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[Duplicity-talk] Option like rsync --fuzzy ?
From: |
Vlada Macek |
Subject: |
[Duplicity-talk] Option like rsync --fuzzy ? |
Date: |
Fri, 25 Jan 2008 13:26:02 +0100 |
User-agent: |
Thunderbird 2.0.0.6 (X11/20071022) |
Hello,
the main question:
Is it planned to make duplicity able to handle renaming/moving? I
tried to rename the group of extensions jpg->JPG and all files were
stored again as an increment.
Background:
Having pointed to this project by a friend, I'm investigating its
usability for the backups of my servers. The feature list is
interesting and goes beyond the capabilities of script tooling I
created and use. There is one point I didn't find in documentation
or source.
The rsync utility offers interesting option --fuzzy: "It tells rsync
that it should look for a basis file for any destination file that
is missing. The current algorithm looks in the same directory as the
destination file for either a file that has an identical size and
modified-time, or a similarly-named file. If found, rsync uses the
fuzzy basis file to try to speed up the transfer.".
The --fuzzy shines when I rename lots of big photos, rsync fixes the
destination relatively quickly. Although to be better for my
purposes, I'd welcome 1) the same-mtime restriction to go away and
2) all directories (not just the current one) to be searched for
bases. I'm sure rsync would find bases more often, but probably at
the cost of source CPU/disk load.
Nevertheless, it seems that duplicity cannot work fuzzy.
Have a nice day,
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