68 lines
2.8 KiB
Python
68 lines
2.8 KiB
Python
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# Copyright 2019, David Wilson
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its contributors
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# may be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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from __future__ import absolute_import
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import os.path
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import sys
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#
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# This is not the real Strategy implementation module, it simply exists as a
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# proxy to the real module, which is loaded using Python's regular import
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# mechanism, to prevent Ansible's PluginLoader from making up a fake name that
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# results in ansible_mitogen plugin modules being loaded twice: once by
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# PluginLoader with a name like "ansible.plugins.strategy.mitogen", which is
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# stuffed into sys.modules even though attempting to import it will trigger an
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# ImportError, and once under its canonical name, "ansible_mitogen.strategy".
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#
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# Therefore we have a proxy module that imports it under the real name, and
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# sets up the duff PluginLoader-imported module to just contain objects from
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# the real module, so duplicate types don't exist in memory, and things like
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# debuggers and isinstance() work predictably.
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#
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BASE_DIR = os.path.abspath(
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os.path.join(os.path.dirname(__file__), '../../..')
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)
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if BASE_DIR not in sys.path:
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sys.path.insert(0, BASE_DIR)
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import ansible_mitogen.loaders
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import ansible_mitogen.strategy
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Base = ansible_mitogen.loaders.strategy_loader.get('host_pinned', class_only=True)
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if Base is None:
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raise ImportError(
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'The host_pinned strategy is only available in Ansible 2.7 or newer.'
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)
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class StrategyModule(ansible_mitogen.strategy.StrategyMixin, Base):
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pass
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