Configuration library for ruby with YAML/JSON/TOML backends with unified object access

 % gem install asetus

require 'asetus'
cfg  = Asetus.cfg
port = cfg.server.port
user = cfg.auth.user
pw   = cfg.auth.password

It tried to detect your software name via caller_locations if no ':name' argument was given. It automatically loads /etc/name/config and ~/.config/name/config and merges them together.

require 'asetus'
asetus = Asetus.new name:    'mykewlapp',
                    default: {'poop'=>'xyzzy'},
                    adapter: 'yaml',
                    usrdir:  '/home/app/config/',
                    sysdir:  '/System/config/',
                    load:    false
asetus.default.poop2 = [1, 2, 3, 4]
asetus.default.starship.poopers = 42
asetus.load :user
if asetus.user.empty?
  asetus.user = asetus.default
  asetus.save :user
end
asetus.load    # load merges cfg, takes argument :default, :system, :user
asetus.cfg     # merged default   system   user  (merged on load)
asetus.default # default only
asetus.system  # system only
asetus.user    # user only

• each - iterate all config keys in current level
• has_key?(arg) - check if current level has key arg
• [arg] - fetch arg (useful for non-literal retrieval, instead of using #send)
• key? - all keys have question mark version reserved, checks if key exists true (true), exists false (false), not-exists (nil)

• all object class methods

• should I add feature to raise on unconfigured/unset?
• should I always merge to 'cfg' when default/system/config is set?

Copyright 2014-2016 Saku Ytti [email protected]

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.