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Size: 1.72 KB
Versions: 5
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Stored size: 1.72 KB
Contents
# encoding: ascii-8bit
require 'yaml'
module Bitcoin
# Load config files, merge options, etc.
#
# Multiple config files are loaded in order, and their settings merged into an
# existing +options+ hash.
#
# Each config file defines one or more +categories+ which hold the actual settings.
# Which categories are loaded, and in what order, is specified when you load
# the config (ie. the order in the file doesn't matter).
# The default category "all" is always used, and is always the first
# (gets overridden by all others)
module Config
CONFIG_PATHS = "./bitcoin-ruby.yml:~/.bitcoin-ruby.yml:/etc/bitcoin-ruby.yml"
# Load +categories+ from all files at +paths+ into given +options+ hash.
def self.load(options, categories = [], paths = CONFIG_PATHS)
paths.split(":").reverse.each do |path|
path.sub!("~", ENV["HOME"])
next unless File.exist?(path)
options = load_file(options, path, categories)
end
options
end
# Load categories +c+ of a single config +file+ into given +options+ hash.
def self.load_file(options, file, c = [])
categories = YAML::load_file(file)
[:all, *(c.is_a?(Array) ? c : [c])].each do |category|
options = merge(options, categories[category.to_s]) if categories[category.to_s]
end
options
end
# Deep-merge hash +b+ into +a+.
def self.merge(a, b)
return a unless b
symbolize(a).merge(symbolize(b)) do |k, o, n|
if o.is_a?(Hash) && n.is_a?(Hash)
merge(symbolize(o), symbolize(n))
else
n
end
end
end
# Turn all keys in +hash+ into symbols.
def self.symbolize(hash)
Hash[hash.map{|k,v|[k.to_sym,v]}]
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems