From: Mauricio Fernandez <mfp@...>
Date: 2006-09-19T18:46:56+09:00
Subject: Re: What Version of rail/ruby?

On Tue, Sep 19, 2006 at 04:47:23AM +0900, Gregory Brown wrote:
> On 9/16/06, Victor Reyes <victor.reyes@gmail.com> wrote:
> >I will try 1.8.5. I wonder if I need to uninstall 1.8.4 first and start
> >from scratch.  I actually don't mind to start from scratch since I have not
> >done anything yet.
> >
> I think the problem with 1.8.5 is with breakpoint, which can be
> important for debugging Rails apps, but there is a patch available
> that fixes it (I think).

breakpoint (actually, Binding.of_caller, which it depended on) relies on a bug
in Ruby that was fixed in 1.8.5 [1]. If you want to keep debugging using
breakpoints under 1.8.5, there are two possibilities:
* use ruby-debug  [2] 
* use call_stack's alternative Binding.of_caller [3].

If you choose the latter, all you have to do is load breakpoint185.rb in your
server, e.g.
   ruby -rbreakpoint185 script/server
and proceed as usual (see [3] for information relevant to RubyGems users,
though).

1. http://eigenclass.org/hiki.rb?breakpoint+breaking+in+1.8.5
2. http://raa.ruby-lang.org/project/ruby-debug/
3. http://eigenclass.org/hiki.rb?call_stack+0.1.0

-- 
Mauricio Fernandez  -   http://eigenclass.org   -  singular Ruby