mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-11-04 03:27:00 -05:00
91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
#!/usr/bin/env python
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# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
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# License: GPLv3 Copyright: 2015, Kovid Goyal <kovid at kovidgoyal.net>
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import builtins
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import os
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import sys
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from importlib import import_module
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from importlib.util import spec_from_file_location
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from importlib.machinery import EXTENSION_SUFFIXES
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import _sitebuiltins
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pyd_items = None
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extension_suffixes = sorted(EXTENSION_SUFFIXES, key=len, reverse=True)
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def remove_extension_suffix(name):
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for q in extension_suffixes:
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if name.endswith(q):
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return name[:-len(q)]
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class PydImporter:
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def find_spec(self, fullname, path, target=None):
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global pyd_items
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if pyd_items is None:
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pyd_items = {}
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dlls_dir = os.path.join(sys.app_dir, 'app', 'bin')
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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('.pyd'):
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pyd_items[remove_extension_suffix(lx)] = os.path.abspath(os.path.join(dlls_dir, x))
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q = fullname.lower()
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path = pyd_items.get(q)
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if path is not None:
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return spec_from_file_location(fullname, path)
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def invalidate_caches(self):
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global pyd_items
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pyd_items = None
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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_module(mod)
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return getattr(pmod, func)()
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def set_helper():
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builtins.help = _sitebuiltins._Helper()
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def set_quit():
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eof = 'Ctrl-Z plus Return'
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builtins.quit = _sitebuiltins.Quitter('quit', eof)
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builtins.exit = _sitebuiltins.Quitter('exit', eof)
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def main():
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sys.meta_path.insert(0, PydImporter())
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os.add_dll_directory(os.path.abspath(os.path.join(sys.app_dir, 'app', 'bin')))
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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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set_helper()
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set_quit()
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return run_entry_point()
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if __name__ == '__main__':
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try:
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main()
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except Exception:
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if sys.gui_app and sys.excepthook == sys.__excepthook__:
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import traceback
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import calibre_os_module
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calibre_os_module.gui_error_message(
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f"Unhandled exception running {sys.calibre_basename}",
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traceback.format_exc())
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raise
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