Mercurial > hg
annotate mercurial/chgserver.py @ 44261:04a3ae7aba14
chg: force-set LC_CTYPE on server start to actual value from the environment
Python 3.7+ will "coerce" the LC_CTYPE variable in many instances, and this can
cause issues with chg being able to start up. D7550 attempted to fix this, but a
combination of a misreading of the way that python3.7 does the coercion and an
untested state (LC_CTYPE being set to an invalid value) meant that this was
still not quite working.
This change will cause differences between chg and hg: hg will have the LC_CTYPE
environment variable coerced, while chg will not. This is unlikely to cause any
detectable behavior differences in what Mercurial itself outputs, but it does
have two known effects:
- When using hg, the coerced LC_CTYPE will be passed to subprocesses, even
non-python ones. Using chg will remove the coercion, and this will not
happen. This is arguably more correct behavior on chg's part.
- On macOS, if you set your region to Brazil but your language to English,
this isn't representable in locale strings, so macOS sets LC_CTYPE=UTF-8. If
this value is passed along when ssh'ing to a non-macOS machine, some
functions (such as locale.setlocale()) may raise an exception due to an
unsupported locale setting. This is most easily encountered when doing an
interactive commit/split/etc. when using ui.interface=curses.
Differential Revision: https://phab.mercurial-scm.org/D8039
author | Kyle Lippincott <spectral@google.com> |
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date | Wed, 29 Jan 2020 13:39:50 -0800 |
parents | a61287a95dc3 |
children | a69c08cdb2a8 |
rev | line source |
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1 # chgserver.py - command server extension for cHg |
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2 # |
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3 # Copyright 2011 Yuya Nishihara <yuya@tcha.org> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 """command server extension for cHg |
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9 |
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10 'S' channel (read/write) |
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11 propagate ui.system() request to client |
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12 |
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13 'attachio' command |
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14 attach client's stdio passed by sendmsg() |
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15 |
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16 'chdir' command |
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17 change current directory |
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18 |
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19 'setenv' command |
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20 replace os.environ completely |
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21 |
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22 'setumask' command (DEPRECATED) |
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23 'setumask2' command |
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25 | |
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26 'validate' command |
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27 reload the config and check if the server is up to date |
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28 |
28325 | 29 Config |
30 ------ | |
31 | |
32 :: | |
33 | |
34 [chgserver] | |
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35 # how long (in seconds) should an idle chg server exit |
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36 idletimeout = 3600 |
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37 |
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38 # whether to skip config or env change checks |
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39 skiphash = False |
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40 """ |
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41 |
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42 from __future__ import absolute_import |
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43 |
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44 import inspect |
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45 import os |
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46 import re |
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47 import socket |
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48 import stat |
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49 import struct |
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50 import time |
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51 |
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52 from .i18n import _ |
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53 from .pycompat import ( |
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54 getattr, |
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55 setattr, |
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56 ) |
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57 |
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58 from . import ( |
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59 commandserver, |
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60 encoding, |
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61 error, |
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62 extensions, |
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63 node, |
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64 pycompat, |
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65 util, |
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66 ) |
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67 |
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68 from .utils import ( |
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69 hashutil, |
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70 procutil, |
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71 stringutil, |
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72 ) |
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73 |
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74 |
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75 def _hashlist(items): |
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76 """return sha1 hexdigest for a list""" |
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77 return node.hex(hashutil.sha1(stringutil.pprint(items)).digest()) |
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78 |
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79 |
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80 # sensitive config sections affecting confighash |
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81 _configsections = [ |
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82 b'alias', # affects global state commands.table |
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83 b'eol', # uses setconfig('eol', ...) |
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84 b'extdiff', # uisetup will register new commands |
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85 b'extensions', |
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86 ] |
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87 |
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88 _configsectionitems = [ |
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89 (b'commands', b'show.aliasprefix'), # show.py reads it in extsetup |
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90 ] |
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91 |
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92 # sensitive environment variables affecting confighash |
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93 _envre = re.compile( |
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94 br'''\A(?: |
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95 CHGHG |
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96 |HG(?:DEMANDIMPORT|EMITWARNINGS|MODULEPOLICY|PROF|RCPATH)? |
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97 |HG(?:ENCODING|PLAIN).* |
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98 |LANG(?:UAGE)? |
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99 |LC_.* |
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100 |LD_.* |
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101 |PATH |
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102 |PYTHON.* |
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103 |TERM(?:INFO)? |
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104 |TZ |
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105 )\Z''', |
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106 re.X, |
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107 ) |
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108 |
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109 |
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110 def _confighash(ui): |
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111 """return a quick hash for detecting config/env changes |
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112 |
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113 confighash is the hash of sensitive config items and environment variables. |
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114 |
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115 for chgserver, it is designed that once confighash changes, the server is |
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116 not qualified to serve its client and should redirect the client to a new |
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117 server. different from mtimehash, confighash change will not mark the |
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118 server outdated and exit since the user can have different configs at the |
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119 same time. |
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120 """ |
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121 sectionitems = [] |
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122 for section in _configsections: |
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123 sectionitems.append(ui.configitems(section)) |
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124 for section, item in _configsectionitems: |
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125 sectionitems.append(ui.config(section, item)) |
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126 sectionhash = _hashlist(sectionitems) |
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127 # If $CHGHG is set, the change to $HG should not trigger a new chg server |
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128 if b'CHGHG' in encoding.environ: |
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129 ignored = {b'HG'} |
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130 else: |
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131 ignored = set() |
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132 envitems = [ |
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133 (k, v) |
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134 for k, v in pycompat.iteritems(encoding.environ) |
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135 if _envre.match(k) and k not in ignored |
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136 ] |
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137 envhash = _hashlist(sorted(envitems)) |
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138 return sectionhash[:6] + envhash[:6] |
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139 |
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140 |
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141 def _getmtimepaths(ui): |
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142 """get a list of paths that should be checked to detect change |
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143 |
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144 The list will include: |
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145 - extensions (will not cover all files for complex extensions) |
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146 - mercurial/__version__.py |
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147 - python binary |
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148 """ |
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149 modules = [m for n, m in extensions.extensions(ui)] |
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150 try: |
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151 from . import __version__ |
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152 |
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153 modules.append(__version__) |
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154 except ImportError: |
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155 pass |
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156 files = [] |
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157 if pycompat.sysexecutable: |
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158 files.append(pycompat.sysexecutable) |
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159 for m in modules: |
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160 try: |
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161 files.append(pycompat.fsencode(inspect.getabsfile(m))) |
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162 except TypeError: |
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163 pass |
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164 return sorted(set(files)) |
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165 |
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166 |
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167 def _mtimehash(paths): |
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168 """return a quick hash for detecting file changes |
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169 |
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170 mtimehash calls stat on given paths and calculate a hash based on size and |
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171 mtime of each file. mtimehash does not read file content because reading is |
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172 expensive. therefore it's not 100% reliable for detecting content changes. |
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173 it's possible to return different hashes for same file contents. |
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174 it's also possible to return a same hash for different file contents for |
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175 some carefully crafted situation. |
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176 |
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177 for chgserver, it is designed that once mtimehash changes, the server is |
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178 considered outdated immediately and should no longer provide service. |
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179 |
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180 mtimehash is not included in confighash because we only know the paths of |
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181 extensions after importing them (there is imp.find_module but that faces |
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182 race conditions). We need to calculate confighash without importing. |
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183 """ |
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184 |
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185 def trystat(path): |
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186 try: |
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187 st = os.stat(path) |
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188 return (st[stat.ST_MTIME], st.st_size) |
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189 except OSError: |
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190 # could be ENOENT, EPERM etc. not fatal in any case |
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191 pass |
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192 |
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193 return _hashlist(pycompat.maplist(trystat, paths))[:12] |
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194 |
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195 |
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196 class hashstate(object): |
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197 """a structure storing confighash, mtimehash, paths used for mtimehash""" |
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198 |
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199 def __init__(self, confighash, mtimehash, mtimepaths): |
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200 self.confighash = confighash |
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201 self.mtimehash = mtimehash |
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202 self.mtimepaths = mtimepaths |
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203 |
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204 @staticmethod |
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205 def fromui(ui, mtimepaths=None): |
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206 if mtimepaths is None: |
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207 mtimepaths = _getmtimepaths(ui) |
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208 confighash = _confighash(ui) |
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209 mtimehash = _mtimehash(mtimepaths) |
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210 ui.log( |
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211 b'cmdserver', |
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212 b'confighash = %s mtimehash = %s\n', |
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213 confighash, |
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214 mtimehash, |
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215 ) |
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216 return hashstate(confighash, mtimehash, mtimepaths) |
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217 |
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218 |
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219 def _newchgui(srcui, csystem, attachio): |
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220 class chgui(srcui.__class__): |
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221 def __init__(self, src=None): |
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222 super(chgui, self).__init__(src) |
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223 if src: |
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224 self._csystem = getattr(src, '_csystem', csystem) |
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225 else: |
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226 self._csystem = csystem |
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227 |
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228 def _runsystem(self, cmd, environ, cwd, out): |
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229 # fallback to the original system method if |
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230 # a. the output stream is not stdout (e.g. stderr, cStringIO), |
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231 # b. or stdout is redirected by protectfinout(), |
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232 # because the chg client is not aware of these situations and |
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233 # will behave differently (i.e. write to stdout). |
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234 if ( |
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235 out is not self.fout |
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236 or not util.safehasattr(self.fout, b'fileno') |
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237 or self.fout.fileno() != procutil.stdout.fileno() |
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238 or self._finoutredirected |
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239 ): |
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240 return procutil.system(cmd, environ=environ, cwd=cwd, out=out) |
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241 self.flush() |
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242 return self._csystem(cmd, procutil.shellenviron(environ), cwd) |
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243 |
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244 def _runpager(self, cmd, env=None): |
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245 self._csystem( |
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246 cmd, |
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247 procutil.shellenviron(env), |
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248 type=b'pager', |
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249 cmdtable={b'attachio': attachio}, |
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250 ) |
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251 return True |
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252 |
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253 return chgui(srcui) |
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254 |
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255 |
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256 def _loadnewui(srcui, args, cdebug): |
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257 from . import dispatch # avoid cycle |
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258 |
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259 newui = srcui.__class__.load() |
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260 for a in [b'fin', b'fout', b'ferr', b'environ']: |
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261 setattr(newui, a, getattr(srcui, a)) |
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262 if util.safehasattr(srcui, b'_csystem'): |
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263 newui._csystem = srcui._csystem |
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264 |
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265 # command line args |
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266 options = dispatch._earlyparseopts(newui, args) |
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267 dispatch._parseconfig(newui, options[b'config']) |
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268 |
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269 # stolen from tortoisehg.util.copydynamicconfig() |
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270 for section, name, value in srcui.walkconfig(): |
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271 source = srcui.configsource(section, name) |
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272 if b':' in source or source == b'--config' or source.startswith(b'$'): |
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273 # path:line or command line, or environ |
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274 continue |
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275 newui.setconfig(section, name, value, source) |
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276 |
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277 # load wd and repo config, copied from dispatch.py |
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278 cwd = options[b'cwd'] |
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279 cwd = cwd and os.path.realpath(cwd) or None |
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280 rpath = options[b'repository'] |
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281 path, newlui = dispatch._getlocal(newui, rpath, wd=cwd) |
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282 |
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283 extensions.populateui(newui) |
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284 commandserver.setuplogging(newui, fp=cdebug) |
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285 if newui is not newlui: |
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286 extensions.populateui(newlui) |
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287 commandserver.setuplogging(newlui, fp=cdebug) |
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288 |
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289 return (newui, newlui) |
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290 |
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291 |
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292 class channeledsystem(object): |
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293 """Propagate ui.system() request in the following format: |
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294 |
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295 payload length (unsigned int), |
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296 type, '\0', |
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297 cmd, '\0', |
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298 cwd, '\0', |
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299 envkey, '=', val, '\0', |
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300 ... |
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301 envkey, '=', val |
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302 |
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303 if type == 'system', waits for: |
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304 |
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305 exitcode length (unsigned int), |
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306 exitcode (int) |
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307 |
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308 if type == 'pager', repetitively waits for a command name ending with '\n' |
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309 and executes it defined by cmdtable, or exits the loop if the command name |
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310 is empty. |
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311 """ |
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312 |
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313 def __init__(self, in_, out, channel): |
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314 self.in_ = in_ |
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315 self.out = out |
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316 self.channel = channel |
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317 |
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318 def __call__(self, cmd, environ, cwd=None, type=b'system', cmdtable=None): |
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319 args = [type, procutil.quotecommand(cmd), os.path.abspath(cwd or b'.')] |
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320 args.extend(b'%s=%s' % (k, v) for k, v in pycompat.iteritems(environ)) |
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321 data = b'\0'.join(args) |
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322 self.out.write(struct.pack(b'>cI', self.channel, len(data))) |
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323 self.out.write(data) |
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324 self.out.flush() |
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325 |
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326 if type == b'system': |
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327 length = self.in_.read(4) |
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328 (length,) = struct.unpack(b'>I', length) |
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329 if length != 4: |
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330 raise error.Abort(_(b'invalid response')) |
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331 (rc,) = struct.unpack(b'>i', self.in_.read(4)) |
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332 return rc |
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333 elif type == b'pager': |
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334 while True: |
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335 cmd = self.in_.readline()[:-1] |
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336 if not cmd: |
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337 break |
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338 if cmdtable and cmd in cmdtable: |
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339 cmdtable[cmd]() |
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340 else: |
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341 raise error.Abort(_(b'unexpected command: %s') % cmd) |
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342 else: |
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343 raise error.ProgrammingError(b'invalid S channel type: %s' % type) |
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344 |
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345 |
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346 _iochannels = [ |
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347 # server.ch, ui.fp, mode |
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348 (b'cin', b'fin', 'rb'), |
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349 (b'cout', b'fout', 'wb'), |
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350 (b'cerr', b'ferr', 'wb'), |
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351 ] |
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352 |
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353 |
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354 class chgcmdserver(commandserver.server): |
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355 def __init__( |
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356 self, ui, repo, fin, fout, sock, prereposetups, hashstate, baseaddress |
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357 ): |
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358 super(chgcmdserver, self).__init__( |
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359 _newchgui(ui, channeledsystem(fin, fout, b'S'), self.attachio), |
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360 repo, |
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361 fin, |
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362 fout, |
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363 prereposetups, |
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364 ) |
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365 self.clientsock = sock |
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366 self._ioattached = False |
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367 self._oldios = [] # original (self.ch, ui.fp, fd) before "attachio" |
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368 self.hashstate = hashstate |
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369 self.baseaddress = baseaddress |
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370 if hashstate is not None: |
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371 self.capabilities = self.capabilities.copy() |
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372 self.capabilities[b'validate'] = chgcmdserver.validate |
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373 |
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374 def cleanup(self): |
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375 super(chgcmdserver, self).cleanup() |
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376 # dispatch._runcatch() does not flush outputs if exception is not |
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377 # handled by dispatch._dispatch() |
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378 self.ui.flush() |
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379 self._restoreio() |
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380 self._ioattached = False |
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381 |
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382 def attachio(self): |
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383 """Attach to client's stdio passed via unix domain socket; all |
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384 channels except cresult will no longer be used |
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385 """ |
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386 # tell client to sendmsg() with 1-byte payload, which makes it |
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387 # distinctive from "attachio\n" command consumed by client.read() |
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388 self.clientsock.sendall(struct.pack(b'>cI', b'I', 1)) |
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389 clientfds = util.recvfds(self.clientsock.fileno()) |
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390 self.ui.log(b'chgserver', b'received fds: %r\n', clientfds) |
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391 |
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392 ui = self.ui |
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393 ui.flush() |
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394 self._saveio() |
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395 for fd, (cn, fn, mode) in zip(clientfds, _iochannels): |
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396 assert fd > 0 |
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397 fp = getattr(ui, fn) |
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398 os.dup2(fd, fp.fileno()) |
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399 os.close(fd) |
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400 if self._ioattached: |
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401 continue |
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402 # reset buffering mode when client is first attached. as we want |
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403 # to see output immediately on pager, the mode stays unchanged |
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404 # when client re-attached. ferr is unchanged because it should |
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405 # be unbuffered no matter if it is a tty or not. |
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406 if fn == b'ferr': |
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407 newfp = fp |
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408 else: |
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409 # make it line buffered explicitly because the default is |
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410 # decided on first write(), where fout could be a pager. |
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411 if fp.isatty(): |
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412 bufsize = 1 # line buffered |
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413 else: |
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414 bufsize = -1 # system default |
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415 newfp = os.fdopen(fp.fileno(), mode, bufsize) |
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416 setattr(ui, fn, newfp) |
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417 setattr(self, cn, newfp) |
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418 |
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419 self._ioattached = True |
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420 self.cresult.write(struct.pack(b'>i', len(clientfds))) |
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421 |
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422 def _saveio(self): |
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423 if self._oldios: |
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424 return |
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425 ui = self.ui |
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426 for cn, fn, _mode in _iochannels: |
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427 ch = getattr(self, cn) |
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428 fp = getattr(ui, fn) |
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429 fd = os.dup(fp.fileno()) |
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430 self._oldios.append((ch, fp, fd)) |
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431 |
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432 def _restoreio(self): |
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433 ui = self.ui |
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434 for (ch, fp, fd), (cn, fn, _mode) in zip(self._oldios, _iochannels): |
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435 newfp = getattr(ui, fn) |
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436 # close newfp while it's associated with client; otherwise it |
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437 # would be closed when newfp is deleted |
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438 if newfp is not fp: |
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439 newfp.close() |
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440 # restore original fd: fp is open again |
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441 os.dup2(fd, fp.fileno()) |
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442 os.close(fd) |
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443 setattr(self, cn, ch) |
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444 setattr(ui, fn, fp) |
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445 del self._oldios[:] |
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446 |
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447 def validate(self): |
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448 """Reload the config and check if the server is up to date |
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449 |
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450 Read a list of '\0' separated arguments. |
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451 Write a non-empty list of '\0' separated instruction strings or '\0' |
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452 if the list is empty. |
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453 An instruction string could be either: |
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454 - "unlink $path", the client should unlink the path to stop the |
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455 outdated server. |
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456 - "redirect $path", the client should attempt to connect to $path |
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457 first. If it does not work, start a new server. It implies |
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458 "reconnect". |
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459 - "exit $n", the client should exit directly with code n. |
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460 This may happen if we cannot parse the config. |
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461 - "reconnect", the client should close the connection and |
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462 reconnect. |
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463 If neither "reconnect" nor "redirect" is included in the instruction |
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464 list, the client can continue with this server after completing all |
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465 the instructions. |
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466 """ |
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467 from . import dispatch # avoid cycle |
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468 |
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469 args = self._readlist() |
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470 try: |
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471 self.ui, lui = _loadnewui(self.ui, args, self.cdebug) |
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472 except error.ParseError as inst: |
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473 dispatch._formatparse(self.ui.warn, inst) |
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474 self.ui.flush() |
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475 self.cresult.write(b'exit 255') |
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476 return |
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477 except error.Abort as inst: |
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478 self.ui.error(_(b"abort: %s\n") % inst) |
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479 if inst.hint: |
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480 self.ui.error(_(b"(%s)\n") % inst.hint) |
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481 self.ui.flush() |
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482 self.cresult.write(b'exit 255') |
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483 return |
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484 newhash = hashstate.fromui(lui, self.hashstate.mtimepaths) |
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485 insts = [] |
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486 if newhash.mtimehash != self.hashstate.mtimehash: |
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487 addr = _hashaddress(self.baseaddress, self.hashstate.confighash) |
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488 insts.append(b'unlink %s' % addr) |
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489 # mtimehash is empty if one or more extensions fail to load. |
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490 # to be compatible with hg, still serve the client this time. |
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491 if self.hashstate.mtimehash: |
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492 insts.append(b'reconnect') |
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493 if newhash.confighash != self.hashstate.confighash: |
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494 addr = _hashaddress(self.baseaddress, newhash.confighash) |
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495 insts.append(b'redirect %s' % addr) |
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496 self.ui.log(b'chgserver', b'validate: %s\n', stringutil.pprint(insts)) |
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497 self.cresult.write(b'\0'.join(insts) or b'\0') |
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498 |
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499 def chdir(self): |
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500 """Change current directory |
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501 |
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502 Note that the behavior of --cwd option is bit different from this. |
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503 It does not affect --config parameter. |
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504 """ |
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505 path = self._readstr() |
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506 if not path: |
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507 return |
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508 self.ui.log(b'chgserver', b"chdir to '%s'\n", path) |
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509 os.chdir(path) |
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510 |
28159 | 511 def setumask(self): |
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512 """Change umask (DEPRECATED)""" |
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513 # BUG: this does not follow the message frame structure, but kept for |
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514 # backward compatibility with old chg clients for some time |
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515 self._setumask(self._read(4)) |
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516 |
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517 def setumask2(self): |
28159 | 518 """Change umask""" |
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519 data = self._readstr() |
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520 if len(data) != 4: |
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521 raise ValueError(b'invalid mask length in setumask2 request') |
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522 self._setumask(data) |
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523 |
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524 def _setumask(self, data): |
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525 mask = struct.unpack(b'>I', data)[0] |
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526 self.ui.log(b'chgserver', b'setumask %r\n', mask) |
28159 | 527 os.umask(mask) |
528 | |
30644 | 529 def runcommand(self): |
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530 # pager may be attached within the runcommand session, which should |
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531 # be detached at the end of the session. otherwise the pager wouldn't |
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532 # receive EOF. |
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533 globaloldios = self._oldios |
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534 self._oldios = [] |
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535 try: |
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536 return super(chgcmdserver, self).runcommand() |
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537 finally: |
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538 self._restoreio() |
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539 self._oldios = globaloldios |
30644 | 540 |
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541 def setenv(self): |
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542 """Clear and update os.environ |
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543 |
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544 Note that not all variables can make an effect on the running process. |
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545 """ |
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546 l = self._readlist() |
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547 try: |
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548 newenv = dict(s.split(b'=', 1) for s in l) |
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549 except ValueError: |
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550 raise ValueError(b'unexpected value in setenv request') |
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551 self.ui.log(b'chgserver', b'setenv: %r\n', sorted(newenv.keys())) |
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552 |
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553 encoding.environ.clear() |
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554 encoding.environ.update(newenv) |
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555 |
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556 capabilities = commandserver.server.capabilities.copy() |
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557 capabilities.update( |
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558 { |
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559 b'attachio': attachio, |
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560 b'chdir': chdir, |
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561 b'runcommand': runcommand, |
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562 b'setenv': setenv, |
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563 b'setumask': setumask, |
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564 b'setumask2': setumask2, |
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565 } |
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566 ) |
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567 |
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568 if util.safehasattr(procutil, b'setprocname'): |
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569 |
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570 def setprocname(self): |
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571 """Change process title""" |
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572 name = self._readstr() |
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573 self.ui.log(b'chgserver', b'setprocname: %r\n', name) |
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574 procutil.setprocname(name) |
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575 |
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576 capabilities[b'setprocname'] = setprocname |
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577 |
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578 |
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579 def _tempaddress(address): |
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580 return b'%s.%d.tmp' % (address, os.getpid()) |
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581 |
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582 |
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583 def _hashaddress(address, hashstr): |
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584 # if the basename of address contains '.', use only the left part. this |
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585 # makes it possible for the client to pass 'server.tmp$PID' and follow by |
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586 # an atomic rename to avoid locking when spawning new servers. |
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587 dirname, basename = os.path.split(address) |
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588 basename = basename.split(b'.', 1)[0] |
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589 return b'%s-%s' % (os.path.join(dirname, basename), hashstr) |
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590 |
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591 |
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592 class chgunixservicehandler(object): |
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593 """Set of operations for chg services""" |
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594 |
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595 pollinterval = 1 # [sec] |
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596 |
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597 def __init__(self, ui): |
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598 self.ui = ui |
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599 self._idletimeout = ui.configint(b'chgserver', b'idletimeout') |
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600 self._lastactive = time.time() |
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601 |
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602 def bindsocket(self, sock, address): |
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603 self._inithashstate(address) |
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604 self._checkextensions() |
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605 self._bind(sock) |
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606 self._createsymlink() |
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607 # no "listening at" message should be printed to simulate hg behavior |
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608 |
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609 def _inithashstate(self, address): |
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610 self._baseaddress = address |
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611 if self.ui.configbool(b'chgserver', b'skiphash'): |
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612 self._hashstate = None |
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613 self._realaddress = address |
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614 return |
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615 self._hashstate = hashstate.fromui(self.ui) |
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616 self._realaddress = _hashaddress(address, self._hashstate.confighash) |
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|
617 |
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|
618 def _checkextensions(self): |
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619 if not self._hashstate: |
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620 return |
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621 if extensions.notloaded(): |
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622 # one or more extensions failed to load. mtimehash becomes |
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623 # meaningless because we do not know the paths of those extensions. |
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624 # set mtimehash to an illegal hash value to invalidate the server. |
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625 self._hashstate.mtimehash = b'' |
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|
626 |
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627 def _bind(self, sock): |
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628 # use a unique temp address so we can stat the file and do ownership |
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629 # check later |
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630 tempaddress = _tempaddress(self._realaddress) |
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631 util.bindunixsocket(sock, tempaddress) |
29529
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632 self._socketstat = os.stat(tempaddress) |
32236
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|
633 sock.listen(socket.SOMAXCONN) |
29529
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634 # rename will replace the old socket file if exists atomically. the |
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635 # old server will detect ownership change and exit. |
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636 util.rename(tempaddress, self._realaddress) |
28223
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637 |
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638 def _createsymlink(self): |
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639 if self._baseaddress == self._realaddress: |
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640 return |
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641 tempaddress = _tempaddress(self._baseaddress) |
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642 os.symlink(os.path.basename(self._realaddress), tempaddress) |
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643 util.rename(tempaddress, self._baseaddress) |
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644 |
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645 def _issocketowner(self): |
28223
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|
646 try: |
36781
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647 st = os.stat(self._realaddress) |
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648 return ( |
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649 st.st_ino == self._socketstat.st_ino |
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650 and st[stat.ST_MTIME] == self._socketstat[stat.ST_MTIME] |
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651 ) |
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652 except OSError: |
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653 return False |
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|
654 |
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655 def unlinksocket(self, address): |
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656 if not self._issocketowner(): |
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|
657 return |
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|
658 # it is possible to have a race condition here that we may |
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659 # remove another server's socket file. but that's okay |
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660 # since that server will detect and exit automatically and |
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|
661 # the client will start a new server on demand. |
31545 | 662 util.tryunlink(self._realaddress) |
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|
663 |
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664 def shouldexit(self): |
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|
665 if not self._issocketowner(): |
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666 self.ui.log( |
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667 b'chgserver', b'%s is not owned, exiting.\n', self._realaddress |
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|
668 ) |
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669 return True |
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670 if time.time() - self._lastactive > self._idletimeout: |
40828
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commandserver: turn server debug messages into logs
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|
671 self.ui.log(b'chgserver', b'being idle too long. exiting.\n') |
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672 return True |
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673 return False |
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|
674 |
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|
675 def newconnection(self): |
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676 self._lastactive = time.time() |
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|
677 |
40875
e7110f44ee2d
commandserver: pass around option to hook repo instance creation
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diff
changeset
|
678 def createcmdserver(self, repo, conn, fin, fout, prereposetups): |
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679 return chgcmdserver( |
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|
680 self.ui, |
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|
681 repo, |
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682 fin, |
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683 fout, |
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684 conn, |
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685 prereposetups, |
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686 self._hashstate, |
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687 self._baseaddress, |
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|
688 ) |
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|
689 |
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|
690 |
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changeset
|
691 def chgunixservice(ui, repo, opts): |
33860
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demandimport: disable if chg is being used
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changeset
|
692 # CHGINTERNALMARK is set by chg client. It is an indication of things are |
3cfc9070245f
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|
693 # started by chg so other code can do things accordingly, like disabling |
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|
694 # demandimport or detecting chg client started by chg client. When executed |
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|
695 # here, CHGINTERNALMARK is no longer useful and hence dropped to make |
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|
696 # environ cleaner. |
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697 if b'CHGINTERNALMARK' in encoding.environ: |
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|
698 del encoding.environ[b'CHGINTERNALMARK'] |
44261
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|
699 # Python3.7+ "coerces" the LC_CTYPE environment variable to a UTF-8 one if |
04a3ae7aba14
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|
700 # it thinks the current value is "C". This breaks the hash computation and |
04a3ae7aba14
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|
701 # causes chg to restart loop. |
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|
702 if b'CHGORIG_LC_CTYPE' in encoding.environ: |
04a3ae7aba14
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|
703 encoding.environ[b'LC_CTYPE'] = encoding.environ[b'CHGORIG_LC_CTYPE'] |
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|
704 del encoding.environ[b'CHGORIG_LC_CTYPE'] |
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|
705 elif b'CHG_CLEAR_LC_CTYPE' in encoding.environ: |
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|
706 if b'LC_CTYPE' in encoding.environ: |
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|
707 del encoding.environ[b'LC_CTYPE'] |
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|
708 del encoding.environ[b'CHG_CLEAR_LC_CTYPE'] |
30511
1873563e1ede
chgserver: drop CHGINTERNALMARK by chgunixservice()
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parents:
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diff
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|
709 |
29546
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changeset
|
710 if repo: |
30332
318a24b52eeb
spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents:
29841
diff
changeset
|
711 # one chgserver can serve multiple repos. drop repo information |
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|
712 ui.setconfig(b'bundle', b'mainreporoot', b'', b'repo') |
29547
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|
713 h = chgunixservicehandler(ui) |
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|
714 return commandserver.unixforkingservice(ui, repo=None, opts=opts, handler=h) |