mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-11-03 19:17:02 -05:00
115 lines
3.2 KiB
Python
115 lines
3.2 KiB
Python
#!/usr/bin/env python2
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# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
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__license__ = 'GPL v3'
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__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
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__docformat__ = 'restructuredtext en'
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import sys
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import os
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import imp
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class PydImporter(object):
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__slots__ = ('items', 'description')
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def __init__(self):
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self.items = None
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self.description = ('.pyd', 'rb', imp.C_EXTENSION)
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def find_module(self, fullname, path=None):
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if self.items is None:
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dlls_dir = os.path.join(sys.app_dir, 'app', 'bin')
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items = self.items = {}
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for x in os.listdir(dlls_dir):
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lx = x.lower()
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if lx.endswith(b'.pyd'):
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items[lx[:-4]] = os.path.abspath(os.path.join(dlls_dir, x))
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return self if fullname.lower() in self.items else None
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def load_module(self, fullname):
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m = sys.modules.get(fullname)
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if m is not None:
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return m
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try:
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path = self.items[fullname.lower()]
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except KeyError:
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raise ImportError(
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'The native code module %s seems to have disappeared from self.items'
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% fullname
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)
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package, name = fullname.rpartition(b'.')[::2]
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m = imp.load_module(
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fullname, None, path, self.description
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) # This inserts the module into sys.modules itself
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m.__loader__ = self
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m.__package__ = package or None
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return m
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def abs__file__():
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"""Set all module __file__ attribute to an absolute path"""
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for m in sys.modules.values():
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if hasattr(m, '__loader__'):
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continue # don't mess with a PEP 302-supplied __file__
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try:
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m.__file__ = os.path.abspath(m.__file__)
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except AttributeError:
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continue
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def aliasmbcs():
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import locale, codecs
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enc = locale.getdefaultlocale()[1]
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if enc.startswith('cp'): # "cp***" ?
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try:
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codecs.lookup(enc)
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except LookupError:
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import encodings
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encodings._cache[enc] = encodings._unknown
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encodings.aliases.aliases[enc] = 'mbcs'
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def add_calibre_vars():
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sys.new_app_layout = 1
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sys.resources_location = os.path.join(sys.app_dir, 'app', 'resources')
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sys.extensions_location = os.path.join(sys.app_dir, 'app', 'bin')
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dv = os.environ.get('CALIBRE_DEVELOP_FROM', None)
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if dv and os.path.exists(dv):
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sys.path.insert(0, os.path.abspath(dv))
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def run_entry_point():
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bname, mod, func = sys.calibre_basename, sys.calibre_module, sys.calibre_function
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sys.argv[0] = bname + '.exe'
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pmod = __import__(mod, fromlist=[1], level=0)
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return getattr(pmod, func)()
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def main():
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sys.frozen = 'windows_exe'
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sys.setdefaultencoding('utf-8')
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aliasmbcs()
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sys.meta_path.insert(0, PydImporter())
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sys.path_importer_cache.clear()
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import linecache
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def fake_getline(filename, lineno, module_globals=None):
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return ''
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linecache.orig_getline = linecache.getline
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linecache.getline = fake_getline
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abs__file__()
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add_calibre_vars()
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# Needed to bypass meaningless check in pywintypes.py
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sys.path.append(os.path.join(sys.app_dir, 'app', 'bin'))
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return run_entry_point()
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