config.rb in yore-0.0.4

- old
+ new

@@ -1,5 +1,10 @@
+require 'rubygems'
+gem 'RequirePaths'; require 'require_paths'
+require_paths '..'
+require 'ihl_ruby/xml_utils'
+
 class ConfigClass < Hash
 
 	attr_reader :default_values
 
 	def initialize(aDefaultValues,aNewValues=nil,&aBlock)
@@ -101,7 +106,97 @@
 
 	def to_hash
 		{}.merge(self)
 	end
 
+end
+
+class ConfigXmlClass < ConfigClass
+	attr_accessor :xmlRoot
+	def initialize(aDefaultValues,aConfig)
+		return super(aDefaultValues,aConfig) unless aConfig.is_a?(REXML::Element)
+		@xmlRoot = aConfig.deep_clone
+		super(aDefaultValues,XmlUtils.read_simple_items(@xmlRoot,'/Yore/SimpleItems'))
+	end
+end
+
+# credentials files look like :
+#<?xml version="1.0" encoding="UTF-8"?>
+#<Credentials>
+#	<SimpleItems namespace="global">
+#		<Item name=""></Item>
+#		<Item name=""></Item>
+#		<Item name=""></Item>
+#	</SimpleItems>
+#	<SimpleItems namespace="yore_test">
+#		<Item name=""></Item>
+#		<Item name=""></Item>
+#		<Item name=""></Item>
+#	</SimpleItems>
+#</Credentials>
+#
+# global .credentials.xml file  
+# local .credentials.xml file
+# cred = Credentials.new()	# optionally specify filename or path or hash. if nil then use Dir.pwd
+#
+# def initialize(aSource)
+#		# load global namespace from ~/.credentials.xml
+#		# load global namespace from local .credentials.xml
+#		# load given namespace from ~/.credentials.xml
+#		# load given namespace from local .credentials.xml
+#		# merge all top to bottom
+class Credentials < Hash
+
+	CRED_FILENAME = ".credentials.xml"
+
+	def find_file_upwards(aFilename,aStartPath=nil)
+		aStartPath ||= Dir.pwd
+		return nil if aFilename.nil? || aFilename.empty?
+		arrPath = aStartPath.split(File::SEPARATOR)
+		while arrPath.length > 0
+			path = File.join(arrPath.join(File::SEPARATOR),aFilename)
+			return path if File.exists?(path)
+			arrPath.pop
+		end
+		return nil
+	end
+	
+	def get_all_credentials(aXmlRoot)
+		return nil unless aXmlRoot
+		result = {}
+		REXML::XPath.each(aXmlRoot, '/Credentials/SimpleItems') do |si|
+			ns = si.attributes['Namespace']
+			values = XmlUtils.read_simple_items(si)
+			result[ns.to_sym] = values.symbolize_keys if ns && values
+		end
+		return result
+	end
+
+	#XmlUtils.read_simple_items(@xmlRoot,'/Yore/SimpleItems')
+	def get_user_credentials
+		return get_all_credentials(XmlUtils.get_file_root(File.join(HOME_PATH,CRED_FILENAME)))
+	end
+
+	def get_local_credentials(aSource=nil)
+		aSource ||= Dir.pwd
+		# assume source is a directory path, but other types could be supported later
+		return nil unless file=find_file_upwards(CRED_FILENAME,aSource)
+		return get_all_credentials(XmlUtils.get_file_root(file))
+	end
+
+	def initialize(aNamespace=nil,aSource=nil)
+		#HOME_PATH can be preset by tests eg. ::Credentials.const_set('HOME_PATH',@user_dir)
+		Credentials.const_set("HOME_PATH", ENV['HOME']) unless Credentials.const_defined? "HOME_PATH"
+		arrCredentials = []
+		user_credentials = get_user_credentials()
+		local_credentials = get_local_credentials(aSource)
+		arrCredentials << user_credentials[:global] if user_credentials
+		arrCredentials << local_credentials[:global] if local_credentials
+		arrCredentials << user_credentials[aNamespace.to_sym] if aNamespace && user_credentials
+		arrCredentials << local_credentials[aNamespace.to_sym] if aNamespace && local_credentials
+		arrCredentials.compact!
+		arrCredentials.each do |c|
+			self.merge!(c)
+		end
+	end
 end
 