Rake can follow test-unit and minitest and can be gemified. I submitted PR  implementing this.
Patch  might be of special interest, since it fixes installation of RubyGem's binstub into /usr/bin.
- lib/rake/*: Gemify rake [fix GH-862][Feature #11025]
- test/rake/*: ditto.
- tool/rbinstall.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50163 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
- man/rake.1: rake has been gemified. [Feature #11025]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50611 b2dd03c8-39d4-4d8f-98ff-823fe69b080e