"View diff against previous revision" does nothing, even in Natty classic

[Oliver Joos]

I run rabbitvcs-nautilus 0.14.2.1-2~natty (latest from PPA) in Natty 11.04 (classic without effects).

Mainly I use SVN and everything works as expected. But if I click on sub-menu "View diff against previous revision" then nothing happens! I changed the logging level to DEBUG, but see no messages in RabbitVCS.log. I do see a Traceback in ~/.xsession-errors (see below). I found that this bug has already been reported upstream at the end of 2010, but was set to FIXED although its reporter still has problems.

Traceback in ~/.xsession-errors:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/rabbitvcs/ui/diff.py", line 322, in <module>
    diff_factory(options.vcs, pathrev1[0], pathrev1[1], pathrev2[0], pathrev2[1], sidebyside=options.sidebyside)
  File "/usr/lib/pymodules/python2.7/rabbitvcs/ui/diff.py", line 304, in diff_factory
    return classes_map[vcs](path1, revision_obj1, path2, revision_obj2, sidebyside)
KeyError: 'unknown'

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel O'Connor (daniel-oconnor)]

Hi all - can someone try from the current PPA?

Failing that, SVN? The unknown version control system issues have been revisited in trunk, and there's a few places they can occur - it would be good to understand the exact problem, and if the latest work has resolved it.

[Oliver Joos (oliver-joos)]

I tried it with RabbitVCS 0.15.1 (Subversion - 1.6.12., Pysvn - 1.7.2.0, ConfigObj - 4.7.2) and still see this bug (only line numbers have changed):

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/rabbitvcs/ui/diff.py", line 333, in <module>
    diff_factory(options.vcs, pathrev1[0], pathrev1[1], pathrev2[0], pathrev2[1], sidebyside=options.sidebyside)
  File "/usr/lib/pymodules/python2.7/rabbitvcs/ui/diff.py", line 315, in diff_factory
    return classes_map[vcs](path1, revision_obj1, path2, revision_obj2, sidebyside)
KeyError: 'unknown'

BTW: Now the submenu "Compare with previous version" also throws a Traceback and does nothing:

Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/rabbitvcs/util/contextmenu.py", line 406, in compare_tool_previous_revision
    pathrev1 = rabbitvcs.util.helper.create_path_revision_string(self.vcs_client.get_repo_url(self.paths[0]), previous_revision_number)
AttributeError: VCS instance has no attribute 'get_repo_url'