On Jan 24, 2009, at 1:23 AM, freeslkr wrote:
Johannes H. Jensen <joh <at> pseudoberries.com> writes:
I'm trying to combine --max-file-size and --exclude in the following
way to back up everything in /home/joh/tmp/sync1 that's below 128MB:
rdiff-backup --max-file-size 134217728 --print-statistics --include
'/home/joh/tmp/sync1' --exclude '/*' / /media/Backup/FarSite
However rdiff-backup seems to ignore --exclude completely when
--max-file-size is specified and tries to backup the whole root
filesystem instead! Note that this works perfectly if I omit the
--max-file-size argument.
Is this the intended behaviour?
I'm not sure what is intended, and I haven't looked at the code,
but --max-file-size=X behaves like "include files with size less
than X," which short-circuits on a match. Thus, it works with
something like
rdiff-backup --exclude **.bak --max-file-size 134217728
/home/joh/tmp/sync1 /media/Backup/FarSite
But one is left wanting in many common situations, like yours. It
would be much more useful if it behaved like "exclude files with
size greater than X."
Well, "exclude files with size greater than X" is logically the same
as "include files with size less than or equal to X".
The problem is that rdiff-backup's selection logic supports only
include or exlucde (not ignore), and short-circuits. The short-
circuiting makes sense, but what is needed is ignore. With ignore
support, what you want is "ignore files with size less than or equal
to X, exclude files with size greater than X".
I'll add this use case to the IgnoreFiles suggested feature on the Wiki:
http://wiki.rdiff-backup.org/wiki/index.php/IgnoreFiles
Andrew
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