[Rubygems-developers] Tracking RubyGems as a dependency

Jeremy Hinegardner jeremy at hinegardner.org
Wed Jul 7 12:17:23 EDT 2010


On Wed, Jul 07, 2010 at 04:36:43PM +0100, James Tucker wrote:
> Hi again,
> 
> One of the things that has come up along the lines of research for better
> integration with system package managers is the idea of tracking rubygems
> itself as a dependency for gem code. Some package managers simply strip out
> "require 'rubygems'" from 3rd party code, which in most cases is workable
> given their installation plan, however, some libraries may use the Gem API,
> for example Gem.gunzip or the like (for want of a better example). I recognise
> it's hard to get 3rd party users to fill in gemspecs fully, and I have other
> ideas for that, but in light of simply allowing dependency lists to be filled
> in correctly, should there be a method to do this in the gemspec?
> 
> At present specs contain a rubygems_version field that I'm not sure we even
> use. Can we add some kind of "uses_rubygems" boolean field for this purpose,
> as it seems depending on rubygems-update would be quite incorrect.
> 

I do believe this is the purpose of the :required_rubygems_version field
in the gemspec.

  ##
  # :attr_accessor: required_rubygems_version
  #
  # The RubyGems version required by this gem

  attribute :required_rubygems_version, Gem::Requirement.default

enjoy,

-jeremy

-- 
========================================================================
 Jeremy Hinegardner                              jeremy at hinegardner.org 



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