Mercurial > hg
annotate mercurial/streamclone.py @ 45548:25e365d5aa8f
rebase: add dryrun property to rebaseruntime
I want to be able to check the property in
`rebaseruntime._rebasenode()`. Passing the value via the runtime is a
convenient way.
Differential Revision: https://phab.mercurial-scm.org/D9074
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Fri, 18 Sep 2020 15:40:26 -0700 |
parents | a03c177a4679 |
children | ee91966aec0f |
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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 absolute_import |
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9 |
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10 import contextlib |
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11 import os |
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12 import struct |
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13 |
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14 from .i18n import _ |
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15 from .pycompat import open |
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16 from .interfaces import repository |
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17 from . import ( |
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18 cacheutil, |
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19 error, |
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20 narrowspec, |
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21 phases, |
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22 pycompat, |
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23 scmutil, |
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24 store, |
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25 util, |
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26 ) |
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27 |
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28 |
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29 def canperformstreamclone(pullop, bundle2=False): |
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30 """Whether it is possible to perform a streaming clone as part of pull. |
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31 |
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32 ``bundle2`` will cause the function to consider stream clone through |
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33 bundle2 and only through bundle2. |
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34 |
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35 Returns a tuple of (supported, requirements). ``supported`` is True if |
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36 streaming clone is supported and False otherwise. ``requirements`` is |
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37 a set of repo requirements from the remote, or ``None`` if stream clone |
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38 isn't supported. |
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39 """ |
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40 repo = pullop.repo |
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41 remote = pullop.remote |
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42 |
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43 bundle2supported = False |
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44 if pullop.canusebundle2: |
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45 if b'v2' in pullop.remotebundle2caps.get(b'stream', []): |
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46 bundle2supported = True |
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47 # else |
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48 # Server doesn't support bundle2 stream clone or doesn't support |
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49 # the versions we support. Fall back and possibly allow legacy. |
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50 |
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51 # Ensures legacy code path uses available bundle2. |
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52 if bundle2supported and not bundle2: |
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53 return False, None |
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54 # Ensures bundle2 doesn't try to do a stream clone if it isn't supported. |
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55 elif bundle2 and not bundle2supported: |
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56 return False, None |
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57 |
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58 # Streaming clone only works on empty repositories. |
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59 if len(repo): |
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60 return False, None |
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61 |
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62 # Streaming clone only works if all data is being requested. |
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63 if pullop.heads: |
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64 return False, None |
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65 |
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66 streamrequested = pullop.streamclonerequested |
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67 |
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68 # If we don't have a preference, let the server decide for us. This |
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69 # likely only comes into play in LANs. |
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70 if streamrequested is None: |
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71 # The server can advertise whether to prefer streaming clone. |
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72 streamrequested = remote.capable(b'stream-preferred') |
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73 |
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74 if not streamrequested: |
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75 return False, None |
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76 |
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77 # In order for stream clone to work, the client has to support all the |
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78 # requirements advertised by the server. |
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79 # |
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80 # The server advertises its requirements via the "stream" and "streamreqs" |
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81 # capability. "stream" (a value-less capability) is advertised if and only |
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82 # if the only requirement is "revlogv1." Else, the "streamreqs" capability |
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83 # is advertised and contains a comma-delimited list of requirements. |
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84 requirements = set() |
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85 if remote.capable(b'stream'): |
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86 requirements.add(b'revlogv1') |
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87 else: |
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88 streamreqs = remote.capable(b'streamreqs') |
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89 # This is weird and shouldn't happen with modern servers. |
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90 if not streamreqs: |
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91 pullop.repo.ui.warn( |
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92 _( |
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93 b'warning: stream clone requested but server has them ' |
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94 b'disabled\n' |
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95 ) |
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96 ) |
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97 return False, None |
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98 |
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99 streamreqs = set(streamreqs.split(b',')) |
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100 # Server requires something we don't support. Bail. |
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101 missingreqs = streamreqs - repo.supportedformats |
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102 if missingreqs: |
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103 pullop.repo.ui.warn( |
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104 _( |
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105 b'warning: stream clone requested but client is missing ' |
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106 b'requirements: %s\n' |
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107 ) |
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108 % b', '.join(sorted(missingreqs)) |
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109 ) |
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110 pullop.repo.ui.warn( |
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111 _( |
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112 b'(see https://www.mercurial-scm.org/wiki/MissingRequirement ' |
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113 b'for more information)\n' |
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114 ) |
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115 ) |
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116 return False, None |
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117 requirements = streamreqs |
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118 |
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119 return True, requirements |
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120 |
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121 |
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122 def maybeperformlegacystreamclone(pullop): |
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123 """Possibly perform a legacy stream clone operation. |
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124 |
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125 Legacy stream clones are performed as part of pull but before all other |
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126 operations. |
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127 |
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128 A legacy stream clone will not be performed if a bundle2 stream clone is |
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129 supported. |
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130 """ |
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131 from . import localrepo |
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132 |
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133 supported, requirements = canperformstreamclone(pullop) |
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134 |
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135 if not supported: |
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136 return |
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137 |
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138 repo = pullop.repo |
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139 remote = pullop.remote |
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140 |
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141 # Save remote branchmap. We will use it later to speed up branchcache |
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142 # creation. |
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143 rbranchmap = None |
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144 if remote.capable(b'branchmap'): |
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145 with remote.commandexecutor() as e: |
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146 rbranchmap = e.callcommand(b'branchmap', {}).result() |
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147 |
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148 repo.ui.status(_(b'streaming all changes\n')) |
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149 |
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150 with remote.commandexecutor() as e: |
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151 fp = e.callcommand(b'stream_out', {}).result() |
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152 |
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153 # TODO strictly speaking, this code should all be inside the context |
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154 # manager because the context manager is supposed to ensure all wire state |
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155 # is flushed when exiting. But the legacy peers don't do this, so it |
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156 # doesn't matter. |
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157 l = fp.readline() |
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158 try: |
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159 resp = int(l) |
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160 except ValueError: |
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161 raise error.ResponseError( |
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162 _(b'unexpected response from remote server:'), l |
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163 ) |
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164 if resp == 1: |
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165 raise error.Abort(_(b'operation forbidden by server')) |
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166 elif resp == 2: |
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167 raise error.Abort(_(b'locking the remote repository failed')) |
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168 elif resp != 0: |
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169 raise error.Abort(_(b'the server sent an unknown error code')) |
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170 |
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171 l = fp.readline() |
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172 try: |
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173 filecount, bytecount = map(int, l.split(b' ', 1)) |
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174 except (ValueError, TypeError): |
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175 raise error.ResponseError( |
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176 _(b'unexpected response from remote server:'), l |
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177 ) |
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178 |
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179 with repo.lock(): |
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180 consumev1(repo, fp, filecount, bytecount) |
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181 |
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182 # new requirements = old non-format requirements + |
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183 # new format-related remote requirements |
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184 # requirements from the streamed-in repository |
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185 repo.requirements = requirements | ( |
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186 repo.requirements - repo.supportedformats |
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187 ) |
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188 repo.svfs.options = localrepo.resolvestorevfsoptions( |
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189 repo.ui, repo.requirements, repo.features |
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190 ) |
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191 scmutil.writereporequirements(repo) |
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192 |
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193 if rbranchmap: |
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194 repo._branchcaches.replace(repo, rbranchmap) |
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195 |
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196 repo.invalidate() |
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197 |
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198 |
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199 def allowservergeneration(repo): |
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200 """Whether streaming clones are allowed from the server.""" |
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201 if repository.REPO_FEATURE_STREAM_CLONE not in repo.features: |
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202 return False |
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203 |
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204 if not repo.ui.configbool(b'server', b'uncompressed', untrusted=True): |
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205 return False |
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206 |
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207 # The way stream clone works makes it impossible to hide secret changesets. |
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208 # So don't allow this by default. |
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209 secret = phases.hassecret(repo) |
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210 if secret: |
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211 return repo.ui.configbool(b'server', b'uncompressedallowsecret') |
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212 |
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213 return True |
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214 |
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215 |
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216 # This is it's own function so extensions can override it. |
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217 def _walkstreamfiles(repo, matcher=None): |
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218 return repo.store.walk(matcher) |
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219 |
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220 |
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221 def generatev1(repo): |
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222 """Emit content for version 1 of a streaming clone. |
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223 |
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224 This returns a 3-tuple of (file count, byte size, data iterator). |
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225 |
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226 The data iterator consists of N entries for each file being transferred. |
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227 Each file entry starts as a line with the file name and integer size |
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228 delimited by a null byte. |
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229 |
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230 The raw file data follows. Following the raw file data is the next file |
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231 entry, or EOF. |
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232 |
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233 When used on the wire protocol, an additional line indicating protocol |
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234 success will be prepended to the stream. This function is not responsible |
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235 for adding it. |
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236 |
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237 This function will obtain a repository lock to ensure a consistent view of |
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238 the store is captured. It therefore may raise LockError. |
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239 """ |
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240 entries = [] |
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241 total_bytes = 0 |
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242 # Get consistent snapshot of repo, lock during scan. |
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243 with repo.lock(): |
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244 repo.ui.debug(b'scanning\n') |
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245 for name, ename, size in _walkstreamfiles(repo): |
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246 if size: |
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247 entries.append((name, size)) |
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248 total_bytes += size |
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249 |
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250 repo.ui.debug( |
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251 b'%d files, %d bytes to transfer\n' % (len(entries), total_bytes) |
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252 ) |
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253 |
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254 svfs = repo.svfs |
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255 debugflag = repo.ui.debugflag |
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256 |
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257 def emitrevlogdata(): |
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258 for name, size in entries: |
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259 if debugflag: |
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260 repo.ui.debug(b'sending %s (%d bytes)\n' % (name, size)) |
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261 # partially encode name over the wire for backwards compat |
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262 yield b'%s\0%d\n' % (store.encodedir(name), size) |
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263 # auditing at this stage is both pointless (paths are already |
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264 # trusted by the local repo) and expensive |
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265 with svfs(name, b'rb', auditpath=False) as fp: |
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266 if size <= 65536: |
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267 yield fp.read(size) |
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268 else: |
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269 for chunk in util.filechunkiter(fp, limit=size): |
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270 yield chunk |
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271 |
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272 return len(entries), total_bytes, emitrevlogdata() |
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273 |
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274 |
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275 def generatev1wireproto(repo): |
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276 """Emit content for version 1 of streaming clone suitable for the wire. |
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277 |
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278 This is the data output from ``generatev1()`` with 2 header lines. The |
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279 first line indicates overall success. The 2nd contains the file count and |
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280 byte size of payload. |
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281 |
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282 The success line contains "0" for success, "1" for stream generation not |
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283 allowed, and "2" for error locking the repository (possibly indicating |
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284 a permissions error for the server process). |
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285 """ |
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286 if not allowservergeneration(repo): |
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287 yield b'1\n' |
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288 return |
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289 |
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290 try: |
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291 filecount, bytecount, it = generatev1(repo) |
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292 except error.LockError: |
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293 yield b'2\n' |
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294 return |
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295 |
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296 # Indicates successful response. |
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297 yield b'0\n' |
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298 yield b'%d %d\n' % (filecount, bytecount) |
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299 for chunk in it: |
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300 yield chunk |
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301 |
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302 |
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303 def generatebundlev1(repo, compression=b'UN'): |
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304 """Emit content for version 1 of a stream clone bundle. |
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305 |
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306 The first 4 bytes of the output ("HGS1") denote this as stream clone |
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307 bundle version 1. |
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308 |
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309 The next 2 bytes indicate the compression type. Only "UN" is currently |
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310 supported. |
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311 |
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312 The next 16 bytes are two 64-bit big endian unsigned integers indicating |
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313 file count and byte count, respectively. |
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314 |
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315 The next 2 bytes is a 16-bit big endian unsigned short declaring the length |
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316 of the requirements string, including a trailing \0. The following N bytes |
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317 are the requirements string, which is ASCII containing a comma-delimited |
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318 list of repo requirements that are needed to support the data. |
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319 |
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320 The remaining content is the output of ``generatev1()`` (which may be |
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321 compressed in the future). |
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322 |
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323 Returns a tuple of (requirements, data generator). |
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324 """ |
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325 if compression != b'UN': |
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326 raise ValueError(b'we do not support the compression argument yet') |
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327 |
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328 requirements = repo.requirements & repo.supportedformats |
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329 requires = b','.join(sorted(requirements)) |
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330 |
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331 def gen(): |
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332 yield b'HGS1' |
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333 yield compression |
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334 |
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335 filecount, bytecount, it = generatev1(repo) |
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336 repo.ui.status( |
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337 _(b'writing %d bytes for %d files\n') % (bytecount, filecount) |
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338 ) |
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339 |
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340 yield struct.pack(b'>QQ', filecount, bytecount) |
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341 yield struct.pack(b'>H', len(requires) + 1) |
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342 yield requires + b'\0' |
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343 |
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344 # This is where we'll add compression in the future. |
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345 assert compression == b'UN' |
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346 |
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347 progress = repo.ui.makeprogress( |
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348 _(b'bundle'), total=bytecount, unit=_(b'bytes') |
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349 ) |
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350 progress.update(0) |
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351 |
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352 for chunk in it: |
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353 progress.increment(step=len(chunk)) |
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354 yield chunk |
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355 |
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356 progress.complete() |
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357 |
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358 return requirements, gen() |
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359 |
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360 |
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361 def consumev1(repo, fp, filecount, bytecount): |
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362 """Apply the contents from version 1 of a streaming clone file handle. |
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363 |
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364 This takes the output from "stream_out" and applies it to the specified |
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365 repository. |
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366 |
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367 Like "stream_out," the status line added by the wire protocol is not |
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368 handled by this function. |
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369 """ |
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370 with repo.lock(): |
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371 repo.ui.status( |
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372 _(b'%d files to transfer, %s of data\n') |
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373 % (filecount, util.bytecount(bytecount)) |
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374 ) |
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375 progress = repo.ui.makeprogress( |
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376 _(b'clone'), total=bytecount, unit=_(b'bytes') |
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377 ) |
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378 progress.update(0) |
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379 start = util.timer() |
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380 |
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381 # TODO: get rid of (potential) inconsistency |
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382 # |
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383 # If transaction is started and any @filecache property is |
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384 # changed at this point, it causes inconsistency between |
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385 # in-memory cached property and streamclone-ed file on the |
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386 # disk. Nested transaction prevents transaction scope "clone" |
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387 # below from writing in-memory changes out at the end of it, |
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388 # even though in-memory changes are discarded at the end of it |
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389 # regardless of transaction nesting. |
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390 # |
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391 # But transaction nesting can't be simply prohibited, because |
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392 # nesting occurs also in ordinary case (e.g. enabling |
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393 # clonebundles). |
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394 |
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395 with repo.transaction(b'clone'): |
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396 with repo.svfs.backgroundclosing(repo.ui, expectedcount=filecount): |
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397 for i in pycompat.xrange(filecount): |
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398 # XXX doesn't support '\n' or '\r' in filenames |
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399 l = fp.readline() |
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400 try: |
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401 name, size = l.split(b'\0', 1) |
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402 size = int(size) |
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403 except (ValueError, TypeError): |
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404 raise error.ResponseError( |
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405 _(b'unexpected response from remote server:'), l |
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406 ) |
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407 if repo.ui.debugflag: |
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408 repo.ui.debug( |
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409 b'adding %s (%s)\n' % (name, util.bytecount(size)) |
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410 ) |
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411 # for backwards compat, name was partially encoded |
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412 path = store.decodedir(name) |
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413 with repo.svfs(path, b'w', backgroundclose=True) as ofp: |
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414 for chunk in util.filechunkiter(fp, limit=size): |
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415 progress.increment(step=len(chunk)) |
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416 ofp.write(chunk) |
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417 |
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418 # force @filecache properties to be reloaded from |
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419 # streamclone-ed file at next access |
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420 repo.invalidate(clearfilecache=True) |
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421 |
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422 elapsed = util.timer() - start |
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423 if elapsed <= 0: |
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424 elapsed = 0.001 |
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425 progress.complete() |
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426 repo.ui.status( |
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427 _(b'transferred %s in %.1f seconds (%s/sec)\n') |
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428 % ( |
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429 util.bytecount(bytecount), |
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430 elapsed, |
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431 util.bytecount(bytecount / elapsed), |
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432 ) |
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433 ) |
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434 |
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435 |
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436 def readbundle1header(fp): |
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437 compression = fp.read(2) |
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438 if compression != b'UN': |
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439 raise error.Abort( |
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440 _( |
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441 b'only uncompressed stream clone bundles are ' |
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442 b'supported; got %s' |
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443 ) |
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444 % compression |
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445 ) |
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446 |
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447 filecount, bytecount = struct.unpack(b'>QQ', fp.read(16)) |
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448 requireslen = struct.unpack(b'>H', fp.read(2))[0] |
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449 requires = fp.read(requireslen) |
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450 |
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451 if not requires.endswith(b'\0'): |
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452 raise error.Abort( |
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453 _( |
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454 b'malformed stream clone bundle: ' |
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455 b'requirements not properly encoded' |
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456 ) |
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457 ) |
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458 |
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459 requirements = set(requires.rstrip(b'\0').split(b',')) |
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460 |
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461 return filecount, bytecount, requirements |
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462 |
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463 |
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464 def applybundlev1(repo, fp): |
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465 """Apply the content from a stream clone bundle version 1. |
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466 |
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467 We assume the 4 byte header has been read and validated and the file handle |
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468 is at the 2 byte compression identifier. |
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469 """ |
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470 if len(repo): |
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471 raise error.Abort( |
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472 _(b'cannot apply stream clone bundle on non-empty repo') |
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473 ) |
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474 |
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475 filecount, bytecount, requirements = readbundle1header(fp) |
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476 missingreqs = requirements - repo.supportedformats |
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477 if missingreqs: |
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478 raise error.Abort( |
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479 _(b'unable to apply stream clone: unsupported format: %s') |
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480 % b', '.join(sorted(missingreqs)) |
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481 ) |
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482 |
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483 consumev1(repo, fp, filecount, bytecount) |
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484 |
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485 |
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486 class streamcloneapplier(object): |
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487 """Class to manage applying streaming clone bundles. |
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488 |
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489 We need to wrap ``applybundlev1()`` in a dedicated type to enable bundle |
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490 readers to perform bundle type-specific functionality. |
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491 """ |
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492 |
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493 def __init__(self, fh): |
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494 self._fh = fh |
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495 |
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496 def apply(self, repo): |
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497 return applybundlev1(repo, self._fh) |
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498 |
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499 |
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500 # type of file to stream |
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501 _fileappend = 0 # append only file |
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502 _filefull = 1 # full snapshot file |
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503 |
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504 # Source of the file |
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505 _srcstore = b's' # store (svfs) |
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506 _srccache = b'c' # cache (cache) |
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507 |
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508 # This is it's own function so extensions can override it. |
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509 def _walkstreamfullstorefiles(repo): |
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510 """list snapshot file from the store""" |
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511 fnames = [] |
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512 if not repo.publishing(): |
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513 fnames.append(b'phaseroots') |
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514 return fnames |
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515 |
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516 |
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517 def _filterfull(entry, copy, vfsmap): |
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518 """actually copy the snapshot files""" |
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519 src, name, ftype, data = entry |
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520 if ftype != _filefull: |
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521 return entry |
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522 return (src, name, ftype, copy(vfsmap[src].join(name))) |
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523 |
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524 |
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525 @contextlib.contextmanager |
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526 def maketempcopies(): |
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527 """return a function to temporary copy file""" |
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528 files = [] |
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529 try: |
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530 |
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531 def copy(src): |
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532 fd, dst = pycompat.mkstemp() |
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533 os.close(fd) |
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534 files.append(dst) |
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535 util.copyfiles(src, dst, hardlink=True) |
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536 return dst |
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537 |
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538 yield copy |
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539 finally: |
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540 for tmp in files: |
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541 util.tryunlink(tmp) |
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542 |
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543 |
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544 def _makemap(repo): |
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545 """make a (src -> vfs) map for the repo""" |
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546 vfsmap = { |
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547 _srcstore: repo.svfs, |
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548 _srccache: repo.cachevfs, |
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549 } |
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550 # we keep repo.vfs out of the on purpose, ther are too many danger there |
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551 # (eg: .hg/hgrc) |
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552 assert repo.vfs not in vfsmap.values() |
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553 |
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554 return vfsmap |
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555 |
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556 |
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557 def _emit2(repo, entries, totalfilesize): |
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558 """actually emit the stream bundle""" |
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559 vfsmap = _makemap(repo) |
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560 progress = repo.ui.makeprogress( |
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561 _(b'bundle'), total=totalfilesize, unit=_(b'bytes') |
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562 ) |
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563 progress.update(0) |
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564 with maketempcopies() as copy, progress: |
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565 # copy is delayed until we are in the try |
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566 entries = [_filterfull(e, copy, vfsmap) for e in entries] |
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567 yield None # this release the lock on the repository |
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568 seen = 0 |
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569 |
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570 for src, name, ftype, data in entries: |
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571 vfs = vfsmap[src] |
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572 yield src |
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573 yield util.uvarintencode(len(name)) |
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574 if ftype == _fileappend: |
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575 fp = vfs(name) |
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576 size = data |
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577 elif ftype == _filefull: |
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578 fp = open(data, b'rb') |
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579 size = util.fstat(fp).st_size |
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580 try: |
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581 yield util.uvarintencode(size) |
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582 yield name |
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583 if size <= 65536: |
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584 chunks = (fp.read(size),) |
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585 else: |
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586 chunks = util.filechunkiter(fp, limit=size) |
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587 for chunk in chunks: |
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588 seen += len(chunk) |
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589 progress.update(seen) |
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590 yield chunk |
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591 finally: |
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592 fp.close() |
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593 |
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594 |
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595 def generatev2(repo, includes, excludes, includeobsmarkers): |
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596 """Emit content for version 2 of a streaming clone. |
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597 |
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598 the data stream consists the following entries: |
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599 1) A char representing the file destination (eg: store or cache) |
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600 2) A varint containing the length of the filename |
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601 3) A varint containing the length of file data |
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602 4) N bytes containing the filename (the internal, store-agnostic form) |
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603 5) N bytes containing the file data |
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604 |
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605 Returns a 3-tuple of (file count, file size, data iterator). |
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606 """ |
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607 |
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608 with repo.lock(): |
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609 |
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610 entries = [] |
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611 totalfilesize = 0 |
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612 |
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613 matcher = None |
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614 if includes or excludes: |
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615 matcher = narrowspec.match(repo.root, includes, excludes) |
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616 |
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617 repo.ui.debug(b'scanning\n') |
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618 for name, ename, size in _walkstreamfiles(repo, matcher): |
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619 if size: |
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620 entries.append((_srcstore, name, _fileappend, size)) |
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621 totalfilesize += size |
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622 for name in _walkstreamfullstorefiles(repo): |
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623 if repo.svfs.exists(name): |
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624 totalfilesize += repo.svfs.lstat(name).st_size |
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625 entries.append((_srcstore, name, _filefull, None)) |
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626 if includeobsmarkers and repo.svfs.exists(b'obsstore'): |
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627 totalfilesize += repo.svfs.lstat(b'obsstore').st_size |
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628 entries.append((_srcstore, b'obsstore', _filefull, None)) |
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629 for name in cacheutil.cachetocopy(repo): |
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630 if repo.cachevfs.exists(name): |
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631 totalfilesize += repo.cachevfs.lstat(name).st_size |
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632 entries.append((_srccache, name, _filefull, None)) |
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633 |
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634 chunks = _emit2(repo, entries, totalfilesize) |
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635 first = next(chunks) |
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636 assert first is None |
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637 |
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638 return len(entries), totalfilesize, chunks |
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639 |
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640 |
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641 @contextlib.contextmanager |
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642 def nested(*ctxs): |
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643 this = ctxs[0] |
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644 rest = ctxs[1:] |
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645 with this: |
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646 if rest: |
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647 with nested(*rest): |
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648 yield |
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649 else: |
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650 yield |
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651 |
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652 |
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653 def consumev2(repo, fp, filecount, filesize): |
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654 """Apply the contents from a version 2 streaming clone. |
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655 |
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656 Data is read from an object that only needs to provide a ``read(size)`` |
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657 method. |
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658 """ |
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659 with repo.lock(): |
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660 repo.ui.status( |
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661 _(b'%d files to transfer, %s of data\n') |
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662 % (filecount, util.bytecount(filesize)) |
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663 ) |
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664 |
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665 start = util.timer() |
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666 progress = repo.ui.makeprogress( |
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667 _(b'clone'), total=filesize, unit=_(b'bytes') |
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668 ) |
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669 progress.update(0) |
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670 |
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671 vfsmap = _makemap(repo) |
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672 |
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673 with repo.transaction(b'clone'): |
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674 ctxs = (vfs.backgroundclosing(repo.ui) for vfs in vfsmap.values()) |
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675 with nested(*ctxs): |
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676 for i in range(filecount): |
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677 src = util.readexactly(fp, 1) |
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678 vfs = vfsmap[src] |
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679 namelen = util.uvarintdecodestream(fp) |
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680 datalen = util.uvarintdecodestream(fp) |
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681 |
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682 name = util.readexactly(fp, namelen) |
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683 |
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684 if repo.ui.debugflag: |
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685 repo.ui.debug( |
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686 b'adding [%s] %s (%s)\n' |
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687 % (src, name, util.bytecount(datalen)) |
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688 ) |
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689 |
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690 with vfs(name, b'w') as ofp: |
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691 for chunk in util.filechunkiter(fp, limit=datalen): |
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692 progress.increment(step=len(chunk)) |
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693 ofp.write(chunk) |
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694 |
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695 # force @filecache properties to be reloaded from |
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696 # streamclone-ed file at next access |
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697 repo.invalidate(clearfilecache=True) |
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698 |
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699 elapsed = util.timer() - start |
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700 if elapsed <= 0: |
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701 elapsed = 0.001 |
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702 repo.ui.status( |
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703 _(b'transferred %s in %.1f seconds (%s/sec)\n') |
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704 % ( |
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705 util.bytecount(progress.pos), |
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706 elapsed, |
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707 util.bytecount(progress.pos / elapsed), |
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708 ) |
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709 ) |
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710 progress.complete() |
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711 |
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712 |
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713 def applybundlev2(repo, fp, filecount, filesize, requirements): |
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714 from . import localrepo |
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715 |
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716 missingreqs = [r for r in requirements if r not in repo.supported] |
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717 if missingreqs: |
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718 raise error.Abort( |
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719 _(b'unable to apply stream clone: unsupported format: %s') |
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720 % b', '.join(sorted(missingreqs)) |
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721 ) |
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722 |
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723 consumev2(repo, fp, filecount, filesize) |
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724 |
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725 # new requirements = old non-format requirements + |
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726 # new format-related remote requirements |
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727 # requirements from the streamed-in repository |
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728 repo.requirements = set(requirements) | ( |
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729 repo.requirements - repo.supportedformats |
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730 ) |
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731 repo.svfs.options = localrepo.resolvestorevfsoptions( |
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732 repo.ui, repo.requirements, repo.features |
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733 ) |
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734 scmutil.writereporequirements(repo) |