Make version output colorful

lib/up2date.rb

@@ -7,8 +7,11 @@
 require 'net/http'
 require 'json'
 require_relative '../config/config'
+require 'term/ansicolor'
 
 module SlackBuilder
+  extend Term::ANSIColor
+
   # Remote repository for a single package.
   class Repository
     # Request the latest tag in the given repository.
@@ -72,16 +75,26 @@ module SlackBuilder
     end
   end
 
-  def self.check_for_latest(package_name, repository)
-    package_path = Pathname.new Dir.glob("#{CONFIG[:repository]}/*/#{package_name}").first
-    package_category = package_path.dirname.basename.to_s
-    package = Package.parse("#{package_category}/#{package_name}", File.read("#{package_path}/#{package_name}.info"))
+  module_function
+
+  # Checks if there is a new version for the package and returns the latest
+  # version if an update is available, otherwise returns nil.
+  def check_for_latest(package_name, repository)
+    package = find_package_info package_name
     latest_version = repository.latest
 
     if package.version == latest_version
-      puts "#{package_name} is up to date."
+      puts green "#{package_name} is up to date (Version #{package.version})."
+      nil
     else
-      puts "#{package_name}: Current version is #{package.version}, #{latest_version} is available."
+      puts red "#{package_name}: Current version is #{package.version}, #{latest_version} is available."
+      latest_version
     end
   end
+
+  private_class_method def find_package_info(package_name)
+    package_path = Pathname.new Dir.glob("#{CONFIG[:repository]}/*/#{package_name}").first
+    package_category = package_path.dirname.basename.to_s
+    Package.parse("#{package_category}/#{package_name}", File.read("#{package_path}/#{package_name}.info"))
+  end
 end