Adding support for versioned files in rsync
jw at pegasys.ws
Tue Oct 14 06:20:48 EST 2003
On Mon, Oct 13, 2003 at 03:57:37PM -0400, Jason M. Felice wrote:
> On Mon, Oct 13, 2003 at 05:18:00PM +0100, Andy Henson wrote:
> > I propose a new option:
> > --comp-file=<file>
> > allowing:
> > rsync -vvtPB --comp-file=$BASE remote.host:$NEW .
> Specifying this for each file would be murder for my purposes, but I
> like the concept. I think there needs to be some sort of configurable
> logic for determining a "fallback" file when one doesn't exist. In my
> case, it might be nice to have a "fallback directory" and if the file doesn't
> exist here, check in the fallback directory.
See --compare-dest and --link-dest.
> That doesn't help with ISO images, though.
> It would be nice if some generic method that solves all these problems
> could be devised. In my case, I would need to figure out the
> highest-versioned file to use if the file we were syncing didn't already
> exist. I can't think of a simple way to make that work.
> It will never help with rsync-2.5.6.tar.gz vs. rsync-2.5.5.tar.gz
> anyway, since any small change early in the stream will cause the entire
> file to be encoded differently (side affect of how compression
> algorithms work).
See the rsyncable patch for gzip which can solve this
J.W. Schultz Pegasystems Technologies
email address: jw at pegasys.ws
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