88 lines
2.3 KiB
Python
88 lines
2.3 KiB
Python
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import json
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import logging
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class Session:
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"""Represents a virtual environment creation session"""
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def __init__(self, verbosity, app_data, interpreter, creator, seeder, activators):
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self._verbosity = verbosity
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self._app_data = app_data
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self._interpreter = interpreter
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self._creator = creator
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self._seeder = seeder
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self._activators = activators
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@property
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def verbosity(self):
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"""The verbosity of the run"""
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return self._verbosity
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@property
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def interpreter(self):
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"""Create a virtual environment based on this reference interpreter"""
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return self._interpreter
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@property
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def creator(self):
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"""The creator used to build the virtual environment (must be compatible with the interpreter)"""
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return self._creator
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@property
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def seeder(self):
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"""The mechanism used to provide the seed packages (pip, setuptools, wheel)"""
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return self._seeder
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@property
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def activators(self):
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"""Activators used to generate activations scripts"""
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return self._activators
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def run(self):
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self._create()
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self._seed()
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self._activate()
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self.creator.pyenv_cfg.write()
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def _create(self):
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logging.info("create virtual environment via %s", self.creator)
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self.creator.run()
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logging.debug(_DEBUG_MARKER)
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logging.debug("%s", _Debug(self.creator))
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def _seed(self):
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if self.seeder is not None and self.seeder.enabled:
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logging.info("add seed packages via %s", self.seeder)
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self.seeder.run(self.creator)
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def _activate(self):
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if self.activators:
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active = ", ".join(type(i).__name__.replace("Activator", "") for i in self.activators)
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logging.info("add activators for %s", active)
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for activator in self.activators:
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activator.generate(self.creator)
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def __enter__(self):
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return self
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def __exit__(self, exc_type, exc_val, exc_tb): # noqa: U100
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self._app_data.close()
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_DEBUG_MARKER = "=" * 30 + " target debug " + "=" * 30
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class _Debug:
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"""lazily populate debug"""
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def __init__(self, creator):
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self.creator = creator
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def __repr__(self):
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return json.dumps(self.creator.debug, indent=2)
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__all__ = [
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"Session",
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]
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