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from bzrlib import symbol_versioning
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# Cross platform wall-clock time functionality with decent resolution.
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# On Linux ``time.clock`` returns only CPU time. On Windows, ``time.time()``
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# only has a resolution of ~15ms. Note that ``time.clock()`` is not
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# synchronized with ``time.time()``, this is only meant to be used to find
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# delta times by subtracting from another call to this function.
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timer_func = time.time
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if sys.platform == 'win32':
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timer_func = time.clock
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# On win32, O_BINARY is used to indicate the file should
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# be opened in binary mode, rather than text mode.
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# On other platforms, O_BINARY doesn't exist, because
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:param old: The old path, to rename from
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:param new: The new path, to rename to
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:param rename_func: The potentially non-atomic rename function
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:param unlink_func: A way to delete the target file if the full rename succeeds
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:param unlink_func: A way to delete the target file if the full rename
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# sftp rename doesn't allow overwriting, so play tricks:
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base = os.path.basename(new)
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dirname = os.path.dirname(new)
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tmp_name = u'tmp.%s.%.9f.%d.%s' % (base, time.time(), os.getpid(), rand_chars(10))
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# callers use different encodings for the paths so the following MUST
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# respect that. We rely on python upcasting to unicode if new is unicode
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# and keeping a str if not.
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tmp_name = 'tmp.%s.%.9f.%d.%s' % (base, time.time(),
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os.getpid(), rand_chars(10))
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tmp_name = pathjoin(dirname, tmp_name)
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# Rename the file out of the way, but keep track if it didn't exist
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date_str = time.strftime(date_fmt, tt)
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return date_str + offset_str
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# Cache of formatted offset strings
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def format_date_with_offset_in_original_timezone(t, offset=0,
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_cache=_offset_cache):
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"""Return a formatted date string in the original timezone.
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This routine may be faster then format_date.
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:param t: Seconds since the epoch.
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:param offset: Timezone offset in seconds east of utc.
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tt = time.gmtime(t + offset)
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date_fmt = _default_format_by_weekday_num[tt[6]]
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date_str = time.strftime(date_fmt, tt)
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offset_str = _cache.get(offset, None)
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if offset_str is None:
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offset_str = ' %+03d%02d' % (offset / 3600, (offset / 60) % 60)
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_cache[offset] = offset_str
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return date_str + offset_str
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def format_local_date(t, offset=0, timezone='original', date_fmt=None,
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show_offset=True):
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"""Return an unicode date string formatted according to the current locale.
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normalized_filename = _inaccessible_normalized_filename
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default_terminal_width = 80
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"""The default terminal width for ttys.
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This is defined so that higher levels can share a common fallback value when
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terminal_width() returns None.
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def terminal_width():
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"""Return estimated terminal width."""
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if sys.platform == 'win32':
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return win32utils.get_console_size()[0]
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"""Return terminal width.
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None is returned if the width can't established precisely.
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- if BZR_COLUMNS is set, returns its value
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- if there is no controlling terminal, returns None
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- if COLUMNS is set, returns its value,
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From there, we need to query the OS to get the size of the controlling
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- get termios.TIOCGWINSZ
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- if an error occurs or a negative value is obtained, returns None
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- win32utils.get_console_size() decides,
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- returns None on error (provided default value)
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# If BZR_COLUMNS is set, take it, user is always right
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return int(os.environ['BZR_COLUMNS'])
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except (KeyError, ValueError):
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isatty = getattr(sys.stdout, 'isatty', None)
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if isatty is None or not isatty():
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# Don't guess, setting BZR_COLUMNS is the recommended way to override.
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# If COLUMNS is set, take it, the terminal knows better (even inside a
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# given terminal, the application can decide to set COLUMNS to a lower
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# value (splitted screen) or a bigger value (scroll bars))
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return int(os.environ['COLUMNS'])
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except (KeyError, ValueError):
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width, height = _terminal_size(None, None)
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# Consider invalid values as meaning no width
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def _win32_terminal_size(width, height):
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width, height = win32utils.get_console_size(defaultx=width, defaulty=height)
1407
return width, height
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def _ioctl_terminal_size(width, height):
1303
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import struct, fcntl, termios
1304
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s = struct.pack('HHHH', 0, 0, 0, 0)
1305
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x = fcntl.ioctl(1, termios.TIOCGWINSZ, s)
1306
width = struct.unpack('HHHH', x)[1]
1415
height, width = struct.unpack('HHHH', x)[0:2]
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except (IOError, AttributeError):
1311
width = int(os.environ['COLUMNS'])
1418
return width, height
1420
_terminal_size = None
1421
"""Returns the terminal size as (width, height).
1423
:param width: Default value for width.
1424
:param height: Default value for height.
1426
This is defined specifically for each OS and query the size of the controlling
1427
terminal. If any error occurs, the provided default values should be returned.
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if sys.platform == 'win32':
1430
_terminal_size = _win32_terminal_size
1432
_terminal_size = _ioctl_terminal_size
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def _terminal_size_changed(signum, frame):
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"""Set COLUMNS upon receiving a SIGnal for WINdow size CHange."""
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width, height = _terminal_size(None, None)
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if width is not None:
1439
os.environ['COLUMNS'] = str(width)
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_registered_sigwinch = False
1444
def watch_sigwinch():
1445
"""Register for SIGWINCH, once and only once."""
1446
global _registered_sigwinch
1447
if not _registered_sigwinch:
1448
if sys.platform == 'win32':
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# Martin (gz) mentioned WINDOW_BUFFER_SIZE_RECORD from
1450
# ReadConsoleInput but I've no idea how to plug that in
1451
# the current design -- vila 20091216
1454
signal.signal(signal.SIGWINCH, _terminal_size_changed)
1455
_registered_sigwinch = True
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def supports_executable():
added
removed
bzrlib/osutils.py
