tree 224c90bfa32458b8870312b410a39fb1b26c7f14
parent 72facdc8e2a4c4c9de9a101755ac0547c90ae546
author James E. Blair <jeblair@redhat.com> 1502985192 -0700
committer James E. Blair <jeblair@redhat.com> 1502991452 -0700

Use cached branch list in dynamic config

When performing a dynamic reconfiguration, we currently ask
sources for a list of all branches on all projects.  This takes
about 2.5 minutes at openstack production scale.  Instead, since
there should not be any changes to branches introduced by a
dynamic reconfiguration, use the previously cached list of branches.

The dictionary referenced here has an entry for every project branch
regardless of whether there is any configuration in that branch, so
it is an effective cache of all branches.

Change-Id: I5a1d7e2a04891aff18277b67f4ea7c890dd91899