Rakefile in parallel-0.5.15 vs Rakefile in parallel-0.5.16

@@ -1,21 +1,23 @@
-task :default => :spec
-require "rspec/core/rake_task"
-RSpec::Core::RakeTask.new(:spec) do |t|
-  t.rspec_opts = '--backtrace --color'
+require 'bundler/gem_tasks'
+
+task :default do
+  sh "rspec spec/"
 end
 
-begin
-  require 'jeweler'
-  Jeweler::Tasks.new do |gem|
-    gem.name = 'parallel'
-    gem.summary = "Run any kind of code in parallel processes"
-    gem.email = "[e-mail]"
-    gem.homepage = "http://github.com/grosser/#{gem.name}"
-    gem.authors = ["Michael Grosser"]
-    gem.license = "MIT"
-  end
+# extracted from https://github.com/grosser/project_template
+rule /^version:bump:.*/ do |t|
+  sh "git status | grep 'nothing to commit'" # ensure we are not dirty
+  index = ['major', 'minor','patch'].index(t.name.split(':').last)
+  file = 'lib/parallel/version.rb'
 
-  Jeweler::GemcutterTasks.new
-rescue LoadError
-  puts "Jeweler, or one of its dependencies, is not available. Install it with: gem install jeweler"
+  version_file = File.read(file)
+  old_version, *version_parts = version_file.match(/(\d+)\.(\d+)\.(\d+)/).to_a
+  version_parts[index] = version_parts[index].to_i + 1
+  version_parts[2] = 0 if index < 2 # remove patch for minor
+  version_parts[1] = 0 if index < 1 # remove minor for major
+  new_version = version_parts * '.'
+  File.open(file,'w'){|f| f.write(version_file.sub(old_version, new_version)) }
+
+  sh "bundle && git add #{file} Gemfile.lock && git commit -m 'bump version to #{new_version}'"
 end
+