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