Mercurial > hg
annotate mercurial/upgrade.py @ 33039:b82615afde65
bundle: add a applybundle1() method
This is one step towards removing a bunch of "if isinstance(gen,
unbundle20)" by treating bundle1 and bundle2 more similarly.
The name may sounds ironic for a method in the bundle2 module, but I
didn't think it was worth it yet to create a new 'bundle' module that
depends on the 'bundle2' module. Besides, we'll inline the method
again later.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Fri, 16 Jun 2017 10:25:11 -0700 |
parents | bd872f64a8ba |
children | 8056481caa81 |
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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 import tempfile |
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12 |
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13 from .i18n import _ |
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14 from . import ( |
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15 changelog, |
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16 error, |
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17 localrepo, |
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18 manifest, |
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19 revlog, |
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20 scmutil, |
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21 util, |
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22 vfs as vfsmod, |
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23 ) |
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24 |
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25 def requiredsourcerequirements(repo): |
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26 """Obtain requirements required to be present to upgrade a repo. |
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27 |
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28 An upgrade will not be allowed if the repository doesn't have the |
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29 requirements returned by this function. |
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30 """ |
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31 return { |
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32 # Introduced in Mercurial 0.9.2. |
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33 'revlogv1', |
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34 # Introduced in Mercurial 0.9.2. |
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35 'store', |
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36 } |
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37 |
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38 def blocksourcerequirements(repo): |
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39 """Obtain requirements that will prevent an upgrade from occurring. |
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40 |
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41 An upgrade cannot be performed if the source repository contains a |
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42 requirements in the returned set. |
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43 """ |
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44 return { |
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45 # The upgrade code does not yet support these experimental features. |
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46 # This is an artificial limitation. |
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47 'manifestv2', |
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48 'treemanifest', |
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49 # This was a precursor to generaldelta and was never enabled by default. |
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50 # It should (hopefully) not exist in the wild. |
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51 'parentdelta', |
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52 # Upgrade should operate on the actual store, not the shared link. |
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53 'shared', |
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54 } |
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55 |
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56 def supportremovedrequirements(repo): |
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57 """Obtain requirements that can be removed during an upgrade. |
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58 |
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59 If an upgrade were to create a repository that dropped a requirement, |
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60 the dropped requirement must appear in the returned set for the upgrade |
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61 to be allowed. |
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62 """ |
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63 return set() |
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64 |
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65 def supporteddestrequirements(repo): |
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66 """Obtain requirements that upgrade supports in the destination. |
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67 |
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68 If the result of the upgrade would create requirements not in this set, |
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69 the upgrade is disallowed. |
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70 |
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71 Extensions should monkeypatch this to add their custom requirements. |
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72 """ |
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73 return { |
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74 'dotencode', |
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75 'fncache', |
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76 'generaldelta', |
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77 'revlogv1', |
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78 'store', |
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79 } |
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80 |
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81 def allowednewrequirements(repo): |
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82 """Obtain requirements that can be added to a repository during upgrade. |
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83 |
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84 This is used to disallow proposed requirements from being added when |
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85 they weren't present before. |
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86 |
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87 We use a list of allowed requirement additions instead of a list of known |
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88 bad additions because the whitelist approach is safer and will prevent |
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89 future, unknown requirements from accidentally being added. |
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90 """ |
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91 return { |
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92 'dotencode', |
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93 'fncache', |
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94 'generaldelta', |
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95 } |
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96 |
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97 deficiency = 'deficiency' |
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98 optimisation = 'optimization' |
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99 |
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100 class improvement(object): |
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101 """Represents an improvement that can be made as part of an upgrade. |
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102 |
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103 The following attributes are defined on each instance: |
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104 |
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105 name |
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106 Machine-readable string uniquely identifying this improvement. It |
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107 will be mapped to an action later in the upgrade process. |
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108 |
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109 type |
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110 Either ``deficiency`` or ``optimisation``. A deficiency is an obvious |
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111 problem. An optimization is an action (sometimes optional) that |
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112 can be taken to further improve the state of the repository. |
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113 |
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114 description |
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115 Message intended for humans explaining the improvement in more detail, |
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116 including the implications of it. For ``deficiency`` types, should be |
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117 worded in the present tense. For ``optimisation`` types, should be |
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118 worded in the future tense. |
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119 |
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120 upgrademessage |
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121 Message intended for humans explaining what an upgrade addressing this |
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122 issue will do. Should be worded in the future tense. |
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123 """ |
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124 def __init__(self, name, type, description, upgrademessage): |
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125 self.name = name |
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126 self.type = type |
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127 self.description = description |
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128 self.upgrademessage = upgrademessage |
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129 |
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130 def __eq__(self, other): |
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131 if not isinstance(other, improvement): |
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132 # This is what python tell use to do |
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133 return NotImplemented |
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134 return self.name == other.name |
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135 |
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136 def __ne__(self, other): |
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137 return not self == other |
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138 |
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139 def __hash__(self): |
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140 return hash(self.name) |
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141 |
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142 allformatvariant = [] |
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143 |
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144 def registerformatvariant(cls): |
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145 allformatvariant.append(cls) |
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146 return cls |
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147 |
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148 class formatvariant(improvement): |
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149 """an improvement subclass dedicated to repository format""" |
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150 type = deficiency |
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151 ### The following attributes should be defined for each class: |
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152 |
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153 # machine-readable string uniquely identifying this improvement. it will be |
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154 # mapped to an action later in the upgrade process. |
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155 name = None |
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156 |
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157 # message intended for humans explaining the improvement in more detail, |
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158 # including the implications of it ``deficiency`` types, should be worded |
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159 # in the present tense. |
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160 description = None |
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161 |
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162 # message intended for humans explaining what an upgrade addressing this |
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163 # issue will do. should be worded in the future tense. |
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164 upgrademessage = None |
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165 |
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166 # value of current Mercurial default for new repository |
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167 default = None |
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168 |
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169 def __init__(self): |
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170 raise NotImplementedError() |
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171 |
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172 @staticmethod |
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173 def fromrepo(repo): |
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174 """current value of the variant in the repository""" |
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175 raise NotImplementedError() |
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176 |
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177 @staticmethod |
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178 def fromconfig(repo): |
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179 """current value of the variant in the configuration""" |
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180 raise NotImplementedError() |
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181 |
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182 class requirementformatvariant(formatvariant): |
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183 """formatvariant based on a 'requirement' name. |
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184 |
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185 Many format variant are controlled by a 'requirement'. We define a small |
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186 subclass to factor the code. |
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187 """ |
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188 |
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189 # the requirement that control this format variant |
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190 _requirement = None |
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191 |
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192 @staticmethod |
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193 def _newreporequirements(repo): |
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194 return localrepo.newreporequirements(repo) |
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195 |
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196 @classmethod |
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197 def fromrepo(cls, repo): |
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198 assert cls._requirement is not None |
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199 return cls._requirement in repo.requirements |
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200 |
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201 @classmethod |
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202 def fromconfig(cls, repo): |
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203 assert cls._requirement is not None |
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204 return cls._requirement in cls._newreporequirements(repo) |
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205 |
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206 @registerformatvariant |
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207 class fncache(requirementformatvariant): |
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208 name = 'fncache' |
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209 |
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210 _requirement = 'fncache' |
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211 |
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212 default = True |
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213 |
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214 description = _('long and reserved filenames may not work correctly; ' |
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215 'repository performance is sub-optimal') |
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216 |
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217 upgrademessage = _('repository will be more resilient to storing ' |
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218 'certain paths and performance of certain ' |
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219 'operations should be improved') |
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220 |
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221 @registerformatvariant |
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222 class dotencode(requirementformatvariant): |
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223 name = 'dotencode' |
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224 |
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225 _requirement = 'dotencode' |
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226 |
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227 default = True |
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228 |
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229 description = _('storage of filenames beginning with a period or ' |
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230 'space may not work correctly') |
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231 |
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232 upgrademessage = _('repository will be better able to store files ' |
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233 'beginning with a space or period') |
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234 |
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235 @registerformatvariant |
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236 class generaldelta(requirementformatvariant): |
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237 name = 'generaldelta' |
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238 |
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239 _requirement = 'generaldelta' |
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240 |
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241 default = True |
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242 |
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243 description = _('deltas within internal storage are unable to ' |
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244 'choose optimal revisions; repository is larger and ' |
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245 'slower than it could be; interaction with other ' |
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246 'repositories may require extra network and CPU ' |
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247 'resources, making "hg push" and "hg pull" slower') |
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248 |
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249 upgrademessage = _('repository storage will be able to create ' |
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250 'optimal deltas; new repository data will be ' |
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251 'smaller and read times should decrease; ' |
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252 'interacting with other repositories using this ' |
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253 'storage model should require less network and ' |
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254 'CPU resources, making "hg push" and "hg pull" ' |
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255 'faster') |
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256 |
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257 @registerformatvariant |
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258 class removecldeltachain(formatvariant): |
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259 name = 'removecldeltachain' |
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260 |
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261 default = True |
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262 |
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263 description = _('changelog storage is using deltas instead of ' |
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264 'raw entries; changelog reading and any ' |
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265 'operation relying on changelog data are slower ' |
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266 'than they could be') |
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267 |
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268 upgrademessage = _('changelog storage will be reformated to ' |
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269 'store raw entries; changelog reading will be ' |
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270 'faster; changelog size may be reduced') |
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271 |
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272 @staticmethod |
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273 def fromrepo(repo): |
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274 # Mercurial 4.0 changed changelogs to not use delta chains. Search for |
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275 # changelogs with deltas. |
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276 cl = repo.changelog |
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277 chainbase = cl.chainbase |
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278 return all(rev == chainbase(rev) for rev in cl) |
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279 |
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280 @staticmethod |
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281 def fromconfig(repo): |
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282 return True |
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283 |
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284 def finddeficiencies(repo): |
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285 """returns a list of deficiencies that the repo suffer from""" |
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286 deficiencies = [] |
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287 |
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288 # We could detect lack of revlogv1 and store here, but they were added |
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289 # in 0.9.2 and we don't support upgrading repos without these |
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290 # requirements, so let's not bother. |
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291 |
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292 for fv in allformatvariant: |
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293 if not fv.fromrepo(repo): |
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294 deficiencies.append(fv) |
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295 |
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296 return deficiencies |
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297 |
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298 def findoptimizations(repo): |
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299 """Determine optimisation that could be used during upgrade""" |
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300 # These are unconditionally added. There is logic later that figures out |
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301 # which ones to apply. |
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302 optimizations = [] |
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303 |
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304 optimizations.append(improvement( |
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305 name='redeltaparent', |
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306 type=optimisation, |
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307 description=_('deltas within internal storage will be recalculated to ' |
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308 'choose an optimal base revision where this was not ' |
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309 'already done; the size of the repository may shrink and ' |
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310 'various operations may become faster; the first time ' |
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311 'this optimization is performed could slow down upgrade ' |
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312 'execution considerably; subsequent invocations should ' |
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313 'not run noticeably slower'), |
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314 upgrademessage=_('deltas within internal storage will choose a new ' |
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315 'base revision if needed'))) |
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316 |
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317 optimizations.append(improvement( |
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318 name='redeltamultibase', |
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319 type=optimisation, |
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320 description=_('deltas within internal storage will be recalculated ' |
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321 'against multiple base revision and the smallest ' |
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322 'difference will be used; the size of the repository may ' |
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323 'shrink significantly when there are many merges; this ' |
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324 'optimization will slow down execution in proportion to ' |
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325 'the number of merges in the repository and the amount ' |
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326 'of files in the repository; this slow down should not ' |
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327 'be significant unless there are tens of thousands of ' |
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328 'files and thousands of merges'), |
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329 upgrademessage=_('deltas within internal storage will choose an ' |
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330 'optimal delta by computing deltas against multiple ' |
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331 'parents; may slow down execution time ' |
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332 'significantly'))) |
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333 |
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334 optimizations.append(improvement( |
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335 name='redeltaall', |
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336 type=optimisation, |
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337 description=_('deltas within internal storage will always be ' |
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338 'recalculated without reusing prior deltas; this will ' |
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339 'likely make execution run several times slower; this ' |
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340 'optimization is typically not needed'), |
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341 upgrademessage=_('deltas within internal storage will be fully ' |
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342 'recomputed; this will likely drastically slow down ' |
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343 'execution time'))) |
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344 |
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345 return optimizations |
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346 |
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347 def determineactions(repo, deficiencies, sourcereqs, destreqs): |
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348 """Determine upgrade actions that will be performed. |
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349 |
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350 Given a list of improvements as returned by ``finddeficiencies`` and |
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351 ``findoptimizations``, determine the list of upgrade actions that |
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352 will be performed. |
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353 |
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354 The role of this function is to filter improvements if needed, apply |
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355 recommended optimizations from the improvements list that make sense, |
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356 etc. |
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357 |
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358 Returns a list of action names. |
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359 """ |
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360 newactions = [] |
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361 |
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362 knownreqs = supporteddestrequirements(repo) |
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363 |
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364 for d in deficiencies: |
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365 name = d.name |
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366 |
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367 # If the action is a requirement that doesn't show up in the |
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368 # destination requirements, prune the action. |
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369 if name in knownreqs and name not in destreqs: |
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370 continue |
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371 |
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372 newactions.append(d) |
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373 |
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374 # FUTURE consider adding some optimizations here for certain transitions. |
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375 # e.g. adding generaldelta could schedule parent redeltas. |
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376 |
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377 return newactions |
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378 |
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379 def _revlogfrompath(repo, path): |
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380 """Obtain a revlog from a repo path. |
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381 |
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382 An instance of the appropriate class is returned. |
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383 """ |
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384 if path == '00changelog.i': |
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385 return changelog.changelog(repo.svfs) |
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386 elif path.endswith('00manifest.i'): |
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387 mandir = path[:-len('00manifest.i')] |
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388 return manifest.manifestrevlog(repo.svfs, dir=mandir) |
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389 else: |
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390 # Filelogs don't do anything special with settings. So we can use a |
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391 # vanilla revlog. |
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392 return revlog.revlog(repo.svfs, path) |
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393 |
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394 def _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, aggressivemergedeltas): |
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395 """Copy revlogs between 2 repos.""" |
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396 revcount = 0 |
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397 srcsize = 0 |
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398 srcrawsize = 0 |
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399 dstsize = 0 |
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400 fcount = 0 |
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401 frevcount = 0 |
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402 fsrcsize = 0 |
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403 frawsize = 0 |
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404 fdstsize = 0 |
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405 mcount = 0 |
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406 mrevcount = 0 |
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407 msrcsize = 0 |
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408 mrawsize = 0 |
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409 mdstsize = 0 |
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410 crevcount = 0 |
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411 csrcsize = 0 |
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412 crawsize = 0 |
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413 cdstsize = 0 |
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414 |
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415 # Perform a pass to collect metadata. This validates we can open all |
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416 # source files and allows a unified progress bar to be displayed. |
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417 for unencoded, encoded, size in srcrepo.store.walk(): |
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418 if unencoded.endswith('.d'): |
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419 continue |
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420 |
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421 rl = _revlogfrompath(srcrepo, unencoded) |
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422 revcount += len(rl) |
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423 |
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424 datasize = 0 |
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425 rawsize = 0 |
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426 idx = rl.index |
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427 for rev in rl: |
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428 e = idx[rev] |
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429 datasize += e[1] |
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430 rawsize += e[2] |
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431 |
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432 srcsize += datasize |
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433 srcrawsize += rawsize |
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434 |
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435 # This is for the separate progress bars. |
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436 if isinstance(rl, changelog.changelog): |
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437 crevcount += len(rl) |
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438 csrcsize += datasize |
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439 crawsize += rawsize |
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440 elif isinstance(rl, manifest.manifestrevlog): |
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441 mcount += 1 |
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442 mrevcount += len(rl) |
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443 msrcsize += datasize |
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444 mrawsize += rawsize |
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445 elif isinstance(rl, revlog.revlog): |
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446 fcount += 1 |
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447 frevcount += len(rl) |
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448 fsrcsize += datasize |
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449 frawsize += rawsize |
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450 |
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451 if not revcount: |
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452 return |
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453 |
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454 ui.write(_('migrating %d total revisions (%d in filelogs, %d in manifests, ' |
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455 '%d in changelog)\n') % |
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456 (revcount, frevcount, mrevcount, crevcount)) |
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457 ui.write(_('migrating %s in store; %s tracked data\n') % ( |
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458 (util.bytecount(srcsize), util.bytecount(srcrawsize)))) |
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459 |
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460 # Used to keep track of progress. |
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461 progress = [] |
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462 def oncopiedrevision(rl, rev, node): |
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463 progress[1] += 1 |
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464 srcrepo.ui.progress(progress[0], progress[1], total=progress[2]) |
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465 |
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466 # Do the actual copying. |
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467 # FUTURE this operation can be farmed off to worker processes. |
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468 seen = set() |
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469 for unencoded, encoded, size in srcrepo.store.walk(): |
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470 if unencoded.endswith('.d'): |
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471 continue |
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472 |
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473 oldrl = _revlogfrompath(srcrepo, unencoded) |
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474 newrl = _revlogfrompath(dstrepo, unencoded) |
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475 |
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476 if isinstance(oldrl, changelog.changelog) and 'c' not in seen: |
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477 ui.write(_('finished migrating %d manifest revisions across %d ' |
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478 'manifests; change in size: %s\n') % |
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479 (mrevcount, mcount, util.bytecount(mdstsize - msrcsize))) |
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480 |
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481 ui.write(_('migrating changelog containing %d revisions ' |
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482 '(%s in store; %s tracked data)\n') % |
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483 (crevcount, util.bytecount(csrcsize), |
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484 util.bytecount(crawsize))) |
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485 seen.add('c') |
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486 progress[:] = [_('changelog revisions'), 0, crevcount] |
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487 elif isinstance(oldrl, manifest.manifestrevlog) and 'm' not in seen: |
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488 ui.write(_('finished migrating %d filelog revisions across %d ' |
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489 'filelogs; change in size: %s\n') % |
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490 (frevcount, fcount, util.bytecount(fdstsize - fsrcsize))) |
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491 |
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492 ui.write(_('migrating %d manifests containing %d revisions ' |
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493 '(%s in store; %s tracked data)\n') % |
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494 (mcount, mrevcount, util.bytecount(msrcsize), |
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495 util.bytecount(mrawsize))) |
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496 seen.add('m') |
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497 progress[:] = [_('manifest revisions'), 0, mrevcount] |
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498 elif 'f' not in seen: |
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499 ui.write(_('migrating %d filelogs containing %d revisions ' |
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500 '(%s in store; %s tracked data)\n') % |
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501 (fcount, frevcount, util.bytecount(fsrcsize), |
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502 util.bytecount(frawsize))) |
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503 seen.add('f') |
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504 progress[:] = [_('file revisions'), 0, frevcount] |
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505 |
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506 ui.progress(progress[0], progress[1], total=progress[2]) |
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507 |
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508 ui.note(_('cloning %d revisions from %s\n') % (len(oldrl), unencoded)) |
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509 oldrl.clone(tr, newrl, addrevisioncb=oncopiedrevision, |
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510 deltareuse=deltareuse, |
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511 aggressivemergedeltas=aggressivemergedeltas) |
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512 |
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513 datasize = 0 |
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514 idx = newrl.index |
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515 for rev in newrl: |
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516 datasize += idx[rev][1] |
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517 |
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518 dstsize += datasize |
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519 |
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520 if isinstance(newrl, changelog.changelog): |
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521 cdstsize += datasize |
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522 elif isinstance(newrl, manifest.manifestrevlog): |
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523 mdstsize += datasize |
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524 else: |
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525 fdstsize += datasize |
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526 |
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527 ui.progress(progress[0], None) |
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528 |
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529 ui.write(_('finished migrating %d changelog revisions; change in size: ' |
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530 '%s\n') % (crevcount, util.bytecount(cdstsize - csrcsize))) |
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531 |
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532 ui.write(_('finished migrating %d total revisions; total change in store ' |
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533 'size: %s\n') % (revcount, util.bytecount(dstsize - srcsize))) |
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534 |
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535 def _filterstorefile(srcrepo, dstrepo, requirements, path, mode, st): |
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536 """Determine whether to copy a store file during upgrade. |
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537 |
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538 This function is called when migrating store files from ``srcrepo`` to |
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539 ``dstrepo`` as part of upgrading a repository. |
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540 |
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541 Args: |
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542 srcrepo: repo we are copying from |
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543 dstrepo: repo we are copying to |
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544 requirements: set of requirements for ``dstrepo`` |
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545 path: store file being examined |
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546 mode: the ``ST_MODE`` file type of ``path`` |
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547 st: ``stat`` data structure for ``path`` |
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548 |
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549 Function should return ``True`` if the file is to be copied. |
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550 """ |
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551 # Skip revlogs. |
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552 if path.endswith(('.i', '.d')): |
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553 return False |
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554 # Skip transaction related files. |
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555 if path.startswith('undo'): |
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556 return False |
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557 # Only copy regular files. |
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558 if mode != stat.S_IFREG: |
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559 return False |
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560 # Skip other skipped files. |
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561 if path in ('lock', 'fncache'): |
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562 return False |
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563 |
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564 return True |
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565 |
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|
566 def _finishdatamigration(ui, srcrepo, dstrepo, requirements): |
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567 """Hook point for extensions to perform additional actions during upgrade. |
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568 |
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569 This function is called after revlogs and store files have been copied but |
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570 before the new store is swapped into the original location. |
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571 """ |
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572 |
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573 def _upgraderepo(ui, srcrepo, dstrepo, requirements, actions): |
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574 """Do the low-level work of upgrading a repository. |
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575 |
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576 The upgrade is effectively performed as a copy between a source |
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577 repository and a temporary destination repository. |
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|
578 |
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changeset
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579 The source repository is unmodified for as long as possible so the |
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580 upgrade can abort at any time without causing loss of service for |
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581 readers and without corrupting the source repository. |
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582 """ |
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583 assert srcrepo.currentwlock() |
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584 assert dstrepo.currentwlock() |
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585 |
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586 ui.write(_('(it is safe to interrupt this process any time before ' |
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587 'data migration completes)\n')) |
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588 |
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589 if 'redeltaall' in actions: |
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590 deltareuse = revlog.revlog.DELTAREUSENEVER |
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591 elif 'redeltaparent' in actions: |
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592 deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
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593 elif 'redeltamultibase' in actions: |
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594 deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
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595 else: |
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596 deltareuse = revlog.revlog.DELTAREUSEALWAYS |
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597 |
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598 with dstrepo.transaction('upgrade') as tr: |
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599 _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, |
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600 'redeltamultibase' in actions) |
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601 |
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602 # Now copy other files in the store directory. |
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603 # The sorted() makes execution deterministic. |
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604 for p, kind, st in sorted(srcrepo.store.vfs.readdir('', stat=True)): |
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605 if not _filterstorefile(srcrepo, dstrepo, requirements, |
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606 p, kind, st): |
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607 continue |
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608 |
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609 srcrepo.ui.write(_('copying %s\n') % p) |
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610 src = srcrepo.store.rawvfs.join(p) |
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611 dst = dstrepo.store.rawvfs.join(p) |
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612 util.copyfile(src, dst, copystat=True) |
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613 |
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614 _finishdatamigration(ui, srcrepo, dstrepo, requirements) |
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615 |
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616 ui.write(_('data fully migrated to temporary repository\n')) |
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617 |
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618 backuppath = tempfile.mkdtemp(prefix='upgradebackup.', dir=srcrepo.path) |
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619 backupvfs = vfsmod.vfs(backuppath) |
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620 |
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621 # Make a backup of requires file first, as it is the first to be modified. |
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622 util.copyfile(srcrepo.vfs.join('requires'), backupvfs.join('requires')) |
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623 |
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624 # We install an arbitrary requirement that clients must not support |
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625 # as a mechanism to lock out new clients during the data swap. This is |
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626 # better than allowing a client to continue while the repository is in |
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627 # an inconsistent state. |
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628 ui.write(_('marking source repository as being upgraded; clients will be ' |
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629 'unable to read from repository\n')) |
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630 scmutil.writerequires(srcrepo.vfs, |
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631 srcrepo.requirements | {'upgradeinprogress'}) |
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632 |
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633 ui.write(_('starting in-place swap of repository data\n')) |
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634 ui.write(_('replaced files will be backed up at %s\n') % |
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635 backuppath) |
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636 |
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637 # Now swap in the new store directory. Doing it as a rename should make |
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638 # the operation nearly instantaneous and atomic (at least in well-behaved |
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639 # environments). |
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640 ui.write(_('replacing store...\n')) |
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641 tstart = util.timer() |
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642 util.rename(srcrepo.spath, backupvfs.join('store')) |
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643 util.rename(dstrepo.spath, srcrepo.spath) |
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644 elapsed = util.timer() - tstart |
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645 ui.write(_('store replacement complete; repository was inconsistent for ' |
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646 '%0.1fs\n') % elapsed) |
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647 |
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648 # We first write the requirements file. Any new requirements will lock |
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649 # out legacy clients. |
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650 ui.write(_('finalizing requirements file and making repository readable ' |
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651 'again\n')) |
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652 scmutil.writerequires(srcrepo.vfs, requirements) |
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653 |
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654 # The lock file from the old store won't be removed because nothing has a |
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655 # reference to its new location. So clean it up manually. Alternatively, we |
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656 # could update srcrepo.svfs and other variables to point to the new |
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657 # location. This is simpler. |
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658 backupvfs.unlink('store/lock') |
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659 |
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660 return backuppath |
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661 |
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662 def upgraderepo(ui, repo, run=False, optimize=None): |
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663 """Upgrade a repository in place.""" |
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664 optimize = set(optimize or []) |
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665 repo = repo.unfiltered() |
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666 |
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667 # Ensure the repository can be upgraded. |
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668 missingreqs = requiredsourcerequirements(repo) - repo.requirements |
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669 if missingreqs: |
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670 raise error.Abort(_('cannot upgrade repository; requirement ' |
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671 'missing: %s') % _(', ').join(sorted(missingreqs))) |
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672 |
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673 blockedreqs = blocksourcerequirements(repo) & repo.requirements |
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674 if blockedreqs: |
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675 raise error.Abort(_('cannot upgrade repository; unsupported source ' |
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676 'requirement: %s') % |
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677 _(', ').join(sorted(blockedreqs))) |
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678 |
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679 # FUTURE there is potentially a need to control the wanted requirements via |
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680 # command arguments or via an extension hook point. |
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681 newreqs = localrepo.newreporequirements(repo) |
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682 |
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683 noremovereqs = (repo.requirements - newreqs - |
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|
684 supportremovedrequirements(repo)) |
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685 if noremovereqs: |
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686 raise error.Abort(_('cannot upgrade repository; requirement would be ' |
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687 'removed: %s') % _(', ').join(sorted(noremovereqs))) |
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688 |
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689 noaddreqs = (newreqs - repo.requirements - |
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690 allowednewrequirements(repo)) |
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691 if noaddreqs: |
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692 raise error.Abort(_('cannot upgrade repository; do not support adding ' |
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693 'requirement: %s') % |
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694 _(', ').join(sorted(noaddreqs))) |
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parents:
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diff
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|
695 |
31870
49011f1cedd4
upgrade: drop the prefix to the 'supporteddestrequirements' function
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diff
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|
696 unsupportedreqs = newreqs - supporteddestrequirements(repo) |
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697 if unsupportedreqs: |
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698 raise error.Abort(_('cannot upgrade repository; do not support ' |
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
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699 'destination requirement: %s') % |
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parents:
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diff
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|
700 _(', ').join(sorted(unsupportedreqs))) |
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diff
changeset
|
701 |
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repair: determine what upgrade will do
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|
702 # Find and validate all improvements that can be made. |
31899
cccd8e1538b0
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parents:
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diff
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|
703 alloptimizations = findoptimizations(repo) |
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repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
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diff
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|
704 |
31899
cccd8e1538b0
upgrade: filter optimizations outside of 'determineactions'
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parents:
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diff
changeset
|
705 # Apply and Validate arguments. |
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diff
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|
706 optimizations = [] |
cccd8e1538b0
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diff
changeset
|
707 for o in alloptimizations: |
cccd8e1538b0
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diff
changeset
|
708 if o.name in optimize: |
cccd8e1538b0
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diff
changeset
|
709 optimizations.append(o) |
cccd8e1538b0
upgrade: filter optimizations outside of 'determineactions'
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diff
changeset
|
710 optimize.discard(o.name) |
cccd8e1538b0
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diff
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|
711 |
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upgrade: filter optimizations outside of 'determineactions'
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diff
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|
712 if optimize: # anything left is unknown |
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diff
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|
713 raise error.Abort(_('unknown optimization action requested: %s') % |
31899
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parents:
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diff
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|
714 ', '.join(sorted(optimize)), |
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repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
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diff
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|
715 hint=_('run without arguments to see valid ' |
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diff
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|
716 'optimizations')) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
717 |
31897
d0067250542d
upgrade: simplify optimisations validation
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31896
diff
changeset
|
718 deficiencies = finddeficiencies(repo) |
31899
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diff
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|
719 actions = determineactions(repo, deficiencies, repo.requirements, newreqs) |
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fa1088de2119
upgrade: use 'improvement' object for action too
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diff
changeset
|
720 actions.extend(o for o in sorted(optimizations) |
31899
cccd8e1538b0
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diff
changeset
|
721 # determineactions could have added optimisation |
31903
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diff
changeset
|
722 if o not in actions) |
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
723 |
30775
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|
724 def printrequirements(): |
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|
725 ui.write(_('requirements\n')) |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
726 ui.write(_(' preserved: %s\n') % |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
727 _(', ').join(sorted(newreqs & repo.requirements))) |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
728 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
729 if repo.requirements - newreqs: |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
730 ui.write(_(' removed: %s\n') % |
513d68a90398
repair: implement requirements checking for upgrades
Gregory Szorc <gregory.szorc@gmail.com>
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diff
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|
731 _(', ').join(sorted(repo.requirements - newreqs))) |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
732 |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
733 if newreqs - repo.requirements: |
513d68a90398
repair: implement requirements checking for upgrades
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
734 ui.write(_(' added: %s\n') % |
513d68a90398
repair: implement requirements checking for upgrades
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
735 _(', ').join(sorted(newreqs - repo.requirements))) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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|
736 |
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|
737 ui.write('\n') |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
738 |
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|
739 def printupgradeactions(): |
31903
fa1088de2119
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changeset
|
740 for a in actions: |
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diff
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|
741 ui.write('%s\n %s\n\n' % (a.name, a.upgrademessage)) |
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changeset
|
742 |
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changeset
|
743 if not run: |
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|
744 fromconfig = [] |
31904
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upgrade: simplify the "origin" dispatch in dry run
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diff
changeset
|
745 onlydefault = [] |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
746 |
31901
9bdedb050d8d
upgrade: simplify some of the initial dispatch for dry run
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31900
diff
changeset
|
747 for d in deficiencies: |
32031
11a2461fc9b1
upgrade: move descriptions and selection logic in individual classes
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parents:
32030
diff
changeset
|
748 if d.fromconfig(repo): |
31901
9bdedb050d8d
upgrade: simplify some of the initial dispatch for dry run
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
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diff
changeset
|
749 fromconfig.append(d) |
32031
11a2461fc9b1
upgrade: move descriptions and selection logic in individual classes
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diff
changeset
|
750 elif d.default: |
31904
3c77f03f16b3
upgrade: simplify the "origin" dispatch in dry run
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31903
diff
changeset
|
751 onlydefault.append(d) |
30776
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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changeset
|
752 |
31904
3c77f03f16b3
upgrade: simplify the "origin" dispatch in dry run
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31903
diff
changeset
|
753 if fromconfig or onlydefault: |
30776
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diff
changeset
|
754 |
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parents:
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diff
changeset
|
755 if fromconfig: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
756 ui.write(_('repository lacks features recommended by ' |
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parents:
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diff
changeset
|
757 'current config options:\n\n')) |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
758 for i in fromconfig: |
3997edc4a86d
repair: determine what upgrade will do
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parents:
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diff
changeset
|
759 ui.write('%s\n %s\n\n' % (i.name, i.description)) |
3997edc4a86d
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
760 |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
761 if onlydefault: |
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parents:
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diff
changeset
|
762 ui.write(_('repository lacks features used by the default ' |
3997edc4a86d
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parents:
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diff
changeset
|
763 'config options:\n\n')) |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
764 for i in onlydefault: |
3997edc4a86d
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
765 ui.write('%s\n %s\n\n' % (i.name, i.description)) |
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repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
766 |
3997edc4a86d
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
767 ui.write('\n') |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
768 else: |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30775
diff
changeset
|
769 ui.write(_('(no feature deficiencies found in existing ' |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
770 'repository)\n')) |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
771 |
30775
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parents:
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diff
changeset
|
772 ui.write(_('performing an upgrade with "--run" will make the following ' |
513d68a90398
repair: implement requirements checking for upgrades
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
773 'changes:\n\n')) |
513d68a90398
repair: implement requirements checking for upgrades
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
774 |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
775 printrequirements() |
30776
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
776 printupgradeactions() |
3997edc4a86d
repair: determine what upgrade will do
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
777 |
31903
fa1088de2119
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diff
changeset
|
778 unusedoptimize = [i for i in alloptimizations if i not in actions] |
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parents:
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diff
changeset
|
779 |
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
changeset
|
780 if unusedoptimize: |
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parents:
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diff
changeset
|
781 ui.write(_('additional optimizations are available by specifying ' |
3997edc4a86d
repair: determine what upgrade will do
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parents:
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changeset
|
782 '"--optimize <name>":\n\n')) |
3997edc4a86d
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diff
changeset
|
783 for i in unusedoptimize: |
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repair: determine what upgrade will do
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parents:
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diff
changeset
|
784 ui.write(_('%s\n %s\n\n') % (i.name, i.description)) |
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diff
changeset
|
785 return |
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diff
changeset
|
786 |
7de7afd8bdd9
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diff
changeset
|
787 # Else we're in the run=true case. |
7de7afd8bdd9
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changeset
|
788 ui.write(_('upgrade will perform the following actions:\n\n')) |
7de7afd8bdd9
repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
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changeset
|
789 printrequirements() |
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diff
changeset
|
790 printupgradeactions() |
7de7afd8bdd9
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diff
changeset
|
791 |
31903
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diff
changeset
|
792 upgradeactions = [a.name for a in actions] |
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diff
changeset
|
793 |
30777
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changeset
|
794 ui.write(_('beginning upgrade...\n')) |
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diff
changeset
|
795 with repo.wlock(): |
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changeset
|
796 with repo.lock(): |
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changeset
|
797 ui.write(_('repository locked and read-only\n')) |
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diff
changeset
|
798 # Our strategy for upgrading the repository is to create a new, |
7de7afd8bdd9
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diff
changeset
|
799 # temporary repository, write data to it, then do a swap of the |
7de7afd8bdd9
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diff
changeset
|
800 # data. There are less heavyweight ways to do this, but it is easier |
7de7afd8bdd9
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changeset
|
801 # to create a new repo object than to instantiate all the components |
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parents:
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diff
changeset
|
802 # (like the store) separately. |
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diff
changeset
|
803 tmppath = tempfile.mkdtemp(prefix='upgrade.', dir=repo.path) |
7de7afd8bdd9
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diff
changeset
|
804 backuppath = None |
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parents:
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diff
changeset
|
805 try: |
7de7afd8bdd9
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
806 ui.write(_('creating temporary repository to stage migrated ' |
7de7afd8bdd9
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diff
changeset
|
807 'data: %s\n') % tmppath) |
7de7afd8bdd9
repair: begin implementation of in-place upgrading
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diff
changeset
|
808 dstrepo = localrepo.localrepository(repo.baseui, |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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809 path=tmppath, |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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810 create=True) |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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811 |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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812 with dstrepo.wlock(): |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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813 with dstrepo.lock(): |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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814 backuppath = _upgraderepo(ui, repo, dstrepo, newreqs, |
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815 upgradeactions) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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816 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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817 finally: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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818 ui.write(_('removing temporary repository %s\n') % tmppath) |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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819 repo.vfs.rmtree(tmppath, forcibly=True) |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
diff
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820 |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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changeset
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821 if backuppath: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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822 ui.warn(_('copy of old repository backed up at %s\n') % |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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823 backuppath) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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824 ui.warn(_('the old repository will not be deleted; remove ' |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30776
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825 'it to free up disk space once the upgraded ' |
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repair: begin implementation of in-place upgrading
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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826 'repository is verified\n')) |