[EMAIL PROTECTED] wrote:
> (In reply to comment #4)
> > i can't find the option --no-tweak-hlinked in rsync.
>
> That's because there is no such option in rsync. It's a proposed patch. It's
> also not needed if you use --ignore-existing, as I suggested.
>
> I'm not planning to add the option you propose.
There's a problem with --ignore-existing in this context.
If you are making multiple snapshots of a directory (as prompted this
little discussion), often they are backups of some kind, and that
means you often want the snapshots to preserve the hard-link structure
of the source directory.
I.e. you'll want to use --ignore-existing with -H.
But that doesn't work very usefully:
mkdir source
touch source/1
ln source/1 source/2
Let's make a copy:
mkdir backup
rsync -avH --ignore-existing source/ backup/
But simulate as if it was aborted before finishing:
rm backup/2
Now let's redo the copy, to finish. Using --ignore-existing as suggested:
rsync -avH --ignore-existing source/ backup/
Check:
ls -l backup
>>> total 0
>>> -rw-r--r-- 1 jamie jamie 0 2007-07-13 21:07 1
Oh dear! It doesn't copy a/2.
This is logical but it's not useful for this operation.
Thus --ignore-existing is not suitable for finishing previously
aborted copies when you use -H, whether it's to save space or preserve
structure. And not using -H makes those backups much less like backups.
-- Jamie
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