[Buildbot-devel] VCS polling question

[Amber Yust]

Pollers (and other change sources) generate Changes. Changes are then passed
to all registered schedulers (or at least, those that are based on changes,
as opposed to those that are based on timing/triggering), and each Scheduler
individually decides whether or not it should pay attention to the change.
This is generally determined via the change_filter function which is passed
to the Scheduler during creation. See here for more details:

http://buildbot.net/buildbot/docs/0.8.1/Change-Filters.html#Change-Filters

<http://buildbot.net/buildbot/docs/0.8.1/Change-Filters.html#Change-Filters>
~Amber

On Tue, Nov 2, 2010 at 3:43 AM, Duncan Ferguson <
duncan_j_ferguson at yahoo.co.uk> wrote:

> Guys,
>
> After using buildbot for quite some time (since at least 0.72 iirc) there
> one question that has always bugged me - how are VCS changes associated with
> schedulers?
>
> For example, I have 28 SVNpoller's set up, each one is a different project
> we build in buildbot.  We have 24 build servers, each of which is associated
> with a factory for each of the 28 projects (our waterfall is very wide :) )
>
> When we had 1 project being built we were using the Scheduler to pick up
> changes, but as our projects grew we swapped to using Periodic so we could
> build some projects nightly (due to interdependencies) and some were
> manually kicked off.  Now we would like to swap back to using Scheduler for
> some of the projects.  However, I cannot see how the SVNPoller knows which
> Scheduler to tell to start the builds when a change comes in.
>
> All the VCS sources have a 'project' attribute that could be used for this,
> but that doesnt appear to be available on the Scheduler to link the two
> together.
>
> What am I missing?  I have read through the docs a few times and still
> havn't got it, and I am not much of a python coder to go through the
> source.....
>
> Thanks
>
>  Duncs
>
> Buildbot 0.8.2 (just upgraded)
>
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