Mercurial > hg
annotate mercurial/sshpeer.py @ 25755:72d395e399c1
cmdutil: remove useless dirstate.normallookup() invocation in revert()
Explicit 'dirstate.normallookup()' invocation in 'revert()' is useless
now, because previous patch fixed the relevant issue by writing
in-memory dirstate changes out at the end of dirty check.
'dirstate.normallookup()' invocation was introduced by 21b33f0460e0 to
avoid occasional test failure (see issue4583 for detail). This is
partial backout of it (added tests are still left).
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Wed, 08 Jul 2015 17:01:09 +0900 |
parents | 4642f0b803ae |
children | de7a3893ee65 |
rev | line source |
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1 # sshpeer.py - ssh repository proxy class for mercurial |
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2 # |
2859 | 3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import re |
3891 | 9 from i18n import _ |
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10 import util, error, wireproto |
60 | 11 |
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12 class remotelock(object): |
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13 def __init__(self, repo): |
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14 self.repo = repo |
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15 def release(self): |
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16 self.repo.unlock() |
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17 self.repo = None |
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18 def __del__(self): |
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19 if self.repo: |
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20 self.release() |
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21 |
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22 def _serverquote(s): |
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23 if not s: |
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24 return s |
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25 '''quote a string for the remote shell ... which we assume is sh''' |
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26 if re.match('[a-zA-Z0-9@%_+=:,./-]*$', s): |
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27 return s |
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28 return "'%s'" % s.replace("'", "'\\''") |
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29 |
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30 def _forwardoutput(ui, pipe): |
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31 """display all data currently available on pipe as remote output. |
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32 |
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33 This is non blocking.""" |
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34 s = util.readpipe(pipe) |
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35 if s: |
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36 for l in s.splitlines(): |
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37 ui.status(_("remote: "), l, '\n') |
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38 |
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39 class doublepipe(object): |
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40 """Operate a side-channel pipe in addition of a main one |
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41 |
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42 The side-channel pipe contains server output to be forwarded to the user |
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43 input. The double pipe will behave as the "main" pipe, but will ensure the |
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44 content of the "side" pipe is properly processed while we wait for blocking |
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45 call on the "main" pipe. |
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46 |
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47 If large amounts of data are read from "main", the forward will cease after |
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48 the first bytes start to appear. This simplifies the implementation |
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49 without affecting actual output of sshpeer too much as we rarely issue |
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50 large read for data not yet emitted by the server. |
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51 |
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52 The main pipe is expected to be a 'bufferedinputpipe' from the util module |
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53 that handle all the os specific bites. This class lives in this module |
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54 because it focus on behavior specifig to the ssh protocol.""" |
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55 |
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56 def __init__(self, ui, main, side): |
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57 self._ui = ui |
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58 self._main = main |
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59 self._side = side |
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60 |
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61 def _wait(self): |
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62 """wait until some data are available on main or side |
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63 |
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64 return a pair of boolean (ismainready, issideready) |
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65 |
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66 (This will only wait for data if the setup is supported by `util.poll`) |
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67 """ |
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68 if getattr(self._main, 'hasbuffer', False): # getattr for classic pipe |
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69 return (True, True) # main has data, assume side is worth poking at. |
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70 fds = [self._main.fileno(), self._side.fileno()] |
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71 try: |
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72 act = util.poll(fds) |
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73 except NotImplementedError: |
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74 # non supported yet case, assume all have data. |
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75 act = fds |
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76 return (self._main.fileno() in act, self._side.fileno() in act) |
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77 |
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78 def write(self, data): |
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79 return self._call('write', data) |
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80 |
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81 def read(self, size): |
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82 return self._call('read', size) |
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83 |
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84 def readline(self): |
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85 return self._call('readline') |
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86 |
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87 def _call(self, methname, data=None): |
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88 """call <methname> on "main", forward output of "side" while blocking |
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89 """ |
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90 # data can be '' or 0 |
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91 if (data is not None and not data) or self._main.closed: |
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92 _forwardoutput(self._ui, self._side) |
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93 return '' |
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94 while True: |
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95 mainready, sideready = self._wait() |
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96 if sideready: |
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97 _forwardoutput(self._ui, self._side) |
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98 if mainready: |
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99 meth = getattr(self._main, methname) |
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100 if data is None: |
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101 return meth() |
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102 else: |
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103 return meth(data) |
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104 |
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105 def close(self): |
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106 return self._main.close() |
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107 |
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108 def flush(self): |
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109 return self._main.flush() |
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110 |
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111 class sshpeer(wireproto.wirepeer): |
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112 def __init__(self, ui, path, create=False): |
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113 self._url = path |
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114 self.ui = ui |
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115 self.pipeo = self.pipei = self.pipee = None |
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116 |
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117 u = util.url(path, parsequery=False, parsefragment=False) |
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118 if u.scheme != 'ssh' or not u.host or u.path is None: |
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119 self._abort(error.RepoError(_("couldn't parse location %s") % path)) |
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120 |
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121 self.user = u.user |
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122 if u.passwd is not None: |
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123 self._abort(error.RepoError(_("password in URL not supported"))) |
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124 self.host = u.host |
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125 self.port = u.port |
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126 self.path = u.path or "." |
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127 |
961 | 128 sshcmd = self.ui.config("ui", "ssh", "ssh") |
129 remotecmd = self.ui.config("ui", "remotecmd", "hg") | |
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130 |
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131 args = util.sshargs(sshcmd, |
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132 _serverquote(self.host), |
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133 _serverquote(self.user), |
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134 _serverquote(self.port)) |
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135 |
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136 if create: |
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137 cmd = '%s %s %s' % (sshcmd, args, |
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138 util.shellquote("%s init %s" % |
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139 (_serverquote(remotecmd), _serverquote(self.path)))) |
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140 ui.debug('running %s\n' % cmd) |
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141 res = ui.system(cmd) |
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142 if res != 0: |
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143 self._abort(error.RepoError(_("could not create remote repo"))) |
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144 |
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145 self._validaterepo(sshcmd, args, remotecmd) |
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146 |
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147 def url(self): |
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148 return self._url |
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149 |
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150 def _validaterepo(self, sshcmd, args, remotecmd): |
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151 # cleanup up previous run |
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152 self.cleanup() |
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153 |
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154 cmd = '%s %s %s' % (sshcmd, args, |
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155 util.shellquote("%s -R %s serve --stdio" % |
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156 (_serverquote(remotecmd), _serverquote(self.path)))) |
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157 self.ui.debug('running %s\n' % cmd) |
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158 cmd = util.quotecommand(cmd) |
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159 |
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160 # while self.subprocess isn't used, having it allows the subprocess to |
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161 # to clean up correctly later |
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162 # |
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163 # no buffer allow the use of 'select' |
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164 # feel free to remove buffering and select usage when we ultimately |
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165 # move to threading. |
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166 sub = util.popen4(cmd, bufsize=0) |
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167 self.pipeo, self.pipei, self.pipee, self.subprocess = sub |
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168 |
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169 self.pipei = util.bufferedinputpipe(self.pipei) |
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170 self.pipei = doublepipe(self.ui, self.pipei, self.pipee) |
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171 self.pipeo = doublepipe(self.ui, self.pipeo, self.pipee) |
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172 |
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173 # skip any noise generated by remote shell |
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174 self._callstream("hello") |
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175 r = self._callstream("between", pairs=("%s-%s" % ("0"*40, "0"*40))) |
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176 lines = ["", "dummy"] |
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177 max_noise = 500 |
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178 while lines[-1] and max_noise: |
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179 l = r.readline() |
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180 self.readerr() |
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181 if lines[-1] == "1\n" and l == "\n": |
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182 break |
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183 if l: |
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184 self.ui.debug("remote: ", l) |
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185 lines.append(l) |
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186 max_noise -= 1 |
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187 else: |
16683 | 188 self._abort(error.RepoError(_('no suitable response from ' |
189 'remote hg'))) | |
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190 |
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191 self._caps = set() |
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192 for l in reversed(lines): |
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193 if l.startswith("capabilities:"): |
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194 self._caps.update(l[:-1].split(":")[1].split()) |
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195 break |
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196 |
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197 def _capabilities(self): |
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198 return self._caps |
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199 |
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200 def readerr(self): |
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201 _forwardoutput(self.ui, self.pipee) |
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202 |
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203 def _abort(self, exception): |
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204 self.cleanup() |
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205 raise exception |
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206 |
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207 def cleanup(self): |
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208 if self.pipeo is None: |
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209 return |
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210 self.pipeo.close() |
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211 self.pipei.close() |
817 | 212 try: |
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213 # read the error descriptor until EOF |
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214 for l in self.pipee: |
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215 self.ui.status(_("remote: "), l) |
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216 except (IOError, ValueError): |
817 | 217 pass |
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218 self.pipee.close() |
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219 |
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220 __del__ = cleanup |
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221 |
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222 def _callstream(self, cmd, **args): |
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223 self.ui.debug("sending %s command\n" % cmd) |
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224 self.pipeo.write("%s\n" % cmd) |
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225 _func, names = wireproto.commands[cmd] |
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226 keys = names.split() |
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227 wireargs = {} |
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228 for k in keys: |
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229 if k == '*': |
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230 wireargs['*'] = args |
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231 break |
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232 else: |
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233 wireargs[k] = args[k] |
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234 del args[k] |
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235 for k, v in sorted(wireargs.iteritems()): |
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236 self.pipeo.write("%s %d\n" % (k, len(v))) |
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237 if isinstance(v, dict): |
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238 for dk, dv in v.iteritems(): |
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239 self.pipeo.write("%s %d\n" % (dk, len(dv))) |
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240 self.pipeo.write(dv) |
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241 else: |
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242 self.pipeo.write(v) |
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243 self.pipeo.flush() |
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244 |
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245 return self.pipei |
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246 |
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247 def _callcompressable(self, cmd, **args): |
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248 return self._callstream(cmd, **args) |
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249 |
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250 def _call(self, cmd, **args): |
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251 self._callstream(cmd, **args) |
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252 return self._recv() |
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253 |
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254 def _callpush(self, cmd, fp, **args): |
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255 r = self._call(cmd, **args) |
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256 if r: |
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257 return '', r |
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258 while True: |
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259 d = fp.read(4096) |
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260 if not d: |
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261 break |
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262 self._send(d) |
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263 self._send("", flush=True) |
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264 r = self._recv() |
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265 if r: |
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266 return '', r |
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267 return self._recv(), '' |
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268 |
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269 def _calltwowaystream(self, cmd, fp, **args): |
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270 r = self._call(cmd, **args) |
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271 if r: |
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272 # XXX needs to be made better |
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273 raise util.Abort('unexpected remote reply: %s' % r) |
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274 while True: |
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275 d = fp.read(4096) |
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276 if not d: |
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277 break |
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278 self._send(d) |
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279 self._send("", flush=True) |
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280 return self.pipei |
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281 |
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282 def _recv(self): |
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283 l = self.pipei.readline() |
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284 if l == '\n': |
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285 self.readerr() |
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286 msg = _('check previous remote output') |
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287 self._abort(error.OutOfBandError(hint=msg)) |
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288 self.readerr() |
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289 try: |
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290 l = int(l) |
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291 except ValueError: |
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292 self._abort(error.ResponseError(_("unexpected response:"), l)) |
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293 return self.pipei.read(l) |
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294 |
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295 def _send(self, data, flush=False): |
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296 self.pipeo.write("%d\n" % len(data)) |
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297 if data: |
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298 self.pipeo.write(data) |
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299 if flush: |
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300 self.pipeo.flush() |
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301 self.readerr() |
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302 |
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303 def lock(self): |
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304 self._call("lock") |
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305 return remotelock(self) |
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306 |
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307 def unlock(self): |
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308 self._call("unlock") |
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309 |
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310 def addchangegroup(self, cg, source, url, lock=None): |
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311 '''Send a changegroup to the remote server. Return an integer |
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312 similar to unbundle(). DEPRECATED, since it requires locking the |
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313 remote.''' |
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314 d = self._call("addchangegroup") |
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315 if d: |
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316 self._abort(error.RepoError(_("push refused: %s") % d)) |
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317 while True: |
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318 d = cg.read(4096) |
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319 if not d: |
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320 break |
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321 self.pipeo.write(d) |
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322 self.readerr() |
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323 |
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324 self.pipeo.flush() |
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325 |
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326 self.readerr() |
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327 r = self._recv() |
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328 if not r: |
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329 return 1 |
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330 try: |
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331 return int(r) |
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332 except ValueError: |
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333 self._abort(error.ResponseError(_("unexpected response:"), r)) |
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334 |
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335 instance = sshpeer |