c26fbb2387
Simple refactoring and minor code adjustments to make resumption from backend actually work: - call engine.compile and check for missing dependencies on every run; - misc.Failure equality semantics adjusted; - load failures from backend on every run. Change-Id: I8a0462f2dec0ec66a19ee6a5ef10e4be48110e19
46 lines
1.3 KiB
Python
46 lines
1.3 KiB
Python
# -*- coding: utf-8 -*-
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright (C) 2013 Yahoo! Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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from taskflow.patterns import linear_flow as lf
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from taskflow import task
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class UnfortunateTask(task.Task):
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def execute(self):
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print('executing %s' % self)
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boom = os.environ.get('BOOM')
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if boom:
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print('> Critical error: boom = %s' % boom)
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raise SystemExit()
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else:
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print('> this time not exiting')
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class TestTask(task.Task):
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def execute(self):
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print('executing %s' % self)
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def flow_factory():
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return lf.Flow('example').add(
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TestTask(name='first'),
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UnfortunateTask(name='boom'),
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TestTask(name='second'))
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