Mercurial > hg
annotate mercurial/wireprotov1peer.py @ 37650:62ebfda864de
repository: remove ipeercommands from ipeerbase
AFAICT all callers in core have moved to the commandexecutor
interface for invoking wire protocol commands. Or at least they
aren't using the named methods on ipeercommands to invoke them.
This means we can drop ipeercommands from the ipeerbase interface.
As far as interface based programming goes, it is now illegal to call
an ipeercommands method for issuing wire protocol commands. However,
the methods are still there, so they will still work. At some
point we will want to break that API...
Differential Revision: https://phab.mercurial-scm.org/D3318
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Fri, 13 Apr 2018 11:54:13 -0700 |
parents | a168799687e5 |
children | 1cb54e6193a6 |
rev | line source |
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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 ( |
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16 bin, |
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17 ) |
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18 from .thirdparty.zope import ( |
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19 interface as zi, |
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20 ) |
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21 from . import ( |
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22 bundle2, |
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23 changegroup as changegroupmod, |
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24 encoding, |
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25 error, |
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26 pushkey as pushkeymod, |
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27 pycompat, |
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28 repository, |
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29 util, |
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30 wireprototypes, |
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31 ) |
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32 |
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33 urlreq = util.urlreq |
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34 |
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35 def batchable(f): |
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36 '''annotation for batchable methods |
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37 |
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38 Such methods must implement a coroutine as follows: |
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39 |
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40 @batchable |
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41 def sample(self, one, two=None): |
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42 # Build list of encoded arguments suitable for your wire protocol: |
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43 encargs = [('one', encode(one),), ('two', encode(two),)] |
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44 # Create future for injection of encoded result: |
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45 encresref = future() |
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46 # Return encoded arguments and future: |
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47 yield encargs, encresref |
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48 # Assuming the future to be filled with the result from the batched |
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49 # request now. Decode it: |
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50 yield decode(encresref.value) |
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51 |
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52 The decorator returns a function which wraps this coroutine as a plain |
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53 method, but adds the original method as an attribute called "batchable", |
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54 which is used by remotebatch to split the call into separate encoding and |
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55 decoding phases. |
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56 ''' |
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57 def plain(*args, **opts): |
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58 batchable = f(*args, **opts) |
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59 encargsorres, encresref = next(batchable) |
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60 if not encresref: |
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61 return encargsorres # a local result in this case |
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62 self = args[0] |
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63 cmd = pycompat.bytesurl(f.__name__) # ensure cmd is ascii bytestr |
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64 encresref.set(self._submitone(cmd, encargsorres)) |
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65 return next(batchable) |
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66 setattr(plain, 'batchable', f) |
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67 return plain |
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68 |
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69 class future(object): |
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70 '''placeholder for a value to be set later''' |
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71 def set(self, value): |
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72 if util.safehasattr(self, 'value'): |
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73 raise error.RepoError("future is already set") |
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74 self.value = value |
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75 |
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76 def encodebatchcmds(req): |
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77 """Return a ``cmds`` argument value for the ``batch`` command.""" |
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78 escapearg = wireprototypes.escapebatcharg |
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79 |
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80 cmds = [] |
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81 for op, argsdict in req: |
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82 # Old servers didn't properly unescape argument names. So prevent |
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83 # the sending of argument names that may not be decoded properly by |
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84 # servers. |
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85 assert all(escapearg(k) == k for k in argsdict) |
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86 |
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87 args = ','.join('%s=%s' % (escapearg(k), escapearg(v)) |
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88 for k, v in argsdict.iteritems()) |
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89 cmds.append('%s %s' % (op, args)) |
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90 |
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91 return ';'.join(cmds) |
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92 |
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93 class unsentfuture(pycompat.futures.Future): |
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94 """A Future variation to represent an unsent command. |
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95 |
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96 Because we buffer commands and don't submit them immediately, calling |
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97 ``result()`` on an unsent future could deadlock. Futures for buffered |
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98 commands are represented by this type, which wraps ``result()`` to |
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99 call ``sendcommands()``. |
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100 """ |
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101 |
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102 def result(self, timeout=None): |
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103 if self.done(): |
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104 return pycompat.futures.Future.result(self, timeout) |
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105 |
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106 self._peerexecutor.sendcommands() |
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107 |
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108 # This looks like it will infinitely recurse. However, |
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109 # sendcommands() should modify __class__. This call serves as a check |
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110 # on that. |
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111 return self.result(timeout) |
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112 |
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113 @zi.implementer(repository.ipeercommandexecutor) |
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114 class peerexecutor(object): |
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115 def __init__(self, peer): |
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116 self._peer = peer |
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117 self._sent = False |
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118 self._closed = False |
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119 self._calls = [] |
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120 self._futures = weakref.WeakSet() |
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121 self._responseexecutor = None |
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122 self._responsef = None |
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123 |
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124 def __enter__(self): |
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125 return self |
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126 |
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127 def __exit__(self, exctype, excvalee, exctb): |
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128 self.close() |
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129 |
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130 def callcommand(self, command, args): |
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131 if self._sent: |
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132 raise error.ProgrammingError('callcommand() cannot be used ' |
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133 'after commands are sent') |
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134 |
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135 if self._closed: |
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136 raise error.ProgrammingError('callcommand() cannot be used ' |
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137 'after close()') |
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138 |
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139 # Commands are dispatched through methods on the peer. |
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140 fn = getattr(self._peer, pycompat.sysstr(command), None) |
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141 |
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142 if not fn: |
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143 raise error.ProgrammingError( |
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144 'cannot call command %s: method of same name not available ' |
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145 'on peer' % command) |
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146 |
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147 # Commands are either batchable or they aren't. If a command |
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148 # isn't batchable, we send it immediately because the executor |
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149 # can no longer accept new commands after a non-batchable command. |
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150 # If a command is batchable, we queue it for later. But we have |
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151 # to account for the case of a non-batchable command arriving after |
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152 # a batchable one and refuse to service it. |
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153 |
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154 def addcall(): |
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155 f = pycompat.futures.Future() |
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156 self._futures.add(f) |
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157 self._calls.append((command, args, fn, f)) |
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158 return f |
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159 |
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160 if getattr(fn, 'batchable', False): |
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161 f = addcall() |
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162 |
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163 # But since we don't issue it immediately, we wrap its result() |
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164 # to trigger sending so we avoid deadlocks. |
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165 f.__class__ = unsentfuture |
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166 f._peerexecutor = self |
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167 else: |
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168 if self._calls: |
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169 raise error.ProgrammingError( |
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170 '%s is not batchable and cannot be called on a command ' |
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171 'executor along with other commands' % command) |
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172 |
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173 f = addcall() |
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174 |
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175 # Non-batchable commands can never coexist with another command |
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176 # in this executor. So send the command immediately. |
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177 self.sendcommands() |
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178 |
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179 return f |
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180 |
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181 def sendcommands(self): |
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182 if self._sent: |
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183 return |
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184 |
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185 if not self._calls: |
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186 return |
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187 |
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188 self._sent = True |
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189 |
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190 # Unhack any future types so caller seens a clean type and to break |
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191 # cycle between us and futures. |
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192 for f in self._futures: |
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193 if isinstance(f, unsentfuture): |
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194 f.__class__ = pycompat.futures.Future |
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195 f._peerexecutor = None |
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196 |
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197 calls = self._calls |
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198 # Mainly to destroy references to futures. |
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199 self._calls = None |
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200 |
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201 # Simple case of a single command. We call it synchronously. |
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202 if len(calls) == 1: |
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203 command, args, fn, f = calls[0] |
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204 |
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205 # Future was cancelled. Ignore it. |
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206 if not f.set_running_or_notify_cancel(): |
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207 return |
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208 |
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209 try: |
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210 result = fn(**pycompat.strkwargs(args)) |
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211 except Exception: |
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212 f.set_exception_info(*sys.exc_info()[1:]) |
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213 else: |
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214 f.set_result(result) |
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215 |
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216 return |
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217 |
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218 # Batch commands are a bit harder. First, we have to deal with the |
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219 # @batchable coroutine. That's a bit annoying. Furthermore, we also |
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220 # need to preserve streaming. i.e. it should be possible for the |
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221 # futures to resolve as data is coming in off the wire without having |
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222 # to wait for the final byte of the final response. We do this by |
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223 # spinning up a thread to read the responses. |
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224 |
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225 requests = [] |
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226 states = [] |
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227 |
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228 for command, args, fn, f in calls: |
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229 # Future was cancelled. Ignore it. |
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230 if not f.set_running_or_notify_cancel(): |
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231 continue |
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232 |
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233 try: |
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234 batchable = fn.batchable(fn.__self__, |
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235 **pycompat.strkwargs(args)) |
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236 except Exception: |
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237 f.set_exception_info(*sys.exc_info()[1:]) |
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238 return |
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239 |
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240 # Encoded arguments and future holding remote result. |
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241 try: |
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242 encodedargs, fremote = next(batchable) |
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243 except Exception: |
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244 f.set_exception_info(*sys.exc_info()[1:]) |
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245 return |
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246 |
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247 requests.append((command, encodedargs)) |
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248 states.append((command, f, batchable, fremote)) |
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249 |
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250 if not requests: |
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251 return |
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252 |
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253 # This will emit responses in order they were executed. |
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254 wireresults = self._peer._submitbatch(requests) |
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255 |
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256 # The use of a thread pool executor here is a bit weird for something |
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257 # that only spins up a single thread. However, thread management is |
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258 # hard and it is easy to encounter race conditions, deadlocks, etc. |
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259 # concurrent.futures already solves these problems and its thread pool |
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260 # executor has minimal overhead. So we use it. |
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261 self._responseexecutor = pycompat.futures.ThreadPoolExecutor(1) |
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262 self._responsef = self._responseexecutor.submit(self._readbatchresponse, |
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263 states, wireresults) |
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264 |
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265 def close(self): |
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266 self.sendcommands() |
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267 |
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268 if self._closed: |
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269 return |
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270 |
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271 self._closed = True |
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272 |
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273 if not self._responsef: |
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274 return |
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275 |
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276 # We need to wait on our in-flight response and then shut down the |
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277 # executor once we have a result. |
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278 try: |
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279 self._responsef.result() |
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280 finally: |
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281 self._responseexecutor.shutdown(wait=True) |
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282 self._responsef = None |
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283 self._responseexecutor = None |
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284 |
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285 # If any of our futures are still in progress, mark them as |
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286 # errored. Otherwise a result() could wait indefinitely. |
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287 for f in self._futures: |
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288 if not f.done(): |
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289 f.set_exception(error.ResponseError( |
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290 _('unfulfilled batch command response'))) |
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291 |
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292 self._futures = None |
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293 |
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294 def _readbatchresponse(self, states, wireresults): |
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295 # Executes in a thread to read data off the wire. |
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296 |
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297 for command, f, batchable, fremote in states: |
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298 # Grab raw result off the wire and teach the internal future |
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299 # about it. |
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300 remoteresult = next(wireresults) |
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301 fremote.set(remoteresult) |
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302 |
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303 # And ask the coroutine to decode that value. |
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304 try: |
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305 result = next(batchable) |
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306 except Exception: |
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307 f.set_exception_info(*sys.exc_info()[1:]) |
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308 else: |
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309 f.set_result(result) |
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310 |
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311 @zi.implementer(repository.ipeercommands, repository.ipeerlegacycommands) |
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312 class wirepeer(repository.peer): |
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313 """Client-side interface for communicating with a peer repository. |
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314 |
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315 Methods commonly call wire protocol commands of the same name. |
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316 |
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317 See also httppeer.py and sshpeer.py for protocol-specific |
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318 implementations of this interface. |
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319 """ |
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320 def commandexecutor(self): |
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321 return peerexecutor(self) |
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322 |
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323 # Begin of ipeercommands interface. |
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324 |
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325 def clonebundles(self): |
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326 self.requirecap('clonebundles', _('clone bundles')) |
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327 return self._call('clonebundles') |
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328 |
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329 @batchable |
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330 def lookup(self, key): |
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331 self.requirecap('lookup', _('look up remote revision')) |
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332 f = future() |
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333 yield {'key': encoding.fromlocal(key)}, f |
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334 d = f.value |
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335 success, data = d[:-1].split(" ", 1) |
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336 if int(success): |
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337 yield bin(data) |
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338 else: |
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339 self._abort(error.RepoError(data)) |
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340 |
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341 @batchable |
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342 def heads(self): |
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343 f = future() |
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344 yield {}, f |
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345 d = f.value |
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346 try: |
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347 yield wireprototypes.decodelist(d[:-1]) |
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348 except ValueError: |
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349 self._abort(error.ResponseError(_("unexpected response:"), d)) |
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350 |
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351 @batchable |
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e615765fdcc7
wireproto: add known([id]) function
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parents:
13722
diff
changeset
|
352 def known(self, nodes): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
353 f = future() |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
354 yield {'nodes': wireprototypes.encodelist(nodes)}, f |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
355 d = f.value |
13723
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
356 try: |
22201
269688a398c4
cleanup: fix some list comprehension redefinitions of existing vars
Mads Kiilerich <madski@unity3d.com>
parents:
21989
diff
changeset
|
357 yield [bool(int(b)) for b in d] |
13726
378522bdc059
wireproto: avoid naked excepts
Matt Mackall <mpm@selenic.com>
parents:
13723
diff
changeset
|
358 except ValueError: |
13723
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
359 self._abort(error.ResponseError(_("unexpected response:"), d)) |
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
360 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
361 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
362 def branchmap(self): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
363 f = future() |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
364 yield {}, f |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
365 d = f.value |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
366 try: |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
367 branchmap = {} |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
368 for branchpart in d.splitlines(): |
11597
9141d2c9e5a5
wireproto: refactor list of nodeid encoding / decoding
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11594
diff
changeset
|
369 branchname, branchheads = branchpart.split(' ', 1) |
28883
032c4c2f802a
pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents:
28666
diff
changeset
|
370 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
|
371 branchheads = wireprototypes.decodelist(branchheads) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
372 branchmap[branchname] = branchheads |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
373 yield branchmap |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
374 except TypeError: |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
375 self._abort(error.ResponseError(_("unexpected response:"), d)) |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
376 |
33806
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
377 @batchable |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
378 def listkeys(self, namespace): |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
379 if not self.capable('pushkey'): |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
380 yield {}, None |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
381 f = future() |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
382 self.ui.debug('preparing listkeys for "%s"\n' % namespace) |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
383 yield {'namespace': encoding.fromlocal(namespace)}, f |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
384 d = f.value |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
385 self.ui.debug('received listkey for "%s": %i bytes\n' |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
386 % (namespace, len(d))) |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
387 yield pushkeymod.decodekeys(d) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
388 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
389 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
390 def pushkey(self, namespace, key, old, new): |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
391 if not self.capable('pushkey'): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
392 yield False, None |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
393 f = future() |
17293
d3f84ccc5495
pushkey: add more verbose debug output regarding pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17205
diff
changeset
|
394 self.ui.debug('preparing pushkey for "%s:%s"\n' % (namespace, key)) |
20671
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
395 yield {'namespace': encoding.fromlocal(namespace), |
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
396 'key': encoding.fromlocal(key), |
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
397 'old': encoding.fromlocal(old), |
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
398 'new': encoding.fromlocal(new)}, f |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
399 d = f.value |
15652
ca6accdad79c
wireproto: handle other server output in pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15585
diff
changeset
|
400 d, output = d.split('\n', 1) |
13450
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
401 try: |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
402 d = bool(int(d)) |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
403 except ValueError: |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
404 raise error.ResponseError( |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
405 _('push failed (unexpected response):'), d) |
15652
ca6accdad79c
wireproto: handle other server output in pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15585
diff
changeset
|
406 for l in output.splitlines(True): |
ca6accdad79c
wireproto: handle other server output in pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15585
diff
changeset
|
407 self.ui.status(_('remote: '), l) |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
408 yield d |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
409 |
11588
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
410 def stream_out(self): |
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
411 return self._callstream('stream_out') |
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
412 |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
413 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
|
414 kwargs = pycompat.byteskwargs(kwargs) |
13741
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
415 self.requirecap('getbundle', _('look up remote changes')) |
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
416 opts = {} |
37412
1d459f61b42a
wireproto: don't special case bundlecaps, but sort all scsv arguments
Joerg Sonnenberger <joerg@bec.de>
parents:
37393
diff
changeset
|
417 bundlecaps = kwargs.get('bundlecaps') or set() |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
418 for key, value in kwargs.iteritems(): |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
419 if value is None: |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
420 continue |
37613
96d735601ca1
wireproto: move gboptsmap to wireprototypes and rename (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37612
diff
changeset
|
421 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
|
422 if keytype is None: |
34730
6be264009841
wireproto: use a proper exception instead of `assert False`
Augie Fackler <augie@google.com>
parents:
34729
diff
changeset
|
423 raise error.ProgrammingError( |
6be264009841
wireproto: use a proper exception instead of `assert False`
Augie Fackler <augie@google.com>
parents:
34729
diff
changeset
|
424 'Unexpectedly None keytype for key %s' % key) |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
425 elif keytype == 'nodes': |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
426 value = wireprototypes.encodelist(value) |
37412
1d459f61b42a
wireproto: don't special case bundlecaps, but sort all scsv arguments
Joerg Sonnenberger <joerg@bec.de>
parents:
37393
diff
changeset
|
427 elif keytype == 'csv': |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
428 value = ','.join(value) |
37412
1d459f61b42a
wireproto: don't special case bundlecaps, but sort all scsv arguments
Joerg Sonnenberger <joerg@bec.de>
parents:
37393
diff
changeset
|
429 elif keytype == 'scsv': |
1d459f61b42a
wireproto: don't special case bundlecaps, but sort all scsv arguments
Joerg Sonnenberger <joerg@bec.de>
parents:
37393
diff
changeset
|
430 value = ','.join(sorted(value)) |
21988
12cd3827b860
wireproto: add a ``boolean`` type for getbundle parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21728
diff
changeset
|
431 elif keytype == 'boolean': |
22351
7e6dd496d327
wireprotocol: fix 'boolean' handling
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22342
diff
changeset
|
432 value = '%i' % bool(value) |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
433 elif keytype != 'plain': |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
434 raise KeyError('unknown getbundle option type %s' |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
435 % keytype) |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
436 opts[key] = value |
34739
b880cc11da5d
wireproto: bounce kwargs to/from bytes/str as needed
Augie Fackler <augie@google.com>
parents:
34731
diff
changeset
|
437 f = self._callcompressable("getbundle", **pycompat.strkwargs(opts)) |
25149
3f0744eeaeaf
cleanup: use __builtins__.any instead of util.any
Augie Fackler <augie@google.com>
parents:
25128
diff
changeset
|
438 if any((cap.startswith('HG2') for cap in bundlecaps)): |
24641
60fecc5b14a4
unbundle20: retrieve unbundler instances through a factory function
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23878
diff
changeset
|
439 return bundle2.getunbundler(self.ui, f) |
21069
0a9cae236738
bundle2: allow bundle2 for pulling over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21064
diff
changeset
|
440 else: |
22390
e2806b8613ca
changegroup: rename bundle-related functions and classes
Sune Foldager <cryo@cyanite.org>
parents:
22353
diff
changeset
|
441 return changegroupmod.cg1unpacker(f, 'UN') |
13741
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
442 |
37646
72e26319f3b8
wireproto: use command executor for unbundle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37635
diff
changeset
|
443 def unbundle(self, bundle, heads, url): |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
444 '''Send cg (a readable file-like object representing the |
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
445 changegroup to push, typically a chunkbuffer object) to the |
21075
438803e4bd97
bundle2: support for push over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21072
diff
changeset
|
446 remote server as a bundle. |
438803e4bd97
bundle2: support for push over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21072
diff
changeset
|
447 |
438803e4bd97
bundle2: support for push over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21072
diff
changeset
|
448 When pushing a bundle10 stream, return an integer indicating the |
32880
4c2a46f89f08
wireproto: update reference to deleted addchangegroup()
Martin von Zweigbergk <martinvonz@google.com>
parents:
32744
diff
changeset
|
449 result of the push (see changegroup.apply()). |
21075
438803e4bd97
bundle2: support for push over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21072
diff
changeset
|
450 |
29706
7f6130c7ffe1
wirepeer: rename confusing `source` parameter
Augie Fackler <augie@google.com>
parents:
29590
diff
changeset
|
451 When pushing a bundle20 stream, return a bundle20 stream. |
7f6130c7ffe1
wirepeer: rename confusing `source` parameter
Augie Fackler <augie@google.com>
parents:
29590
diff
changeset
|
452 |
7f6130c7ffe1
wirepeer: rename confusing `source` parameter
Augie Fackler <augie@google.com>
parents:
29590
diff
changeset
|
453 `url` is the url the client thinks it's pushing to, which is |
7f6130c7ffe1
wirepeer: rename confusing `source` parameter
Augie Fackler <augie@google.com>
parents:
29590
diff
changeset
|
454 visible to hooks. |
7f6130c7ffe1
wirepeer: rename confusing `source` parameter
Augie Fackler <augie@google.com>
parents:
29590
diff
changeset
|
455 ''' |
11592
26e0782b8380
protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents:
11591
diff
changeset
|
456 |
14419
ede7cea1550f
wireproto: do not hash when heads == ['force']
Martin Geisler <mg@aragost.com>
parents:
14093
diff
changeset
|
457 if heads != ['force'] and self.capable('unbundlehash'): |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
458 heads = wireprototypes.encodelist( |
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
459 ['hashed', hashlib.sha1(''.join(sorted(heads))).digest()]) |
13942
88f0e41d8802
wireproto: allow unbundle with hashed heads parameter (issue2126)
Shuhei Takahashi <takahashi.shuhei@gmail.com>
parents:
13741
diff
changeset
|
460 else: |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
461 heads = wireprototypes.encodelist(heads) |
13942
88f0e41d8802
wireproto: allow unbundle with hashed heads parameter (issue2126)
Shuhei Takahashi <takahashi.shuhei@gmail.com>
parents:
13741
diff
changeset
|
462 |
37646
72e26319f3b8
wireproto: use command executor for unbundle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37635
diff
changeset
|
463 if util.safehasattr(bundle, 'deltaheader'): |
21075
438803e4bd97
bundle2: support for push over the wire
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21072
diff
changeset
|
464 # this a bundle10, do the old style call sequence |
37646
72e26319f3b8
wireproto: use command executor for unbundle
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465 ret, output = self._callpush("unbundle", bundle, heads=heads) |
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466 if ret == "": |
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467 raise error.ResponseError( |
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468 _('push failed:'), output) |
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469 try: |
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470 ret = int(ret) |
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471 except ValueError: |
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472 raise error.ResponseError( |
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473 _('push failed (unexpected response):'), ret) |
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474 |
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475 for l in output.splitlines(True): |
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476 self.ui.status(_('remote: '), l) |
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477 else: |
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478 # bundle2 push. Send a stream, fetch a stream. |
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479 stream = self._calltwowaystream('unbundle', bundle, heads=heads) |
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480 ret = bundle2.getunbundler(self.ui, stream) |
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481 return ret |
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482 |
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483 # End of ipeercommands interface. |
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484 |
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485 # Begin of ipeerlegacycommands interface. |
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486 |
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487 def branches(self, nodes): |
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488 n = wireprototypes.encodelist(nodes) |
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489 d = self._call("branches", nodes=n) |
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490 try: |
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491 br = [tuple(wireprototypes.decodelist(b)) for b in d.splitlines()] |
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492 return br |
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493 except ValueError: |
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494 self._abort(error.ResponseError(_("unexpected response:"), d)) |
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495 |
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496 def between(self, pairs): |
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497 batch = 8 # avoid giant requests |
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498 r = [] |
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499 for i in xrange(0, len(pairs), batch): |
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500 n = " ".join([wireprototypes.encodelist(p, '-') |
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501 for p in pairs[i:i + batch]]) |
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502 d = self._call("between", pairs=n) |
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503 try: |
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504 r.extend(l and wireprototypes.decodelist(l) or [] |
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505 for l in d.splitlines()) |
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506 except ValueError: |
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507 self._abort(error.ResponseError(_("unexpected response:"), d)) |
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508 return r |
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509 |
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510 def changegroup(self, nodes, source): |
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511 n = wireprototypes.encodelist(nodes) |
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512 f = self._callcompressable("changegroup", roots=n) |
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513 return changegroupmod.cg1unpacker(f, 'UN') |
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514 |
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515 def changegroupsubset(self, bases, heads, source): |
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516 self.requirecap('changegroupsubset', _('look up remote changes')) |
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517 bases = wireprototypes.encodelist(bases) |
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518 heads = wireprototypes.encodelist(heads) |
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519 f = self._callcompressable("changegroupsubset", |
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520 bases=bases, heads=heads) |
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521 return changegroupmod.cg1unpacker(f, 'UN') |
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522 |
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523 # End of ipeerlegacycommands interface. |
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524 |
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525 def _submitbatch(self, req): |
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526 """run batch request <req> on the server |
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527 |
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528 Returns an iterator of the raw responses from the server. |
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529 """ |
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|
530 ui = self.ui |
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|
531 if ui.debugflag and ui.configbool('devel', 'debug.peer-request'): |
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532 ui.debug('devel-peer-request: batched-content\n') |
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533 for op, args in req: |
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534 msg = 'devel-peer-request: - %s (%d arguments)\n' |
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|
535 ui.debug(msg % (op, len(args))) |
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|
536 |
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537 unescapearg = wireprototypes.unescapebatcharg |
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|
538 |
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539 rsp = self._callstream("batch", cmds=encodebatchcmds(req)) |
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540 chunk = rsp.read(1024) |
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|
541 work = [chunk] |
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542 while chunk: |
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543 while ';' not in chunk and chunk: |
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544 chunk = rsp.read(1024) |
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545 work.append(chunk) |
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546 merged = ''.join(work) |
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547 while ';' in merged: |
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548 one, merged = merged.split(';', 1) |
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549 yield unescapearg(one) |
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550 chunk = rsp.read(1024) |
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|
551 work = [merged, chunk] |
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|
552 yield unescapearg(''.join(work)) |
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|
553 |
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|
554 def _submitone(self, op, args): |
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parents:
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diff
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|
555 return self._call(op, **pycompat.strkwargs(args)) |
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|
556 |
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|
557 def debugwireargs(self, one, two, three=None, four=None, five=None): |
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diff
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|
558 # don't pass optional arguments left at their default value |
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|
559 opts = {} |
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|
560 if three is not None: |
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|
561 opts[r'three'] = three |
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562 if four is not None: |
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|
563 opts[r'four'] = four |
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564 return self._call('debugwireargs', one=one, two=two, **opts) |
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|
565 |
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diff
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|
566 def _call(self, cmd, **args): |
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|
567 """execute <cmd> on the server |
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|
568 |
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|
569 The command is expected to return a simple string. |
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|
570 |
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|
571 returns the server reply as a string.""" |
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|
572 raise NotImplementedError() |
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diff
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|
573 |
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574 def _callstream(self, cmd, **args): |
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575 """execute <cmd> on the server |
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|
576 |
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diff
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|
577 The command is expected to return a stream. Note that if the |
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diff
changeset
|
578 command doesn't return a stream, _callstream behaves |
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diff
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|
579 differently for ssh and http peers. |
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|
580 |
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|
581 returns the server reply as a file like object. |
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wireproto: document quirk of _callstream between http and ssh
Augie Fackler <augie@google.com>
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582 """ |
20904
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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583 raise NotImplementedError() |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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584 |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
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585 def _callcompressable(self, cmd, **args): |
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586 """execute <cmd> on the server |
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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587 |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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588 The command is expected to return a stream. |
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589 |
21024
7731a2281cf0
spelling: fixes from spell checker
Mads Kiilerich <madski@unity3d.com>
parents:
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590 The stream may have been compressed in some implementations. This |
20905
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20904
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591 function takes care of the decompression. This is the only difference |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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592 with _callstream. |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20904
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593 |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20904
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594 returns the server reply as a file like object. |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20904
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595 """ |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20904
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596 raise NotImplementedError() |
167047ba3cfa
wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20904
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597 |
20904
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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598 def _callpush(self, cmd, fp, **args): |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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parents:
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599 """execute a <cmd> on server |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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600 |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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601 The command is expected to be related to a push. Push has a special |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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602 return method. |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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603 |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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parents:
20903
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604 returns the server reply as a (ret, output) tuple. ret is either |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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605 empty (error) or a stringified int. |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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parents:
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606 """ |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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607 raise NotImplementedError() |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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608 |
21072
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21069
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609 def _calltwowaystream(self, cmd, fp, **args): |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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610 """execute <cmd> on server |
0879352d67d8
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parents:
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611 |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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612 The command will send a stream to the server and get a stream in reply. |
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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613 """ |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21069
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614 raise NotImplementedError() |
0879352d67d8
wireproto: add a _calltwowaystream method on wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21069
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615 |
20904
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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616 def _abort(self, exception): |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
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parents:
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617 """clearly abort the wire protocol connection and raise the exception |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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618 """ |
3dbe6bcd7f62
wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20903
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619 raise NotImplementedError() |