Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/planemo/engine/factory.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 """Module contains factory method for building class:`Engine` objects."""
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2
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3 import contextlib
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4
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5 from .cwltool import CwlToolEngine
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6 from .galaxy import (
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7 DockerizedManagedGalaxyEngine,
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8 ExternalGalaxyEngine,
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9 LocalManagedGalaxyEngine,
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10 )
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11 from .toil import ToilEngine
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12
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13
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14 UNKNOWN_ENGINE_TYPE_MESSAGE = "Unknown engine type specified [%s]."
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16
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17 def is_galaxy_engine(**kwds):
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18 """Return True iff the engine configured is :class:`GalaxyEngine`."""
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19 engine_type_str = kwds.get("engine", "galaxy")
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20 return engine_type_str in ["galaxy", "docker_galaxy", "external_galaxy"]
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21
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22
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23 def build_engine(ctx, **kwds):
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24 """Build an engine from the supplied planemo configuration."""
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25 engine_type_str = kwds.get("engine", "galaxy")
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26 if engine_type_str == "galaxy":
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27 engine_type = LocalManagedGalaxyEngine
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28 elif engine_type_str == "docker_galaxy":
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29 engine_type = DockerizedManagedGalaxyEngine
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30 elif engine_type_str == "external_galaxy":
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31 engine_type = ExternalGalaxyEngine
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32 elif engine_type_str == "cwltool":
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33 engine_type = CwlToolEngine
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34 elif engine_type_str == "toil":
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35 engine_type = ToilEngine
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36 else:
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37 raise Exception(UNKNOWN_ENGINE_TYPE_MESSAGE % engine_type_str)
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38
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39 return engine_type(ctx, **kwds)
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40
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41
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42 @contextlib.contextmanager
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43 def engine_context(ctx, **kwds):
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44 """A :func:`contextlib.contextmanager` engine builder for use with ``with`` statements.
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45
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46 https://docs.python.org/2/library/contextlib.html
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47 """
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48 engine = None
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49 try:
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50 engine = build_engine(ctx, **kwds)
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51 yield engine
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52 finally:
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53 if engine is not None:
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54 engine.cleanup()
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55
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56
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57 __all__ = (
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58 "is_galaxy_engine",
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59 "build_engine",
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60 "engine_context",
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61 )