Make logger configurable

spec/macros_spec.cr

@@ -21,4 +21,11 @@ describe "Macros" do
       Kemal.config.handlers.size.should eq 1
     end
   end
+
+  describe "#logging" do
+    it "sets logging status" do
+      logging false
+      Kemal.config.logging.should eq false
+    end
+  end
 end

src/kemal.cr

@@ -4,18 +4,22 @@ require "./kemal/middleware/*"
 at_exit do
   Kemal::CLI.new
   config = Kemal.config
-  logger = Kemal::Logger.new
-  config.add_handler logger
+  if config.logging
+    logger = Kemal::Logger.new
+    config.add_handler logger
+    logger.write "[#{config.env}] Kemal is ready to lead at #{config.scheme}://#{config.host_binding}:#{config.port}\n"
+    Signal::INT.trap {
+      logger.write "Kemal is going to take a rest!\n"
+      logger.handler.close
+    }
+  end
   config.add_handler Kemal::StaticFileHandler.new(config.public_folder)
   config.add_handler Kemal::Handler::INSTANCE
 
   server = HTTP::Server.new(config.host_binding.not_nil!.to_slice, config.port, config.handlers)
   server.ssl = config.ssl
-  logger.write "[#{config.env}] Kemal is ready to lead at #{config.scheme}://#{config.host_binding}:#{config.port}\n"
 
   Signal::INT.trap {
-    logger.write "Kemal is going to take a rest!\n"
-    logger.handler.close
     server.close
     exit
   }

src/kemal/config.cr

@@ -4,13 +4,14 @@ module Kemal
   class Config
     INSTANCE = Config.new
     HANDLERS = [] of HTTP::Handler
-    property host_binding, ssl, port, env, public_folder
+    property host_binding, ssl, port, env, public_folder, logging
 
     def initialize
       @host_binding = "0.0.0.0" unless @host_binding
       @port = 3000
       @env = "development" unless @env
       @public_folder = "./public"
+      @logging = true
     end
 
     def scheme

src/kemal/macros.cr

@@ -41,3 +41,8 @@ end
 macro log(message)
   Kemal::Logger::INSTANCE.write "#{{{message}}}\n"
 end
+
+# Enables / Disables logging
+macro logging(status)
+  Kemal.config.logging = {{status}}
+end