ReadOnly error doing update due to url aliasing

[Stuart Bishop]

$ bzr update
bzr: ERROR: bzrlib.errors.ReadOnlyError: A write attempt was made in a read only transaction on RemoteBranch(bzr+ssh://bazaar.launchpad.net/~launchpad/lp-source-dependencies/trunk/)

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 930, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1130, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 691, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 713, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/builtins.py", line 1483, in run
    old_tip = branch.update(possible_transports)
  File "/usr/lib/python2.7/dist-packages/bzrlib/decorators.py", line 217, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/branch.py", line 2632, in update
    self.pull(master, overwrite=True)
  File "/usr/lib/python2.7/dist-packages/bzrlib/branch.py", line 1108, in pull
    possible_transports=possible_transports, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/decorators.py", line 217, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/branch.py", line 3347, in pull
    master_branch.lock_write()
  File "/usr/lib/python2.7/dist-packages/bzrlib/remote.py", line 2770, in lock_write
    raise errors.ReadOnlyError(self)
ReadOnlyError: A write attempt was made in a read only transaction on RemoteBranch(bzr+ssh://bazaar.launchpad.net/~launchpad/lp-source-dependencies/trunk/)

You can report this problem to Bazaar's developers by running
    apport-bug /var/crash/bzr.1000.2011-06-04T19:52.crash
if a bug-reporting window does not automatically appear.

$ bzr info
Checkout (format: 2a)
Location:
       checkout root: .
  checkout of branch: bzr+ssh://bazaar.launchpad.net/%7Elaunchpad/lp-source-dependencies/trunk/

$ bzr version
Bazaar (bzr) 2.4b3
  Python interpreter: /usr/bin/python 2.7.1
  Python standard library: /usr/lib/python2.7
  Platform: Linux-2.6.38-8-generic-x86_64-with-Ubuntu-11.04-natty
  bzrlib: /usr/lib/python2.7/dist-packages/bzrlib
  Bazaar configuration: /home/stub/.bazaar
  Bazaar log file: /home/stub/.bzr.log

Copyright 2005-2011 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 A Meinel (jameinel)]

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Hash: SHA1

On 6/4/2011 9:55 PM, Stuart Bishop wrote:
> Public bug reported:
>
> $ bzr update
> bzr: ERROR: bzrlib.errors.ReadOnlyError: A write attempt was made in a read only transaction on RemoteBranch(bzr+ssh://bazaar.launchpad.net/~launchpad/lp-source-dependencies/trunk/)
>
> Traceback (most recent call last):
> File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 930, in exception_to_return_code
> return the_callable(*args, **kwargs)
> File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1130, in run_bzr
...

> ReadOnlyError: A write attempt was made in a read only transaction on RemoteBranch(bzr+ssh://bazaar.launchpad.net/~launchpad/lp-source-dependencies/trunk/)
>
> You can report this problem to Bazaar's developers by running
> apport-bug /var/crash/bzr.1000.2011-06-04T19:52.crash
> if a bug-reporting window does not automatically appear.
>
>
> $ bzr info
> Checkout (format: 2a)
> Location:
> checkout root: .
> checkout of branch: bzr+ssh://bazaar.launchpad.net/%7Elaunchpad/lp-source-dependencies/trunk/

^- Your checkout is of ".../%7Elaunchpad" but the "update" is running
against "/~launchpad". I think just doing "bzr bind
lp:~launchpad/lp-source-dependencies/trunk" will be sufficient to get
you unstuck.

John
=:->
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iEYEARECAAYFAk3s6UEACgkQJdeBCYSNAAPnFwCeKC5SntLpe7SjHQn51RsY1BOU
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=PdF/
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[Martin Pool (mbp)]

So what's the bug here? bzr needs to know they're the same object to lock them properly, but the name aliasing confuses it?

[Stuart Bishop (stub)]

I can confirm John's workaround got the branch back on its feet.

[Edmundo (eantoranz)]

I just had a bug marked as a duplicate of this one. In my case I ran into the same error by doing a bzr update on a branch that is linked to a SVN branch.

https://bugs.launchpad.net/bugs/996747

[Edmundo (eantoranz)]

Just tried with bind and it's still failing (by the way, https+urllib adresses are saved as https, so I have to correct it by hand afterwards with bzr config).

$ bzr config
branch:
  bound_location = https+urllib://blahblah/svn.repos/blahblah/branches/abranch
  bound = True
  tab_width = 8
  parent_location = https+urllib://blahblah/svn.repos/blahblah/branches/abranch
  parent_branch = https+urllib://blahblah/svn.repos/blahblah/branches/abranch
  parent branch = https+urllib://blahblah/svn.repos/blahblah/branches/abranch
bazaar:
  [DEFAULT]
  email = Edmundo Carmona <email address hidden>

Then:
$ bzr update -Ossl.cert_reqs=none
Not checking SSL certificate for 192.168.162.30: 443
bzr: ERROR: bzrlib.errors.ReadOnlyError: A write attempt was made in a read only transaction on SvnBranch('https://blahblah/svn.repos/blahblah/branches/abranch')

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('...

[Edmundo (eantoranz)]

Interestingly, in this last attemp, I'm not being asked about username/password.

[Tomasz Gajewski (tomga)]

I've just had same problem and I managed to solve it by binding to svn+https instead of https+urllib.

Hope this will help with solving the issue or workaround it.