lib/doggy/shared_helpers.rb in doggy-0.2.0 vs lib/doggy/shared_helpers.rb in doggy-0.2.2

@@ -30,7 +30,34 @@
       puts prompt + " (Y/N)"
       line = $stdin.readline.chomp.upcase
       puts
       line == "Y"
     end
+
+    def self.error(msg)
+      puts "[ERROR] #{ msg }"
+    end
+
+    def self.find_root
+      File.dirname(find_file("Gemfile"))
+    end
+
+    def self.find_file(*names)
+      search_up(*names) do |filename|
+        return filename if File.file?(filename)
+      end
+    end
+
+    def self.search_up(*names)
+      previous = nil
+      current  = File.expand_path(Pathname.pwd)
+
+      until !File.directory?(current) || current == previous
+        names.each do |name|
+          filename = File.join(current, name)
+          yield filename
+        end
+        current, previous = File.expand_path("..", current), current
+      end
+    end
   end
 end