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opscode / mixlib-config

A simple class based Config mechanism, similar to the one found in Chef — Read more

https://www.opscode.com

This URL has Read+Write access

Adding the gemcutter task

adamhjk (author)

Sun Feb 28 12:11:27 -0800 2010

commit dfd39fb81a29a0e58785
tree f969a56eea52abc1f0b2
parent 01017031abfa8db1336f

mixlib-config /

name	age	history message
.gitignore	Thu Feb 18 14:03:40 -0800 2010	added gemspec to gitignore [Christopher Brown]
LICENSE	Wed Mar 11 18:11:34 -0700 2009	Initial commit [adamhjk]
NOTICE	Wed Mar 11 18:11:34 -0700 2009	Initial commit [adamhjk]
README.rdoc	Wed Mar 11 18:11:34 -0700 2009	Initial commit [adamhjk]
Rakefile	Sun Feb 28 12:11:27 -0800 2010	Adding the gemcutter task [adamhjk]
VERSION.yml	Sun Feb 28 11:41:47 -0800 2010	Updating the version to 1.1.0 [adamhjk]
features/	Thu Aug 20 10:57:36 -0700 2009	fixed the @@configuration class variable bug, u... [Nuo Yan]
lib/	Tue Jan 26 16:59:22 -0800 2010	Merge branch 'master' of github.com:opscode/mix... [adamhjk]
spec/	Mon Aug 24 15:14:13 -0700 2009	added config_attr_writer [Christopher Brown]

README.rdoc

Mixlib::Config

Mixlib::Config provides a class-based configuration object, like the one used in Chef. To use in your project:

  require 'rubygems'
  require 'mixlib/config'
  class MyConfig
    extend(Mixlib::Config)
    configure do |c|
      c[:first_value] = 'something'
      c[:other_value] = 'something_else'
    end
  end

Or…

  class MyConfig
    extend(Mixlib::Config)
    first_value 'something'
    other_value 'something_else'
  end

To check a configuration variable:

  MyConfig.first_value   # returns 'something'
  MyConfig[:first_value] # returns 'something'

To change a configuration variable at runtime:

  MyConfig.first_value('foobar')    # sets first_value to 'foobar'
  MyConfig[:first_value] = 'foobar' # sets first_value to 'foobar'

You should populate your class with the default values for every configuration variable that might be accessed. If you try and access a variable that does not exist, Mixlib::Config will throw an <ArgumentError>.

To load a ruby configuration file (which will evaluate in the context of your configuration class):

  MyConfig.from_file('your_config_file.rb')

Enjoy!

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