From: Jim Weirich <jim@...>
Date: 2008-09-10T20:59:46+09:00
Subject: Re: Drake: Distributed Rake

James M. Lawrence wrote:
> In a given Rakefile, it is possible (even likely) that the dependency
> tree has not been properly defined.  Consider
> 
>    task :a => [:x, :y, :z]
> 
> With single-threaded Rake, _x_,_y_,_z_ will be invoked *in that order*
> before _a_ is invoked.  

Just to clarify:  In standard rake x, y and z will be invoked by task a 
in that order.  However, that doesn't provide any guarantees that they 
will be executed in that order.

For example, consider the following additional dependencies:

task :x => :z

Then the code for z will be executed before task x.

The moral of the story is that depending upon ordering of dependencies 
to determine the ordering of execution is a bug in standard rake too. 
(its just more likely that the drake will make this kind of bug 
manifest).

BTW, good job James.
-- 
Posted via http://www.ruby-forum.com/.