From: Scott Barron <linguist@...>
Date: 2006-04-16T09:17:58+09:00
Subject: Re: Bug: Requiring "breakpoint" causes the entire Rails framework to load.

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On 4/15/06, Mauricio Fernandez <mfp@acm.org> wrote:
>
> On Sun, Apr 16, 2006 at 05:21:41AM +0900, Florian Gro=DF wrote:
> > >I'm no gems internals guru but it seems to me that when you require
> > >'rubygems' all of the gems/**/lib directories are added to the path,
> and
> > >the
> > >rails gem has a lib/breakpoint.rb.  When looking at the lib directorie=
s
> of
> > >most other gems, it looks like the rails gem has a fairly dirty lib/.
> >
> > Oh, it still bundles breakpoint? I guess that would be better solved by
> > adding a dependency on ruby-breakpoint now that it comes with a gem.
> >
> > IIRC they were using slightly different default options, but if that
> > really turns out to be a problem I can certainly try to address this in
> > a new version of ruby-breakpoint.
> >
> > It's also odd that RubyGems will load the Rails version instead of the
> > ruby-breakpoint one. Sounds odd.
>
> This is a simple conflict between the two RubyGems packages; such things
> are
> bound to happen with increasing frequency.
>
> When you do  require 'breakpoint', the new Kernel#require defined by
> RubyGems
> searches all package directories (more precisely, the require_paths, whic=
h
> doesn't however help that much given the overall slowness of this
> approach)
> for breakpoint{,.rb,.so,.bundle,.dll,.sl} and loads the first match it
> finds,
> "activating" the corresponding RubyGems package in the process.
>
> This search is performed in alphabetical order relative to package names,
> so
> rails' copy (under activesupport/) will be found before ruby-breakpoint.
>
> As for  require 'breakpoint'  loading all of Rails, that's quite
> surprising
> since there are no explicit #require calls there, and activesupport
> doesn't
> use auto_require. It'd be interesting to see the "require chain", if the
> OP can
> provide it.
>
> --
> Mauricio Fernandez  -   http://eigenclass.org   -  singular Ruby
>
>
Actually it's pulling in the one from the rails package.  Its
breakpoint.rblives right in lib, active support's lives in
lib/active_support.  Of
course, 'rails' is still alphabetically before 'ruby-breakpoint', but that'=
s
why the framework would be loaded.

-Scott

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