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Re: bug in copy-directory
From: |
Lennart Borgman |
Subject: |
Re: bug in copy-directory |
Date: |
Fri, 28 Jan 2011 17:51:00 +0100 |
On Fri, Jan 28, 2011 at 5:30 PM, Chong Yidong <address@hidden> wrote:
> Stefan Monnier <address@hidden> writes:
>
>>>> Actually on 23.2.92.1, copy-directory, called interactively or not copy
>>>> the files of directory A to existing directory B instead of copying
>>>> directory A inside directory B.(as a subdirectory of B).
>>
>>> Hmm, this is a bit problematic.
>> [...]
>>> The trouble is that Lisp callers might depend on the old behavior.
>>
>> Couldn't/shouldn't we distinguish between interactive and
>> non-interactive calls, then? I.e. have the interactive spec turn the
>> B into (expand-file-name (file-name-nondirectory A)) when B is an
>> existing directory.
>
> Wouldn't that be confusing? "Copy directory A to directory B" really
> ought to mean the same as "cp -r a b".
Isn't the semantics of "cp" broken + undescribed?
I had a directory x1, but no x2. Doing
cp -r x1 x2
works as I expect it to, i.e. x1 and x2 are identical.
However after a second
cp -r x1 x2
there is suddenly a directory x1 inside x2.
I really dislike this kind of context specific semantics that is both
unintuitive and undescribed.
- bug in copy-directory, Thierry Volpiatto, 2011/01/27
- Re: bug in copy-directory, Chong Yidong, 2011/01/28
- Re: bug in copy-directory, Thierry Volpiatto, 2011/01/28
- Re: bug in copy-directory, Lennart Borgman, 2011/01/28
- Re: bug in copy-directory, Thierry Volpiatto, 2011/01/28
- Re: bug in copy-directory, Lennart Borgman, 2011/01/28
- Re: bug in copy-directory, Jan Djärv, 2011/01/28
- Re: bug in copy-directory, Lennart Borgman, 2011/01/28
- Re: bug in copy-directory, Jan Djärv, 2011/01/28