Live to Code

Creating a gem from scratch

1. Create a skeleton gem

    $ bundle gem my_awesome_gem
   

2. Write code and tests

3. Build and install gem locally

   $ rake build
   $ gem install pkg/my_awesome_gem-0.0.4.gem
   

   (or you can type $ rake install instead)

4. [optional] Push the gem to rubygems.org

    $ gem push pkg/my_awesome_gem-0.0.4.gem
   

Updating an existing gem

1. Make the code changes

2. Update the version number in version.rb

3. Build and install the gem locally

   $ rake install
   

4. [optional] Push the gem to rubygems.org

   $ gem push pkg/my_awesome_gem-0.0.4.gem
   

Unpacking a gem into a ruby application

$ gem unpack my_awesome_gem -v 0.0.4 --target vendor/gems

Pushing a new version to rubygems

$ gem push pkg/my_awesome_gem-0.0.4.gem

Multiple rubygems accounts

1. Install keycutter

2. View existing keys (default key is marked with a *)

   $ gem keys --list
   

3. Add a new key (you'll be prompted for your credentials)

   $ gem keys --add work
   

4. Change the key used to connect to rubygems

   $ gem keys --default work