[Buildbot-devel] How to set revision number for nightly builds

[Tony Lazarew]

Hi,

I'll step in on behalf of Pavel with some details.

Bob, thank you for suggestion -- we use this approach currently.
Except for we don't perform any manipulations on source base (like
revert). But it still leads to a problem which I'll try to describe.

We have several platforms we build on and we want them all to use the
same revision for the nightly build. Generally it works just nice
because nightly build fires up at 12am and most of developers are
asleep. But we ran into the following situation:
1) a new revision r1 is committed just 5 mins before the midnight
2) one builder b1 is not able to finish its post-commit build before
midnight while others (b2, b3) finish time
3) nightly starts with a revision r1
4) new revision r2 arrives somewhere in time after the nightly took
off but before b1 finished building r1
5) b1 finishes r1 and starts nightly build but already with r2

So we get nightlies for both r1 and r2 on different builders which is
not what we want.

One kind of a solution as I see it is to use different builders for
nightly and post-commit builds. The most straightforward one but I
don't think we need that many builders doing mostly the same thing.

Another solution would be to make a customized Nightly scheduler which
will take the latest known revision from the pool of changes and put
it into queue for all builders whether they are ready to build or not.

Or maybe we're missing something and there's already a way to do this
using built-in schedulers. Any suggestions are appreciated.

Thanks,
Tony

2011/5/25 Mark Richardson (Internal) <mark.richardson at nag.co.uk>:
> Hi Bob,
> please accept my apologies. I am sure many of us are working through
> similar situations.
> Best wishes,
> Mark
>
> On 25/05/2011 16:01, Bob Hood wrote:
>> On 5/25/2011 8:26 AM, Mark Richardson (Internal) wrote:
>>> Hi all,
>>> Just adding an observation.
>>> I think Bob's solution is okay to the point where he reverts the
>>> source. A copy of the source should be archived for reference at
>>> least. (I do that before I start the compilation)
>>
>> I have post-build steps that do several things before I revert the
>> changes, such as construct and protect regression archives of each build
>> (with the revision modifications in place), package with an installer
>> and publish for testers. Reverting is the *very* last thing I do. :)
>>
>> Render me gone,                       |||
>> Bob                                 ^(===)^
>> ---------------------------------oOO--(_)--OOo---------------------------------
>>   We can't all be architects. Some of us excel at building from the blueprints.
>>
>>
>> ________________________________________________________________________
>> This e-mail has been scanned for all viruses by Star.
>> ________________________________________________________________________
>>
>>
>>
>> ------------------------------------------------------------------------------
>> vRanger cuts backup time in half-while increasing security.
>> With the market-leading solution for virtual backup and recovery,
>> you get blazing-fast, flexible, and affordable data protection.
>> Download your free trial now.
>> http://p.sf.net/sfu/quest-d2dcopy1
>>
>>
>>
>> _______________________________________________
>> Buildbot-devel mailing list
>> Buildbot-devel at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/buildbot-devel
>
> ________________________________________________________________________
> The Numerical Algorithms Group Ltd is a company registered in England
> and Wales with company number 1249803. The registered office is:
> Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom.
>
> This e-mail has been scanned for all viruses by Star. The service is
> powered by MessageLabs.
> ________________________________________________________________________
>
> ------------------------------------------------------------------------------
> vRanger cuts backup time in half-while increasing security.
> With the market-leading solution for virtual backup and recovery,
> you get blazing-fast, flexible, and affordable data protection.
> Download your free trial now.
> http://p.sf.net/sfu/quest-d2dcopy1
> _______________________________________________
> Buildbot-devel mailing list
> Buildbot-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/buildbot-devel
>



-- 
Tony