[Buildbot-devel] using properties in factories to control creation of steps?

[Jim Rowan]

Hi,

I have a variable-length list of items that I want to process.  There  
are a few buildsteps that I'd execute for each one...

I want to the do the moral equivalent of

<set items from a property>
for i in items:
	factory.addStep(ShellCommand(... do something with $i)
	...


I didn't try it, but my understanding is that this won't work since  
the property isn't available at the time the configuration is read.   
Is there an idiom that does?  In my search I saw that the Chromium  
buildbot sources have a buildfactory class that may do something like  
this, but I couldn't follow how it might work.

(We're on 0.8.6p1)