Re: parallel does not preserve symlinked directory structure on remote

[Benjamin Leutner]

I just had to add yet another rsync flag, namely "-L" in order to 
transfer the actual file a symlink points to instead of the symlink 
itself when using --transferfile

This gave me the idea that maybe instead of hard-coding all rsync 
options, parallel could accept additional rsync flags and pass them on 
to rsync.
Implemented like that, it would give the user access to the full rsync 
functionality without breaking compatibility with old platforms.


On 07/22/2017 05:07 PM, Benjamin Leutner wrote:
> How about introducing an additional flag, e.g. --legacy, and if given, 
> switch the rsync call to the old behavior instead?
> Or would this cause significant overhead?
>
>
>
> On 07/22/2017 12:57 PM, Hubert Kowalski wrote:
> > My recommenation would be to drop this concerns and thus drop 
> > compatibility with Redhat 9 and CentOS 3. Both redhat 9 and centos 3 
> > are ancient by any means. Redhat 9 was released in 2003 and Centos 3 
> > was released in 2004. I can't find anything about RedHat 9, but 
> > "next" RHEL (RHEL 3) had definitive end of life in 2014. Centos 3 was 
> > EOLed in 2010.
> >
> > > Dnia 22 lipiec 2017 o 00:40 Ole Tange <ole@tange.dk> napisał(a):
> > >
> > >
> > > On Fri, Jun 23, 2017 at 7:48 AM, Ole Tange <ole@tange.dk> wrote:
> > >
> > > > My worry would be if old rsync do not support -K. In that case GNU
> > > > Parallel would be incompatible with old versions. But it seems -K 
> > was
> > > > supported back to before version 2.0.0, so that is not an issue.
> > > >
> > > > Fixed in Git.
> > >
> > > But it proved not to be the case, and my worry was justified:
> > >
> > > -K --keep-dirlinks was introduced in version 2.6.3. Date: Sat Jun 5
> > > 16:16:30 2004.
> > >
> > > and Redhat 9 runs:
> > >
> > > $ rsync --version
> > > rsync version 2.5.5 protocol version 26
> > >
> > > Centos 3 runs:
> > >
> > > $ rsync --version
> > > rsync version 2.5.7 protocol version 26
> > >
> > > What do we do?
> > >
> > > Not support Redhat 9/Centos 3?
> > >
> > > https://savannah.gnu.org/bugs/?51293
> > >
> > >
> > > /Ole
> > >

--
Benjamin Leutner M.Sc.
PhD candidate

Department of Remote Sensing
University of Wuerzburg
Campus Hubland Nord 86
97074 Wuerzburg, Germany

Tel: +49-(0)931-31 89594
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Email: benjamin.leutner@uni-wuerzburg.de
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