Tagit
Tagit exists because I tag my Rails releases in a human-readable way and I like to get my
application to tell me what version I'm currently running on. I tag using git and I use
the RubyGems rational versioning system. Yes, you
can tag with Capistrano, but I don't like the huge tags. I'm much happier discussing what we fixed
in v1.2 than I am discussing what we fixed in production_24012012989734.
If you tag your releases with human-readable numbers yourself, this gem gives you a so-stupid-it-might-be-clever engine that shows you what version you're currently on, based on the largest rational tag currently in git.
In your Gemfile, add
gem 'tagit'
You can then add a line to config/routes.rb like
mount Tagit::Engine => '/versions', :as => 'versions'
and visit:
/versions/currentfor the current version/versionsfor a list of versions