Mercurial > hg
annotate mercurial/wireprotov1peer.py @ 41055:55e8da487b8a
wireproto: in batch queries, support queries with immediate responses
listkeys and pushkey return without querying the remote when the
remote doesn't support such queries. Before this change, the batching
code didn't handle this convention, resulting in this kind of error:
$ hg pull ssh://user@dummy/repo1 -r tip -B a
pulling from ssh://user@dummy/repo1
remote: ** Unknown exception encountered with possibly-broken third-party extension disable-lookup
remote: ** which supports versions unknown of Mercurial.
remote: ** Please disable disable-lookup and try your action again.
remote: ** If that fixes the bug please report it to the extension author.
remote: ** Python 2.7.15+ (default, Oct 2 2018, 22:12:08) [GCC 8.2.0]
remote: ** Mercurial Distributed SCM (version 4.8.1+586-ef54bd33b476+20181224)
remote: ** Extensions loaded: disable-lookup
remote: Traceback (most recent call last):
remote: File "/tmp/hgtests.i66Npc/install/bin/hg", line 43, in <module>
remote: dispatch.run()
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 99, in run
remote: status = dispatch(req)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 225, in dispatch
remote: ret = _runcatch(req) or 0
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 376, in _runcatch
remote: return _callcatch(ui, _runcatchfunc)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 384, in _callcatch
remote: return scmutil.callcatch(ui, func)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/scmutil.py", line 166, in callcatch
remote: return func()
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 367, in _runcatchfunc
remote: return _dispatch(req)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 1021, in _dispatch
remote: cmdpats, cmdoptions)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 756, in runcommand
remote: ret = _runcommand(ui, options, cmd, d)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 1030, in _runcommand
remote: return cmdfunc()
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/dispatch.py", line 1018, in <lambda>
remote: d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/util.py", line 1670, in check
remote: return func(*args, **kwargs)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/commands.py", line 5257, in serve
remote: s.serve_forever()
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/wireprotoserver.py", line 797, in serve_forever
remote: self.serveuntil(threading.Event())
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/wireprotoserver.py", line 804, in serveuntil
remote: _runsshserver(self._ui, self._repo, self._fin, self._fout, ev)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/wireprotoserver.py", line 656, in _runsshserver
remote: rsp = wireprotov1server.dispatch(repo, proto, request)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/wireprotov1server.py", line 74, in dispatch
remote: return func(repo, proto, *args)
remote: File "/tmp/hgtests.i66Npc/install/lib/python/mercurial/wireprotov1server.py", line 195, in batch
remote: data[k] = vals[k]
remote: KeyError: 'namespace'
abort: unexpected response: empty string
[255]
Differential Revision: https://phab.mercurial-scm.org/D5482
author | Valentin Gatien-Baron <valentin.gatienbaron@gmail.com> |
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date | Mon, 24 Dec 2018 14:04:16 -0500 |
parents | f15a587d2dfc |
children | 268662aac075 |
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 . import ( |
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19 bundle2, |
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20 changegroup as changegroupmod, |
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21 encoding, |
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22 error, |
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23 pushkey as pushkeymod, |
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24 pycompat, |
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25 repository, |
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26 util, |
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27 wireprototypes, |
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28 ) |
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29 from .utils import ( |
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30 interfaceutil, |
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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 setattr(plain, '__name__', f.__name__) |
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68 return plain |
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69 |
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70 class future(object): |
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71 '''placeholder for a value to be set later''' |
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72 def set(self, value): |
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73 if util.safehasattr(self, 'value'): |
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74 raise error.RepoError("future is already set") |
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75 self.value = value |
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76 |
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77 def encodebatchcmds(req): |
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78 """Return a ``cmds`` argument value for the ``batch`` command.""" |
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79 escapearg = wireprototypes.escapebatcharg |
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80 |
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81 cmds = [] |
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82 for op, argsdict in req: |
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83 # Old servers didn't properly unescape argument names. So prevent |
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84 # the sending of argument names that may not be decoded properly by |
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85 # servers. |
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86 assert all(escapearg(k) == k for k in argsdict) |
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87 |
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88 args = ','.join('%s=%s' % (escapearg(k), escapearg(v)) |
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89 for k, v in argsdict.iteritems()) |
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90 cmds.append('%s %s' % (op, args)) |
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91 |
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92 return ';'.join(cmds) |
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93 |
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94 class unsentfuture(pycompat.futures.Future): |
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95 """A Future variation to represent an unsent command. |
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96 |
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97 Because we buffer commands and don't submit them immediately, calling |
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98 ``result()`` on an unsent future could deadlock. Futures for buffered |
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99 commands are represented by this type, which wraps ``result()`` to |
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100 call ``sendcommands()``. |
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101 """ |
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102 |
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103 def result(self, timeout=None): |
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104 if self.done(): |
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105 return pycompat.futures.Future.result(self, timeout) |
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106 |
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107 self._peerexecutor.sendcommands() |
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108 |
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109 # This looks like it will infinitely recurse. However, |
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110 # sendcommands() should modify __class__. This call serves as a check |
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111 # on that. |
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112 return self.result(timeout) |
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113 |
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114 @interfaceutil.implementer(repository.ipeercommandexecutor) |
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115 class peerexecutor(object): |
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116 def __init__(self, peer): |
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117 self._peer = peer |
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118 self._sent = False |
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119 self._closed = False |
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120 self._calls = [] |
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121 self._futures = weakref.WeakSet() |
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122 self._responseexecutor = None |
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123 self._responsef = None |
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124 |
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125 def __enter__(self): |
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126 return self |
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127 |
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128 def __exit__(self, exctype, excvalee, exctb): |
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129 self.close() |
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130 |
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131 def callcommand(self, command, args): |
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132 if self._sent: |
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133 raise error.ProgrammingError('callcommand() cannot be used ' |
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134 'after commands are sent') |
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135 |
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136 if self._closed: |
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137 raise error.ProgrammingError('callcommand() cannot be used ' |
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138 'after close()') |
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139 |
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140 # Commands are dispatched through methods on the peer. |
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141 fn = getattr(self._peer, pycompat.sysstr(command), None) |
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142 |
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143 if not fn: |
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144 raise error.ProgrammingError( |
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145 'cannot call command %s: method of same name not available ' |
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146 'on peer' % command) |
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147 |
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148 # Commands are either batchable or they aren't. If a command |
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149 # isn't batchable, we send it immediately because the executor |
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150 # can no longer accept new commands after a non-batchable command. |
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151 # If a command is batchable, we queue it for later. But we have |
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152 # to account for the case of a non-batchable command arriving after |
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153 # a batchable one and refuse to service it. |
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154 |
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155 def addcall(): |
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156 f = pycompat.futures.Future() |
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157 self._futures.add(f) |
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158 self._calls.append((command, args, fn, f)) |
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159 return f |
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160 |
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161 if getattr(fn, 'batchable', False): |
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162 f = addcall() |
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163 |
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164 # But since we don't issue it immediately, we wrap its result() |
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165 # to trigger sending so we avoid deadlocks. |
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166 f.__class__ = unsentfuture |
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167 f._peerexecutor = self |
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168 else: |
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169 if self._calls: |
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170 raise error.ProgrammingError( |
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171 '%s is not batchable and cannot be called on a command ' |
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172 'executor along with other commands' % command) |
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173 |
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174 f = addcall() |
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175 |
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176 # Non-batchable commands can never coexist with another command |
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177 # in this executor. So send the command immediately. |
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178 self.sendcommands() |
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179 |
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180 return f |
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181 |
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182 def sendcommands(self): |
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183 if self._sent: |
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184 return |
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185 |
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186 if not self._calls: |
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187 return |
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188 |
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189 self._sent = True |
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190 |
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191 # Unhack any future types so caller seens a clean type and to break |
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192 # cycle between us and futures. |
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193 for f in self._futures: |
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194 if isinstance(f, unsentfuture): |
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195 f.__class__ = pycompat.futures.Future |
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196 f._peerexecutor = None |
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197 |
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198 calls = self._calls |
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199 # Mainly to destroy references to futures. |
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200 self._calls = None |
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201 |
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202 # Simple case of a single command. We call it synchronously. |
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203 if len(calls) == 1: |
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204 command, args, fn, f = calls[0] |
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205 |
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206 # Future was cancelled. Ignore it. |
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207 if not f.set_running_or_notify_cancel(): |
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208 return |
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209 |
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210 try: |
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211 result = fn(**pycompat.strkwargs(args)) |
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212 except Exception: |
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213 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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214 else: |
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215 f.set_result(result) |
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216 |
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217 return |
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218 |
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219 # Batch commands are a bit harder. First, we have to deal with the |
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220 # @batchable coroutine. That's a bit annoying. Furthermore, we also |
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221 # need to preserve streaming. i.e. it should be possible for the |
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222 # futures to resolve as data is coming in off the wire without having |
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223 # to wait for the final byte of the final response. We do this by |
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224 # spinning up a thread to read the responses. |
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225 |
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226 requests = [] |
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227 states = [] |
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228 |
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229 for command, args, fn, f in calls: |
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230 # Future was cancelled. Ignore it. |
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231 if not f.set_running_or_notify_cancel(): |
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232 continue |
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233 |
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234 try: |
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235 batchable = fn.batchable(fn.__self__, |
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236 **pycompat.strkwargs(args)) |
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237 except Exception: |
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238 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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239 return |
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240 |
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241 # Encoded arguments and future holding remote result. |
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242 try: |
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243 encargsorres, fremote = next(batchable) |
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244 except Exception: |
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245 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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246 return |
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247 |
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248 if not fremote: |
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249 f.set_result(encargsorres) |
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250 else: |
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251 requests.append((command, encargsorres)) |
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252 states.append((command, f, batchable, fremote)) |
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253 |
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254 if not requests: |
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255 return |
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256 |
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257 # This will emit responses in order they were executed. |
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258 wireresults = self._peer._submitbatch(requests) |
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259 |
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260 # The use of a thread pool executor here is a bit weird for something |
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261 # that only spins up a single thread. However, thread management is |
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262 # hard and it is easy to encounter race conditions, deadlocks, etc. |
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263 # concurrent.futures already solves these problems and its thread pool |
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264 # executor has minimal overhead. So we use it. |
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265 self._responseexecutor = pycompat.futures.ThreadPoolExecutor(1) |
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266 self._responsef = self._responseexecutor.submit(self._readbatchresponse, |
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267 states, wireresults) |
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268 |
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269 def close(self): |
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270 self.sendcommands() |
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271 |
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272 if self._closed: |
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273 return |
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274 |
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275 self._closed = True |
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276 |
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277 if not self._responsef: |
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278 return |
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279 |
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280 # We need to wait on our in-flight response and then shut down the |
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281 # executor once we have a result. |
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282 try: |
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283 self._responsef.result() |
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284 finally: |
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285 self._responseexecutor.shutdown(wait=True) |
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286 self._responsef = None |
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287 self._responseexecutor = None |
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288 |
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289 # If any of our futures are still in progress, mark them as |
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290 # errored. Otherwise a result() could wait indefinitely. |
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291 for f in self._futures: |
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292 if not f.done(): |
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293 f.set_exception(error.ResponseError( |
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294 _('unfulfilled batch command response'))) |
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295 |
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296 self._futures = None |
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297 |
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298 def _readbatchresponse(self, states, wireresults): |
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299 # Executes in a thread to read data off the wire. |
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300 |
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301 for command, f, batchable, fremote in states: |
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302 # Grab raw result off the wire and teach the internal future |
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303 # about it. |
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304 remoteresult = next(wireresults) |
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305 fremote.set(remoteresult) |
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306 |
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307 # And ask the coroutine to decode that value. |
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308 try: |
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309 result = next(batchable) |
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310 except Exception: |
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311 pycompat.future_set_exception_info(f, sys.exc_info()[1:]) |
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312 else: |
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313 f.set_result(result) |
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314 |
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315 @interfaceutil.implementer(repository.ipeercommands, |
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316 repository.ipeerlegacycommands) |
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317 class wirepeer(repository.peer): |
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318 """Client-side interface for communicating with a peer repository. |
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319 |
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320 Methods commonly call wire protocol commands of the same name. |
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321 |
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322 See also httppeer.py and sshpeer.py for protocol-specific |
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323 implementations of this interface. |
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324 """ |
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325 def commandexecutor(self): |
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326 return peerexecutor(self) |
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327 |
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328 # Begin of ipeercommands interface. |
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329 |
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330 def clonebundles(self): |
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331 self.requirecap('clonebundles', _('clone bundles')) |
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332 return self._call('clonebundles') |
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333 |
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334 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
335 def lookup(self, key): |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
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parents:
11585
diff
changeset
|
336 self.requirecap('lookup', _('look up remote revision')) |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
337 f = future() |
20671
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
338 yield {'key': encoding.fromlocal(key)}, f |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
339 d = f.value |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
340 success, data = d[:-1].split(" ", 1) |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
341 if int(success): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
342 yield bin(data) |
34062
6c6169f71b8d
wireproto: do not abort after successful lookup
Kyle Lippincott <spectral@google.com>
parents:
33806
diff
changeset
|
343 else: |
6c6169f71b8d
wireproto: do not abort after successful lookup
Kyle Lippincott <spectral@google.com>
parents:
33806
diff
changeset
|
344 self._abort(error.RepoError(data)) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
345 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
346 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
347 def heads(self): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
348 f = future() |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
349 yield {}, f |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
350 d = f.value |
11586
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protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
351 try: |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
352 yield wireprototypes.decodelist(d[:-1]) |
13726
378522bdc059
wireproto: avoid naked excepts
Matt Mackall <mpm@selenic.com>
parents:
13723
diff
changeset
|
353 except ValueError: |
11879
4e804302d30c
fix undefined variables, spotted by pylint
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11627
diff
changeset
|
354 self._abort(error.ResponseError(_("unexpected response:"), d)) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
355 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
356 @batchable |
13723
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
357 def known(self, nodes): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
358 f = future() |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
359 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
|
360 d = f.value |
13723
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
361 try: |
38328
aa9dd805234d
py3: fix loop over byte string in wireprotov1peer
Yuya Nishihara <yuya@tcha.org>
parents:
37810
diff
changeset
|
362 yield [bool(int(b)) for b in pycompat.iterbytestr(d)] |
13726
378522bdc059
wireproto: avoid naked excepts
Matt Mackall <mpm@selenic.com>
parents:
13723
diff
changeset
|
363 except ValueError: |
13723
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
364 self._abort(error.ResponseError(_("unexpected response:"), d)) |
e615765fdcc7
wireproto: add known([id]) function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13722
diff
changeset
|
365 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
366 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
367 def branchmap(self): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
368 f = future() |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
369 yield {}, f |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
370 d = f.value |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
371 try: |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
372 branchmap = {} |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
373 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
|
374 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
|
375 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
|
376 branchheads = wireprototypes.decodelist(branchheads) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
377 branchmap[branchname] = branchheads |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
378 yield branchmap |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
379 except TypeError: |
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
380 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
|
381 |
33806
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
382 @batchable |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
383 def listkeys(self, namespace): |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
384 if not self.capable('pushkey'): |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
385 yield {}, None |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
386 f = future() |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
387 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
|
388 yield {'namespace': encoding.fromlocal(namespace)}, f |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
389 d = f.value |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
390 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
|
391 % (namespace, len(d))) |
dedab036215d
wireproto: use new peer interface
Gregory Szorc <gregory.szorc@gmail.com>
parents:
33767
diff
changeset
|
392 yield pushkeymod.decodekeys(d) |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
393 |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
394 @batchable |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
395 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
|
396 if not self.capable('pushkey'): |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
397 yield False, None |
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
398 f = future() |
17293
d3f84ccc5495
pushkey: add more verbose debug output regarding pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17205
diff
changeset
|
399 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
|
400 yield {'namespace': encoding.fromlocal(namespace), |
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
401 'key': encoding.fromlocal(key), |
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
402 'old': encoding.fromlocal(old), |
5442cab57b09
wireproto: remove todict() and use {} literals instead
Augie Fackler <raf@durin42.com>
parents:
19201
diff
changeset
|
403 'new': encoding.fromlocal(new)}, f |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
404 d = f.value |
15652
ca6accdad79c
wireproto: handle other server output in pushkey
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15585
diff
changeset
|
405 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
|
406 try: |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
407 d = bool(int(d)) |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
408 except ValueError: |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
409 raise error.ResponseError( |
b3f9af7c22c5
wireproto: catch possible cast error in pushkey
David Soria Parra <dsp@php.net>
parents:
13050
diff
changeset
|
410 _('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
|
411 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
|
412 self.ui.status(_('remote: '), l) |
14623
e7c9fdbbb902
wireproto: make a number of commands batchable
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14622
diff
changeset
|
413 yield d |
11586
ddaaaa23bb8f
protocol: move basic ssh client commands to wirerepository
Matt Mackall <mpm@selenic.com>
parents:
11585
diff
changeset
|
414 |
11588
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
415 def stream_out(self): |
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
416 return self._callstream('stream_out') |
8a1f625e971d
protocol: unify stream_out client code
Matt Mackall <mpm@selenic.com>
parents:
11587
diff
changeset
|
417 |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
418 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
|
419 kwargs = pycompat.byteskwargs(kwargs) |
13741
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
420 self.requirecap('getbundle', _('look up remote changes')) |
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
421 opts = {} |
37412
1d459f61b42a
wireproto: don't special case bundlecaps, but sort all scsv arguments
Joerg Sonnenberger <joerg@bec.de>
parents:
37393
diff
changeset
|
422 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
|
423 for key, value in kwargs.iteritems(): |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
424 if value is None: |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
425 continue |
37613
96d735601ca1
wireproto: move gboptsmap to wireprototypes and rename (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37612
diff
changeset
|
426 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
|
427 if keytype is None: |
34730
6be264009841
wireproto: use a proper exception instead of `assert False`
Augie Fackler <augie@google.com>
parents:
34729
diff
changeset
|
428 raise error.ProgrammingError( |
6be264009841
wireproto: use a proper exception instead of `assert False`
Augie Fackler <augie@google.com>
parents:
34729
diff
changeset
|
429 '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
|
430 elif keytype == 'nodes': |
37612
5e71dea79aae
wireproto: move value encoding functions to wireprototypes (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37546
diff
changeset
|
431 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
|
432 elif keytype == 'csv': |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
433 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
|
434 elif keytype == 'scsv': |
1d459f61b42a
wireproto: don't special case bundlecaps, but sort all scsv arguments
Joerg Sonnenberger <joerg@bec.de>
parents:
37393
diff
changeset
|
435 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
|
436 elif keytype == 'boolean': |
22351
7e6dd496d327
wireprotocol: fix 'boolean' handling
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22342
diff
changeset
|
437 value = '%i' % bool(value) |
21646
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
438 elif keytype != 'plain': |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
439 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
|
440 % keytype) |
ce25f465e572
getbundle: declare type of parameters
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21631
diff
changeset
|
441 opts[key] = value |
34739
b880cc11da5d
wireproto: bounce kwargs to/from bytes/str as needed
Augie Fackler <augie@google.com>
parents:
34731
diff
changeset
|
442 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
|
443 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
|
444 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
|
445 else: |
22390
e2806b8613ca
changegroup: rename bundle-related functions and classes
Sune Foldager <cryo@cyanite.org>
parents:
22353
diff
changeset
|
446 return changegroupmod.cg1unpacker(f, 'UN') |
13741
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13726
diff
changeset
|
447 |
37646
72e26319f3b8
wireproto: use command executor for unbundle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
37635
diff
changeset
|
448 def unbundle(self, bundle, heads, url): |
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449 '''Send cg (a readable file-like object representing the |
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450 changegroup to push, typically a chunkbuffer object) to the |
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451 remote server as a bundle. |
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452 |
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453 When pushing a bundle10 stream, return an integer indicating the |
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454 result of the push (see changegroup.apply()). |
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455 |
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456 When pushing a bundle20 stream, return a bundle20 stream. |
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457 |
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458 `url` is the url the client thinks it's pushing to, which is |
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459 visible to hooks. |
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460 ''' |
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461 |
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462 if heads != ['force'] and self.capable('unbundlehash'): |
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463 heads = wireprototypes.encodelist( |
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464 ['hashed', hashlib.sha1(''.join(sorted(heads))).digest()]) |
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465 else: |
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466 heads = wireprototypes.encodelist(heads) |
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467 |
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468 if util.safehasattr(bundle, 'deltaheader'): |
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469 # this a bundle10, do the old style call sequence |
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470 ret, output = self._callpush("unbundle", bundle, heads=heads) |
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471 if ret == "": |
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472 raise error.ResponseError( |
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473 _('push failed:'), output) |
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474 try: |
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475 ret = int(ret) |
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476 except ValueError: |
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477 raise error.ResponseError( |
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478 _('push failed (unexpected response):'), ret) |
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479 |
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480 for l in output.splitlines(True): |
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481 self.ui.status(_('remote: '), l) |
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482 else: |
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483 # bundle2 push. Send a stream, fetch a stream. |
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484 stream = self._calltwowaystream('unbundle', bundle, heads=heads) |
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485 ret = bundle2.getunbundler(self.ui, stream) |
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486 return ret |
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487 |
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488 # End of ipeercommands interface. |
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489 |
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490 # Begin of ipeerlegacycommands interface. |
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491 |
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492 def branches(self, nodes): |
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493 n = wireprototypes.encodelist(nodes) |
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494 d = self._call("branches", nodes=n) |
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495 try: |
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496 br = [tuple(wireprototypes.decodelist(b)) for b in d.splitlines()] |
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497 return br |
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498 except ValueError: |
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499 self._abort(error.ResponseError(_("unexpected response:"), d)) |
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500 |
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501 def between(self, pairs): |
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502 batch = 8 # avoid giant requests |
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503 r = [] |
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504 for i in pycompat.xrange(0, len(pairs), batch): |
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505 n = " ".join([wireprototypes.encodelist(p, '-') |
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506 for p in pairs[i:i + batch]]) |
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507 d = self._call("between", pairs=n) |
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508 try: |
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509 r.extend(l and wireprototypes.decodelist(l) or [] |
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510 for l in d.splitlines()) |
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511 except ValueError: |
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512 self._abort(error.ResponseError(_("unexpected response:"), d)) |
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513 return r |
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|
514 |
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|
515 def changegroup(self, nodes, source): |
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516 n = wireprototypes.encodelist(nodes) |
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517 f = self._callcompressable("changegroup", roots=n) |
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518 return changegroupmod.cg1unpacker(f, 'UN') |
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|
519 |
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|
520 def changegroupsubset(self, bases, heads, source): |
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521 self.requirecap('changegroupsubset', _('look up remote changes')) |
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522 bases = wireprototypes.encodelist(bases) |
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523 heads = wireprototypes.encodelist(heads) |
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|
524 f = self._callcompressable("changegroupsubset", |
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|
525 bases=bases, heads=heads) |
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|
526 return changegroupmod.cg1unpacker(f, 'UN') |
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|
527 |
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|
528 # End of ipeerlegacycommands interface. |
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|
529 |
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|
530 def _submitbatch(self, req): |
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|
531 """run batch request <req> on the server |
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|
532 |
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|
533 Returns an iterator of the raw responses from the server. |
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|
534 """ |
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|
535 ui = self.ui |
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|
536 if ui.debugflag and ui.configbool('devel', 'debug.peer-request'): |
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|
537 ui.debug('devel-peer-request: batched-content\n') |
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|
538 for op, args in req: |
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diff
changeset
|
539 msg = 'devel-peer-request: - %s (%d arguments)\n' |
4901d1e22b27
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|
540 ui.debug(msg % (op, len(args))) |
4901d1e22b27
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|
541 |
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|
542 unescapearg = wireprototypes.unescapebatcharg |
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|
543 |
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|
544 rsp = self._callstream("batch", cmds=encodebatchcmds(req)) |
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|
545 chunk = rsp.read(1024) |
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|
546 work = [chunk] |
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|
547 while chunk: |
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|
548 while ';' not in chunk and chunk: |
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|
549 chunk = rsp.read(1024) |
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|
550 work.append(chunk) |
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|
551 merged = ''.join(work) |
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diff
changeset
|
552 while ';' in merged: |
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|
553 one, merged = merged.split(';', 1) |
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|
554 yield unescapearg(one) |
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|
555 chunk = rsp.read(1024) |
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|
556 work = [merged, chunk] |
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|
557 yield unescapearg(''.join(work)) |
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|
558 |
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|
559 def _submitone(self, op, args): |
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|
560 return self._call(op, **pycompat.strkwargs(args)) |
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|
561 |
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|
562 def debugwireargs(self, one, two, three=None, four=None, five=None): |
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|
563 # don't pass optional arguments left at their default value |
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|
564 opts = {} |
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|
565 if three is not None: |
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py3: handle keyword arguments correctly in wireproto.py
Pulkit Goyal <7895pulkit@gmail.com>
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566 opts[r'three'] = three |
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debug: add debugwireargs to test argument passing over the wire
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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567 if four is not None: |
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py3: handle keyword arguments correctly in wireproto.py
Pulkit Goyal <7895pulkit@gmail.com>
parents:
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568 opts[r'four'] = four |
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debug: add debugwireargs to test argument passing over the wire
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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569 return self._call('debugwireargs', one=one, two=two, **opts) |
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570 |
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wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
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20903
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571 def _call(self, cmd, **args): |
3dbe6bcd7f62
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572 """execute <cmd> on the server |
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573 |
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wireproto: document protocol specific function of wirepeer
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574 The command is expected to return a simple string. |
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575 |
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wireproto: document protocol specific function of wirepeer
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576 returns the server reply as a string.""" |
3dbe6bcd7f62
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577 raise NotImplementedError() |
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wireproto: document protocol specific function of wirepeer
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578 |
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wireproto: document protocol specific function of wirepeer
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579 def _callstream(self, cmd, **args): |
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580 """execute <cmd> on the server |
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581 |
28435
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wireproto: document quirk of _callstream between http and ssh
Augie Fackler <augie@google.com>
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582 The command is expected to return a stream. Note that if the |
176736afa886
wireproto: document quirk of _callstream between http and ssh
Augie Fackler <augie@google.com>
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583 command doesn't return a stream, _callstream behaves |
176736afa886
wireproto: document quirk of _callstream between http and ssh
Augie Fackler <augie@google.com>
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584 differently for ssh and http peers. |
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wireproto: document protocol specific function of wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
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585 |
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wireproto: document quirk of _callstream between http and ssh
Augie Fackler <augie@google.com>
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586 returns the server reply as a file like object. |
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587 """ |
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wireproto: document protocol specific function of wirepeer
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588 raise NotImplementedError() |
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589 |
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wireproto: drop the _decompress method in favor a new call type
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590 def _callcompressable(self, cmd, **args): |
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591 """execute <cmd> on the server |
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592 |
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593 The command is expected to return a stream. |
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594 |
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Mads Kiilerich <madski@unity3d.com>
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595 The stream may have been compressed in some implementations. This |
20905
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596 function takes care of the decompression. This is the only difference |
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597 with _callstream. |
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598 |
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599 returns the server reply as a file like object. |
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600 """ |
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601 raise NotImplementedError() |
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602 |
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603 def _callpush(self, cmd, fp, **args): |
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604 """execute a <cmd> on server |
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605 |
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606 The command is expected to be related to a push. Push has a special |
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607 return method. |
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608 |
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609 returns the server reply as a (ret, output) tuple. ret is either |
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610 empty (error) or a stringified int. |
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611 """ |
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612 raise NotImplementedError() |
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613 |
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wireproto: add a _calltwowaystream method on wirepeer
Pierre-Yves David <pierre-yves.david@fb.com>
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614 def _calltwowaystream(self, cmd, fp, **args): |
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615 """execute <cmd> on server |
0879352d67d8
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616 |
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617 The command will send a stream to the server and get a stream in reply. |
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618 """ |
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619 raise NotImplementedError() |
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620 |
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621 def _abort(self, exception): |
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622 """clearly abort the wire protocol connection and raise the exception |
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623 """ |
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624 raise NotImplementedError() |