From: Hawksury Gear <blackhawk_932@...>
Date: 2010-04-08T21:16:28+09:00
Subject: Re: Copying all Files with New Name

Thanks very much , all worked very well. I can now,
- Copy all files from a directory with a new name to the required 
destination.

I would appreciate if you can give some suggestions regarding the 
following,

Problem: Defining a specific File Size when copying over, say of size= 
2MB
For example if source file size is = 20MB, I want to get total of 10 
files of size 2MB.

Something like,
          # when copying if file.size > 2MB "Stop"
                    AND
          # Create a new file
                again when copying if file.size > 2MB "Stop"
                       # Create a new file
                            # And so on...

Probably,dividing the file size by 2 and then creating that many files 
to copy the contents over
      so if file.size = 20
      total files = 20/2

Also the most difficult thing for me is how to keep track of what data 
has been copied over already ?

Something like,
         # Create a new file if size > 2MB
                # AND Copy the data from the point onwards.

I hope that I have explained well what I actually want to achieve.

Any suggestions would be much appreciated including any methods in ruby 
any common tricks for doing the above?

The Current Code i am using isn't intelligent it copies over an entire 
file regardless of the file size,

Works perfectly fine,

def unique_filename(location, basename = '', extension = '.txt', digits 
= 4)
  # Initializing file extension
  extension = extension ? ".#{extension}" : ''
  index = 0
  namer = lambda { 
"#{basename}#{index.to_s.rjust(digits,'0')}#{extension}" }
  name = namer.call
  while File.exists?(File.join(location, name))
    index = index + 1
    name = namer.call
  end
  File.join(location, name)
end

Many Thanks,
Gear
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