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52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
from __future__ import absolute_import, unicode_literals
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from virtualenv.app_data import AppDataDiskFolder, TempAppData
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from ..wheels.embed import get_embed_wheel
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from .periodic_update import periodic_update
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from .util import Version, Wheel, discover_wheels
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def from_bundle(distribution, version, for_py_version, search_dirs, app_data, do_periodic_update):
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"""
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Load the bundled wheel to a cache directory.
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"""
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of_version = Version.of_version(version)
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wheel = load_embed_wheel(app_data, distribution, for_py_version, of_version)
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if version != Version.embed:
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# 2. check if we have upgraded embed
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if isinstance(app_data, AppDataDiskFolder) and not isinstance(app_data, TempAppData):
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wheel = periodic_update(distribution, for_py_version, wheel, search_dirs, app_data, do_periodic_update)
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# 3. acquire from extra search dir
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found_wheel = from_dir(distribution, of_version, for_py_version, search_dirs)
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if found_wheel is not None:
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if wheel is None:
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wheel = found_wheel
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elif found_wheel.version_tuple > wheel.version_tuple:
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wheel = found_wheel
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return wheel
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def load_embed_wheel(app_data, distribution, for_py_version, version):
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wheel = get_embed_wheel(distribution, for_py_version)
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if wheel is not None:
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version_match = version == wheel.version
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if version is None or version_match:
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with app_data.ensure_extracted(wheel.path, lambda: app_data.house) as wheel_path:
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wheel = Wheel(wheel_path)
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else: # if version does not match ignore
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wheel = None
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return wheel
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def from_dir(distribution, version, for_py_version, directories):
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"""
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Load a compatible wheel from a given folder.
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"""
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for folder in directories:
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for wheel in discover_wheels(folder, distribution, version, for_py_version):
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return wheel
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return None
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