[rdiff-backup-users] Native windows build - issue with long path names

[Ryan How]

Hi,

I did a few searches, but I couldn't find any issues discussed about 
long path names in the native windows build.

I have been having issues with the 255 char limit (or round abouts) in 
pathnames, but I am unsure as to why because I using the native windows 
build (which shouldn't have this limit?). The error originates in os.pyc 
(which, I have no python experience, but isn't an rdiff-backup source 
file?). I get the same error when using dos paths (ie. c:\blah) and UNC 
paths (which otherwise seem to work well with the native windows build, 
yay). I could understand the issue with the dos paths, but not with the 
UNC paths. I have a feeling this may actually be a python issue?

Error is below.

Cheers,

Ryan


Processing changed file Documents and Settings/ryan/Local 
Settings/Temp/test_dir_980382089/deep1/deep1_1/deep1_1_1/deep1_1_1_1/deep1_1_1_1_1/deep1_1_1_1_1_1/deep1_1_1_1_1_1_1/deep1_1_1_1_1_1_1_1
Exception '[Error 206] The filename or extension is too long: 
'\\\\127.0.0.1\\c$\\Documents and Settings\\ryan\\Local 
Settings\\Temp\\test_dir_2042584358/rdiff-backup-data/increments/Documents 
and Settings/ryan/Local 
Settings/Temp/test_dir_980382089/deep1/deep1_1/deep1_1_1/deep1_1_1_1/deep1_1_1_1_1/deep1_1_1_1_1_1/deep1_1_1_1_1_1_1'' 
raised of class '<type 'exceptions.WindowsError'>':
 File "rdiff_backup\Main.pyc", line 302, in error_check_Main
 File "rdiff_backup\Main.pyc", line 322, in Main
 File "rdiff_backup\Main.pyc", line 278, in take_action
 File "rdiff_backup\Main.pyc", line 344, in Backup
 File "rdiff_backup\backup.pyc", line 38, in Mirror
 File "rdiff_backup\backup.pyc", line 232, in patch
 File "rdiff_backup\rorpiter.pyc", line 284, in __call__
 File "rdiff_backup\backup.pyc", line 622, in start_process
 File "rdiff_backup\longname.pyc", line 203, in get_mirror_inc_rps
 File "rdiff_backup\longname.pyc", line 189, in find_inc_pair
 File "rdiff_backup\longname.pyc", line 128, in check_new_index
 File "rdiff_backup\longname.pyc", line 111, in wrap_call
 File "rdiff_backup\longname.pyc", line 122, in make_parent
 File "rdiff_backup\rpath.pyc", line 964, in makedirs
 File "os.pyc", line 171, in makedirs

Traceback (most recent call last):
 File "rdiff-backup", line 23, in <module>
 File "rdiff_backup\Main.pyc", line 302, in error_check_Main
 File "rdiff_backup\Main.pyc", line 322, in Main
 File "rdiff_backup\Main.pyc", line 278, in take_action
 File "rdiff_backup\Main.pyc", line 344, in Backup
 File "rdiff_backup\backup.pyc", line 38, in Mirror
 File "rdiff_backup\backup.pyc", line 232, in patch
 File "rdiff_backup\rorpiter.pyc", line 284, in __call__
 File "rdiff_backup\backup.pyc", line 622, in start_process
 File "rdiff_backup\longname.pyc", line 203, in get_mirror_inc_rps
 File "rdiff_backup\longname.pyc", line 189, in find_inc_pair
 File "rdiff_backup\longname.pyc", line 128, in check_new_index
 File "rdiff_backup\longname.pyc", line 111, in wrap_call
 File "rdiff_backup\longname.pyc", line 122, in make_parent
 File "rdiff_backup\rpath.pyc", line 964, in makedirs
 File "os.pyc", line 171, in makedirs
WindowsError: [Error 206] The filename or extension is too long: 
'\\\\127.0.0.1\\c$\\Documents and Settings\\ryan\\Local 
Settings\\Temp\\test_dir_2042584358/rdiff-backup-data/increments/Documents 
and Settings/ryan/Local 
Settings/Temp/test_dir_980382089/deep1/deep1_1/deep1_1_1/deep1_1_1_1/deep1_1_1_1_1/deep1_1_1_1_1_1/deep1_1_1_1_1_1_1'