More Rubocop compliance

Gemfile

@@ -1,8 +1,8 @@
 source 'http://rubygems.org'
 
-raise "Ruby >=1.9.3 is required! Detected version: #{RUBY_VERSION}" unless RUBY_VERSION.to_s >= "1.9.3"
+fail "Ruby >=1.9.3 is required! Detected version: #{RUBY_VERSION}" unless RUBY_VERSION.to_s >= '1.9.3'
 
 # celluloid-io should automatically install celluloid and nio4r
-gem "rake", ">= 10.1.0"
-gem "celluloid-io", ">= 0.16.2"
-gem "eventmachine", ">= 1.0.3"
+gem 'rake', '>= 10.1.0'
+gem 'celluloid-io', '>= 0.16.2'
+gem 'eventmachine', '>= 1.0.3'

Rakefile

@@ -1,19 +1,19 @@
 require 'rdoc/task'
 
-rdoc_dir = "rdoc"
-version = "0.2a"
+rdoc_dir = 'rdoc'
+version = '0.2a'
 
 RDoc::Task.new do |rdoc|
   rdoc.rdoc_dir = rdoc_dir
   rdoc.title = "RubIRCd #{version}"
-  rdoc.main = "README.doc"
-  rdoc.rdoc_files.include("*.rb")
-  rdoc.rdoc_files.include("modules/*.rb")
-  rdoc.options << "--all"
+  rdoc.main = 'README.doc'
+  rdoc.rdoc_files.include('*.rb')
+  rdoc.rdoc_files.include('modules/*.rb')
+  rdoc.options << '--all'
 end
 
 task :install do
-  sh "bundle install"
+  sh 'bundle install'
 end
 
 task :default => [:install]

cell.rb

@@ -33,6 +33,11 @@
   exit!
 end
 
+# Handles event-driven I/O for network communication
+# using Celluloid
+# This class should offer better performance than
+# native select() since it provides access to libev
+# implementations of epoll and kqueue where available
 class Cell
   include Celluloid::IO
   finalizer :shutdown
@@ -42,14 +47,13 @@ def initialize(host, plain_port, ssl_port)
     # Since Celluloid::IO is included, this is a Celluloid::IO::TCPServer
     @plain_server = TCPServer.new(host, plain_port)
     async.plain_acceptor
-    unless Options.ssl_port.nil?
-      ssl_context = OpenSSL::SSL::SSLContext.new
-      ssl_context.cert = OpenSSL::X509::Certificate.new(File.read('cfg/cert.pem'))
-      ssl_context.key = OpenSSL::PKey::RSA.new(File.read('cfg/key.pem'))
-      @ssl_server = SSLServer.new(TCPServer.new(host, ssl_port), ssl_context)
-      async.ssl_acceptor
-      @connection_check_thread = Thread.new() { Network.connection_checker() }
-    end
+    return if Options.ssl_port.nil?
+    ssl_context = OpenSSL::SSL::SSLContext.new
+    ssl_context.cert = OpenSSL::X509::Certificate.new(File.read('cfg/cert.pem'))
+    ssl_context.key = OpenSSL::PKey::RSA.new(File.read('cfg/key.pem'))
+    @ssl_server = SSLServer.new(TCPServer.new(host, ssl_port), ssl_context)
+    async.ssl_acceptor
+    @connection_check_thread = Thread.new { Network.connection_checker }
   end
 
   def shutdown
@@ -66,21 +70,17 @@ def ssl_acceptor
   end
 
   def handle_plain_connections(plain_client)
-    Server.increment_clients()
+    Server.increment_clients
     user = Network.register_connection(plain_client, nil)
-    unless Server.kline_mod == nil
-      Network.check_for_kline(user)
-    end
+    Network.check_for_kline(user) unless Server.kline_mod.nil?
     Network.welcome(user)
     Network.main_loop(user)
   end
 
   def handle_ssl_connections(ssl_client)
-    Server.increment_clients()
+    Server.increment_clients
     user = Network.register_connection(ssl_client, nil)
-    unless Server.kline_mod == nil
-      Network.check_for_kline(user)
-    end
+    Network.check_for_kline(user) unless Server.kline_mod.nil?
     Network.welcome(user)
     Network.main_loop(user)
   end