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SDK gemsets

Last modified: 09 August 2022

RubyMine provides the capability to work with gemsets for the RVM and rbenv version managers. Note that this functionality is supported only for local interpreters.

To see gemsets available for the installed interpreters, open the Settings/Preferences dialog Ctrl+Alt+S and go to the Language & Frameworks | Ruby SDK and Gems page. On this page, the gemsets are shown as the interpreter children:

Ruby SDK and Gems page for RVM

For RVM, you can select a certain gemset and install project gems to this gemset. On the other hand, the rbenv version manager provides the ability to select several gemsets for a project:

Ruby SDK and Gems page for rbenv

In this case, gems will be installed to the first enabled gemset. See Install gems for instructions on how to install gems.

note

To avoid deleting any vital information from your machine, RubyMine doesn't allow you to remove gemsets from the UI. However, you can use the Terminal for this purpose.

Create RVM gemsets

Create a gemset for an existing project

To create an RVM gemset in the Settings/Preferences dialog Ctrl+Alt+S, go to the Language & Frameworks | Ruby SDK and Gems page and perform the following steps:

  1. Right-click the required interpreter and select New RVM gemset

    Ruby SDK and Gems page

  2. In the dialog that opens, select the Ruby SDK, for which the gemset will be created. Then, specify the gemset name and click OK:

    create new rvm gemset dialog

  3. The Ruby SDK and Gems page will show the gemset as a child of the selected SDK:

    Ruby SDK and Gems page

    Note that the asterisk is appended to the gemset name. This means that gemset is not created yet. To create it, click Apply or OK in the Settings/Preferences dialog.

Create Rbenv gemsets

RubyMine enables you to work with rbenv gemsets using the rbenv-gemsets plugin. In this case, the .rbenv-gemsets file manages project gemsets. RubyMine synchronizes the gemsets enabled in the Ruby SDK and Gems page with the ones specified in .rbenv-gemsets. For instance, if you uncheck the gemset in Ruby SDK and Gems, the corresponding record will be removed from the .rbenv-gemsets file.

Furthermore, you can create and disable gemsets right in the editor: