Add ability to include handler options and change console styling

lib/tty/logger.rb

@@ -53,10 +53,16 @@ def initialize(output: $stderr, level: nil, formatter: Formatters::Text,
 
     # Add handler for logging messages
     #
+    # @example
+    #   add_handler(:console)
+    #
     # @api public
     def add_handler(handler)
-      name = coerce_handler(handler)
-      ready_handler = name.new(output: output, formatter: formatter, config: @config)
+      h, options = *(handler.is_a?(Array) ? handler : [handler, {}])
+      name = coerce_handler(h)
+      global_opts = {output: output, formatter: formatter, config: @config}
+      opts = global_opts.merge(options)
+      ready_handler = name.new(opts)
       @ready_handlers << ready_handler
     end
 

lib/tty/logger/handlers/console.rb

@@ -57,10 +57,11 @@ class Console
 
         attr_reader :config
 
-        def initialize(output: $stderr, formatter: nil, config: nil)
+        def initialize(output: $stderr, formatter: nil, config: nil, styles: {})
           @output = output
           @formatter = formatter
           @config = config
+          @styles = styles
           @mutex = Mutex.new
           @pastel = Pastel.new
         end
@@ -74,7 +75,7 @@ def initialize(output: $stderr, formatter: nil, config: nil)
         def call(event)
           @mutex.lock
 
-          style = STYLES[event.metadata[:name].to_sym]
+          style = configure_styles(event)
           color = configure_color(style)
 
           fmt = []
@@ -98,6 +99,20 @@ def call(event)
           @mutex.unlock
         end
 
+        # Merge default styles with custom style overrides
+        #
+        # @return [Hash[String]]
+        #   the style matching log type
+        #
+        # @api private
+        def configure_styles(event)
+          style = STYLES[event.metadata[:name].to_sym].dup
+          (@styles[event.metadata[:name].to_sym] || {}).each do |k, v|
+            style[k] = v
+          end
+          style
+        end
+
         def configure_color(style)
           color = style.fetch(:color) { :cyan }
           @pastel.send(color).detach

spec/unit/handler_spec.rb

@@ -17,6 +17,21 @@
       "Logging                  \n"].join)
   end
 
+  it "coerces name into handler object" do
+    config = TTY::Logger::Config.new
+    config.handlers = [
+      [:console, {styles: {info: {symbol: "+", label: "INFO"}}}]
+    ]
+
+    logger = TTY::Logger.new(config: config, output: output)
+    logger.info("Logging")
+
+    expect(output.string).to eq([
+      "\e[32m+\e[0m ",
+      "\e[32mINFO\e[0m    ",
+      "Logging                  \n"].join)
+  end
+
   it "fails to coerce name into handler object" do
     config = TTY::Logger::Config.new
     config.handlers = [true]