One thing you can test is to go to line 210 and add an “echo” before the backup command then see what is being run in your log file.

duplicity_backup()
{
  echo ${DUPLICITY} ${OPTION} ${VERBOSITY} ${STATIC_OPTIONS} \
  --encrypt-key=${GPG_KEY} \
  --sign-key=${GPG_KEY} \
  ${EXCLUDE} \
  ${INCLUDE} \
  ${EXCLUDEROOT} \
  ${ROOT} ${DEST} \
  >> ${LOGFILE}
}

This will output the full command being run rather than execute it — you could see if it looks suspicious …

# ./dt-s3-backup.sh --backup
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1239, in ?
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1232, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1205, in main
    full_backup(col_stats)
  File "/usr/bin/duplicity", line 416, in full_backup
    globals.backend)
  File "/usr/bin/duplicity", line 294, in write_multivol
    globals.gpg_profile, globals.volsize)
  File "/usr/lib/python2.4/site-packages/duplicity/gpg.py", line 272, in GPGWriteFile
    file = GPGFile(True, path.Path(filename), profile)
  File "/usr/lib/python2.4/site-packages/duplicity/gpg.py", line 105, in __init__
    if globals.gpg_options:
AttributeError: 'module' object has no attribute 'gpg_options'

I have set the GPG_KEY variable in your script.

By any chance, would you suggest reverting duplicity back to a version that is known to work with your script? (Of course, if you have any idea how to solve this problem, and use the latest/greatest version, that would be ideal).

Thanks!

Yes, I am using the latest from github, as of earlier today.

PS – are you using the latest code from github ? We have some new features there.

Here is the relevant snippet (I’m pretty sure this is how I downloaded it; I don’t think I modified these lines at all):

# FULL BACKUP & REMOVE OLDER THAN SETTINGS
# Because duplicity will continue to add to each backup as you go,
# it will eventually create a very large set of files.  Also, incremental
# backups leave room for problems in the chain, so doing a "full"
# backup every so often isn't not a bad idea.
#
# You can either remove older than a specific time period:
#CLEAN_UP_TYPE="remove-older-than"
#CLEAN_UP_VARIABLE="31D"

# Or, If you would rather keep a certain (n) number of full backups (rather
# than removing the files based on their age), you can use what I use:
CLEAN_UP_TYPE="remove-all-but-n-full"
CLEAN_UP_VARIABLE="2"

Any ideas?

Also, as a side note, we have been working on a new version of the script available at: http://github.com/thornomad/dt-s3-backup.

I haven’t updated this blog yet but will do so soon.

Just updated to 6.07 and now getting an error

Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1236, in
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1229, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1115, in main
    action = commandline.ProcessCommandLine(sys.argv[1:])
  File "/usr/lib/python2.6/dist-packages/duplicity/commandline.py", line 876, in ProcessCommandLine
    args = parse_cmdline_options(cmdline_list)
  File "/usr/lib/python2.6/dist-packages/duplicity/commandline.py", line 450, in parse_cmdline_options
    (options, args) = parser.parse_args()
  File "/usr/lib/python2.6/optparse.py", line 1394, in parse_args
    stop = self._process_args(largs, rargs, values)
  File "/usr/lib/python2.6/optparse.py", line 1434, in _process_args
    self._process_long_opt(rargs, values)
  File "/usr/lib/python2.6/optparse.py", line 1509, in _process_long_opt
    option.process(opt, value, values, self)
  File "/usr/lib/python2.6/optparse.py", line 782, in process
    value = self.convert_value(opt, value)
  File "/usr/lib/python2.6/optparse.py", line 774, in convert_value
    return self.check_value(opt, value)
  File "/usr/lib/python2.6/optparse.py", line 769, in check_value
    return checker(self, opt, value)
  File "/usr/lib/python2.6/dist-packages/duplicity/commandline.py", line 110, in check_time
    return dup_time.genstrtotime(value)
  File "/usr/lib/python2.6/dist-packages/duplicity/dup_time.py", line 271, in genstrtotime
    return override_curtime - intstringtoseconds(timestr)
TypeError: unsupported operand type(s) for -: 'NoneType' and 'int'

I found some bugs on this script and I resolve it.
I want to improve the script and I do some little change.

Would you like to contact me by private email?

I can’t think of the gpg command off hand but it is something like --add-private-key …