module Datumfactory::Config::Yaml
Constants
- DISALLOWED_KEYS
Public Class Methods
dotify_keys(hash, key_prefix = nil)
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# File lib/datumfactory/config/yaml.rb, line 57 def self.dotify_keys(hash, key_prefix = nil) {}.tap do |new_hash| hash.each_pair do |k,v| k = [key_prefix, k].compact.join('.') if v.kind_of?(Hash) new_hash.update(dotify_keys(v, k)) else next if DISALLOWED_KEYS.include?(k.to_sym) new_hash[k.to_sym] = v end end end end
load_yaml(path)
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# File lib/datumfactory/config/yaml.rb, line 27 def self.load_yaml(path) begin yaml = YAML.load(ERB.new(path.read).result) rescue => e config_error = ConfigError.new(e.to_s) if e.backtrace backtrace = e.backtrace.map do |line| if line.start_with?('(erb)'.freeze) line.gsub('(erb)'.freeze, path.to_s) else line end end config_error.set_backtrace(backtrace) end raise config_error end case yaml when Hash yaml when NilClass, FalseClass {} else raise ConfigError, "The configuration file #{path} is invalid." end end
new(path, env = 'production')
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# File lib/datumfactory/config/yaml.rb, line 10 def self.new(path, env = 'production') path = path.kind_of?(Pathname) ? path : Pathname.new(path) if !path.exist? raise ConfigError, "The configuration file #{path} was not found." elsif !path.file? raise ConfigError, "The configuration file #{path} is not a file." elsif !path.readable? raise ConfigError, "The configuration file #{path} is not readable." end yaml = load_yaml(path) yaml.merge!(yaml[env]) if yaml[env].kind_of?(Hash) dotify_keys(yaml) end