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Re: Patch for "mv -s" option
From: |
Brendan Byrd/SineSwiper |
Subject: |
Re: Patch for "mv -s" option |
Date: |
Fri, 19 Nov 2004 00:40:53 -0500 |
User-agent: |
Mozilla Thunderbird 0.7.2 (Windows/20040707) |
Paul Eggert wrote:
Brendan Byrd/SineSwiper <address@hidden> writes:
+ All source file names must be absolute (starting with @samp{/}) unless the
+ destination files are in the current directory.
This seems like a serious limitation. Can't you remove it, by using
canonicalize_file_name say?
This limitation also exists in the "cp -s" command. I copied that line
from the "cp -s" docs. Example:
address@hidden:~/tmp/a> mv -s b/f .
mv: `b/f': can make relative symbolic links only in current directory
address@hidden:~/tmp/a/b> cp -s f ..
cp: `../f': can make relative symbolic links only in current directory
So, it looks like it's expected behavior. One annoying thing I found
with that, is that it says that error message AFTER it's moved and tried
to create a symlink with the file. So you end up with the file already
moved, and a broken symlink in tmp/a/b called [f -> ./f].
This may be related to the un-implemented (or rather un-ported from
copy.c) "goto un_backup" routine. At the very least, it should exit
before the symlink call. I'm going to try to fix the original problem
by moving that current directory check to the beginning of the do_move sub.
BTW, can anybody explain the purpose of the backup function in the "mv"
command? I'd like to port the un_backup stuff, but I'm not quite sure
how it works, or even if it's worth porting. (Does anybody make backups
during a move, even with so much error checking to ensure the file was
moved?)
Also, what happens with examples like "mv -s f .."?
Works just fine:
address@hidden:~/tmp/a/b> mv -s f ..
address@hidden:~/tmp/a/b> dir
total 0
lrwxrwxrwx 1 blkb users 4 2004-11-19 00:14 f -> ../f
--
Brendan Byrd/SineSwiper <address@hidden>
Computer techie, Perl hacker, and all-purpose Internet guru
Resonator Software (http://www.ResonatorSoft.org/)
- Patch for "mv -s" option, Brendan Byrd/SineSwiper, 2004/11/05
- Re: Patch for "mv -s" option, Philip Rowlands, 2004/11/05
- Re: Patch for "mv -s" option, Brendan Byrd/SineSwiper, 2004/11/08
- Re: Patch for "mv -s" option, Paul Eggert, 2004/11/08
- Re: Patch for "mv -s" option, Paul Eggert, 2004/11/08
- Re: Patch for "mv -s" option, Jim Meyering, 2004/11/08
- Re: Patch for "mv -s" option, Paul Eggert, 2004/11/08
- Re: Patch for "mv -s" option, Jim Meyering, 2004/11/09
- Re: Patch for "mv -s" option, Brendan Byrd/SineSwiper, 2004/11/15
- Re: Patch for "mv -s" option, Paul Eggert, 2004/11/16
- Re: Patch for "mv -s" option,
Brendan Byrd/SineSwiper <=
- Re: Patch for "mv -s" option, Brendan Byrd/SineSwiper, 2004/11/19
- Re: Patch for "mv -s" option, Paul Jarc, 2004/11/19
- Re: Patch for "mv -s" option, Brendan Byrd/SineSwiper, 2004/11/22
- Re: Patch for "mv -s" option, Paul Jarc, 2004/11/22
Re: Patch for "mv -s" option, Paul Eggert, 2004/11/05