mercurial-scm/hg-stable: hgext/chgserver.py annotate

annotate hgext/chgserver.py @ 28276:b4ceadb2c439

chgserver: add utilities to calculate mtimehash mtimehash is designed to detect file changes. These files include: - single file extensions (__init__.py for complex extensions) - mercurial/__version__.py - python (sys.executable) mtimehash only uses stat to check files so it's fast but not 100% accurate. However it should be good enough for our use case. For chgserver, once mtimehash changes, the server is considered outdated immediately and should no longer provide service.

author	Jun Wu <quark@fb.com>
date	Fri, 26 Feb 2016 14:59:39 +0000
parents	3682e201cce6
children	cdc6319f6a7d

rev	line source
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	1 # chgserver.py - command server extension for cHg
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	2 #
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	3 # Copyright 2011 Yuya Nishihara <yuya@tcha.org>
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	4 #
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	5 # This software may be used and distributed according to the terms of the
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	6 # GNU General Public License version 2 or any later version.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	7
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	8 """command server extension for cHg (EXPERIMENTAL)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	9
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	10 'S' channel (read/write)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	11 propagate ui.system() request to client
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	12
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	13 'attachio' command
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	14 attach client's stdio passed by sendmsg()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	15
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	16 'chdir' command
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	17 change current directory
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	18
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	19 'getpager' command
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	20 checks if pager is enabled and which pager should be executed
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	21
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	22 'setenv' command
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	23 replace os.environ completely
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	24
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	25 'SIGHUP' signal
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	26 reload configuration files
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	27 """
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	28
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	29 from __future__ import absolute_import
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	30
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	31 import SocketServer
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	32 import errno
28276 b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	33 import inspect
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	34 import os
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	35 import re
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	36 import signal
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	37 import struct
28276 b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	38 import sys
28223 0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	39 import threading
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	40 import time
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	41 import traceback
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	42
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	43 from mercurial.i18n import _
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	44
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	45 from mercurial import (
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	46 cmdutil,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	47 commands,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	48 commandserver,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	49 dispatch,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	50 error,
28276 b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	51 extensions,
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	52 osutil,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	53 util,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	54 )
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	55
27793 8c9bbf5cd349 chgserver: mark as a built-in extension Yuya Nishihara <yuya@tcha.org> parents: 27792 diff changeset	56 # Note for extension authors: ONLY specify testedwith = 'internal' for
8c9bbf5cd349 chgserver: mark as a built-in extension Yuya Nishihara <yuya@tcha.org> parents: 27792 diff changeset	57 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
8c9bbf5cd349 chgserver: mark as a built-in extension Yuya Nishihara <yuya@tcha.org> parents: 27792 diff changeset	58 # be specifying the version(s) of Mercurial they are tested with, or
8c9bbf5cd349 chgserver: mark as a built-in extension Yuya Nishihara <yuya@tcha.org> parents: 27792 diff changeset	59 # leave the attribute unspecified.
8c9bbf5cd349 chgserver: mark as a built-in extension Yuya Nishihara <yuya@tcha.org> parents: 27792 diff changeset	60 testedwith = 'internal'
8c9bbf5cd349 chgserver: mark as a built-in extension Yuya Nishihara <yuya@tcha.org> parents: 27792 diff changeset	61
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	62 _log = commandserver.log
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	63
28262 53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	64 def _hashlist(items):
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	65 """return sha1 hexdigest for a list"""
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	66 return util.sha1(str(items)).hexdigest()
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	67
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	68 # sensitive config sections affecting confighash
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	69 _configsections = ['extensions']
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	70
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	71 # sensitive environment variables affecting confighash
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	72 _envre = re.compile(r'''\A(?:
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	73 CHGHG
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	74 \|HG.*
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	75 \|LANG(?:UAGE)?
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	76 \|LC_.*
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	77 \|LD_.*
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	78 \|PATH
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	79 \|PYTHON.*
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	80 \|TERM(?:INFO)?
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	81 \|TZ
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	82 )\Z''', re.X)
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	83
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	84 def _confighash(ui):
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	85 """return a quick hash for detecting config/env changes
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	86
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	87 confighash is the hash of sensitive config items and environment variables.
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	88
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	89 for chgserver, it is designed that once confighash changes, the server is
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	90 not qualified to serve its client and should redirect the client to a new
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	91 server. different from mtimehash, confighash change will not mark the
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	92 server outdated and exit since the user can have different configs at the
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	93 same time.
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	94 """
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	95 sectionitems = []
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	96 for section in _configsections:
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	97 sectionitems.append(ui.configitems(section))
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	98 sectionhash = _hashlist(sectionitems)
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	99 envitems = [(k, v) for k, v in os.environ.iteritems() if _envre.match(k)]
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	100 envhash = _hashlist(sorted(envitems))
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	101 return sectionhash[:6] + envhash[:6]
53dc4aada2d9 chgserver: add utilities to calculate confighash Jun Wu <quark@fb.com> parents: 28261 diff changeset	102
28276 b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	103 def _getmtimepaths(ui):
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	104 """get a list of paths that should be checked to detect change
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	105
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	106 The list will include:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	107 - extensions (will not cover all files for complex extensions)
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	108 - mercurial/__version__.py
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	109 - python binary
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	110 """
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	111 modules = [m for n, m in extensions.extensions(ui)]
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	112 try:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	113 from mercurial import __version__
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	114 modules.append(__version__)
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	115 except ImportError:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	116 pass
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	117 files = [sys.executable]
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	118 for m in modules:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	119 try:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	120 files.append(inspect.getabsfile(m))
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	121 except TypeError:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	122 pass
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	123 return sorted(set(files))
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	124
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	125 def _mtimehash(paths):
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	126 """return a quick hash for detecting file changes
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	127
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	128 mtimehash calls stat on given paths and calculate a hash based on size and
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	129 mtime of each file. mtimehash does not read file content because reading is
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	130 expensive. therefore it's not 100% reliable for detecting content changes.
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	131 it's possible to return different hashes for same file contents.
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	132 it's also possible to return a same hash for different file contents for
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	133 some carefully crafted situation.
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	134
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	135 for chgserver, it is designed that once mtimehash changes, the server is
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	136 considered outdated immediately and should no longer provide service.
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	137 """
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	138 def trystat(path):
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	139 try:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	140 st = os.stat(path)
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	141 return (st.st_mtime, st.st_size)
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	142 except OSError:
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	143 # could be ENOENT, EPERM etc. not fatal in any case
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	144 pass
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	145 return _hashlist(map(trystat, paths))[:12]
b4ceadb2c439 chgserver: add utilities to calculate mtimehash Jun Wu <quark@fb.com> parents: 28264 diff changeset	146
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	147 # copied from hgext/pager.py:uisetup()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	148 def _setuppagercmd(ui, options, cmd):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	149 if not ui.formatted():
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	150 return
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	151
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	152 p = ui.config("pager", "pager", os.environ.get("PAGER"))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	153 usepager = False
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	154 always = util.parsebool(options['pager'])
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	155 auto = options['pager'] == 'auto'
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	156
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	157 if not p:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	158 pass
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	159 elif always:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	160 usepager = True
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	161 elif not auto:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	162 usepager = False
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	163 else:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	164 attended = ['annotate', 'cat', 'diff', 'export', 'glog', 'log', 'qdiff']
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	165 attend = ui.configlist('pager', 'attend', attended)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	166 ignore = ui.configlist('pager', 'ignore')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	167 cmds, _ = cmdutil.findcmd(cmd, commands.table)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	168
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	169 for cmd in cmds:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	170 var = 'attend-%s' % cmd
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	171 if ui.config('pager', var):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	172 usepager = ui.configbool('pager', var)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	173 break
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	174 if (cmd in attend or
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	175 (cmd not in ignore and not attend)):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	176 usepager = True
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	177 break
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	178
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	179 if usepager:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	180 ui.setconfig('ui', 'formatted', ui.formatted(), 'pager')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	181 ui.setconfig('ui', 'interactive', False, 'pager')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	182 return p
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	183
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	184 _envvarre = re.compile(r'\$[a-zA-Z_]+')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	185
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	186 def _clearenvaliases(cmdtable):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	187 """Remove stale command aliases referencing env vars; variable expansion
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	188 is done at dispatch.addaliases()"""
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	189 for name, tab in cmdtable.items():
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	190 cmddef = tab[0]
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	191 if (isinstance(cmddef, dispatch.cmdalias) and
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	192 not cmddef.definition.startswith('!') and # shell alias
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	193 _envvarre.search(cmddef.definition)):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	194 del cmdtable[name]
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	195
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	196 def _newchgui(srcui, csystem):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	197 class chgui(srcui.__class__):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	198 def __init__(self, src=None):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	199 super(chgui, self).__init__(src)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	200 if src:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	201 self._csystem = getattr(src, '_csystem', csystem)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	202 else:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	203 self._csystem = csystem
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	204
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	205 def system(self, cmd, environ=None, cwd=None, onerr=None,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	206 errprefix=None):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	207 # copied from mercurial/util.py:system()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	208 self.flush()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	209 def py2shell(val):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	210 if val is None or val is False:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	211 return '0'
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	212 if val is True:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	213 return '1'
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	214 return str(val)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	215 env = os.environ.copy()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	216 if environ:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	217 env.update((k, py2shell(v)) for k, v in environ.iteritems())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	218 env['HG'] = util.hgexecutable()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	219 rc = self._csystem(cmd, env, cwd)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	220 if rc and onerr:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	221 errmsg = '%s %s' % (os.path.basename(cmd.split(None, 1)[0]),
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	222 util.explainexit(rc)[0])
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	223 if errprefix:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	224 errmsg = '%s: %s' % (errprefix, errmsg)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	225 raise onerr(errmsg)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	226 return rc
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	227
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	228 return chgui(srcui)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	229
28264 3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	230 def _renewui(srcui, args=None):
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	231 if not args:
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	232 args = []
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	233
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	234 newui = srcui.__class__()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	235 for a in ['fin', 'fout', 'ferr', 'environ']:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	236 setattr(newui, a, getattr(srcui, a))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	237 if util.safehasattr(srcui, '_csystem'):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	238 newui._csystem = srcui._csystem
28264 3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	239
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	240 # load wd and repo config, copied from dispatch.py
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	241 cwds = dispatch._earlygetopt(['--cwd'], args)
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	242 cwd = cwds and os.path.realpath(cwds[-1]) or None
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	243 rpath = dispatch._earlygetopt(["-R", "--repository", "--repo"], args)
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	244 path, newui = dispatch._getlocal(newui, rpath, wd=cwd)
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	245
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	246 # internal config: extensions.chgserver
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	247 # copy it. it can only be overrided from command line.
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	248 newui.setconfig('extensions', 'chgserver',
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	249 srcui.config('extensions', 'chgserver'), '--config')
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	250
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	251 # command line args
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	252 dispatch._parseconfig(newui, dispatch._earlygetopt(['--config'], args))
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	253
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	254 # stolen from tortoisehg.util.copydynamicconfig()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	255 for section, name, value in srcui.walkconfig():
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	256 source = srcui.configsource(section, name)
28264 3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	257 if ':' in source or source == '--config':
3682e201cce6 chgserver: make _renewui load repo and command line configs Jun Wu <quark@fb.com> parents: 28262 diff changeset	258 # path:line or command line
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	259 continue
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	260 if source == 'none':
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	261 # ui.configsource returns 'none' by default
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	262 source = ''
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	263 newui.setconfig(section, name, value, source)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	264 return newui
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	265
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	266 class channeledsystem(object):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	267 """Propagate ui.system() request in the following format:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	268
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	269 payload length (unsigned int),
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	270 cmd, '\0',
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	271 cwd, '\0',
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	272 envkey, '=', val, '\0',
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	273 ...
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	274 envkey, '=', val
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	275
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	276 and waits:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	277
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	278 exitcode length (unsigned int),
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	279 exitcode (int)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	280 """
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	281 def __init__(self, in_, out, channel):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	282 self.in_ = in_
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	283 self.out = out
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	284 self.channel = channel
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	285
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	286 def __call__(self, cmd, environ, cwd):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	287 args = [util.quotecommand(cmd), cwd or '.']
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	288 args.extend('%s=%s' % (k, v) for k, v in environ.iteritems())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	289 data = '\0'.join(args)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	290 self.out.write(struct.pack('>cI', self.channel, len(data)))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	291 self.out.write(data)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	292 self.out.flush()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	293
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	294 length = self.in_.read(4)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	295 length, = struct.unpack('>I', length)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	296 if length != 4:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	297 raise error.Abort(_('invalid response'))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	298 rc, = struct.unpack('>i', self.in_.read(4))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	299 return rc
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	300
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	301 _iochannels = [
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	302 # server.ch, ui.fp, mode
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	303 ('cin', 'fin', 'rb'),
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	304 ('cout', 'fout', 'wb'),
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	305 ('cerr', 'ferr', 'wb'),
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	306 ]
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	307
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	308 class chgcmdserver(commandserver.server):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	309 def __init__(self, ui, repo, fin, fout, sock):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	310 super(chgcmdserver, self).__init__(
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	311 _newchgui(ui, channeledsystem(fin, fout, 'S')), repo, fin, fout)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	312 self.clientsock = sock
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	313 self._oldios = [] # original (self.ch, ui.fp, fd) before "attachio"
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	314
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	315 def cleanup(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	316 # dispatch._runcatch() does not flush outputs if exception is not
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	317 # handled by dispatch._dispatch()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	318 self.ui.flush()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	319 self._restoreio()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	320
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	321 def attachio(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	322 """Attach to client's stdio passed via unix domain socket; all
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	323 channels except cresult will no longer be used
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	324 """
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	325 # tell client to sendmsg() with 1-byte payload, which makes it
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	326 # distinctive from "attachio\n" command consumed by client.read()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	327 self.clientsock.sendall(struct.pack('>cI', 'I', 1))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	328 clientfds = osutil.recvfds(self.clientsock.fileno())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	329 _log('received fds: %r\n' % clientfds)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	330
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	331 ui = self.ui
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	332 ui.flush()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	333 first = self._saveio()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	334 for fd, (cn, fn, mode) in zip(clientfds, _iochannels):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	335 assert fd > 0
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	336 fp = getattr(ui, fn)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	337 os.dup2(fd, fp.fileno())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	338 os.close(fd)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	339 if not first:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	340 continue
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	341 # reset buffering mode when client is first attached. as we want
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	342 # to see output immediately on pager, the mode stays unchanged
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	343 # when client re-attached. ferr is unchanged because it should
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	344 # be unbuffered no matter if it is a tty or not.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	345 if fn == 'ferr':
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	346 newfp = fp
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	347 else:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	348 # make it line buffered explicitly because the default is
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	349 # decided on first write(), where fout could be a pager.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	350 if fp.isatty():
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	351 bufsize = 1 # line buffered
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	352 else:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	353 bufsize = -1 # system default
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	354 newfp = os.fdopen(fp.fileno(), mode, bufsize)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	355 setattr(ui, fn, newfp)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	356 setattr(self, cn, newfp)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	357
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	358 self.cresult.write(struct.pack('>i', len(clientfds)))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	359
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	360 def _saveio(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	361 if self._oldios:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	362 return False
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	363 ui = self.ui
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	364 for cn, fn, _mode in _iochannels:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	365 ch = getattr(self, cn)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	366 fp = getattr(ui, fn)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	367 fd = os.dup(fp.fileno())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	368 self._oldios.append((ch, fp, fd))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	369 return True
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	370
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	371 def _restoreio(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	372 ui = self.ui
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	373 for (ch, fp, fd), (cn, fn, _mode) in zip(self._oldios, _iochannels):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	374 newfp = getattr(ui, fn)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	375 # close newfp while it's associated with client; otherwise it
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	376 # would be closed when newfp is deleted
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	377 if newfp is not fp:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	378 newfp.close()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	379 # restore original fd: fp is open again
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	380 os.dup2(fd, fp.fileno())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	381 os.close(fd)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	382 setattr(self, cn, ch)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	383 setattr(ui, fn, fp)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	384 del self._oldios[:]
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	385
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	386 def chdir(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	387 """Change current directory
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	388
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	389 Note that the behavior of --cwd option is bit different from this.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	390 It does not affect --config parameter.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	391 """
28158 7cc57a531f0c chgserver: use _readlist and _readstr Jun Wu <quark@fb.com> parents: 28014 diff changeset	392 path = self._readstr()
7cc57a531f0c chgserver: use _readlist and _readstr Jun Wu <quark@fb.com> parents: 28014 diff changeset	393 if not path:
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	394 return
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	395 _log('chdir to %r\n' % path)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	396 os.chdir(path)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	397
28159 d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	398 def setumask(self):
d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	399 """Change umask"""
d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	400 mask = struct.unpack('>I', self._read(4))[0]
d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	401 _log('setumask %r\n' % mask)
d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	402 os.umask(mask)
d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	403
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	404 def getpager(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	405 """Read cmdargs and write pager command to r-channel if enabled
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	406
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	407 If pager isn't enabled, this writes '\0' because channeledoutput
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	408 does not allow to write empty data.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	409 """
28158 7cc57a531f0c chgserver: use _readlist and _readstr Jun Wu <quark@fb.com> parents: 28014 diff changeset	410 args = self._readlist()
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	411 try:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	412 cmd, _func, args, options, _cmdoptions = dispatch._parse(self.ui,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	413 args)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	414 except (error.Abort, error.AmbiguousCommand, error.CommandError,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	415 error.UnknownCommand):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	416 cmd = None
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	417 options = {}
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	418 if not cmd or 'pager' not in options:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	419 self.cresult.write('\0')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	420 return
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	421
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	422 pagercmd = _setuppagercmd(self.ui, options, cmd)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	423 if pagercmd:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	424 self.cresult.write(pagercmd)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	425 else:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	426 self.cresult.write('\0')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	427
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	428 def setenv(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	429 """Clear and update os.environ
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	430
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	431 Note that not all variables can make an effect on the running process.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	432 """
28158 7cc57a531f0c chgserver: use _readlist and _readstr Jun Wu <quark@fb.com> parents: 28014 diff changeset	433 l = self._readlist()
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	434 try:
28158 7cc57a531f0c chgserver: use _readlist and _readstr Jun Wu <quark@fb.com> parents: 28014 diff changeset	435 newenv = dict(s.split('=', 1) for s in l)
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	436 except ValueError:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	437 raise ValueError('unexpected value in setenv request')
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	438
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	439 diffkeys = set(k for k in set(os.environ.keys() + newenv.keys())
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	440 if os.environ.get(k) != newenv.get(k))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	441 _log('change env: %r\n' % sorted(diffkeys))
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	442
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	443 os.environ.clear()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	444 os.environ.update(newenv)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	445
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	446 if set(['HGPLAIN', 'HGPLAINEXCEPT']) & diffkeys:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	447 # reload config so that ui.plain() takes effect
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	448 self.ui = _renewui(self.ui)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	449
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	450 _clearenvaliases(commands.table)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	451
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	452 capabilities = commandserver.server.capabilities.copy()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	453 capabilities.update({'attachio': attachio,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	454 'chdir': chdir,
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	455 'getpager': getpager,
28159 d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	456 'setenv': setenv,
d2d04d1d2f92 chgserver: add setumask method Jun Wu <quark@fb.com> parents: 28158 diff changeset	457 'setumask': setumask})
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	458
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	459 # copied from mercurial/commandserver.py
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	460 class _requesthandler(SocketServer.StreamRequestHandler):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	461 def handle(self):
28014 83fc0c055664 chgserver: create new process group after fork (issue5051) Jun Wu <quark@fb.com> parents: 27793 diff changeset	462 # use a different process group from the master process, making this
83fc0c055664 chgserver: create new process group after fork (issue5051) Jun Wu <quark@fb.com> parents: 27793 diff changeset	463 # process pass kernel "is_current_pgrp_orphaned" check so signals like
83fc0c055664 chgserver: create new process group after fork (issue5051) Jun Wu <quark@fb.com> parents: 27793 diff changeset	464 # SIGTSTP, SIGTTIN, SIGTTOU are not ignored.
83fc0c055664 chgserver: create new process group after fork (issue5051) Jun Wu <quark@fb.com> parents: 27793 diff changeset	465 os.setpgid(0, 0)
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	466 ui = self.server.ui
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	467 repo = self.server.repo
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	468 sv = chgcmdserver(ui, repo, self.rfile, self.wfile, self.connection)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	469 try:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	470 try:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	471 sv.serve()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	472 # handle exceptions that may be raised by command server. most of
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	473 # known exceptions are caught by dispatch.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	474 except error.Abort as inst:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	475 ui.warn(_('abort: %s\n') % inst)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	476 except IOError as inst:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	477 if inst.errno != errno.EPIPE:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	478 raise
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	479 except KeyboardInterrupt:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	480 pass
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	481 finally:
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	482 sv.cleanup()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	483 except: # re-raises
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	484 # also write traceback to error channel. otherwise client cannot
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	485 # see it because it is written to server's stderr by default.
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	486 traceback.print_exc(file=sv.cerr)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	487 raise
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	488
28223 0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	489 def _tempaddress(address):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	490 return '%s.%d.tmp' % (address, os.getpid())
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	491
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	492 class AutoExitMixIn: # use old-style to comply with SocketServer design
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	493 lastactive = time.time()
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	494 idletimeout = 3600 # default 1 hour
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	495
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	496 def startautoexitthread(self):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	497 # note: the auto-exit check here is cheap enough to not use a thread,
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	498 # be done in serve_forever. however SocketServer is hook-unfriendly,
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	499 # you simply cannot hook serve_forever without copying a lot of code.
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	500 # besides, serve_forever's docstring suggests using thread.
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	501 thread = threading.Thread(target=self._autoexitloop)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	502 thread.daemon = True
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	503 thread.start()
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	504
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	505 def _autoexitloop(self, interval=1):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	506 while True:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	507 time.sleep(interval)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	508 if not self.issocketowner():
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	509 _log('%s is not owned, exiting.\n' % self.server_address)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	510 break
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	511 if time.time() - self.lastactive > self.idletimeout:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	512 _log('being idle too long. exiting.\n')
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	513 break
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	514 self.shutdown()
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	515
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	516 def process_request(self, request, address):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	517 self.lastactive = time.time()
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	518 return SocketServer.ForkingMixIn.process_request(
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	519 self, request, address)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	520
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	521 def server_bind(self):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	522 # use a unique temp address so we can stat the file and do ownership
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	523 # check later
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	524 tempaddress = _tempaddress(self.server_address)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	525 self.socket.bind(tempaddress)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	526 self._socketstat = os.stat(tempaddress)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	527 # rename will replace the old socket file if exists atomically. the
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	528 # old server will detect ownership change and exit.
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	529 util.rename(tempaddress, self.server_address)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	530
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	531 def issocketowner(self):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	532 try:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	533 stat = os.stat(self.server_address)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	534 return (stat.st_ino == self._socketstat.st_ino and
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	535 stat.st_mtime == self._socketstat.st_mtime)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	536 except OSError:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	537 return False
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	538
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	539 def unlinksocketfile(self):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	540 if not self.issocketowner():
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	541 return
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	542 # it is possible to have a race condition here that we may
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	543 # remove another server's socket file. but that's okay
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	544 # since that server will detect and exit automatically and
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	545 # the client will start a new server on demand.
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	546 try:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	547 os.unlink(self.server_address)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	548 except OSError as exc:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	549 if exc.errno != errno.ENOENT:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	550 raise
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	551
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	552 class chgunixservice(commandserver.unixservice):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	553 def init(self):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	554 # drop options set for "hg serve --cmdserver" command
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	555 self.ui.setconfig('progress', 'assume-tty', None)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	556 signal.signal(signal.SIGHUP, self._reloadconfig)
28223 0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	557 class cls(AutoExitMixIn, SocketServer.ForkingMixIn,
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	558 SocketServer.UnixStreamServer):
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	559 ui = self.ui
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	560 repo = self.repo
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	561 self.server = cls(self.address, _requesthandler)
28223 0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	562 self.server.idletimeout = self.ui.configint(
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	563 'chgserver', 'idletimeout', self.server.idletimeout)
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	564 self.server.startautoexitthread()
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	565 # avoid writing "listening at" message to stdout before attachio
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	566 # request, which calls setvbuf()
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	567
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	568 def _reloadconfig(self, signum, frame):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	569 self.ui = self.server.ui = _renewui(self.ui)
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	570
28223 0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	571 def run(self):
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	572 try:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	573 self.server.serve_forever()
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	574 finally:
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	575 self.server.unlinksocketfile()
0a853dc9b306 chgserver: auto exit after being idle for too long or lose the socket file Jun Wu <quark@fb.com> parents: 28159 diff changeset	576
27792 980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	577 def uisetup(ui):
980957333cfa chgserver: import background server extension from cHg Yuya Nishihara <yuya@tcha.org> parents: diff changeset	578 commandserver._servicemap['chgunix'] = chgunixservice
28261 2ab59ac06b76 chg: detect chg started by chg Jun Wu <quark@fb.com> parents: 28223 diff changeset	579
2ab59ac06b76 chg: detect chg started by chg Jun Wu <quark@fb.com> parents: 28223 diff changeset	580 # CHGINTERNALMARK is temporarily set by chg client to detect if chg will
2ab59ac06b76 chg: detect chg started by chg Jun Wu <quark@fb.com> parents: 28223 diff changeset	581 # start another chg. drop it to avoid possible side effects.
2ab59ac06b76 chg: detect chg started by chg Jun Wu <quark@fb.com> parents: 28223 diff changeset	582 if 'CHGINTERNALMARK' in os.environ:
2ab59ac06b76 chg: detect chg started by chg Jun Wu <quark@fb.com> parents: 28223 diff changeset	583 del os.environ['CHGINTERNALMARK']

Mercurial > public > mercurial-scm > hg-stable

annotate hgext/chgserver.py @ 28276:b4ceadb2c439