an alpha release, and as such it is not yet feature complete. Neither
the YAML configuration nor the XML configuration have been incorporated into the
Logging library. Not all the logging appenders have been incorporated into the
Logging library either. If you would like to port any code from Log4r please
contact me (contact info can be found in the gem specification).