From: dblack@...
Date: 2003-01-12T10:38:51+09:00
Subject: Re: 'require' search path

Hi --

On Sun, 12 Jan 2003, Tom Sawyer wrote:

> On Saturday 11 January 2003 04:23 am, Tim Bates wrote:
> > I wish 'require' would count the current directory as the directory the
> > file is in, rather than the directory the script is being run from.
>
> wish granted:
>
> module Kernel
>   alias :require_basic :require
>   def require(file_or_directory)
>     if FileTest.directory?(file_or_directory)
>       require "#{file_or_directory}/#{file_or_directory}"
>     else
>       fp = File.dirname(File.expand_path(file_or_directory))
>       $: << fp
>       r = require_basic file_or_directory
>       i = $LOAD_PATH.index(fp)
>       $LOAD_PATH.delete_at(i) if i
>       return r
>     end
>   end
> end
>
> please test and improve upon. i have only done so minorly. notice also that it
> adds my much wished for ability to auto-require things like 'dbi/dbi' just by
> using 'dbi'.

And seems to do away with the ability to require things like 'scanf'
just by using 'scanf'....


candle:~/hacking/ruby$ ruby req.rb
req.rb:10:in `require': No such file to load -- scanf/scanf (LoadError)
        from req.rb:10:in `require'
        from req.rb:6:in `require'
        from req.rb:18

In any event, I think it might be best to consider writing a new
method, rather than overriding require, if you want to create a new
package-loading functionality.  'require' and 'load' are spoken for,
and you're going to end up quarantining your code from the rest of
Ruby if you redefine them.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav