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comparison mercurial/commands.py @ 30958:23c801570449

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debugcommands: move 'debuglocks' in the new module
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Wed, 01 Feb 2017 17:42:49 +0100
parents a9aa67ba3f96
children 9e39d196cdf5
comparison
equal deleted inserted replaced
30957:a9aa67ba3f96 30958:23c801570449
9 9
10 import difflib 10 import difflib
11 import errno 11 import errno
12 import os 12 import os
13 import re 13 import re
14 import socket
15 import string 14 import string
16 import time 15 import time
17 16
18 from .i18n import _ 17 from .i18n import _
19 from .node import ( 18 from .node import (
1860 Returns 0 on success, 1 if errors are encountered. 1859 Returns 0 on success, 1 if errors are encountered.
1861 """ 1860 """
1862 with repo.wlock(False): 1861 with repo.wlock(False):
1863 return cmdutil.copy(ui, repo, pats, opts) 1862 return cmdutil.copy(ui, repo, pats, opts)
1864 1863
1865 @command('debuglocks',
1866 [('L', 'force-lock', None, _('free the store lock (DANGEROUS)')),
1867 ('W', 'force-wlock', None,
1868 _('free the working state lock (DANGEROUS)'))],
1869 _('[OPTION]...'))
1870 def debuglocks(ui, repo, **opts):
1871 """show or modify state of locks
1872
1873 By default, this command will show which locks are held. This
1874 includes the user and process holding the lock, the amount of time
1875 the lock has been held, and the machine name where the process is
1876 running if it's not local.
1877
1878 Locks protect the integrity of Mercurial's data, so should be
1879 treated with care. System crashes or other interruptions may cause
1880 locks to not be properly released, though Mercurial will usually
1881 detect and remove such stale locks automatically.
1882
1883 However, detecting stale locks may not always be possible (for
1884 instance, on a shared filesystem). Removing locks may also be
1885 blocked by filesystem permissions.
1886
1887 Returns 0 if no locks are held.
1888
1889 """
1890
1891 if opts.get('force_lock'):
1892 repo.svfs.unlink('lock')
1893 if opts.get('force_wlock'):
1894 repo.vfs.unlink('wlock')
1895 if opts.get('force_lock') or opts.get('force_lock'):
1896 return 0
1897
1898 now = time.time()
1899 held = 0
1900
1901 def report(vfs, name, method):
1902 # this causes stale locks to get reaped for more accurate reporting
1903 try:
1904 l = method(False)
1905 except error.LockHeld:
1906 l = None
1907
1908 if l:
1909 l.release()
1910 else:
1911 try:
1912 stat = vfs.lstat(name)
1913 age = now - stat.st_mtime
1914 user = util.username(stat.st_uid)
1915 locker = vfs.readlock(name)
1916 if ":" in locker:
1917 host, pid = locker.split(':')
1918 if host == socket.gethostname():
1919 locker = 'user %s, process %s' % (user, pid)
1920 else:
1921 locker = 'user %s, process %s, host %s' \
1922 % (user, pid, host)
1923 ui.write(("%-6s %s (%ds)\n") % (name + ":", locker, age))
1924 return 1
1925 except OSError as e:
1926 if e.errno != errno.ENOENT:
1927 raise
1928
1929 ui.write(("%-6s free\n") % (name + ":"))
1930 return 0
1931
1932 held += report(repo.svfs, "lock", repo.lock)
1933 held += report(repo.vfs, "wlock", repo.wlock)
1934
1935 return held
1936
1937 @command('debugobsolete', 1864 @command('debugobsolete',
1938 [('', 'flags', 0, _('markers flag')), 1865 [('', 'flags', 0, _('markers flag')),
1939 ('', 'record-parents', False, 1866 ('', 'record-parents', False,
1940 _('record parent information for the precursor')), 1867 _('record parent information for the precursor')),
1941 ('r', 'rev', [], _('display markers relevant to REV')), 1868 ('r', 'rev', [], _('display markers relevant to REV')),