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45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
import os.path
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from string import Template
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from functools import lru_cache
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from constants import TEMPLATE_PATH, ENCODING, WinSeries, Product
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@lru_cache(maxsize=None)
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def template(filename, strip_newlines=False):
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filename = os.path.join(TEMPLATE_PATH, filename)
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with open(filename, encoding=ENCODING) as f:
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text = f.read()
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if strip_newlines:
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text = text.rstrip('\r\n')
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t = Template(text)
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return t
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def version_key_fun(ver):
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return tuple(map(int, ver.split('.')))
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def find_driver(drivers, key, keyfun, low=0, hi=None):
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""" Bisect search on sorted linux drivers list """
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if hi is None:
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hi = len(drivers)
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L = hi - low
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if L == 0:
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return None
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elif L == 1:
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return drivers[low] if keyfun(drivers[low]) == key else None
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else:
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middle_key = keyfun(drivers[low + L // 2])
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if middle_key < key:
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return find_driver(drivers, key, keyfun, low + L // 2, hi)
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elif middle_key > key:
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return find_driver(drivers, key, keyfun, low, low + L // 2)
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else:
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return drivers[low + L // 2]
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def linux_driver_key(driver):
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return version_key_fun(driver['version'])
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def windows_driver_key(driver):
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return ((WinSeries[driver['os']], Product[driver['product']]) +
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version_key_fun(driver['version']) +
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(driver.get('variant'),))
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