cooker: bail out early if no files to build
This prevents a misleading backtrace:
ERROR: no files to build.
Command execution failed: Traceback (most recent call last):
File ".../bitbake/build/lib/bb/command.py", line 83, in runAsyncCommand
self.cooker.updateCache()
File ".../bitbake/build/lib/bb/cooker.py", line 779, in updateCache
if not self.parser.parse_next():
File ".../bitbake/build/lib/bb/cooker.py", line 969, in parse_next
cooker.bb_cache.sync()
UnboundLocalError: local variable 'cooker' referenced before assignment
(Bitbake rev:
060ef3d957615b7eb1209dc0d01ebeb53f8c4edc)
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Chris Larson <clarson@kergoth.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
