From: Dave Thomas <Dave@...>
Date: 2001-10-30T15:15:09+09:00
Subject: [ruby-talk:23809] Re: RubyGems Status (was: Re: Someinspirations from REBOL)

Robert Feldt <feldt@ce.chalmers.se> writes:

> I like this even though I think there are different
> types of "dependencies" so we might want to introduce classes for them,
> eg:
> 
> >  requires "RyansCoolGem, 0.0.2"
> >  requires "RobertsCoolGem, 2.0.0"
> 
> would become
> 
> dependency Depends.new("RyansCoolGem", "0.0.2")
> dependency Conflicts.new("RobertsCoolGem", "2.0.0", "Name clashes")

Agreed. In fact I'd probably want to go slightly further and make
versions a Class too: that way we'd have more consistent numbering
that simply relying on a String.

  dependsOn Gem("RyansCoolGem") >= V(0, 0, 2)

where V() generates a version number object and Gem returns an object
that overrides the relational operators and simply records the fact
they were called for later comparison with the Gem's real version
number.


Dave