mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-11-03 19:17:02 -05:00
89 lines
2.5 KiB
Python
89 lines
2.5 KiB
Python
#!/usr/bin/env python2
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# vim:fileencoding=utf-8
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# License: GPLv3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
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import sys
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import encodings # noqa
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import __builtin__
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import locale
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import os
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import codecs
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def set_default_encoding():
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try:
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locale.setlocale(locale.LC_ALL, '')
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except:
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print ('WARNING: Failed to set default libc locale, using en_US.UTF-8')
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locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
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try:
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enc = locale.getdefaultlocale()[1]
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except Exception:
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enc = None
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if not enc:
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enc = locale.nl_langinfo(locale.CODESET)
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if not enc or enc.lower() == 'ascii':
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enc = 'UTF-8'
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try:
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enc = codecs.lookup(enc).name
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except LookupError:
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enc = 'UTF-8'
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sys.setdefaultencoding(enc)
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del sys.setdefaultencoding
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class _Helper(object):
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"""Define the builtin 'help'.
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This is a wrapper around pydoc.help (with a twist).
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"""
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def __repr__(self):
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return "Type help() for interactive help, " \
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"or help(object) for help about object."
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def __call__(self, *args, **kwds):
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import pydoc
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return pydoc.help(*args, **kwds)
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def set_helper():
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__builtin__.help = _Helper()
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def setup_openssl_environment():
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# Workaround for Linux distros that have still failed to get their heads
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# out of their asses and implement a common location for SSL certificates.
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# It's not that hard people, there exists a wonderful tool called the symlink
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# See http://www.mobileread.com/forums/showthread.php?t=256095
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if b'SSL_CERT_FILE' not in os.environ and b'SSL_CERT_DIR' not in os.environ:
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if os.access('/etc/pki/tls/certs/ca-bundle.crt', os.R_OK):
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os.environ['SSL_CERT_FILE'] = '/etc/pki/tls/certs/ca-bundle.crt'
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elif os.path.isdir('/etc/ssl/certs'):
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os.environ['SSL_CERT_DIR'] = '/etc/ssl/certs'
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def main():
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try:
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sys.argv[0] = sys.calibre_basename
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dfv = os.environ.get('CALIBRE_DEVELOP_FROM', None)
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if dfv and os.path.exists(dfv):
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sys.path.insert(0, os.path.abspath(dfv))
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set_default_encoding()
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set_helper()
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setup_openssl_environment()
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mod = __import__(sys.calibre_module, fromlist=[1])
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func = getattr(mod, sys.calibre_function)
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return func()
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except SystemExit as err:
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if err.code is None:
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return 0
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if isinstance(err.code, int):
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return err.code
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print (err.code)
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return 1
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except:
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import traceback
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traceback.print_exc()
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return 1
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