configuration_file_finder.rb in reek-3.1

- old
+ new

@@ -1,9 +1,10 @@
 require 'pathname'
 
 module Reek
   module Configuration
+    class ConfigFileException < StandardError; end
     #
     # ConfigurationFileFinder is responsible for finding reek's configuration.
     #
     # There are 3 ways of passing `reek` a configuration file:
     # 1. Using the cli "-c" switch
@@ -15,10 +16,14 @@
     # configuration file is exactly like above.
     # @api private
     module ConfigurationFileFinder
       module_function
 
+      def find_and_load(params = {})
+        load_from_file(find(params))
+      end
+
       # FIXME: switch to kwargs on upgrade to Ruby 2 and drop `params.fetch` calls:
       # def find(options: nil, current: Pathname.pwd, home: Pathname.new(Dir.home))
       def find(params = {})
         options = params.fetch(:options) { nil                    }
         current = params.fetch(:current) { Pathname.pwd           }
@@ -34,9 +39,23 @@
         start.ascend do |dir|
           files = dir.children.select(&:file?).sort
           found = files.find { |file| file.to_s.end_with?('.reek') }
           return found if found
         end
+      end
+
+      def load_from_file(path)
+        return {} unless path
+        begin
+          configuration = YAML.load_file(path) || {}
+        rescue => error
+          raise ConfigFileException, "Invalid configuration file #{path}, error is #{error}"
+        end
+
+        unless configuration.is_a? Hash
+          raise ConfigFileException, "Invalid configuration file \"#{path}\" -- Not a hash"
+        end
+        configuration
       end
     end
   end
 end