Mercurial > hg
annotate mercurial/upgrade.py @ 42437:9609430d3625
rust-filepatterns: use bytes instead of String
In my initial patch, I introduced an unnecessary hard constraint on UTF-8
filenames and patterns which I forgot to remove. Although the performance
penalty for using String might be negligible, we don't want to break
compatibility with non-UTF-8 encodings for no reason.
Moreover, this change allows for a cleaner Rust core API.
This patch introduces a new utils module that is used with this fix.
Finally, PatternError was not put inside the Python module generated by
Rust, which would have raised a NameError.
Differential Revision: https://phab.mercurial-scm.org/D6485
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Thu, 06 Jun 2019 15:30:56 +0200 |
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1 # upgrade.py - functions for in place upgrade of Mercurial repository |
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2 # |
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3 # Copyright (c) 2016-present, Gregory Szorc |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import stat |
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11 |
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12 from .i18n import _ |
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13 from . import ( |
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14 changelog, |
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15 error, |
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16 filelog, |
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17 hg, |
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18 localrepo, |
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19 manifest, |
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20 pycompat, |
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21 revlog, |
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22 scmutil, |
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23 util, |
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24 vfs as vfsmod, |
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25 ) |
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26 |
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27 from .utils import ( |
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28 compression, |
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29 ) |
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30 |
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31 def requiredsourcerequirements(repo): |
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32 """Obtain requirements required to be present to upgrade a repo. |
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33 |
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34 An upgrade will not be allowed if the repository doesn't have the |
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35 requirements returned by this function. |
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36 """ |
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37 return { |
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38 # Introduced in Mercurial 0.9.2. |
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39 'revlogv1', |
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40 # Introduced in Mercurial 0.9.2. |
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41 'store', |
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42 } |
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43 |
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44 def blocksourcerequirements(repo): |
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45 """Obtain requirements that will prevent an upgrade from occurring. |
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46 |
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47 An upgrade cannot be performed if the source repository contains a |
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48 requirements in the returned set. |
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49 """ |
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50 return { |
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51 # The upgrade code does not yet support these experimental features. |
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52 # This is an artificial limitation. |
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53 'treemanifest', |
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54 # This was a precursor to generaldelta and was never enabled by default. |
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55 # It should (hopefully) not exist in the wild. |
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56 'parentdelta', |
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57 # Upgrade should operate on the actual store, not the shared link. |
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58 'shared', |
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59 } |
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60 |
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61 def supportremovedrequirements(repo): |
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62 """Obtain requirements that can be removed during an upgrade. |
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63 |
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64 If an upgrade were to create a repository that dropped a requirement, |
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65 the dropped requirement must appear in the returned set for the upgrade |
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66 to be allowed. |
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67 """ |
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68 supported = { |
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69 localrepo.SPARSEREVLOG_REQUIREMENT, |
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70 } |
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71 for name in compression.compengines: |
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72 engine = compression.compengines[name] |
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73 if engine.available() and engine.revlogheader(): |
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74 supported.add(b'exp-compression-%s' % name) |
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75 if engine.name() == 'zstd': |
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76 supported.add(b'revlog-compression-zstd') |
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77 return supported |
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78 |
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79 def supporteddestrequirements(repo): |
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80 """Obtain requirements that upgrade supports in the destination. |
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81 |
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82 If the result of the upgrade would create requirements not in this set, |
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83 the upgrade is disallowed. |
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84 |
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85 Extensions should monkeypatch this to add their custom requirements. |
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86 """ |
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87 supported = { |
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88 'dotencode', |
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89 'fncache', |
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90 'generaldelta', |
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91 'revlogv1', |
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92 'store', |
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93 localrepo.SPARSEREVLOG_REQUIREMENT, |
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94 } |
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95 for name in compression.compengines: |
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96 engine = compression.compengines[name] |
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97 if engine.available() and engine.revlogheader(): |
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98 supported.add(b'exp-compression-%s' % name) |
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99 if engine.name() == 'zstd': |
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100 supported.add(b'revlog-compression-zstd') |
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101 return supported |
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102 |
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103 def allowednewrequirements(repo): |
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104 """Obtain requirements that can be added to a repository during upgrade. |
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105 |
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106 This is used to disallow proposed requirements from being added when |
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107 they weren't present before. |
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108 |
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109 We use a list of allowed requirement additions instead of a list of known |
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110 bad additions because the whitelist approach is safer and will prevent |
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111 future, unknown requirements from accidentally being added. |
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112 """ |
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113 supported = { |
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114 'dotencode', |
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115 'fncache', |
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116 'generaldelta', |
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117 localrepo.SPARSEREVLOG_REQUIREMENT, |
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118 } |
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119 for name in compression.compengines: |
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120 engine = compression.compengines[name] |
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121 if engine.available() and engine.revlogheader(): |
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122 supported.add(b'exp-compression-%s' % name) |
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123 if engine.name() == 'zstd': |
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124 supported.add(b'revlog-compression-zstd') |
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125 return supported |
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126 |
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127 def preservedrequirements(repo): |
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128 return set() |
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129 |
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130 deficiency = 'deficiency' |
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131 optimisation = 'optimization' |
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132 |
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133 class improvement(object): |
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134 """Represents an improvement that can be made as part of an upgrade. |
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135 |
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136 The following attributes are defined on each instance: |
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137 |
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138 name |
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139 Machine-readable string uniquely identifying this improvement. It |
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140 will be mapped to an action later in the upgrade process. |
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141 |
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142 type |
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143 Either ``deficiency`` or ``optimisation``. A deficiency is an obvious |
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144 problem. An optimization is an action (sometimes optional) that |
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145 can be taken to further improve the state of the repository. |
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146 |
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147 description |
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148 Message intended for humans explaining the improvement in more detail, |
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149 including the implications of it. For ``deficiency`` types, should be |
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150 worded in the present tense. For ``optimisation`` types, should be |
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151 worded in the future tense. |
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152 |
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153 upgrademessage |
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154 Message intended for humans explaining what an upgrade addressing this |
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155 issue will do. Should be worded in the future tense. |
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156 """ |
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157 def __init__(self, name, type, description, upgrademessage): |
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158 self.name = name |
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159 self.type = type |
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160 self.description = description |
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161 self.upgrademessage = upgrademessage |
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162 |
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163 def __eq__(self, other): |
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164 if not isinstance(other, improvement): |
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165 # This is what python tell use to do |
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166 return NotImplemented |
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167 return self.name == other.name |
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168 |
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169 def __ne__(self, other): |
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170 return not (self == other) |
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171 |
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172 def __hash__(self): |
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173 return hash(self.name) |
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174 |
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175 allformatvariant = [] |
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176 |
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177 def registerformatvariant(cls): |
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178 allformatvariant.append(cls) |
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179 return cls |
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180 |
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181 class formatvariant(improvement): |
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182 """an improvement subclass dedicated to repository format""" |
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183 type = deficiency |
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184 ### The following attributes should be defined for each class: |
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185 |
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186 # machine-readable string uniquely identifying this improvement. it will be |
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187 # mapped to an action later in the upgrade process. |
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188 name = None |
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189 |
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190 # message intended for humans explaining the improvement in more detail, |
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191 # including the implications of it ``deficiency`` types, should be worded |
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192 # in the present tense. |
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193 description = None |
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194 |
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195 # message intended for humans explaining what an upgrade addressing this |
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196 # issue will do. should be worded in the future tense. |
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197 upgrademessage = None |
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198 |
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199 # value of current Mercurial default for new repository |
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200 default = None |
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201 |
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202 def __init__(self): |
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203 raise NotImplementedError() |
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204 |
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205 @staticmethod |
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206 def fromrepo(repo): |
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207 """current value of the variant in the repository""" |
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208 raise NotImplementedError() |
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209 |
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210 @staticmethod |
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211 def fromconfig(repo): |
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212 """current value of the variant in the configuration""" |
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213 raise NotImplementedError() |
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214 |
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215 class requirementformatvariant(formatvariant): |
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216 """formatvariant based on a 'requirement' name. |
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217 |
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218 Many format variant are controlled by a 'requirement'. We define a small |
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219 subclass to factor the code. |
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220 """ |
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221 |
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222 # the requirement that control this format variant |
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223 _requirement = None |
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224 |
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225 @staticmethod |
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226 def _newreporequirements(ui): |
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227 return localrepo.newreporequirements( |
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228 ui, localrepo.defaultcreateopts(ui)) |
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229 |
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230 @classmethod |
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231 def fromrepo(cls, repo): |
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232 assert cls._requirement is not None |
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233 return cls._requirement in repo.requirements |
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234 |
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235 @classmethod |
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236 def fromconfig(cls, repo): |
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237 assert cls._requirement is not None |
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238 return cls._requirement in cls._newreporequirements(repo.ui) |
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239 |
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240 @registerformatvariant |
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241 class fncache(requirementformatvariant): |
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242 name = 'fncache' |
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243 |
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244 _requirement = 'fncache' |
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245 |
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246 default = True |
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247 |
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248 description = _('long and reserved filenames may not work correctly; ' |
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249 'repository performance is sub-optimal') |
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250 |
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251 upgrademessage = _('repository will be more resilient to storing ' |
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252 'certain paths and performance of certain ' |
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253 'operations should be improved') |
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254 |
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255 @registerformatvariant |
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256 class dotencode(requirementformatvariant): |
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257 name = 'dotencode' |
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258 |
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259 _requirement = 'dotencode' |
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260 |
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261 default = True |
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262 |
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263 description = _('storage of filenames beginning with a period or ' |
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264 'space may not work correctly') |
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265 |
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266 upgrademessage = _('repository will be better able to store files ' |
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267 'beginning with a space or period') |
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268 |
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269 @registerformatvariant |
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270 class generaldelta(requirementformatvariant): |
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271 name = 'generaldelta' |
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272 |
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273 _requirement = 'generaldelta' |
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274 |
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275 default = True |
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276 |
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277 description = _('deltas within internal storage are unable to ' |
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278 'choose optimal revisions; repository is larger and ' |
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279 'slower than it could be; interaction with other ' |
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280 'repositories may require extra network and CPU ' |
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281 'resources, making "hg push" and "hg pull" slower') |
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282 |
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283 upgrademessage = _('repository storage will be able to create ' |
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284 'optimal deltas; new repository data will be ' |
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285 'smaller and read times should decrease; ' |
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286 'interacting with other repositories using this ' |
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287 'storage model should require less network and ' |
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288 'CPU resources, making "hg push" and "hg pull" ' |
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289 'faster') |
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290 |
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291 @registerformatvariant |
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292 class sparserevlog(requirementformatvariant): |
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293 name = 'sparserevlog' |
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294 |
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295 _requirement = localrepo.SPARSEREVLOG_REQUIREMENT |
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296 |
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297 default = True |
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298 |
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299 description = _('in order to limit disk reading and memory usage on older ' |
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300 'version, the span of a delta chain from its root to its ' |
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301 'end is limited, whatever the relevant data in this span. ' |
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302 'This can severly limit Mercurial ability to build good ' |
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303 'chain of delta resulting is much more storage space being ' |
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304 'taken and limit reusability of on disk delta during ' |
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305 'exchange.' |
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306 ) |
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307 |
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308 upgrademessage = _('Revlog supports delta chain with more unused data ' |
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309 'between payload. These gaps will be skipped at read ' |
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310 'time. This allows for better delta chains, making a ' |
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311 'better compression and faster exchange with server.') |
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312 |
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313 @registerformatvariant |
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314 class removecldeltachain(formatvariant): |
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315 name = 'plain-cl-delta' |
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316 |
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317 default = True |
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318 |
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319 description = _('changelog storage is using deltas instead of ' |
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320 'raw entries; changelog reading and any ' |
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321 'operation relying on changelog data are slower ' |
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322 'than they could be') |
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323 |
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324 upgrademessage = _('changelog storage will be reformated to ' |
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325 'store raw entries; changelog reading will be ' |
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326 'faster; changelog size may be reduced') |
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327 |
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328 @staticmethod |
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329 def fromrepo(repo): |
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330 # Mercurial 4.0 changed changelogs to not use delta chains. Search for |
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331 # changelogs with deltas. |
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332 cl = repo.changelog |
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333 chainbase = cl.chainbase |
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334 return all(rev == chainbase(rev) for rev in cl) |
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335 |
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336 @staticmethod |
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337 def fromconfig(repo): |
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338 return True |
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339 |
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340 @registerformatvariant |
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341 class compressionengine(formatvariant): |
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342 name = 'compression' |
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343 default = 'zlib' |
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344 |
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345 description = _('Compresion algorithm used to compress data. ' |
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346 'Some engine are faster than other') |
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347 |
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348 upgrademessage = _('revlog content will be recompressed with the new ' |
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349 'algorithm.') |
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350 |
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351 @classmethod |
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352 def fromrepo(cls, repo): |
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353 # we allow multiple compression engine requirement to co-exist because |
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354 # strickly speaking, revlog seems to support mixed compression style. |
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355 # |
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356 # The compression used for new entries will be "the last one" |
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357 compression = 'zlib' |
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358 for req in repo.requirements: |
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359 prefix = req.startswith |
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360 if prefix('revlog-compression-') or prefix('exp-compression-'): |
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361 compression = req.split('-', 2)[2] |
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362 return compression |
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363 |
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364 @classmethod |
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365 def fromconfig(cls, repo): |
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366 return repo.ui.config('format', 'revlog-compression') |
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367 |
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368 @registerformatvariant |
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369 class compressionlevel(formatvariant): |
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370 name = 'compression-level' |
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371 default = 'default' |
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372 |
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373 description = _('compression level') |
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374 |
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375 upgrademessage = _('revlog content will be recompressed') |
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376 |
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377 @classmethod |
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378 def fromrepo(cls, repo): |
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379 comp = compressionengine.fromrepo(repo) |
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380 level = None |
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381 if comp == 'zlib': |
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382 level = repo.ui.configint('storage', 'revlog.zlib.level') |
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383 elif comp == 'zstd': |
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384 level = repo.ui.configint('storage', 'revlog.zstd.level') |
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385 if level is None: |
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386 return 'default' |
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387 return bytes(level) |
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388 |
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389 @classmethod |
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390 def fromconfig(cls, repo): |
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391 comp = compressionengine.fromconfig(repo) |
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392 level = None |
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393 if comp == 'zlib': |
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394 level = repo.ui.configint('storage', 'revlog.zlib.level') |
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395 elif comp == 'zstd': |
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396 level = repo.ui.configint('storage', 'revlog.zstd.level') |
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397 if level is None: |
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398 return 'default' |
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399 return bytes(level) |
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400 |
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401 def finddeficiencies(repo): |
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402 """returns a list of deficiencies that the repo suffer from""" |
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403 deficiencies = [] |
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404 |
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405 # We could detect lack of revlogv1 and store here, but they were added |
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406 # in 0.9.2 and we don't support upgrading repos without these |
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407 # requirements, so let's not bother. |
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408 |
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409 for fv in allformatvariant: |
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410 if not fv.fromrepo(repo): |
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411 deficiencies.append(fv) |
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412 |
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413 return deficiencies |
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414 |
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415 # search without '-' to support older form on newer client. |
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416 # |
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417 # We don't enforce backward compatibility for debug command so this |
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418 # might eventually be dropped. However, having to use two different |
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419 # forms in script when comparing result is anoying enough to add |
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420 # backward compatibility for a while. |
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421 legacy_opts_map = { |
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422 'redeltaparent': 're-delta-parent', |
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423 'redeltamultibase': 're-delta-multibase', |
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424 'redeltaall': 're-delta-all', |
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425 'redeltafulladd': 're-delta-fulladd', |
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426 } |
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427 |
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428 def findoptimizations(repo): |
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429 """Determine optimisation that could be used during upgrade""" |
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430 # These are unconditionally added. There is logic later that figures out |
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431 # which ones to apply. |
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432 optimizations = [] |
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433 |
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434 optimizations.append(improvement( |
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435 name='re-delta-parent', |
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436 type=optimisation, |
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437 description=_('deltas within internal storage will be recalculated to ' |
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438 'choose an optimal base revision where this was not ' |
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439 'already done; the size of the repository may shrink and ' |
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440 'various operations may become faster; the first time ' |
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441 'this optimization is performed could slow down upgrade ' |
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442 'execution considerably; subsequent invocations should ' |
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443 'not run noticeably slower'), |
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444 upgrademessage=_('deltas within internal storage will choose a new ' |
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445 'base revision if needed'))) |
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446 |
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447 optimizations.append(improvement( |
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448 name='re-delta-multibase', |
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449 type=optimisation, |
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450 description=_('deltas within internal storage will be recalculated ' |
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451 'against multiple base revision and the smallest ' |
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452 'difference will be used; the size of the repository may ' |
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453 'shrink significantly when there are many merges; this ' |
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454 'optimization will slow down execution in proportion to ' |
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455 'the number of merges in the repository and the amount ' |
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456 'of files in the repository; this slow down should not ' |
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457 'be significant unless there are tens of thousands of ' |
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458 'files and thousands of merges'), |
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459 upgrademessage=_('deltas within internal storage will choose an ' |
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460 'optimal delta by computing deltas against multiple ' |
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461 'parents; may slow down execution time ' |
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462 'significantly'))) |
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463 |
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464 optimizations.append(improvement( |
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465 name='re-delta-all', |
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466 type=optimisation, |
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467 description=_('deltas within internal storage will always be ' |
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468 'recalculated without reusing prior deltas; this will ' |
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469 'likely make execution run several times slower; this ' |
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470 'optimization is typically not needed'), |
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471 upgrademessage=_('deltas within internal storage will be fully ' |
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472 'recomputed; this will likely drastically slow down ' |
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473 'execution time'))) |
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474 |
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475 optimizations.append(improvement( |
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476 name='re-delta-fulladd', |
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477 type=optimisation, |
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478 description=_('every revision will be re-added as if it was new ' |
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479 'content. It will go through the full storage ' |
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480 'mechanism giving extensions a chance to process it ' |
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481 '(eg. lfs). This is similar to "re-delta-all" but even ' |
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482 'slower since more logic is involved.'), |
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483 upgrademessage=_('each revision will be added as new content to the ' |
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484 'internal storage; this will likely drastically slow ' |
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485 'down execution time, but some extensions might need ' |
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486 'it'))) |
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487 |
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488 return optimizations |
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489 |
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490 def determineactions(repo, deficiencies, sourcereqs, destreqs): |
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491 """Determine upgrade actions that will be performed. |
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492 |
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493 Given a list of improvements as returned by ``finddeficiencies`` and |
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494 ``findoptimizations``, determine the list of upgrade actions that |
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495 will be performed. |
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496 |
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497 The role of this function is to filter improvements if needed, apply |
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498 recommended optimizations from the improvements list that make sense, |
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499 etc. |
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500 |
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501 Returns a list of action names. |
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502 """ |
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503 newactions = [] |
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504 |
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505 knownreqs = supporteddestrequirements(repo) |
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506 |
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507 for d in deficiencies: |
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508 name = d.name |
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509 |
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510 # If the action is a requirement that doesn't show up in the |
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511 # destination requirements, prune the action. |
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512 if name in knownreqs and name not in destreqs: |
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513 continue |
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514 |
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515 newactions.append(d) |
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516 |
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517 # FUTURE consider adding some optimizations here for certain transitions. |
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518 # e.g. adding generaldelta could schedule parent redeltas. |
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519 |
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520 return newactions |
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|
521 |
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522 def _revlogfrompath(repo, path): |
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523 """Obtain a revlog from a repo path. |
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524 |
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525 An instance of the appropriate class is returned. |
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526 """ |
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527 if path == '00changelog.i': |
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528 return changelog.changelog(repo.svfs) |
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529 elif path.endswith('00manifest.i'): |
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530 mandir = path[:-len('00manifest.i')] |
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531 return manifest.manifestrevlog(repo.svfs, tree=mandir) |
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532 else: |
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533 #reverse of "/".join(("data", path + ".i")) |
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534 return filelog.filelog(repo.svfs, path[5:-2]) |
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535 |
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536 def _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, forcedeltabothparents): |
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537 """Copy revlogs between 2 repos.""" |
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538 revcount = 0 |
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539 srcsize = 0 |
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540 srcrawsize = 0 |
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541 dstsize = 0 |
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542 fcount = 0 |
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543 frevcount = 0 |
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544 fsrcsize = 0 |
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545 frawsize = 0 |
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546 fdstsize = 0 |
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547 mcount = 0 |
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548 mrevcount = 0 |
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|
549 msrcsize = 0 |
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|
550 mrawsize = 0 |
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|
551 mdstsize = 0 |
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parents:
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552 crevcount = 0 |
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|
553 csrcsize = 0 |
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|
554 crawsize = 0 |
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|
555 cdstsize = 0 |
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|
556 |
38aa1ca97b6a
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diff
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|
557 # Perform a pass to collect metadata. This validates we can open all |
38aa1ca97b6a
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558 # source files and allows a unified progress bar to be displayed. |
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|
559 for unencoded, encoded, size in srcrepo.store.walk(): |
38aa1ca97b6a
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|
560 if unencoded.endswith('.d'): |
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diff
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|
561 continue |
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|
562 |
38aa1ca97b6a
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diff
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|
563 rl = _revlogfrompath(srcrepo, unencoded) |
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|
564 |
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diff
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|
565 info = rl.storageinfo(exclusivefiles=True, revisionscount=True, |
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diff
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|
566 trackedsize=True, storedsize=True) |
39857
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upgrade: report size of backing files, not internal storage size
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|
567 |
39870
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|
568 revcount += info['revisionscount'] or 0 |
b399ff55ee6d
upgrade: use storageinfo() for obtaining storage metadata
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diff
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|
569 datasize = info['storedsize'] or 0 |
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|
570 rawsize = info['trackedsize'] or 0 |
30779
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parents:
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diff
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|
571 |
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diff
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|
572 srcsize += datasize |
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parents:
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|
573 srcrawsize += rawsize |
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parents:
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diff
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|
574 |
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parents:
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diff
changeset
|
575 # This is for the separate progress bars. |
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576 if isinstance(rl, changelog.changelog): |
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|
577 crevcount += len(rl) |
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578 csrcsize += datasize |
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|
579 crawsize += rawsize |
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580 elif isinstance(rl, manifest.manifestrevlog): |
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|
581 mcount += 1 |
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|
582 mrevcount += len(rl) |
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parents:
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583 msrcsize += datasize |
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parents:
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|
584 mrawsize += rawsize |
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585 elif isinstance(rl, filelog.filelog): |
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586 fcount += 1 |
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587 frevcount += len(rl) |
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588 fsrcsize += datasize |
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parents:
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589 frawsize += rawsize |
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parents:
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diff
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590 else: |
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parents:
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|
591 error.ProgrammingError('unknown revlog type') |
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592 |
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593 if not revcount: |
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parents:
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|
594 return |
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|
595 |
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|
596 ui.write(_('migrating %d total revisions (%d in filelogs, %d in manifests, ' |
38aa1ca97b6a
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|
597 '%d in changelog)\n') % |
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|
598 (revcount, frevcount, mrevcount, crevcount)) |
38aa1ca97b6a
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|
599 ui.write(_('migrating %s in store; %s tracked data\n') % ( |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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|
600 (util.bytecount(srcsize), util.bytecount(srcrawsize)))) |
38aa1ca97b6a
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parents:
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diff
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|
601 |
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parents:
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changeset
|
602 # Used to keep track of progress. |
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diff
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|
603 progress = None |
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604 def oncopiedrevision(rl, rev, node): |
38399
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|
605 progress.increment() |
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|
606 |
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repair: migrate revlogs during upgrade
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|
607 # Do the actual copying. |
38aa1ca97b6a
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|
608 # FUTURE this operation can be farmed off to worker processes. |
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|
609 seen = set() |
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|
610 for unencoded, encoded, size in srcrepo.store.walk(): |
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|
611 if unencoded.endswith('.d'): |
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repair: migrate revlogs during upgrade
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|
612 continue |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
613 |
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|
614 oldrl = _revlogfrompath(srcrepo, unencoded) |
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|
615 newrl = _revlogfrompath(dstrepo, unencoded) |
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diff
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|
616 |
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parents:
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diff
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|
617 if isinstance(oldrl, changelog.changelog) and 'c' not in seen: |
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repair: migrate revlogs during upgrade
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|
618 ui.write(_('finished migrating %d manifest revisions across %d ' |
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repair: migrate revlogs during upgrade
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parents:
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diff
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|
619 'manifests; change in size: %s\n') % |
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repair: migrate revlogs during upgrade
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parents:
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diff
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|
620 (mrevcount, mcount, util.bytecount(mdstsize - msrcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
621 |
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|
622 ui.write(_('migrating changelog containing %d revisions ' |
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|
623 '(%s in store; %s tracked data)\n') % |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
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|
624 (crevcount, util.bytecount(csrcsize), |
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repair: migrate revlogs during upgrade
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diff
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|
625 util.bytecount(crawsize))) |
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|
626 seen.add('c') |
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|
627 progress = srcrepo.ui.makeprogress(_('changelog revisions'), |
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diff
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|
628 total=crevcount) |
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diff
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|
629 elif isinstance(oldrl, manifest.manifestrevlog) and 'm' not in seen: |
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|
630 ui.write(_('finished migrating %d filelog revisions across %d ' |
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diff
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|
631 'filelogs; change in size: %s\n') % |
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parents:
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diff
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|
632 (frevcount, fcount, util.bytecount(fdstsize - fsrcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
633 |
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|
634 ui.write(_('migrating %d manifests containing %d revisions ' |
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diff
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|
635 '(%s in store; %s tracked data)\n') % |
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repair: migrate revlogs during upgrade
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parents:
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diff
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|
636 (mcount, mrevcount, util.bytecount(msrcsize), |
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repair: migrate revlogs during upgrade
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parents:
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diff
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|
637 util.bytecount(mrawsize))) |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
638 seen.add('m') |
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upgrade: close progress after each revlog
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diff
changeset
|
639 if progress: |
38399
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diff
changeset
|
640 progress.complete() |
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diff
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|
641 progress = srcrepo.ui.makeprogress(_('manifest revisions'), |
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diff
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|
642 total=mrevcount) |
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diff
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|
643 elif 'f' not in seen: |
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parents:
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diff
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|
644 ui.write(_('migrating %d filelogs containing %d revisions ' |
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parents:
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diff
changeset
|
645 '(%s in store; %s tracked data)\n') % |
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diff
changeset
|
646 (fcount, frevcount, util.bytecount(fsrcsize), |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
647 util.bytecount(frawsize))) |
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parents:
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diff
changeset
|
648 seen.add('f') |
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diff
changeset
|
649 if progress: |
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diff
changeset
|
650 progress.complete() |
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diff
changeset
|
651 progress = srcrepo.ui.makeprogress(_('file revisions'), |
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diff
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|
652 total=frevcount) |
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diff
changeset
|
653 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
654 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
655 ui.note(_('cloning %d revisions from %s\n') % (len(oldrl), unencoded)) |
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parents:
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diff
changeset
|
656 oldrl.clone(tr, newrl, addrevisioncb=oncopiedrevision, |
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repair: migrate revlogs during upgrade
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diff
changeset
|
657 deltareuse=deltareuse, |
40837
64051af15596
upgrade: clarify "aggressivemergedelta" handling
Boris Feld <boris.feld@octobus.net>
parents:
39996
diff
changeset
|
658 forcedeltabothparents=forcedeltabothparents) |
30779
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diff
changeset
|
659 |
39870
b399ff55ee6d
upgrade: use storageinfo() for obtaining storage metadata
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
660 info = newrl.storageinfo(storedsize=True) |
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upgrade: use storageinfo() for obtaining storage metadata
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diff
changeset
|
661 datasize = info['storedsize'] or 0 |
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diff
changeset
|
662 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
663 dstsize += datasize |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
664 |
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parents:
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diff
changeset
|
665 if isinstance(newrl, changelog.changelog): |
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diff
changeset
|
666 cdstsize += datasize |
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parents:
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diff
changeset
|
667 elif isinstance(newrl, manifest.manifestrevlog): |
38aa1ca97b6a
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parents:
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diff
changeset
|
668 mdstsize += datasize |
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parents:
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diff
changeset
|
669 else: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
670 fdstsize += datasize |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
671 |
38399
185588cb0c4b
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parents:
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diff
changeset
|
672 progress.complete() |
30779
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parents:
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diff
changeset
|
673 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
674 ui.write(_('finished migrating %d changelog revisions; change in size: ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
675 '%s\n') % (crevcount, util.bytecount(cdstsize - csrcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
676 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
677 ui.write(_('finished migrating %d total revisions; total change in store ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
678 'size: %s\n') % (revcount, util.bytecount(dstsize - srcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
679 |
31873
d6c2005484b6
upgrade: drop the prefix to the '_filterstorefile' function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31872
diff
changeset
|
680 def _filterstorefile(srcrepo, dstrepo, requirements, path, mode, st): |
30780
2603d04889e1
repair: copy non-revlog store files during upgrade
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parents:
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changeset
|
681 """Determine whether to copy a store file during upgrade. |
2603d04889e1
repair: copy non-revlog store files during upgrade
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parents:
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diff
changeset
|
682 |
2603d04889e1
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parents:
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diff
changeset
|
683 This function is called when migrating store files from ``srcrepo`` to |
2603d04889e1
repair: copy non-revlog store files during upgrade
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parents:
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changeset
|
684 ``dstrepo`` as part of upgrading a repository. |
2603d04889e1
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parents:
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diff
changeset
|
685 |
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
686 Args: |
2603d04889e1
repair: copy non-revlog store files during upgrade
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parents:
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diff
changeset
|
687 srcrepo: repo we are copying from |
2603d04889e1
repair: copy non-revlog store files during upgrade
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diff
changeset
|
688 dstrepo: repo we are copying to |
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689 requirements: set of requirements for ``dstrepo`` |
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690 path: store file being examined |
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691 mode: the ``ST_MODE`` file type of ``path`` |
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692 st: ``stat`` data structure for ``path`` |
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693 |
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694 Function should return ``True`` if the file is to be copied. |
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695 """ |
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696 # Skip revlogs. |
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697 if path.endswith(('.i', '.d')): |
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698 return False |
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699 # Skip transaction related files. |
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700 if path.startswith('undo'): |
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701 return False |
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702 # Only copy regular files. |
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703 if mode != stat.S_IFREG: |
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704 return False |
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705 # Skip other skipped files. |
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706 if path in ('lock', 'fncache'): |
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707 return False |
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changeset
|
708 |
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709 return True |
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|
710 |
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711 def _finishdatamigration(ui, srcrepo, dstrepo, requirements): |
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712 """Hook point for extensions to perform additional actions during upgrade. |
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|
713 |
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714 This function is called after revlogs and store files have been copied but |
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715 before the new store is swapped into the original location. |
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716 """ |
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|
717 |
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718 def _upgraderepo(ui, srcrepo, dstrepo, requirements, actions): |
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719 """Do the low-level work of upgrading a repository. |
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720 |
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721 The upgrade is effectively performed as a copy between a source |
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722 repository and a temporary destination repository. |
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723 |
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724 The source repository is unmodified for as long as possible so the |
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|
725 upgrade can abort at any time without causing loss of service for |
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726 readers and without corrupting the source repository. |
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|
727 """ |
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|
728 assert srcrepo.currentwlock() |
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729 assert dstrepo.currentwlock() |
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|
730 |
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|
731 ui.write(_('(it is safe to interrupt this process any time before ' |
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732 'data migration completes)\n')) |
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|
733 |
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|
734 if 're-delta-all' in actions: |
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|
735 deltareuse = revlog.revlog.DELTAREUSENEVER |
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|
736 elif 're-delta-parent' in actions: |
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737 deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
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|
738 elif 're-delta-multibase' in actions: |
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|
739 deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
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|
740 elif 're-delta-fulladd' in actions: |
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6226668a7169
upgrade: add a 'redeltafullall' mode
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|
741 deltareuse = revlog.revlog.DELTAREUSEFULLADD |
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742 else: |
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743 deltareuse = revlog.revlog.DELTAREUSEALWAYS |
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|
744 |
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|
745 with dstrepo.transaction('upgrade') as tr: |
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|
746 _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, |
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|
747 're-delta-multibase' in actions) |
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|
748 |
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|
749 # Now copy other files in the store directory. |
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diff
changeset
|
750 # The sorted() makes execution deterministic. |
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repair: iterate store files deterministically
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changeset
|
751 for p, kind, st in sorted(srcrepo.store.vfs.readdir('', stat=True)): |
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parents:
31872
diff
changeset
|
752 if not _filterstorefile(srcrepo, dstrepo, requirements, |
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|
753 p, kind, st): |
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|
754 continue |
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|
755 |
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|
756 srcrepo.ui.write(_('copying %s\n') % p) |
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diff
changeset
|
757 src = srcrepo.store.rawvfs.join(p) |
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changeset
|
758 dst = dstrepo.store.rawvfs.join(p) |
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759 util.copyfile(src, dst, copystat=True) |
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changeset
|
760 |
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changeset
|
761 _finishdatamigration(ui, srcrepo, dstrepo, requirements) |
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762 |
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|
763 ui.write(_('data fully migrated to temporary repository\n')) |
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|
764 |
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2ce60954b1b7
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parents:
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diff
changeset
|
765 backuppath = pycompat.mkdtemp(prefix='upgradebackup.', dir=srcrepo.path) |
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|
766 backupvfs = vfsmod.vfs(backuppath) |
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|
767 |
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|
768 # Make a backup of requires file first, as it is the first to be modified. |
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diff
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|
769 util.copyfile(srcrepo.vfs.join('requires'), backupvfs.join('requires')) |
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|
770 |
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|
771 # We install an arbitrary requirement that clients must not support |
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diff
changeset
|
772 # as a mechanism to lock out new clients during the data swap. This is |
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diff
changeset
|
773 # better than allowing a client to continue while the repository is in |
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diff
changeset
|
774 # an inconsistent state. |
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changeset
|
775 ui.write(_('marking source repository as being upgraded; clients will be ' |
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diff
changeset
|
776 'unable to read from repository\n')) |
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diff
changeset
|
777 scmutil.writerequires(srcrepo.vfs, |
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diff
changeset
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778 srcrepo.requirements | {'upgradeinprogress'}) |
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|
779 |
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|
780 ui.write(_('starting in-place swap of repository data\n')) |
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781 ui.write(_('replaced files will be backed up at %s\n') % |
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|
782 backuppath) |
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|
783 |
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|
784 # Now swap in the new store directory. Doing it as a rename should make |
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diff
changeset
|
785 # the operation nearly instantaneous and atomic (at least in well-behaved |
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|
786 # environments). |
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changeset
|
787 ui.write(_('replacing store...\n')) |
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mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
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diff
changeset
|
788 tstart = util.timer() |
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changeset
|
789 util.rename(srcrepo.spath, backupvfs.join('store')) |
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diff
changeset
|
790 util.rename(dstrepo.spath, srcrepo.spath) |
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|
791 elapsed = util.timer() - tstart |
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|
792 ui.write(_('store replacement complete; repository was inconsistent for ' |
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|
793 '%0.1fs\n') % elapsed) |
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|
794 |
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diff
changeset
|
795 # We first write the requirements file. Any new requirements will lock |
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796 # out legacy clients. |
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changeset
|
797 ui.write(_('finalizing requirements file and making repository readable ' |
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changeset
|
798 'again\n')) |
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changeset
|
799 scmutil.writerequires(srcrepo.vfs, requirements) |
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diff
changeset
|
800 |
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801 # The lock file from the old store won't be removed because nothing has a |
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802 # reference to its new location. So clean it up manually. Alternatively, we |
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803 # could update srcrepo.svfs and other variables to point to the new |
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804 # location. This is simpler. |
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805 backupvfs.unlink('store/lock') |
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|
806 |
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|
807 return backuppath |
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|
808 |
41089
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debugupgraderepo: add a --no-backup mode
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diff
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|
809 def upgraderepo(ui, repo, run=False, optimize=None, backup=True): |
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810 """Upgrade a repository in place.""" |
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|
811 if optimize is None: |
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upgrade: add '-' in optimization name
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812 optimize = [] |
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813 optimize = set(legacy_opts_map.get(o, o) for o in optimize) |
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814 repo = repo.unfiltered() |
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815 |
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816 # Ensure the repository can be upgraded. |
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|
817 missingreqs = requiredsourcerequirements(repo) - repo.requirements |
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818 if missingreqs: |
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819 raise error.Abort(_('cannot upgrade repository; requirement ' |
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820 'missing: %s') % _(', ').join(sorted(missingreqs))) |
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diff
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|
821 |
31866
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parents:
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diff
changeset
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822 blockedreqs = blocksourcerequirements(repo) & repo.requirements |
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823 if blockedreqs: |
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824 raise error.Abort(_('cannot upgrade repository; unsupported source ' |
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825 'requirement: %s') % |
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826 _(', ').join(sorted(blockedreqs))) |
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diff
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827 |
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828 # FUTURE there is potentially a need to control the wanted requirements via |
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829 # command arguments or via an extension hook point. |
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changeset
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830 newreqs = localrepo.newreporequirements( |
dbcb466d0065
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831 repo.ui, localrepo.defaultcreateopts(repo.ui)) |
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upgraderepo: allow extension to register preserved requirements
Boris Feld <boris.feld@octobus.net>
parents:
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diff
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832 newreqs.update(preservedrequirements(repo)) |
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|
833 |
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|
834 noremovereqs = (repo.requirements - newreqs - |
31867
cc60b6c36637
upgrade: drop the prefix to the 'supportremovedrequirements' function
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parents:
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diff
changeset
|
835 supportremovedrequirements(repo)) |
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836 if noremovereqs: |
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837 raise error.Abort(_('cannot upgrade repository; requirement would be ' |
513d68a90398
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838 'removed: %s') % _(', ').join(sorted(noremovereqs))) |
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839 |
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|
840 noaddreqs = (newreqs - repo.requirements - |
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841 allowednewrequirements(repo)) |
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842 if noaddreqs: |
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843 raise error.Abort(_('cannot upgrade repository; do not support adding ' |
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844 'requirement: %s') % |
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845 _(', ').join(sorted(noaddreqs))) |
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diff
changeset
|
846 |
31870
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diff
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|
847 unsupportedreqs = newreqs - supporteddestrequirements(repo) |
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848 if unsupportedreqs: |
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|
849 raise error.Abort(_('cannot upgrade repository; do not support ' |
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|
850 'destination requirement: %s') % |
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851 _(', ').join(sorted(unsupportedreqs))) |
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852 |
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853 # Find and validate all improvements that can be made. |
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diff
changeset
|
854 alloptimizations = findoptimizations(repo) |
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|
855 |
31899
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diff
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|
856 # Apply and Validate arguments. |
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|
857 optimizations = [] |
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diff
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|
858 for o in alloptimizations: |
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changeset
|
859 if o.name in optimize: |
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|
860 optimizations.append(o) |
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changeset
|
861 optimize.discard(o.name) |
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|
862 |
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|
863 if optimize: # anything left is unknown |
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|
864 raise error.Abort(_('unknown optimization action requested: %s') % |
31899
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|
865 ', '.join(sorted(optimize)), |
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866 hint=_('run without arguments to see valid ' |
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|
867 'optimizations')) |
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changeset
|
868 |
31897
d0067250542d
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diff
changeset
|
869 deficiencies = finddeficiencies(repo) |
31899
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|
870 actions = determineactions(repo, deficiencies, repo.requirements, newreqs) |
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|
871 actions.extend(o for o in sorted(optimizations) |
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|
872 # determineactions could have added optimisation |
31903
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|
873 if o not in actions) |
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|
874 |
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|
875 def printrequirements(): |
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|
876 ui.write(_('requirements\n')) |
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|
877 ui.write(_(' preserved: %s\n') % |
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878 _(', ').join(sorted(newreqs & repo.requirements))) |
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|
879 |
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|
880 if repo.requirements - newreqs: |
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|
881 ui.write(_(' removed: %s\n') % |
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|
882 _(', ').join(sorted(repo.requirements - newreqs))) |
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|
883 |
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|
884 if newreqs - repo.requirements: |
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|
885 ui.write(_(' added: %s\n') % |
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|
886 _(', ').join(sorted(newreqs - repo.requirements))) |
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changeset
|
887 |
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|
888 ui.write('\n') |
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|
889 |
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|
890 def printupgradeactions(): |
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891 for a in actions: |
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|
892 ui.write('%s\n %s\n\n' % (a.name, a.upgrademessage)) |
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|
893 |
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|
894 if not run: |
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|
895 fromconfig = [] |
31904
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|
896 onlydefault = [] |
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|
897 |
31901
9bdedb050d8d
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|
898 for d in deficiencies: |
32031
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changeset
|
899 if d.fromconfig(repo): |
31901
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|
900 fromconfig.append(d) |
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901 elif d.default: |
31904
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|
902 onlydefault.append(d) |
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|
903 |
31904
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|
904 if fromconfig or onlydefault: |
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905 |
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|
906 if fromconfig: |
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907 ui.write(_('repository lacks features recommended by ' |
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|
908 'current config options:\n\n')) |
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909 for i in fromconfig: |
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910 ui.write('%s\n %s\n\n' % (i.name, i.description)) |
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|
911 |
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|
912 if onlydefault: |
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|
913 ui.write(_('repository lacks features used by the default ' |
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|
914 'config options:\n\n')) |
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915 for i in onlydefault: |
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916 ui.write('%s\n %s\n\n' % (i.name, i.description)) |
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917 |
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918 ui.write('\n') |
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919 else: |
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920 ui.write(_('(no feature deficiencies found in existing ' |
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921 'repository)\n')) |
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922 |
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923 ui.write(_('performing an upgrade with "--run" will make the following ' |
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924 'changes:\n\n')) |
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925 |
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926 printrequirements() |
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927 printupgradeactions() |
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928 |
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929 unusedoptimize = [i for i in alloptimizations if i not in actions] |
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930 |
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931 if unusedoptimize: |
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932 ui.write(_('additional optimizations are available by specifying ' |
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933 '"--optimize <name>":\n\n')) |
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934 for i in unusedoptimize: |
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935 ui.write(_('%s\n %s\n\n') % (i.name, i.description)) |
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936 return |
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937 |
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938 # Else we're in the run=true case. |
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939 ui.write(_('upgrade will perform the following actions:\n\n')) |
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940 printrequirements() |
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941 printupgradeactions() |
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942 |
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943 upgradeactions = [a.name for a in actions] |
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944 |
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945 ui.write(_('beginning upgrade...\n')) |
33438 | 946 with repo.wlock(), repo.lock(): |
947 ui.write(_('repository locked and read-only\n')) | |
948 # Our strategy for upgrading the repository is to create a new, | |
949 # temporary repository, write data to it, then do a swap of the | |
950 # data. There are less heavyweight ways to do this, but it is easier | |
951 # to create a new repo object than to instantiate all the components | |
952 # (like the store) separately. | |
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953 tmppath = pycompat.mkdtemp(prefix='upgrade.', dir=repo.path) |
33438 | 954 backuppath = None |
955 try: | |
956 ui.write(_('creating temporary repository to stage migrated ' | |
957 'data: %s\n') % tmppath) | |
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958 |
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959 # clone ui without using ui.copy because repo.ui is protected |
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960 repoui = repo.ui.__class__(repo.ui) |
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961 dstrepo = hg.repository(repoui, path=tmppath, create=True) |
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962 |
33438 | 963 with dstrepo.wlock(), dstrepo.lock(): |
964 backuppath = _upgraderepo(ui, repo, dstrepo, newreqs, | |
965 upgradeactions) | |
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966 if not (backup or backuppath is None): |
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967 ui.write(_('removing old repository content%s\n') % backuppath) |
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968 repo.vfs.rmtree(backuppath, forcibly=True) |
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969 backuppath = None |
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970 |
33438 | 971 finally: |
972 ui.write(_('removing temporary repository %s\n') % tmppath) | |
973 repo.vfs.rmtree(tmppath, forcibly=True) | |
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974 |
33438 | 975 if backuppath: |
976 ui.warn(_('copy of old repository backed up at %s\n') % | |
977 backuppath) | |
978 ui.warn(_('the old repository will not be deleted; remove ' | |
979 'it to free up disk space once the upgraded ' | |
980 'repository is verified\n')) |