-o creates empty output on null patch (fwd)

[Christoph Berg]

Hi,

the appended bug report was reported as Debian bug #386188:

Christoph
-- 
address@hidden | http://www.df7cb.de/cs/
Universität des Saarlandes, Compiler Design Lab
> --- Begin Message ---
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> Subject: 
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> -o creates empty output on null patch
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> Date: 
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> Tue, 05 Sep 2006 23:13:43 +0200
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> Package: patch
> Version: 2.5.9-4
> Severity: normal
>
> [11/address@hidden:~/tmp$ ls -al
> total 16K
> drwxr-xr-x  2 mh mh 4.0K Sep  5 23:06 ./
> drwxr-xr-x 18 mh mh 4.0K Sep  5 16:58 ../
> -rwxr-xr-x  1 mh mh 5.5K Sep  5 23:04 some-file*
> [12/address@hidden:~/tmp$ patch some-file /dev/null
> [13/address@hidden:~/tmp$ ls -al
> total 16K
> drwxr-xr-x  2 mh mh 4.0K Sep  5 23:06 ./
> drwxr-xr-x 18 mh mh 4.0K Sep  5 16:58 ../
> -rwxr-xr-x  1 mh mh 5.5K Sep  5 23:04 some-file*
> [14/address@hidden:~/tmp$ patch -o other-file some-file /dev/null
> [15/address@hidden:~/tmp$ ls -al
> total 16K
> drwxr-xr-x  2 mh mh 4.0K Sep  5 23:06 ./
> drwxr-xr-x 18 mh mh 4.0K Sep  5 16:58 ../
> -rw-------  1 mh mh    0 Sep  5 23:06 other-file
> -rwxr-xr-x  1 mh mh 5.5K Sep  5 23:04 some-file*
> [16/address@hidden:~/tmp$    
>
> I think that patch -o should create a copy of the input file if fed a
> null patch, as this is the same behavior as when editing a file in
> place with a null patch.
>
> Greetings
> Marc
>
> -- System Information:
> Debian Release: testing/unstable
>   APT prefers unstable
>   APT policy: (500, 'unstable'), (500, 'stable')
> Architecture: i386 (i686)
> Shell:  /bin/sh linked to /bin/bash
> Kernel: Linux 2.6.17.11-zgsrv
> Locale: LANG=C, LC_CTYPE=de_DE (charmap=ISO-8859-1)
>
> Versions of packages patch depends on:
> ii  libc6                        2.3.6.ds1-3 GNU C Library: Shared libraries
>
> patch recommends no packages.
>
> -- no debconf information
>
>
>
> --- End Message ---

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