From: Robert Klemme <shortcutter@...>
Date: 2010-01-08T07:00:05+09:00
Subject: Re: Setting recursion depth

On 01/07/2010 09:17 PM, Stuart Clarke wrote:
> Hi all,
> 
> I have done some Googling regarding setting the depth of recursive
> search in a ruby script and all I have identified is File-Find. Is this
> all that can help me?
> 
> Basically I want to be able to specify the depth my script will work so
> if the depth is 4, the script will look at all items from the root to 4
> folders deep e.g
> 
> Root
>       Folder 1
>             Folder 2
>                   Folder 3
> 
> Any input is much appreciated.

You can use Find.prune for this.  Try:

ruby19 -r find -e 'Find.find("/usr/local"){|f| p f; Find.prune if 
f.scan(%r{/}).size > 4}'

------------------------------------------------------------- Find#prune
      prune()

      From Ruby 1.9.1
------------------------------------------------------------------------
      Skips the current file or directory, restarting the loop with the
      next entry. If the current file is a directory, that directory will
      not be recursively entered. Meaningful only within the block
      associated with Find::find.

      See the +Find+ module documentation for an example.

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/