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Add ability to fall back to fulls for all updates.

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Currently works around issue till we get a good fix in for 9.x.

Change-Id: I9c7225508fa8f46a5fa5e0b41abc4e373cc80085

BUG=8606
TEST=Tested by sending SEGV to a delta update during update and saw it successfully fall back to a full update and succeed.

Review URL: http://codereview.chromium.org/4258002
This commit is contained in:
Chris Sosa 2010-11-02 18:06:34 -07:00
parent 7333e2b4c4
commit a2a597d18b
1 changed files with 19 additions and 32 deletions
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51
bin/cros_au_test_harness.py
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@ -63,6 +63,21 @@ class AUTest(object):
return int(percent_passed) return int(percent_passed)
# TODO(sosa) - Remove try and convert function to DeltaUpdateImage().
def TryDeltaAndFallbackToFull(self, src_image, image, stateful_change='old'):
"""Tries the delta update first if set and falls back to full update."""
if self.use_delta_updates:
try:
self.source_image = src_image
self.UpdateImage(image)
except:
Warning('Delta update failed, disabling delta updates and retrying.')
self.use_delta_updates = False
self.source_image = ''
self.UpdateImage(image)
else:
self.UpdateImage(image)
def PrepareBase(self): def PrepareBase(self):
"""Prepares target with base_image_path.""" """Prepares target with base_image_path."""
pass pass
@ -130,28 +145,14 @@ class AUTest(object):
# with the dev channel. # with the dev channel.
percent_passed = self.VerifyImage(10) percent_passed = self.VerifyImage(10)
if self.use_delta_updates: self.source_image = base_image_path
# Update to - all tests should pass on new image. # Update to - all tests should pass on new image.
Info('Updating from base image on vm to target image.') Info('Updating from base image on vm to target image.')
try: self.TryDeltaAndFallbackToFull(base_image_path, target_image_path)
self.UpdateImage(target_image_path)
except:
if self.use_delta_updates:
Warning('Delta update failed, disabling delta updates and retrying.')
self.use_delta_updates = False
self.source_image = ''
self.UpdateImage(target_image_path)
else:
raise
self.VerifyImage(100) self.VerifyImage(100)
if self.use_delta_updates: self.source_image = target_image_path
# Update from - same percentage should pass that originally passed. # Update from - same percentage should pass that originally passed.
Info('Updating from updated image on vm back to base image.') Info('Updating from updated image on vm back to base image.')
self.UpdateImage(base_image_path) self.TryDeltaAndFallbackToFull(target_image_path, base_image_path)
self.VerifyImage(percent_passed) self.VerifyImage(percent_passed)
def testFullUpdateWipeStateful(self): def testFullUpdateWipeStateful(self):
@ -167,28 +168,14 @@ class AUTest(object):
# with the dev channel. # with the dev channel.
percent_passed = self.VerifyImage(10) percent_passed = self.VerifyImage(10)
if self.use_delta_updates: self.source_image = base_image_path
# Update to - all tests should pass on new image. # Update to - all tests should pass on new image.
Info('Updating from base image on vm to target image and wiping stateful.') Info('Updating from base image on vm to target image and wiping stateful.')
try: self.TryDeltaAndFallbackToFull(base_image_path, target_image_path, 'clean')
self.UpdateImage(target_image_path, 'clean')
except:
if self.use_delta_updates:
Warning('Delta update failed, disabling delta updates and retrying.')
self.use_delta_updates = False
self.source_image = ''
self.UpdateImage(target_image_path)
else:
raise
self.VerifyImage(100) self.VerifyImage(100)
if self.use_delta_updates: self.source_image = target_image_path
# Update from - same percentage should pass that originally passed. # Update from - same percentage should pass that originally passed.
Info('Updating from updated image back to base image and wiping stateful.') Info('Updating from updated image back to base image and wiping stateful.')
self.UpdateImage(base_image_path, 'clean') self.TryDeltaAndFallbackToFull(target_image_path, base_image_path, 'clean')
self.VerifyImage(percent_passed) self.VerifyImage(percent_passed)