[MacPorts] #23402: duplicity: OverflowError: signed integer is greater than maximum

[MacPorts]

#23402: duplicity: OverflowError: signed integer is greater than maximum
-----------------------------------+----------------------------------------
 Reporter:  trejkaz@…              |       Owner:  macports-tickets@…                   
     Type:  defect                 |      Status:  new                                  
 Priority:  Normal                 |   Milestone:                                       
Component:  ports                  |     Version:  1.8.2                                
 Keywords:                         |        Port:                                       
-----------------------------------+----------------------------------------
 Running duplicity to restore a backup, I reliably get this error at the
 same file every try, whether I run as a normal user or as root:

 {{{
 bernkastel:Recovered Morden trejkaz$ sudo duplicity restore --no-
 encryption scp://trejkaz@192.168.1.100//raid/backups/morden ./root

 ...

 Error '[Errno 1] Operation not permitted: 'root/var/lib/nfs/etab''
 processing var/lib/nfs/etab
 Error '[Errno 1] Operation not permitted: 'root/var/lib/nfs/rmtab''
 processing var/lib/nfs/rmtab
 Error '[Errno 1] Operation not permitted: 'root/var/lib/nfs/rpc_pipefs''
 processing .
 Error '[Errno 1] Operation not permitted: 'root/var/lib/nfs/sm/.keep_net-
 fs_nfs-utils-0'' processing var/lib/nfs/sm/.keep_net-fs_nfs-utils-0
 Traceback (most recent call last):
   File "/opt/local/bin/duplicity", line 1236, in <module>
     with_tempdir(main)
   File "/opt/local/bin/duplicity", line 1229, in with_tempdir
     fn()
   File "/opt/local/bin/duplicity", line 1183, in main
     restore(col_stats)
   File "/opt/local/bin/duplicity", line 538, in restore
     restore_get_patched_rop_iter(col_stats)):
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/patchdir.py", line 520, in Write_ROPaths
     ITR(ropath.index, ropath)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/lazy.py", line 329, in __call__
     if self.finish_branches(index) is None:
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/lazy.py", line 276, in finish_branches
     to_be_finished.call_end_proc()
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/lazy.py", line 366, in call_end_proc
     robust.check_common_error(self.on_error, self.end_process)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/robust.py", line 38, in check_common_error
     return function(*args)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/patchdir.py", line 560, in end_process
     self.dir_diff_ropath.copy_attribs(self.dir_new_path)
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/path.py", line 435, in copy_attribs
     util.maybe_ignore_errors(lambda: os.chown(other.name,
 self.stat.st_uid, self.stat.st_gid))
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/util.py", line 62, in maybe_ignore_errors
     return fn()
   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6
 /site-packages/duplicity/path.py", line 435, in <lambda>
     util.maybe_ignore_errors(lambda: os.chown(other.name,
 self.stat.st_uid, self.stat.st_gid))
 OverflowError: signed integer is greater than maximum
 bernkastel:~ trejkaz$
 }}}

 This effectively prevents restoring backups, making duplicity a write-only
 backup solution. :-D

 I have commented out the call to os.chown as a workaround.  There are
 mentions around the net that there was a Python bug like this, but the
 version being run is newer than the version in which it was fixed.

-- 
Ticket URL: <http://trac.macports.org/ticket/23402>
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