Sha256: 1037ffaa5752958ed5aa791adcc0fc7713a168bace586b54b6ce847c8ac0591f
Contents?: true
Size: 1.61 KB
Versions: 12
Compression:
Stored size: 1.61 KB
Contents
module Olelo
class Config
include Enumerable
attr_reader :base, :hash
def initialize(base = nil)
@hash = {}
@base = base.freeze
end
def [](key)
key = key.to_s
if i = key.index('.')
not_found(key) unless Config === hash[key[0...i]]
hash[key[0...i]][key[i+1..-1]]
else
not_found(key) if !hash.include?(key)
hash[key]
end
end
def []=(key, value)
key = key.to_s
if i = key.index('.')
child(key[0...i])[key[i+1..-1]] = value
elsif Hash === value
child(key).update(value)
else
hash[key] = value.freeze
end
end
def update(hash)
hash.each_pair do |key, value|
self[key] = value
end
end
def load(file)
load!(file) if File.file?(file)
end
def load!(file)
update(YAML.load_file(file))
end
def each(&block)
hash.each(&block)
end
def self.instance
@instance ||= Config.new
end
def self.[](key)
instance[key]
end
def to_hash
h = Hash.with_indifferent_access
hash.each_pair do |k, v|
h[k] = Config === v ? v.to_hash : v
end
h
end
def freeze
hash.freeze
super
end
private
def not_found(key)
raise(NameError, "Configuration key #{base ? "#{base}.#{key}" : key} not found")
end
def child(key)
if child = hash[key]
raise "Configuration key #{key} is already used" unless Config === child
child
else
hash[key] = Config.new(base ? "#{base}.#{key}" : key)
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems