From: Ilmari Heikkinen <kig@...>
Date: 2005-01-13T06:12:34+09:00
Subject: Re: Comparing two files for equality

Hello,

On 12.1.2005, at 21:56, georgesawyer wrote:

> I came up with this:
>
> [snip]

could also be written as (not thread-safe):

def <=> f
   result = size <=> f.size
   ( result = read(SIZE) <=> f.read(SIZE) ) until result != 0 or eof?
   result
end

def IO.compare_file(fn1, fn2)
   open(fn1){|f1|
     open(fn2){|f2| f1<=> f2 }}
end
would be quite thread-safe
maybe i'm worrying too much...

one other solution:
FileUtils.compare_file(fn1, fn2)


cheers