##// END OF EJS Templates
fsmonitor: hook up state-enter, state-leave signals...
fsmonitor: hook up state-enter, state-leave signals Keeping the codebase in sync with upstream: Watchman 4.4 introduced an advanced settling feature that allows publishing tools to notify subscribing tools of the boundaries for important filesystem operations. https://facebook.github.io/watchman/docs/cmd/subscribe.html#advanced-settling has more information about how this feature works. This diff connects a signal that we're calling `hg.update` to the mercurial update function so that mercurial can indirectly notify tools (such as IDEs or build machinery) when it is changing the working copy. This will allow those tools to pause their normal actions as the files are changing and defer them until the end of the operation. In addition to sending the enter/leave signals for the state, we are able to publish useful metadata along the same channel. In this case we are passing the following pieces of information: 1. destination revision hash 2. An estimate of the distance between the current state and the target state 3. A success indicator. 4. Whether it is a partial update The distance is estimate may be useful to tools that wish to change their strategy after the update has complete. For example, a large update may be efficient to deal with by walking some internal state in the subscriber rather than feeding every individual file notification through its normal (small) delta mechanism. We estimate the distance by comparing the repository revision number. In some cases we cannot come up with a number so we report 0. This is ok; we're offering this for informational purposes only and don't guarantee its accuracy. The success indicator is only really meaningful when we generate the state-leave notification; it indicates the overall success of the update.

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record.py
148 lines | 4.8 KiB | text/x-python | PythonLexer
# record.py
#
# Copyright 2007 Bryan O'Sullivan <bos@serpentine.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''commands to interactively select changes for commit/qrefresh'''
from __future__ import absolute_import
from mercurial import (
cmdutil,
commands,
error,
extensions,
)
from mercurial.i18n import _
cmdtable = {}
command = cmdutil.command(cmdtable)
# Note for extension authors: ONLY specify testedwith = 'internal' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'internal'
@command("record",
# same options as commit + white space diff options
[c for c in commands.table['^commit|ci'][1][:]
if c[1] != "interactive"] + commands.diffwsopts,
_('hg record [OPTION]... [FILE]...'))
def record(ui, repo, *pats, **opts):
'''interactively select changes to commit
If a list of files is omitted, all changes reported by :hg:`status`
will be candidates for recording.
See :hg:`help dates` for a list of formats valid for -d/--date.
You will be prompted for whether to record changes to each
modified file, and for files with multiple changes, for each
change to use. For each query, the following responses are
possible::
y - record this change
n - skip this change
e - edit this change manually
s - skip remaining changes to this file
f - record remaining changes to this file
d - done, skip remaining changes and files
a - record all changes to all remaining files
q - quit, recording no changes
? - display help
This command is not available when committing a merge.'''
if not ui.interactive():
raise error.Abort(_('running non-interactively, use %s instead') %
'commit')
opts["interactive"] = True
backup = ui.backupconfig('experimental', 'crecord')
try:
ui.setconfig('experimental', 'crecord', False, 'record')
commands.commit(ui, repo, *pats, **opts)
finally:
ui.restoreconfig(backup)
def qrefresh(origfn, ui, repo, *pats, **opts):
if not opts['interactive']:
return origfn(ui, repo, *pats, **opts)
mq = extensions.find('mq')
def committomq(ui, repo, *pats, **opts):
# At this point the working copy contains only changes that
# were accepted. All other changes were reverted.
# We can't pass *pats here since qrefresh will undo all other
# changed files in the patch that aren't in pats.
mq.refresh(ui, repo, **opts)
# backup all changed files
cmdutil.dorecord(ui, repo, committomq, None, True,
cmdutil.recordfilter, *pats, **opts)
# This command registration is replaced during uisetup().
@command('qrecord',
[],
_('hg qrecord [OPTION]... PATCH [FILE]...'),
inferrepo=True)
def qrecord(ui, repo, patch, *pats, **opts):
'''interactively record a new patch
See :hg:`help qnew` & :hg:`help record` for more information and
usage.
'''
return _qrecord('qnew', ui, repo, patch, *pats, **opts)
def _qrecord(cmdsuggest, ui, repo, patch, *pats, **opts):
try:
mq = extensions.find('mq')
except KeyError:
raise error.Abort(_("'mq' extension not loaded"))
repo.mq.checkpatchname(patch)
def committomq(ui, repo, *pats, **opts):
opts['checkname'] = False
mq.new(ui, repo, patch, *pats, **opts)
backup = ui.backupconfig('experimental', 'crecord')
try:
ui.setconfig('experimental', 'crecord', False, 'record')
cmdutil.dorecord(ui, repo, committomq, cmdsuggest, False,
cmdutil.recordfilter, *pats, **opts)
finally:
ui.restoreconfig(backup)
def qnew(origfn, ui, repo, patch, *args, **opts):
if opts['interactive']:
return _qrecord(None, ui, repo, patch, *args, **opts)
return origfn(ui, repo, patch, *args, **opts)
def uisetup(ui):
try:
mq = extensions.find('mq')
except KeyError:
return
cmdtable["qrecord"] = \
(qrecord,
# same options as qnew, but copy them so we don't get
# -i/--interactive for qrecord and add white space diff options
mq.cmdtable['^qnew'][1][:] + commands.diffwsopts,
_('hg qrecord [OPTION]... PATCH [FILE]...'))
_wrapcmd('qnew', mq.cmdtable, qnew, _("interactively record a new patch"))
_wrapcmd('qrefresh', mq.cmdtable, qrefresh,
_("interactively select changes to refresh"))
def _wrapcmd(cmd, table, wrapfn, msg):
entry = extensions.wrapcommand(table, cmd, wrapfn)
entry[1].append(('i', 'interactive', None, msg))