Mercurial > hg
annotate mercurial/upgrade.py @ 35741:73432eee0ac4
fileset: add kind:pat operator
":" isn't taken as a symbol character but an infix operator so we can write
e.g. "path:'foo bar'" as well as "'path:foo bar'". An invalid pattern kind
is rejected in the former form as we know a kind is specified explicitly.
The binding strength is copied from "x:y" range operator of revset. Perhaps
it can be adjusted later if we want to parse "foo:bar()" as "(foo:bar)()",
not "foo:(bar())". We can also add "kind:" postfix operator if we want.
One possible confusion is that the scope of the leading "set:" vs "kind:pat"
operator. The former is consumed by a matcher so applies to the whole fileset
expression:
$ hg files 'set:foo() or kind:bar or baz'
^^^^^^^^^^^^^^^^^^^^^^^^
Whereas the scope of kind:pat operator is narrow:
$ hg files 'set:foo() or kind:bar or baz'
^^^
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 14 Jan 2018 13:29:15 +0900 |
parents | 29248ea26b29 |
children | 0147a4730420 |
rev | line source |
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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 filelog, |
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18 hg, |
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19 localrepo, |
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20 manifest, |
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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 def requiredsourcerequirements(repo): |
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28 """Obtain requirements required to be present to upgrade a repo. |
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29 |
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30 An upgrade will not be allowed if the repository doesn't have the |
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31 requirements returned by this function. |
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32 """ |
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33 return { |
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34 # Introduced in Mercurial 0.9.2. |
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35 'revlogv1', |
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36 # Introduced in Mercurial 0.9.2. |
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37 'store', |
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38 } |
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39 |
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40 def blocksourcerequirements(repo): |
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41 """Obtain requirements that will prevent an upgrade from occurring. |
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42 |
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43 An upgrade cannot be performed if the source repository contains a |
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44 requirements in the returned set. |
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45 """ |
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46 return { |
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47 # The upgrade code does not yet support these experimental features. |
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48 # This is an artificial limitation. |
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49 'manifestv2', |
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50 'treemanifest', |
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51 # This was a precursor to generaldelta and was never enabled by default. |
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52 # It should (hopefully) not exist in the wild. |
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53 'parentdelta', |
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54 # Upgrade should operate on the actual store, not the shared link. |
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55 'shared', |
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56 } |
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57 |
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58 def supportremovedrequirements(repo): |
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59 """Obtain requirements that can be removed during an upgrade. |
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60 |
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61 If an upgrade were to create a repository that dropped a requirement, |
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62 the dropped requirement must appear in the returned set for the upgrade |
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63 to be allowed. |
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64 """ |
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65 return set() |
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66 |
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67 def supporteddestrequirements(repo): |
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68 """Obtain requirements that upgrade supports in the destination. |
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69 |
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70 If the result of the upgrade would create requirements not in this set, |
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71 the upgrade is disallowed. |
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72 |
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73 Extensions should monkeypatch this to add their custom requirements. |
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74 """ |
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75 return { |
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76 'dotencode', |
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77 'fncache', |
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78 'generaldelta', |
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79 'revlogv1', |
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80 'store', |
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81 } |
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82 |
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83 def allowednewrequirements(repo): |
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84 """Obtain requirements that can be added to a repository during upgrade. |
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85 |
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86 This is used to disallow proposed requirements from being added when |
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87 they weren't present before. |
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88 |
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89 We use a list of allowed requirement additions instead of a list of known |
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90 bad additions because the whitelist approach is safer and will prevent |
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91 future, unknown requirements from accidentally being added. |
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92 """ |
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93 return { |
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94 'dotencode', |
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95 'fncache', |
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96 'generaldelta', |
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97 } |
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98 |
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99 def preservedrequirements(repo): |
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100 return set() |
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101 |
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102 deficiency = 'deficiency' |
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103 optimisation = 'optimization' |
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104 |
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105 class improvement(object): |
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106 """Represents an improvement that can be made as part of an upgrade. |
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107 |
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108 The following attributes are defined on each instance: |
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109 |
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110 name |
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111 Machine-readable string uniquely identifying this improvement. It |
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112 will be mapped to an action later in the upgrade process. |
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113 |
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114 type |
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115 Either ``deficiency`` or ``optimisation``. A deficiency is an obvious |
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116 problem. An optimization is an action (sometimes optional) that |
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117 can be taken to further improve the state of the repository. |
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118 |
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119 description |
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120 Message intended for humans explaining the improvement in more detail, |
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121 including the implications of it. For ``deficiency`` types, should be |
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122 worded in the present tense. For ``optimisation`` types, should be |
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123 worded in the future tense. |
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124 |
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125 upgrademessage |
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126 Message intended for humans explaining what an upgrade addressing this |
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127 issue will do. Should be worded in the future tense. |
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128 """ |
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129 def __init__(self, name, type, description, upgrademessage): |
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130 self.name = name |
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131 self.type = type |
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132 self.description = description |
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133 self.upgrademessage = upgrademessage |
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134 |
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135 def __eq__(self, other): |
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136 if not isinstance(other, improvement): |
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137 # This is what python tell use to do |
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138 return NotImplemented |
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139 return self.name == other.name |
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140 |
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141 def __ne__(self, other): |
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142 return not self == other |
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143 |
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144 def __hash__(self): |
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145 return hash(self.name) |
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146 |
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147 allformatvariant = [] |
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148 |
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149 def registerformatvariant(cls): |
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150 allformatvariant.append(cls) |
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151 return cls |
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152 |
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153 class formatvariant(improvement): |
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154 """an improvement subclass dedicated to repository format""" |
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155 type = deficiency |
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156 ### The following attributes should be defined for each class: |
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157 |
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158 # machine-readable string uniquely identifying this improvement. it will be |
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159 # mapped to an action later in the upgrade process. |
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160 name = None |
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161 |
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162 # message intended for humans explaining the improvement in more detail, |
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163 # including the implications of it ``deficiency`` types, should be worded |
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164 # in the present tense. |
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165 description = None |
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166 |
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167 # message intended for humans explaining what an upgrade addressing this |
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168 # issue will do. should be worded in the future tense. |
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169 upgrademessage = None |
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170 |
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171 # value of current Mercurial default for new repository |
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172 default = None |
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173 |
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174 def __init__(self): |
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175 raise NotImplementedError() |
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176 |
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177 @staticmethod |
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178 def fromrepo(repo): |
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179 """current value of the variant in the repository""" |
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180 raise NotImplementedError() |
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181 |
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182 @staticmethod |
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183 def fromconfig(repo): |
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184 """current value of the variant in the configuration""" |
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185 raise NotImplementedError() |
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186 |
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187 class requirementformatvariant(formatvariant): |
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188 """formatvariant based on a 'requirement' name. |
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189 |
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190 Many format variant are controlled by a 'requirement'. We define a small |
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191 subclass to factor the code. |
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192 """ |
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193 |
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194 # the requirement that control this format variant |
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195 _requirement = None |
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196 |
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197 @staticmethod |
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198 def _newreporequirements(repo): |
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199 return localrepo.newreporequirements(repo) |
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200 |
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201 @classmethod |
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202 def fromrepo(cls, repo): |
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203 assert cls._requirement is not None |
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204 return cls._requirement in repo.requirements |
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205 |
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206 @classmethod |
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207 def fromconfig(cls, repo): |
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208 assert cls._requirement is not None |
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209 return cls._requirement in cls._newreporequirements(repo) |
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210 |
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211 @registerformatvariant |
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212 class fncache(requirementformatvariant): |
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213 name = 'fncache' |
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214 |
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215 _requirement = 'fncache' |
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216 |
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217 default = True |
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218 |
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219 description = _('long and reserved filenames may not work correctly; ' |
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220 'repository performance is sub-optimal') |
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221 |
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222 upgrademessage = _('repository will be more resilient to storing ' |
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223 'certain paths and performance of certain ' |
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224 'operations should be improved') |
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225 |
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226 @registerformatvariant |
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227 class dotencode(requirementformatvariant): |
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228 name = 'dotencode' |
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229 |
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230 _requirement = 'dotencode' |
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231 |
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232 default = True |
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233 |
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234 description = _('storage of filenames beginning with a period or ' |
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235 'space may not work correctly') |
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236 |
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237 upgrademessage = _('repository will be better able to store files ' |
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238 'beginning with a space or period') |
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239 |
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240 @registerformatvariant |
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241 class generaldelta(requirementformatvariant): |
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242 name = 'generaldelta' |
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243 |
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244 _requirement = 'generaldelta' |
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245 |
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246 default = True |
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247 |
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248 description = _('deltas within internal storage are unable to ' |
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249 'choose optimal revisions; repository is larger and ' |
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250 'slower than it could be; interaction with other ' |
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251 'repositories may require extra network and CPU ' |
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252 'resources, making "hg push" and "hg pull" slower') |
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253 |
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254 upgrademessage = _('repository storage will be able to create ' |
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255 'optimal deltas; new repository data will be ' |
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256 'smaller and read times should decrease; ' |
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257 'interacting with other repositories using this ' |
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258 'storage model should require less network and ' |
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259 'CPU resources, making "hg push" and "hg pull" ' |
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260 'faster') |
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261 |
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262 @registerformatvariant |
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263 class removecldeltachain(formatvariant): |
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264 name = 'plain-cl-delta' |
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265 |
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266 default = True |
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267 |
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268 description = _('changelog storage is using deltas instead of ' |
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269 'raw entries; changelog reading and any ' |
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270 'operation relying on changelog data are slower ' |
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271 'than they could be') |
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272 |
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273 upgrademessage = _('changelog storage will be reformated to ' |
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274 'store raw entries; changelog reading will be ' |
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275 'faster; changelog size may be reduced') |
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276 |
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277 @staticmethod |
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278 def fromrepo(repo): |
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279 # Mercurial 4.0 changed changelogs to not use delta chains. Search for |
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280 # changelogs with deltas. |
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281 cl = repo.changelog |
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282 chainbase = cl.chainbase |
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283 return all(rev == chainbase(rev) for rev in cl) |
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284 |
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285 @staticmethod |
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286 def fromconfig(repo): |
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287 return True |
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288 |
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289 @registerformatvariant |
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290 class compressionengine(formatvariant): |
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291 name = 'compression' |
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292 default = 'zlib' |
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293 |
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294 description = _('Compresion algorithm used to compress data. ' |
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295 'Some engine are faster than other') |
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296 |
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297 upgrademessage = _('revlog content will be recompressed with the new ' |
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298 'algorithm.') |
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299 |
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300 @classmethod |
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301 def fromrepo(cls, repo): |
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302 for req in repo.requirements: |
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303 if req.startswith('exp-compression-'): |
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304 return req.split('-', 2)[2] |
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305 return 'zlib' |
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306 |
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307 @classmethod |
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308 def fromconfig(cls, repo): |
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309 return repo.ui.config('experimental', 'format.compression') |
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310 |
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311 def finddeficiencies(repo): |
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312 """returns a list of deficiencies that the repo suffer from""" |
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313 deficiencies = [] |
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314 |
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315 # We could detect lack of revlogv1 and store here, but they were added |
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316 # in 0.9.2 and we don't support upgrading repos without these |
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317 # requirements, so let's not bother. |
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318 |
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319 for fv in allformatvariant: |
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320 if not fv.fromrepo(repo): |
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321 deficiencies.append(fv) |
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322 |
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323 return deficiencies |
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324 |
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325 def findoptimizations(repo): |
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326 """Determine optimisation that could be used during upgrade""" |
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327 # These are unconditionally added. There is logic later that figures out |
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328 # which ones to apply. |
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329 optimizations = [] |
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330 |
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331 optimizations.append(improvement( |
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332 name='redeltaparent', |
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333 type=optimisation, |
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334 description=_('deltas within internal storage will be recalculated to ' |
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335 'choose an optimal base revision where this was not ' |
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336 'already done; the size of the repository may shrink and ' |
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337 'various operations may become faster; the first time ' |
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338 'this optimization is performed could slow down upgrade ' |
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339 'execution considerably; subsequent invocations should ' |
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340 'not run noticeably slower'), |
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341 upgrademessage=_('deltas within internal storage will choose a new ' |
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342 'base revision if needed'))) |
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343 |
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344 optimizations.append(improvement( |
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345 name='redeltamultibase', |
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346 type=optimisation, |
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347 description=_('deltas within internal storage will be recalculated ' |
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348 'against multiple base revision and the smallest ' |
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349 'difference will be used; the size of the repository may ' |
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350 'shrink significantly when there are many merges; this ' |
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351 'optimization will slow down execution in proportion to ' |
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352 'the number of merges in the repository and the amount ' |
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353 'of files in the repository; this slow down should not ' |
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354 'be significant unless there are tens of thousands of ' |
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355 'files and thousands of merges'), |
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356 upgrademessage=_('deltas within internal storage will choose an ' |
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357 'optimal delta by computing deltas against multiple ' |
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358 'parents; may slow down execution time ' |
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359 'significantly'))) |
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360 |
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361 optimizations.append(improvement( |
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362 name='redeltaall', |
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363 type=optimisation, |
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364 description=_('deltas within internal storage will always be ' |
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365 'recalculated without reusing prior deltas; this will ' |
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366 'likely make execution run several times slower; this ' |
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367 'optimization is typically not needed'), |
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368 upgrademessage=_('deltas within internal storage will be fully ' |
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369 'recomputed; this will likely drastically slow down ' |
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370 'execution time'))) |
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371 |
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372 optimizations.append(improvement( |
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373 name='redeltafulladd', |
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374 type=optimisation, |
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375 description=_('every revision will be re-added as if it was new ' |
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376 'content. It will go through the full storage ' |
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377 'mechanism giving extensions a chance to process it ' |
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378 '(eg. lfs). This is similar to "redeltaall" but even ' |
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379 'slower since more logic is involved.'), |
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380 upgrademessage=_('each revision will be added as new content to the ' |
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381 'internal storage; this will likely drastically slow ' |
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382 'down execution time, but some extensions might need ' |
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383 'it'))) |
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384 |
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385 return optimizations |
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386 |
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387 def determineactions(repo, deficiencies, sourcereqs, destreqs): |
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388 """Determine upgrade actions that will be performed. |
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389 |
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390 Given a list of improvements as returned by ``finddeficiencies`` and |
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391 ``findoptimizations``, determine the list of upgrade actions that |
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392 will be performed. |
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393 |
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394 The role of this function is to filter improvements if needed, apply |
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395 recommended optimizations from the improvements list that make sense, |
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396 etc. |
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397 |
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398 Returns a list of action names. |
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399 """ |
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400 newactions = [] |
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401 |
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402 knownreqs = supporteddestrequirements(repo) |
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403 |
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404 for d in deficiencies: |
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405 name = d.name |
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406 |
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407 # If the action is a requirement that doesn't show up in the |
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408 # destination requirements, prune the action. |
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409 if name in knownreqs and name not in destreqs: |
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410 continue |
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411 |
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412 newactions.append(d) |
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413 |
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414 # FUTURE consider adding some optimizations here for certain transitions. |
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415 # e.g. adding generaldelta could schedule parent redeltas. |
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416 |
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417 return newactions |
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418 |
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419 def _revlogfrompath(repo, path): |
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420 """Obtain a revlog from a repo path. |
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421 |
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422 An instance of the appropriate class is returned. |
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423 """ |
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424 if path == '00changelog.i': |
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425 return changelog.changelog(repo.svfs) |
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426 elif path.endswith('00manifest.i'): |
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427 mandir = path[:-len('00manifest.i')] |
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428 return manifest.manifestrevlog(repo.svfs, dir=mandir) |
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429 else: |
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430 #reverse of "/".join(("data", path + ".i")) |
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431 return filelog.filelog(repo.svfs, path[5:-2]) |
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432 |
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433 def _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, aggressivemergedeltas): |
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434 """Copy revlogs between 2 repos.""" |
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435 revcount = 0 |
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436 srcsize = 0 |
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437 srcrawsize = 0 |
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438 dstsize = 0 |
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439 fcount = 0 |
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440 frevcount = 0 |
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441 fsrcsize = 0 |
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442 frawsize = 0 |
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443 fdstsize = 0 |
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444 mcount = 0 |
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445 mrevcount = 0 |
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446 msrcsize = 0 |
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447 mrawsize = 0 |
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448 mdstsize = 0 |
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449 crevcount = 0 |
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450 csrcsize = 0 |
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451 crawsize = 0 |
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452 cdstsize = 0 |
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453 |
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454 # Perform a pass to collect metadata. This validates we can open all |
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455 # source files and allows a unified progress bar to be displayed. |
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456 for unencoded, encoded, size in srcrepo.store.walk(): |
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457 if unencoded.endswith('.d'): |
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458 continue |
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459 |
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460 rl = _revlogfrompath(srcrepo, unencoded) |
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461 revcount += len(rl) |
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parents:
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|
462 |
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|
463 datasize = 0 |
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|
464 rawsize = 0 |
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|
465 idx = rl.index |
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|
466 for rev in rl: |
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|
467 e = idx[rev] |
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|
468 datasize += e[1] |
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diff
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|
469 rawsize += e[2] |
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diff
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|
470 |
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diff
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|
471 srcsize += datasize |
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diff
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|
472 srcrawsize += rawsize |
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diff
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|
473 |
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|
474 # This is for the separate progress bars. |
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diff
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|
475 if isinstance(rl, changelog.changelog): |
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|
476 crevcount += len(rl) |
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|
477 csrcsize += datasize |
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|
478 crawsize += rawsize |
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diff
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|
479 elif isinstance(rl, manifest.manifestrevlog): |
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|
480 mcount += 1 |
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|
481 mrevcount += len(rl) |
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|
482 msrcsize += datasize |
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|
483 mrawsize += rawsize |
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repair: migrate revlogs during upgrade
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484 elif isinstance(rl, revlog.revlog): |
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|
485 fcount += 1 |
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|
486 frevcount += len(rl) |
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|
487 fsrcsize += datasize |
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|
488 frawsize += rawsize |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
489 |
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|
490 if not revcount: |
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diff
changeset
|
491 return |
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parents:
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diff
changeset
|
492 |
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Gregory Szorc <gregory.szorc@gmail.com>
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changeset
|
493 ui.write(_('migrating %d total revisions (%d in filelogs, %d in manifests, ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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diff
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|
494 '%d in changelog)\n') % |
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repair: migrate revlogs during upgrade
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parents:
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diff
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|
495 (revcount, frevcount, mrevcount, crevcount)) |
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|
496 ui.write(_('migrating %s in store; %s tracked data\n') % ( |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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|
497 (util.bytecount(srcsize), util.bytecount(srcrawsize)))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
498 |
38aa1ca97b6a
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parents:
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diff
changeset
|
499 # Used to keep track of progress. |
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|
500 progress = [] |
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|
501 def oncopiedrevision(rl, rev, node): |
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|
502 progress[1] += 1 |
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repair: migrate revlogs during upgrade
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|
503 srcrepo.ui.progress(progress[0], progress[1], total=progress[2]) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
504 |
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parents:
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diff
changeset
|
505 # Do the actual copying. |
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parents:
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|
506 # FUTURE this operation can be farmed off to worker processes. |
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|
507 seen = set() |
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repair: migrate revlogs during upgrade
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|
508 for unencoded, encoded, size in srcrepo.store.walk(): |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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diff
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|
509 if unencoded.endswith('.d'): |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
510 continue |
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repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
511 |
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parents:
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diff
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|
512 oldrl = _revlogfrompath(srcrepo, unencoded) |
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|
513 newrl = _revlogfrompath(dstrepo, unencoded) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
514 |
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repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
515 if isinstance(oldrl, changelog.changelog) and 'c' not in seen: |
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repair: migrate revlogs during upgrade
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diff
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|
516 ui.write(_('finished migrating %d manifest revisions across %d ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
517 'manifests; change in size: %s\n') % |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
518 (mrevcount, mcount, util.bytecount(mdstsize - msrcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
519 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
520 ui.write(_('migrating changelog containing %d revisions ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
521 '(%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
changeset
|
522 (crevcount, util.bytecount(csrcsize), |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
523 util.bytecount(crawsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
524 seen.add('c') |
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diff
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|
525 progress[:] = [_('changelog revisions'), 0, crevcount] |
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diff
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|
526 elif isinstance(oldrl, manifest.manifestrevlog) and 'm' not in seen: |
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parents:
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diff
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|
527 ui.write(_('finished migrating %d filelog revisions across %d ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
528 'filelogs; change in size: %s\n') % |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
529 (frevcount, fcount, util.bytecount(fdstsize - fsrcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
530 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
531 ui.write(_('migrating %d manifests containing %d revisions ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
532 '(%s in store; %s tracked data)\n') % |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
533 (mcount, mrevcount, util.bytecount(msrcsize), |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
534 util.bytecount(mrawsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
535 seen.add('m') |
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repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
536 progress[:] = [_('manifest revisions'), 0, mrevcount] |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
537 elif 'f' not in seen: |
38aa1ca97b6a
repair: migrate revlogs during upgrade
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parents:
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diff
changeset
|
538 ui.write(_('migrating %d filelogs containing %d revisions ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
539 '(%s in store; %s tracked data)\n') % |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
540 (fcount, frevcount, util.bytecount(fsrcsize), |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
541 util.bytecount(frawsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
542 seen.add('f') |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
543 progress[:] = [_('file revisions'), 0, frevcount] |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
544 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
545 ui.progress(progress[0], progress[1], total=progress[2]) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
546 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
547 ui.note(_('cloning %d revisions from %s\n') % (len(oldrl), unencoded)) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
548 oldrl.clone(tr, newrl, addrevisioncb=oncopiedrevision, |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
549 deltareuse=deltareuse, |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
550 aggressivemergedeltas=aggressivemergedeltas) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
551 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
552 datasize = 0 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
553 idx = newrl.index |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
554 for rev in newrl: |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
555 datasize += idx[rev][1] |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
556 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
557 dstsize += datasize |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
558 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
559 if isinstance(newrl, changelog.changelog): |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
560 cdstsize += datasize |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
561 elif isinstance(newrl, manifest.manifestrevlog): |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
562 mdstsize += datasize |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
563 else: |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
564 fdstsize += datasize |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
565 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
566 ui.progress(progress[0], None) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
567 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
568 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
|
569 '%s\n') % (crevcount, util.bytecount(cdstsize - csrcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
570 |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
571 ui.write(_('finished migrating %d total revisions; total change in store ' |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
572 'size: %s\n') % (revcount, util.bytecount(dstsize - srcsize))) |
38aa1ca97b6a
repair: migrate revlogs during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30777
diff
changeset
|
573 |
31873
d6c2005484b6
upgrade: drop the prefix to the '_filterstorefile' function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31872
diff
changeset
|
574 def _filterstorefile(srcrepo, dstrepo, requirements, path, mode, st): |
30780
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30779
diff
changeset
|
575 """Determine whether to copy a store file during upgrade. |
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
576 |
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30779
diff
changeset
|
577 This function is called when migrating store files from ``srcrepo`` to |
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30779
diff
changeset
|
578 ``dstrepo`` as part of upgrading a repository. |
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
579 |
2603d04889e1
repair: copy non-revlog store files during upgrade
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
580 Args: |
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581 srcrepo: repo we are copying from |
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582 dstrepo: repo we are copying to |
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583 requirements: set of requirements for ``dstrepo`` |
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584 path: store file being examined |
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585 mode: the ``ST_MODE`` file type of ``path`` |
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586 st: ``stat`` data structure for ``path`` |
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587 |
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588 Function should return ``True`` if the file is to be copied. |
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589 """ |
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590 # Skip revlogs. |
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591 if path.endswith(('.i', '.d')): |
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592 return False |
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593 # Skip transaction related files. |
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594 if path.startswith('undo'): |
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595 return False |
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596 # Only copy regular files. |
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597 if mode != stat.S_IFREG: |
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598 return False |
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599 # Skip other skipped files. |
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600 if path in ('lock', 'fncache'): |
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601 return False |
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|
602 |
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603 return True |
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604 |
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605 def _finishdatamigration(ui, srcrepo, dstrepo, requirements): |
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606 """Hook point for extensions to perform additional actions during upgrade. |
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607 |
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608 This function is called after revlogs and store files have been copied but |
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609 before the new store is swapped into the original location. |
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610 """ |
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611 |
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612 def _upgraderepo(ui, srcrepo, dstrepo, requirements, actions): |
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613 """Do the low-level work of upgrading a repository. |
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614 |
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615 The upgrade is effectively performed as a copy between a source |
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616 repository and a temporary destination repository. |
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617 |
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618 The source repository is unmodified for as long as possible so the |
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619 upgrade can abort at any time without causing loss of service for |
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620 readers and without corrupting the source repository. |
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621 """ |
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622 assert srcrepo.currentwlock() |
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623 assert dstrepo.currentwlock() |
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624 |
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625 ui.write(_('(it is safe to interrupt this process any time before ' |
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626 'data migration completes)\n')) |
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627 |
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628 if 'redeltaall' in actions: |
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629 deltareuse = revlog.revlog.DELTAREUSENEVER |
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630 elif 'redeltaparent' in actions: |
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631 deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
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632 elif 'redeltamultibase' in actions: |
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633 deltareuse = revlog.revlog.DELTAREUSESAMEREVS |
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634 elif 'redeltafulladd' in actions: |
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635 deltareuse = revlog.revlog.DELTAREUSEFULLADD |
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636 else: |
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637 deltareuse = revlog.revlog.DELTAREUSEALWAYS |
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638 |
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639 with dstrepo.transaction('upgrade') as tr: |
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640 _copyrevlogs(ui, srcrepo, dstrepo, tr, deltareuse, |
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641 'redeltamultibase' in actions) |
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642 |
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643 # Now copy other files in the store directory. |
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644 # The sorted() makes execution deterministic. |
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645 for p, kind, st in sorted(srcrepo.store.vfs.readdir('', stat=True)): |
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646 if not _filterstorefile(srcrepo, dstrepo, requirements, |
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647 p, kind, st): |
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648 continue |
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649 |
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650 srcrepo.ui.write(_('copying %s\n') % p) |
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651 src = srcrepo.store.rawvfs.join(p) |
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652 dst = dstrepo.store.rawvfs.join(p) |
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653 util.copyfile(src, dst, copystat=True) |
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654 |
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655 _finishdatamigration(ui, srcrepo, dstrepo, requirements) |
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656 |
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657 ui.write(_('data fully migrated to temporary repository\n')) |
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658 |
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659 backuppath = tempfile.mkdtemp(prefix='upgradebackup.', dir=srcrepo.path) |
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660 backupvfs = vfsmod.vfs(backuppath) |
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661 |
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662 # Make a backup of requires file first, as it is the first to be modified. |
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663 util.copyfile(srcrepo.vfs.join('requires'), backupvfs.join('requires')) |
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664 |
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665 # We install an arbitrary requirement that clients must not support |
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666 # as a mechanism to lock out new clients during the data swap. This is |
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667 # better than allowing a client to continue while the repository is in |
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668 # an inconsistent state. |
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669 ui.write(_('marking source repository as being upgraded; clients will be ' |
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670 'unable to read from repository\n')) |
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671 scmutil.writerequires(srcrepo.vfs, |
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672 srcrepo.requirements | {'upgradeinprogress'}) |
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673 |
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674 ui.write(_('starting in-place swap of repository data\n')) |
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675 ui.write(_('replaced files will be backed up at %s\n') % |
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676 backuppath) |
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677 |
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678 # Now swap in the new store directory. Doing it as a rename should make |
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679 # the operation nearly instantaneous and atomic (at least in well-behaved |
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680 # environments). |
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681 ui.write(_('replacing store...\n')) |
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682 tstart = util.timer() |
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683 util.rename(srcrepo.spath, backupvfs.join('store')) |
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684 util.rename(dstrepo.spath, srcrepo.spath) |
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685 elapsed = util.timer() - tstart |
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686 ui.write(_('store replacement complete; repository was inconsistent for ' |
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687 '%0.1fs\n') % elapsed) |
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688 |
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689 # We first write the requirements file. Any new requirements will lock |
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690 # out legacy clients. |
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691 ui.write(_('finalizing requirements file and making repository readable ' |
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692 'again\n')) |
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693 scmutil.writerequires(srcrepo.vfs, requirements) |
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|
694 |
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|
695 # The lock file from the old store won't be removed because nothing has a |
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696 # reference to its new location. So clean it up manually. Alternatively, we |
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697 # could update srcrepo.svfs and other variables to point to the new |
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698 # location. This is simpler. |
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699 backupvfs.unlink('store/lock') |
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diff
changeset
|
700 |
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diff
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|
701 return backuppath |
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|
702 |
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703 def upgraderepo(ui, repo, run=False, optimize=None): |
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704 """Upgrade a repository in place.""" |
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705 optimize = set(optimize or []) |
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706 repo = repo.unfiltered() |
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changeset
|
707 |
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parents:
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diff
changeset
|
708 # Ensure the repository can be upgraded. |
31865
5dcaa0f4455b
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parents:
31864
diff
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|
709 missingreqs = requiredsourcerequirements(repo) - repo.requirements |
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710 if missingreqs: |
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parents:
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711 raise error.Abort(_('cannot upgrade repository; requirement ' |
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712 'missing: %s') % _(', ').join(sorted(missingreqs))) |
513d68a90398
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diff
changeset
|
713 |
31866
1454726b6d7c
upgrade: drop the prefix to the 'blocksourcerequirements' function
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parents:
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diff
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|
714 blockedreqs = blocksourcerequirements(repo) & repo.requirements |
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diff
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715 if blockedreqs: |
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parents:
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diff
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|
716 raise error.Abort(_('cannot upgrade repository; unsupported source ' |
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diff
changeset
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717 'requirement: %s') % |
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parents:
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diff
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|
718 _(', ').join(sorted(blockedreqs))) |
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diff
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|
719 |
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changeset
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720 # FUTURE there is potentially a need to control the wanted requirements via |
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parents:
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diff
changeset
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721 # command arguments or via an extension hook point. |
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parents:
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diff
changeset
|
722 newreqs = localrepo.newreporequirements(repo) |
35302
ad2b35ebf670
upgraderepo: allow extension to register preserved requirements
Boris Feld <boris.feld@octobus.net>
parents:
33438
diff
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|
723 newreqs.update(preservedrequirements(repo)) |
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diff
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|
724 |
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parents:
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diff
changeset
|
725 noremovereqs = (repo.requirements - newreqs - |
31867
cc60b6c36637
upgrade: drop the prefix to the 'supportremovedrequirements' function
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parents:
31866
diff
changeset
|
726 supportremovedrequirements(repo)) |
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diff
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|
727 if noremovereqs: |
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parents:
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diff
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|
728 raise error.Abort(_('cannot upgrade repository; requirement would be ' |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
729 'removed: %s') % _(', ').join(sorted(noremovereqs))) |
513d68a90398
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parents:
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changeset
|
730 |
513d68a90398
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parents:
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diff
changeset
|
731 noaddreqs = (newreqs - repo.requirements - |
31869
fe5e30b58934
upgrade: drop the prefix to the 'allowednewrequirements' function
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parents:
31868
diff
changeset
|
732 allowednewrequirements(repo)) |
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diff
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|
733 if noaddreqs: |
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parents:
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|
734 raise error.Abort(_('cannot upgrade repository; do not support adding ' |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
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diff
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|
735 'requirement: %s') % |
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parents:
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changeset
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736 _(', ').join(sorted(noaddreqs))) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
737 |
31870
49011f1cedd4
upgrade: drop the prefix to the 'supporteddestrequirements' function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
31869
diff
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|
738 unsupportedreqs = newreqs - supporteddestrequirements(repo) |
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|
739 if unsupportedreqs: |
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parents:
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diff
changeset
|
740 raise error.Abort(_('cannot upgrade repository; do not support ' |
513d68a90398
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parents:
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diff
changeset
|
741 'destination requirement: %s') % |
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parents:
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changeset
|
742 _(', ').join(sorted(unsupportedreqs))) |
513d68a90398
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changeset
|
743 |
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diff
changeset
|
744 # Find and validate all improvements that can be made. |
31899
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parents:
31898
diff
changeset
|
745 alloptimizations = findoptimizations(repo) |
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diff
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|
746 |
31899
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diff
changeset
|
747 # Apply and Validate arguments. |
cccd8e1538b0
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diff
changeset
|
748 optimizations = [] |
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diff
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|
749 for o in alloptimizations: |
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diff
changeset
|
750 if o.name in optimize: |
cccd8e1538b0
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diff
changeset
|
751 optimizations.append(o) |
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diff
changeset
|
752 optimize.discard(o.name) |
cccd8e1538b0
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diff
changeset
|
753 |
cccd8e1538b0
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diff
changeset
|
754 if optimize: # anything left is unknown |
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diff
changeset
|
755 raise error.Abort(_('unknown optimization action requested: %s') % |
31899
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parents:
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diff
changeset
|
756 ', '.join(sorted(optimize)), |
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changeset
|
757 hint=_('run without arguments to see valid ' |
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diff
changeset
|
758 'optimizations')) |
3997edc4a86d
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parents:
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diff
changeset
|
759 |
31897
d0067250542d
upgrade: simplify optimisations validation
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parents:
31896
diff
changeset
|
760 deficiencies = finddeficiencies(repo) |
31899
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parents:
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diff
changeset
|
761 actions = determineactions(repo, deficiencies, repo.requirements, newreqs) |
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31902
diff
changeset
|
762 actions.extend(o for o in sorted(optimizations) |
31899
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diff
changeset
|
763 # determineactions could have added optimisation |
31903
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diff
changeset
|
764 if o not in actions) |
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diff
changeset
|
765 |
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diff
changeset
|
766 def printrequirements(): |
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diff
changeset
|
767 ui.write(_('requirements\n')) |
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parents:
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diff
changeset
|
768 ui.write(_(' preserved: %s\n') % |
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diff
changeset
|
769 _(', ').join(sorted(newreqs & repo.requirements))) |
513d68a90398
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diff
changeset
|
770 |
513d68a90398
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parents:
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diff
changeset
|
771 if repo.requirements - newreqs: |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
772 ui.write(_(' removed: %s\n') % |
513d68a90398
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parents:
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diff
changeset
|
773 _(', ').join(sorted(repo.requirements - newreqs))) |
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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parents:
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diff
changeset
|
775 if newreqs - repo.requirements: |
513d68a90398
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
776 ui.write(_(' added: %s\n') % |
513d68a90398
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parents:
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diff
changeset
|
777 _(', ').join(sorted(newreqs - repo.requirements))) |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
778 |
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parents:
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diff
changeset
|
779 ui.write('\n') |
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diff
changeset
|
780 |
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diff
changeset
|
781 def printupgradeactions(): |
31903
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31902
diff
changeset
|
782 for a in actions: |
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diff
changeset
|
783 ui.write('%s\n %s\n\n' % (a.name, a.upgrademessage)) |
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diff
changeset
|
784 |
30775
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parents:
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diff
changeset
|
785 if not run: |
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diff
changeset
|
786 fromconfig = [] |
31904
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upgrade: simplify the "origin" dispatch in dry run
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diff
changeset
|
787 onlydefault = [] |
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Gregory Szorc <gregory.szorc@gmail.com>
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|
788 |
31901
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upgrade: simplify some of the initial dispatch for dry run
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parents:
31900
diff
changeset
|
789 for d in deficiencies: |
32031
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parents:
32030
diff
changeset
|
790 if d.fromconfig(repo): |
31901
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parents:
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changeset
|
791 fromconfig.append(d) |
32031
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diff
changeset
|
792 elif d.default: |
31904
3c77f03f16b3
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diff
changeset
|
793 onlydefault.append(d) |
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diff
changeset
|
794 |
31904
3c77f03f16b3
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parents:
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diff
changeset
|
795 if fromconfig or onlydefault: |
30776
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|
796 |
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diff
changeset
|
797 if fromconfig: |
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diff
changeset
|
798 ui.write(_('repository lacks features recommended by ' |
3997edc4a86d
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changeset
|
799 'current config options:\n\n')) |
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diff
changeset
|
800 for i in fromconfig: |
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changeset
|
801 ui.write('%s\n %s\n\n' % (i.name, i.description)) |
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diff
changeset
|
802 |
3997edc4a86d
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parents:
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diff
changeset
|
803 if onlydefault: |
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parents:
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diff
changeset
|
804 ui.write(_('repository lacks features used by the default ' |
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repair: determine what upgrade will do
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diff
changeset
|
805 'config options:\n\n')) |
3997edc4a86d
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
806 for i in onlydefault: |
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parents:
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diff
changeset
|
807 ui.write('%s\n %s\n\n' % (i.name, i.description)) |
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808 |
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809 ui.write('\n') |
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810 else: |
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811 ui.write(_('(no feature deficiencies found in existing ' |
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812 'repository)\n')) |
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813 |
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814 ui.write(_('performing an upgrade with "--run" will make the following ' |
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815 'changes:\n\n')) |
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816 |
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817 printrequirements() |
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818 printupgradeactions() |
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819 |
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820 unusedoptimize = [i for i in alloptimizations if i not in actions] |
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821 |
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822 if unusedoptimize: |
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823 ui.write(_('additional optimizations are available by specifying ' |
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824 '"--optimize <name>":\n\n')) |
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825 for i in unusedoptimize: |
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826 ui.write(_('%s\n %s\n\n') % (i.name, i.description)) |
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827 return |
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828 |
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829 # Else we're in the run=true case. |
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830 ui.write(_('upgrade will perform the following actions:\n\n')) |
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831 printrequirements() |
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832 printupgradeactions() |
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833 |
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834 upgradeactions = [a.name for a in actions] |
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835 |
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836 ui.write(_('beginning upgrade...\n')) |
33438 | 837 with repo.wlock(), repo.lock(): |
838 ui.write(_('repository locked and read-only\n')) | |
839 # Our strategy for upgrading the repository is to create a new, | |
840 # temporary repository, write data to it, then do a swap of the | |
841 # data. There are less heavyweight ways to do this, but it is easier | |
842 # to create a new repo object than to instantiate all the components | |
843 # (like the store) separately. | |
844 tmppath = tempfile.mkdtemp(prefix='upgrade.', dir=repo.path) | |
845 backuppath = None | |
846 try: | |
847 ui.write(_('creating temporary repository to stage migrated ' | |
848 'data: %s\n') % tmppath) | |
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849 |
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850 # clone ui without using ui.copy because repo.ui is protected |
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851 repoui = repo.ui.__class__(repo.ui) |
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852 dstrepo = hg.repository(repoui, path=tmppath, create=True) |
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853 |
33438 | 854 with dstrepo.wlock(), dstrepo.lock(): |
855 backuppath = _upgraderepo(ui, repo, dstrepo, newreqs, | |
856 upgradeactions) | |
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857 |
33438 | 858 finally: |
859 ui.write(_('removing temporary repository %s\n') % tmppath) | |
860 repo.vfs.rmtree(tmppath, forcibly=True) | |
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861 |
33438 | 862 if backuppath: |
863 ui.warn(_('copy of old repository backed up at %s\n') % | |
864 backuppath) | |
865 ui.warn(_('the old repository will not be deleted; remove ' | |
866 'it to free up disk space once the upgraded ' | |
867 'repository is verified\n')) |