Add public_folder macro

spec/config_spec.cr

@@ -28,4 +28,9 @@ describe "Config" do
     config.add_handler CustomTestHandler.new
     config.handlers.size.should eq(1)
   end
+
+  it "sets public folder" do
+    public_folder "/some/path/to/folder"
+    Kemal.config.public_folder.should eq("/some/path/to/folder")
+  end
 end

src/kemal/config.cr

@@ -10,7 +10,6 @@ module Kemal
       @port = 3000
       @env = "development" unless @env
       @public_folder = "./public"
-      read_file
     end
 
     def scheme
@@ -28,19 +27,6 @@ module Kemal
     def add_ws_handler(handler : HTTP::WebSocketHandler)
       HANDLERS << handler
     end
-
-    # Reads configuration from config.yml. Currently it only supports the public_folder
-    # option.
-    # config.yml
-    # public_folder = "root/to/folder"
-    def read_file
-      path = File.expand_path("config.yml", Dir.current)
-      if File.exists?(path)
-        data = YAML.load(File.read(path)) as Hash
-        public_folder = File.expand_path("./#{data["public_folder"]}", Dir.current)
-        @public_folder = public_folder
-      end
-    end
   end
 
   def self.config

src/kemal/macros.cr

@@ -26,3 +26,7 @@ macro basic_auth(username, password)
   auth_handler = Kemal::Middleware::HTTPBasicAuth.new("serdar", "123")
   Kemal.config.add_handler auth_handler
 end
+
+macro public_folder(path)
+  Kemal.config.public_folder = {{path}}
+end