Rakefile in imessage-0.1.1 vs Rakefile in imessage-0.2.0

@@ -1,7 +1,27 @@
-require "bundler/gem_tasks"
-require 'rspec/core/rake_task'
+desc "Build standalone version of imessage"
+task :standalone do
+  mkdir_p "build"
+  File.open("build/imessage", "w") do |f|
+    f.puts "#!/usr/bin/env ruby"
+    f.puts "# This file is generated from https://github.com/linjunpop/imessage using `rake standalone`"
+    f.puts "# any changes will be overwritten."
 
-RSpec::Core::RakeTask.new(:spec)
+    f.puts File.read("lib/imessage.rb").gsub(/^require_relative.*\n/, '')
+    f.puts File.read("lib/imessage/version.rb")
+    f.puts File.read("lib/imessage/parser.rb")
+    f.puts File.read("lib/imessage/sender.rb")
 
-task default: :spec
+    f.puts File.read("bin/imessage")
+      .gsub(/^require_relative.*\n/, '')
+      .gsub(%r{#!/usr/bin/env ruby}, '')
+  end
+  sh 'chmod +x build/imessage'
+end
 
+desc "Install standalone script"
+task :install => :standalone do
+  prefix = ENV['PREFIX'] || ENV['prefix'] || '/usr/local'
+
+  FileUtils.mkdir_p "#{prefix}/bin"
+  FileUtils.cp "build/imessage", "#{prefix}/bin"
+end
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