[Duplicity-talk] Problems with "librsync error 103 while in patch cycle"

[Echo Nolan]

Hi All.

I'm trying to restore a backup. Here's what happens with the version of duplicity shipping with Ubuntu 13.10 (0.6.21):

address@hidden:~$ rm -r restore && duplicity file://enolan-desktop-backup restore/
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: Sun Jan 15 08:05:07 2012
GnuPG passphrase:
python: ERROR: (rs_tube_catchup) reached end of file while copying literal data through buffers
python: ERROR: (rs_job_complete) patch job failed: unexpected end of input
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1411, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1404, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1338, in main
    restore(col_stats)
  File "/usr/bin/duplicity", line 632, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 526, in Write_ROPaths
    for ropath in rop_iter:
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 499, in integrate_patch_iters
    final_ropath = patch_seq2ropath( normalize_ps( patch_seq ) )
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 479, in patch_seq2ropath
    misc.copyfileobj( current_file, tempfp )
  File "/usr/lib/python2.7/dist-packages/duplicity/misc.py", line 166, in copyfileobj
    buf = infp.read(blocksize)
  File "/usr/lib/python2.7/dist-packages/duplicity/librsync.py", line 80, in read
    self._add_to_outbuf_once()
  File "/usr/lib/python2.7/dist-packages/duplicity/librsync.py", line 94, in _add_to_outbuf_once
    raise librsyncError(str(e))
librsyncError: librsync error 103 while in patch cycle

I googled, and found this ticket in Ubuntu's bugtracker: https://bugs.launchpad.net/duplicity/+bug/662442

It seemed like the same problem, and oh look, someone has already committed a patch allowing me to continue restoring a backup containing broken files (https://code.launchpad.net/~mterry/duplicity/catch-seq-copy-error/+merge/186106). So I grabbed duplicity from bzr (bzr branch lp:duplicity) and built it. Trying with that version gives a different error however:

address@hidden:~/duplicity$ bin/duplicity file://../enolan-desktop-backup ../restore
Import of duplicity.backends.dpbxbackend Failed: No module named dropbox
Local and Remote metadata are synchronized, no sync needed.
Last full backup date: Sun Jan 15 08:05:07 2012
GnuPG passphrase:
python: ERROR: (rs_tube_catchup) reached end of file while copying literal data through buffers
python: ERROR: (rs_job_complete) patch job failed: unexpected end of input
Traceback (most recent call last):
  File "bin/duplicity", line 1466, in <module>
    with_tempdir(main)
  File "bin/duplicity", line 1459, in with_tempdir
    fn()
  File "bin/duplicity", line 1393, in main
    restore(col_stats)
  File "bin/duplicity", line 687, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/home/enolan/duplicity/duplicity/patchdir.py", line 535, in Write_ROPaths
    for ropath in rop_iter:
  File "/home/enolan/duplicity/duplicity/patchdir.py", line 507, in integrate_patch_iters
    filename = patch_seq[-1].get_ropath().get_relative_path()
AttributeError: 'NoneType' object has no attribute 'get_ropath'

Can any of you help me out? This is my only copy of several important files.

Regards,
Echo Nolan