attempt to check out SVN repo never gets anywhere

[Stuart P. Bentley]

When I try to check out an SVN branch like http://tortoisesvn.tigris.org/svn/tortoisesvn/trunk/src/Resources/svg/Overlays/ (I was doing this one as a branch copy), tbzrcommandw starts bzr, which subsequently does nothing (as far as I can tell from the blank status box and progress bar). If I hit cancel, nothing changes until I manually kill the bzr process via Task Manager.

About Tortoise Bazaar
Tortoise Bazaar 0.2rc1
Executable: C:\Program Files\Bazaar\tbzrcommandw.exe
Library: C:\Program Files\Bazaar\lib\library.zip\tbzrlib
Copyright 2008-2009 Canonical Ltd.
About Bazaar
Bazaar (bzr) 1.18rc1
  Python interpreter: C:\Program Files\Bazaar\python25.dll 2.5.4
  Python standard library: C:\Program Files\Bazaar\lib\library.zip
  bzrlib: C:\Program Files\Bazaar\lib\library.zip\bzrlib
  Bazaar configuration: C:\Documents and Settings\Stuart P. Bentley\Application Data\bazaar\2.0
  Bazaar log file: C:\Documents and Settings\Stuart P. Bentley\My Documents\.bzr.log

Copyright 2005, 2006, 2007, 2008, 2009 Canonical Ltd.
http://bazaar-vcs.org/

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.

About Plugins
bzrtools 1.18
Various useful commands for working with bzr.
launchpad 1.18rc1
Launchpad.net integration plugin for Bazaar.
netrc_credential_store 1.18rc1
Use ~/.netrc as a credential store for authentication.conf.
qbzr 0.13.1
QBzr - Qt-based frontend for Bazaar
rebase 0.5.3
Rebase support.
svn 0.6.4
Support for Subversion branches

[Stuart P. Bentley (stuart)]

Doing this from the command shell successfully leads me to believe that this bug is caused by bzr prompting for the username and password.

[Alexander Belchenko (bialix)]

So, actually this bug in QBzr dialogs (because TortoiseBzr uses QBzr dialogs under the hood).

But the root of the problem begins from bzr-svn plugin: it should use usual bzrlib UIFactory methods to obtain password. I suspect it now uses direct access to console or something similar.

[Alexander Belchenko (bialix)]

I'd like to get some comments about this bug from main bzr-svn author Jelmer Vernoij before deciding what to do about it in QBzr.

[Jelmer Vernooij (jelmer)]

bzr-svn doesn't prompt for passwords itself but utilizes the UI factory.

[Alexander Belchenko (bialix)]

Jelmer Vernooij пишет:
> bzr-svn doesn't prompt for passwords itself but utilizes the UI factory.

We have support in QBzr to handle password prompt for transports, and it
works OK for other transports (e.g. bzr+ssh, ftp). Something different
with bzr-svn then.

[Jelmer Vernooij (jelmer)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Alexander Belchenko wrote:
> Jelmer Vernooij пишет:
>> bzr-svn doesn't prompt for passwords itself but utilizes the UI factory.
>
> We have support in QBzr to handle password prompt for transports, and it
> works OK for other transports (e.g. bzr+ssh, ftp). Something different
> with bzr-svn then.
>
On what platforms does this problem appear?

Jelmer
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[Alexander Belchenko (bialix)]

Originally bug filed as problem with TortoiseBzr. TortoiseBzr works only on Windows.

[Alexander Belchenko (bialix)]

Jelmer Vernooij пишет:
> Alexander Belchenko wrote:
>> Jelmer Vernooij пишет:
>>> bzr-svn doesn't prompt for passwords itself but utilizes the UI factory.
>> We have support in QBzr to handle password prompt for transports, and it
>> works OK for other transports (e.g. bzr+ssh, ftp). Something different
>> with bzr-svn then.
>>
> On what platforms does this problem appear?

Jelmer, I'm sure it does not depend on platform.
Can you point me exact code in bzr-svn which get password via UI factory?

[Jelmer Vernooij (jelmer)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Alexander,

Alexander Belchenko wrote:
> can you help us with bug 418252
> (https://bugs.launchpad.net/tortoisebzr/+bug/418252). I've asked
> you about the code in bzr-svn which used to get password. I need to
> know which ui methods you're using.
On Windows we use a Windows-specific credentials provider that is
provided by the Subversion libraries; I'm not sure what that does
exactly. On unix, we only rely on AuthenticationConfig.get_user() and
AuthenticationConfig.get_password().

Cheers,

Jelmer
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[Alexander Belchenko (bialix)]

So, QBzr cannot help here, because bzr-svn does not use ui.get_password method at all. And because TBZR uses QBzr under the hood, this means you can't access password protected svn repo on Windows with TortoiseBzr.

[Jelmer Vernooij (jelmer)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Alexander Belchenko wrote:
> So, QBzr cannot help here, because bzr-svn does not use
> ui.get_password method at all. And because TBZR uses QBzr under the
> hood, this means you can't access password protected svn repo on
> Windows with TortoiseBzr.
It *does* use ui.get_password(), just not directly. bzr-svn uses
bzrlib.config.AuthenticationConfig.get_{user,password} and *those* two
functions use bzrlib's ui interface.

I don't see why this bug report should be considered invalid.

Cheers,

Jelmer
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[Alexander Belchenko (bialix)]

Yes, we don't have get_user method in QBzr. This is filed as bug https://bugs.launchpad.net/qbzr/+bug/421851

But, Jelmer, you clearly said that on Windows bzr-svn don't use this interface. Maybe you have really serious reason to do this, but it clearly break GUI tools, especially TortoiseBzr, because it works without terminal.

[Jelmer Vernooij (jelmer)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Alexander Belchenko wrote:
> Yes, we don't have get_user method in QBzr. This is filed as bug
> https://bugs.launchpad.net/qbzr/+bug/421851
>
> But, Jelmer, you clearly said that on Windows bzr-svn don't use
> this interface. Maybe you have really serious reason to do this,
> but it clearly break GUI tools, especially TortoiseBzr, because it
> works without terminal.
No, I said that on Windows we *also* use another function call that is
provided by the Subversion libraries. This function call does not do
any prompting whatsoever, but retrieves passwords from a
(windows-specific) directory that is used for caching passwords by
Subversion.

Cheers,

Jelmer
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[Alexander Belchenko (bialix)]

Jelmer Vernooij пишет:
> Alexander Belchenko wrote:
>> Yes, we don't have get_user method in QBzr. This is filed as bug
>> https://bugs.launchpad.net/qbzr/+bug/421851
>>
>> But, Jelmer, you clearly said that on Windows bzr-svn don't use
>> this interface. Maybe you have really serious reason to do this,
>> but it clearly break GUI tools, especially TortoiseBzr, because it
>> works without terminal.
> No, I said that on Windows we *also* use another function call that is
> provided by the Subversion libraries. This function call does not do
> any prompting whatsoever, but retrieves passwords from a
> (windows-specific) directory that is used for caching passwords by
> Subversion.

But some code should write the password to the cache first, right?

[Jelmer Vernooij (jelmer)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Alexander Belchenko wrote:
> Jelmer Vernooij пишет:
>> Alexander Belchenko wrote:
>>> Yes, we don't have get_user method in QBzr. This is filed as
>>> bug https://bugs.launchpad.net/qbzr/+bug/421851
>>>
>>> But, Jelmer, you clearly said that on Windows bzr-svn don't use
>>> this interface. Maybe you have really serious reason to do
>>> this, but it clearly break GUI tools, especially TortoiseBzr,
>>> because it works without terminal.
>> No, I said that on Windows we *also* use another function call
>> that is provided by the Subversion libraries. This function call
>> does not do any prompting whatsoever, but retrieves passwords
>> from a (windows-specific) directory that is used for caching
>> passwords by Subversion.
>
> But some code should write the password to the cache first, right?
Yes, but that code isn't in bzr-svn. Only Subversion writes to that
cache since AuthenticationConfig doesn't have any infrastructure for
storing known valid passwords yet.

Cheers,

Jelmer
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[Alexander Belchenko (bialix)]

For testing future fix for get_user support in QBzr I need to find the way how to reproduce this bug. Is there any public open svn repo which force user name prompt for testing?

[Gary van der Merwe (garyvdm)]

http://tortoisesvn.tigris.org/svn/tortoisesvn/trunk/src/Resources/svg/Overlays/

Username: guest
password: (blank)

[Jelmer Vernooij (jelmer)]

This happens if you are trying to access the same Subversion repository from multiple instances of Bazaar, and are using the sqlite cache backend rather the tdb one. The TDB backend is automatically used if TDB (http://tdb.samba.org) is installed and allows concurrent access to the cache, whereas the SQLite one does not.

[Gary van der Merwe (garyvdm)]

I believe this is fixed by bug 421851. Please reopen if not.