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# __init__.py - inotify-based status acceleration for Linux
#
# Copyright 2006, 2007, 2008 Bryan O'Sullivan <bos@serpentine.com>
# Copyright 2007, 2008 Brendan Cully <brendan@kublai.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''accelerate status report using Linux's inotify service'''
# todo: socket permissions
from mercurial.i18n import _
from mercurial import util
import server
from client import client, QueryFailed
testedwith = 'internal'
def serve(ui, repo, **opts):
'''start an inotify server for this repository'''
server.start(ui, repo.dirstate, repo.root, opts)
def debuginotify(ui, repo, **opts):
'''debugging information for inotify extension
Prints the list of directories being watched by the inotify server.
'''
cli = client(ui, repo)
response = cli.debugquery()
ui.write(_('directories being watched:\n'))
for path in response:
ui.write((' %s/\n') % path)
def reposetup(ui, repo):
if not util.safehasattr(repo, 'dirstate'):
return
class inotifydirstate(repo.dirstate.__class__):
# We'll set this to false after an unsuccessful attempt so that
# next calls of status() within the same instance don't try again
# to start an inotify server if it won't start.
_inotifyon = True
def status(self, match, subrepos, ignored, clean, unknown):
files = match.files()
if '.' in files:
files = []
if (self._inotifyon and not ignored and not subrepos and
not self._dirty):
cli = client(ui, repo)
try:
result = cli.statusquery(files, match, False,
clean, unknown)
except QueryFailed, instr:
ui.debug(str(instr))
# don't retry within the same hg instance
inotifydirstate._inotifyon = False
pass
else:
if ui.config('inotify', 'debug'):
r2 = super(inotifydirstate, self).status(
match, [], False, clean, unknown)
for c, a, b in zip('LMARDUIC', result, r2):
for f in a:
if f not in b:
ui.warn('*** inotify: %s +%s\n' % (c, f))
for f in b:
if f not in a:
ui.warn('*** inotify: %s -%s\n' % (c, f))
result = r2
return result
return super(inotifydirstate, self).status(
match, subrepos, ignored, clean, unknown)
repo.dirstate.__class__ = inotifydirstate
cmdtable = {
'debuginotify':
(debuginotify, [], ('hg debuginotify')),
'^inserve':
(serve,
[('d', 'daemon', None, _('run server in background')),
('', 'daemon-pipefds', '',
_('used internally by daemon mode'), _('NUM')),
('t', 'idle-timeout', '',
_('minutes to sit idle before exiting'), _('NUM')),
('', 'pid-file', '',
_('name of file to write process ID to'), _('FILE'))],
_('hg inserve [OPTION]...')),
}
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