install gem from specific branch

Install Gem from Github Branch?

I have been following th开发者_JS百科e guide from that thread. When I get to step 4, rake gem , I get an error

rake aborted! Don't know how to build task 'gem'

Looks like they are using Jeweler which has a rake build task to build the gem.

You can check what rake tasks are available by doing rake -T or rake -vT (more verbose). If I do that in a gem's root directory that uses Jeweler I get:

rake build                    # Build gem

as an option.

I think you can also skip the manual install step by doing rake install too.

Don't forget to install jeweler:

sudo gem install technicalpickles-jeweler -s http://gems.github.com

Otherwise it won't build.