Comment 3 for bug 1406173

Looks like you had run with par2+?? before this run, then changed methods.
If that's the case, then you'll need to manually delete the .par2 files
from the remote and run again, or stick with the same method.

On Mon, Jan 12, 2015 at 3:22 PM, John Doe <email address hidden> wrote:

> Still getting this error, only tested when the cache
> (~/.cache/duplicity) doesn't exist. Version 0.7.1:-
>
> Local and Remote metadata are synchronized, no sync needed.
> Traceback (most recent call last):
> File "/usr/local/bin/duplicity", line 1500, in <module>
> with_tempdir(main)
> File "/usr/local/bin/duplicity", line 1494, in with_tempdir
> fn()
> File "/usr/local/bin/duplicity", line 1343, in main
> do_backup(action)
> File "/usr/local/bin/duplicity", line 1376, in do_backup
> globals.archive_dir).set_values()
> File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
> line 698, in set_values
> self.get_backup_chains(partials + backend_filename_list)
> File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
> line 821, in get_backup_chains
> add_to_sets(f)
> File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
> line 810, in add_to_sets
> if set.add_filename(filename):
> File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
> line 98, in add_filename
> self.set_manifest(filename)
> File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
> line 129, in set_manifest
> remote_filename)
> AssertionError: ('duplicity-full.20150112T202904Z.manifest.gpg',
> 'duplicity-full.20150112T202904Z.manifest.gpg.par2')
>
> --
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> https://bugs.launchpad.net/bugs/1406173
>
> Title:
> AssertionError when Duplicity sees .par2 files in the remote file list
>
> Status in Duplicity - Bandwidth Efficient Encrypted Backup:
> Fix Released
>
> Bug description:
> The assertion in collections.py add_filename is choking on .par2
> files. I believe it is during a process that is looking at the
> destination file list. This list includes .par2 files, but the
> filename parser is not aware of them and ends up with the assertion
> error.
>
> Traceback (most recent call last):
> File "/usr/bin/duplicity", line 1500, in <module>
> with_tempdir(main)
> File "/usr/bin/duplicity", line 1494, in with_tempdir
> fn()
> File "/usr/bin/duplicity", line 1343, in main
> do_backup(action)
> File "/usr/bin/duplicity", line 1376, in do_backup
> globals.archive_dir).set_values()
> File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line
> 698, in set_values
> self.get_backup_chains(partials + backend_filename_list)
> File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line
> 821, in get_backup_chains
> add_to_sets(f)
> File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line
> 810, in add_to_sets
> if set.add_filename(filename):
> File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line
> 102, in add_filename
> (pr.volume_number, self.volume_name_dict, filename)
> AssertionError: (1, {1:
> 'duplicity-full.20141229T025217Z.vol1.difftar.gpg'},
> 'duplicity-full.20141229T025217Z.vol1.difftar.gpg.par2')
>
> Duplicity version 0.7.0 (* see below), Python 2.7.3, Ubuntu 12.04.5 LTS
> Target filesystem: Linux
>
> * I am running Duplicity version 0.7.0 with a couple of patches applied
> in order to make par2+rsync work. Both of the patches appear to have
> already made it into the repository in 0.7.01 (2014/12/??):
> 1. I added 'rsync' to uses_netlock (see
> https://answers.launchpad.net/duplicity/+question/259173).
> 2. I added strip_prefix() in backend.py and replaced url_string.lstrip
> with the call to strip_prefix. This was necessary to make the par2+rsync://
> schema parse properly. (see
> http://bazaar.launchpad.net/~duplicity-team/duplicity/0.7-series/revision/1014
> )
>
> My command line:
> duplicity --archive-dir '/var/duply-cache' --name 'duply_officetest'
> --encrypt-key $ENCRYPTKEY --sign-key $SIGNKEY --verbosity 9
> --full-if-older-than 1Y --volsize 100 --asynchronous-upload
> --exclude-globbing-filelist /etc/duply/officetest/exclude $SOURCE
> par2+rsync://$USERNAME@$HOST//path/to/destination
>
> My solution:
> I believe the par2 backend should be filtering out .par2 files before
> returning the list of remote files. The list() method in par2backend.py did
> this before the backends were reorganized by revision 981 (
> http://bazaar.launchpad.net/~duplicity-team/duplicity/0.7-series/revision/981).
> My AssertionError problem was resolved when I restored that filtering that
> was removed in revision 981. I have attached a patch.
>
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