bzr-svn: can't do update from svn branch due to ReadOnlyError

[Edmundo]

I'm trying to do an update from a svn branch (using https+urllib) and I can't:

$ bzr update -Ossl.cert_reqs=none
Not checking SSL certificate for host: 443
HTTPS host, Realm: 'Subversion repository for blah blah' username: myusername
HTTPS myusername@192.168.162.30, Realm: 'Subversion repository for blah blah' password:
bzr: ERROR: bzrlib.errors.ReadOnlyError: A write attempt was made in a read only transaction on SvnBranch('https://blah/svn.repos/system/branches/RF_HL7.6905')

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 920, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1131, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 673, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 695, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 136, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 166, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/builtins.py", line 1742, in run
    old_tip = branch.update(possible_transports)
  File "/usr/lib/python2.7/dist-packages/bzrlib/decorators.py", line 218, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/branch.py", line 2715, in update
    self.pull(master, overwrite=True)
  File "/usr/lib/python2.7/dist-packages/bzrlib/branch.py", line 1133, in pull
    possible_transports=possible_transports, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/svn/branch.py", line 989, in pull
    master_branch.lock_write()
  File "/usr/lib/python2.7/dist-packages/bzrlib/plugins/svn/branch.py", line 690, in lock_write
    raise ReadOnlyError(self)
ReadOnlyError: A write attempt was made in a read only transaction on SvnBranch('https://blah/svn.repos/system/branches/RF_HL7.6905')

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: bzr-svn 1.2.1-1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14
Uname: Linux 3.2.0-24-generic-pae i686
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
Date: Tue May 8 15:25:46 2012
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 TERM=xterm
 LANG=en_US.UTF-8
 LANGUAGE=
SourcePackage: bzr-svn
UpgradeStatus: No upgrade log present (probably fresh install)

[Edmundo (eantoranz)]

I checked to see if there was a problem with svn update directly (I also have a svn checkout of that branch) and it worked perfectly.

[Jelmer Vernooij (jelmer)]

What version of bzr are you using?

[Edmundo (eantoranz)]

Damn it, I thought apport would collect that. I'll tell you the output
of bzr version tomorrow but here's what's in dependencies.tzxt (which
is probably pointing in the direction of bzr's version anyway):

python-bzrlib 2.5.0-2ubuntu2

[Edmundo (eantoranz)]

Just in case:

$ bzr version
Bazaar (bzr) 2.5.0
  Python interpreter: /usr/bin/python 2.7.3
  Python standard library: /usr/lib/python2.7
  Platform: Linux-3.2.0-24-generic-pae-i686-with-Ubuntu-12.04-precise
  bzrlib: /usr/lib/python2.7/dist-packages/bzrlib
  Bazaar configuration: /home/antoranz/.bazaar
  Bazaar log file: /home/antoranz/.bzr.log

Copyright 2005-2012 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.

$ bzr plugins
bash_completion 2.5.0
  Generate a shell function for bash command line completion.

bzrtools 2.5.0
  Various useful commands for working with bzr.

changelog_merge 2.5.0
  Merge hook for GNU-format ChangeLog files

git 0.6.8
  A GIT branch and repository format implementation for bzr.

launchpad 2.5.0
  Launchpad.net integration plugin for Bazaar.

netrc_credential_store 2.5.0
  Use ~/.netrc as a credential store for authentication.conf.

news_merge 2.5.0
  Merge hook for bzr's NEWS file.

po_merge 2.5.0
  Merge hook for ``.po`` files.

qbzr 0.22.2
  QBzr - Qt-based frontend for Bazaar

rewrite 0.6.3
  Rebase support.

svn 1.2.1
  Support for Subversion branches

weave_fmt 2.5.0
  Weave formats.

xmloutput 0.8.8
  This plugin adds an option (--xml) to log and provides an xml
version of some builtin commands.

[Edmundo (eantoranz)]

What could be an easy workaround until this is fixed? I could install bzr in /usr/local and bzr-svn as well, right? Which versions should I try of each?

[Jelmer Vernooij (jelmer)]

An easy workaround would be to use "svn update" instead.

I don't think using a newer version of bzr or bzr-svn would help here. This probably needs some more investigation, but I don't have time to do that myself.

[Edmundo (eantoranz)]

what do you mean with svn update? I don't think it will update bzr's
branch.... as a matter of fact, from svn's point of view, I don't
think it's a svn branch at all, is it?

[Jelmer Vernooij (jelmer)]

well, as far as I can tell you're trying to update a *svn* branch not a bzr branch. Does your local directory contain a .svn directory or a .bzr directory?

[Edmundo (eantoranz)]

It's a bzr branch for sure:

On the root of the branch:
$ ls -ld .bzr .svn
ls: cannot access .svn: No such file or directory
drwxrwxr-x 5 antoranz antoranz 4096 Mar 8 16:09 .bzr

[Jelmer Vernooij (jelmer)]

I suspect this is a dupe of bug 792898.