From: 7stud -- <bbxx789_05ss@...>
Date: 2007-10-21T15:41:02+09:00
Subject: Re: Problem using FileUtils to sort JPEG files

forgottenwizard wrote:
> The error I keep getting these error messages:
> 
> Exception 'Errno::ENOENT' at /usr/lib/ruby/1.8/fileutils.rb:1420 - no
> such file or directory - <insert pathname to where jpg is being moved
> to>
>
> Any clue as to the problem?


1) pix is already a string, so doing this:

#{pix}"

is unnecessary.


2) The following causes a syntax error:

If File.directory?(filetype) then

To see a similar syntax error, try this:

num = 10
If num == 10
  print 'yes'
end


3) Your default loop probably should be each(), unless you have a 
specific reason to use another loop:

Dir.glob("*.{jpeg,jpg,png}").each do |fname|

A for-loop has a different scope than each(), i.e. it does not create a 
new scope.  An each() loop creates a new scope, although it is leaky(see 
example below).


4) I couldn't find any documentation for the RMagick format() method, 
which is pretty typical of the horrible ruby documentation, however this 
works error free for me:

require 'fileutils'

Dir.chdir("../some_dir")
workdir = Dir.pwd   #outside of each block

Dir.glob("*.{jpeg,jpg,png}").each do |fname|
  filetype = fname.split(".")[-1]

  if File.directory?(filetype)
    FileUtils.move(fname, "#{workdir}/#{filetype}")   #workdir is 
accessible inside each()
  else
    Dir.mkdir(filetype)
    FileUtils.move(fname, "#{workdir}/#{filetype}")
  end
end



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