update rake tasks

Rakefile

@@ -1,8 +1,12 @@
+EMACS = "emacs"
+CASK = "cask"
+
+task default: %w[test]
+
 desc "Create a new release."
 task 'release' do
   current_version = run('git tag').split(/\n/).last.strip[1..-1]
-  print "What version do you want to release? (current: #{current_version}): "
-  version = STDIN.gets.strip
+  version = ask("What version do you want to release? (current: #{current_version}): ")
   version_tag = "v%s" % version
 
   if run('git tag').split(/\n/).include?(version_tag)
@@ -16,6 +20,30 @@ task 'release' do
   git_changes(version, version_tag)
 end
 
+desc "Installed Emacs information"
+task 'info' do
+  process_info "Install Emacs information"
+  say ""
+  say "PATH: ", :green, false
+  system "which #{EMACS}"
+  say "VERSION: ", :green, false
+  system "#{CASK} exec #{EMACS} --version | head -1"
+end
+
+desc "Run the test suite"
+task "test" do
+  process_info "Install package dependencies"
+  say ""
+  say "#{indent(3)}Command: ", :yellow, false
+  sh "cask install"
+  say ""
+
+  process_info "Run test suite"
+  say ""
+  system "#{CASK} exec ert-runner"
+  say ""
+end
+
 def git_changes(version, version_tag)
   run "git commit -a -m \"prepare #{version}\""
   run "git tag -a -m \"Version #{version}\" #{version_tag}"
@@ -27,6 +55,52 @@ def update_version(content, from, to)
   content = content.gsub("Version: #{from}", "Version: #{to}")
 end
 
+def ansi
+  {
+    green:     "\e[32m",
+    red:       "\e[31m",
+    white:     "\e[37m",
+    bold:      "\e[1m",
+    on_green:  "\e[42m",
+    ending:    "\e[0m"
+  }
+end
+
 def run(command)
   `#{command}`
 end
+
+def say(message, type=:white, newline=true)
+  message = "#{ansi[type]}#{message}#{ansi[:ending]}"
+  if newline
+    puts message
+  else
+    print message
+  end
+end
+
+def process_info(message)
+  puts "#{ansi[:on_green]}#{ansi[:red]}#{message}#{ansi[:ending]}#{ansi[:ending]}"
+end
+
+def info(message)
+  puts "#{ansi[:green]}#{ansi[:bold]}#{message}#{ansi[:ending]}#{ansi[:ending]}"
+end
+
+def ask(question, type=:white)
+  say(question, type, false)
+  answer = STDIN.gets.chomp
+  if answer == "" || answer.nil?
+    return nil
+  else
+    return answer
+  end
+end
+
+def indent(count)
+  " " * count
+end
+
+def colorize(string, color)
+  "#{ansi[color]}#{string}#{ansi[:ending]}"
+end