Unexpected rsync behavior with --relative and symlink destinations
Dave Dykstra
dwd at drdykstra.us
Thu Dec 5 20:45:01 EST 2002
--relative has caused confusion to many people. If you could come up with
a patch and/or a change to the man page that made it easier to understand
and/or more useful I think it would be welcome.
- Dave Dykstra
On Wed, Dec 04, 2002 at 03:00:42PM -0500, Christopher Schanzle wrote:
> Hello, all. Sorry if this topic has been hashed out before -- I didn't
> see it searching the archives of this list.
>
> I want to mirror a local system's /apps and /usr/local directories (both
> are real directories, not symlinks) to a remote system where /apps and
> /usr/local are symlinks to /local/apps and /local/usrlocal,
> respectively. The target directories exist on the remote system. I
> would have thought the following would do it:
>
> rsync -n -e ssh -av --relative /apps /usr/local /home dest:
>
> shows me the expected files to update. Removing the -n results in all
> the files being copied, with the first file being listed as "apps/"
> followed by filenames that shouldn't need to be copied and were not
> listed with the above "rsync -n ..." On the destination side, /apps is
> no longer a symlink and is replaced with a real directory. All files
> are resent/copied to this new directory. I tried these too:
>
> rsync -av -e ssh --relative /apps/. /usr/local/. dest:
> rsync -av -e ssh --relative /apps/* /usr/local/* dest:
> rsync -av -e ssh --relative /apps/*/ /usr/local/*/ dest:
>
> In each case, the symlink on dest:/apps was replaced with a directory.
>
> I realize I can work around this via separate commands, which works fine:
>
> rsync -av -e ssh /apps/ dest:/apps
> rsync -av -e ssh /usr/local/ dest:/usr/local
>
> Is this the expected behavior of --relative? If so, could the
> documentation be clarified?
>
> More specifically, if dest:/apps/apache-1.3.26/ exists and is up to date
> (again, where dest:/apps is a symlink):
>
> # rsync -n -av -e ssh --relative /apps/apache-1.3.26/ dest:
> building file list ... done
> wrote 177990 bytes read 20 bytes 39557.78 bytes/sec
> total size is 256768589 speedup is 1442.44
> # rsync -av -e ssh --relative /apps/apache-1.3.26/ dest:
> building file list ... done
> apps/
> apps/apache-1.3.26/
> /apps/apache-1.3.26/Makefile
> /apps/apache-1.3.26/Makefile.tmpl
> /apps/apache-1.3.26/apache_1.3.26.tar
> ^Crsync error: received SIGUSR1 or SIGINT (code 20) at rsync.c(229)
>
> I wouldn't expect (1) rsync would change touch dest:/apps at all, (2)
> differ so drastically in the output of "-n" and not, and (3) to replace
> dest:/apps symlink with a new directory.
>
> Both hosts are SPARC Solaris 2.8 systems using UFS filesystems.
>
> TIA,
> Chris
>
>
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