tree b3cbe8ad28af042e0aedefc852e3d867a49a7206
parent a962657f563831f35dc2654ffc59011d4ba4532f
author James E. Blair <jeblair@redhat.com> 1488407676 -0800
committer James E. Blair <jeblair@redhat.com> 1488568342 -0800

Report dynamic layout config errors

If Zuul encounters a syntax error when loading an in-repo layout,
report that as a failure on the change.  Try to provide as much
readable information as possible to allow the user to diagnose the
error.

All top-level configuration objects are updated to support a hidden
source context variable to aid in creating a useful error message.

Item.areAllJobsComplete is updated so that it returns true in the
case of a merge failure or config error.  In Zuulv2, we knew what
jobs we would run even in those cases, but in Zuulv3, we don't, so
the item does not have a job tree, so in those cases, the item does
not report that all jobs are complete.  Returining True in this case
allows the NNFI algorithm to continue and expel the item from the
queue, avoiding an inifinite loop.

The merge failure accessor method is simplified.

Change-Id: I9cf19b87c6af5926b5e8bb403b81ce0470e3592d