99
106
mod = os.lstat(filename).st_mode
100
107
if not stat.S_ISLNK(mod):
101
108
mod = mod & 0777555
102
os.chmod(filename, mod)
109
chmod_if_possible(filename, mod)
105
112
def make_writable(filename):
106
113
mod = os.lstat(filename).st_mode
107
114
if not stat.S_ISLNK(mod):
109
os.chmod(filename, mod)
116
chmod_if_possible(filename, mod)
119
def chmod_if_possible(filename, mode):
120
# Set file mode if that can be safely done.
121
# Sometimes even on unix the filesystem won't allow it - see
122
# https://bugs.launchpad.net/bzr/+bug/606537
124
# It is probably faster to just do the chmod, rather than
125
# doing a stat, and then trying to compare
126
os.chmod(filename, mode)
127
except (IOError, OSError),e:
128
# Permission/access denied seems to commonly happen on smbfs; there's
129
# probably no point warning about it.
130
# <https://bugs.launchpad.net/bzr/+bug/606537>
131
if getattr(e, 'errno') in (errno.EPERM, errno.EACCES):
132
trace.mutter("ignore error on chmod of %r: %r" % (
112
138
def minimum_path_selection(paths):
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))
304
365
def _win32_fixdrive(path):
305
366
"""Force drive letters to be consistent.
893
960
return os.fstat(f.fileno())[stat.ST_SIZE]
896
# Define rand_bytes based on platform.
898
# Python 2.4 and later have os.urandom,
899
# but it doesn't work on some arches
901
rand_bytes = os.urandom
902
except (NotImplementedError, AttributeError):
903
# If python doesn't have os.urandom, or it doesn't work,
904
# 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":
906
rand_bytes = file('/dev/urandom', 'rb').read
907
# Otherwise, use this hack as a last resort
908
except (IOError, OSError):
972
except NotImplementedError:
909
973
# not well seeded, but better than nothing
910
974
def rand_bytes(n):
1929
1991
_cached_user_encoding = None
1932
def get_user_encoding(use_cache=True):
1994
def get_user_encoding(use_cache=DEPRECATED_PARAMETER):
1933
1995
"""Find out what the preferred user encoding is.
1935
1997
This is generally the encoding that is used for command line parameters
1936
1998
and file contents. This may be different from the terminal encoding
1937
1999
or the filesystem encoding.
1939
:param use_cache: Enable cache for detected encoding.
1940
(This parameter is turned on by default,
1941
and required only for selftesting)
1943
2001
:return: A string defining the preferred user encoding
1945
2003
global _cached_user_encoding
1946
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:
1947
2008
return _cached_user_encoding
1949
if sys.platform == 'darwin':
1950
# python locale.getpreferredencoding() always return
1951
# 'mac-roman' on darwin. That's a lie.
1952
sys.platform = 'posix'
1954
if os.environ.get('LANG', None) is None:
1955
# If LANG is not set, we end up with 'ascii', which is bad
1956
# ('mac-roman' is more than ascii), so we set a default which
1957
# will give us UTF-8 (which appears to work in all cases on
1958
# OSX). Users are still free to override LANG of course, as
1959
# long as it give us something meaningful. This work-around
1960
# *may* not be needed with python 3k and/or OSX 10.5, but will
1961
# work with them too -- vila 20080908
1962
os.environ['LANG'] = 'en_US.UTF-8'
1965
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)
1970
user_encoding = locale.getpreferredencoding()
1971
except locale.Error, e:
1972
sys.stderr.write('bzr: warning: %s\n'
1973
' Could not determine what text encoding to use.\n'
1974
' This error usually means your Python interpreter\n'
1975
' doesn\'t support the locale set by $LANG (%s)\n'
1976
" Continuing with ascii encoding.\n"
1977
% (e, os.environ.get('LANG')))
1978
user_encoding = 'ascii'
1980
# Windows returns 'cp0' to indicate there is no code page. So we'll just
1981
# treat that as ASCII, and not support printing unicode characters to the
1984
# For python scripts run under vim, we get '', so also treat that as ASCII
1985
if user_encoding in (None, 'cp0', ''):
1986
user_encoding = 'ascii'
1990
codecs.lookup(user_encoding)
2021
user_encoding = codecs.lookup(user_encoding).name
2023
if user_encoding not in ("", "cp0"):
1992
2024
sys.stderr.write('bzr: warning:'
1993
2025
' unknown encoding %s.'
1994
2026
' Continuing with ascii encoding.\n'
1995
2027
% user_encoding
1997
user_encoding = 'ascii'
2000
_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
2002
2041
return user_encoding
2391
2430
open_file = open
2394
def getuser_unicode():
2395
"""Return the username as unicode.
2398
user_encoding = get_user_encoding()
2399
username = getpass.getuser().decode(user_encoding)
2400
except UnicodeDecodeError:
2401
raise errors.BzrError("Can't decode username as %s." % \
2403
except ImportError, e:
2404
if sys.platform != 'win32':
2406
if str(e) != 'No module named pwd':
2408
# https://bugs.launchpad.net/bzr/+bug/660174
2409
# getpass.getuser() is unable to return username on Windows
2410
# if there is no USERNAME environment variable set.
2411
# That could be true if bzr is running as a service,
2412
# e.g. running `bzr serve` as a service on Windows.
2413
# We should not fail with traceback in this case.
2414
username = u'UNKNOWN'
2418
2433
def available_backup_name(base, exists):
2419
2434
"""Find a non-existing backup file name.
2517
2532
fn = getattr(os, 'fdatasync', getattr(os, 'fsync', None))
2518
2533
if fn is not None:
2537
def ensure_empty_directory_exists(path, exception_class):
2538
"""Make sure a local directory exists and is empty.
2540
If it does not exist, it is created. If it exists and is not empty, an
2541
instance of exception_class is raised.
2546
if e.errno != errno.EEXIST:
2548
if os.listdir(path) != []:
2549
raise exception_class(path)
2552
def is_environment_error(evalue):
2553
"""True if exception instance is due to a process environment issue
2555
This includes OSError and IOError, but also other errors that come from
2556
the operating system or core libraries but are not subclasses of those.
2558
if isinstance(evalue, (EnvironmentError, select.error)):
2560
if sys.platform == "win32" and win32utils._is_pywintypes_error(evalue):
added
removed
bzrlib/osutils.py
