From: Jeff Schwab <jeff@...>
Date: 2009-05-10T23:20:11+09:00
Subject: Re: rake variables

Jeff Schwab wrote:

> (1) Is there any way to set rake options from the within the Rakefile, 
> as though they had been specified on the command-line?

The short answer to this is no.  The long answer is that you can use 
rake as a library, and within your "rake replacement" script, 
preconfigure Rake.application.options however you so choose.

I've just patched rake with support for a RAKEOPT environment variable:

http://github.com/jeffs/rake/tree/master

$ echo 'task :default do |t| puts t.name end' > Rakefile
$ rake
(in /Users/jeff)
default
$ RAKEOPT=-s rake
default
$