Re: Extending the "rename" detection

I'm using one of the latest from svn and mine does rename or move files in
remote if I rename or move them in the local source directory. It does not
transfer them again.


On Thu, Dec 6, 2012 at 3:04 AM, Isaac Witmer <[email protected]> wrote:

> I know little about the unison code, but from my use, I've noticed
> that it does seem to keep track of the files. On a few occasions,
> unison has decided to recreate a file from another file that looked
> similar that was already local. (my version of unison--2.32.52--has
> the switch xferbycopying).
>
> I wonder if in your case unison is attempting to delete files first,
> and then when it gets around to xferbycopying, it doesn't have any
> local copy to transfer from.
>
> That pondering may be entirely useless to you. Hopefully someone else
> knows what they're talking about more than me.
>
> On Wed, Dec 5, 2012 at 3:44 PM, Nathan Thern <[email protected]> wrote:
> > Hello -
> > Longtime unison user. I have known for some time that renaming a file on
> one
> > replica will result in a simple "copy-and-delete" operation at the target
> > mirror replica when the two replicas are sync'd.
> >
> > Recently, I encountered a situation where several directories which
> > contained large files were renamed on a replica. It happens to be a kind
> of
> > "dropbox" folder for my family to put media content for me to download
> while
> > I am traveling. I unison sync the folder rather than rsync it because I
> > delete the content on my end as I consume it. My wife recently
> "helpfully"
> > re-organized some of the directories in that folder and I found my unison
> > process re-downloading big content that I actually already had because
> the
> > directories had been "renamed". As unison saw it, some directories had
> been
> > deleted and others added.
> >
> > So, I thought, "This could be a good addition to unison. Add a
> capability to
> > compare newly deleted files to newly added files and detect that they are
> > actually renames or moves across directories." I figured it would
> probably
> > best be added as a new command-line option.
> >
> > I downloaded the source and started looking at it. I do not know ocaml,
> but
> > was immediately impressed with the expressive power I could see.
> > Unfortunately, I soon got lost in the code.
> >
> > Any hints on where to get started in the source to implement this? I'm
> > currently working on learning ocaml, but I also want to get rolling on
> this
> > project as soon as I can.
> >
> > regards,
> > NT
> >
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-- 
Emre

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