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b8528da5a8
Move the /etc/os-release parser and platform detection code out of the private _importhook module. The ipaplatform module now contains an osinfo module that provides distribution, os, and vendor information. See: https://www.freedesktop.org/software/systemd/man/os-release.html See: https://pagure.io/freeipa/issue/7661 Signed-off-by: Christian Heimes <cheimes@redhat.com> Reviewed-By: Rob Crittenden <rcritten@redhat.com>
51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
#
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# Copyright (C) 2017 FreeIPA Contributors see COPYING for license
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#
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from __future__ import absolute_import
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import importlib
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import sys
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from ipaplatform.osinfo import osinfo
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class IpaMetaImporter(object):
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modules = {
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'ipaplatform.constants',
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'ipaplatform.paths',
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'ipaplatform.services',
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'ipaplatform.tasks'
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}
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def __init__(self, platform):
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self.platform = platform
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def find_module(self, fullname, path=None):
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"""Meta importer hook"""
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if fullname in self.modules:
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return self
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return None
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def load_module(self, fullname):
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"""Meta importer hook"""
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suffix = fullname.split('.', 1)[1]
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alias = 'ipaplatform.{}.{}'.format(self.platform, suffix)
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platform_mod = importlib.import_module(alias)
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base_mod = sys.modules.get(fullname)
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if base_mod is not None:
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# module has been imported before, update its __dict__
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base_mod.__dict__.update(platform_mod.__dict__)
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for key in list(base_mod.__dict__):
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if not hasattr(platform_mod, key):
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delattr(base_mod, key)
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else:
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sys.modules[fullname] = platform_mod
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return platform_mod
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metaimporter = IpaMetaImporter(osinfo.platform)
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sys.meta_path.insert(0, metaimporter)
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fixup_module = metaimporter.load_module
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