annotate hgext/narrow/narrowwirepeer.py @ 47220:4039cad0d8ff

config: drop the `format.exp-revlogv2.2` option It is oddly named and not used at all. The one used by the code is still `experimental.revlogv2`. So we drop that one option for consistency. We move associate documentation to the actual option. Differential Revision: https://phab.mercurial-scm.org/D10611
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Mon, 03 May 2021 12:28:47 +0200
parents 89a2afe31e82
children 6000f5b25c9b 6b10151b9621
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1 # narrowwirepeer.py - passes narrow spec with unbundle command
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2 #
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3 # Copyright 2017 Google, Inc.
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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 from mercurial import (
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11 bundle2,
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12 error,
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13 extensions,
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14 hg,
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15 narrowspec,
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16 wireprototypes,
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17 wireprotov1peer,
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18 wireprotov1server,
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19 )
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20
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21 from . import narrowbundle2
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22
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23
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24 def uisetup():
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25 wireprotov1peer.wirepeer.narrow_widen = peernarrowwiden
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26
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27
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28 def reposetup(repo):
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29 def wirereposetup(ui, peer):
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30 def wrapped(orig, cmd, *args, **kwargs):
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31 if cmd == b'unbundle':
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32 # TODO: don't blindly add include/exclude wireproto
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33 # arguments to unbundle.
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34 include, exclude = repo.narrowpats
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35 kwargs["includepats"] = b','.join(include)
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36 kwargs["excludepats"] = b','.join(exclude)
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37 return orig(cmd, *args, **kwargs)
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38
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39 extensions.wrapfunction(peer, b'_calltwowaystream', wrapped)
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40
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41 hg.wirepeersetupfuncs.append(wirereposetup)
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42
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43
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44 @wireprotov1server.wireprotocommand(
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45 b'narrow_widen',
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46 b'oldincludes oldexcludes'
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47 b' newincludes newexcludes'
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48 b' commonheads cgversion'
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49 b' known ellipses',
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50 permission=b'pull',
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51 )
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52 def narrow_widen(
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53 repo,
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54 proto,
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55 oldincludes,
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56 oldexcludes,
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57 newincludes,
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58 newexcludes,
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59 commonheads,
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60 cgversion,
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61 known,
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62 ellipses,
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63 ):
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64 """wireprotocol command to send data when a narrow clone is widen. We will
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65 be sending a changegroup here.
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66
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67 The current set of arguments which are required:
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68 oldincludes: the old includes of the narrow copy
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69 oldexcludes: the old excludes of the narrow copy
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70 newincludes: the new includes of the narrow copy
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71 newexcludes: the new excludes of the narrow copy
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72 commonheads: list of heads which are common between the server and client
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73 cgversion(maybe): the changegroup version to produce
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74 known: list of nodes which are known on the client (used in ellipses cases)
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75 ellipses: whether to send ellipses data or not
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76 """
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77
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78 preferuncompressed = False
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79 try:
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80
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81 def splitpaths(data):
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82 # work around ''.split(',') => ['']
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83 return data.split(b',') if data else []
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84
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85 oldincludes = splitpaths(oldincludes)
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86 newincludes = splitpaths(newincludes)
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87 oldexcludes = splitpaths(oldexcludes)
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88 newexcludes = splitpaths(newexcludes)
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89 # validate the patterns
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90 narrowspec.validatepatterns(set(oldincludes))
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91 narrowspec.validatepatterns(set(newincludes))
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92 narrowspec.validatepatterns(set(oldexcludes))
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93 narrowspec.validatepatterns(set(newexcludes))
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94
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95 common = wireprototypes.decodelist(commonheads)
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96 known = wireprototypes.decodelist(known)
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97 if ellipses == b'0':
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98 ellipses = False
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99 else:
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100 ellipses = bool(ellipses)
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101 cgversion = cgversion
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102
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103 bundler = bundle2.bundle20(repo.ui)
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104 newmatch = narrowspec.match(
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105 repo.root, include=newincludes, exclude=newexcludes
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106 )
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107 oldmatch = narrowspec.match(
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108 repo.root, include=oldincludes, exclude=oldexcludes
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109 )
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110 if not ellipses:
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111 bundle2.widen_bundle(
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112 bundler,
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113 repo,
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114 oldmatch,
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115 newmatch,
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116 common,
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117 known,
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118 cgversion,
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119 ellipses,
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120 )
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121 else:
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122 narrowbundle2.generate_ellipses_bundle2_for_widening(
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123 bundler,
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124 repo,
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125 oldmatch,
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126 newmatch,
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127 cgversion,
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128 common,
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129 known,
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130 )
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131 except error.Abort as exc:
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132 bundler = bundle2.bundle20(repo.ui)
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133 manargs = [(b'message', exc.message)]
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134 advargs = []
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135 if exc.hint is not None:
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136 advargs.append((b'hint', exc.hint))
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137 bundler.addpart(bundle2.bundlepart(b'error:abort', manargs, advargs))
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138 preferuncompressed = True
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139
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140 chunks = bundler.getchunks()
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141 return wireprototypes.streamres(
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142 gen=chunks, prefer_uncompressed=preferuncompressed
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143 )
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144
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145
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146 def peernarrowwiden(remote, **kwargs):
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147 for ch in ('commonheads', 'known'):
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148 kwargs[ch] = wireprototypes.encodelist(kwargs[ch])
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149
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150 for ch in ('oldincludes', 'newincludes', 'oldexcludes', 'newexcludes'):
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151 kwargs[ch] = b','.join(kwargs[ch])
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152
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153 kwargs['ellipses'] = b'%i' % bool(kwargs['ellipses'])
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154 f = remote._callcompressable(b'narrow_widen', **kwargs)
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155 return bundle2.getunbundler(remote.ui, f)