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bug#62572: cp --no-clobber behavior has changed
From: |
Christoph Anton Mitterer |
Subject: |
bug#62572: cp --no-clobber behavior has changed |
Date: |
Sat, 01 Apr 2023 02:05:15 +0200 |
User-agent: |
Evolution 3.46.4-1 |
In principle I have no strong opinion on what the behaviour should be.
But if one strictly follows the POSIX wording:
> The following exit values shall be returned:
> 0
> All input files were [copied/moved] successfully.
> >0
> An error occurred.
The change seems to make sense, as one could argue that the above ain't
the case with -n if the destination already exists.
It's however open to debate whether --no-clobber - were it in POSIX -
would have fallen into that spirit.
But at least as of corutils 9.1 's cp info page it was documented as:
>An exit status of zero indicates success, and a nonzero value
>indicates failure.
together with:
> ‘-n’
> ‘--no-clobber’
> Do not overwrite an existing file; silently do nothing instead.
> This option overrides a previous ‘-i’ option. This option is
> mutually exclusive with ‘-b’ or ‘--backup’ option.
that doesn't seem like failure to me.
So it kinda breaks the "promise" made by the documentation.
I like Pádraig's idea in message #26... but no idea whether it should
be more POSIX like (thus non-zero when nothing was copied) or more
backwards compatible.
Cheers,
Chris.
- bug#62572: cp --no-clobber behavior has changed, Alberto Salvia Novella, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Sam James, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Paul Eggert, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Sven Joachim, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Paul Eggert, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Pádraig Brady, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Paul Eggert, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Alberto Salvia Novella, 2023/03/31
- bug#62572: cp --no-clobber behavior has changed, Alberto Salvia Novella, 2023/03/31
bug#62572: cp --no-clobber behavior has changed, Alberto Salvia Novella, 2023/03/31
bug#62572: cp --no-clobber behavior has changed,
Christoph Anton Mitterer <=