[Buildbot-devel] SQLAlchemy version check fragile? Running buildbot master test suite on Ubuntu 14.04 beta 2

[Vasily]

Hi Dustin and all,
Maybe we should say we're using SQLAlchemy-migrate to get DB to 0.8.9, and
then using Alembic to migrate further.

Thanks,
Vasily
17.04.2014 6:52 пользователь "Dustin J. Mitchell" <dustin at v.igoro.us>
написал:

> Well, you definitely don't want to comment that out.  Unfortunately,
> sqlalchemy-migrate is unmaintained, and only compatible with
> sqlalchemy <= 0.7.10.
>
> The best way to fix this is to do your development in a virtualenv,
> where you can install an old version of SQLAlchemy:
>
> http://trac.buildbot.net/wiki/RunningBuildbotWithVirtualEnv
>
> There's a bug to convert to a much better DB migration tool, Alembic
> -- http://trac.buildbot.net/ticket/2590
>
> I became convinced last weekend at PyCon that we can't "migrate" to
> Alembic.  Instead, we'll just need to make a clean break and require
> alembic upgrades to start either from from a stock 0.8.9 database, or
> from an empty database.
>
> Dustin
>
> On Sat, Apr 12, 2014 at 3:44 PM, Dan Kegel <dank at kegel.com> wrote:
> > I was considering taking a stab at http://trac.buildbot.net/ticket/2425
> > so I fired up a development environment on my ubuntu 14.04 beta 2
> > workstation and ran the test suite with the commands
> >
> >   sudo apt-get build-dep buildbot
> >   git clone ...
> >   cd buildbot/master
> >   trial buildbot.test
> >
> > This said
> >  FAILED (skips=30, errors=197, successes=2758)
> > and produced lots of errors of the sort
> > exceptions.RuntimeError: SQLAlchemy version 0.8.4 is not supported by
> > SQLAlchemy-Migrate
> >
> > I tried working around this with the commands
> >
> >   sudo apt-get build-dep python-migrate
> >   sudo apt-get install python-dev
> >   sudo pip install --upgrade sqlalchemy-migrate
> >
> > but then the test just failed with
> >
> > exceptions.RuntimeError: SQLAlchemy version 0.9.4 is not supported by
> > SQLAlchemy-Migrate
> >
> > I then looked at the screen a little more closely and saw the error
> > was being thrown by
> > master/buildbot/db/enginestrategy.py in the lines
> >     def check_sqlalchemy_version(self):
> >         ...
> >         if version_tup > (0, 7, 10):
> >             raise RuntimeError("SQLAlchemy version %s is not supported
> by "
> >                                "SQLAlchemy-Migrate" % (version,))
> >
> > That warning might be out of date... seems a bit fragile, anyway.
> > Commenting it out seemed to let more tests run, and got me passing:
> >  PASSED (skips=39, successes=2946)
> >
> > This is probably old hat for actual buildbot developers, I'm just
> posting it in
> > case other newbies have trouble setting up a working dev environment.
> >
> >
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