Mercurial > hg
annotate mercurial/wireprotov1peer.py @ 43117:8ff1ecfadcd1
cleanup: join string literals that are already on one line
Thanks to Kyle for noticing this and for providing the regular
expression to run on the codebase.
This patch has been reviewed by the test suite and they approved of
it.
# skip-blame: fallout from mass reformatting
Differential Revision: https://phab.mercurial-scm.org/D7028
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Tue, 08 Oct 2019 15:06:18 -0700 |
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1 # wireprotov1peer.py - Client-side functionality for wire protocol version 1. |
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2 # |
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3 # Copyright 2005-2010 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 |
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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 from __future__ import absolute_import |
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9 |
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10 import hashlib |
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11 import sys |
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12 import weakref |
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13 |
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14 from .i18n import _ |
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15 from .node import bin |
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16 from .pycompat import ( |
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17 getattr, |
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18 setattr, |
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19 ) |
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20 from . import ( |
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21 bundle2, |
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22 changegroup as changegroupmod, |
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23 encoding, |
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24 error, |
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25 pushkey as pushkeymod, |
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26 pycompat, |
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27 util, |
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28 wireprototypes, |
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29 ) |
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30 from .interfaces import ( |
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31 repository, |
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32 util as interfaceutil, |
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33 ) |
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34 |
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35 urlreq = util.urlreq |
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36 |
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37 |
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38 def batchable(f): |
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39 '''annotation for batchable methods |
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40 |
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41 Such methods must implement a coroutine as follows: |
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42 |
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43 @batchable |
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44 def sample(self, one, two=None): |
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45 # Build list of encoded arguments suitable for your wire protocol: |
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46 encargs = [('one', encode(one),), ('two', encode(two),)] |
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47 # Create future for injection of encoded result: |
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48 encresref = future() |
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49 # Return encoded arguments and future: |
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50 yield encargs, encresref |
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51 # Assuming the future to be filled with the result from the batched |
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52 # request now. Decode it: |
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53 yield decode(encresref.value) |
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54 |
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55 The decorator returns a function which wraps this coroutine as a plain |
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56 method, but adds the original method as an attribute called "batchable", |
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57 which is used by remotebatch to split the call into separate encoding and |
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58 decoding phases. |
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59 ''' |
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60 |
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61 def plain(*args, **opts): |
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62 batchable = f(*args, **opts) |
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63 encargsorres, encresref = next(batchable) |
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64 if not encresref: |
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65 return encargsorres # a local result in this case |
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66 self = args[0] |
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67 cmd = pycompat.bytesurl(f.__name__) # ensure cmd is ascii bytestr |
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68 encresref.set(self._submitone(cmd, encargsorres)) |
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69 return next(batchable) |
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70 |
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71 setattr(plain, 'batchable', f) |
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72 setattr(plain, '__name__', f.__name__) |
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73 return plain |
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74 |
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75 |
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76 class future(object): |
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77 '''placeholder for a value to be set later''' |
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78 |
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79 def set(self, value): |
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80 if util.safehasattr(self, b'value'): |
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81 raise error.RepoError(b"future is already set") |
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82 self.value = value |
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83 |
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84 |
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85 def encodebatchcmds(req): |
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86 """Return a ``cmds`` argument value for the ``batch`` command.""" |
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87 escapearg = wireprototypes.escapebatcharg |
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88 |
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89 cmds = [] |
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90 for op, argsdict in req: |
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91 # Old servers didn't properly unescape argument names. So prevent |
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92 # the sending of argument names that may not be decoded properly by |
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93 # servers. |
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94 assert all(escapearg(k) == k for k in argsdict) |
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95 |
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96 args = b','.join( |
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97 b'%s=%s' % (escapearg(k), escapearg(v)) |
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98 for k, v in pycompat.iteritems(argsdict) |
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99 ) |
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100 cmds.append(b'%s %s' % (op, args)) |
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101 |
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102 return b';'.join(cmds) |
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103 |
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104 |
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105 class unsentfuture(pycompat.futures.Future): |
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106 """A Future variation to represent an unsent command. |
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107 |
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108 Because we buffer commands and don't submit them immediately, calling |
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109 ``result()`` on an unsent future could deadlock. Futures for buffered |
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110 commands are represented by this type, which wraps ``result()`` to |
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111 call ``sendcommands()``. |
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112 """ |
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113 |
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114 def result(self, timeout=None): |
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115 if self.done(): |
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116 return pycompat.futures.Future.result(self, timeout) |
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117 |
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118 self._peerexecutor.sendcommands() |
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119 |
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120 # This looks like it will infinitely recurse. However, |
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121 # sendcommands() should modify __class__. This call serves as a check |
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122 # on that. |
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123 return self.result(timeout) |
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124 |
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125 |
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126 @interfaceutil.implementer(repository.ipeercommandexecutor) |
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127 class peerexecutor(object): |
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128 def __init__(self, peer): |
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129 self._peer = peer |
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130 self._sent = False |
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131 self._closed = False |
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132 self._calls = [] |
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133 self._futures = weakref.WeakSet() |
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134 self._responseexecutor = None |
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135 self._responsef = None |
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136 |
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137 def __enter__(self): |
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138 return self |
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139 |
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140 def __exit__(self, exctype, excvalee, exctb): |
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141 self.close() |
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142 |
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143 def callcommand(self, command, args): |
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144 if self._sent: |
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145 raise error.ProgrammingError( |
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146 b'callcommand() cannot be used after commands are sent' |
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147 ) |
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148 |
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149 if self._closed: |
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150 raise error.ProgrammingError( |
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151 b'callcommand() cannot be used after close()' |
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152 ) |
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153 |
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154 # Commands are dispatched through methods on the peer. |
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155 fn = getattr(self._peer, pycompat.sysstr(command), None) |
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156 |
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157 if not fn: |
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158 raise error.ProgrammingError( |
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159 b'cannot call command %s: method of same name not available ' |
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160 b'on peer' % command |
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161 ) |
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162 |
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163 # Commands are either batchable or they aren't. If a command |
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164 # isn't batchable, we send it immediately because the executor |
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165 # can no longer accept new commands after a non-batchable command. |
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166 # If a command is batchable, we queue it for later. But we have |
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167 # to account for the case of a non-batchable command arriving after |
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168 # a batchable one and refuse to service it. |
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169 |
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170 def addcall(): |
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171 f = pycompat.futures.Future() |
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172 self._futures.add(f) |
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173 self._calls.append((command, args, fn, f)) |
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174 return f |
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175 |
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176 if getattr(fn, 'batchable', False): |
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177 f = addcall() |
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178 |
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179 # But since we don't issue it immediately, we wrap its result() |
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180 # to trigger sending so we avoid deadlocks. |
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181 f.__class__ = unsentfuture |
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182 f._peerexecutor = self |
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183 else: |
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184 if self._calls: |
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185 raise error.ProgrammingError( |
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186 b'%s is not batchable and cannot be called on a command ' |
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187 b'executor along with other commands' % command |
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188 ) |
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189 |
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190 f = addcall() |
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191 |
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192 # Non-batchable commands can never coexist with another command |
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193 # in this executor. So send the command immediately. |
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194 self.sendcommands() |
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195 |
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196 return f |
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197 |
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198 def sendcommands(self): |
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199 if self._sent: |
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200 return |
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201 |
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202 if not self._calls: |
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203 return |
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204 |
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205 self._sent = True |
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206 |
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207 # Unhack any future types so caller seens a clean type and to break |
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208 # cycle between us and futures. |
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209 for f in self._futures: |
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210 if isinstance(f, unsentfuture): |
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211 f.__class__ = pycompat.futures.Future |
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212 f._peerexecutor = None |
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213 |
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214 calls = self._calls |
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215 # Mainly to destroy references to futures. |
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216 self._calls = None |
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217 |
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218 # Simple case of a single command. We call it synchronously. |
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219 if len(calls) == 1: |
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220 command, args, fn, f = calls[0] |
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221 |
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222 # Future was cancelled. Ignore it. |
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223 if not f.set_running_or_notify_cancel(): |
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224 return |
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225 |
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226 try: |
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227 result = fn(**pycompat.strkwargs(args)) |
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228 except Exception: |
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229 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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230 else: |
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231 f.set_result(result) |
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232 |
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233 return |
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234 |
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235 # Batch commands are a bit harder. First, we have to deal with the |
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236 # @batchable coroutine. That's a bit annoying. Furthermore, we also |
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237 # need to preserve streaming. i.e. it should be possible for the |
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238 # futures to resolve as data is coming in off the wire without having |
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239 # to wait for the final byte of the final response. We do this by |
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240 # spinning up a thread to read the responses. |
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241 |
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242 requests = [] |
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243 states = [] |
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244 |
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245 for command, args, fn, f in calls: |
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246 # Future was cancelled. Ignore it. |
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247 if not f.set_running_or_notify_cancel(): |
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248 continue |
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249 |
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250 try: |
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251 batchable = fn.batchable( |
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252 fn.__self__, **pycompat.strkwargs(args) |
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253 ) |
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254 except Exception: |
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255 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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256 return |
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257 |
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258 # Encoded arguments and future holding remote result. |
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259 try: |
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260 encargsorres, fremote = next(batchable) |
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261 except Exception: |
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262 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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263 return |
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264 |
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265 if not fremote: |
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266 f.set_result(encargsorres) |
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267 else: |
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268 requests.append((command, encargsorres)) |
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269 states.append((command, f, batchable, fremote)) |
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270 |
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271 if not requests: |
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272 return |
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273 |
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274 # This will emit responses in order they were executed. |
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275 wireresults = self._peer._submitbatch(requests) |
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276 |
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277 # The use of a thread pool executor here is a bit weird for something |
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278 # that only spins up a single thread. However, thread management is |
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279 # hard and it is easy to encounter race conditions, deadlocks, etc. |
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280 # concurrent.futures already solves these problems and its thread pool |
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281 # executor has minimal overhead. So we use it. |
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282 self._responseexecutor = pycompat.futures.ThreadPoolExecutor(1) |
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283 self._responsef = self._responseexecutor.submit( |
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284 self._readbatchresponse, states, wireresults |
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285 ) |
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286 |
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287 def close(self): |
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288 self.sendcommands() |
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289 |
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290 if self._closed: |
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291 return |
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292 |
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293 self._closed = True |
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294 |
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295 if not self._responsef: |
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296 return |
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297 |
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298 # We need to wait on our in-flight response and then shut down the |
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299 # executor once we have a result. |
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300 try: |
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301 self._responsef.result() |
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302 finally: |
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303 self._responseexecutor.shutdown(wait=True) |
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304 self._responsef = None |
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305 self._responseexecutor = None |
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306 |
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307 # If any of our futures are still in progress, mark them as |
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308 # errored. Otherwise a result() could wait indefinitely. |
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309 for f in self._futures: |
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310 if not f.done(): |
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311 f.set_exception( |
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312 error.ResponseError( |
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313 _(b'unfulfilled batch command response') |
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314 ) |
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315 ) |
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316 |
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317 self._futures = None |
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318 |
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319 def _readbatchresponse(self, states, wireresults): |
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320 # Executes in a thread to read data off the wire. |
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321 |
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322 for command, f, batchable, fremote in states: |
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323 # Grab raw result off the wire and teach the internal future |
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324 # about it. |
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325 remoteresult = next(wireresults) |
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326 fremote.set(remoteresult) |
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327 |
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328 # And ask the coroutine to decode that value. |
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329 try: |
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330 result = next(batchable) |
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331 except Exception: |
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332 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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333 else: |
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334 f.set_result(result) |
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335 |
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336 |
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337 @interfaceutil.implementer( |
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338 repository.ipeercommands, repository.ipeerlegacycommands |
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339 ) |
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340 class wirepeer(repository.peer): |
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341 """Client-side interface for communicating with a peer repository. |
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342 |
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343 Methods commonly call wire protocol commands of the same name. |
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344 |
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345 See also httppeer.py and sshpeer.py for protocol-specific |
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346 implementations of this interface. |
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347 """ |
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348 |
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349 def commandexecutor(self): |
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350 return peerexecutor(self) |
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351 |
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parents:
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diff
changeset
|
352 # Begin of ipeercommands interface. |
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wireproto: add batching support to wirerepository
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parents:
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diff
changeset
|
353 |
37649
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wireproto: properly call clonebundles command
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parents:
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diff
changeset
|
354 def clonebundles(self): |
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355 self.requirecap(b'clonebundles', _(b'clone bundles')) |
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parents:
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changeset
|
356 return self._call(b'clonebundles') |
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parents:
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diff
changeset
|
357 |
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changeset
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358 @batchable |
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parents:
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diff
changeset
|
359 def lookup(self, key): |
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360 self.requirecap(b'lookup', _(b'look up remote revision')) |
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parents:
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changeset
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361 f = future() |
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|
362 yield {b'key': encoding.fromlocal(key)}, f |
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parents:
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changeset
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363 d = f.value |
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parents:
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diff
changeset
|
364 success, data = d[:-1].split(b" ", 1) |
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parents:
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diff
changeset
|
365 if int(success): |
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wireproto: make a number of commands batchable
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parents:
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diff
changeset
|
366 yield bin(data) |
34062
6c6169f71b8d
wireproto: do not abort after successful lookup
Kyle Lippincott <spectral@google.com>
parents:
33806
diff
changeset
|
367 else: |
6c6169f71b8d
wireproto: do not abort after successful lookup
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parents:
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diff
changeset
|
368 self._abort(error.RepoError(data)) |
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parents:
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diff
changeset
|
369 |
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parents:
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changeset
|
370 @batchable |
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parents:
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diff
changeset
|
371 def heads(self): |
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parents:
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changeset
|
372 f = future() |
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wireproto: make a number of commands batchable
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parents:
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diff
changeset
|
373 yield {}, f |
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wireproto: make a number of commands batchable
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parents:
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diff
changeset
|
374 d = f.value |
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parents:
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diff
changeset
|
375 try: |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
376 yield wireprototypes.decodelist(d[:-1]) |
13726
378522bdc059
wireproto: avoid naked excepts
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parents:
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diff
changeset
|
377 except ValueError: |
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parents:
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diff
changeset
|
378 self._abort(error.ResponseError(_(b"unexpected response:"), d)) |
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parents:
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changeset
|
379 |
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parents:
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diff
changeset
|
380 @batchable |
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wireproto: add known([id]) function
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parents:
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diff
changeset
|
381 def known(self, nodes): |
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parents:
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diff
changeset
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382 f = future() |
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diff
changeset
|
383 yield {b'nodes': wireprototypes.encodelist(nodes)}, f |
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parents:
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diff
changeset
|
384 d = f.value |
13723
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wireproto: add known([id]) function
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parents:
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diff
changeset
|
385 try: |
38328
aa9dd805234d
py3: fix loop over byte string in wireprotov1peer
Yuya Nishihara <yuya@tcha.org>
parents:
37810
diff
changeset
|
386 yield [bool(int(b)) for b in pycompat.iterbytestr(d)] |
13726
378522bdc059
wireproto: avoid naked excepts
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parents:
13723
diff
changeset
|
387 except ValueError: |
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parents:
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diff
changeset
|
388 self._abort(error.ResponseError(_(b"unexpected response:"), d)) |
13723
e615765fdcc7
wireproto: add known([id]) function
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parents:
13722
diff
changeset
|
389 |
14623
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wireproto: make a number of commands batchable
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parents:
14622
diff
changeset
|
390 @batchable |
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parents:
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diff
changeset
|
391 def branchmap(self): |
14623
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wireproto: make a number of commands batchable
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parents:
14622
diff
changeset
|
392 f = future() |
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wireproto: make a number of commands batchable
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parents:
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diff
changeset
|
393 yield {}, f |
e7c9fdbbb902
wireproto: make a number of commands batchable
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parents:
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diff
changeset
|
394 d = f.value |
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parents:
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diff
changeset
|
395 try: |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
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parents:
11585
diff
changeset
|
396 branchmap = {} |
ddaaaa23bb8f
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parents:
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diff
changeset
|
397 for branchpart in d.splitlines(): |
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formatting: byteify all mercurial/ and hgext/ string literals
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parents:
43076
diff
changeset
|
398 branchname, branchheads = branchpart.split(b' ', 1) |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28666
diff
changeset
|
399 branchname = encoding.tolocal(urlreq.unquote(branchname)) |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
400 branchheads = wireprototypes.decodelist(branchheads) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
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parents:
11585
diff
changeset
|
401 branchmap[branchname] = branchheads |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
402 yield branchmap |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
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parents:
11585
diff
changeset
|
403 except TypeError: |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
404 self._abort(error.ResponseError(_(b"unexpected response:"), d)) |
11586
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protocol: move basic ssh client commands to wirerepository
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parents:
11585
diff
changeset
|
405 |
33806
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
406 @batchable |
dedab036215d
wireproto: use new peer interface
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parents:
33767
diff
changeset
|
407 def listkeys(self, namespace): |
43077
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parents:
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diff
changeset
|
408 if not self.capable(b'pushkey'): |
33806
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
409 yield {}, None |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
410 f = future() |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
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parents:
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diff
changeset
|
411 self.ui.debug(b'preparing listkeys for "%s"\n' % namespace) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
412 yield {b'namespace': encoding.fromlocal(namespace)}, f |
33806
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
413 d = f.value |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42814
diff
changeset
|
414 self.ui.debug( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
415 b'received listkey for "%s": %i bytes\n' % (namespace, len(d)) |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42814
diff
changeset
|
416 ) |
33806
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
417 yield pushkeymod.decodekeys(d) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
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parents:
11585
diff
changeset
|
418 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
419 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
420 def pushkey(self, namespace, key, old, new): |
43077
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parents:
43076
diff
changeset
|
421 if not self.capable(b'pushkey'): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
422 yield False, None |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
423 f = future() |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
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parents:
43076
diff
changeset
|
424 self.ui.debug(b'preparing pushkey for "%s:%s"\n' % (namespace, key)) |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42814
diff
changeset
|
425 yield { |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
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parents:
43076
diff
changeset
|
426 b'namespace': encoding.fromlocal(namespace), |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
427 b'key': encoding.fromlocal(key), |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
428 b'old': encoding.fromlocal(old), |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
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parents:
43076
diff
changeset
|
429 b'new': encoding.fromlocal(new), |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42814
diff
changeset
|
430 }, f |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
431 d = f.value |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
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parents:
43076
diff
changeset
|
432 d, output = d.split(b'\n', 1) |
13450
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
433 try: |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
434 d = bool(int(d)) |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
435 except ValueError: |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
436 raise error.ResponseError( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
437 _(b'push failed (unexpected response):'), d |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42814
diff
changeset
|
438 ) |
15652
ca6accdad79c
wireproto: handle other server output in pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15585
diff
changeset
|
439 for l in output.splitlines(True): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
440 self.ui.status(_(b'remote: '), l) |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
441 yield d |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
442 |
11588
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
443 def stream_out(self): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
444 return self._callstream(b'stream_out') |
11588
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
445 |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
446 def getbundle(self, source, **kwargs): |
34739
b880cc11da5d
wireproto: bounce kwargs to/from bytes/str as needed
Augie Fackler <augie@google.com>
parents:
34731
diff
changeset
|
447 kwargs = pycompat.byteskwargs(kwargs) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
448 self.requirecap(b'getbundle', _(b'look up remote changes')) |
13741
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
449 opts = {} |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
450 bundlecaps = kwargs.get(b'bundlecaps') or set() |
43106
d783f945a701
py3: finish porting iteritems() to pycompat and remove source transformer
Gregory Szorc <gregory.szorc@gmail.com>
parents:
43089
diff
changeset
|
451 for key, value in pycompat.iteritems(kwargs): |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
452 if value is None: |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
453 continue |
37613
96d735601ca1
wireproto: move gboptsmap to wireprototypes and rename (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37612
diff
changeset
|
454 keytype = wireprototypes.GETBUNDLE_ARGUMENTS.get(key) |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
455 if keytype is None: |
34730
6be264009841
wireproto: use a proper exception instead of `assert False`
Augie Fackler <augie@google.com>
parents:
34729
diff
changeset
|
456 raise error.ProgrammingError( |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
457 b'Unexpectedly None keytype for key %s' % key |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42814
diff
changeset
|
458 ) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
459 elif keytype == b'nodes': |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
460 value = wireprototypes.encodelist(value) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
461 elif keytype == b'csv': |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
462 value = b','.join(value) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
463 elif keytype == b'scsv': |
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464 value = b','.join(sorted(value)) |
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465 elif keytype == b'boolean': |
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466 value = b'%i' % bool(value) |
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467 elif keytype != b'plain': |
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468 raise KeyError(b'unknown getbundle option type %s' % keytype) |
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469 opts[key] = value |
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470 f = self._callcompressable(b"getbundle", **pycompat.strkwargs(opts)) |
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471 if any((cap.startswith(b'HG2') for cap in bundlecaps)): |
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472 return bundle2.getunbundler(self.ui, f) |
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473 else: |
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474 return changegroupmod.cg1unpacker(f, b'UN') |
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475 |
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476 def unbundle(self, bundle, heads, url): |
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477 '''Send cg (a readable file-like object representing the |
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478 changegroup to push, typically a chunkbuffer object) to the |
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479 remote server as a bundle. |
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480 |
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481 When pushing a bundle10 stream, return an integer indicating the |
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482 result of the push (see changegroup.apply()). |
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483 |
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484 When pushing a bundle20 stream, return a bundle20 stream. |
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485 |
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486 `url` is the url the client thinks it's pushing to, which is |
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487 visible to hooks. |
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488 ''' |
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489 |
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490 if heads != [b'force'] and self.capable(b'unbundlehash'): |
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491 heads = wireprototypes.encodelist( |
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492 [b'hashed', hashlib.sha1(b''.join(sorted(heads))).digest()] |
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493 ) |
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494 else: |
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495 heads = wireprototypes.encodelist(heads) |
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496 |
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497 if util.safehasattr(bundle, b'deltaheader'): |
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498 # this a bundle10, do the old style call sequence |
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499 ret, output = self._callpush(b"unbundle", bundle, heads=heads) |
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500 if ret == b"": |
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501 raise error.ResponseError(_(b'push failed:'), output) |
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502 try: |
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503 ret = int(ret) |
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504 except ValueError: |
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505 raise error.ResponseError( |
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506 _(b'push failed (unexpected response):'), ret |
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507 ) |
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508 |
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509 for l in output.splitlines(True): |
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510 self.ui.status(_(b'remote: '), l) |
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511 else: |
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512 # bundle2 push. Send a stream, fetch a stream. |
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513 stream = self._calltwowaystream(b'unbundle', bundle, heads=heads) |
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514 ret = bundle2.getunbundler(self.ui, stream) |
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515 return ret |
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|
516 |
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517 # End of ipeercommands interface. |
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518 |
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519 # Begin of ipeerlegacycommands interface. |
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520 |
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521 def branches(self, nodes): |
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522 n = wireprototypes.encodelist(nodes) |
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523 d = self._call(b"branches", nodes=n) |
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524 try: |
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525 br = [tuple(wireprototypes.decodelist(b)) for b in d.splitlines()] |
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526 return br |
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527 except ValueError: |
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528 self._abort(error.ResponseError(_(b"unexpected response:"), d)) |
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|
529 |
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|
530 def between(self, pairs): |
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|
531 batch = 8 # avoid giant requests |
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|
532 r = [] |
38783
e7aa113b14f7
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|
533 for i in pycompat.xrange(0, len(pairs), batch): |
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534 n = b" ".join( |
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|
535 [ |
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|
536 wireprototypes.encodelist(p, b'-') |
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537 for p in pairs[i : i + batch] |
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|
538 ] |
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|
539 ) |
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|
540 d = self._call(b"between", pairs=n) |
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|
541 try: |
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|
542 r.extend( |
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|
543 l and wireprototypes.decodelist(l) or [] |
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|
544 for l in d.splitlines() |
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|
545 ) |
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546 except ValueError: |
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547 self._abort(error.ResponseError(_(b"unexpected response:"), d)) |
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|
548 return r |
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|
549 |
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|
550 def changegroup(self, nodes, source): |
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551 n = wireprototypes.encodelist(nodes) |
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552 f = self._callcompressable(b"changegroup", roots=n) |
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553 return changegroupmod.cg1unpacker(f, b'UN') |
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|
554 |
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555 def changegroupsubset(self, bases, heads, source): |
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556 self.requirecap(b'changegroupsubset', _(b'look up remote changes')) |
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557 bases = wireprototypes.encodelist(bases) |
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558 heads = wireprototypes.encodelist(heads) |
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559 f = self._callcompressable( |
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560 b"changegroupsubset", bases=bases, heads=heads |
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561 ) |
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562 return changegroupmod.cg1unpacker(f, b'UN') |
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563 |
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564 # End of ipeerlegacycommands interface. |
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565 |
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566 def _submitbatch(self, req): |
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567 """run batch request <req> on the server |
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568 |
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569 Returns an iterator of the raw responses from the server. |
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570 """ |
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|
571 ui = self.ui |
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572 if ui.debugflag and ui.configbool(b'devel', b'debug.peer-request'): |
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573 ui.debug(b'devel-peer-request: batched-content\n') |
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|
574 for op, args in req: |
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575 msg = b'devel-peer-request: - %s (%d arguments)\n' |
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Boris Feld <boris.feld@octobus.net>
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576 ui.debug(msg % (op, len(args))) |
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577 |
37612
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wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
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578 unescapearg = wireprototypes.unescapebatcharg |
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579 |
43077
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formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
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580 rsp = self._callstream(b"batch", cmds=encodebatchcmds(req)) |
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581 chunk = rsp.read(1024) |
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582 work = [chunk] |
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583 while chunk: |
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584 while b';' not in chunk and chunk: |
33806
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585 chunk = rsp.read(1024) |
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586 work.append(chunk) |
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587 merged = b''.join(work) |
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588 while b';' in merged: |
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589 one, merged = merged.split(b';', 1) |
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wireproto: use new peer interface
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590 yield unescapearg(one) |
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591 chunk = rsp.read(1024) |
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592 work = [merged, chunk] |
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593 yield unescapearg(b''.join(work)) |
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wireproto: use new peer interface
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594 |
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wireproto: use new peer interface
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595 def _submitone(self, op, args): |
34739
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wireproto: bounce kwargs to/from bytes/str as needed
Augie Fackler <augie@google.com>
parents:
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596 return self._call(op, **pycompat.strkwargs(args)) |
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597 |
14048
58e58406ed19
wireproto: add test for new optional arg missing on server
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13942
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598 def debugwireargs(self, one, two, three=None, four=None, five=None): |
13720
9c4e04fe267e
debug: add debugwireargs to test argument passing over the wire
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parents:
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599 # don't pass optional arguments left at their default value |
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600 opts = {} |
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parents:
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601 if three is not None: |
35374
7d2292416046
py3: handle keyword arguments correctly in wireproto.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
35267
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602 opts[r'three'] = three |
13720
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debug: add debugwireargs to test argument passing over the wire
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603 if four is not None: |
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py3: handle keyword arguments correctly in wireproto.py
Pulkit Goyal <7895pulkit@gmail.com>
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604 opts[r'four'] = four |
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605 return self._call(b'debugwireargs', one=one, two=two, **opts) |
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606 |
20904
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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parents:
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607 def _call(self, cmd, **args): |
3dbe6bcd7f62
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608 """execute <cmd> on the server |
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609 |
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610 The command is expected to return a simple string. |
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611 |
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612 returns the server reply as a string.""" |
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613 raise NotImplementedError() |
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614 |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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615 def _callstream(self, cmd, **args): |
3dbe6bcd7f62
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616 """execute <cmd> on the server |
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617 |
28435
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wireproto: document quirk of _callstream between http and ssh
Augie Fackler <augie@google.com>
parents:
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618 The command is expected to return a stream. Note that if the |
176736afa886
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Augie Fackler <augie@google.com>
parents:
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619 command doesn't return a stream, _callstream behaves |
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Augie Fackler <augie@google.com>
parents:
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620 differently for ssh and http peers. |
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621 |
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622 returns the server reply as a file like object. |
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623 """ |
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624 raise NotImplementedError() |
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625 |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
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626 def _callcompressable(self, cmd, **args): |
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627 """execute <cmd> on the server |
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628 |
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wireproto: drop the _decompress method in favor a new call type
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629 The command is expected to return a stream. |
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630 |
21024
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spelling: fixes from spell checker
Mads Kiilerich <madski@unity3d.com>
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631 The stream may have been compressed in some implementations. This |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
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632 function takes care of the decompression. This is the only difference |
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633 with _callstream. |
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parents:
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634 |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
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parents:
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635 returns the server reply as a file like object. |
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parents:
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636 """ |
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wireproto: drop the _decompress method in favor a new call type
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20904
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637 raise NotImplementedError() |
167047ba3cfa
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parents:
20904
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|
638 |
20904
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639 def _callpush(self, cmd, fp, **args): |
3dbe6bcd7f62
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640 """execute a <cmd> on server |
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|
641 |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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diff
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|
642 The command is expected to be related to a push. Push has a special |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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643 return method. |
3dbe6bcd7f62
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|
644 |
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diff
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|
645 returns the server reply as a (ret, output) tuple. ret is either |
3dbe6bcd7f62
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parents:
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diff
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|
646 empty (error) or a stringified int. |
3dbe6bcd7f62
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647 """ |
3dbe6bcd7f62
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parents:
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648 raise NotImplementedError() |
3dbe6bcd7f62
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diff
changeset
|
649 |
21072
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
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parents:
21069
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changeset
|
650 def _calltwowaystream(self, cmd, fp, **args): |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
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21069
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|
651 """execute <cmd> on server |
0879352d67d8
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|
652 |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
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parents:
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|
653 The command will send a stream to the server and get a stream in reply. |
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654 """ |
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wireproto: add a _calltwowaystream method on wirepeer
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parents:
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655 raise NotImplementedError() |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
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parents:
21069
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changeset
|
656 |
20904
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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|
657 def _abort(self, exception): |
3dbe6bcd7f62
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parents:
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diff
changeset
|
658 """clearly abort the wire protocol connection and raise the exception |
3dbe6bcd7f62
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|
659 """ |
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|
660 raise NotImplementedError() |