From: Chad Fowler <chad@...>
Date: 2003-11-18T00:11:34+09:00
Subject: Re: Fileutils.cp bug?

On Mon, 17 Nov 2003, Wejn wrote:

# Hi,
# 
# On Mon, 17 Nov 2003, Chad Fowler wrote:
# 
# > I'm experiencing the following behavior in the latest CVS copy of ruby on 
# > both Windows and Linux.  I think it's a bug.
# > 
# > [chad@ns1 chad]$ cat test
# > Goodbye Cruel World!
# > [chad@ns1 chad]$ ruby -rfileutils -e 'FileUtils.cp("test", "test")'
# > 
# > [chad@ns1 chad]$ cat test
# > [chad@ns1 chad]$ ls -l test
# > -rw-rw-r--    1 chad     chad            0 Nov 17 08:35 test
# > [chad@ns1 chad]$
# > 
# > 
# > I would suggest the following small change.
# > 
# > Do others agree that this is a bug?
# 
# Well, I do think it's a bug ... but the patch is not enough, imho:
# 
# (5/wejn/ns) x$ echo "goodbye" > src
# (5/wejn/ns) x$ ruby18 -rfileutils -e 'FileUtils.cp("src", "src")'
# /usr/local/ruby-1.8.0/lib/ruby/1.8/fileutils.rb:315:in `cp': `src' and `src' are the same file (ArgumentError)
#         from /usr/local/ruby-1.8.0/lib/ruby/1.8/fileutils.rb:314:in `fu_each_src_dest'
#         from /usr/local/ruby-1.8.0/lib/ruby/1.8/fileutils.rb:314:in `cp'
#         from -e:1
# 
# ... ok ... but:
# 
# (5/wejn/ns) x$ ruby18 -rfileutils -e 'FileUtils.cp("src", "./src")'
# (5/wejn/ns) x$ ls -l src
# -rw-r--r--   1 wejn     wejn            0 Nov 17 15:04 src
# 
# ... problem :-(
# 
# What about comparation of [dev,inode] ?

Good point, Michal.  I thik I need some post-RubyConf rest :)

How about (File.expand_path("src") == File.expand_path("dest"))?