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ffae400179
This adds SPDX license headers in place of the wide assortment of things currently in our script headers. We default to GPL-2.0-only except for the oeqa code where it was clearly submitted and marked as MIT on the most part or some scripts which had the "or later" GPL versioning. The patch also drops other obsolete bits of file headers where they were encoountered such as editor modelines, obsolete maintainer information or the phrase "All rights reserved" which is now obsolete and not required in copyright headers (in this case its actually confusing for licensing as all rights were not reserved). More work is needed for OE-Core but this takes care of the bulk of the scripts and meta/lib directories. The top level LICENSE files are tweaked to match the new structure and the SPDX naming. (From OE-Core rev: f8c9c511b5f1b7dbd45b77f345cb6c048ae6763e) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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class ClassRegistryMeta(type):
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"""Give each ClassRegistry their own registry"""
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def __init__(cls, name, bases, attrs):
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cls.registry = {}
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type.__init__(cls, name, bases, attrs)
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class ClassRegistry(type, metaclass=ClassRegistryMeta):
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"""Maintain a registry of classes, indexed by name.
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Note that this implementation requires that the names be unique, as it uses
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a dictionary to hold the classes by name.
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The name in the registry can be overridden via the 'name' attribute of the
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class, and the 'priority' attribute controls priority. The prioritized()
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method returns the registered classes in priority order.
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Subclasses of ClassRegistry may define an 'implemented' property to exert
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control over whether the class will be added to the registry (e.g. to keep
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abstract base classes out of the registry)."""
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priority = 0
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def __init__(cls, name, bases, attrs):
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super(ClassRegistry, cls).__init__(name, bases, attrs)
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try:
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if not cls.implemented:
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return
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except AttributeError:
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pass
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try:
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cls.name
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except AttributeError:
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cls.name = name
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cls.registry[cls.name] = cls
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@classmethod
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def prioritized(tcls):
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return sorted(list(tcls.registry.values()),
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key=lambda v: (v.priority, v.name), reverse=True)
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def unregister(cls):
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for key in cls.registry.keys():
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if cls.registry[key] is cls:
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del cls.registry[key]
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