Mercurial > hg
annotate mercurial/upgrade.py @ 35816:f6ca1e11d8b4 stable
revset: evaluate filesets against each revision for 'file()' (issue5778)
After f2aeff8a87b6, the fileset was evaluated to a set of files against the
working directory, and then those files were applied against each revision. The
result was nonsense. For example, `hg log -r 'file("set:exec()")'` on the
Mercurial repo listed revision 0 because it has the `hg` script, which is
currently +x. But that bit wasn't applied until revision 280 (which
'contains()' properly indicates).
This technique was borrowed from checkstatus(), which services adds(),
modifies(), and removes(), so it seems safe enough. The 'r:' case is explicitly
assigned to wdirrev, freeing up rev=None to mean "re-evaluate at each revision".
The distinction is important to avoid behavior changes with `hg log set:...`
(test-largefiles-misc.t and test-fileset-generated.t drop current log output
without this). I'm not sure what the right behavior for that is (1fd352aa08fc
explicitly enabled this behavior for graphlog), but the day before the release
isn't the time to experiment.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sun, 28 Jan 2018 14:08:59 -0500 |
parents | 29248ea26b29 |
children | 0147a4730420 |
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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')) |