Conditional dependency based on dependency resolution

[voxik]

Is there a way to have conditional dependencies? For example, I have this simple Gemfile:

source "https://www.rubygems.org"

group :development do
  gem 'minitest', '> 5.0'
  gem 'minitest-mock'
end

The problem here in fact is that the minitest-mock used to be part of minitest and it is needed just for minitest > 6.0. So is there a way to express that? I am not aware of any way to tap into the dependency resolution process.

[Edouard-chin]

👋 It is unfortunately not possible in Bundler to include dependencies conditionally based on the version of other dependencies. The closest we have to optional dependencies is install_if but this gets evaluated before the resolution process starts, so you won't be able to check what version of minitest is being installed.

Its a feature that has been talked about/requested for a while and it would be great to have. Other package managers implemented it and its really useful