[Buildbot-devel] Questions on source step's clobbering

[Axel Hecht]

I have opened a thread on the mercurial list,
http://www.nabble.com/testing-multiple-mercurial-versions-for-buildbot-integration-td21230703.html
.

I didn't get a whole lot of info on which versions to test, but I already
succeeded in using virtualenv to set up testing sandboxes with different hg
versions.

Axel

2008/12/31 Marcus Lindblom <macke at yar.nu>

>
>
> Axel Hecht wrote:
>
>> I'd recommend doing the following:
>>
>> hg pull (1)
>> hg update -C -r branch (default to default)
>> patch.
>>
>
> That's what I'm working on.
>
> I've gotten it to work for testCheckoutBranch by using hg identify --num
> --branch and checking for -1 or the branch name.
>
>  (1) Note, hg versions prior to 1.1 may run into race conditions on pull.
>> hg pull -r tip works around the race condition, but doesn't pull all heads
>> on all branches. In this particular case, you might be able to actually pull
>> -r given_branch. For branches, that should work, for tags not, though. The
>> pulled clone by revision doesn't have the changeset which actually adds the
>> tag to hgtags, so the remote clone is on the right revision, but doesn't
>> have the tag information to confirm that. One way to work around this is to
>> actually pull the branch, and update to revision on that branch. That should
>> work at least as long as there is only one head per branch. It might be a
>> good idea to get the hg version on the slave to only jump through these
>> loops for versions older than 1.1. Or you make the source class just clobber
>> on error, that might be a good idea anyhow.
>>
>
> Argh. I've read about that and I still got a headache from trying to
> understand it. I think I'll wait a bit. Perhaps you could take a look at  my
> patch once I'm done with it and see what needs doing?
>
> Also I don't have a lot of hg versions set up for testing at the moment. It
> might be worth to try that, to make sure we're compatible. What versions are
> best tested? 1.0 and 1.1 are no-brainers, but otherwise?
>
> There seem to be a lot of them lying around, when looking at the buildbot
> source, testing for all those (6-10 version) seem like an awful lot of work.
> :-/
>
> Should we set up buildbot.net buildslaves for this?
>
> Cheers
> /Marcus
>
>
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