error pushing new branches to launchpad

[notmyname]

john@laptop:~/Documents/openswift$ bzr --version
DID YOU RUN THE TESTS
Bazaar (bzr) 2.3.1
  Python interpreter: /usr/bin/python 2.7.1
  Python standard library: /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7
  Platform: Darwin-11.0.0-x86_64-i386-64bit
  bzrlib: /Library/Python/2.7/site-packages/bzrlib
  Bazaar configuration: /Users/john/.bazaar
  Bazaar log file: /Users/john/.bzr.log

Copyright 2005-2010 Canonical Ltd.
http://bazaar.canonical.com/

bzr comes with ABSOLUTELY NO WARRANTY.  bzr is free software, and
you may use, modify and redistribute it under the terms of the GNU
General Public License version 2 or later.

Bazaar is part of the GNU Project to produce a free operating system.

---------------------------

john@laptop:~/Documents/openswift$ git --version
git version 1.7.4.4

-------------------------

john@laptop:~/Documents/openswift$ git st
# On branch master
nothing to commit (working directory clean)
john@laptop:~/Documents/openswift$ git co -b test_change
Switched to a new branch 'test_change'
john@laptop:~/Documents/openswift$ git st
# On branch test_change
nothing to commit (working directory clean)
john@laptop:~/Documents/openswift$ echo "some change" >>AUTHORS 
john@laptop:~/Documents/openswift$ git diff
diff --git a/AUTHORS b/AUTHORS
index c70ab82..e22fd44 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -37,3 +37,4 @@ Kapil Thangavelu
 Conrad Weidenkeller
 Chris Wedgwood
 Cory Wright
+some change
john@laptop:~/Documents/openswift$ git commit -am "some change"
[test_change 89c8665] some change
 1 files changed, 1 insertions(+), 0 deletions(-)
john@laptop:~/Documents/openswift$ git bzr push lp:~notmyname/swift/some_change
Branched 335 revision(s).
15:41:29 Starting import ...
bzr: ERROR: exceptions.AttributeError: 'BTreeBuilder' object has no attribute '_find_ancestors'

Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/bzrlib/commands.py", line 926, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/bzrlib/commands.py", line 1126, in run_bzr
    ret = run(*run_argv)
  File "/Library/Python/2.7/site-packages/bzrlib/commands.py", line 691, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/Library/Python/2.7/site-packages/bzrlib/commands.py", line 713, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/Library/Python/2.7/site-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/Users/john/.bazaar/plugins/fastimport/cmds.py", line 316, in run
    params, verbose, user_map=user_map)
  File "/Users/john/.bazaar/plugins/fastimport/cmds.py", line 43, in _run
    return proc.process(p.iter_commands)
  File "/Users/john/.bazaar/plugins/fastimport/processors/generic_processor.py", line 308, in process
    super(GenericProcessor, self)._process(command_iter)
  File "/Library/Python/2.7/site-packages/fastimport/processor.py", line 76, in _process
    handler(self, cmd)
  File "/Users/john/.bazaar/plugins/fastimport/processors/generic_processor.py", line 533, in commit_handler
    handler.process()
  File "/Library/Python/2.7/site-packages/fastimport/processor.py", line 159, in process
    self.post_process_files()
  File "/Users/john/.bazaar/plugins/fastimport/bzr_commit_handler.py", line 660, in post_process_files
    self._get_inventories)
  File "/Users/john/.bazaar/plugins/fastimport/revision_store.py", line 376, in load_using_delta
    rev.parent_ids)
  File "/Library/Python/2.7/site-packages/bzrlib/decorators.py", line 140, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/Library/Python/2.7/site-packages/bzrlib/repository.py", line 2710, in get_known_graph_ancestry
    known_graph = self.revisions.get_known_graph_ancestry(revision_keys)
  File "/Library/Python/2.7/site-packages/bzrlib/groupcompress.py", line 1314, in get_known_graph_ancestry
    parent_map, missing_keys = self._index.find_ancestry(keys)
  File "/Library/Python/2.7/site-packages/bzrlib/groupcompress.py", line 2034, in find_ancestry
    return self._graph_index.find_ancestry(keys, 0)
  File "/Library/Python/2.7/site-packages/bzrlib/index.py", line 1519, in find_ancestry
    search_keys = index._find_ancestors(search_keys,
AttributeError: 'BTreeBuilder' object has no attribute '_find_ancestors'

bzr 2.3.1 on python 2.7.1 (Darwin-11.0.0-x86_64-i386-64bit)
arguments: ['/usr/local/bin/bzr', 'fast-import', '--import-marks=/Users/john/Documents/openswift/.git/bzr/map/master-bzr', '--export-marks=/Users/john/Documents/openswift/.git/bzr/map/test_change-bzr', '-', '/Users/john/Documents/openswift/.git/bzr/repo/test_change']
encoding: 'UTF-8', fsenc: 'utf-8', lang: 'en_US.UTF-8'
plugins:
  bash_completion      /Library/Python/2.7/site-packages/bzrlib/plugins/bash_completion [2.3.1]
  bzrtools             /Library/Python/2.7/site-packages/bzrlib/plugins/bzrtools [2.4.0]
  fastimport           /Users/john/.bazaar/plugins/fastimport [0.10.0]
  launchpad            /Library/Python/2.7/site-packages/bzrlib/plugins/launchpad [2.3.1]
  netrc_credential_store /Library/Python/2.7/site-packages/bzrlib/plugins/netrc_credential_store [2.3.1]
  news_merge           /Library/Python/2.7/site-packages/bzrlib/plugins/news_merge [2.3.1]

*** Bazaar has encountered an internal error.  This probably indicates a
    bug in Bazaar.  You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.
ERROR:root:bzr import failed

[termie]

this is the longest lived bug ever, it is currently in some progress from the bzr side, but i don't know what the timeline is: https://bugs.launchpad.net/bzr/+bug/541626

If you turn on debug in git-bzr (uncomment https://github.com/termie/git-bzr-ng/blob/master/git-bzr#L698 ) it should dump out the contents of the map files, which can help me debug, if i can at least get a reproducible test case i might be able to make some progress

[notmyname]

debug output from git-bzr

https://gist.github.com/1121213

[termie]

hrm, maybe what i really need to do is get more debugging into python-fastimport

[ivotron]

I encountered the same and couldn't proceed. I ended up creating the branch on bzr and importing it to git with git bzr import

[notmyname]

perhaps related

https://gist.github.com/1140360

[termie]

that gist is usually the result of not having a parent branch, git-bzr-ng defaults to the bzr branch associated with master, but if you're actually branched from something that is not coming from master then you sometimes need to specify the parent (I tried to come up with a way to guess which branch is most appropriate but it proved pretty unreliable)

Usage: git bzr push

Effectively a bzr push

Options:
-h, --help show this help message and exit
--parent_branch=PARENT_BRANCH
use this branch as the parent branch
--overwrite push with bzr overwrite

In can also come up if you've done significant rebases, the usual solution to which is git bzr clear and then git bzr push --overwrite lp:~name/stuff/things

[notmyname]

ah. thanks.

unfortunately, trying to push it up gives me the original error (AttributeError: 'BTreeBuilder' object has no attribute '_find_ancestors')

[termie]

so, i am beginning to find a pattern (just did some nova work again so was using this)... here's what I do and maybe you can confirm that you've done similar

i do a checkout of nova done with git bzr clone lp:nova
do some work in a branch, git bzr push lp:~termie/nova/whatever, works fine

later on some changes have landed in trunk, so i do a git bzr pull to get the new changes
work on some new stuff in a new branch, git bzr push lp:~termie/nova/whatever2, fails with the above error

do a fresh checkout of nova, fetch the branch from the first checkout into it and rebase on master, push... and it works

[termie]

... ergo, something about pulling in new data creates intractable situations, for a long time i've felt that bzr or lp was changing commit ids on me, something related to the merge commits it does... i feel like they can get new sub-commits or something that triggers some git arrangement that triggers some search for this fabled "ancestor"... just thinking out loud here

[SirVer]

Same Problem here for me. Is there still a known workaround? Using bzr 2.3.0 did not help resolving the issue for me (this is mentioned in the README)