I apparently reinvented the wheel. :-)
Thanks for the link, it is indeed very inspiring.
Quoting Ciprian Dorin Craciun <ciprian.crac...@gmail.com>:
On Sat, Jan 5, 2013 at 8:12 PM, <schu...@ime.usp.br> wrote:
I have been wondering whether it is possible to create a backup system
using mtree and rsync. Essentially, the user would create a mtree
specification of the source directory and copy it over to the destination
directory with rsync. Any changes in the destination could then be
detected before restoring with the mtree specification, which should
contain strong hashes of the files and should not contain the nlink
keyword.
A little bit off-topic, but there is a small tool that does
something similar to your suggested `mtree` usage, but specifically
tailored for backups, `rdup`:
http://miek.nl/projects/rdup
Although I've not used it myself (I use `rdiff-backup` and on
Linux), the idea is pretty similar with what you want to achieve:
* you run `rdup` with an old "descriptor file" plus a target path,
and in turn it generates:
* a new "descriptor file";
* a list of files that should be backed up;
* you then decide what you do with the list of files to be
backed-up (i.e. put them in a `tar`, `rysnc` them to a server, etc.);
Hope it helps,
Ciprian.
<schu...@ime.usp.br>
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