[Buildbot-devel] Mutiple folders triggering a single product build

[Bob Hood]

I need to change my Buildbot configuration, and I'm seeking some
advice.  I'm using 0.7.11.

I have a single source repository from which two products are about to
be built.  I currently have each product in a separate SVN branch, and
that's all going fine.  However, we are going to integrate the products
into a single branch (under the trunk/).

Each project has a number of folders under the root upon which they are
dependent (one has two folders under the root, the other has at least
five).  I want to set up Buildbot such that a change in any of the
folders causes only that product upon which is it dependent to build. 
For example, if I have folders "build1" and "source1" for the first
product, I want changes in either of those folders to trigger a Buildbot
product build, but changes to any other folder under the root would be
ignored for this product build.  Likewise, "build2", "source2" and
"sdk2" would construct only product #2 if changes occurred within them,
even though they reside in the same folder as the first product's
folders (i.e., "trunk/build1" and "trunk/build2").

Is it possible to set this up using Buildbot?  It seemed to me that I
would need to make each Builder dependent upon more than a single
"branch" setting to make this happen, but the "branch" option only seems
to take a single value.  Could I munge this in the "split_files"
function and somehow return a common "watch" value for each product
depending upon which folder(s) registers the changes?

Consolidating each project under a single folder might make this easier,
but I need to see if I can accomplish this from the Buildbot side
without re-organizing the repository structure.

Thanks!