43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
import os
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import mimetypes
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import importlib
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import pkgutil
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from typing import TypeVar
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from . import abstract, unsupported_extensions
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T = TypeVar('T', bound='abstract.AbstractParser')
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# This loads every parser in a dynamic way
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for module_loader, name, ispkg in pkgutil.walk_packages('.libmat2'):
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if not name.startswith('libmat2.'):
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continue
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elif name == 'libmat2.abstract':
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continue
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importlib.import_module(name)
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def _get_parsers() -> list:
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""" Get all our parsers!"""
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def __get_parsers(cls):
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return cls.__subclasses__() + \
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[g for s in cls.__subclasses__() for g in __get_parsers(s)]
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return __get_parsers(abstract.AbstractParser)
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def get_parser(filename: str) -> (T, str):
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mtype, _ = mimetypes.guess_type(filename)
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_, extension = os.path.splitext(filename)
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if extension in unsupported_extensions:
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return None, mtype
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for c in _get_parsers():
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if mtype in c.mimetypes:
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try:
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return c(filename), mtype
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except ValueError:
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return None, mtype
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return None, mtype
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