ruby version

[Mohammed Morsi]

On 05/16/2010 12:07 PM, Jeroen van Meeuwen wrote:
> Frédéric Logier wrote:
>    
>> I need mongoid pre and devise pre which depends of rails3. Anyway now
>> I'm using rvm http://rvm.beginrescueend.com
>>
>>      
> I was looking at RVM once or twice, but I haven't really sunk my teeth into it
> yet.
>
> Since you obviously have some more experience, could you tell me how you would
> think this could be enabled/packaged/available on a system-wide and per-
> application basis?
>
> -- Jeroen
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>    

While a rubygem-rvm package for Fedora would be appropriate, I don't 
think rvm by itself is an acceptable solution for our problem w/ 
multiple incompatible ruby versions.

This is because (if I'm understanding it correctly) rvm is sort of a 
package management system in itself, built ontop of gem, which 
downloads, compiles, and installs ruby related packages depending on the 
ruby interpreter and version specified by the user.

We may be able to leverage it in ruby related specfiles, eg instead of 
using gem install, we use rvm install, provided it has a --no-deps 
option. At the very least it may assist us in designing some guidelines 
as well as establishing the framework for supporting multiple ruby 
versions in Fedora (eg we can derive the neccessary files / directories 
to get each ruby interpreter/version working separately). This is all 
conditional on the rvm specifics though, something I am not familiar with.

As far as the original problem, I've been wondering what were the exact 
incompatibilities between 1.8.6 and 1.8.7. Is there a definitive list 
somewhere about the core changes that will cause breakage? I'm still 
working on polisher so as to address this and be able to see any 
problems at hand, but haven't had any cycles to be able to devote to it 
recently. The 1.8.7 changelog can be found here, but it isn't the 
easiest document to sort through and it isn't immediately apparent which 
changes cause breakage

http://svn.ruby-lang.org/repos/ruby/tags/v1_8_7/ChangeLog

   -Mo