47
88
This previously used backslash quoting, but that works poorly on
49
90
# TODO: I'm not really sure this is the best format either.x
93
_QUOTE_RE = re.compile(r'([^a-zA-Z0-9.,:/\\_~-])')
50
95
if _QUOTE_RE.search(f):
51
96
return '"' + f + '"'
57
mode = os.lstat(f)[ST_MODE]
65
raise BzrError("can't handle file kind with mode %o of %r" % (mode, f))
101
_directory_kind = 'directory'
104
stat.S_IFDIR:_directory_kind,
105
stat.S_IFCHR:'chardev',
106
stat.S_IFBLK:'block',
109
stat.S_IFLNK:'symlink',
110
stat.S_IFSOCK:'socket',
114
def file_kind_from_stat_mode(stat_mode, _formats=_formats, _unknown='unknown'):
115
"""Generate a file kind from a stat mode. This is used in walkdirs.
117
Its performance is critical: Do not mutate without careful benchmarking.
120
return _formats[stat_mode & 0170000]
125
def file_kind(f, _lstat=os.lstat, _mapper=file_kind_from_stat_mode):
127
return _mapper(_lstat(f).st_mode)
129
if getattr(e, 'errno', None) == errno.ENOENT:
130
raise errors.NoSuchFile(f)
135
"""Return the current umask"""
136
# Assume that people aren't messing with the umask while running
137
# XXX: This is not thread safe, but there is no way to get the
138
# umask without setting it
68
144
def kind_marker(kind):
69
145
if kind == 'file':
71
elif kind == 'directory':
147
elif kind == _directory_kind:
73
149
elif kind == 'symlink':
76
raise BzrError('invalid file kind %r' % kind)
152
raise errors.BzrError('invalid file kind %r' % kind)
154
lexists = getattr(os.path, 'lexists', None)
158
if getattr(os, 'lstat') is not None:
164
if e.errno == errno.ENOENT:
167
raise errors.BzrError("lstat/stat of (%r): %r" % (f, e))
170
def fancy_rename(old, new, rename_func, unlink_func):
171
"""A fancy rename, when you don't have atomic rename.
173
:param old: The old path, to rename from
174
:param new: The new path, to rename to
175
:param rename_func: The potentially non-atomic rename function
176
:param unlink_func: A way to delete the target file if the full rename succeeds
179
# sftp rename doesn't allow overwriting, so play tricks:
181
base = os.path.basename(new)
182
dirname = os.path.dirname(new)
183
tmp_name = u'tmp.%s.%.9f.%d.%s' % (base, time.time(), os.getpid(), rand_chars(10))
184
tmp_name = pathjoin(dirname, tmp_name)
186
# Rename the file out of the way, but keep track if it didn't exist
187
# We don't want to grab just any exception
188
# something like EACCES should prevent us from continuing
189
# The downside is that the rename_func has to throw an exception
190
# with an errno = ENOENT, or NoSuchFile
193
rename_func(new, tmp_name)
194
except (errors.NoSuchFile,), e:
197
# RBC 20060103 abstraction leakage: the paramiko SFTP clients rename
198
# function raises an IOError with errno is None when a rename fails.
199
# This then gets caught here.
200
if e.errno not in (None, errno.ENOENT, errno.ENOTDIR):
203
if (getattr(e, 'errno', None) is None
204
or e.errno not in (errno.ENOENT, errno.ENOTDIR)):
211
# This may throw an exception, in which case success will
213
rename_func(old, new)
217
# If the file used to exist, rename it back into place
218
# otherwise just delete it from the tmp location
220
unlink_func(tmp_name)
222
rename_func(tmp_name, new)
225
# In Python 2.4.2 and older, os.path.abspath and os.path.realpath
226
# choke on a Unicode string containing a relative path if
227
# os.getcwd() returns a non-sys.getdefaultencoding()-encoded
229
_fs_enc = sys.getfilesystemencoding() or 'utf-8'
230
def _posix_abspath(path):
231
# jam 20060426 rather than encoding to fsencoding
232
# copy posixpath.abspath, but use os.getcwdu instead
233
if not posixpath.isabs(path):
234
path = posixpath.join(getcwd(), path)
235
return posixpath.normpath(path)
238
def _posix_realpath(path):
239
return posixpath.realpath(path.encode(_fs_enc)).decode(_fs_enc)
242
def _win32_fixdrive(path):
243
"""Force drive letters to be consistent.
245
win32 is inconsistent whether it returns lower or upper case
246
and even if it was consistent the user might type the other
247
so we force it to uppercase
248
running python.exe under cmd.exe return capital C:\\
249
running win32 python inside a cygwin shell returns lowercase c:\\
251
drive, path = _nt_splitdrive(path)
252
return drive.upper() + path
255
def _win32_abspath(path):
256
# Real _nt_abspath doesn't have a problem with a unicode cwd
257
return _win32_fixdrive(_nt_abspath(unicode(path)).replace('\\', '/'))
260
def _win32_realpath(path):
261
# Real _nt_realpath doesn't have a problem with a unicode cwd
262
return _win32_fixdrive(_nt_realpath(unicode(path)).replace('\\', '/'))
265
def _win32_pathjoin(*args):
266
return _nt_join(*args).replace('\\', '/')
269
def _win32_normpath(path):
270
return _win32_fixdrive(_nt_normpath(unicode(path)).replace('\\', '/'))
274
return _win32_fixdrive(os.getcwdu().replace('\\', '/'))
277
def _win32_mkdtemp(*args, **kwargs):
278
return _win32_fixdrive(tempfile.mkdtemp(*args, **kwargs).replace('\\', '/'))
281
def _win32_rename(old, new):
282
"""We expect to be able to atomically replace 'new' with old.
284
On win32, if new exists, it must be moved out of the way first,
288
fancy_rename(old, new, rename_func=os.rename, unlink_func=os.unlink)
290
if e.errno in (errno.EPERM, errno.EACCES, errno.EBUSY, errno.EINVAL):
291
# If we try to rename a non-existant file onto cwd, we get
292
# EPERM or EACCES instead of ENOENT, this will raise ENOENT
293
# if the old path doesn't exist, sometimes we get EACCES
294
# On Linux, we seem to get EBUSY, on Mac we get EINVAL
300
return unicodedata.normalize('NFKC', os.getcwdu())
303
# Default is to just use the python builtins, but these can be rebound on
304
# particular platforms.
305
abspath = _posix_abspath
306
realpath = _posix_realpath
307
pathjoin = os.path.join
308
normpath = os.path.normpath
311
dirname = os.path.dirname
312
basename = os.path.basename
313
split = os.path.split
314
splitext = os.path.splitext
315
# These were already imported into local scope
316
# mkdtemp = tempfile.mkdtemp
317
# rmtree = shutil.rmtree
319
MIN_ABS_PATHLENGTH = 1
322
if sys.platform == 'win32':
323
abspath = _win32_abspath
324
realpath = _win32_realpath
325
pathjoin = _win32_pathjoin
326
normpath = _win32_normpath
327
getcwd = _win32_getcwd
328
mkdtemp = _win32_mkdtemp
329
rename = _win32_rename
331
MIN_ABS_PATHLENGTH = 3
333
def _win32_delete_readonly(function, path, excinfo):
334
"""Error handler for shutil.rmtree function [for win32]
335
Helps to remove files and dirs marked as read-only.
337
exception = excinfo[1]
338
if function in (os.remove, os.rmdir) \
339
and isinstance(exception, OSError) \
340
and exception.errno == errno.EACCES:
346
def rmtree(path, ignore_errors=False, onerror=_win32_delete_readonly):
347
"""Replacer for shutil.rmtree: could remove readonly dirs/files"""
348
return shutil.rmtree(path, ignore_errors, onerror)
349
elif sys.platform == 'darwin':
353
def get_terminal_encoding():
354
"""Find the best encoding for printing to the screen.
356
This attempts to check both sys.stdout and sys.stdin to see
357
what encoding they are in, and if that fails it falls back to
358
bzrlib.user_encoding.
359
The problem is that on Windows, locale.getpreferredencoding()
360
is not the same encoding as that used by the console:
361
http://mail.python.org/pipermail/python-list/2003-May/162357.html
363
On my standard US Windows XP, the preferred encoding is
364
cp1252, but the console is cp437
366
output_encoding = getattr(sys.stdout, 'encoding', None)
367
if not output_encoding:
368
input_encoding = getattr(sys.stdin, 'encoding', None)
369
if not input_encoding:
370
output_encoding = bzrlib.user_encoding
371
mutter('encoding stdout as bzrlib.user_encoding %r', output_encoding)
373
output_encoding = input_encoding
374
mutter('encoding stdout as sys.stdin encoding %r', output_encoding)
376
mutter('encoding stdout as sys.stdout encoding %r', output_encoding)
377
if output_encoding == 'cp0':
378
# invalid encoding (cp0 means 'no codepage' on Windows)
379
output_encoding = bzrlib.user_encoding
380
mutter('cp0 is invalid encoding.'
381
' encoding stdout as bzrlib.user_encoding %r', output_encoding)
382
return output_encoding
385
def normalizepath(f):
386
if getattr(os.path, 'realpath', None) is not None:
390
[p,e] = os.path.split(f)
391
if e == "" or e == "." or e == "..":
394
return pathjoin(F(p), e)
80
397
def backup_file(fn):
360
574
tt = time.gmtime(t)
362
576
elif timezone == 'original':
365
579
tt = time.gmtime(t + offset)
366
580
elif timezone == 'local':
367
581
tt = time.localtime(t)
368
582
offset = local_time_offset(t)
370
raise BzrError("unsupported timezone format %r" % timezone,
371
['options are "utc", "original", "local"'])
373
return (time.strftime("%a %Y-%m-%d %H:%M:%S", tt)
374
+ ' %+03d%02d' % (offset / 3600, (offset / 60) % 60))
584
raise errors.BzrError("unsupported timezone format %r" % timezone,
585
['options are "utc", "original", "local"'])
587
date_fmt = "%a %Y-%m-%d %H:%M:%S"
589
offset_str = ' %+03d%02d' % (offset / 3600, (offset / 60) % 60)
592
return (time.strftime(date_fmt, tt) + offset_str)
377
595
def compact_date(when):
378
596
return time.strftime('%Y%m%d%H%M%S', time.gmtime(when))
599
def format_delta(delta):
600
"""Get a nice looking string for a time delta.
602
:param delta: The time difference in seconds, can be positive or negative.
603
positive indicates time in the past, negative indicates time in the
604
future. (usually time.time() - stored_time)
605
:return: String formatted to show approximate resolution
611
direction = 'in the future'
615
if seconds < 90: # print seconds up to 90 seconds
617
return '%d second %s' % (seconds, direction,)
619
return '%d seconds %s' % (seconds, direction)
621
minutes = int(seconds / 60)
622
seconds -= 60 * minutes
627
if minutes < 90: # print minutes, seconds up to 90 minutes
629
return '%d minute, %d second%s %s' % (
630
minutes, seconds, plural_seconds, direction)
632
return '%d minutes, %d second%s %s' % (
633
minutes, seconds, plural_seconds, direction)
635
hours = int(minutes / 60)
636
minutes -= 60 * hours
643
return '%d hour, %d minute%s %s' % (hours, minutes,
644
plural_minutes, direction)
645
return '%d hours, %d minute%s %s' % (hours, minutes,
646
plural_minutes, direction)
383
649
"""Return size of given open file."""
384
650
return os.fstat(f.fileno())[ST_SIZE]
387
if hasattr(os, 'urandom'): # python 2.4 and later
653
# Define rand_bytes based on platform.
655
# Python 2.4 and later have os.urandom,
656
# but it doesn't work on some arches
388
658
rand_bytes = os.urandom
389
elif sys.platform == 'linux2':
390
rand_bytes = file('/dev/urandom', 'rb').read
392
# not well seeded, but better than nothing
397
s += chr(random.randint(0, 255))
659
except (NotImplementedError, AttributeError):
660
# If python doesn't have os.urandom, or it doesn't work,
661
# then try to first pull random data from /dev/urandom
663
rand_bytes = file('/dev/urandom', 'rb').read
664
# Otherwise, use this hack as a last resort
665
except (IOError, OSError):
666
# not well seeded, but better than nothing
671
s += chr(random.randint(0, 255))
676
ALNUM = '0123456789abcdefghijklmnopqrstuvwxyz'
678
"""Return a random string of num alphanumeric characters
680
The result only contains lowercase chars because it may be used on
681
case-insensitive filesystems.
684
for raw_byte in rand_bytes(num):
685
s += ALNUM[ord(raw_byte) % 36]
402
689
## TODO: We could later have path objects that remember their list
403
690
## decomposition (might be too tricksy though.)
405
692
def splitpath(p):
406
"""Turn string into list of parts.
412
>>> splitpath('a/./b')
414
>>> splitpath('a/.b')
416
>>> splitpath('a/../b')
417
Traceback (most recent call last):
419
BzrError: sorry, '..' not allowed in path
421
assert isinstance(p, types.StringTypes)
693
"""Turn string into list of parts."""
694
assert isinstance(p, basestring)
423
696
# split on either delimiter because people might use either on
438
711
assert isinstance(p, list)
440
if (f == '..') or (f == None) or (f == ''):
441
raise BzrError("sorry, %r not allowed in path" % f)
442
return os.path.join(*p)
713
if (f == '..') or (f is None) or (f == ''):
714
raise errors.BzrError("sorry, %r not allowed in path" % f)
718
@deprecated_function(zero_nine)
445
719
def appendpath(p1, p2):
449
return os.path.join(p1, p2)
723
return pathjoin(p1, p2)
452
def extern_command(cmd, ignore_errors = False):
453
mutter('external command: %s' % `cmd`)
455
if not ignore_errors:
456
raise BzrError('command failed')
459
def _read_config_value(name):
460
"""Read a config value from the file ~/.bzr.conf/<name>
461
Return None if the file does not exist"""
463
f = file(os.path.join(config_dir(), name), "r")
464
return f.read().decode(bzrlib.user_encoding).rstrip("\r\n")
466
if e.errno == errno.ENOENT:
472
"""Return a sequence of possible editor binaries for the current platform"""
473
e = _read_config_value("editor")
727
"""Split s into lines, but without removing the newline characters."""
728
lines = s.split('\n')
729
result = [line + '\n' for line in lines[:-1]]
731
result.append(lines[-1])
735
def hardlinks_good():
736
return sys.platform not in ('win32', 'cygwin', 'darwin')
739
def link_or_copy(src, dest):
740
"""Hardlink a file, or copy it if it can't be hardlinked."""
741
if not hardlinks_good():
742
shutil.copyfile(src, dest)
746
except (OSError, IOError), e:
747
if e.errno != errno.EXDEV:
749
shutil.copyfile(src, dest)
751
def delete_any(full_path):
752
"""Delete a file or directory."""
756
# We may be renaming a dangling inventory id
757
if e.errno not in (errno.EISDIR, errno.EACCES, errno.EPERM):
763
if getattr(os, 'symlink', None) is not None:
477
if os.name == "windows":
479
elif os.name == "posix":
481
yield os.environ["EDITOR"]
486
def _run_editor(filename):
487
"""Try to execute an editor to edit the commit message. Returns True on success,
489
for e in _get_editor():
490
x = os.spawnvp(os.P_WAIT, e, (e, filename))
769
def contains_whitespace(s):
770
"""True if there are any whitespace characters in s."""
771
for ch in string.whitespace:
778
def contains_linebreaks(s):
779
"""True if there is any vertical whitespace in s."""
787
def relpath(base, path):
788
"""Return path relative to base, or raise exception.
790
The path may be either an absolute path or a path relative to the
791
current working directory.
793
os.path.commonprefix (python2.4) has a bad bug that it works just
794
on string prefixes, assuming that '/u' is a prefix of '/u2'. This
798
assert len(base) >= MIN_ABS_PATHLENGTH, ('Length of base must be equal or'
799
' exceed the platform minimum length (which is %d)' %
806
while len(head) >= len(base):
497
raise BzrError("Could not start any editor. Please specify $EDITOR or use ~/.bzr.conf/editor")
501
def get_text_message(infotext, ignoreline = "default"):
504
if ignoreline == "default":
505
ignoreline = "-- This line and the following will be ignored --"
508
tmp_fileno, msgfilename = tempfile.mkstemp()
509
msgfile = os.close(tmp_fileno)
510
if infotext is not None and infotext != "":
512
msgfile = file(msgfilename, "w")
513
msgfile.write("\n\n%s\n\n%s" % (ignoreline, infotext))
518
if not _run_editor(msgfilename):
523
lastline, nlines = 0, 0
524
for line in file(msgfilename, "r"):
525
stripped_line = line.strip()
526
# strip empty line before the log message starts
528
if stripped_line != "":
532
# check for the ignore line only if there
533
# is additional information at the end
534
if hasinfo and stripped_line == ignoreline:
537
# keep track of the last line that had some content
538
if stripped_line != "":
544
# delete empty lines at the end
546
# add a newline at the end, if needed
547
if not msg[-1].endswith("\n"):
548
return "%s%s" % ("".join(msg), "\n")
552
# delete the msg file in any case
553
try: os.unlink(msgfilename)
809
head, tail = os.path.split(head)
813
raise errors.PathNotChild(rp, base)
821
def safe_unicode(unicode_or_utf8_string):
822
"""Coerce unicode_or_utf8_string into unicode.
824
If it is unicode, it is returned.
825
Otherwise it is decoded from utf-8. If a decoding error
826
occurs, it is wrapped as a If the decoding fails, the exception is wrapped
827
as a BzrBadParameter exception.
829
if isinstance(unicode_or_utf8_string, unicode):
830
return unicode_or_utf8_string
832
return unicode_or_utf8_string.decode('utf8')
833
except UnicodeDecodeError:
834
raise errors.BzrBadParameterNotUnicode(unicode_or_utf8_string)
837
_platform_normalizes_filenames = False
838
if sys.platform == 'darwin':
839
_platform_normalizes_filenames = True
842
def normalizes_filenames():
843
"""Return True if this platform normalizes unicode filenames.
845
Mac OSX does, Windows/Linux do not.
847
return _platform_normalizes_filenames
850
def _accessible_normalized_filename(path):
851
"""Get the unicode normalized path, and if you can access the file.
853
On platforms where the system normalizes filenames (Mac OSX),
854
you can access a file by any path which will normalize correctly.
855
On platforms where the system does not normalize filenames
856
(Windows, Linux), you have to access a file by its exact path.
858
Internally, bzr only supports NFC/NFKC normalization, since that is
859
the standard for XML documents.
861
So return the normalized path, and a flag indicating if the file
862
can be accessed by that path.
865
return unicodedata.normalize('NFKC', unicode(path)), True
868
def _inaccessible_normalized_filename(path):
869
__doc__ = _accessible_normalized_filename.__doc__
871
normalized = unicodedata.normalize('NFKC', unicode(path))
872
return normalized, normalized == path
875
if _platform_normalizes_filenames:
876
normalized_filename = _accessible_normalized_filename
878
normalized_filename = _inaccessible_normalized_filename
881
def terminal_width():
882
"""Return estimated terminal width."""
883
if sys.platform == 'win32':
884
import bzrlib.win32console
885
return bzrlib.win32console.get_console_size()[0]
888
import struct, fcntl, termios
889
s = struct.pack('HHHH', 0, 0, 0, 0)
890
x = fcntl.ioctl(1, termios.TIOCGWINSZ, s)
891
width = struct.unpack('HHHH', x)[1]
896
width = int(os.environ['COLUMNS'])
905
def supports_executable():
906
return sys.platform != "win32"
909
def set_or_unset_env(env_variable, value):
910
"""Modify the environment, setting or removing the env_variable.
912
:param env_variable: The environment variable in question
913
:param value: The value to set the environment to. If None, then
914
the variable will be removed.
915
:return: The original value of the environment variable.
917
orig_val = os.environ.get(env_variable)
919
if orig_val is not None:
920
del os.environ[env_variable]
922
if isinstance(value, unicode):
923
value = value.encode(bzrlib.user_encoding)
924
os.environ[env_variable] = value
928
_validWin32PathRE = re.compile(r'^([A-Za-z]:[/\\])?[^:<>*"?\|]*$')
931
def check_legal_path(path):
932
"""Check whether the supplied path is legal.
933
This is only required on Windows, so we don't test on other platforms
936
if sys.platform != "win32":
938
if _validWin32PathRE.match(path) is None:
939
raise errors.IllegalPath(path)
942
def walkdirs(top, prefix=""):
943
"""Yield data about all the directories in a tree.
945
This yields all the data about the contents of a directory at a time.
946
After each directory has been yielded, if the caller has mutated the list
947
to exclude some directories, they are then not descended into.
949
The data yielded is of the form:
950
((directory-relpath, directory-path-from-top),
951
[(relpath, basename, kind, lstat), ...]),
952
- directory-relpath is the relative path of the directory being returned
953
with respect to top. prefix is prepended to this.
954
- directory-path-from-root is the path including top for this directory.
955
It is suitable for use with os functions.
956
- relpath is the relative path within the subtree being walked.
957
- basename is the basename of the path
958
- kind is the kind of the file now. If unknown then the file is not
959
present within the tree - but it may be recorded as versioned. See
961
- lstat is the stat data *if* the file was statted.
962
- planned, not implemented:
963
path_from_tree_root is the path from the root of the tree.
965
:param prefix: Prefix the relpaths that are yielded with 'prefix'. This
966
allows one to walk a subtree but get paths that are relative to a tree
968
:return: an iterator over the dirs.
970
#TODO there is a bit of a smell where the results of the directory-
971
# summary in this, and the path from the root, may not agree
972
# depending on top and prefix - i.e. ./foo and foo as a pair leads to
973
# potentially confusing output. We should make this more robust - but
974
# not at a speed cost. RBC 20060731
977
_directory = _directory_kind
978
_listdir = os.listdir
979
pending = [(prefix, "", _directory, None, top)]
982
currentdir = pending.pop()
983
# 0 - relpath, 1- basename, 2- kind, 3- stat, 4-toppath
986
relroot = currentdir[0] + '/'
989
for name in sorted(_listdir(top)):
990
abspath = top + '/' + name
991
statvalue = lstat(abspath)
992
dirblock.append((relroot + name, name,
993
file_kind_from_stat_mode(statvalue.st_mode),
995
yield (currentdir[0], top), dirblock
996
# push the user specified dirs from dirblock
997
for dir in reversed(dirblock):
998
if dir[2] == _directory:
1002
def copy_tree(from_path, to_path, handlers={}):
1003
"""Copy all of the entries in from_path into to_path.
1005
:param from_path: The base directory to copy.
1006
:param to_path: The target directory. If it does not exist, it will
1008
:param handlers: A dictionary of functions, which takes a source and
1009
destinations for files, directories, etc.
1010
It is keyed on the file kind, such as 'directory', 'symlink', or 'file'
1011
'file', 'directory', and 'symlink' should always exist.
1012
If they are missing, they will be replaced with 'os.mkdir()',
1013
'os.readlink() + os.symlink()', and 'shutil.copy2()', respectively.
1015
# Now, just copy the existing cached tree to the new location
1016
# We use a cheap trick here.
1017
# Absolute paths are prefixed with the first parameter
1018
# relative paths are prefixed with the second.
1019
# So we can get both the source and target returned
1020
# without any extra work.
1022
def copy_dir(source, dest):
1025
def copy_link(source, dest):
1026
"""Copy the contents of a symlink"""
1027
link_to = os.readlink(source)
1028
os.symlink(link_to, dest)
1030
real_handlers = {'file':shutil.copy2,
1031
'symlink':copy_link,
1032
'directory':copy_dir,
1034
real_handlers.update(handlers)
1036
if not os.path.exists(to_path):
1037
real_handlers['directory'](from_path, to_path)
1039
for dir_info, entries in walkdirs(from_path, prefix=to_path):
1040
for relpath, name, kind, st, abspath in entries:
1041
real_handlers[kind](abspath, relpath)
1044
def path_prefix_key(path):
1045
"""Generate a prefix-order path key for path.
1047
This can be used to sort paths in the same way that walkdirs does.
1049
return (dirname(path) , path)
1052
def compare_paths_prefix_order(path_a, path_b):
1053
"""Compare path_a and path_b to generate the same order walkdirs uses."""
1054
key_a = path_prefix_key(path_a)
1055
key_b = path_prefix_key(path_b)
1056
return cmp(key_a, key_b)
1059
_cached_user_encoding = None
1062
def get_user_encoding():
1063
"""Find out what the preferred user encoding is.
1065
This is generally the encoding that is used for command line parameters
1066
and file contents. This may be different from the terminal encoding
1067
or the filesystem encoding.
1069
:return: A string defining the preferred user encoding
1071
global _cached_user_encoding
1072
if _cached_user_encoding is not None:
1073
return _cached_user_encoding
1075
if sys.platform == 'darwin':
1076
# work around egregious python 2.4 bug
1077
sys.platform = 'posix'
1081
sys.platform = 'darwin'
1086
_cached_user_encoding = locale.getpreferredencoding()
1087
except locale.Error, e:
1088
sys.stderr.write('bzr: warning: %s\n'
1089
' Could not determine what text encoding to use.\n'
1090
' This error usually means your Python interpreter\n'
1091
' doesn\'t support the locale set by $LANG (%s)\n'
1092
" Continuing with ascii encoding.\n"
1093
% (e, os.environ.get('LANG')))
1095
# Windows returns 'cp0' to indicate there is no code page. So we'll just
1096
# treat that as ASCII, and not support printing unicode characters to the
1098
if _cached_user_encoding in (None, 'cp0'):
1099
_cached_user_encoding = 'ascii'
1100
return _cached_user_encoding
1103
def recv_all(socket, bytes):
1104
"""Receive an exact number of bytes.
1106
Regular Socket.recv() may return less than the requested number of bytes,
1107
dependning on what's in the OS buffer. MSG_WAITALL is not available
1108
on all platforms, but this should work everywhere. This will return
1109
less than the requested amount if the remote end closes.
1111
This isn't optimized and is intended mostly for use in testing.
1114
while len(b) < bytes:
1115
new = socket.recv(bytes - len(b))
1121
def dereference_path(path):
1122
"""Determine the real path to a file.
1124
All parent elements are dereferenced. But the file itself is not
1126
:param path: The original path. May be absolute or relative.
1127
:return: the real path *to* the file
1129
parent, base = os.path.split(path)
1130
# The pathjoin for '.' is a workaround for Python bug #1213894.
1131
# (initial path components aren't dereferenced)
1132
return pathjoin(realpath(pathjoin('.', parent)), base)
added
removed
bzrlib/osutils.py
