annotate mercurial/streamclone.py @ 52719:6feb3b3029b5

stream: consistently close progress before reporting time Seems more logical. We also take this as an opportunity to explicitly track bytes count in "v2" as relying on progress internal start is error prone.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Thu, 28 Nov 2024 11:05:07 +0100
parents 061bfd699a56
children ca17d31624ac
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1 # streamclone.py - producing and consuming streaming repository data
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2 #
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3 # Copyright 2015 Gregory Szorc <gregory.szorc@gmail.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 annotations
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9
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10 import contextlib
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11 import errno
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12 import os
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13 import struct
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14
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15 from typing import Iterable, Iterator, Optional, Set
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16
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17 from .i18n import _
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18 from .interfaces import repository
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19 from . import (
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20 bookmarks,
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21 bundle2 as bundle2mod,
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22 cacheutil,
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23 error,
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24 narrowspec,
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25 phases,
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26 pycompat,
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27 requirements as requirementsmod,
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28 scmutil,
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29 store,
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30 transaction,
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31 util,
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32 )
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33 from .revlogutils import (
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34 nodemap,
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35 )
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36
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37
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38 def new_stream_clone_requirements(
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39 default_requirements: Iterable[bytes],
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40 streamed_requirements: Iterable[bytes],
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41 ) -> Set[bytes]:
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42 """determine the final set of requirement for a new stream clone
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43
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44 this method combine the "default" requirements that a new repository would
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45 use with the constaint we get from the stream clone content. We keep local
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46 configuration choice when possible.
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47 """
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48 requirements = set(default_requirements)
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49 requirements -= requirementsmod.STREAM_FIXED_REQUIREMENTS
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50 requirements.update(streamed_requirements)
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51 return requirements
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52
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53
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54 def streamed_requirements(repo) -> Set[bytes]:
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55 """the set of requirement the new clone will have to support
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56
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57 This is used for advertising the stream options and to generate the actual
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58 stream content."""
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59 requiredformats = (
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60 repo.requirements & requirementsmod.STREAM_FIXED_REQUIREMENTS
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61 )
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62 return requiredformats
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63
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64
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65 def canperformstreamclone(pullop, bundle2: bool = False):
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66 """Whether it is possible to perform a streaming clone as part of pull.
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67
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68 ``bundle2`` will cause the function to consider stream clone through
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69 bundle2 and only through bundle2.
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70
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71 Returns a tuple of (supported, requirements). ``supported`` is True if
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72 streaming clone is supported and False otherwise. ``requirements`` is
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73 a set of repo requirements from the remote, or ``None`` if stream clone
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74 isn't supported.
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75 """
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76 repo = pullop.repo
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77 remote = pullop.remote
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78
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79 # should we consider streaming clone at all ?
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80 streamrequested = pullop.streamclonerequested
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81 # If we don't have a preference, let the server decide for us. This
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82 # likely only comes into play in LANs.
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83 if streamrequested is None:
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84 # The server can advertise whether to prefer streaming clone.
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85 streamrequested = remote.capable(b'stream-preferred')
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86 if not streamrequested:
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87 return False, None
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88
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89 # Streaming clone only works on an empty destination repository
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90 if len(repo):
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91 return False, None
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92
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93 # Streaming clone only works if all data is being requested.
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94 if pullop.heads:
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95 return False, None
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96
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97 bundle2supported = False
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98 if pullop.canusebundle2:
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99 local_caps = bundle2mod.getrepocaps(repo, role=b'client')
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100 local_supported = set(local_caps.get(b'stream', []))
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101 remote_supported = set(pullop.remotebundle2caps.get(b'stream', []))
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102 bundle2supported = bool(local_supported & remote_supported)
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103 # else
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104 # Server doesn't support bundle2 stream clone or doesn't support
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105 # the versions we support. Fall back and possibly allow legacy.
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106
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107 # Ensures legacy code path uses available bundle2.
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108 if bundle2supported and not bundle2:
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109 return False, None
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110 # Ensures bundle2 doesn't try to do a stream clone if it isn't supported.
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111 elif bundle2 and not bundle2supported:
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112 return False, None
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113
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114 # In order for stream clone to work, the client has to support all the
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115 # requirements advertised by the server.
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116 #
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117 # The server advertises its requirements via the "stream" and "streamreqs"
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118 # capability. "stream" (a value-less capability) is advertised if and only
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119 # if the only requirement is "revlogv1." Else, the "streamreqs" capability
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120 # is advertised and contains a comma-delimited list of requirements.
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121 requirements = set()
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122 if remote.capable(b'stream'):
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123 requirements.add(requirementsmod.REVLOGV1_REQUIREMENT)
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124 else:
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125 streamreqs = remote.capable(b'streamreqs')
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126 # This is weird and shouldn't happen with modern servers.
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parents: 26445
diff changeset
127 if not streamreqs:
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parents: 42823
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128 pullop.repo.ui.warn(
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parents: 42823
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129 _(
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130 b'warning: stream clone requested but server has them '
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diff changeset
131 b'disabled\n'
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parents: 42823
diff changeset
132 )
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parents: 42823
diff changeset
133 )
26446
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diff changeset
134 return False, None
3ea10bb761ce streamclone: refactor code for deciding to stream clone
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parents: 26445
diff changeset
135
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136 streamreqs = set(streamreqs.split(b','))
26446
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parents: 26445
diff changeset
137 # Server requires something we don't support. Bail.
48359
6d2ddea0721a stream-clone: filter possible missing requirements using all supported one
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
138 missingreqs = streamreqs - repo.supported
32299
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
139 if missingreqs:
076f1ff43f0f clone: warn when streaming was requested but couldn't be performed
Siddharth Agarwal <sid0@fb.com>
parents: 30995
diff changeset
140 pullop.repo.ui.warn(
43076
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parents: 42823
diff changeset
141 _(
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diff changeset
142 b'warning: stream clone requested but client is missing '
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Augie Fackler <augie@google.com>
parents: 43076
diff changeset
143 b'requirements: %s\n'
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144 )
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diff changeset
145 % b', '.join(sorted(missingreqs))
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parents: 42823
diff changeset
146 )
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parents: 42823
diff changeset
147 pullop.repo.ui.warn(
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diff changeset
148 _(
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diff changeset
149 b'(see https://www.mercurial-scm.org/wiki/MissingRequirement '
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diff changeset
150 b'for more information)\n'
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diff changeset
151 )
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parents: 42823
diff changeset
152 )
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diff changeset
153 return False, None
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parents: 26445
diff changeset
154 requirements = streamreqs
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parents: 26445
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155
3ea10bb761ce streamclone: refactor code for deciding to stream clone
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parents: 26445
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156 return True, requirements
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parents: 26445
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157
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158
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Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
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159 def maybeperformlegacystreamclone(pullop) -> None:
26462
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
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parents: 26461
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160 """Possibly perform a legacy stream clone operation.
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
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161
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
162 Legacy stream clones are performed as part of pull but before all other
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
163 operations.
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
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164
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
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165 A legacy stream clone will not be performed if a bundle2 stream clone is
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
166 supported.
3b0ec09192ae streamclone: rename and document maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26461
diff changeset
167 """
39716
b10d145837bc localrepo: extract resolving of opener options to standalone functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38823
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168 from . import localrepo
b10d145837bc localrepo: extract resolving of opener options to standalone functions
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parents: 38823
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169
26466
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
170 supported, requirements = canperformstreamclone(pullop)
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362793295640 streamclone: refactor maybeperformstreamclone to take a pullop
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26447
diff changeset
171
26446
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diff changeset
172 if not supported:
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26445
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173 return
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parents: 26445
diff changeset
174
26466
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
175 repo = pullop.repo
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
176 remote = pullop.remote
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26462
diff changeset
177
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Gregory Szorc <gregory.szorc@gmail.com>
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178 # Save remote branchmap. We will use it later to speed up branchcache
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
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179 # creation.
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180 rbranchmap = None
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Augie Fackler <augie@google.com>
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diff changeset
181 if remote.capable(b'branchmap'):
37638
65b86ee69383 streamclone: use command executor for wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35804
diff changeset
182 with remote.commandexecutor() as e:
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parents: 43076
diff changeset
183 rbranchmap = e.callcommand(b'branchmap', {}).result()
26459
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parents: 26458
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184
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185 repo.ui.status(_(b'streaming all changes\n'))
26470
4b5647d9ee13 streamclone: move "streaming all changes" message location
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26469
diff changeset
186
37638
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Gregory Szorc <gregory.szorc@gmail.com>
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diff changeset
187 with remote.commandexecutor() as e:
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Augie Fackler <augie@google.com>
parents: 43076
diff changeset
188 fp = e.callcommand(b'stream_out', {}).result()
37638
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parents: 35804
diff changeset
189
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parents: 35804
diff changeset
190 # TODO strictly speaking, this code should all be inside the context
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 35804
diff changeset
191 # manager because the context manager is supposed to ensure all wire state
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diff changeset
192 # is flushed when exiting. But the legacy peers don't do this, so it
65b86ee69383 streamclone: use command executor for wire protocol commands
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35804
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193 # doesn't matter.
26459
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Gregory Szorc <gregory.szorc@gmail.com>
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194 l = fp.readline()
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
195 try:
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Gregory Szorc <gregory.szorc@gmail.com>
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196 resp = int(l)
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Gregory Szorc <gregory.szorc@gmail.com>
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diff changeset
197 except ValueError:
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198 raise error.ResponseError(
43077
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diff changeset
199 _(b'unexpected response from remote server:'), l
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Augie Fackler <augie@google.com>
parents: 42823
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200 )
26459
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
201 if resp == 1:
43077
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Augie Fackler <augie@google.com>
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diff changeset
202 raise error.Abort(_(b'operation forbidden by server'))
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
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parents: 26458
diff changeset
203 elif resp == 2:
43077
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Augie Fackler <augie@google.com>
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diff changeset
204 raise error.Abort(_(b'locking the remote repository failed'))
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
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parents: 26458
diff changeset
205 elif resp != 0:
43077
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Augie Fackler <augie@google.com>
parents: 43076
diff changeset
206 raise error.Abort(_(b'the server sent an unknown error code'))
26459
3b28ffde133a streamclone: move streamin() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26458
diff changeset
207
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
208 l = fp.readline()
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
209 try:
43077
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Augie Fackler <augie@google.com>
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diff changeset
210 filecount, bytecount = map(int, l.split(b' ', 1))
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
211 except (ValueError, TypeError):
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
212 raise error.ResponseError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
213 _(b'unexpected response from remote server:'), l
43076
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Augie Fackler <augie@google.com>
parents: 42823
diff changeset
214 )
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
215
27850
49cfddbf54ba with: use context manager in maybeperformlegacystreamclone
Bryan O'Sullivan <bryano@fb.com>
parents: 27845
diff changeset
216 with repo.lock():
26468
19bbd53af46d streamclone: move payload header line consumption
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26467
diff changeset
217 consumev1(repo, fp, filecount, bytecount)
48618
739f2ca3aa3f stream-clone: factor computation of new clone requirement out
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
218 repo.requirements = new_stream_clone_requirements(
739f2ca3aa3f stream-clone: factor computation of new clone requirement out
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parents: 47919
diff changeset
219 repo.requirements,
739f2ca3aa3f stream-clone: factor computation of new clone requirement out
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
220 requirements,
43076
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Augie Fackler <augie@google.com>
parents: 42823
diff changeset
221 )
39716
b10d145837bc localrepo: extract resolving of opener options to standalone functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38823
diff changeset
222 repo.svfs.options = localrepo.resolvestorevfsoptions(
43076
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Augie Fackler <augie@google.com>
parents: 42823
diff changeset
223 repo.ui, repo.requirements, repo.features
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
224 )
45106
a03c177a4679 scmutil: add writereporequirements() and route requires writing through it
Pulkit Goyal <7895pulkit@gmail.com>
parents: 43117
diff changeset
225 scmutil.writereporequirements(repo)
48707
de3ac3d2c60b stream-clone: allow to change persistent-nodemap format during stream clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48695
diff changeset
226 nodemap.post_stream_cleanup(repo)
26461
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
227
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
228 if rbranchmap:
41626
328ca3b9e545 branchmap: encapsulate cache updating in the map itself
Martijn Pieters <mj@octobus.net>
parents: 40544
diff changeset
229 repo._branchcaches.replace(repo, rbranchmap)
26461
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
230
09cc3c2e9ece streamclone: move applyremotedata() into maybeperformstreamclone()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26460
diff changeset
231 repo.invalidate()
26445
f134fb33c906 streamclone: move streaming clone logic from localrepo
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26444
diff changeset
232
43076
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parents: 42823
diff changeset
233
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
234 def allowservergeneration(repo) -> bool:
26444
623743010133 streamclone: move _allowstream() from wireproto
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26443
diff changeset
235 """Whether streaming clones are allowed from the server."""
40029
51f10e6d66c7 streamclone: don't support stream clone unless repo feature present
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39855
diff changeset
236 if repository.REPO_FEATURE_STREAM_CLONE not in repo.features:
51f10e6d66c7 streamclone: don't support stream clone unless repo feature present
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39855
diff changeset
237 return False
51f10e6d66c7 streamclone: don't support stream clone unless repo feature present
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39855
diff changeset
238
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Augie Fackler <augie@google.com>
parents: 43076
diff changeset
239 if not repo.ui.configbool(b'server', b'uncompressed', untrusted=True):
32764
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
240 return False
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
241
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
242 # The way stream clone works makes it impossible to hide secret changesets.
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
243 # So don't allow this by default.
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
244 secret = phases.hassecret(repo)
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
245 if secret:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
246 return repo.ui.configbool(b'server', b'uncompressedallowsecret')
32764
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
247
33b7283a3828 streamclone: consider secret changesets (BC) (issue5589)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32299
diff changeset
248 return True
26444
623743010133 streamclone: move _allowstream() from wireproto
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26443
diff changeset
249
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
250
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
251 # This is it's own function so extensions can override it.
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
252 def _walkstreamfiles(
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
253 repo, matcher=None, phase: bool = False, obsolescence: bool = False
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
254 ):
50548
0925eaf09c8b store: make `walk` return an entry for obsolescence if requested so
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50546
diff changeset
255 return repo.store.walk(matcher, phase=phase, obsolescence=obsolescence)
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
256
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
257
52718
061bfd699a56 stream: use an utility function to report transferred bytes
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52714
diff changeset
258 def _report_transferred(repo, start_time: float, byte_count: int):
061bfd699a56 stream: use an utility function to report transferred bytes
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259 """common utility to report time it took to download the stream bundle"""
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260 elapsed = util.timer() - start_time
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261 if elapsed <= 0:
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262 elapsed = 0.001
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263 m = _(b'transferred %s in %.1f seconds (%s/sec)\n')
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264 m %= (
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265 util.bytecount(byte_count),
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266 elapsed,
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267 util.bytecount(byte_count / elapsed),
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268 )
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269 repo.ui.status(m)
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270
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271
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272 def generatev1(repo) -> tuple[int, int, Iterator[bytes]]:
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273 """Emit content for version 1 of a streaming clone.
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274
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275 This returns a 3-tuple of (file count, byte size, data iterator).
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276
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277 The data iterator consists of N entries for each file being transferred.
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278 Each file entry starts as a line with the file name and integer size
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279 delimited by a null byte.
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280
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281 The raw file data follows. Following the raw file data is the next file
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282 entry, or EOF.
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283
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284 When used on the wire protocol, an additional line indicating protocol
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285 success will be prepended to the stream. This function is not responsible
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286 for adding it.
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287
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288 This function will obtain a repository lock to ensure a consistent view of
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289 the store is captured. It therefore may raise LockError.
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290 """
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291 entries = []
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292 total_bytes = 0
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293 # Get consistent snapshot of repo, lock during scan.
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294 with repo.lock():
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295 repo.ui.debug(b'scanning\n')
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parents: 52390
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296 _test_sync_point_walk_1_2(repo)
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parents: 50288
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297 for entry in _walkstreamfiles(repo):
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parents: 50505
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298 for f in entry.files():
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parents: 50506
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299 file_size = f.file_size(repo.store.vfs)
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parents: 50506
diff changeset
300 if file_size:
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diff changeset
301 entries.append((f.unencoded_path, file_size))
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302 total_bytes += file_size
52390
11484a19cd77 stream: rename all test hook point one number up
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parents: 52389
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303 _test_sync_point_walk_3(repo)
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diff changeset
304 _test_sync_point_walk_4(repo)
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305
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306 repo.ui.debug(
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307 b'%d files, %d bytes to transfer\n' % (len(entries), total_bytes)
43076
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parents: 42823
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308 )
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309
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diff changeset
310 svfs = repo.svfs
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311 debugflag = repo.ui.debugflag
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312
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313 def emitrevlogdata() -> Iterator[bytes]:
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parents: 33257
diff changeset
314 for name, size in entries:
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315 if debugflag:
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316 repo.ui.debug(b'sending %s (%d bytes)\n' % (name, size))
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317 # partially encode name over the wire for backwards compat
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318 yield b'%s\0%d\n' % (store.encodedir(name), size)
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Yuya Nishihara <yuya@tcha.org>
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diff changeset
319 # auditing at this stage is both pointless (paths are already
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320 # trusted by the local repo) and expensive
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321 with svfs(name, b'rb', auditpath=False) as fp:
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diff changeset
322 if size <= 65536:
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323 yield fp.read(size)
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324 else:
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325 yield from util.filechunkiter(fp, limit=size)
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326
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327 return len(entries), total_bytes, emitrevlogdata()
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328
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329
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330 def generatev1wireproto(repo) -> Iterator[bytes]:
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331 """Emit content for version 1 of streaming clone suitable for the wire.
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332
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333 This is the data output from ``generatev1()`` with 2 header lines. The
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diff changeset
334 first line indicates overall success. The 2nd contains the file count and
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parents: 33499
diff changeset
335 byte size of payload.
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diff changeset
336
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337 The success line contains "0" for success, "1" for stream generation not
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diff changeset
338 allowed, and "2" for error locking the repository (possibly indicating
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diff changeset
339 a permissions error for the server process).
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340 """
35495
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341 if not allowservergeneration(repo):
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342 yield b'1\n'
35495
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343 return
ded3a63f305b streamclone: move wire protocol status code from wireproto command
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diff changeset
344
ded3a63f305b streamclone: move wire protocol status code from wireproto command
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diff changeset
345 try:
ded3a63f305b streamclone: move wire protocol status code from wireproto command
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diff changeset
346 filecount, bytecount, it = generatev1(repo)
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diff changeset
347 except error.LockError:
43077
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diff changeset
348 yield b'2\n'
35495
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diff changeset
349 return
ded3a63f305b streamclone: move wire protocol status code from wireproto command
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diff changeset
350
ded3a63f305b streamclone: move wire protocol status code from wireproto command
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diff changeset
351 # Indicates successful response.
43077
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diff changeset
352 yield b'0\n'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
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diff changeset
353 yield b'%d %d\n' % (filecount, bytecount)
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e627cc25b6f3 pyupgrade: rewrite `yield` statements in a loop to `yield from`
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diff changeset
354 yield from it
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355
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parents: 42823
diff changeset
356
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diff changeset
357 def generatebundlev1(
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
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parents: 52709
diff changeset
358 repo, compression: bytes = b'UN'
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diff changeset
359 ) -> tuple[Set[bytes], Iterator[bytes]]:
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360 """Emit content for version 1 of a stream clone bundle.
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parents: 26587
diff changeset
361
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parents: 26587
diff changeset
362 The first 4 bytes of the output ("HGS1") denote this as stream clone
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parents: 26587
diff changeset
363 bundle version 1.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
364
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
365 The next 2 bytes indicate the compression type. Only "UN" is currently
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parents: 26587
diff changeset
366 supported.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
367
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parents: 26587
diff changeset
368 The next 16 bytes are two 64-bit big endian unsigned integers indicating
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parents: 26587
diff changeset
369 file count and byte count, respectively.
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parents: 26587
diff changeset
370
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
371 The next 2 bytes is a 16-bit big endian unsigned short declaring the length
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
372 of the requirements string, including a trailing \0. The following N bytes
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
373 are the requirements string, which is ASCII containing a comma-delimited
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
374 list of repo requirements that are needed to support the data.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
375
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parents: 26587
diff changeset
376 The remaining content is the output of ``generatev1()`` (which may be
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
377 compressed in the future).
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
378
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
379 Returns a tuple of (requirements, data generator).
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
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parents: 26587
diff changeset
380 """
43077
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diff changeset
381 if compression != b'UN':
52714
10e7adbffa8c streamclone: unbyteify string args to builtin Error classes
Matt Harbison <matt_harbison@yahoo.com>
parents: 52713
diff changeset
382 raise ValueError('we do not support the compression argument yet')
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
383
48619
8475a1364909 stream-clone: factor computation of requirement of a stream clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48618
diff changeset
384 requirements = streamed_requirements(repo)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
385 requires = b','.join(sorted(requirements))
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
386
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parents: 52709
diff changeset
387 def gen() -> Iterator[bytes]:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
388 yield b'HGS1'
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
389 yield compression
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
390
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
391 filecount, bytecount, it = generatev1(repo)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
392 repo.ui.status(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
393 _(b'writing %d bytes for %d files\n') % (bytecount, filecount)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
394 )
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
395
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
396 yield struct.pack(b'>QQ', filecount, bytecount)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
397 yield struct.pack(b'>H', len(requires) + 1)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
398 yield requires + b'\0'
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
399
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
400 # This is where we'll add compression in the future.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
401 assert compression == b'UN'
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
402
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
403 progress = repo.ui.makeprogress(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
404 _(b'bundle'), total=bytecount, unit=_(b'bytes')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
405 )
38355
e59eaf51cc0d streamclone: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38197
diff changeset
406 progress.update(0)
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
407
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
408 for chunk in it:
38355
e59eaf51cc0d streamclone: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38197
diff changeset
409 progress.increment(step=len(chunk))
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
410 yield chunk
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
411
38379
ef692614e601 progress: hide update(None) in a new complete() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 38366
diff changeset
412 progress.complete()
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
413
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
414 return requirements, gen()
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
415
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
416
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
417 def consumev1(repo, fp, filecount: int, bytecount: int) -> None:
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
418 """Apply the contents from version 1 of a streaming clone file handle.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
419
30342
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29923
diff changeset
420 This takes the output from "stream_out" and applies it to the specified
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
421 repository.
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
422
30342
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29923
diff changeset
423 Like "stream_out," the status line added by the wire protocol is not
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 29923
diff changeset
424 handled by this function.
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
425 """
27859
f55a5ace8e69 with: use context manager in streamclone consumev1
Bryan O'Sullivan <bryano@fb.com>
parents: 27850
diff changeset
426 with repo.lock():
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
427 repo.ui.status(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
428 _(b'%d files to transfer, %s of data\n')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
429 % (filecount, util.bytecount(bytecount))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
430 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
431 progress = repo.ui.makeprogress(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
432 _(b'clone'), total=bytecount, unit=_(b'bytes')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
433 )
38355
e59eaf51cc0d streamclone: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38197
diff changeset
434 progress.update(0)
30995
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 30342
diff changeset
435 start = util.timer()
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
436
29923
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
437 # TODO: get rid of (potential) inconsistency
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
438 #
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
439 # If transaction is started and any @filecache property is
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
440 # changed at this point, it causes inconsistency between
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
441 # in-memory cached property and streamclone-ed file on the
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
442 # disk. Nested transaction prevents transaction scope "clone"
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
443 # below from writing in-memory changes out at the end of it,
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
444 # even though in-memory changes are discarded at the end of it
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
445 # regardless of transaction nesting.
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
446 #
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
447 # But transaction nesting can't be simply prohibited, because
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
448 # nesting occurs also in ordinary case (e.g. enabling
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
449 # clonebundles).
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
450
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
451 with repo.transaction(b'clone'):
27897
2fdbf22a1b63 streamclone: use backgroundfilecloser (issue4889)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27896
diff changeset
452 with repo.svfs.backgroundclosing(repo.ui, expectedcount=filecount):
49292
d44e3c45f0e4 py3: replace `pycompat.xrange` by `range`
Manuel Jacob <me@manueljacob.de>
parents: 49222
diff changeset
453 for i in range(filecount):
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
454 # XXX doesn't support '\n' or '\r' in filenames
50951
d718eddf01d9 safehasattr: drop usage in favor of hasattr
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50706
diff changeset
455 if hasattr(fp, 'readline'):
50675
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
456 l = fp.readline()
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
457 else:
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
458 # inline clonebundles use a chunkbuffer, so no readline
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
459 # --> this should be small anyway, the first line
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
460 # only contains the size of the bundle
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
461 l_buf = []
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
462 while not (l_buf and l_buf[-1] == b'\n'):
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
463 l_buf.append(fp.read(1))
60f9602b413e clonebundles: add support for inline (streaming) clonebundles
Mathias De Mare <mathias.de_mare@nokia.com>
parents: 50670
diff changeset
464 l = b''.join(l_buf)
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
465 try:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
466 name, size = l.split(b'\0', 1)
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
467 size = int(size)
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
468 except (ValueError, TypeError):
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
469 raise error.ResponseError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
470 _(b'unexpected response from remote server:'), l
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
471 )
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
472 if repo.ui.debugflag:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
473 repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
474 b'adding %s (%s)\n' % (name, util.bytecount(size))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
475 )
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
476 # for backwards compat, name was partially encoded
27897
2fdbf22a1b63 streamclone: use backgroundfilecloser (issue4889)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27896
diff changeset
477 path = store.decodedir(name)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
478 with repo.svfs(path, b'w', backgroundclose=True) as ofp:
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
479 for chunk in util.filechunkiter(fp, limit=size):
38355
e59eaf51cc0d streamclone: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38197
diff changeset
480 progress.increment(step=len(chunk))
27896
1d29893240cc streamclone: indent code
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27882
diff changeset
481 ofp.write(chunk)
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
482
29923
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
483 # force @filecache properties to be reloaded from
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
484 # streamclone-ed file at next access
519a02267f90 streamclone: clear caches after writing changes into files for visibility
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29921
diff changeset
485 repo.invalidate(clearfilecache=True)
26443
d947086d8973 streamclone: move code out of exchange.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26442
diff changeset
486
38379
ef692614e601 progress: hide update(None) in a new complete() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 38366
diff changeset
487 progress.complete()
52718
061bfd699a56 stream: use an utility function to report transferred bytes
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52714
diff changeset
488 _report_transferred(repo, start, bytecount)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
489
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
490
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
491 def readbundle1header(fp) -> tuple[int, int, Set[bytes]]:
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
492 compression = fp.read(2)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
493 if compression != b'UN':
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
494 raise error.Abort(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
495 _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
496 b'only uncompressed stream clone bundles are '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
497 b'supported; got %s'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
498 )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
499 % compression
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
500 )
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
501
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
502 filecount, bytecount = struct.unpack(b'>QQ', fp.read(16))
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
503 requireslen = struct.unpack(b'>H', fp.read(2))[0]
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
504 requires = fp.read(requireslen)
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
505
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
506 if not requires.endswith(b'\0'):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
507 raise error.Abort(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
508 _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
509 b'malformed stream clone bundle: '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
510 b'requirements not properly encoded'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
511 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
512 )
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
513
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
514 requirements = set(requires.rstrip(b'\0').split(b','))
27882
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
515
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
516 return filecount, bytecount, requirements
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
517
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
518
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
519 def applybundlev1(repo, fp) -> None:
27882
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
520 """Apply the content from a stream clone bundle version 1.
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
521
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
522 We assume the 4 byte header has been read and validated and the file handle
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
523 is at the 2 byte compression identifier.
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
524 """
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
525 if len(repo):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
526 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43085
diff changeset
527 _(b'cannot apply stream clone bundle on non-empty repo')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
528 )
27882
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
529
319b0bf6ecc9 streamclone: extract code for reading header fields
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27870
diff changeset
530 filecount, bytecount, requirements = readbundle1header(fp)
48359
6d2ddea0721a stream-clone: filter possible missing requirements using all supported one
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
531 missingreqs = requirements - repo.supported
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
532 if missingreqs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
533 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43085
diff changeset
534 _(b'unable to apply stream clone: unsupported format: %s')
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
535 % b', '.join(sorted(missingreqs))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
536 )
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
537
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
538 consumev1(repo, fp, filecount, bytecount)
48707
de3ac3d2c60b stream-clone: allow to change persistent-nodemap format during stream clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48695
diff changeset
539 nodemap.post_stream_cleanup(repo)
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
540
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
541
49037
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48966
diff changeset
542 class streamcloneapplier:
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
543 """Class to manage applying streaming clone bundles.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
544
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
545 We need to wrap ``applybundlev1()`` in a dedicated type to enable bundle
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
546 readers to perform bundle type-specific functionality.
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
547 """
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
548
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
549 def __init__(self, fh) -> None:
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
550 self._fh = fh
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
551
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
552 def apply(self, repo) -> None:
26755
bb0b955d050d streamclone: support for producing and consuming stream clone bundles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26587
diff changeset
553 return applybundlev1(repo, self._fh)
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
554
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
555
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
556 # type of file to stream
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
557 _fileappend = 0 # append only file
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
558 _filefull = 1 # full snapshot file
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
559
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
560 # Source of the file
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
561 _srcstore = b's' # store (svfs)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
562 _srccache = b'c' # cache (cache)
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
563
51762
ca7bde5dbafb black: format the codebase with 23.3.0
Rapha?l Gom?s <rgomes@octobus.net>
parents: 51759
diff changeset
564
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
565 # This is it's own function so extensions can override it.
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
566 def _walkstreamfullstorefiles(repo) -> list[bytes]:
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
567 """list snapshot file from the store"""
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
568 fnames = []
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
569 if not repo.publishing():
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
570 fnames.append(b'phaseroots')
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
571 return fnames
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
572
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
573
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
574 def _filterfull(entry, copy, vfsmap):
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
575 """actually copy the snapshot files"""
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
576 src, name, ftype, data = entry
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
577 if ftype != _filefull:
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
578 return entry
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
579 return (src, name, ftype, copy(vfsmap[src].join(name)))
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
580
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
581
52043
e308439339e2 stream: rename TempCopyManager to VolatileManager
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51901
diff changeset
582 class VolatileManager:
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
583 """Manage temporary backups of volatile files during stream clone.
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
584
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
585 This class will keep open file handles for the volatile files, writing the
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
586 smaller ones on disk if the number of open file handles grow too much.
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
587
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
588 This should be used as a Python context, the file handles and copies will
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
589 be discarded when exiting the context.
49222
4ff4e23de7df clone: use better names for temp files
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 49037
diff changeset
590
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
591 The preservation can be done by calling the object on the real path
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
592 (encoded full path).
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
593
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
594 Valid filehandles for any file should be retrieved by calling `open(path)`.
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
595 """
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
596
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
597 # arbitrarily picked as "it seemed fine" and much higher than the current
52154
e4b242f9d4d9 streamclone: disable the volatile file open handle optimization on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 52046
diff changeset
598 # usage. The Windows value of 2 is actually 1 file open at a time, due to
e4b242f9d4d9 streamclone: disable the volatile file open handle optimization on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 52046
diff changeset
599 # the `flush_count = self.MAX_OPEN // 2` and `self.MAX_OPEN - 1` threshold
e4b242f9d4d9 streamclone: disable the volatile file open handle optimization on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 52046
diff changeset
600 # for flushing to disk in __call__().
e4b242f9d4d9 streamclone: disable the volatile file open handle optimization on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 52046
diff changeset
601 MAX_OPEN = 2 if pycompat.iswindows else 100
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
602
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
603 def __init__(self) -> None:
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
604 self._counter = 0
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
605 self._volatile_fps = None
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
606 self._copies = None
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
607 self._dst_dir = None
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
608
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
609 def __enter__(self):
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
610 if self._counter == 0:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
611 assert self._volatile_fps is None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
612 self._volatile_fps = {}
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
613 self._counter += 1
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
614 return self
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
615
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
616 def __exit__(self, *args, **kwars):
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
617 """discard all backups"""
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
618 self._counter -= 1
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
619 if self._counter == 0:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
620 for _size, fp in self._volatile_fps.values():
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
621 fp.close()
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
622 self._volatile_fps = None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
623 if self._copies is not None:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
624 for tmp in self._copies.values():
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
625 util.tryunlink(tmp)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
626 util.tryrmdir(self._dst_dir)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
627 self._copies = None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
628 self._dst_dir = None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
629 assert self._volatile_fps is None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
630 assert self._copies is None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
631 assert self._dst_dir is None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
632
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
633 def _init_tmp_copies(self) -> None:
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
634 """prepare a temporary directory to save volatile files
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
635
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
636 This will be used as backup if we have too many files open"""
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
637 assert 0 < self._counter
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
638 assert self._copies is None
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
639 assert self._dst_dir is None
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
640 self._copies = {}
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
641 self._dst_dir = pycompat.mkdtemp(prefix=b'hg-clone-')
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
642
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
643 def _flush_some_on_disk(self) -> None:
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
644 """move some of the open files to tempory files on disk"""
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
645 if self._copies is None:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
646 self._init_tmp_copies()
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
647 flush_count = self.MAX_OPEN // 2
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
648 for src, (size, fp) in sorted(self._volatile_fps.items())[:flush_count]:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
649 prefix = os.path.basename(src)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
650 fd, dst = pycompat.mkstemp(prefix=prefix, dir=self._dst_dir)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
651 self._copies[src] = dst
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
652 os.close(fd)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
653 # we no longer hardlink, but on the other hand we rarely do this,
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
654 # and we do it for the smallest file only and not at all in the
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
655 # common case.
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
656 with open(dst, 'wb') as bck:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
657 fp.seek(0)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
658 bck.write(fp.read())
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
659 del self._volatile_fps[src]
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
660 fp.close()
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
661
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
662 def _keep_one(self, src: bytes) -> int:
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
663 """preserve an open file handle for a given path"""
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
664 # store the file quickly to ensure we close it if any error happens
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
665 _, fp = self._volatile_fps[src] = (None, open(src, 'rb'))
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
666 fp.seek(0, os.SEEK_END)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
667 size = fp.tell()
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
668 self._volatile_fps[src] = (size, fp)
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
669 return size
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
670
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
671 def __call__(self, src: bytes) -> None:
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
672 """preserve the volatile file at src"""
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
673 assert 0 < self._counter
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
674 if len(self._volatile_fps) >= (self.MAX_OPEN - 1):
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
675 self._flush_some_on_disk()
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
676 self._keep_one(src)
50660
8c7b04e69894 stream-clone: introduce a richer TempCopyManager object
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50558
diff changeset
677
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
678 def try_keep(self, src: bytes) -> Optional[int]:
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
679 """record a volatile file and returns it size
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
680
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
681 return None if the file does not exists.
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
682
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
683 Used for cache file that are not lock protected.
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
684 """
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
685 assert 0 < self._counter
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
686 if len(self._volatile_fps) >= (self.MAX_OPEN - 1):
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
687 self._flush_some_on_disk()
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
688 try:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
689 return self._keep_one(src)
52665
24ee91ba9aa8 pyupgrade: drop usage of py3 aliases for `OSError`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52391
diff changeset
690 except OSError as err:
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
691 if err.errno not in (errno.ENOENT, errno.EPERM):
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
692 raise
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
693 return None
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
694
52044
0ad269e24075 stream: open volatile file through the manager
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52043
diff changeset
695 @contextlib.contextmanager
0ad269e24075 stream: open volatile file through the manager
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52043
diff changeset
696 def open(self, src):
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
697 assert 0 < self._counter
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
698 entry = self._volatile_fps.get(src)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
699 if entry is not None:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
700 _size, fp = entry
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
701 fp.seek(0)
52044
0ad269e24075 stream: open volatile file through the manager
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52043
diff changeset
702 yield fp
52046
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
703 else:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
704 if self._copies is None:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
705 actual_path = src
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
706 else:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
707 actual_path = self._copies.get(src, src)
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
708 with open(actual_path, 'rb') as fp:
a47f09da8bd1 stream: prefer keeping an open file handle to volatile file instead of copy
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52045
diff changeset
709 yield fp
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
710
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
711
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
712 def _makemap(repo):
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
713 """make a (src -> vfs) map for the repo"""
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
714 vfsmap = {
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
715 _srcstore: repo.svfs,
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
716 _srccache: repo.cachevfs,
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
717 }
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
718 # we keep repo.vfs out of the on purpose, ther are too many danger there
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
719 # (eg: .hg/hgrc)
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
720 assert repo.vfs not in vfsmap.values()
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
721
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
722 return vfsmap
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
723
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
724
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
725 def _emit2(repo, entries):
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
726 """actually emit the stream bundle"""
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
727 vfsmap = _makemap(repo)
47050
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
728 # we keep repo.vfs out of the on purpose, ther are too many danger there
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
729 # (eg: .hg/hgrc),
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
730 #
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
731 # this assert is duplicated (from _makemap) as author might think this is
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
732 # fine, while this is really not fine.
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
733 if repo.vfs in vfsmap.values():
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
734 raise error.ProgrammingError(
52714
10e7adbffa8c streamclone: unbyteify string args to builtin Error classes
Matt Harbison <matt_harbison@yahoo.com>
parents: 52713
diff changeset
735 'repo.vfs must not be added to vfsmap for security reasons'
47050
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
736 )
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
737
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
738 # translate the vfs one
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
739 entries = [(vfs_key, vfsmap[vfs_key], e) for (vfs_key, e) in entries]
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
740 _test_sync_point_walk_1_2(repo)
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
741
50670
9caa860dcbec stream-clone: implement decidated `get_streams` method for revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50669
diff changeset
742 max_linkrev = len(repo)
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
743 file_count = totalfilesize = 0
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
744 with VolatileManager() as volatiles:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
745 # make sure we preserve volatile files
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
746 with util.nogc():
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
747 # record the expected size of every file
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
748 for k, vfs, e in entries:
52389
a260d326458f stream: create a `e.preserve_volatiles` method directly on StoreEntry
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52388
diff changeset
749 e.preserve_volatiles(vfs, volatiles)
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
750 for f in e.files():
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
751 file_count += 1
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
752 totalfilesize += f.file_size(vfs)
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
753
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
754 progress = repo.ui.makeprogress(
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
755 _(b'bundle'), total=totalfilesize, unit=_(b'bytes')
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
756 )
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
757 progress.update(0)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
758 with progress:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
759 # the first yield release the lock on the repository
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
760 yield file_count, totalfilesize
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
761 totalbytecount = 0
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
762
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
763 for src, vfs, e in entries:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
764 entry_streams = e.get_streams(
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
765 repo=repo,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
766 vfs=vfs,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
767 volatiles=volatiles,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
768 max_changeset=max_linkrev,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
769 preserve_file_count=True,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
770 )
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
771 for name, stream, size in entry_streams:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
772 yield src
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
773 yield util.uvarintencode(len(name))
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
774 yield util.uvarintencode(size)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
775 yield name
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
776 bytecount = 0
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
777 for chunk in stream:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
778 bytecount += len(chunk)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
779 totalbytecount += len(chunk)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
780 progress.update(totalbytecount)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
781 yield chunk
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
782 if bytecount != size:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
783 # Would most likely be caused by a race due to `hg
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
784 # strip` or a revlog split
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
785 msg = _(
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
786 b'clone could only read %d bytes from %s, but '
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
787 b'expected %d bytes'
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
788 )
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
789 raise error.Abort(msg % (bytecount, name, size))
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
790
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
791
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
792 def _emit3(repo, entries) -> Iterator[bytes | None]:
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
793 """actually emit the stream bundle (v3)"""
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
794 vfsmap = _makemap(repo)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
795 # we keep repo.vfs out of the map on purpose, ther are too many dangers
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
796 # there (eg: .hg/hgrc),
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
797 #
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
798 # this assert is duplicated (from _makemap) as authors might think this is
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
799 # fine, while this is really not fine.
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
800 if repo.vfs in vfsmap.values():
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
801 raise error.ProgrammingError(
52714
10e7adbffa8c streamclone: unbyteify string args to builtin Error classes
Matt Harbison <matt_harbison@yahoo.com>
parents: 52713
diff changeset
802 'repo.vfs must not be added to vfsmap for security reasons'
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
803 )
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
804
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
805 # translate the vfs once
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
806 # we only turn this into a list for the `_test_sync`, this is not ideal
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
807 base_entries = list(entries)
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
808 _test_sync_point_walk_1_2(repo)
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
809 entries = []
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
810 with VolatileManager() as volatiles:
52043
e308439339e2 stream: rename TempCopyManager to VolatileManager
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51901
diff changeset
811 # make sure we preserve volatile files
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
812 for vfs_key, e in base_entries:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
813 vfs = vfsmap[vfs_key]
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
814 any_files = True
51590
49faa72b994e streamclone: stop listing files for entries that have no volatile files
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51589
diff changeset
815 if e.maybe_volatile:
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
816 any_files = False
52389
a260d326458f stream: create a `e.preserve_volatiles` method directly on StoreEntry
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52388
diff changeset
817 e.preserve_volatiles(vfs, volatiles)
51590
49faa72b994e streamclone: stop listing files for entries that have no volatile files
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51589
diff changeset
818 for f in e.files():
49faa72b994e streamclone: stop listing files for entries that have no volatile files
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51589
diff changeset
819 if f.is_volatile:
49faa72b994e streamclone: stop listing files for entries that have no volatile files
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51589
diff changeset
820 # record the expected size under lock
49faa72b994e streamclone: stop listing files for entries that have no volatile files
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51589
diff changeset
821 f.file_size(vfs)
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
822 any_files = True
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
823 if any_files:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
824 entries.append((vfs_key, vfsmap[vfs_key], e))
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
825
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
826 total_entry_count = len(entries)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
827
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
828 max_linkrev = len(repo)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
829 progress = repo.ui.makeprogress(
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
830 _(b'bundle'),
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
831 total=total_entry_count,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
832 unit=_(b'entry'),
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
833 )
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
834 progress.update(0)
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
835 # the first yield release the lock on the repository
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
836 yield None
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
837 with progress:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
838 yield util.uvarintencode(total_entry_count)
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
839
52388
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
840 for src, vfs, e in entries:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
841 entry_streams = e.get_streams(
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
842 repo=repo,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
843 vfs=vfs,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
844 volatiles=volatiles,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
845 max_changeset=max_linkrev,
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
846 )
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
847 yield util.uvarintencode(len(entry_streams))
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
848 for name, stream, size in entry_streams:
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
849 yield src
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
850 yield util.uvarintencode(len(name))
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
851 yield util.uvarintencode(size)
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
852 yield name
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
853 yield from stream
46574e588017 stream: start the volatile manager sooner during emission
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52154
diff changeset
854 progress.increment()
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
855
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
856
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
857 def _test_sync_point_walk_1_2(repo):
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
858 """a function for synchronisation during tests
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
859
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
860 Triggered after gather entry, but before starting to process/preserve them
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
861 under lock.
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
862
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
863 (on v1 is triggered before the actual walk start)
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
864 """
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
865
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
866
52390
11484a19cd77 stream: rename all test hook point one number up
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52389
diff changeset
867 def _test_sync_point_walk_3(repo):
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
868 """a function for synchronisation during tests
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
869
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
870 Triggered right before releasing the lock, but after computing what need
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
871 needed to compute under lock.
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
872 """
46986
faa43f09ad98 streamclone: remove sleep based "synchronisation" in tests
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46895
diff changeset
873
faa43f09ad98 streamclone: remove sleep based "synchronisation" in tests
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46895
diff changeset
874
52390
11484a19cd77 stream: rename all test hook point one number up
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52389
diff changeset
875 def _test_sync_point_walk_4(repo):
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
876 """a function for synchronisation during tests
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
877
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
878 Triggered right after releasing the lock.
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
879 """
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
880
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
881
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
882 # not really a StoreEntry, but close enough
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
883 class CacheEntry(store.SimpleStoreEntry):
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
884 """Represent an entry for Cache files
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
885
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
886 It has special logic to preserve cache file early and accept optional
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
887 presence.
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
888
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
889
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
890 (Yes... this is not really a StoreEntry, but close enough. We could have a
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
891 BaseEntry base class, bbut the store one would be identical)
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
892 """
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
893
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
894 def __init__(self, entry_path) -> None:
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
895 super().__init__(
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
896 entry_path,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
897 # we will directly deal with that in `setup_cache_file`
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
898 is_volatile=True,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
899 )
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
900
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
901 def preserve_volatiles(self, vfs, volatiles) -> None:
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
902 self._file_size = volatiles.try_keep(vfs.join(self._entry_path))
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
903 if self._file_size is None:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
904 self._files = []
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
905 else:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
906 assert self._is_volatile
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
907 self._files = [
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
908 CacheFile(
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
909 unencoded_path=self._entry_path,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
910 file_size=self._file_size,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
911 is_volatile=self._is_volatile,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
912 )
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
913 ]
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
914
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
915 def files(self) -> list[store.StoreFile]:
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
916 if self._files is None:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
917 self._files = [
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
918 CacheFile(
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
919 unencoded_path=self._entry_path,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
920 is_volatile=self._is_volatile,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
921 )
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
922 ]
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
923 return super().files()
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
924
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
925
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
926 class CacheFile(store.StoreFile):
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
927 # inform the "copy/hardlink" version that this file might be missing
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
928 # without consequences.
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
929 optional: bool = True
46986
faa43f09ad98 streamclone: remove sleep based "synchronisation" in tests
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46895
diff changeset
930
faa43f09ad98 streamclone: remove sleep based "synchronisation" in tests
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46895
diff changeset
931
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
932 def _entries_walk(repo, includes, excludes, includeobsmarkers: bool):
50549
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
933 """emit a seris of files information useful to clone a repo
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
934
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
935 return (vfs-key, entry) iterator
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
936
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
937 Where `entry` is StoreEntry. (used even for cache entries)
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
938 """
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
939 assert repo._currentlock(repo._lockref) is not None
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
940
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
941 matcher = None
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
942 if includes or excludes:
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
943 matcher = narrowspec.match(repo.root, includes, excludes)
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
944
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
945 phase = not repo.publishing()
51588
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
946 # Python is getting crazy at all the small container we creates, disabling
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
947 # the gc while we do so helps performance a lot.
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
948 with util.nogc():
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
949 entries = _walkstreamfiles(
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
950 repo,
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
951 matcher,
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
952 phase=phase,
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
953 obsolescence=includeobsmarkers,
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
954 )
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
955 for entry in entries:
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
956 yield (_srcstore, entry)
50549
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
957
51588
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
958 for name in cacheutil.cachetocopy(repo):
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
959 if repo.cachevfs.exists(name):
463e63aa547c stream-clone: disable gc for `_entries_walk` duration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51586
diff changeset
960 # not really a StoreEntry, but close enough
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
961 yield (_srccache, CacheEntry(entry_path=name))
50550
43ed1f12b00a stream-clone: yield cache entry in `_entries_walk` too
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50549
diff changeset
962
50549
06d580b8f432 stream-clone: introduce a _entries_walk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50548
diff changeset
963
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
964 def generatev2(repo, includes, excludes, includeobsmarkers: bool):
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
965 """Emit content for version 2 of a streaming clone.
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
966
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
967 the data stream consists the following entries:
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
968 1) A char representing the file destination (eg: store or cache)
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
969 2) A varint containing the length of the filename
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
970 3) A varint containing the length of file data
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
971 4) N bytes containing the filename (the internal, store-agnostic form)
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
972 5) N bytes containing the file data
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
973
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
974 Returns a 3-tuple of (file count, file size, data iterator).
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
975 """
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
976
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
977 with repo.lock():
47450
2f4ca4807033 streamingclone: extract the scanning part from the generation part
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
978 repo.ui.debug(b'scanning\n')
40339
f0e8f27768eb streamclone: pass narrowing related info in _walkstreamfiles()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 40338
diff changeset
979
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
980 entries = _entries_walk(
47450
2f4ca4807033 streamingclone: extract the scanning part from the generation part
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
981 repo,
2f4ca4807033 streamingclone: extract the scanning part from the generation part
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
982 includes=includes,
2f4ca4807033 streamingclone: extract the scanning part from the generation part
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
983 excludes=excludes,
2f4ca4807033 streamingclone: extract the scanning part from the generation part
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
984 includeobsmarkers=includeobsmarkers,
2f4ca4807033 streamingclone: extract the scanning part from the generation part
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
985 )
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
986 chunks = _emit2(repo, entries)
35765
56c30b31afbe streamclone: add support for cloning non append-only file
Boris Feld <boris.feld@octobus.net>
parents: 35757
diff changeset
987 first = next(chunks)
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
988 file_count, total_file_size = first
52390
11484a19cd77 stream: rename all test hook point one number up
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52389
diff changeset
989 _test_sync_point_walk_3(repo)
11484a19cd77 stream: rename all test hook point one number up
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52389
diff changeset
990 _test_sync_point_walk_4(repo)
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
991
50665
3416b46320dc stream-clone: directly use `_entries_walk` to generate stream-v2
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50664
diff changeset
992 return file_count, total_file_size, chunks
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
993
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
994
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
995 def generatev3(
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
996 repo, includes, excludes, includeobsmarkers: bool
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
997 ) -> Iterator[bytes | None]:
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
998 """Emit content for version 3 of a streaming clone.
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
999
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1000 the data stream consists the following:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1001 1) A varint E containing the number of entries (can be 0), then E entries follow
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1002 2) For each entry:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1003 2.1) The number of files in this entry (can be 0, but typically 1 or 2)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1004 2.2) For each file:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1005 2.2.1) A char representing the file destination (eg: store or cache)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1006 2.2.2) A varint N containing the length of the filename
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1007 2.2.3) A varint M containing the length of file data
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1008 2.2.4) N bytes containing the filename (the internal, store-agnostic form)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1009 2.2.5) M bytes containing the file data
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1010
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1011 Returns the data iterator.
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1012
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1013 XXX This format is experimental and subject to change. Here is a
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1014 XXX non-exhaustive list of things this format could do or change:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1015
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1016 - making it easier to write files in parallel
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1017 - holding the lock for a shorter time
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1018 - improving progress information
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1019 - ways to adjust the number of expected entries/files ?
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1020 """
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1021
51589
6e4c8366c5ce stream-clone: disable gc for the initial section for the v3 format
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51588
diff changeset
1022 # Python is getting crazy at all the small container we creates while
6e4c8366c5ce stream-clone: disable gc for the initial section for the v3 format
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51588
diff changeset
1023 # considering the files to preserve, disabling the gc while we do so helps
6e4c8366c5ce stream-clone: disable gc for the initial section for the v3 format
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51588
diff changeset
1024 # performance a lot.
6e4c8366c5ce stream-clone: disable gc for the initial section for the v3 format
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 51588
diff changeset
1025 with repo.lock(), util.nogc():
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1026 repo.ui.debug(b'scanning\n')
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1027
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1028 entries = _entries_walk(
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1029 repo,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1030 includes=includes,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1031 excludes=excludes,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1032 includeobsmarkers=includeobsmarkers,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1033 )
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1034 chunks = _emit3(repo, list(entries))
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1035 first = next(chunks)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1036 assert first is None
52390
11484a19cd77 stream: rename all test hook point one number up
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52389
diff changeset
1037 _test_sync_point_walk_3(repo)
11484a19cd77 stream: rename all test hook point one number up
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52389
diff changeset
1038 _test_sync_point_walk_4(repo)
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1039
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1040 return chunks
50558
58adcabc295f stream-clone: introduce the notion of an experimental "v3" version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50557
diff changeset
1041
58adcabc295f stream-clone: introduce the notion of an experimental "v3" version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50557
diff changeset
1042
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1043 @contextlib.contextmanager
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1044 def nested(*ctxs):
39773
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1045 this = ctxs[0]
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1046 rest = ctxs[1:]
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1047 with this:
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1048 if rest:
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1049 with nested(*rest):
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1050 yield
97f2992c26f6 streamclone: reimplement nested context manager
Augie Fackler <augie@google.com>
parents: 39716
diff changeset
1051 else:
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1052 yield
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1053
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1054
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1055 def consumev2(repo, fp, filecount: int, filesize: int) -> None:
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1056 """Apply the contents from a version 2 streaming clone.
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1057
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1058 Data is read from an object that only needs to provide a ``read(size)``
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1059 method.
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1060 """
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1061 with repo.lock():
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1062 repo.ui.status(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1063 _(b'%d files to transfer, %s of data\n')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1064 % (filecount, util.bytecount(filesize))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1065 )
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1066
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1067 start = util.timer()
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1068 progress = repo.ui.makeprogress(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1069 _(b'clone'), total=filesize, unit=_(b'bytes')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1070 )
38355
e59eaf51cc0d streamclone: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38197
diff changeset
1071 progress.update(0)
52719
6feb3b3029b5 stream: consistently close progress before reporting time
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52718
diff changeset
1072 byte_count = 0
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1073
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1074 vfsmap = _makemap(repo)
47050
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1075 # we keep repo.vfs out of the on purpose, ther are too many danger
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1076 # there (eg: .hg/hgrc),
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1077 #
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1078 # this assert is duplicated (from _makemap) as author might think this
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1079 # is fine, while this is really not fine.
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1080 if repo.vfs in vfsmap.values():
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1081 raise error.ProgrammingError(
52714
10e7adbffa8c streamclone: unbyteify string args to builtin Error classes
Matt Harbison <matt_harbison@yahoo.com>
parents: 52713
diff changeset
1082 'repo.vfs must not be added to vfsmap for security reasons'
47050
65c519661991 stream: double check that self.vfs is *not* in the vfsmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 46989
diff changeset
1083 )
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1084
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1085 with repo.transaction(b'clone'):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1086 ctxs = (vfs.backgroundclosing(repo.ui) for vfs in vfsmap.values())
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1087 with nested(*ctxs):
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1088 for i in range(filecount):
35803
3ad3aaeb1134 streamclone: use readexactly when reading stream v2
Boris Feld <boris.feld@octobus.net>
parents: 35802
diff changeset
1089 src = util.readexactly(fp, 1)
35767
5f5fb279fd39 streamclone: also stream caches to the client
Boris Feld <boris.feld@octobus.net>
parents: 35765
diff changeset
1090 vfs = vfsmap[src]
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1091 namelen = util.uvarintdecodestream(fp)
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1092 datalen = util.uvarintdecodestream(fp)
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1093
35803
3ad3aaeb1134 streamclone: use readexactly when reading stream v2
Boris Feld <boris.feld@octobus.net>
parents: 35802
diff changeset
1094 name = util.readexactly(fp, namelen)
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1095
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1096 if repo.ui.debugflag:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1097 repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1098 b'adding [%s] %s (%s)\n'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1099 % (src, name, util.bytecount(datalen))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1100 )
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1101
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1102 with vfs(name, b'w') as ofp:
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1103 for chunk in util.filechunkiter(fp, limit=datalen):
52719
6feb3b3029b5 stream: consistently close progress before reporting time
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52718
diff changeset
1104 byte_count += len(chunk)
38355
e59eaf51cc0d streamclone: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38197
diff changeset
1105 progress.increment(step=len(chunk))
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1106 ofp.write(chunk)
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1107
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1108 # force @filecache properties to be reloaded from
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1109 # streamclone-ed file at next access
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1110 repo.invalidate(clearfilecache=True)
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1111
38379
ef692614e601 progress: hide update(None) in a new complete() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 38366
diff changeset
1112 progress.complete()
52719
6feb3b3029b5 stream: consistently close progress before reporting time
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52718
diff changeset
1113 _report_transferred(repo, start, byte_count)
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1114
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1115
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1116 def consumev3(repo, fp) -> None:
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1117 """Apply the contents from a version 3 streaming clone.
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1118
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1119 Data is read from an object that only needs to provide a ``read(size)``
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1120 method.
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1121 """
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1122 with repo.lock():
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1123 start = util.timer()
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1124
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1125 entrycount = util.uvarintdecodestream(fp)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1126 repo.ui.status(_(b'%d entries to transfer\n') % (entrycount))
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1127
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1128 progress = repo.ui.makeprogress(
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1129 _(b'clone'),
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1130 total=entrycount,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1131 unit=_(b'entries'),
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1132 )
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1133 progress.update(0)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1134 bytes_transferred = 0
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1135
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1136 vfsmap = _makemap(repo)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1137 # we keep repo.vfs out of the on purpose, there are too many dangers
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1138 # there (eg: .hg/hgrc),
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1139 #
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1140 # this assert is duplicated (from _makemap) as authors might think this
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1141 # is fine, while this is really not fine.
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1142 if repo.vfs in vfsmap.values():
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1143 raise error.ProgrammingError(
52714
10e7adbffa8c streamclone: unbyteify string args to builtin Error classes
Matt Harbison <matt_harbison@yahoo.com>
parents: 52713
diff changeset
1144 'repo.vfs must not be added to vfsmap for security reasons'
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1145 )
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1146
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1147 with repo.transaction(b'clone'):
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1148 ctxs = (vfs.backgroundclosing(repo.ui) for vfs in vfsmap.values())
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1149 with nested(*ctxs):
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1150 for i in range(entrycount):
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1151 filecount = util.uvarintdecodestream(fp)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1152 if filecount == 0:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1153 if repo.ui.debugflag:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1154 repo.ui.debug(b'entry with no files [%d]\n' % (i))
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1155 for i in range(filecount):
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1156 src = util.readexactly(fp, 1)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1157 vfs = vfsmap[src]
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1158 namelen = util.uvarintdecodestream(fp)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1159 datalen = util.uvarintdecodestream(fp)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1160
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1161 name = util.readexactly(fp, namelen)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1162
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1163 if repo.ui.debugflag:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1164 msg = b'adding [%s] %s (%s)\n'
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1165 msg %= (src, name, util.bytecount(datalen))
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1166 repo.ui.debug(msg)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1167 bytes_transferred += datalen
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1168
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1169 with vfs(name, b'w') as ofp:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1170 for chunk in util.filechunkiter(fp, limit=datalen):
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1171 ofp.write(chunk)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1172 progress.increment(step=1)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1173
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1174 # force @filecache properties to be reloaded from
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1175 # streamclone-ed file at next access
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1176 repo.invalidate(clearfilecache=True)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1177
52719
6feb3b3029b5 stream: consistently close progress before reporting time
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52718
diff changeset
1178 progress.complete()
52718
061bfd699a56 stream: use an utility function to report transferred bytes
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52714
diff changeset
1179 _report_transferred(repo, start, bytes_transferred)
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1180
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1181
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1182 def applybundlev2(
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1183 repo, fp, filecount: int, filesize: int, requirements: Iterable[bytes]
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1184 ) -> None:
39716
b10d145837bc localrepo: extract resolving of opener options to standalone functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38823
diff changeset
1185 from . import localrepo
b10d145837bc localrepo: extract resolving of opener options to standalone functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38823
diff changeset
1186
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1187 missingreqs = [r for r in requirements if r not in repo.supported]
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1188 if missingreqs:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1189 raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43085
diff changeset
1190 _(b'unable to apply stream clone: unsupported format: %s')
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
1191 % b', '.join(sorted(missingreqs))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1192 )
35756
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1193
cfdccd560b66 streamclone: define first iteration of version 2 of stream format
Boris Feld <boris.feld@octobus.net>
parents: 35495
diff changeset
1194 consumev2(repo, fp, filecount, filesize)
35804
2d3e486d09d0 streamclone: move requirement update into consumev2
Boris Feld <boris.feld@octobus.net>
parents: 35803
diff changeset
1195
48618
739f2ca3aa3f stream-clone: factor computation of new clone requirement out
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
1196 repo.requirements = new_stream_clone_requirements(
739f2ca3aa3f stream-clone: factor computation of new clone requirement out
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
1197 repo.requirements,
739f2ca3aa3f stream-clone: factor computation of new clone requirement out
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47919
diff changeset
1198 requirements,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1199 )
39716
b10d145837bc localrepo: extract resolving of opener options to standalone functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38823
diff changeset
1200 repo.svfs.options = localrepo.resolvestorevfsoptions(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1201 repo.ui, repo.requirements, repo.features
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42823
diff changeset
1202 )
45106
a03c177a4679 scmutil: add writereporequirements() and route requires writing through it
Pulkit Goyal <7895pulkit@gmail.com>
parents: 43117
diff changeset
1203 scmutil.writereporequirements(repo)
48707
de3ac3d2c60b stream-clone: allow to change persistent-nodemap format during stream clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48695
diff changeset
1204 nodemap.post_stream_cleanup(repo)
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1205
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1206
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1207 def applybundlev3(repo, fp, requirements: Iterable[bytes]) -> None:
50706
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1208 from . import localrepo
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1209
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1210 missingreqs = [r for r in requirements if r not in repo.supported]
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1211 if missingreqs:
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1212 msg = _(b'unable to apply stream clone: unsupported format: %s')
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1213 msg %= b', '.join(sorted(missingreqs))
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1214 raise error.Abort(msg)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1215
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1216 consumev3(repo, fp)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1217
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1218 repo.requirements = new_stream_clone_requirements(
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1219 repo.requirements,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1220 requirements,
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1221 )
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1222 repo.svfs.options = localrepo.resolvestorevfsoptions(
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1223 repo.ui, repo.requirements, repo.features
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1224 )
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1225 scmutil.writereporequirements(repo)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1226 nodemap.post_stream_cleanup(repo)
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1227
0452af304808 stream-clone: add a v3 version of the protocol
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 50675
diff changeset
1228
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1229 def _copy_files(src_vfs_map, dst_vfs_map, entries, progress) -> bool:
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1230 hardlink = [True]
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1231
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1232 def copy_used():
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1233 hardlink[0] = False
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1234 progress.topic = _(b'copying')
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1235
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1236 for k, path, optional in entries:
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1237 src_vfs = src_vfs_map[k]
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1238 dst_vfs = dst_vfs_map[k]
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1239 src_path = src_vfs.join(path)
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1240 dst_path = dst_vfs.join(path)
47863
132525ead0db clone: properly create target directories during local clone (issue6581)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47787
diff changeset
1241 # We cannot use dirname and makedirs of dst_vfs here because the store
132525ead0db clone: properly create target directories during local clone (issue6581)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47787
diff changeset
1242 # encoding confuses them. See issue 6581 for details.
132525ead0db clone: properly create target directories during local clone (issue6581)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47787
diff changeset
1243 dirname = os.path.dirname(dst_path)
132525ead0db clone: properly create target directories during local clone (issue6581)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47787
diff changeset
1244 if not os.path.exists(dirname):
132525ead0db clone: properly create target directories during local clone (issue6581)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47787
diff changeset
1245 util.makedirs(dirname)
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1246 dst_vfs.register_file(path)
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1247 # XXX we could use the #nb_bytes argument.
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1248 try:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1249 util.copyfile(
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1250 src_path,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1251 dst_path,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1252 hardlink=hardlink[0],
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1253 no_hardlink_cb=copy_used,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1254 check_fs_hardlink=False,
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1255 )
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1256 except FileNotFoundError:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1257 if not optional:
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1258 raise
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1259 progress.increment()
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1260 return hardlink[0]
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1261
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1262
52713
f5471af96a52 typing: add trivial type annotations to `mercurial/streamclone.py`
Matt Harbison <matt_harbison@yahoo.com>
parents: 52709
diff changeset
1263 def local_copy(src_repo, dest_repo) -> None:
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1264 """copy all content from one local repository to another
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1265
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1266 This is useful for local clone"""
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1267 src_store_requirements = {
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1268 r
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1269 for r in src_repo.requirements
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1270 if r not in requirementsmod.WORKING_DIR_REQUIREMENTS
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1271 }
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1272 dest_store_requirements = {
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1273 r
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1274 for r in dest_repo.requirements
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1275 if r not in requirementsmod.WORKING_DIR_REQUIREMENTS
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1276 }
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1277 assert src_store_requirements == dest_store_requirements
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1278
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1279 with dest_repo.lock():
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1280 with src_repo.lock():
47454
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1281 # bookmark is not integrated to the streaming as it might use the
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1282 # `repo.vfs` and they are too many sentitive data accessible
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1283 # through `repo.vfs` to expose it to streaming clone.
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1284 src_book_vfs = bookmarks.bookmarksvfs(src_repo)
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1285 srcbookmarks = src_book_vfs.join(b'bookmarks')
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1286 bm_count = 0
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1287 if os.path.exists(srcbookmarks):
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1288 bm_count = 1
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1289
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1290 entries = _entries_walk(
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1291 src_repo,
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1292 includes=None,
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1293 excludes=None,
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1294 includeobsmarkers=True,
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1295 )
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1296 entries = list(entries)
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1297 src_vfs_map = _makemap(src_repo)
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1298 dest_vfs_map = _makemap(dest_repo)
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1299 total_files = sum(len(e[1].files()) for e in entries) + bm_count
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1300 progress = src_repo.ui.makeprogress(
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1301 topic=_(b'linking'),
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1302 total=total_files,
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1303 unit=_(b'files'),
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1304 )
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1305 # copy files
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1306 #
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1307 # We could copy the full file while the source repository is locked
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1308 # and the other one without the lock. However, in the linking case,
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1309 # this would also requires checks that nobody is appending any data
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1310 # to the files while we do the clone, so this is not done yet. We
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1311 # could do this blindly when copying files.
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1312 files = [
52391
3f0cf7bb3086 stream: preserve volatile cache early
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 52390
diff changeset
1313 (vfs_key, f.unencoded_path, f.optional)
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1314 for vfs_key, e in entries
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1315 for f in e.files()
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1316 ]
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1317 hardlink = _copy_files(src_vfs_map, dest_vfs_map, files, progress)
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1318
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1319 # copy bookmarks over
47454
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1320 if bm_count:
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1321 dst_book_vfs = bookmarks.bookmarksvfs(dest_repo)
d370256636fe clone: also report the bookmark file as copied
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47453
diff changeset
1322 dstbookmarks = dst_book_vfs.join(b'bookmarks')
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1323 util.copyfile(srcbookmarks, dstbookmarks)
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1324 progress.complete()
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1325 if hardlink:
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1326 msg = b'linked %d files\n'
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1327 else:
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1328 msg = b'copied %d files\n'
50663
f2ae815ae34c local-clone: perform the hardlink/copy based from _entries_walk returns
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50660
diff changeset
1329 src_repo.ui.debug(msg % total_files)
47453
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1330
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1331 with dest_repo.transaction(b"localclone") as tr:
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1332 dest_repo.store.write(tr)
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1333
377d8fc20e34 clone: reuse the stream clone logic for local clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47450
diff changeset
1334 # clean up transaction file as they do not make sense
50288
d89eecf9605e undo-files: no longer pass the `repo` to `cleanup_undo_files`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 50286
diff changeset
1335 transaction.cleanup_undo_files(dest_repo.ui.warn, dest_repo.vfs_map)