bundle install only specified groups

[Huiming Teo]

Hi, 

Is there a way to bundle install only specified groups? For example: bundle install --only deploy

Here's my use case: 

I'm setting up Jenkins CI server to build Rails app using Capistrano. Before Jenkins can run `cap deploy`, it needs the gems required by `config/deploy.rb` to be installed on CI server. For simple use case, it only needs `capistrano` gem. But normally, we will require a few recipes from other gems e.g. delayed_job/recipes etc.

This is my current workaround:

# Gemfile

...

group :development do

  ..

end

group : test do

  ..

end

group :deploy do

  gem 'capistrano'

  gem 'capistrano-helpers'

  gem 'capistrano-ssh-helpers'

  gem 'delayed_job'

end

# Command to install gems on CI server:

bundle install --deployment --without default development test  # this will install :deploy group only

The reason I don't want to run `bundle install` is because I don't want to install all default gems on CI server, especially those with native extensions. Any suggestion or better workaround? 

--

Huiming

[André Arko]

That is the currently supported way to install only a single group. Since the without groups are remembered, you should only have to type the command once.

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[Huiming Teo]

Ya, that's the workaround I'm using now. I'm a bit surprised this --only option is not supported at the first place. Do you think there will be any cons for adding this option?

[linyu den]

I got this problem, i just want to bundle the specified group, 

how to implement my purpose.

I don't want to always `bundle install --without development production` ,, and type more terms

i just want to this `bundle install --with test` simply

BTW, maybe i have more multiple groups, not just many.

在 2013年1月2日星期三UTC+8上午8时55分19秒，Huiming Teo写道：

[Ryan Mohr]

I'm finding a `bundle install --only` option would be nice too. Opened an issue for it at https://github.com/bundler/bundler-features/issues/59