[PATCH][RFC] space saving incrementals

Dave Dykstra dwd at bell-labs.com
Tue Mar 12 05:41:07 EST 2002

On Fri, Mar 08, 2002 at 03:05:14PM -0800, jw schultz wrote:
> On Fri, Mar 08, 2002 at 03:45:04PM -0600, Dave Dykstra wrote:
> > I like link-dest, and the "-" for exclude-from/include-from was already
> > something I was planning to add one of these days along with the
> > --files-from option I still plan to write, but --compare-perms confuses
> > me.  Can you give examples of when you need it?
> > 
> > - Dave Dykstra
> sequence of commands:
> 	admin# rsync /project /vault/monday
> 	admin# chmod 666 /project/somefile
> 	admin# chown bin /project/someotherfile
> 	admin# rsync --link-dest=/vault/monday /project /vault/tuesday
> Now /vault/monday/somefile has perms of 666 and
> someotherfile is owned by bin.  I cannot restore the perms
> from /vault/monday.  That info is lost. /vault/monday no
> longer is an accurate representative of what existed when it
> was created.
> With --compare-perms somefile and someotherfile will not be
> linked between monday and tuesday even though the contents
> haven't changed.
> compare-perms only makes sense when you are using link-dest.

Why not just always do --compare-perms functionality with --link-dest?  I'd
rather not have more hard-to-explain options if they can be avoided.

- Dave Dykstra

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