From: Joe Wirtley <joew@...>
Date: 2008-02-13T05:22:48+09:00
Subject: New Ruby developer Rake questions

I am relatively new to Ruby and I am trying to introduce Rake to build
my .NET system.  I have a series of related projects that I'd like to
build either separately or together.  Conceptually, I have the following
structure:

Root
   Rakefile
   Supporting ruby files

   Child Project 1
      Rakefile

   Child Project 2
      Rakefile

I want to be able to build each child project separately, or the entire
tree with the root rakefile.  I have two questions:

1. I have supporting ruby files (defining tasks) in the root folder that
I want to be referenced from the child project rakefiles.  I'm not
thrilled about something like:

   require '..\..\Support.rb'

but it does seem to work.  What is the "best" way to handle this?  I
would rather that the scripts work on any machine with the same relative
directory structures.

2. What is the best way to handle these "nested" rakefiles?

I've tried something like this to include the child rakefiles in the
root rakefile:

   namespace "child_project1" do
       require 'ChildProject1\rakefile.rb'
   end

   task :default => [ "child_project1:default" ]

The problem I have with this approach is in the child rakefiles.  I
specify relative paths to files within the child rakefiles, which works
great when I run the child rakefile within its own folder.  However,
when I require it from a parent rakefile, the relative paths don't work
out.  I've tried to leverage the __FILE__ variable to identify files
relative to the rakefile, but cannot make it work successfully (mostly I
can't make it work elegantly, which makes me think there some Ruby magic
I don't know).  So what's the best way to approach this?

Thanks in advance,
Joe
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