devtool: fix handling of errors during task execution

* If an error is logged while executing a task, we need to ensure we
  exit instead of assuming everything went OK.
* If we receive CookerExit, the server is shutting down and we need to
  stop waiting for events and probably exit (knotty does this). This
  will occur if an exception or bb.fatal() happens during an event
  handler.

This fixes a couple of issues highlighted when using devtool upgrade or
modify on a non-supported recipe with intel-iot-refkit together with
bitbake master, but I'd be very surprised if it were hard to reproduce
in other scenarios.

(From OE-Core rev: 65e644368fc9c294af96906528ee0cf30305e0a6)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/scripts/lib/devtool/standard.py b/scripts/lib/devtool/standard.py
index 22a9ec82c9..ec192238ed 100644
--- a/scripts/lib/devtool/standard.py
+++ b/scripts/lib/devtool/standard.py
@@ -498,18 +498,24 @@ def _extract_source(srctree, keep_temp, devbranch, sync, d, tinfoil):
                                 'logging.LogRecord',
                                 'bb.command.CommandCompleted',
                                 'bb.command.CommandFailed',
+                                'bb.cooker.CookerExit',
                                 'bb.build.TaskStarted',
                                 'bb.build.TaskSucceeded',
                                 'bb.build.TaskFailed',
                                 'bb.build.TaskFailedSilent'])
 
         def runtask(target, task):
+            error = False
             if tinfoil.build_file(target, task):
                 while True:
                     event = tinfoil.wait_event(0.25)
                     if event:
                         if isinstance(event, bb.command.CommandCompleted):
                             break
+                        elif isinstance(event, bb.cooker.CookerExit):
+                            # The server is going away, so drop the connection
+                            tinfoil.server_connection = None
+                            break
                         elif isinstance(event, bb.command.CommandFailed):
                             raise DevtoolError('Task do_%s failed: %s' % (task, event.error))
                         elif isinstance(event, bb.build.TaskFailed):
@@ -519,7 +525,11 @@ def _extract_source(srctree, keep_temp, devbranch, sync, d, tinfoil):
                         elif isinstance(event, logging.LogRecord):
                             if event.levelno <= logging.INFO:
                                 continue
+                            if event.levelno >= logging.ERROR:
+                                error = True
                             logger.handle(event)
+                if error:
+                    raise DevtoolError('An error occurred during do_%s, exiting' % task)
 
         # we need virtual:native:/path/to/recipe if it's a BBCLASSEXTEND
         fn = tinfoil.get_recipe_file(pn)