Mercurial > hg
annotate mercurial/obsolete.py @ 43148:843da18386d5
sidedatacopies: deal with upgrading and downgrading to that format
This is quite useful to test this on real life data.
Differential Revision: https://phab.mercurial-scm.org/D6955
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Sun, 06 Oct 2019 23:36:52 -0400 |
parents | 8ff1ecfadcd1 |
children | 4353942be294 |
rev | line source |
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1 # obsolete.py - obsolete markers handling |
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2 # |
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3 # Copyright 2012 Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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4 # Logilab SA <contact@logilab.fr> |
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5 # |
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6 # This software may be used and distributed according to the terms of the |
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7 # GNU General Public License version 2 or any later version. |
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8 |
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9 """Obsolete marker handling |
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10 |
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11 An obsolete marker maps an old changeset to a list of new |
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12 changesets. If the list of new changesets is empty, the old changeset |
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13 is said to be "killed". Otherwise, the old changeset is being |
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14 "replaced" by the new changesets. |
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15 |
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16 Obsolete markers can be used to record and distribute changeset graph |
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17 transformations performed by history rewrite operations, and help |
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18 building new tools to reconcile conflicting rewrite actions. To |
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19 facilitate conflict resolution, markers include various annotations |
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20 besides old and news changeset identifiers, such as creation date or |
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21 author name. |
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22 |
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23 The old obsoleted changeset is called a "predecessor" and possible |
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24 replacements are called "successors". Markers that used changeset X as |
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25 a predecessor are called "successor markers of X" because they hold |
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26 information about the successors of X. Markers that use changeset Y as |
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27 a successors are call "predecessor markers of Y" because they hold |
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28 information about the predecessors of Y. |
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29 |
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30 Examples: |
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31 |
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32 - When changeset A is replaced by changeset A', one marker is stored: |
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33 |
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34 (A, (A',)) |
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35 |
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36 - When changesets A and B are folded into a new changeset C, two markers are |
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37 stored: |
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38 |
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39 (A, (C,)) and (B, (C,)) |
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40 |
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41 - When changeset A is simply "pruned" from the graph, a marker is created: |
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42 |
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43 (A, ()) |
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44 |
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45 - When changeset A is split into B and C, a single marker is used: |
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46 |
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47 (A, (B, C)) |
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48 |
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49 We use a single marker to distinguish the "split" case from the "divergence" |
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50 case. If two independent operations rewrite the same changeset A in to A' and |
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51 A'', we have an error case: divergent rewriting. We can detect it because |
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52 two markers will be created independently: |
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53 |
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54 (A, (B,)) and (A, (C,)) |
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55 |
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56 Format |
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57 ------ |
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58 |
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59 Markers are stored in an append-only file stored in |
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60 '.hg/store/obsstore'. |
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61 |
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62 The file starts with a version header: |
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63 |
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64 - 1 unsigned byte: version number, starting at zero. |
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65 |
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66 The header is followed by the markers. Marker format depend of the version. See |
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67 comment associated with each format for details. |
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68 |
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69 """ |
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70 from __future__ import absolute_import |
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71 |
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72 import errno |
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73 import hashlib |
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74 import struct |
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75 |
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76 from .i18n import _ |
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77 from .pycompat import getattr |
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78 from . import ( |
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79 encoding, |
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80 error, |
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81 node, |
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82 obsutil, |
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83 phases, |
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84 policy, |
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85 pycompat, |
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86 util, |
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87 ) |
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88 from .utils import dateutil |
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89 |
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90 parsers = policy.importmod(r'parsers') |
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91 |
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92 _pack = struct.pack |
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93 _unpack = struct.unpack |
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94 _calcsize = struct.calcsize |
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95 propertycache = util.propertycache |
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96 |
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97 # Options for obsolescence |
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98 createmarkersopt = b'createmarkers' |
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99 allowunstableopt = b'allowunstable' |
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100 exchangeopt = b'exchange' |
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101 |
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102 |
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103 def _getoptionvalue(repo, option): |
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104 """Returns True if the given repository has the given obsolete option |
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105 enabled. |
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106 """ |
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107 configkey = b'evolution.%s' % option |
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108 newconfig = repo.ui.configbool(b'experimental', configkey) |
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109 |
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110 # Return the value only if defined |
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111 if newconfig is not None: |
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112 return newconfig |
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113 |
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114 # Fallback on generic option |
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115 try: |
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116 return repo.ui.configbool(b'experimental', b'evolution') |
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117 except (error.ConfigError, AttributeError): |
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118 # Fallback on old-fashion config |
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119 # inconsistent config: experimental.evolution |
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120 result = set(repo.ui.configlist(b'experimental', b'evolution')) |
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121 |
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122 if b'all' in result: |
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123 return True |
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124 |
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125 # Temporary hack for next check |
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126 newconfig = repo.ui.config(b'experimental', b'evolution.createmarkers') |
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127 if newconfig: |
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128 result.add(b'createmarkers') |
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129 |
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130 return option in result |
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131 |
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132 |
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133 def getoptions(repo): |
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134 """Returns dicts showing state of obsolescence features.""" |
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135 |
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136 createmarkersvalue = _getoptionvalue(repo, createmarkersopt) |
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137 unstablevalue = _getoptionvalue(repo, allowunstableopt) |
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138 exchangevalue = _getoptionvalue(repo, exchangeopt) |
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139 |
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140 # createmarkers must be enabled if other options are enabled |
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141 if (unstablevalue or exchangevalue) and not createmarkersvalue: |
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142 raise error.Abort( |
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143 _( |
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144 b"'createmarkers' obsolete option must be enabled " |
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145 b"if other obsolete options are enabled" |
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146 ) |
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147 ) |
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148 |
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149 return { |
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150 createmarkersopt: createmarkersvalue, |
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151 allowunstableopt: unstablevalue, |
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152 exchangeopt: exchangevalue, |
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153 } |
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154 |
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155 |
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156 def isenabled(repo, option): |
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157 """Returns True if the given repository has the given obsolete option |
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158 enabled. |
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159 """ |
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160 return getoptions(repo)[option] |
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161 |
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162 |
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163 # Creating aliases for marker flags because evolve extension looks for |
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164 # bumpedfix in obsolete.py |
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165 bumpedfix = obsutil.bumpedfix |
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166 usingsha256 = obsutil.usingsha256 |
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167 |
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168 ## Parsing and writing of version "0" |
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169 # |
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170 # The header is followed by the markers. Each marker is made of: |
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171 # |
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172 # - 1 uint8 : number of new changesets "N", can be zero. |
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173 # |
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174 # - 1 uint32: metadata size "M" in bytes. |
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175 # |
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176 # - 1 byte: a bit field. It is reserved for flags used in common |
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177 # obsolete marker operations, to avoid repeated decoding of metadata |
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178 # entries. |
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179 # |
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180 # - 20 bytes: obsoleted changeset identifier. |
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181 # |
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182 # - N*20 bytes: new changesets identifiers. |
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183 # |
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184 # - M bytes: metadata as a sequence of nul-terminated strings. Each |
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185 # string contains a key and a value, separated by a colon ':', without |
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186 # additional encoding. Keys cannot contain '\0' or ':' and values |
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187 # cannot contain '\0'. |
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188 _fm0version = 0 |
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189 _fm0fixed = b'>BIB20s' |
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190 _fm0node = b'20s' |
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191 _fm0fsize = _calcsize(_fm0fixed) |
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192 _fm0fnodesize = _calcsize(_fm0node) |
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193 |
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194 |
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195 def _fm0readmarkers(data, off, stop): |
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196 # Loop on markers |
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197 while off < stop: |
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198 # read fixed part |
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199 cur = data[off : off + _fm0fsize] |
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200 off += _fm0fsize |
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201 numsuc, mdsize, flags, pre = _unpack(_fm0fixed, cur) |
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202 # read replacement |
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203 sucs = () |
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204 if numsuc: |
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205 s = _fm0fnodesize * numsuc |
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206 cur = data[off : off + s] |
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207 sucs = _unpack(_fm0node * numsuc, cur) |
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208 off += s |
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209 # read metadata |
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210 # (metadata will be decoded on demand) |
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211 metadata = data[off : off + mdsize] |
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212 if len(metadata) != mdsize: |
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213 raise error.Abort( |
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214 _( |
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215 b'parsing obsolete marker: metadata is too ' |
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216 b'short, %d bytes expected, got %d' |
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217 ) |
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218 % (mdsize, len(metadata)) |
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219 ) |
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220 off += mdsize |
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221 metadata = _fm0decodemeta(metadata) |
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222 try: |
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223 when, offset = metadata.pop(b'date', b'0 0').split(b' ') |
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224 date = float(when), int(offset) |
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225 except ValueError: |
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226 date = (0.0, 0) |
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227 parents = None |
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228 if b'p2' in metadata: |
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229 parents = (metadata.pop(b'p1', None), metadata.pop(b'p2', None)) |
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230 elif b'p1' in metadata: |
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231 parents = (metadata.pop(b'p1', None),) |
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232 elif b'p0' in metadata: |
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233 parents = () |
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234 if parents is not None: |
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235 try: |
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236 parents = tuple(node.bin(p) for p in parents) |
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237 # if parent content is not a nodeid, drop the data |
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238 for p in parents: |
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239 if len(p) != 20: |
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240 parents = None |
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241 break |
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242 except TypeError: |
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243 # if content cannot be translated to nodeid drop the data. |
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244 parents = None |
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245 |
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246 metadata = tuple(sorted(pycompat.iteritems(metadata))) |
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247 |
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248 yield (pre, sucs, flags, metadata, date, parents) |
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249 |
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250 |
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251 def _fm0encodeonemarker(marker): |
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252 pre, sucs, flags, metadata, date, parents = marker |
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253 if flags & usingsha256: |
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254 raise error.Abort(_(b'cannot handle sha256 with old obsstore format')) |
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255 metadata = dict(metadata) |
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256 time, tz = date |
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257 metadata[b'date'] = b'%r %i' % (time, tz) |
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258 if parents is not None: |
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259 if not parents: |
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260 # mark that we explicitly recorded no parents |
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261 metadata[b'p0'] = b'' |
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262 for i, p in enumerate(parents, 1): |
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263 metadata[b'p%i' % i] = node.hex(p) |
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264 metadata = _fm0encodemeta(metadata) |
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265 numsuc = len(sucs) |
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266 format = _fm0fixed + (_fm0node * numsuc) |
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267 data = [numsuc, len(metadata), flags, pre] |
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268 data.extend(sucs) |
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269 return _pack(format, *data) + metadata |
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270 |
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271 |
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272 def _fm0encodemeta(meta): |
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273 """Return encoded metadata string to string mapping. |
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274 |
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275 Assume no ':' in key and no '\0' in both key and value.""" |
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276 for key, value in pycompat.iteritems(meta): |
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277 if b':' in key or b'\0' in key: |
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278 raise ValueError(b"':' and '\0' are forbidden in metadata key'") |
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279 if b'\0' in value: |
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280 raise ValueError(b"':' is forbidden in metadata value'") |
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281 return b'\0'.join([b'%s:%s' % (k, meta[k]) for k in sorted(meta)]) |
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282 |
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283 |
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284 def _fm0decodemeta(data): |
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285 """Return string to string dictionary from encoded version.""" |
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286 d = {} |
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287 for l in data.split(b'\0'): |
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288 if l: |
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289 key, value = l.split(b':', 1) |
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290 d[key] = value |
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291 return d |
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292 |
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293 |
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294 ## Parsing and writing of version "1" |
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295 # |
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296 # The header is followed by the markers. Each marker is made of: |
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297 # |
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298 # - uint32: total size of the marker (including this field) |
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299 # |
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300 # - float64: date in seconds since epoch |
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301 # |
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302 # - int16: timezone offset in minutes |
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303 # |
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304 # - uint16: a bit field. It is reserved for flags used in common |
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305 # obsolete marker operations, to avoid repeated decoding of metadata |
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306 # entries. |
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307 # |
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308 # - uint8: number of successors "N", can be zero. |
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309 # |
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310 # - uint8: number of parents "P", can be zero. |
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311 # |
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312 # 0: parents data stored but no parent, |
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313 # 1: one parent stored, |
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314 # 2: two parents stored, |
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315 # 3: no parent data stored |
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316 # |
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317 # - uint8: number of metadata entries M |
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318 # |
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319 # - 20 or 32 bytes: predecessor changeset identifier. |
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320 # |
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321 # - N*(20 or 32) bytes: successors changesets identifiers. |
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322 # |
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323 # - P*(20 or 32) bytes: parents of the predecessors changesets. |
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324 # |
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325 # - M*(uint8, uint8): size of all metadata entries (key and value) |
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326 # |
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327 # - remaining bytes: the metadata, each (key, value) pair after the other. |
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328 _fm1version = 1 |
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329 _fm1fixed = b'>IdhHBBB20s' |
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330 _fm1nodesha1 = b'20s' |
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331 _fm1nodesha256 = b'32s' |
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332 _fm1nodesha1size = _calcsize(_fm1nodesha1) |
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333 _fm1nodesha256size = _calcsize(_fm1nodesha256) |
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334 _fm1fsize = _calcsize(_fm1fixed) |
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335 _fm1parentnone = 3 |
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336 _fm1parentshift = 14 |
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337 _fm1parentmask = _fm1parentnone << _fm1parentshift |
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338 _fm1metapair = b'BB' |
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339 _fm1metapairsize = _calcsize(_fm1metapair) |
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340 |
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341 |
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342 def _fm1purereadmarkers(data, off, stop): |
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343 # make some global constants local for performance |
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344 noneflag = _fm1parentnone |
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345 sha2flag = usingsha256 |
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346 sha1size = _fm1nodesha1size |
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347 sha2size = _fm1nodesha256size |
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348 sha1fmt = _fm1nodesha1 |
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349 sha2fmt = _fm1nodesha256 |
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350 metasize = _fm1metapairsize |
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351 metafmt = _fm1metapair |
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352 fsize = _fm1fsize |
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353 unpack = _unpack |
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354 |
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355 # Loop on markers |
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356 ufixed = struct.Struct(_fm1fixed).unpack |
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357 |
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358 while off < stop: |
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359 # read fixed part |
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360 o1 = off + fsize |
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361 t, secs, tz, flags, numsuc, numpar, nummeta, prec = ufixed(data[off:o1]) |
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362 |
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363 if flags & sha2flag: |
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364 # FIXME: prec was read as a SHA1, needs to be amended |
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365 |
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366 # read 0 or more successors |
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367 if numsuc == 1: |
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368 o2 = o1 + sha2size |
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369 sucs = (data[o1:o2],) |
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370 else: |
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371 o2 = o1 + sha2size * numsuc |
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372 sucs = unpack(sha2fmt * numsuc, data[o1:o2]) |
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373 |
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374 # read parents |
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375 if numpar == noneflag: |
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376 o3 = o2 |
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377 parents = None |
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378 elif numpar == 1: |
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379 o3 = o2 + sha2size |
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380 parents = (data[o2:o3],) |
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381 else: |
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382 o3 = o2 + sha2size * numpar |
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383 parents = unpack(sha2fmt * numpar, data[o2:o3]) |
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384 else: |
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385 # read 0 or more successors |
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386 if numsuc == 1: |
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387 o2 = o1 + sha1size |
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388 sucs = (data[o1:o2],) |
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389 else: |
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390 o2 = o1 + sha1size * numsuc |
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391 sucs = unpack(sha1fmt * numsuc, data[o1:o2]) |
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392 |
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393 # read parents |
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394 if numpar == noneflag: |
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395 o3 = o2 |
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396 parents = None |
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397 elif numpar == 1: |
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398 o3 = o2 + sha1size |
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399 parents = (data[o2:o3],) |
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400 else: |
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|
401 o3 = o2 + sha1size * numpar |
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402 parents = unpack(sha1fmt * numpar, data[o2:o3]) |
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|
403 |
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|
404 # read metadata |
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|
405 off = o3 + metasize * nummeta |
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|
406 metapairsize = unpack(b'>' + (metafmt * nummeta), data[o3:off]) |
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|
407 metadata = [] |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
408 for idx in pycompat.xrange(0, len(metapairsize), 2): |
23798
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|
409 o1 = off + metapairsize[idx] |
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|
410 o2 = o1 + metapairsize[idx + 1] |
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|
411 metadata.append((data[off:o1], data[o1:o2])) |
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|
412 off = o2 |
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|
413 |
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|
414 yield (prec, sucs, flags, tuple(metadata), (secs, tz * 60), parents) |
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|
415 |
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|
416 |
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|
417 def _fm1encodeonemarker(marker): |
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|
418 pre, sucs, flags, metadata, date, parents = marker |
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419 # determine node size |
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420 _fm1node = _fm1nodesha1 |
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|
421 if flags & usingsha256: |
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|
422 _fm1node = _fm1nodesha256 |
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|
423 numsuc = len(sucs) |
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424 numextranodes = numsuc |
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425 if parents is None: |
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|
426 numpar = _fm1parentnone |
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|
427 else: |
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|
428 numpar = len(parents) |
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|
429 numextranodes += numpar |
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|
430 formatnodes = _fm1node * numextranodes |
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|
431 formatmeta = _fm1metapair * len(metadata) |
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|
432 format = _fm1fixed + formatnodes + formatmeta |
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|
433 # tz is stored in minutes so we divide by 60 |
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|
434 tz = date[1] // 60 |
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|
435 data = [None, date[0], tz, flags, numsuc, numpar, len(metadata), pre] |
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|
436 data.extend(sucs) |
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|
437 if parents is not None: |
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|
438 data.extend(parents) |
23498
ac910b1f5658
obsstore: prefetch struct.calcsize
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23497
diff
changeset
|
439 totalsize = _calcsize(format) |
22851
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|
440 for key, value in metadata: |
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|
441 lk = len(key) |
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|
442 lv = len(value) |
34407
b6692ba7d5b0
obsmarker: crash more helpfully when metadata fields are >255bytes (issue5681)
Simon Whitaker <swhitaker@fb.com>
parents:
34388
diff
changeset
|
443 if lk > 255: |
43076
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|
444 msg = ( |
43077
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|
445 b'obsstore metadata key cannot be longer than 255 bytes' |
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|
446 b' (key "%s" is %u bytes)' |
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447 ) % (key, lk) |
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448 raise error.ProgrammingError(msg) |
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449 if lv > 255: |
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450 msg = ( |
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451 b'obsstore metadata value cannot be longer than 255 bytes' |
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452 b' (value "%s" for key "%s" is %u bytes)' |
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453 ) % (value, key, lv) |
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454 raise error.ProgrammingError(msg) |
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455 data.append(lk) |
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456 data.append(lv) |
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457 totalsize += lk + lv |
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458 data[0] = totalsize |
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459 data = [_pack(format, *data)] |
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460 for key, value in metadata: |
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461 data.append(key) |
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462 data.append(value) |
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463 return b''.join(data) |
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464 |
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465 |
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466 def _fm1readmarkers(data, off, stop): |
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467 native = getattr(parsers, 'fm1readmarkers', None) |
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468 if not native: |
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469 return _fm1purereadmarkers(data, off, stop) |
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470 return native(data, off, stop) |
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471 |
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472 |
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473 # mapping to read/write various marker formats |
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474 # <version> -> (decoder, encoder) |
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475 formats = { |
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476 _fm0version: (_fm0readmarkers, _fm0encodeonemarker), |
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477 _fm1version: (_fm1readmarkers, _fm1encodeonemarker), |
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478 } |
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479 |
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480 |
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481 def _readmarkerversion(data): |
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482 return _unpack(b'>B', data[0:1])[0] |
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483 |
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484 |
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485 @util.nogc |
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486 def _readmarkers(data, off=None, stop=None): |
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487 """Read and enumerate markers from raw data""" |
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488 diskversion = _readmarkerversion(data) |
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489 if not off: |
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490 off = 1 # skip 1 byte version number |
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491 if stop is None: |
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492 stop = len(data) |
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493 if diskversion not in formats: |
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494 msg = _(b'parsing obsolete marker: unknown version %r') % diskversion |
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495 raise error.UnknownVersion(msg, version=diskversion) |
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496 return diskversion, formats[diskversion][0](data, off, stop) |
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497 |
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498 |
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499 def encodeheader(version=_fm0version): |
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500 return _pack(b'>B', version) |
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501 |
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502 |
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503 def encodemarkers(markers, addheader=False, version=_fm0version): |
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504 # Kept separate from flushmarkers(), it will be reused for |
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505 # markers exchange. |
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506 encodeone = formats[version][1] |
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507 if addheader: |
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508 yield encodeheader(version) |
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509 for marker in markers: |
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510 yield encodeone(marker) |
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511 |
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512 |
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513 @util.nogc |
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514 def _addsuccessors(successors, markers): |
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515 for mark in markers: |
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516 successors.setdefault(mark[0], set()).add(mark) |
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517 |
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518 |
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519 @util.nogc |
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520 def _addpredecessors(predecessors, markers): |
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521 for mark in markers: |
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522 for suc in mark[1]: |
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523 predecessors.setdefault(suc, set()).add(mark) |
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524 |
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525 |
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526 @util.nogc |
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527 def _addchildren(children, markers): |
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528 for mark in markers: |
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529 parents = mark[5] |
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530 if parents is not None: |
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|
531 for p in parents: |
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532 children.setdefault(p, set()).add(mark) |
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533 |
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534 |
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|
535 def _checkinvalidmarkers(markers): |
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|
536 """search for marker with invalid data and raise error if needed |
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|
537 |
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|
538 Exist as a separated function to allow the evolve extension for a more |
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|
539 subtle handling. |
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|
540 """ |
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|
541 for mark in markers: |
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|
542 if node.nullid in mark[1]: |
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|
543 raise error.Abort( |
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544 _( |
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|
545 b'bad obsolescence marker detected: ' |
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546 b'invalid successors nullid' |
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547 ) |
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548 ) |
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549 |
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550 |
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|
551 class obsstore(object): |
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|
552 """Store obsolete markers |
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553 |
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|
554 Markers can be accessed with two mappings: |
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|
555 - predecessors[x] -> set(markers on predecessors edges of x) |
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|
556 - successors[x] -> set(markers on successors edges of x) |
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557 - children[x] -> set(markers on predecessors edges of children(x) |
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|
558 """ |
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559 |
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|
560 fields = (b'prec', b'succs', b'flag', b'meta', b'date', b'parents') |
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561 # prec: nodeid, predecessors changesets |
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562 # succs: tuple of nodeid, successor changesets (0-N length) |
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563 # flag: integer, flag field carrying modifier for the markers (see doc) |
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564 # meta: binary blob in UTF-8, encoded metadata dictionary |
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565 # date: (float, int) tuple, date of marker creation |
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566 # parents: (tuple of nodeid) or None, parents of predecessors |
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567 # None is used when no data has been recorded |
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568 |
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569 def __init__(self, svfs, defaultformat=_fm1version, readonly=False): |
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570 # caches for various obsolescence related cache |
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571 self.caches = {} |
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572 self.svfs = svfs |
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573 self._defaultformat = defaultformat |
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574 self._readonly = readonly |
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575 |
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576 def __iter__(self): |
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577 return iter(self._all) |
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578 |
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579 def __len__(self): |
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580 return len(self._all) |
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581 |
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582 def __nonzero__(self): |
35837
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583 if not self._cached(r'_all'): |
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584 try: |
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585 return self.svfs.stat(b'obsstore').st_size > 1 |
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586 except OSError as inst: |
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587 if inst.errno != errno.ENOENT: |
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588 raise |
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589 # just build an empty _all list if no obsstore exists, which |
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590 # avoids further stat() syscalls |
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591 return bool(self._all) |
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592 |
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593 __bool__ = __nonzero__ |
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594 |
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|
595 @property |
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596 def readonly(self): |
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597 """True if marker creation is disabled |
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|
598 |
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|
599 Remove me in the future when obsolete marker is always on.""" |
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600 return self._readonly |
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601 |
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602 def create( |
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603 self, |
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604 transaction, |
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|
605 prec, |
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|
606 succs=(), |
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607 flag=0, |
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608 parents=None, |
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609 date=None, |
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610 metadata=None, |
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611 ui=None, |
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612 ): |
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613 """obsolete: add a new obsolete marker |
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614 |
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|
615 * ensuring it is hashable |
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|
616 * check mandatory metadata |
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|
617 * encode metadata |
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|
618 |
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|
619 If you are a human writing code creating marker you want to use the |
3af218cf2007
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|
620 `createmarkers` function in this module instead. |
20584
224a058f7cd1
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|
621 |
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|
622 return True if a new marker have been added, False if the markers |
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|
623 already existed (no op). |
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624 """ |
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|
625 if metadata is None: |
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|
626 metadata = {} |
22222
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|
627 if date is None: |
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|
628 if b'date' in metadata: |
22222
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changeset
|
629 # as a courtesy for out-of-tree extensions |
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|
630 date = dateutil.parsedate(metadata.pop(b'date')) |
32411
08d02c1d7e67
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|
631 elif ui is not None: |
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|
632 date = ui.configdate(b'devel', b'default-date') |
32411
08d02c1d7e67
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changeset
|
633 if date is None: |
36607
c6061cadb400
util: extract all date-related utils in utils/dateutil module
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diff
changeset
|
634 date = dateutil.makedate() |
22222
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diff
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|
635 else: |
36607
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|
636 date = dateutil.makedate() |
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|
637 if len(prec) != 20: |
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|
638 raise ValueError(prec) |
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|
639 for succ in succs: |
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|
640 if len(succ) != 20: |
17117
217bfb10e6db
obsolete: fix error message at marker creation
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parents:
17076
diff
changeset
|
641 raise ValueError(succ) |
22177
a56038e6a3c9
obsstore.create: add a simple safeguard against cyclic markers
Pierre-Yves David <pierre-yves.david@fb.com>
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21166
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|
642 if prec in succs: |
40164
fee616937ef3
obsolete: convert error string to a sysstr
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40081
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|
643 raise ValueError( |
43076
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|
644 r'in-marker cycle with %s' % pycompat.sysstr(node.hex(prec)) |
2372284d9457
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|
645 ) |
22845
ef880e28e56a
obsolete: store metadata as a tuple of (key, value) pairs (API)
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parents:
22685
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|
646 |
43106
d783f945a701
py3: finish porting iteritems() to pycompat and remove source transformer
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parents:
43089
diff
changeset
|
647 metadata = tuple(sorted(pycompat.iteritems(metadata))) |
38708
ff1182d166a2
obsolete: explode if metadata contains invalid UTF-8 sequence (API)
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|
648 for k, v in metadata: |
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|
649 try: |
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|
650 # might be better to reject non-ASCII keys |
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|
651 k.decode('utf-8') |
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|
652 v.decode('utf-8') |
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|
653 except UnicodeDecodeError: |
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|
654 raise error.ProgrammingError( |
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655 b'obsstore metadata must be valid UTF-8 sequence ' |
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|
656 b'(key = %r, value = %r)' |
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|
657 % (pycompat.bytestr(k), pycompat.bytestr(v)) |
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|
658 ) |
22845
ef880e28e56a
obsolete: store metadata as a tuple of (key, value) pairs (API)
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|
659 |
33719
388901a15bfa
obsolete: use bytes() instead of str() so the node is bytes on py3
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changeset
|
660 marker = (bytes(prec), tuple(succs), int(flag), metadata, date, parents) |
20584
224a058f7cd1
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|
661 return bool(self.add(transaction, [marker])) |
17220
bdac214a4705
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|
662 |
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|
663 def add(self, transaction, markers): |
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|
664 """Add new markers to the store |
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ad0d6c2b3279
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|
665 |
17220
bdac214a4705
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|
666 Take care of filtering duplicate. |
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|
667 Return the number of new marker.""" |
22950
bb8278b289ee
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|
668 if self._readonly: |
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|
669 raise error.Abort( |
43117
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cleanup: join string literals that are already on one line
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|
670 _(b'creating obsolete markers is not enabled on this repo') |
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|
671 ) |
32774
5ffb138d7b1a
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|
672 known = set() |
5ffb138d7b1a
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|
673 getsuccessors = self.successors.get |
20030
5931489b65e0
obsolete: do not accept duplicated marker during exchange
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diff
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|
674 new = [] |
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|
675 for m in markers: |
32774
5ffb138d7b1a
obsstore: do not load all markers to detect duplication
Jun Wu <quark@fb.com>
parents:
32729
diff
changeset
|
676 if m not in getsuccessors(m[0], ()) and m not in known: |
20030
5931489b65e0
obsolete: do not accept duplicated marker during exchange
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20028
diff
changeset
|
677 known.add(m) |
5931489b65e0
obsolete: do not accept duplicated marker during exchange
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20028
diff
changeset
|
678 new.append(m) |
17220
bdac214a4705
obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents:
17219
diff
changeset
|
679 if new: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
680 f = self.svfs(b'obsstore', b'ab') |
17124
f1b7683f3f95
obsolete: move obsolete markers read/write logic to obsstore object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17117
diff
changeset
|
681 try: |
17126
8fa8717b47b6
obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17125
diff
changeset
|
682 offset = f.tell() |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
683 transaction.add(b'obsstore', offset) |
17219
494a970f68de
obsolete: refactor writemarkers to only encode them
Pierre-Yves.David@ens-lyon.org
parents:
17213
diff
changeset
|
684 # offset == 0: new file - add the version header |
33479
8b48dad66be4
obsstore: keep self._data updated with _addmarkers
Jun Wu <quark@fb.com>
parents:
33273
diff
changeset
|
685 data = b''.join(encodemarkers(new, offset == 0, self._version)) |
8b48dad66be4
obsstore: keep self._data updated with _addmarkers
Jun Wu <quark@fb.com>
parents:
33273
diff
changeset
|
686 f.write(data) |
17126
8fa8717b47b6
obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17125
diff
changeset
|
687 finally: |
8fa8717b47b6
obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17125
diff
changeset
|
688 # XXX: f.close() == filecache invalidation == obsstore rebuilt. |
8fa8717b47b6
obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17125
diff
changeset
|
689 # call 'filecacheentry.refresh()' here |
17124
f1b7683f3f95
obsolete: move obsolete markers read/write logic to obsstore object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17117
diff
changeset
|
690 f.close() |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
691 addedmarkers = transaction.changes.get(b'obsmarkers') |
33251
a5cb2e4460de
transaction: track new obsmarkers in the 'changes' mapping
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33244
diff
changeset
|
692 if addedmarkers is not None: |
a5cb2e4460de
transaction: track new obsmarkers in the 'changes' mapping
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33244
diff
changeset
|
693 addedmarkers.update(new) |
33479
8b48dad66be4
obsstore: keep self._data updated with _addmarkers
Jun Wu <quark@fb.com>
parents:
33273
diff
changeset
|
694 self._addmarkers(new, data) |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
695 # new marker *may* have changed several set. invalidate the cache. |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
696 self.caches.clear() |
22339
9680da73cfe0
obsmarker: record the number of new markers in the transaction
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22335
diff
changeset
|
697 # records the number of new markers for the transaction hooks |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
698 previous = int(transaction.hookargs.get(b'new_obsmarkers', b'0')) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
699 transaction.hookargs[b'new_obsmarkers'] = b'%d' % (previous + len(new)) |
17220
bdac214a4705
obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents:
17219
diff
changeset
|
700 return len(new) |
17126
8fa8717b47b6
obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17125
diff
changeset
|
701 |
17524 | 702 def mergemarkers(self, transaction, data): |
22325
3363f2d36015
obsstore: have the `mergemarkers` method return the number of new markers
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22309
diff
changeset
|
703 """merge a binary stream of markers inside the obsstore |
3363f2d36015
obsstore: have the `mergemarkers` method return the number of new markers
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22309
diff
changeset
|
704 |
3363f2d36015
obsstore: have the `mergemarkers` method return the number of new markers
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22309
diff
changeset
|
705 Returns the number of new markers added.""" |
22332
13e22358e9d2
obsolete: have _readmarkers return the format version
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22331
diff
changeset
|
706 version, markers = _readmarkers(data) |
22325
3363f2d36015
obsstore: have the `mergemarkers` method return the number of new markers
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22309
diff
changeset
|
707 return self.add(transaction, markers) |
17070
ad0d6c2b3279
obsolete: introduction of obsolete markers
Pierre-Yves.David@ens-lyon.org
parents:
diff
changeset
|
708 |
24046
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
709 @propertycache |
32690
3fad59faba8a
obsstore: separate marker parsing from obsstore reading
Jun Wu <quark@fb.com>
parents:
32689
diff
changeset
|
710 def _data(self): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
711 return self.svfs.tryread(b'obsstore') |
32690
3fad59faba8a
obsstore: separate marker parsing from obsstore reading
Jun Wu <quark@fb.com>
parents:
32689
diff
changeset
|
712 |
3fad59faba8a
obsstore: separate marker parsing from obsstore reading
Jun Wu <quark@fb.com>
parents:
32689
diff
changeset
|
713 @propertycache |
32691
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
714 def _version(self): |
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
715 if len(self._data) >= 1: |
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
716 return _readmarkerversion(self._data) |
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
717 else: |
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
718 return self._defaultformat |
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
719 |
5d8dd6c90af9
obsstore: move _version to a propertycache
Jun Wu <quark@fb.com>
parents:
32690
diff
changeset
|
720 @propertycache |
26309
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
721 def _all(self): |
32690
3fad59faba8a
obsstore: separate marker parsing from obsstore reading
Jun Wu <quark@fb.com>
parents:
32689
diff
changeset
|
722 data = self._data |
26309
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
723 if not data: |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
724 return [] |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
725 self._version, markers = _readmarkers(data) |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
726 markers = list(markers) |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
727 _checkinvalidmarkers(markers) |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
728 return markers |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
729 |
44918682093f
obsstore: delay loading markers from obsstore file
Yuya Nishihara <yuya@tcha.org>
parents:
26308
diff
changeset
|
730 @propertycache |
24046
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
731 def successors(self): |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
732 successors = {} |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
733 _addsuccessors(successors, self._all) |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
734 return successors |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
735 |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
736 @propertycache |
33733
d5acd967f95a
obsstore: rename precursors into predecessors
Boris Feld <boris.feld@octobus.net>
parents:
33732
diff
changeset
|
737 def predecessors(self): |
33732
32d4f815c4f4
obsolete: rename _addprecursors into _addpredecessors
Boris Feld <boris.feld@octobus.net>
parents:
33719
diff
changeset
|
738 predecessors = {} |
32d4f815c4f4
obsolete: rename _addprecursors into _addpredecessors
Boris Feld <boris.feld@octobus.net>
parents:
33719
diff
changeset
|
739 _addpredecessors(predecessors, self._all) |
32d4f815c4f4
obsolete: rename _addprecursors into _addpredecessors
Boris Feld <boris.feld@octobus.net>
parents:
33719
diff
changeset
|
740 return predecessors |
24046
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
741 |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
742 @propertycache |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
743 def children(self): |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
744 children = {} |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
745 _addchildren(children, self._all) |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
746 return children |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
747 |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
748 def _cached(self, attr): |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
749 return attr in self.__dict__ |
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
750 |
33479
8b48dad66be4
obsstore: keep self._data updated with _addmarkers
Jun Wu <quark@fb.com>
parents:
33273
diff
changeset
|
751 def _addmarkers(self, markers, rawdata): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
752 markers = list(markers) # to allow repeated iteration |
33479
8b48dad66be4
obsstore: keep self._data updated with _addmarkers
Jun Wu <quark@fb.com>
parents:
33273
diff
changeset
|
753 self._data = self._data + rawdata |
24044
e0e6dd806b23
obsolete: extract helpers from _load()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24019
diff
changeset
|
754 self._all.extend(markers) |
35837
d8f891ec5d7d
obsolete: use native string when peeking in __dict__
Augie Fackler <augie@google.com>
parents:
35574
diff
changeset
|
755 if self._cached(r'successors'): |
24046
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
756 _addsuccessors(self.successors, markers) |
35837
d8f891ec5d7d
obsolete: use native string when peeking in __dict__
Augie Fackler <augie@google.com>
parents:
35574
diff
changeset
|
757 if self._cached(r'predecessors'): |
33733
d5acd967f95a
obsstore: rename precursors into predecessors
Boris Feld <boris.feld@octobus.net>
parents:
33732
diff
changeset
|
758 _addpredecessors(self.predecessors, markers) |
35837
d8f891ec5d7d
obsolete: use native string when peeking in __dict__
Augie Fackler <augie@google.com>
parents:
35574
diff
changeset
|
759 if self._cached(r'children'): |
24046
6e1d9f9932a9
obsolete: populate successors, precursors, children lazily
Martin von Zweigbergk <martinvonz@google.com>
parents:
24045
diff
changeset
|
760 _addchildren(self.children, markers) |
24045
43061f96e40e
obsolete: pass only new markers to _checkinvalidmarkers()
Martin von Zweigbergk <martinvonz@google.com>
parents:
24044
diff
changeset
|
761 _checkinvalidmarkers(markers) |
23973
18d431147cc1
obsstore: make the invalid markers check wrap-able
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23805
diff
changeset
|
762 |
22271
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
763 def relevantmarkers(self, nodes): |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
764 """return a set of all obsolescence markers relevant to a set of nodes. |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
765 |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
766 "relevant" to a set of nodes mean: |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
767 |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
768 - marker that use this changeset as successor |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
769 - prune marker of direct children on this changeset |
33734
0c3112f17610
obsolete: rename precursor into predecessor in obsolete docstrings
Boris Feld <boris.feld@octobus.net>
parents:
33733
diff
changeset
|
770 - recursive application of the two rules on predecessors of these |
0c3112f17610
obsolete: rename precursor into predecessor in obsolete docstrings
Boris Feld <boris.feld@octobus.net>
parents:
33733
diff
changeset
|
771 markers |
22271
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
772 |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
773 It is a set so you cannot rely on order.""" |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
774 |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
775 pendingnodes = set(nodes) |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
776 seenmarkers = set() |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
777 seennodes = set(pendingnodes) |
33733
d5acd967f95a
obsstore: rename precursors into predecessors
Boris Feld <boris.feld@octobus.net>
parents:
33732
diff
changeset
|
778 precursorsmarkers = self.predecessors |
32488
176d1a0ce385
obsolete: fix relevant-obsmarkers computation on pruned changeset
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32411
diff
changeset
|
779 succsmarkers = self.successors |
22271
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
780 children = self.children |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
781 while pendingnodes: |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
782 direct = set() |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
783 for current in pendingnodes: |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
784 direct.update(precursorsmarkers.get(current, ())) |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
785 pruned = [m for m in children.get(current, ()) if not m[1]] |
8c69262df82d
obsstore: add relevantmarkers method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22270
diff
changeset
|
786 direct.update(pruned) |
32488
176d1a0ce385
obsolete: fix relevant-obsmarkers computation on pruned changeset
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32411
diff
changeset
|
787 pruned = [m for m in succsmarkers.get(current, ()) if not m[1]] |
176d1a0ce385
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|
788 direct.update(pruned) |
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|
789 direct -= seenmarkers |
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|
790 pendingnodes = {m[0] for m in direct} |
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791 seenmarkers |= direct |
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792 pendingnodes -= seennodes |
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|
793 seennodes |= pendingnodes |
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|
794 return seenmarkers |
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795 |
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796 |
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|
797 def makestore(ui, repo): |
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Gregory Szorc <gregory.szorc@gmail.com>
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798 """Create an obsstore instance from a repo.""" |
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|
799 # read default format for new obsstore. |
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|
800 # developer config: format.obsstore-version |
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|
801 defaultformat = ui.configint(b'format', b'obsstore-version') |
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|
802 # rely on obsstore class default when possible. |
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|
803 kwargs = {} |
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|
804 if defaultformat is not None: |
35365
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Pulkit Goyal <7895pulkit@gmail.com>
parents:
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diff
changeset
|
805 kwargs[r'defaultformat'] = defaultformat |
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|
806 readonly = not isenabled(repo, createmarkersopt) |
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|
807 store = obsstore(repo.svfs, readonly=readonly, **kwargs) |
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|
808 if store and readonly: |
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809 ui.warn( |
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810 _(b'obsolete feature not enabled but %i markers found!\n') |
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|
811 % len(list(store)) |
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|
812 ) |
32729
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|
813 return store |
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|
814 |
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815 |
22345
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diff
changeset
|
816 def commonversion(versions): |
cf7014c5f087
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diff
changeset
|
817 """Return the newest version listed in both versions and our local formats. |
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818 |
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|
819 Returns None if no common version exists. |
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|
820 """ |
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diff
changeset
|
821 versions.sort(reverse=True) |
cf7014c5f087
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parents:
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diff
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|
822 # search for highest version known on both side |
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|
823 for v in versions: |
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|
824 if v in formats: |
cf7014c5f087
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|
825 return v |
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|
826 return None |
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|
827 |
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828 |
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|
829 # arbitrary picked to fit into 8K limit from HTTP server |
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|
830 # you have to take in account: |
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|
831 # - the version header |
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|
832 # - the base85 encoding |
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|
833 _maxpayload = 5300 |
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834 |
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835 |
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|
836 def _pushkeyescape(markers): |
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|
837 """encode markers into a dict suitable for pushkey exchange |
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diff
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|
838 |
21024
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parents:
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diff
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|
839 - binary data is base85 encoded |
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diff
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|
840 - split in chunks smaller than 5300 bytes""" |
17295
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|
841 keys = {} |
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|
842 parts = [] |
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|
843 currentlen = _maxpayload * 2 # ensure we create a new part |
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changeset
|
844 for marker in markers: |
22329
ed37aa74d208
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|
845 nextdata = _fm0encodeonemarker(marker) |
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846 if len(nextdata) + currentlen > _maxpayload: |
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|
847 currentpart = [] |
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|
848 currentlen = 0 |
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|
849 parts.append(currentpart) |
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|
850 currentpart.append(nextdata) |
17304
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|
851 currentlen += len(nextdata) |
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|
852 for idx, part in enumerate(reversed(parts)): |
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|
853 data = b''.join([_pack(b'>B', _fm0version)] + part) |
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|
854 keys[b'dump%i' % idx] = util.b85encode(data) |
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|
855 return keys |
17073
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|
856 |
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857 |
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|
858 def listmarkers(repo): |
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|
859 """List markers over pushkey""" |
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|
860 if not repo.obsstore: |
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|
861 return {} |
25118
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changeset
|
862 return _pushkeyescape(sorted(repo.obsstore)) |
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863 |
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864 |
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|
865 def pushmarker(repo, key, old, new): |
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|
866 """Push markers over pushkey""" |
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867 if not key.startswith(b'dump'): |
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|
868 repo.ui.warn(_(b'unknown key: %r') % key) |
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|
869 return False |
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|
870 if old: |
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871 repo.ui.warn(_(b'unexpected old value for %r') % key) |
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|
872 return False |
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|
873 data = util.b85decode(new) |
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|
874 with repo.lock(), repo.transaction(b'pushkey: obsolete markers') as tr: |
35574
09285733ad71
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|
875 repo.obsstore.mergemarkers(tr, data) |
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|
876 repo.invalidatevolatilesets() |
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|
877 return True |
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|
878 |
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|
879 |
17828
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|
880 # mapping of 'set-name' -> <function to compute this set> |
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881 cachefuncs = {} |
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882 |
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883 |
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|
884 def cachefor(name): |
fb72eec7efd8
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885 """Decorator to register a function as computing the cache for a set""" |
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886 |
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diff
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|
887 def decorator(func): |
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|
888 if name in cachefuncs: |
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|
889 msg = b"duplicated registration for volatileset '%s' (existing: %r)" |
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|
890 raise error.ProgrammingError(msg % (name, cachefuncs[name])) |
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891 cachefuncs[name] = func |
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892 return func |
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893 |
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|
894 return decorator |
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895 |
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896 |
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|
897 def getrevs(repo, name): |
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|
898 """Return the set of revision that belong to the <name> set |
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obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
899 |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
900 Such access may compute the set and cache it for future use""" |
18001
e02feadd15ea
clfilter: unfilter computation of obsolescence related computation
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17831
diff
changeset
|
901 repo = repo.unfiltered() |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
902 if not repo.obsstore: |
22507
5c00c5298f98
obsolete: ensure that `getrevs` always return a set
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22394
diff
changeset
|
903 return frozenset() |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
904 if name not in repo.obsstore.caches: |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
905 repo.obsstore.caches[name] = cachefuncs[name](repo) |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
906 return repo.obsstore.caches[name] |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
907 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
908 |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
909 # To be simple we need to invalidate obsolescence cache when: |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
910 # |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
911 # - new changeset is added: |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
912 # - public phase is changed |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
913 # - obsolescence marker are added |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
914 # - strip is used a repo |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
915 def clearobscaches(repo): |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
916 """Remove all obsolescence related cache from a repo |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
917 |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
918 This remove all cache in obsstore is the obsstore already exist on the |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
919 repo. |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
920 |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
921 (We could be smarter here given the exact event that trigger the cache |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
922 clearing)""" |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
923 # only clear cache is there is obsstore data in this repo |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
924 if b'obsstore' in repo._filecache: |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
925 repo.obsstore.caches.clear() |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
926 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
927 |
33129
765c6ab07a88
obsolete: provide a small function to retrieve all mutable revisions
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32884
diff
changeset
|
928 def _mutablerevs(repo): |
765c6ab07a88
obsolete: provide a small function to retrieve all mutable revisions
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32884
diff
changeset
|
929 """the set of mutable revision in the repository""" |
38157
02f992ac26e9
phases: define an official tuple of mutable phases
Boris Feld <boris.feld@octobus.net>
parents:
37131
diff
changeset
|
930 return repo._phasecache.getrevset(repo, phases.mutablephases) |
33129
765c6ab07a88
obsolete: provide a small function to retrieve all mutable revisions
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32884
diff
changeset
|
931 |
43076
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
932 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
933 @cachefor(b'obsolete') |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
934 def _computeobsoleteset(repo): |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
935 """the set of obsolete revisions""" |
27784
432242f41d9f
obsolete: make _computeobsoleteset much faster
Laurent Charignon <lc2817@columbia.edu>
parents:
27332
diff
changeset
|
936 getnode = repo.changelog.node |
33129
765c6ab07a88
obsolete: provide a small function to retrieve all mutable revisions
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
32884
diff
changeset
|
937 notpublic = _mutablerevs(repo) |
32688
2c1400d43fd2
obsstore: minor optimization for the obsolete revset
Jun Wu <quark@fb.com>
parents:
32627
diff
changeset
|
938 isobs = repo.obsstore.successors.__contains__ |
2c1400d43fd2
obsstore: minor optimization for the obsolete revset
Jun Wu <quark@fb.com>
parents:
32627
diff
changeset
|
939 obs = set(r for r in notpublic if isobs(getnode(r))) |
18271
67872e939945
performance: speedup computation of obsolete revisions
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
18101
diff
changeset
|
940 return obs |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
941 |
43076
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
942 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
943 @cachefor(b'orphan') |
33777
d4b7496f7d0b
obsolete: rename unstable volatile set into orphan volatile set
Boris Feld <boris.feld@octobus.net>
parents:
33772
diff
changeset
|
944 def _computeorphanset(repo): |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
945 """the set of non obsolete revisions with obsolete parents""" |
33130
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
946 pfunc = repo.changelog.parentrevs |
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
947 mutable = _mutablerevs(repo) |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
948 obsolete = getrevs(repo, b'obsolete') |
33130
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
949 others = mutable - obsolete |
24928
876a2ebfbf4f
obsolete: speed up unstable computation
Laurent Charignon <lcharignon@fb.com>
parents:
24927
diff
changeset
|
950 unstable = set() |
33130
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
951 for r in sorted(others): |
24928
876a2ebfbf4f
obsolete: speed up unstable computation
Laurent Charignon <lcharignon@fb.com>
parents:
24927
diff
changeset
|
952 # A rev is unstable if one of its parent is obsolete or unstable |
876a2ebfbf4f
obsolete: speed up unstable computation
Laurent Charignon <lcharignon@fb.com>
parents:
24927
diff
changeset
|
953 # this works since we traverse following growing rev order |
33130
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
954 for p in pfunc(r): |
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
955 if p in obsolete or p in unstable: |
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
956 unstable.add(r) |
31ab1912678a
obsolete: skip 'changectx' usage in unstable computation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
33129
diff
changeset
|
957 break |
24928
876a2ebfbf4f
obsolete: speed up unstable computation
Laurent Charignon <lcharignon@fb.com>
parents:
24927
diff
changeset
|
958 return unstable |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
959 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
960 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
961 @cachefor(b'suspended') |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
962 def _computesuspendedset(repo): |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
963 """the set of obsolete parents with non obsolete descendants""" |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
964 suspended = repo.changelog.ancestors(getrevs(repo, b'orphan')) |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
965 return set(r for r in getrevs(repo, b'obsolete') if r in suspended) |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
966 |
43076
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
967 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
968 @cachefor(b'extinct') |
17469
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
969 def _computeextinctset(repo): |
fb72eec7efd8
obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17429
diff
changeset
|
970 """the set of obsolete parents without non obsolete descendants""" |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
971 return getrevs(repo, b'obsolete') - getrevs(repo, b'suspended') |
17474
f85816af6294
obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17469
diff
changeset
|
972 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
973 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
974 @cachefor(b'phasedivergent') |
33779
9fa874fb34e1
obsolete: rename bumped volatile set into phasedivergent volatile set
Boris Feld <boris.feld@octobus.net>
parents:
33778
diff
changeset
|
975 def _computephasedivergentset(repo): |
17828
9495be4126ef
obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17827
diff
changeset
|
976 """the set of revs trying to obsolete public revisions""" |
20207
cd62532c62a1
obsolete: order of magnitude speedup in _computebumpedset
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20206
diff
changeset
|
977 bumped = set() |
21024
7731a2281cf0
spelling: fixes from spell checker
Mads Kiilerich <madski@unity3d.com>
parents:
20599
diff
changeset
|
978 # util function (avoid attribute lookup in the loop) |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
979 phase = repo._phasecache.phase # would be faster to grab the full list |
20207
cd62532c62a1
obsolete: order of magnitude speedup in _computebumpedset
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20206
diff
changeset
|
980 public = phases.public |
cd62532c62a1
obsolete: order of magnitude speedup in _computebumpedset
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20206
diff
changeset
|
981 cl = repo.changelog |
cd62532c62a1
obsolete: order of magnitude speedup in _computebumpedset
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20206
diff
changeset
|
982 torev = cl.nodemap.get |
35136
82680919d75e
obsolete: drop usage of changectx in '_computephasedivergentset'
Boris Feld <boris.feld@octobus.net>
parents:
34902
diff
changeset
|
983 tonode = cl.node |
40462
6e2a24550b7e
obsolete: prefetch the repo.obsstore used in phasedivergence loop
Boris Feld <boris.feld@octobus.net>
parents:
40255
diff
changeset
|
984 obsstore = repo.obsstore |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
985 for rev in repo.revs(b'(not public()) and (not obsolete())'): |
20207
cd62532c62a1
obsolete: order of magnitude speedup in _computebumpedset
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20206
diff
changeset
|
986 # We only evaluate mutable, non-obsolete revision |
35136
82680919d75e
obsolete: drop usage of changectx in '_computephasedivergentset'
Boris Feld <boris.feld@octobus.net>
parents:
34902
diff
changeset
|
987 node = tonode(rev) |
33734
0c3112f17610
obsolete: rename precursor into predecessor in obsolete docstrings
Boris Feld <boris.feld@octobus.net>
parents:
33733
diff
changeset
|
988 # (future) A cache of predecessors may worth if split is very common |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
989 for pnode in obsutil.allpredecessors( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
990 obsstore, [node], ignoreflags=bumpedfix |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
991 ): |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
992 prev = torev(pnode) # unfiltered! but so is phasecache |
24927
cd0068232ec0
obsolete: speed up computation of bumped revset
Laurent Charignon <lcharignon@fb.com>
parents:
24393
diff
changeset
|
993 if (prev is not None) and (phase(repo, prev) <= public): |
33734
0c3112f17610
obsolete: rename precursor into predecessor in obsolete docstrings
Boris Feld <boris.feld@octobus.net>
parents:
33733
diff
changeset
|
994 # we have a public predecessor |
24927
cd0068232ec0
obsolete: speed up computation of bumped revset
Laurent Charignon <lcharignon@fb.com>
parents:
24393
diff
changeset
|
995 bumped.add(rev) |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
996 break # Next draft! |
20207
cd62532c62a1
obsolete: order of magnitude speedup in _computebumpedset
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
20206
diff
changeset
|
997 return bumped |
17828
9495be4126ef
obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17827
diff
changeset
|
998 |
43076
2372284d9457
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Augie Fackler <augie@google.com>
parents:
42217
diff
changeset
|
999 |
43077
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
1000 @cachefor(b'contentdivergent') |
33778
f3f06c260e9e
obsolete: rename divergent volatile set into contentdivergent volatile set
Boris Feld <boris.feld@octobus.net>
parents:
33777
diff
changeset
|
1001 def _computecontentdivergentset(repo): |
18070
af632936d3d9
obsolete: detect divergent changesets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
18069
diff
changeset
|
1002 """the set of rev that compete to be the final successors of some revision. |
af632936d3d9
obsolete: detect divergent changesets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
18069
diff
changeset
|
1003 """ |
af632936d3d9
obsolete: detect divergent changesets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
18069
diff
changeset
|
1004 divergent = set() |
af632936d3d9
obsolete: detect divergent changesets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
18069
diff
changeset
|
1005 obsstore = repo.obsstore |
af632936d3d9
obsolete: detect divergent changesets
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1006 newermap = {} |
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1007 tonode = repo.changelog.node |
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1008 for rev in repo.revs(b'(not public()) - obsolete()'): |
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1009 node = tonode(rev) |
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1010 mark = obsstore.predecessors.get(node, ()) |
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1011 toprocess = set(mark) |
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1012 seen = set() |
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1013 while toprocess: |
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1014 prec = toprocess.pop()[0] |
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1015 if prec in seen: |
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1016 continue # emergency cycle hanging prevention |
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1017 seen.add(prec) |
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1018 if prec not in newermap: |
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1019 obsutil.successorssets(repo, prec, cache=newermap) |
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1020 newer = [n for n in newermap[prec] if n] |
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1021 if len(newer) > 1: |
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1022 divergent.add(rev) |
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1023 break |
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1024 toprocess.update(obsstore.predecessors.get(prec, ())) |
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1025 return divergent |
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1026 |
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1027 |
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1028 def makefoldid(relation, user): |
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1029 |
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1030 folddigest = hashlib.sha1(user) |
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1031 for p in relation[0] + relation[1]: |
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1032 folddigest.update(b'%d' % p.rev()) |
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1033 folddigest.update(p.node()) |
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1034 # Since fold only has to compete against fold for the same successors, it |
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1035 # seems fine to use a small ID. Smaller ID save space. |
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1036 return node.hex(folddigest.digest())[:8] |
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1037 |
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1038 |
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1039 def createmarkers( |
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1040 repo, relations, flag=0, date=None, metadata=None, operation=None |
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1041 ): |
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1042 """Add obsolete markers between changesets in a repo |
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1043 |
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1044 <relations> must be an iterable of ((<old>,...), (<new>, ...)[,{metadata}]) |
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1045 tuple. `old` and `news` are changectx. metadata is an optional dictionary |
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1046 containing metadata for this marker only. It is merged with the global |
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|
1047 metadata specified through the `metadata` argument of this function. |
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1048 Any string values in metadata must be UTF-8 bytes. |
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1049 |
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1050 Trying to obsolete a public changeset will raise an exception. |
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1051 |
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1052 Current user and date are used except if specified otherwise in the |
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1053 metadata attribute. |
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1054 |
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1055 This function operates within a transaction of its own, but does |
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1056 not take any lock on the repo. |
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1057 """ |
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1058 # prepare metadata |
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1059 if metadata is None: |
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1060 metadata = {} |
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1061 if b'user' not in metadata: |
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1062 luser = ( |
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1063 repo.ui.config(b'devel', b'user.obsmarker') or repo.ui.username() |
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1064 ) |
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1065 metadata[b'user'] = encoding.fromlocal(luser) |
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|
1066 |
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1067 # Operation metadata handling |
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1068 useoperation = repo.ui.configbool( |
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1069 b'experimental', b'evolution.track-operation' |
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|
1070 ) |
32354
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|
1071 if useoperation and operation: |
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1072 metadata[b'operation'] = operation |
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|
1073 |
34413
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|
1074 # Effect flag metadata handling |
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1075 saveeffectflag = repo.ui.configbool( |
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1076 b'experimental', b'evolution.effect-flags' |
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1077 ) |
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|
1078 |
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|
1079 with repo.transaction(b'add-obsolescence-marker') as tr: |
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|
1080 markerargs = [] |
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1081 for rel in relations: |
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1082 predecessors = rel[0] |
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1083 if not isinstance(predecessors, tuple): |
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1084 # preserve compat with old API until all caller are migrated |
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|
1085 predecessors = (predecessors,) |
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|
1086 if len(predecessors) > 1 and len(rel[1]) != 1: |
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1087 msg = b'Fold markers can only have 1 successors, not %d' |
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|
1088 raise error.ProgrammingError(msg % len(rel[1])) |
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1089 foldid = None |
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1090 foldsize = len(predecessors) |
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1091 if 1 < foldsize: |
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1092 foldid = makefoldid(rel, metadata[b'user']) |
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1093 for foldidx, prec in enumerate(predecessors, 1): |
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1094 sucs = rel[1] |
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1095 localmetadata = metadata.copy() |
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1096 if len(rel) > 2: |
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1097 localmetadata.update(rel[2]) |
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1098 if foldid is not None: |
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1099 localmetadata[b'fold-id'] = foldid |
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1100 localmetadata[b'fold-idx'] = b'%d' % foldidx |
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1101 localmetadata[b'fold-size'] = b'%d' % foldsize |
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1102 |
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1103 if not prec.mutable(): |
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1104 raise error.Abort( |
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1105 _(b"cannot obsolete public changeset: %s") % prec, |
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1106 hint=b"see 'hg help phases' for details", |
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1107 ) |
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1108 nprec = prec.node() |
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1109 nsucs = tuple(s.node() for s in sucs) |
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1110 npare = None |
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|
1111 if not nsucs: |
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1112 npare = tuple(p.node() for p in prec.parents()) |
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1113 if nprec in nsucs: |
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1114 raise error.Abort( |
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1115 _(b"changeset %s cannot obsolete itself") % prec |
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1116 ) |
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1117 |
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1118 # Effect flag can be different by relation |
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1119 if saveeffectflag: |
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1120 # The effect flag is saved in a versioned field name for |
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1121 # future evolution |
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1122 effectflag = obsutil.geteffectflag(prec, sucs) |
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1123 localmetadata[obsutil.EFFECTFLAGFIELD] = b"%d" % effectflag |
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1124 |
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1125 # Creating the marker causes the hidden cache to become |
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1126 # invalid, which causes recomputation when we ask for |
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1127 # prec.parents() above. Resulting in n^2 behavior. So let's |
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1128 # prepare all of the args first, then create the markers. |
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1129 markerargs.append((nprec, nsucs, npare, localmetadata)) |
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1130 |
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1131 for args in markerargs: |
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1132 nprec, nsucs, npare, localmetadata = args |
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1133 repo.obsstore.create( |
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1134 tr, |
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1135 nprec, |
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1136 nsucs, |
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1137 flag, |
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1138 parents=npare, |
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1139 date=date, |
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1140 metadata=localmetadata, |
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1141 ui=repo.ui, |
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1142 ) |
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1143 repo.filteredrevcache.clear() |