68
77
# OR with 0 on those platforms
69
78
O_BINARY = getattr(os, 'O_BINARY', 0)
71
# On posix, use lstat instead of stat so that we can
72
# operate on broken symlinks. On Windows revert to stat.
73
lstat = getattr(os, 'lstat', os.stat)
81
def get_unicode_argv():
83
user_encoding = get_user_encoding()
84
return [a.decode(user_encoding) for a in sys.argv[1:]]
85
except UnicodeDecodeError:
86
raise errors.BzrError(("Parameter '%r' is unsupported by the current "
75
90
def make_readonly(filename):
76
91
"""Make a filename read-only."""
77
mod = lstat(filename).st_mode
92
mod = os.lstat(filename).st_mode
78
93
if not stat.S_ISLNK(mod):
79
94
mod = mod & 0777555
80
95
os.chmod(filename, mod)
83
98
def make_writable(filename):
84
mod = lstat(filename).st_mode
99
mod = os.lstat(filename).st_mode
85
100
if not stat.S_ISLNK(mod):
87
102
os.chmod(filename, mod)
105
def minimum_path_selection(paths):
106
"""Return the smallset subset of paths which are outside paths.
108
:param paths: A container (and hence not None) of paths.
109
:return: A set of paths sufficient to include everything in paths via
110
is_inside, drawn from the paths parameter.
116
return path.split('/')
117
sorted_paths = sorted(list(paths), key=sort_key)
119
search_paths = [sorted_paths[0]]
120
for path in sorted_paths[1:]:
121
if not is_inside(search_paths[-1], path):
122
# This path is unique, add it
123
search_paths.append(path)
125
return set(search_paths)
323
333
"""We expect to be able to atomically replace 'new' with old.
325
335
On win32, if new exists, it must be moved out of the way first,
329
339
fancy_rename(old, new, rename_func=os.rename, unlink_func=os.unlink)
330
340
except OSError, e:
331
341
if e.errno in (errno.EPERM, errno.EACCES, errno.EBUSY, errno.EINVAL):
332
# If we try to rename a non-existant file onto cwd, we get
333
# EPERM or EACCES instead of ENOENT, this will raise ENOENT
342
# If we try to rename a non-existant file onto cwd, we get
343
# EPERM or EACCES instead of ENOENT, this will raise ENOENT
334
344
# if the old path doesn't exist, sometimes we get EACCES
335
345
# On Linux, we seem to get EBUSY, on Mac we get EINVAL
539
def pumpfile(fromfile, tofile):
540
"""Copy contents of one file to another."""
543
b = fromfile.read(BUFSIZE)
532
def pumpfile(from_file, to_file, read_length=-1, buff_size=32768,
533
report_activity=None, direction='read'):
534
"""Copy contents of one file to another.
536
The read_length can either be -1 to read to end-of-file (EOF) or
537
it can specify the maximum number of bytes to read.
539
The buff_size represents the maximum size for each read operation
540
performed on from_file.
542
:param report_activity: Call this as bytes are read, see
543
Transport._report_activity
544
:param direction: Will be passed to report_activity
546
:return: The number of bytes copied.
550
# read specified number of bytes
552
while read_length > 0:
553
num_bytes_to_read = min(read_length, buff_size)
555
block = from_file.read(num_bytes_to_read)
559
if report_activity is not None:
560
report_activity(len(block), direction)
563
actual_bytes_read = len(block)
564
read_length -= actual_bytes_read
565
length += actual_bytes_read
569
block = from_file.read(buff_size)
573
if report_activity is not None:
574
report_activity(len(block), direction)
580
def pump_string_file(bytes, file_handle, segment_size=None):
581
"""Write bytes to file_handle in many smaller writes.
583
:param bytes: The string to write.
584
:param file_handle: The file to write to.
586
# Write data in chunks rather than all at once, because very large
587
# writes fail on some platforms (e.g. Windows with SMB mounted
590
segment_size = 5242880 # 5MB
591
segments = range(len(bytes) / segment_size + 1)
592
write = file_handle.write
593
for segment_index in segments:
594
segment = buffer(bytes, segment_index * segment_size, segment_size)
549
598
def file_iterator(input_file, readsize=32768):
619
697
:param timezone: How to display the time: 'utc', 'original' for the
620
698
timezone specified by offset, or 'local' for the process's current
622
:param show_offset: Whether to append the timezone.
623
:param date_fmt: strftime format.
700
:param date_fmt: strftime format.
701
:param show_offset: Whether to append the timezone.
703
(date_fmt, tt, offset_str) = \
704
_format_date(t, offset, timezone, date_fmt, show_offset)
705
date_fmt = date_fmt.replace('%a', weekdays[tt[6]])
706
date_str = time.strftime(date_fmt, tt)
707
return date_str + offset_str
709
def format_local_date(t, offset=0, timezone='original', date_fmt=None,
711
"""Return an unicode date string formatted according to the current locale.
713
:param t: Seconds since the epoch.
714
:param offset: Timezone offset in seconds east of utc.
715
:param timezone: How to display the time: 'utc', 'original' for the
716
timezone specified by offset, or 'local' for the process's current
718
:param date_fmt: strftime format.
719
:param show_offset: Whether to append the timezone.
721
(date_fmt, tt, offset_str) = \
722
_format_date(t, offset, timezone, date_fmt, show_offset)
723
date_str = time.strftime(date_fmt, tt)
724
if not isinstance(date_str, unicode):
725
date_str = date_str.decode(get_user_encoding(), 'replace')
726
return date_str + offset_str
728
def _format_date(t, offset, timezone, date_fmt, show_offset):
625
729
if timezone == 'utc':
626
730
tt = time.gmtime(t)
763
assert isinstance(p, (list, tuple))
765
866
if (f == '..') or (f is None) or (f == ''):
766
867
raise errors.BzrError("sorry, %r not allowed in path" % f)
767
868
return pathjoin(*p)
871
def parent_directories(filename):
872
"""Return the list of parent directories, deepest first.
874
For example, parent_directories("a/b/c") -> ["a/b", "a"].
877
parts = splitpath(dirname(filename))
879
parents.append(joinpath(parts))
885
from bzrlib._chunks_to_lines_pyx import chunks_to_lines
887
from bzrlib._chunks_to_lines_py import chunks_to_lines
770
890
def split_lines(s):
771
891
"""Split s into lines, but without removing the newline characters."""
892
# Trivially convert a fulltext into a 'chunked' representation, and let
893
# chunks_to_lines do the heavy lifting.
894
if isinstance(s, str):
895
# chunks_to_lines only supports 8-bit strings
896
return chunks_to_lines([s])
898
return _split_lines(s)
902
"""Split s into lines, but without removing the newline characters.
904
This supports Unicode or plain string objects.
772
906
lines = s.split('\n')
773
907
result = [line + '\n' for line in lines[:-1]]
793
927
shutil.copyfile(src, dest)
795
def delete_any(full_path):
796
"""Delete a file or directory."""
930
def delete_any(path):
931
"""Delete a file, symlink or directory.
933
Will delete even if readonly.
800
# We may be renaming a dangling inventory id
801
if e.errno not in (errno.EISDIR, errno.EACCES, errno.EPERM):
936
_delete_file_or_dir(path)
937
except (OSError, IOError), e:
938
if e.errno in (errno.EPERM, errno.EACCES):
939
# make writable and try again
942
except (OSError, IOError):
944
_delete_file_or_dir(path)
949
def _delete_file_or_dir(path):
950
# Look Before You Leap (LBYL) is appropriate here instead of Easier to Ask for
951
# Forgiveness than Permission (EAFP) because:
952
# - root can damage a solaris file system by using unlink,
953
# - unlink raises different exceptions on different OSes (linux: EISDIR, win32:
954
# EACCES, OSX: EPERM) when invoked on a directory.
955
if isdir(path): # Takes care of symlinks
806
961
def has_symlinks():
850
1031
avoids that problem.
853
assert len(base) >= MIN_ABS_PATHLENGTH, ('Length of base must be equal or'
854
' exceed the platform minimum length (which is %d)' %
1034
if len(base) < MIN_ABS_PATHLENGTH:
1035
# must have space for e.g. a drive letter
1036
raise ValueError('%r is too short to calculate a relative path'
857
1039
rp = abspath(path)
861
while len(head) >= len(base):
1044
if len(head) <= len(base) and head != base:
1045
raise errors.PathNotChild(rp, base)
862
1046
if head == base:
864
head, tail = os.path.split(head)
1048
head, tail = split(head)
868
raise errors.PathNotChild(rp, base)
1053
return pathjoin(*reversed(s))
1058
def _cicp_canonical_relpath(base, path):
1059
"""Return the canonical path relative to base.
1061
Like relpath, but on case-insensitive-case-preserving file-systems, this
1062
will return the relpath as stored on the file-system rather than in the
1063
case specified in the input string, for all existing portions of the path.
1065
This will cause O(N) behaviour if called for every path in a tree; if you
1066
have a number of paths to convert, you should use canonical_relpaths().
1068
# TODO: it should be possible to optimize this for Windows by using the
1069
# win32 API FindFiles function to look for the specified name - but using
1070
# os.listdir() still gives us the correct, platform agnostic semantics in
1073
rel = relpath(base, path)
1074
# '.' will have been turned into ''
1078
abs_base = abspath(base)
1080
_listdir = os.listdir
1082
# use an explicit iterator so we can easily consume the rest on early exit.
1083
bit_iter = iter(rel.split('/'))
1084
for bit in bit_iter:
1086
for look in _listdir(current):
1087
if lbit == look.lower():
1088
current = pathjoin(current, look)
1091
# got to the end, nothing matched, so we just return the
1092
# non-existing bits as they were specified (the filename may be
1093
# the target of a move, for example).
1094
current = pathjoin(current, bit, *list(bit_iter))
1096
return current[len(abs_base)+1:]
1098
# XXX - TODO - we need better detection/integration of case-insensitive
1099
# file-systems; Linux often sees FAT32 devices (or NFS-mounted OSX
1100
# filesystems), for example, so could probably benefit from the same basic
1101
# support there. For now though, only Windows and OSX get that support, and
1102
# they get it for *all* file-systems!
1103
if sys.platform in ('win32', 'darwin'):
1104
canonical_relpath = _cicp_canonical_relpath
1106
canonical_relpath = relpath
1108
def canonical_relpaths(base, paths):
1109
"""Create an iterable to canonicalize a sequence of relative paths.
1111
The intent is for this implementation to use a cache, vastly speeding
1112
up multiple transformations in the same directory.
1114
# but for now, we haven't optimized...
1115
return [canonical_relpath(base, p) for p in paths]
876
1117
def safe_unicode(unicode_or_utf8_string):
877
1118
"""Coerce unicode_or_utf8_string into unicode.
879
1120
If it is unicode, it is returned.
880
Otherwise it is decoded from utf-8. If a decoding error
881
occurs, it is wrapped as a If the decoding fails, the exception is wrapped
882
as a BzrBadParameter exception.
1121
Otherwise it is decoded from utf-8. If decoding fails, the exception is
1122
wrapped in a BzrBadParameterNotUnicode exception.
884
1124
if isinstance(unicode_or_utf8_string, unicode):
885
1125
return unicode_or_utf8_string
973
1213
On platforms where the system normalizes filenames (Mac OSX),
974
1214
you can access a file by any path which will normalize correctly.
975
On platforms where the system does not normalize filenames
1215
On platforms where the system does not normalize filenames
976
1216
(Windows, Linux), you have to access a file by its exact path.
978
Internally, bzr only supports NFC/NFKC normalization, since that is
1218
Internally, bzr only supports NFC normalization, since that is
979
1219
the standard for XML documents.
981
1221
So return the normalized path, and a flag indicating if the file
982
1222
can be accessed by that path.
985
return unicodedata.normalize('NFKC', unicode(path)), True
1225
return unicodedata.normalize('NFC', unicode(path)), True
988
1228
def _inaccessible_normalized_filename(path):
989
1229
__doc__ = _accessible_normalized_filename.__doc__
991
normalized = unicodedata.normalize('NFKC', unicode(path))
1231
normalized = unicodedata.normalize('NFC', unicode(path))
992
1232
return normalized, normalized == path
1071
1311
raise errors.IllegalPath(path)
1314
_WIN32_ERROR_DIRECTORY = 267 # Similar to errno.ENOTDIR
1316
def _is_error_enotdir(e):
1317
"""Check if this exception represents ENOTDIR.
1319
Unfortunately, python is very inconsistent about the exception
1320
here. The cases are:
1321
1) Linux, Mac OSX all versions seem to set errno == ENOTDIR
1322
2) Windows, Python2.4, uses errno == ERROR_DIRECTORY (267)
1323
which is the windows error code.
1324
3) Windows, Python2.5 uses errno == EINVAL and
1325
winerror == ERROR_DIRECTORY
1327
:param e: An Exception object (expected to be OSError with an errno
1328
attribute, but we should be able to cope with anything)
1329
:return: True if this represents an ENOTDIR error. False otherwise.
1331
en = getattr(e, 'errno', None)
1332
if (en == errno.ENOTDIR
1333
or (sys.platform == 'win32'
1334
and (en == _WIN32_ERROR_DIRECTORY
1335
or (en == errno.EINVAL
1336
and getattr(e, 'winerror', None) == _WIN32_ERROR_DIRECTORY)
1074
1342
def walkdirs(top, prefix=""):
1075
1343
"""Yield data about all the directories in a tree.
1077
1345
This yields all the data about the contents of a directory at a time.
1078
1346
After each directory has been yielded, if the caller has mutated the list
1079
1347
to exclude some directories, they are then not descended into.
1081
1349
The data yielded is of the form:
1082
1350
((directory-relpath, directory-path-from-top),
1083
1351
[(relpath, basename, kind, lstat, path-from-top), ...]),
1084
1352
- directory-relpath is the relative path of the directory being returned
1085
1353
with respect to top. prefix is prepended to this.
1086
- directory-path-from-root is the path including top for this directory.
1354
- directory-path-from-root is the path including top for this directory.
1087
1355
It is suitable for use with os functions.
1088
1356
- relpath is the relative path within the subtree being walked.
1089
1357
- basename is the basename of the path
1091
1359
present within the tree - but it may be recorded as versioned. See
1092
1360
versioned_kind.
1093
1361
- lstat is the stat data *if* the file was statted.
1094
- planned, not implemented:
1362
- planned, not implemented:
1095
1363
path_from_tree_root is the path from the root of the tree.
1097
:param prefix: Prefix the relpaths that are yielded with 'prefix'. This
1365
:param prefix: Prefix the relpaths that are yielded with 'prefix'. This
1098
1366
allows one to walk a subtree but get paths that are relative to a tree
1099
1367
rooted higher up.
1100
1368
:return: an iterator over the dirs.
1102
1370
#TODO there is a bit of a smell where the results of the directory-
1103
# summary in this, and the path from the root, may not agree
1371
# summary in this, and the path from the root, may not agree
1104
1372
# depending on top and prefix - i.e. ./foo and foo as a pair leads to
1105
1373
# potentially confusing output. We should make this more robust - but
1106
1374
# not at a speed cost. RBC 20060731
1107
1375
_lstat = os.lstat
1108
1376
_directory = _directory_kind
1109
1377
_listdir = os.listdir
1110
_kind_from_mode = _formats.get
1378
_kind_from_mode = file_kind_from_stat_mode
1111
1379
pending = [(safe_unicode(prefix), "", _directory, None, safe_unicode(top))]
1113
1381
# 0 - relpath, 1- basename, 2- kind, 3- stat, 4-toppath
1122
1390
append = dirblock.append
1123
for name in sorted(_listdir(top)):
1124
abspath = top_slash + name
1125
statvalue = _lstat(abspath)
1126
kind = _kind_from_mode(statvalue.st_mode & 0170000, 'unknown')
1127
append((relprefix + name, name, kind, statvalue, abspath))
1392
names = sorted(_listdir(top))
1394
if not _is_error_enotdir(e):
1398
abspath = top_slash + name
1399
statvalue = _lstat(abspath)
1400
kind = _kind_from_mode(statvalue.st_mode)
1401
append((relprefix + name, name, kind, statvalue, abspath))
1128
1402
yield (relroot, top), dirblock
1130
1404
# push the user specified dirs from dirblock
1131
1405
pending.extend(d for d in reversed(dirblock) if d[2] == _directory)
1408
class DirReader(object):
1409
"""An interface for reading directories."""
1411
def top_prefix_to_starting_dir(self, top, prefix=""):
1412
"""Converts top and prefix to a starting dir entry
1414
:param top: A utf8 path
1415
:param prefix: An optional utf8 path to prefix output relative paths
1417
:return: A tuple starting with prefix, and ending with the native
1420
raise NotImplementedError(self.top_prefix_to_starting_dir)
1422
def read_dir(self, prefix, top):
1423
"""Read a specific dir.
1425
:param prefix: A utf8 prefix to be preprended to the path basenames.
1426
:param top: A natively encoded path to read.
1427
:return: A list of the directories contents. Each item contains:
1428
(utf8_relpath, utf8_name, kind, lstatvalue, native_abspath)
1430
raise NotImplementedError(self.read_dir)
1433
_selected_dir_reader = None
1134
1436
def _walkdirs_utf8(top, prefix=""):
1135
1437
"""Yield data about all the directories in a tree.
1145
1447
path-from-top might be unicode or utf8, but it is the correct path to
1146
1448
pass to os functions to affect the file in question. (such as os.lstat)
1148
fs_encoding = _fs_enc.upper()
1149
if (sys.platform == 'win32' or
1150
fs_encoding not in ('UTF-8', 'US-ASCII', 'ANSI_X3.4-1968')): # ascii
1151
return _walkdirs_unicode_to_utf8(top, prefix=prefix)
1153
return _walkdirs_fs_utf8(top, prefix=prefix)
1156
def _walkdirs_fs_utf8(top, prefix=""):
1157
"""See _walkdirs_utf8.
1159
This sub-function is called when we know the filesystem is already in utf8
1160
encoding. So we don't need to transcode filenames.
1163
_directory = _directory_kind
1164
_listdir = os.listdir
1165
_kind_from_mode = _formats.get
1450
global _selected_dir_reader
1451
if _selected_dir_reader is None:
1452
fs_encoding = _fs_enc.upper()
1453
if sys.platform == "win32" and win32utils.winver == 'Windows NT':
1454
# Win98 doesn't have unicode apis like FindFirstFileW
1455
# TODO: We possibly could support Win98 by falling back to the
1456
# original FindFirstFile, and using TCHAR instead of WCHAR,
1457
# but that gets a bit tricky, and requires custom compiling
1460
from bzrlib._walkdirs_win32 import Win32ReadDir
1461
_selected_dir_reader = Win32ReadDir()
1464
elif fs_encoding in ('UTF-8', 'US-ASCII', 'ANSI_X3.4-1968'):
1465
# ANSI_X3.4-1968 is a form of ASCII
1467
from bzrlib._readdir_pyx import UTF8DirReader
1468
_selected_dir_reader = UTF8DirReader()
1472
if _selected_dir_reader is None:
1473
# Fallback to the python version
1474
_selected_dir_reader = UnicodeDirReader()
1167
1476
# 0 - relpath, 1- basename, 2- kind, 3- stat, 4-toppath
1168
1477
# But we don't actually uses 1-3 in pending, so set them to None
1169
pending = [(safe_utf8(prefix), None, None, None, safe_utf8(top))]
1478
pending = [[_selected_dir_reader.top_prefix_to_starting_dir(top, prefix)]]
1479
read_dir = _selected_dir_reader.read_dir
1480
_directory = _directory_kind
1171
relroot, _, _, _, top = pending.pop()
1173
relprefix = relroot + '/'
1176
top_slash = top + '/'
1179
append = dirblock.append
1180
for name in sorted(_listdir(top)):
1181
abspath = top_slash + name
1182
statvalue = _lstat(abspath)
1183
kind = _kind_from_mode(statvalue.st_mode & 0170000, 'unknown')
1184
append((relprefix + name, name, kind, statvalue, abspath))
1482
relroot, _, _, _, top = pending[-1].pop()
1485
dirblock = sorted(read_dir(relroot, top))
1185
1486
yield (relroot, top), dirblock
1187
1487
# push the user specified dirs from dirblock
1188
pending.extend(d for d in reversed(dirblock) if d[2] == _directory)
1191
def _walkdirs_unicode_to_utf8(top, prefix=""):
1192
"""See _walkdirs_utf8
1194
Because Win32 has a Unicode api, all of the 'path-from-top' entries will be
1196
This is currently the fallback code path when the filesystem encoding is
1197
not UTF-8. It may be better to implement an alternative so that we can
1198
safely handle paths that are not properly decodable in the current
1201
_utf8_encode = codecs.getencoder('utf8')
1203
_directory = _directory_kind
1204
_listdir = os.listdir
1205
_kind_from_mode = _formats.get
1207
pending = [(safe_utf8(prefix), None, None, None, safe_unicode(top))]
1209
relroot, _, _, _, top = pending.pop()
1211
relprefix = relroot + '/'
1488
next = [d for d in reversed(dirblock) if d[2] == _directory]
1490
pending.append(next)
1493
class UnicodeDirReader(DirReader):
1494
"""A dir reader for non-utf8 file systems, which transcodes."""
1496
__slots__ = ['_utf8_encode']
1499
self._utf8_encode = codecs.getencoder('utf8')
1501
def top_prefix_to_starting_dir(self, top, prefix=""):
1502
"""See DirReader.top_prefix_to_starting_dir."""
1503
return (safe_utf8(prefix), None, None, None, safe_unicode(top))
1505
def read_dir(self, prefix, top):
1506
"""Read a single directory from a non-utf8 file system.
1508
top, and the abspath element in the output are unicode, all other paths
1509
are utf8. Local disk IO is done via unicode calls to listdir etc.
1511
This is currently the fallback code path when the filesystem encoding is
1512
not UTF-8. It may be better to implement an alternative so that we can
1513
safely handle paths that are not properly decodable in the current
1516
See DirReader.read_dir for details.
1518
_utf8_encode = self._utf8_encode
1520
_listdir = os.listdir
1521
_kind_from_mode = file_kind_from_stat_mode
1524
relprefix = prefix + '/'
1214
1527
top_slash = top + u'/'
1217
1530
append = dirblock.append
1218
1531
for name in sorted(_listdir(top)):
1219
name_utf8 = _utf8_encode(name)[0]
1533
name_utf8 = _utf8_encode(name)[0]
1534
except UnicodeDecodeError:
1535
raise errors.BadFilenameEncoding(
1536
_utf8_encode(relprefix)[0] + name, _fs_enc)
1220
1537
abspath = top_slash + name
1221
1538
statvalue = _lstat(abspath)
1222
kind = _kind_from_mode(statvalue.st_mode & 0170000, 'unknown')
1539
kind = _kind_from_mode(statvalue.st_mode)
1223
1540
append((relprefix + name_utf8, name_utf8, kind, statvalue, abspath))
1224
yield (relroot, top), dirblock
1226
# push the user specified dirs from dirblock
1227
pending.extend(d for d in reversed(dirblock) if d[2] == _directory)
1230
1544
def copy_tree(from_path, to_path, handlers={}):
1231
1545
"""Copy all of the entries in from_path into to_path.
1233
:param from_path: The base directory to copy.
1547
:param from_path: The base directory to copy.
1234
1548
:param to_path: The target directory. If it does not exist, it will
1236
1550
:param handlers: A dictionary of functions, which takes a source and
1362
1702
while len(b) < bytes:
1363
new = socket.recv(bytes - len(b))
1703
new = until_no_eintr(socket.recv, bytes - len(b))
1710
def send_all(socket, bytes, report_activity=None):
1711
"""Send all bytes on a socket.
1713
Regular socket.sendall() can give socket error 10053 on Windows. This
1714
implementation sends no more than 64k at a time, which avoids this problem.
1716
:param report_activity: Call this as bytes are read, see
1717
Transport._report_activity
1720
for pos in xrange(0, len(bytes), chunk_size):
1721
block = bytes[pos:pos+chunk_size]
1722
if report_activity is not None:
1723
report_activity(len(block), 'write')
1724
until_no_eintr(socket.sendall, block)
1369
1727
def dereference_path(path):
1370
1728
"""Determine the real path to a file.
1383
1741
def supports_mapi():
1384
1742
"""Return True if we can use MAPI to launch a mail client."""
1385
1743
return sys.platform == "win32"
1746
def resource_string(package, resource_name):
1747
"""Load a resource from a package and return it as a string.
1749
Note: Only packages that start with bzrlib are currently supported.
1751
This is designed to be a lightweight implementation of resource
1752
loading in a way which is API compatible with the same API from
1754
http://peak.telecommunity.com/DevCenter/PkgResources#basic-resource-access.
1755
If and when pkg_resources becomes a standard library, this routine
1758
# Check package name is within bzrlib
1759
if package == "bzrlib":
1760
resource_relpath = resource_name
1761
elif package.startswith("bzrlib."):
1762
package = package[len("bzrlib."):].replace('.', os.sep)
1763
resource_relpath = pathjoin(package, resource_name)
1765
raise errors.BzrError('resource package %s not in bzrlib' % package)
1767
# Map the resource to a file and read its contents
1768
base = dirname(bzrlib.__file__)
1769
if getattr(sys, 'frozen', None): # bzr.exe
1770
base = abspath(pathjoin(base, '..', '..'))
1771
filename = pathjoin(base, resource_relpath)
1772
return open(filename, 'rU').read()
1775
def file_kind_from_stat_mode_thunk(mode):
1776
global file_kind_from_stat_mode
1777
if file_kind_from_stat_mode is file_kind_from_stat_mode_thunk:
1779
from bzrlib._readdir_pyx import UTF8DirReader
1780
file_kind_from_stat_mode = UTF8DirReader().kind_from_mode
1782
from bzrlib._readdir_py import (
1783
_kind_from_mode as file_kind_from_stat_mode
1785
return file_kind_from_stat_mode(mode)
1786
file_kind_from_stat_mode = file_kind_from_stat_mode_thunk
1789
def file_kind(f, _lstat=os.lstat):
1791
return file_kind_from_stat_mode(_lstat(f).st_mode)
1793
if getattr(e, 'errno', None) in (errno.ENOENT, errno.ENOTDIR):
1794
raise errors.NoSuchFile(f)
1798
def until_no_eintr(f, *a, **kw):
1799
"""Run f(*a, **kw), retrying if an EINTR error occurs."""
1800
# Borrowed from Twisted's twisted.python.util.untilConcludes function.
1804
except (IOError, OSError), e:
1805
if e.errno == errno.EINTR:
1809
def re_compile_checked(re_string, flags=0, where=""):
1810
"""Return a compiled re, or raise a sensible error.
1812
This should only be used when compiling user-supplied REs.
1814
:param re_string: Text form of regular expression.
1815
:param flags: eg re.IGNORECASE
1816
:param where: Message explaining to the user the context where
1817
it occurred, eg 'log search filter'.
1819
# from https://bugs.launchpad.net/bzr/+bug/251352
1821
re_obj = re.compile(re_string, flags)
1826
where = ' in ' + where
1827
# despite the name 'error' is a type
1828
raise errors.BzrCommandError('Invalid regular expression%s: %r: %s'
1829
% (where, re_string, e))
1832
if sys.platform == "win32":
1835
return msvcrt.getch()
1840
fd = sys.stdin.fileno()
1841
settings = termios.tcgetattr(fd)
1844
ch = sys.stdin.read(1)
1846
termios.tcsetattr(fd, termios.TCSADRAIN, settings)
1850
if sys.platform == 'linux2':
1851
def _local_concurrency():
1853
prefix = 'processor'
1854
for line in file('/proc/cpuinfo', 'rb'):
1855
if line.startswith(prefix):
1856
concurrency = int(line[line.find(':')+1:]) + 1
1858
elif sys.platform == 'darwin':
1859
def _local_concurrency():
1860
return subprocess.Popen(['sysctl', '-n', 'hw.availcpu'],
1861
stdout=subprocess.PIPE).communicate()[0]
1862
elif sys.platform[0:7] == 'freebsd':
1863
def _local_concurrency():
1864
return subprocess.Popen(['sysctl', '-n', 'hw.ncpu'],
1865
stdout=subprocess.PIPE).communicate()[0]
1866
elif sys.platform == 'sunos5':
1867
def _local_concurrency():
1868
return subprocess.Popen(['psrinfo', '-p',],
1869
stdout=subprocess.PIPE).communicate()[0]
1870
elif sys.platform == "win32":
1871
def _local_concurrency():
1872
# This appears to return the number of cores.
1873
return os.environ.get('NUMBER_OF_PROCESSORS')
1875
def _local_concurrency():
1880
_cached_local_concurrency = None
1882
def local_concurrency(use_cache=True):
1883
"""Return how many processes can be run concurrently.
1885
Rely on platform specific implementations and default to 1 (one) if
1886
anything goes wrong.
1888
global _cached_local_concurrency
1889
if _cached_local_concurrency is not None and use_cache:
1890
return _cached_local_concurrency
1893
concurrency = _local_concurrency()
1894
except (OSError, IOError):
1897
concurrency = int(concurrency)
1898
except (TypeError, ValueError):
1901
_cached_concurrency = concurrency
added
removed
bzrlib/osutils.py
