adds colored output and fixes missing gemfile error

Gemfile.lock

@@ -1,13 +1,14 @@
 PATH
   remote: .
   specs:
-    rbtc_arbitrage (2.0.2)
+    rbtc_arbitrage (2.1.0)
       activemodel (>= 3.1)
       activesupport (>= 3.1)
       btce (= 0.2.4)
       coinbase (= 1.2.6)
       faraday (= 0.8.8)
       pony
+      tco (= 0.1.0)
       thor
 
 PATH
@@ -136,6 +137,7 @@ GEM
       rack-protection (~> 1.4)
       tilt (~> 1.3, >= 1.3.4)
     slop (3.4.7)
+    tco (0.1.0)
     term-ansicolor (1.2.2)
       tins (~> 0.8)
     thor (0.18.1)

lib/rbtc_arbitrage.rb

@@ -1,10 +1,14 @@
 require 'bundler'
-Bundler.require(:default)
+Dir.chdir("#{File.dirname(__FILE__)}/../") do
+  Bundler.require(:default)
+end
+require 'bitstamp'
 require 'thor'
 require_relative 'rbtc_arbitrage/campbx.rb'
 require 'btce'
 require 'coinbase'
 require 'pony'
+require 'tco'
 require_relative 'rbtc_arbitrage/client.rb'
 Dir["#{File.dirname(__FILE__)}/rbtc_arbitrage/trader/*.rb"].each { |f| require(f) }
 Dir["#{File.dirname(__FILE__)}/rbtc_arbitrage/**/*.rb"].each { |f| require(f) }

lib/rbtc_arbitrage/trader/logger.rb

@@ -8,21 +8,32 @@ def logger
       def log_info
         lower_ex = @buy_client.exchange.to_s.capitalize
         higher_ex = @sell_client.exchange.to_s.capitalize
-        logger.info "#{lower_ex}: $#{buyer[:price].round(2)}"
-        logger.info "#{higher_ex}: $#{seller[:price].round(2)}"
-        logger.info "buying #{@options[:volume]} btc from #{lower_ex} for $#{@paid.round(2)}"
-        logger.info "selling #{@options[:volume]} btc on #{higher_ex} for $#{@received.round(2)}"
+        logger.info "#{lower_ex}: $#{color(buyer[:price].round(2))}"
+        logger.info "#{higher_ex}: $#{color(seller[:price].round(2))}"
+        logger.info log_string("buying", lower_ex, @paid)
+        logger.info log_string("selling", lower_ex, @received)
 
         log_profit
       end
-      
+
       private
 
+      def log_string action, exchange, amount
+        message = "#{action} #{color @options[:volume]} "
+        message << "btc at #{exchange} for $"
+        message << color(amount.round(2))
+      end
+
+      def color message
+        message.to_s.fg("#D5EC28").bg("#000")
+      end
+
       def log_profit
-        profit_msg = "profit: $#{(@received - @paid).round(2)} (#{@percent.round(2)}%)"
+        profit_msg = "profit: $#{color (@received - @paid).round(2)}"
+        profit_msg << " (#{color(@percent.round(2))}%)"
         if cutoff = @options[:cutoff]
           profit_msg << " is #{@percent < cutoff ? 'below' : 'above'} cutoff"
-          profit_msg << " of #{cutoff}%."
+          profit_msg << " of #{color(cutoff)}%."
         end
         logger.info profit_msg
       end

lib/rbtc_arbitrage/version.rb

@@ -1,3 +1,3 @@
 module RbtcArbitrage
-  VERSION = "2.0.2"
+  VERSION = "2.1.0"
 end

rbtc_arbitrage.gemspec

@@ -49,4 +49,5 @@ Gem::Specification.new do |spec|
   spec.add_dependency "btce", '0.2.4'
   spec.add_dependency "coinbase", '1.2.6'
   spec.add_dependency "pony"
+  spec.add_dependency "tco", "0.1.0"
 end