Working prototype

lib/rake_control/version.rb

@@ -1,3 +1,3 @@
 module RakeControl
-  VERSION = "0.0.1"
+  VERSION = '0.1.0'
 end

lib/rake_control/wrapper.rb

@@ -0,0 +1,47 @@
+module RakeControl
+  class Wrapper
+    attr_reader :name, :description, :block, :success, :exception, :execution_time
+
+    def initialize(name, description, block)
+      @name = name
+      @description = description
+      @block = block
+      @success = true
+    end
+
+    def execute
+      result = measure_time do
+        intercept_exceptions do
+          block.call
+        end
+      end
+      save_statistics
+
+      success ? result : raise(exception)
+    end
+
+  private
+
+    def measure_time
+      t = Time.now
+      result = yield
+      @execution_time = Time.now.to_f - t.to_f
+      result
+    end
+
+    def intercept_exceptions
+      begin
+        yield
+      rescue => e
+        @success = false
+        @exception = e
+        nil
+      end
+    end
+
+    def save_statistics
+      puts "Task #{name} #{success ? 'finished successfully' : 'failed'}"
+      puts "Execution time: #{execution_time.round(4)}"
+    end
+  end
+end