329
def _posix_path_from_environ(key):
330
"""Get unicode path from `key` in environment or None if not present
332
Note that posix systems use arbitrary byte strings for filesystem objects,
333
so a path that raises BadFilenameEncoding here may still be accessible.
335
val = os.environ.get(key, None)
339
return val.decode(_fs_enc)
340
except UnicodeDecodeError:
341
# GZ 2011-12-12:Ideally want to include `key` in the exception message
342
raise errors.BadFilenameEncoding(val, _fs_enc)
345
def _posix_get_home_dir():
346
"""Get the home directory of the current user as a unicode path"""
347
path = posixpath.expanduser("~")
349
return path.decode(_fs_enc)
350
except UnicodeDecodeError:
351
raise errors.BadFilenameEncoding(path, _fs_enc)
354
def _posix_getuser_unicode():
355
"""Get username from environment or password database as unicode"""
356
name = getpass.getuser()
357
user_encoding = get_user_encoding()
359
return name.decode(user_encoding)
360
except UnicodeDecodeError:
361
raise errors.BzrError("Encoding of username %r is unsupported by %s "
362
"application locale." % (name, user_encoding))
321
365
def _win32_fixdrive(path):
322
366
"""Force drive letters to be consistent.
910
960
return os.fstat(f.fileno())[stat.ST_SIZE]
913
# Define rand_bytes based on platform.
915
# Python 2.4 and later have os.urandom,
916
# but it doesn't work on some arches
918
rand_bytes = os.urandom
919
except (NotImplementedError, AttributeError):
920
# If python doesn't have os.urandom, or it doesn't work,
921
# then try to first pull random data from /dev/urandom
963
# Alias os.urandom to support platforms (which?) without /dev/urandom and
964
# override if it doesn't work. Avoid checking on windows where there is
965
# significant initialisation cost that can be avoided for some bzr calls.
967
rand_bytes = os.urandom
969
if rand_bytes.__module__ != "nt":
923
rand_bytes = file('/dev/urandom', 'rb').read
924
# Otherwise, use this hack as a last resort
925
except (IOError, OSError):
972
except NotImplementedError:
926
973
# not well seeded, but better than nothing
927
974
def rand_bytes(n):
1947
1991
_cached_user_encoding = None
1950
def get_user_encoding(use_cache=True):
1994
def get_user_encoding(use_cache=DEPRECATED_PARAMETER):
1951
1995
"""Find out what the preferred user encoding is.
1953
1997
This is generally the encoding that is used for command line parameters
1954
1998
and file contents. This may be different from the terminal encoding
1955
1999
or the filesystem encoding.
1957
:param use_cache: Enable cache for detected encoding.
1958
(This parameter is turned on by default,
1959
and required only for selftesting)
1961
2001
:return: A string defining the preferred user encoding
1963
2003
global _cached_user_encoding
1964
if _cached_user_encoding is not None and use_cache:
2004
if deprecated_passed(use_cache):
2005
warn_deprecated("use_cache should only have been used for tests",
2006
DeprecationWarning, stacklevel=2)
2007
if _cached_user_encoding is not None:
1965
2008
return _cached_user_encoding
1967
if sys.platform == 'darwin':
1968
# python locale.getpreferredencoding() always return
1969
# 'mac-roman' on darwin. That's a lie.
1970
sys.platform = 'posix'
1972
if os.environ.get('LANG', None) is None:
1973
# If LANG is not set, we end up with 'ascii', which is bad
1974
# ('mac-roman' is more than ascii), so we set a default which
1975
# will give us UTF-8 (which appears to work in all cases on
1976
# OSX). Users are still free to override LANG of course, as
1977
# long as it give us something meaningful. This work-around
1978
# *may* not be needed with python 3k and/or OSX 10.5, but will
1979
# work with them too -- vila 20080908
1980
os.environ['LANG'] = 'en_US.UTF-8'
1983
sys.platform = 'darwin'
2010
if os.name == 'posix' and getattr(locale, 'CODESET', None) is not None:
2011
# Use the existing locale settings and call nl_langinfo directly
2012
# rather than going through getpreferredencoding. This avoids
2013
# <http://bugs.python.org/issue6202> on OSX Python 2.6 and the
2014
# possibility of the setlocale call throwing an error.
2015
user_encoding = locale.nl_langinfo(locale.CODESET)
2017
# GZ 2011-12-19: On windows could call GetACP directly instead.
2018
user_encoding = locale.getpreferredencoding(False)
1988
user_encoding = locale.getpreferredencoding()
1989
except locale.Error, e:
1990
sys.stderr.write('bzr: warning: %s\n'
1991
' Could not determine what text encoding to use.\n'
1992
' This error usually means your Python interpreter\n'
1993
' doesn\'t support the locale set by $LANG (%s)\n'
1994
" Continuing with ascii encoding.\n"
1995
% (e, os.environ.get('LANG')))
1996
user_encoding = 'ascii'
1998
# Windows returns 'cp0' to indicate there is no code page. So we'll just
1999
# treat that as ASCII, and not support printing unicode characters to the
2002
# For python scripts run under vim, we get '', so also treat that as ASCII
2003
if user_encoding in (None, 'cp0', ''):
2004
user_encoding = 'ascii'
2008
codecs.lookup(user_encoding)
2021
user_encoding = codecs.lookup(user_encoding).name
2023
if user_encoding not in ("", "cp0"):
2010
2024
sys.stderr.write('bzr: warning:'
2011
2025
' unknown encoding %s.'
2012
2026
' Continuing with ascii encoding.\n'
2013
2027
% user_encoding
2015
user_encoding = 'ascii'
2018
_cached_user_encoding = user_encoding
2029
user_encoding = 'ascii'
2031
# Get 'ascii' when setlocale has not been called or LANG=C or unset.
2032
if user_encoding == 'ascii':
2033
if sys.platform == 'darwin':
2034
# OSX is special-cased in Python to have a UTF-8 filesystem
2035
# encoding and previously had LANG set here if not present.
2036
user_encoding = 'utf-8'
2037
# GZ 2011-12-19: Maybe UTF-8 should be the default in this case
2038
# for some other posix platforms as well.
2040
_cached_user_encoding = user_encoding
2020
2041
return user_encoding
2212
2232
return file_kind_from_stat_mode(mode)
2213
2233
file_kind_from_stat_mode = file_kind_from_stat_mode_thunk
2216
def file_kind(f, _lstat=os.lstat):
2235
def file_stat(f, _lstat=os.lstat):
2218
return file_kind_from_stat_mode(_lstat(f).st_mode)
2219
2239
except OSError, e:
2220
2240
if getattr(e, 'errno', None) in (errno.ENOENT, errno.ENOTDIR):
2221
2241
raise errors.NoSuchFile(f)
2244
def file_kind(f, _lstat=os.lstat):
2245
stat_value = file_stat(f, _lstat)
2246
return file_kind_from_stat_mode(stat_value.st_mode)
2225
2248
def until_no_eintr(f, *a, **kw):
2226
2249
"""Run f(*a, **kw), retrying if an EINTR error occurs.
2406
2430
open_file = open
2409
def getuser_unicode():
2410
"""Return the username as unicode.
2413
user_encoding = get_user_encoding()
2414
username = getpass.getuser().decode(user_encoding)
2415
except UnicodeDecodeError:
2416
raise errors.BzrError("Can't decode username as %s." % \
2418
except ImportError, e:
2419
if sys.platform != 'win32':
2421
if str(e) != 'No module named pwd':
2423
# https://bugs.launchpad.net/bzr/+bug/660174
2424
# getpass.getuser() is unable to return username on Windows
2425
# if there is no USERNAME environment variable set.
2426
# That could be true if bzr is running as a service,
2427
# e.g. running `bzr serve` as a service on Windows.
2428
# We should not fail with traceback in this case.
2429
username = u'UNKNOWN'
2433
2433
def available_backup_name(base, exists):
2434
2434
"""Find a non-existing backup file name.