RFE: extend --keep-dirlinks to files also
hendrik at sfs.uni-tuebingen.de
Tue Jul 8 13:28:35 GMT 2008
Matt McCutchen schreef:
> On Mon, 2008-07-07 at 12:49 +0200, Hendrik Maryns wrote:
>> I just read the thread
>> http://lists.samba.org/archive/rsync/2004-June/009678.html which
>> describes how --keep-dirlinks came to be. My use case is similar, but
>> I’d like a similar option for files as well.
>> Setup: in my public_html I have some symlinks which I send over as
>> files, with -L (for various reasons: partly, because they are copies of
>> current work which is done elsewhere, or because several websites use
>> the same files, such as SSI footers). However, I also want to check
>> whether my colleague changed the files on the server, so first I do an
>> update. However, this replaces the links with the files themselves.
>> My current usage is:
>> # First look whether stuff changed on the other side (shouldn’t)
>> # rsync -rtKPuzb webserver:public_html/ /home/hendrik/public_html/Hendrik/
>> # Then put changes from here.
>> rsync -rtkKLPzC --delete --delete-excluded
>> /home/hendrik/public_html/Hendrik/ webserver:public_html
>> As you can see, I have the first line commented out, because it replaces
>> symlinks. I’d like something similar to --keep-dirlinks which follows
>> links on the receiver and compares the files linked to with those sent.
>> Is this possible, or is it an RFE?
> If files aren't supposed to change directly on the server, it seems to
> me that you could just drop the first command, add -uvv to the second
> command, watch for any "FILE is newer" messages, and handle those files
> manually. If files do change, consider using the two-way synchronizer
> Unison ( http://www.cis.upenn.edu/~bcpierce/unison/ ); it can update
> files through symlinks, but I don't think it has an equivalent to
Files can change. Rarely, but my collaborators may want to make
changes. I think I’ll go for the -uvv option for now, but it would
really be nicer if the files that are linked to on the receiver were
Hm, I think I’ll grep the output of rsync for ‘newer’.
> A --keep-links option may still be worth having in rsync. Updating a
> file atomically through a symlink is nontrivial (one has to readlink the
> chain of symlinks and combine the paths to find the ultimate location to
> rename to), but Unison implements this, so I don't see why rsync
Should I put an RFE somewhere officially?
SFB 441 Linguistische Datenstrukturen
Seminar für Sprachwissenschaft
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