From: Luis Lavena <luislavena@...>
Date: 2011-01-01T12:20:17+09:00
Subject: Re: update_rubygems problem

On Dec 31 2010, 11:42 pm, Jörg W Mittag <JoergWMittag
+R...@GoogleMail.Com> wrote:
> Jakub Arnold wrote:
> > RubyGems 1.4.0 doesn't work on Ruby 1.9.x, yet.
>
> Shouldn't it have
>
>     required_ruby_version = '< 1.9'
>
> set in rubygems-update.gemspec, then?
>
> Or have I fundamentally misunderstood what that's for? (Quite likely.)
>

Something like that.

The problem is not RubyGems, but Ruby's own "gem-prelude"
functionality.

The version of RubyGems that is bundled with Ruby is not meant to be
updated by the normal mechanism. Until that is sorted *in Ruby*, we
can't do anything.

We could have limited the gem update version matching, but then it
will raise questions like "I'm using Ruby 1.9.x and I'm not getting
RubyGems 1.4.0 when doing gem update --system"

So, the issue will be similar: inability to update RubyGems, either by
the gem requirement or by Ruby's own issues.

--
Luis Lavena