25
25
from bzrlib.lazy_import import lazy_import
26
26
lazy_import(globals(), """
27
27
from datetime import datetime
29
from ntpath import (abspath as _nt_abspath,
31
normpath as _nt_normpath,
32
realpath as _nt_realpath,
33
splitdrive as _nt_splitdrive,
31
# We need to import both shutil and rmtree as we export the later on posix
32
# and need the former on windows
34
from shutil import rmtree
37
# We need to import both tempfile and mkdtemp as we export the later on posix
38
# and need the former on windows
40
from tempfile import mkdtemp
43
from tempfile import (
43
48
from bzrlib import (
290
303
running python.exe under cmd.exe return capital C:\\
291
304
running win32 python inside a cygwin shell returns lowercase c:\\
293
drive, path = ntpath.splitdrive(path)
306
drive, path = _nt_splitdrive(path)
294
307
return drive.upper() + path
297
310
def _win32_abspath(path):
298
# Real ntpath.abspath doesn't have a problem with a unicode cwd
299
return _win32_fixdrive(ntpath.abspath(unicode(path)).replace('\\', '/'))
311
# Real _nt_abspath doesn't have a problem with a unicode cwd
312
return _win32_fixdrive(_nt_abspath(unicode(path)).replace('\\', '/'))
302
315
def _win98_abspath(path):
313
326
# /path => C:/path
314
327
path = unicode(path)
315
328
# check for absolute path
316
drive = ntpath.splitdrive(path)[0]
329
drive = _nt_splitdrive(path)[0]
317
330
if drive == '' and path[:2] not in('//','\\\\'):
318
331
cwd = os.getcwdu()
319
332
# we cannot simply os.path.join cwd and path
320
333
# because os.path.join('C:','/path') produce '/path'
321
334
# and this is incorrect
322
335
if path[:1] in ('/','\\'):
323
cwd = ntpath.splitdrive(cwd)[0]
336
cwd = _nt_splitdrive(cwd)[0]
325
338
path = cwd + '\\' + path
326
return _win32_fixdrive(ntpath.normpath(path).replace('\\', '/'))
339
return _win32_fixdrive(_nt_normpath(path).replace('\\', '/'))
329
342
def _win32_realpath(path):
330
# Real ntpath.realpath doesn't have a problem with a unicode cwd
331
return _win32_fixdrive(ntpath.realpath(unicode(path)).replace('\\', '/'))
343
# Real _nt_realpath doesn't have a problem with a unicode cwd
344
return _win32_fixdrive(_nt_realpath(unicode(path)).replace('\\', '/'))
334
347
def _win32_pathjoin(*args):
335
return ntpath.join(*args).replace('\\', '/')
348
return _nt_join(*args).replace('\\', '/')
338
351
def _win32_normpath(path):
339
return _win32_fixdrive(ntpath.normpath(unicode(path)).replace('\\', '/'))
352
return _win32_fixdrive(_nt_normpath(unicode(path)).replace('\\', '/'))
342
355
def _win32_getcwd():
462
477
input_encoding = getattr(sys.stdin, 'encoding', None)
463
478
if not input_encoding:
464
479
output_encoding = get_user_encoding()
466
mutter('encoding stdout as osutils.get_user_encoding() %r',
480
mutter('encoding stdout as osutils.get_user_encoding() %r',
469
483
output_encoding = input_encoding
471
mutter('encoding stdout as sys.stdin encoding %r',
484
mutter('encoding stdout as sys.stdin encoding %r', output_encoding)
475
mutter('encoding stdout as sys.stdout encoding %r', output_encoding)
486
mutter('encoding stdout as sys.stdout encoding %r', output_encoding)
476
487
if output_encoding == 'cp0':
477
488
# invalid encoding (cp0 means 'no codepage' on Windows)
478
489
output_encoding = get_user_encoding()
480
mutter('cp0 is invalid encoding.'
490
mutter('cp0 is invalid encoding.'
481
491
' encoding stdout as osutils.get_user_encoding() %r',
1239
1250
# but for now, we haven't optimized...
1240
1251
return [canonical_relpath(base, p) for p in paths]
1243
def decode_filename(filename):
1244
"""Decode the filename using the filesystem encoding
1246
If it is unicode, it is returned.
1247
Otherwise it is decoded from the the filesystem's encoding. If decoding
1248
fails, a errors.BadFilenameEncoding exception is raised.
1250
if type(filename) is unicode:
1253
return filename.decode(_fs_enc)
1254
except UnicodeDecodeError:
1255
raise errors.BadFilenameEncoding(filename, _fs_enc)
1258
1253
def safe_unicode(unicode_or_utf8_string):
1259
1254
"""Coerce unicode_or_utf8_string into unicode.
1438
1427
- if BZR_COLUMNS is set, returns its value
1439
1428
- if there is no controlling terminal, returns None
1440
- query the OS, if the queried size has changed since the last query,
1442
1429
- if COLUMNS is set, returns its value,
1443
- if the OS has a value (even though it's never changed), return its value.
1445
1431
From there, we need to query the OS to get the size of the controlling
1448
On Unices we query the OS by:
1449
1435
- get termios.TIOCGWINSZ
1450
1436
- if an error occurs or a negative value is obtained, returns None
1452
On Windows we query the OS by:
1453
1440
- win32utils.get_console_size() decides,
1454
1441
- returns None on error (provided default value)
1456
# Note to implementors: if changing the rules for determining the width,
1457
# make sure you've considered the behaviour in these cases:
1458
# - M-x shell in emacs, where $COLUMNS is set and TIOCGWINSZ returns 0,0.
1459
# - bzr log | less, in bash, where $COLUMNS not set and TIOCGWINSZ returns
1461
# - (add more interesting cases here, if you find any)
1462
# Some programs implement "Use $COLUMNS (if set) until SIGWINCH occurs",
1463
# but we don't want to register a signal handler because it is impossible
1464
# to do so without risking EINTR errors in Python <= 2.6.5 (see
1465
# <http://bugs.python.org/issue8354>). Instead we check TIOCGWINSZ every
1466
# time so we can notice if the reported size has changed, which should have
1469
1444
# If BZR_COLUMNS is set, take it, user is always right
1470
# Except if they specified 0 in which case, impose no limit here
1472
width = int(os.environ['BZR_COLUMNS'])
1446
return int(os.environ['BZR_COLUMNS'])
1473
1447
except (KeyError, ValueError):
1475
if width is not None:
1481
1450
isatty = getattr(sys.stdout, 'isatty', None)
1482
if isatty is None or not isatty():
1451
if isatty is None or not isatty():
1483
1452
# Don't guess, setting BZR_COLUMNS is the recommended way to override.
1487
width, height = os_size = _terminal_size(None, None)
1488
global _first_terminal_size, _terminal_size_state
1489
if _terminal_size_state == 'no_data':
1490
_first_terminal_size = os_size
1491
_terminal_size_state = 'unchanged'
1492
elif (_terminal_size_state == 'unchanged' and
1493
_first_terminal_size != os_size):
1494
_terminal_size_state = 'changed'
1496
# If the OS claims to know how wide the terminal is, and this value has
1497
# ever changed, use that.
1498
if _terminal_size_state == 'changed':
1499
if width is not None and width > 0:
1502
# If COLUMNS is set, use it.
1455
# If COLUMNS is set, take it, the terminal knows better (even inside a
1456
# given terminal, the application can decide to set COLUMNS to a lower
1457
# value (splitted screen) or a bigger value (scroll bars))
1504
1459
return int(os.environ['COLUMNS'])
1505
1460
except (KeyError, ValueError):
1508
# Finally, use an unchanged size from the OS, if we have one.
1509
if _terminal_size_state == 'unchanged':
1510
if width is not None and width > 0:
1463
width, height = _terminal_size(None, None)
1465
# Consider invalid values as meaning no width
1513
# The width could not be determined.
1517
1471
def _win32_terminal_size(width, height):
1544
1498
_terminal_size = _ioctl_terminal_size
1501
def _terminal_size_changed(signum, frame):
1502
"""Set COLUMNS upon receiving a SIGnal for WINdow size CHange."""
1503
width, height = _terminal_size(None, None)
1504
if width is not None:
1505
os.environ['COLUMNS'] = str(width)
1508
_registered_sigwinch = False
1509
def watch_sigwinch():
1510
"""Register for SIGWINCH, once and only once.
1512
Do nothing if the signal module is not available.
1514
global _registered_sigwinch
1515
if not _registered_sigwinch:
1518
if getattr(signal, "SIGWINCH", None) is not None:
1519
set_signal_handler(signal.SIGWINCH, _terminal_size_changed)
1521
# python doesn't provide signal support, nothing we can do about it
1523
_registered_sigwinch = True
1547
1526
def supports_executable():
1548
1527
return sys.platform != "win32"
2087
2051
report_activity(sent, 'write')
2090
def connect_socket(address):
2091
# Slight variation of the socket.create_connection() function (provided by
2092
# python-2.6) that can fail if getaddrinfo returns an empty list. We also
2093
# provide it for previous python versions. Also, we don't use the timeout
2094
# parameter (provided by the python implementation) so we don't implement
2096
err = socket.error('getaddrinfo returns an empty list')
2097
host, port = address
2098
for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
2099
af, socktype, proto, canonname, sa = res
2102
sock = socket.socket(af, socktype, proto)
2106
except socket.error, err:
2107
# 'err' is now the most recent error
2108
if sock is not None:
2113
2054
def dereference_path(path):
2114
2055
"""Determine the real path to a file.
2249
2187
termios.tcsetattr(fd, termios.TCSADRAIN, settings)
2252
2191
if sys.platform == 'linux2':
2253
2192
def _local_concurrency():
2255
return os.sysconf('SC_NPROCESSORS_ONLN')
2256
except (ValueError, OSError, AttributeError):
2194
prefix = 'processor'
2195
for line in file('/proc/cpuinfo', 'rb'):
2196
if line.startswith(prefix):
2197
concurrency = int(line[line.find(':')+1:]) + 1
2258
2199
elif sys.platform == 'darwin':
2259
2200
def _local_concurrency():
2260
2201
return subprocess.Popen(['sysctl', '-n', 'hw.availcpu'],
2261
2202
stdout=subprocess.PIPE).communicate()[0]
2262
elif "bsd" in sys.platform:
2203
elif sys.platform[0:7] == 'freebsd':
2263
2204
def _local_concurrency():
2264
2205
return subprocess.Popen(['sysctl', '-n', 'hw.ncpu'],
2265
2206
stdout=subprocess.PIPE).communicate()[0]
2367
2302
return os.fdopen(os.open(filename, flags), mode, bufsize)
2369
2304
open_file = open
2372
def getuser_unicode():
2373
"""Return the username as unicode.
2376
user_encoding = get_user_encoding()
2377
username = getpass.getuser().decode(user_encoding)
2378
except UnicodeDecodeError:
2379
raise errors.BzrError("Can't decode username as %s." % \
2384
def available_backup_name(base, exists):
2385
"""Find a non-existing backup file name.
2387
This will *not* create anything, this only return a 'free' entry. This
2388
should be used for checking names in a directory below a locked
2389
tree/branch/repo to avoid race conditions. This is LBYL (Look Before You
2390
Leap) and generally discouraged.
2392
:param base: The base name.
2394
:param exists: A callable returning True if the path parameter exists.
2397
name = "%s.~%d~" % (base, counter)
2400
name = "%s.~%d~" % (base, counter)
2404
def set_fd_cloexec(fd):
2405
"""Set a Unix file descriptor's FD_CLOEXEC flag. Do nothing if platform
2406
support for this is not available.
2410
old = fcntl.fcntl(fd, fcntl.F_GETFD)
2411
fcntl.fcntl(fd, fcntl.F_SETFD, old | fcntl.FD_CLOEXEC)
2412
except (ImportError, AttributeError):
2413
# Either the fcntl module or specific constants are not present
2417
def find_executable_on_path(name):
2418
"""Finds an executable on the PATH.
2420
On Windows, this will try to append each extension in the PATHEXT
2421
environment variable to the name, if it cannot be found with the name
2424
:param name: The base name of the executable.
2425
:return: The path to the executable found or None.
2427
path = os.environ.get('PATH')
2430
path = path.split(os.pathsep)
2431
if sys.platform == 'win32':
2432
exts = os.environ.get('PATHEXT', '').split(os.pathsep)
2433
exts = [ext.lower() for ext in exts]
2434
base, ext = os.path.splitext(name)
2436
if ext.lower() not in exts:
2444
f = os.path.join(d, name) + ext
2445
if os.access(f, os.X_OK):