Mercurial > hg
annotate mercurial/phases.py @ 46858:85e3a630cad9
revlog: move the details of revlog "v2" index inside revlog.utils.constants
the revlog module is quite large and this kind of format information would handy
for other module. So let us start to gather this information about the format in
a more appropriate place.
We update various reference to this information to use the new "source of truth"
in the process.
Differential Revision: https://phab.mercurial-scm.org/D10305
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 05 Apr 2021 12:21:12 +0200 |
parents | 77e129be10de |
children | d55b71393907 |
rev | line source |
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1 """ Mercurial phases support code |
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2 |
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3 --- |
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4 |
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5 Copyright 2011 Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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6 Logilab SA <contact@logilab.fr> |
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7 Augie Fackler <durin42@gmail.com> |
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8 |
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9 This software may be used and distributed according to the terms |
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10 of the GNU General Public License version 2 or any later version. |
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11 |
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12 --- |
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13 |
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14 This module implements most phase logic in mercurial. |
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15 |
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16 |
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17 Basic Concept |
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18 ============= |
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19 |
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20 A 'changeset phase' is an indicator that tells us how a changeset is |
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21 manipulated and communicated. The details of each phase is described |
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22 below, here we describe the properties they have in common. |
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23 |
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24 Like bookmarks, phases are not stored in history and thus are not |
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25 permanent and leave no audit trail. |
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26 |
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27 First, no changeset can be in two phases at once. Phases are ordered, |
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28 so they can be considered from lowest to highest. The default, lowest |
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29 phase is 'public' - this is the normal phase of existing changesets. A |
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30 child changeset can not be in a lower phase than its parents. |
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31 |
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32 These phases share a hierarchy of traits: |
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33 |
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34 immutable shared |
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35 public: X X |
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36 draft: X |
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37 secret: |
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38 |
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39 Local commits are draft by default. |
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40 |
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41 Phase Movement and Exchange |
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42 =========================== |
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43 |
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44 Phase data is exchanged by pushkey on pull and push. Some servers have |
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45 a publish option set, we call such a server a "publishing server". |
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46 Pushing a draft changeset to a publishing server changes the phase to |
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47 public. |
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48 |
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49 A small list of fact/rules define the exchange of phase: |
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50 |
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51 * old client never changes server states |
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52 * pull never changes server states |
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53 * publish and old server changesets are seen as public by client |
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54 * any secret changeset seen in another repository is lowered to at |
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55 least draft |
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56 |
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57 Here is the final table summing up the 49 possible use cases of phase |
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58 exchange: |
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59 |
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60 server |
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61 old publish non-publish |
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62 N X N D P N D P |
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63 old client |
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64 pull |
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65 N - X/X - X/D X/P - X/D X/P |
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66 X - X/X - X/D X/P - X/D X/P |
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67 push |
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68 X X/X X/X X/P X/P X/P X/D X/D X/P |
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69 new client |
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70 pull |
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71 N - P/X - P/D P/P - D/D P/P |
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72 D - P/X - P/D P/P - D/D P/P |
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73 P - P/X - P/D P/P - P/D P/P |
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74 push |
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75 D P/X P/X P/P P/P P/P D/D D/D P/P |
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76 P P/X P/X P/P P/P P/P P/P P/P P/P |
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77 |
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78 Legend: |
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79 |
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80 A/B = final state on client / state on server |
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81 |
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82 * N = new/not present, |
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83 * P = public, |
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84 * D = draft, |
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85 * X = not tracked (i.e., the old client or server has no internal |
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86 way of recording the phase.) |
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87 |
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88 passive = only pushes |
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89 |
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90 |
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91 A cell here can be read like this: |
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92 |
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93 "When a new client pushes a draft changeset (D) to a publishing |
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94 server where it's not present (N), it's marked public on both |
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95 sides (P/P)." |
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96 |
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97 Note: old client behave as a publishing server with draft only content |
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98 - other people see it as public |
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99 - content is pushed as draft |
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100 |
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101 """ |
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102 |
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103 from __future__ import absolute_import |
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104 |
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105 import errno |
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106 import struct |
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107 |
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108 from .i18n import _ |
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109 from .node import ( |
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110 bin, |
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111 hex, |
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112 nullid, |
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113 nullrev, |
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114 short, |
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115 wdirrev, |
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116 ) |
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117 from .pycompat import ( |
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118 getattr, |
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119 setattr, |
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120 ) |
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121 from . import ( |
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122 error, |
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123 pycompat, |
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124 requirements, |
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125 smartset, |
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126 txnutil, |
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127 util, |
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128 ) |
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129 |
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130 if pycompat.TYPE_CHECKING: |
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131 from typing import ( |
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132 Any, |
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133 Callable, |
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134 Dict, |
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135 Iterable, |
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136 List, |
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137 Optional, |
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138 Set, |
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139 Tuple, |
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140 ) |
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141 from . import ( |
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142 localrepo, |
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143 ui as uimod, |
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144 ) |
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145 |
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146 Phaseroots = Dict[int, Set[bytes]] |
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147 Phasedefaults = List[ |
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148 Callable[[localrepo.localrepository, Phaseroots], Phaseroots] |
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149 ] |
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150 |
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151 |
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152 _fphasesentry = struct.Struct(b'>i20s') |
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153 |
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154 # record phase index |
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155 public, draft, secret = range(3) # type: int |
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156 archived = 32 # non-continuous for compatibility |
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157 internal = 96 # non-continuous for compatibility |
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158 allphases = (public, draft, secret, archived, internal) |
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159 trackedphases = (draft, secret, archived, internal) |
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160 # record phase names |
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161 cmdphasenames = [b'public', b'draft', b'secret'] # known to `hg phase` command |
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162 phasenames = dict(enumerate(cmdphasenames)) |
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163 phasenames[archived] = b'archived' |
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164 phasenames[internal] = b'internal' |
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165 # map phase name to phase number |
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166 phasenumber = {name: phase for phase, name in phasenames.items()} |
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167 # like phasenumber, but also include maps for the numeric and binary |
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168 # phase number to the phase number |
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169 phasenumber2 = phasenumber.copy() |
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170 phasenumber2.update({phase: phase for phase in phasenames}) |
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171 phasenumber2.update({b'%i' % phase: phase for phase in phasenames}) |
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172 # record phase property |
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173 mutablephases = (draft, secret, archived, internal) |
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174 remotehiddenphases = (secret, archived, internal) |
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175 localhiddenphases = (internal, archived) |
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176 |
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177 |
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178 def supportinternal(repo): |
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179 # type: (localrepo.localrepository) -> bool |
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180 """True if the internal phase can be used on a repository""" |
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181 return requirements.INTERNAL_PHASE_REQUIREMENT in repo.requirements |
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182 |
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183 |
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184 def _readroots(repo, phasedefaults=None): |
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185 # type: (localrepo.localrepository, Optional[Phasedefaults]) -> Tuple[Phaseroots, bool] |
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186 """Read phase roots from disk |
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187 |
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188 phasedefaults is a list of fn(repo, roots) callable, which are |
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189 executed if the phase roots file does not exist. When phases are |
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190 being initialized on an existing repository, this could be used to |
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191 set selected changesets phase to something else than public. |
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192 |
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193 Return (roots, dirty) where dirty is true if roots differ from |
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194 what is being stored. |
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195 """ |
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196 repo = repo.unfiltered() |
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197 dirty = False |
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198 roots = {i: set() for i in allphases} |
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199 try: |
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200 f, pending = txnutil.trypending(repo.root, repo.svfs, b'phaseroots') |
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201 try: |
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202 for line in f: |
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203 phase, nh = line.split() |
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204 roots[int(phase)].add(bin(nh)) |
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205 finally: |
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206 f.close() |
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207 except IOError as inst: |
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208 if inst.errno != errno.ENOENT: |
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209 raise |
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210 if phasedefaults: |
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211 for f in phasedefaults: |
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212 roots = f(repo, roots) |
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213 dirty = True |
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214 return roots, dirty |
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215 |
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216 |
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217 def binaryencode(phasemapping): |
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218 # type: (Dict[int, List[bytes]]) -> bytes |
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219 """encode a 'phase -> nodes' mapping into a binary stream |
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220 |
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221 The revision lists are encoded as (phase, root) pairs. |
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222 """ |
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223 binarydata = [] |
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224 for phase, nodes in pycompat.iteritems(phasemapping): |
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225 for head in nodes: |
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226 binarydata.append(_fphasesentry.pack(phase, head)) |
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227 return b''.join(binarydata) |
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228 |
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229 |
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230 def binarydecode(stream): |
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231 # type: (...) -> Dict[int, List[bytes]] |
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232 """decode a binary stream into a 'phase -> nodes' mapping |
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233 |
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234 The (phase, root) pairs are turned back into a dictionary with |
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235 the phase as index and the aggregated roots of that phase as value.""" |
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236 headsbyphase = {i: [] for i in allphases} |
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237 entrysize = _fphasesentry.size |
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238 while True: |
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239 entry = stream.read(entrysize) |
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240 if len(entry) < entrysize: |
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241 if entry: |
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242 raise error.Abort(_(b'bad phase-heads stream')) |
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243 break |
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244 phase, node = _fphasesentry.unpack(entry) |
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245 headsbyphase[phase].append(node) |
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246 return headsbyphase |
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247 |
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248 |
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249 def _sortedrange_insert(data, idx, rev, t): |
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250 merge_before = False |
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251 if idx: |
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252 r1, t1 = data[idx - 1] |
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253 merge_before = r1[-1] + 1 == rev and t1 == t |
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254 merge_after = False |
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255 if idx < len(data): |
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256 r2, t2 = data[idx] |
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257 merge_after = r2[0] == rev + 1 and t2 == t |
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258 |
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259 if merge_before and merge_after: |
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260 data[idx - 1] = (pycompat.xrange(r1[0], r2[-1] + 1), t) |
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261 data.pop(idx) |
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262 elif merge_before: |
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263 data[idx - 1] = (pycompat.xrange(r1[0], rev + 1), t) |
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264 elif merge_after: |
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265 data[idx] = (pycompat.xrange(rev, r2[-1] + 1), t) |
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266 else: |
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267 data.insert(idx, (pycompat.xrange(rev, rev + 1), t)) |
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268 |
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269 |
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270 def _sortedrange_split(data, idx, rev, t): |
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271 r1, t1 = data[idx] |
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272 if t == t1: |
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273 return |
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274 t = (t1[0], t[1]) |
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275 if len(r1) == 1: |
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276 data.pop(idx) |
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277 _sortedrange_insert(data, idx, rev, t) |
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278 elif r1[0] == rev: |
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279 data[idx] = (pycompat.xrange(rev + 1, r1[-1] + 1), t1) |
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280 _sortedrange_insert(data, idx, rev, t) |
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281 elif r1[-1] == rev: |
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282 data[idx] = (pycompat.xrange(r1[0], rev), t1) |
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283 _sortedrange_insert(data, idx + 1, rev, t) |
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284 else: |
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285 data[idx : idx + 1] = [ |
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286 (pycompat.xrange(r1[0], rev), t1), |
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287 (pycompat.xrange(rev, rev + 1), t), |
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288 (pycompat.xrange(rev + 1, r1[-1] + 1), t1), |
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289 ] |
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290 |
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291 |
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292 def _trackphasechange(data, rev, old, new): |
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293 """add a phase move to the <data> list of ranges |
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294 |
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295 If data is None, nothing happens. |
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296 """ |
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297 if data is None: |
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298 return |
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299 |
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300 # If data is empty, create a one-revision range and done |
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301 if not data: |
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302 data.insert(0, (pycompat.xrange(rev, rev + 1), (old, new))) |
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303 return |
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304 |
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305 low = 0 |
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306 high = len(data) |
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307 t = (old, new) |
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308 while low < high: |
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309 mid = (low + high) // 2 |
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310 revs = data[mid][0] |
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311 revs_low = revs[0] |
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312 revs_high = revs[-1] |
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313 |
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314 if rev >= revs_low and rev <= revs_high: |
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315 _sortedrange_split(data, mid, rev, t) |
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316 return |
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317 |
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318 if revs_low == rev + 1: |
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319 if mid and data[mid - 1][0][-1] == rev: |
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320 _sortedrange_split(data, mid - 1, rev, t) |
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321 else: |
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322 _sortedrange_insert(data, mid, rev, t) |
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323 return |
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324 |
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325 if revs_high == rev - 1: |
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326 if mid + 1 < len(data) and data[mid + 1][0][0] == rev: |
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327 _sortedrange_split(data, mid + 1, rev, t) |
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328 else: |
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329 _sortedrange_insert(data, mid + 1, rev, t) |
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330 return |
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331 |
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332 if revs_low > rev: |
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333 high = mid |
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334 else: |
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335 low = mid + 1 |
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336 |
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337 if low == len(data): |
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338 data.append((pycompat.xrange(rev, rev + 1), t)) |
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339 return |
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340 |
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341 r1, t1 = data[low] |
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342 if r1[0] > rev: |
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343 data.insert(low, (pycompat.xrange(rev, rev + 1), t)) |
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344 else: |
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345 data.insert(low + 1, (pycompat.xrange(rev, rev + 1), t)) |
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346 |
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347 |
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348 class phasecache(object): |
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349 def __init__(self, repo, phasedefaults, _load=True): |
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350 # type: (localrepo.localrepository, Optional[Phasedefaults], bool) -> None |
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351 if _load: |
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352 # Cheap trick to allow shallow-copy without copy module |
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353 self.phaseroots, self.dirty = _readroots(repo, phasedefaults) |
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354 self._loadedrevslen = 0 |
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355 self._phasesets = None |
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356 self.filterunknown(repo) |
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357 self.opener = repo.svfs |
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358 |
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359 def hasnonpublicphases(self, repo): |
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360 # type: (localrepo.localrepository) -> bool |
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361 """detect if there are revisions with non-public phase""" |
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362 repo = repo.unfiltered() |
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363 cl = repo.changelog |
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364 if len(cl) >= self._loadedrevslen: |
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365 self.invalidate() |
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366 self.loadphaserevs(repo) |
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367 return any( |
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368 revs |
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369 for phase, revs in pycompat.iteritems(self.phaseroots) |
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370 if phase != public |
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371 ) |
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372 |
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373 def nonpublicphaseroots(self, repo): |
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374 # type: (localrepo.localrepository) -> Set[bytes] |
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375 """returns the roots of all non-public phases |
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376 |
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377 The roots are not minimized, so if the secret revisions are |
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378 descendants of draft revisions, their roots will still be present. |
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379 """ |
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380 repo = repo.unfiltered() |
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381 cl = repo.changelog |
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382 if len(cl) >= self._loadedrevslen: |
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383 self.invalidate() |
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384 self.loadphaserevs(repo) |
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385 return set().union( |
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386 *[ |
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387 revs |
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388 for phase, revs in pycompat.iteritems(self.phaseroots) |
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389 if phase != public |
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390 ] |
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391 ) |
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392 |
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393 def getrevset(self, repo, phases, subset=None): |
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394 # type: (localrepo.localrepository, Iterable[int], Optional[Any]) -> Any |
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395 # TODO: finish typing this |
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396 """return a smartset for the given phases""" |
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397 self.loadphaserevs(repo) # ensure phase's sets are loaded |
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398 phases = set(phases) |
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399 publicphase = public in phases |
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400 |
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401 if publicphase: |
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402 # In this case, phases keeps all the *other* phases. |
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403 phases = set(allphases).difference(phases) |
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404 if not phases: |
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405 return smartset.fullreposet(repo) |
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406 |
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407 # fast path: _phasesets contains the interesting sets, |
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408 # might only need a union and post-filtering. |
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409 revsneedscopy = False |
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410 if len(phases) == 1: |
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411 [p] = phases |
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412 revs = self._phasesets[p] |
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413 revsneedscopy = True # Don't modify _phasesets |
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414 else: |
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415 # revs has the revisions in all *other* phases. |
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416 revs = set.union(*[self._phasesets[p] for p in phases]) |
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417 |
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418 def _addwdir(wdirsubset, wdirrevs): |
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419 if wdirrev in wdirsubset and repo[None].phase() in phases: |
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420 if revsneedscopy: |
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421 wdirrevs = wdirrevs.copy() |
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422 # The working dir would never be in the # cache, but it was in |
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423 # the subset being filtered for its phase (or filtered out, |
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424 # depending on publicphase), so add it to the output to be |
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425 # included (or filtered out). |
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426 wdirrevs.add(wdirrev) |
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427 return wdirrevs |
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428 |
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429 if not publicphase: |
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430 if repo.changelog.filteredrevs: |
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431 revs = revs - repo.changelog.filteredrevs |
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432 |
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433 if subset is None: |
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434 return smartset.baseset(revs) |
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435 else: |
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436 revs = _addwdir(subset, revs) |
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437 return subset & smartset.baseset(revs) |
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438 else: |
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439 if subset is None: |
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440 subset = smartset.fullreposet(repo) |
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441 |
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442 revs = _addwdir(subset, revs) |
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443 |
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444 if not revs: |
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445 return subset |
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446 return subset.filter(lambda r: r not in revs) |
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447 |
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448 def copy(self): |
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449 # Shallow copy meant to ensure isolation in |
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phases: make advance/retractboundary() atomic
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|
450 # advance/retractboundary(), nothing more. |
23631
b8260abfeb7d
bundlerepo: implement safe phasecache
Eric Sumner <ericsumner@fb.com>
parents:
23361
diff
changeset
|
451 ph = self.__class__(None, None, _load=False) |
45131
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phases: sparsify phaseroots and phasesets
Joerg Sonnenberger <joerg@bec.de>
parents:
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changeset
|
452 ph.phaseroots = self.phaseroots.copy() |
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|
453 ph.dirty = self.dirty |
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changeset
|
454 ph.opener = self.opener |
35441
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phases: rename _phasemaxrev to _loadedrevslen to clarify it isn't max value
Yuya Nishihara <yuya@tcha.org>
parents:
35330
diff
changeset
|
455 ph._loadedrevslen = self._loadedrevslen |
25592
dd2349ccfa66
phase: also copy phase's sets when copying phase cache
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25527
diff
changeset
|
456 ph._phasesets = self._phasesets |
16658
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changeset
|
457 return ph |
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diff
changeset
|
458 |
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changeset
|
459 def replace(self, phcache): |
25613
a13c18c14ade
phase: document the replace method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25611
diff
changeset
|
460 """replace all values in 'self' with content of phcache""" |
43076
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parents:
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changeset
|
461 for a in ( |
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changeset
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462 b'phaseroots', |
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|
463 b'dirty', |
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changeset
|
464 b'opener', |
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|
465 b'_loadedrevslen', |
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changeset
|
466 b'_phasesets', |
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changeset
|
467 ): |
16658
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|
468 setattr(self, a, getattr(phcache, a)) |
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changeset
|
469 |
24599
2a73829ebe17
phases: make two functions private for phase computation
Laurent Charignon <lcharignon@fb.com>
parents:
24520
diff
changeset
|
470 def _getphaserevsnative(self, repo): |
24444
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phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
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changeset
|
471 repo = repo.unfiltered() |
45131
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Joerg Sonnenberger <joerg@bec.de>
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|
472 return repo.changelog.computephases(self.phaseroots) |
24444
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phase: default to C implementation for phase computation
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changeset
|
473 |
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|
474 def _computephaserevspure(self, repo): |
24519
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phases: move pure phase computation in a function
Laurent Charignon <lcharignon@fb.com>
parents:
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diff
changeset
|
475 repo = repo.unfiltered() |
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phases: drop the list with phase of each rev, always comput phase sets
Joerg Sonnenberger <joerg@bec.de>
parents:
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changeset
|
476 cl = repo.changelog |
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|
477 self._phasesets = {phase: set() for phase in allphases} |
39271
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phase: use `trackedphases` in `_getphaserevsnative`
Boris Feld <boris.feld@octobus.net>
parents:
39262
diff
changeset
|
478 lowerroots = set() |
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phase: use `trackedphases` in `_getphaserevsnative`
Boris Feld <boris.feld@octobus.net>
parents:
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diff
changeset
|
479 for phase in reversed(trackedphases): |
fd7376fa60e7
phase: use `trackedphases` in `_getphaserevsnative`
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|
480 roots = pycompat.maplist(cl.rev, self.phaseroots[phase]) |
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parents:
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changeset
|
481 if roots: |
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parents:
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changeset
|
482 ps = set(cl.descendants(roots)) |
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parents:
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changeset
|
483 for root in roots: |
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changeset
|
484 ps.add(root) |
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parents:
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diff
changeset
|
485 ps.difference_update(lowerroots) |
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parents:
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diff
changeset
|
486 lowerroots.update(ps) |
fd7376fa60e7
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parents:
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diff
changeset
|
487 self._phasesets[phase] = ps |
35441
98cc121099fe
phases: rename _phasemaxrev to _loadedrevslen to clarify it isn't max value
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
488 self._loadedrevslen = len(cl) |
24519
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phases: move pure phase computation in a function
Laurent Charignon <lcharignon@fb.com>
parents:
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diff
changeset
|
489 |
25611
d89045a66e01
phase: rename getphaserevs to loadphaserevs
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
490 def loadphaserevs(self, repo): |
46644
77e129be10de
typing: add some type annotations to mercurial/phases.py
Matt Harbison <matt_harbison@yahoo.com>
parents:
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changeset
|
491 # type: (localrepo.localrepository) -> None |
25611
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phase: rename getphaserevs to loadphaserevs
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changeset
|
492 """ensure phase information is loaded in the object""" |
35309
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parents:
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changeset
|
493 if self._phasesets is None: |
24444
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phase: default to C implementation for phase computation
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parents:
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diff
changeset
|
494 try: |
31152
b7cef987356d
phases: remove experimental.nativephaseskillswitch
Jun Wu <quark@fb.com>
parents:
31053
diff
changeset
|
495 res = self._getphaserevsnative(repo) |
35441
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|
496 self._loadedrevslen, self._phasesets = res |
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|
497 except AttributeError: |
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diff
changeset
|
498 self._computephaserevspure(repo) |
22894
c40be72dc177
phases: move root phase assignment to it's own function
Durham Goode <durham@fb.com>
parents:
22893
diff
changeset
|
499 |
22893
9672f0b2cdd9
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diff
changeset
|
500 def invalidate(self): |
35442
56745e58df07
phases: initialize number of loaded revisions to 0
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parents:
35441
diff
changeset
|
501 self._loadedrevslen = 0 |
25593
9e551f155810
phase: invalidate the phase's set cache alongside the revs
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diff
changeset
|
502 self._phasesets = None |
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|
503 |
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changeset
|
504 def phase(self, repo, rev): |
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|
505 # type: (localrepo.localrepository, int) -> int |
35309
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changeset
|
506 # We need a repo argument here to be able to build _phasesets |
16657
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changeset
|
507 # if necessary. The repository instance is not stored in |
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changeset
|
508 # phasecache to avoid reference cycles. The changelog instance |
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changeset
|
509 # is not stored because it is a filecache() property and can |
b6081c2c4647
phases: introduce phasecache
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diff
changeset
|
510 # be replaced without us being notified. |
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Patrick Mezard <patrick@mezard.eu>
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diff
changeset
|
511 if rev == nullrev: |
b6081c2c4647
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Patrick Mezard <patrick@mezard.eu>
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16626
diff
changeset
|
512 return public |
19984
7d5e7799a29f
rebase: fix rebase aborts when 'tip-1' is public (issue4082)
Durham Goode <durham@fb.com>
parents:
19951
diff
changeset
|
513 if rev < nullrev: |
43077
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changeset
|
514 raise ValueError(_(b'cannot lookup negative revision')) |
35441
98cc121099fe
phases: rename _phasemaxrev to _loadedrevslen to clarify it isn't max value
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35330
diff
changeset
|
515 if rev >= self._loadedrevslen: |
22893
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Durham Goode <durham@fb.com>
parents:
22080
diff
changeset
|
516 self.invalidate() |
25611
d89045a66e01
phase: rename getphaserevs to loadphaserevs
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25594
diff
changeset
|
517 self.loadphaserevs(repo) |
35309
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changeset
|
518 for phase in trackedphases: |
d13526333835
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Joerg Sonnenberger <joerg@bec.de>
parents:
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diff
changeset
|
519 if rev in self._phasesets[phase]: |
d13526333835
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Joerg Sonnenberger <joerg@bec.de>
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diff
changeset
|
520 return phase |
d13526333835
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Joerg Sonnenberger <joerg@bec.de>
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diff
changeset
|
521 return public |
16657
b6081c2c4647
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16626
diff
changeset
|
522 |
b6081c2c4647
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16626
diff
changeset
|
523 def write(self): |
b6081c2c4647
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16626
diff
changeset
|
524 if not self.dirty: |
b6081c2c4647
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Patrick Mezard <patrick@mezard.eu>
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diff
changeset
|
525 return |
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diff
changeset
|
526 f = self.opener(b'phaseroots', b'w', atomictemp=True, checkambig=True) |
16657
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diff
changeset
|
527 try: |
22079
5dcc58649b1a
phase: extract the phaseroots serialization in a dedicated method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22070
diff
changeset
|
528 self._write(f) |
16657
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Patrick Mezard <patrick@mezard.eu>
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diff
changeset
|
529 finally: |
b6081c2c4647
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Patrick Mezard <patrick@mezard.eu>
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16626
diff
changeset
|
530 f.close() |
22079
5dcc58649b1a
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22070
diff
changeset
|
531 |
5dcc58649b1a
phase: extract the phaseroots serialization in a dedicated method
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22070
diff
changeset
|
532 def _write(self, fp): |
45131
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phases: sparsify phaseroots and phasesets
Joerg Sonnenberger <joerg@bec.de>
parents:
45117
diff
changeset
|
533 for phase, roots in pycompat.iteritems(self.phaseroots): |
36452
ab81e5a8fba5
phases: write phaseroots deterministically
Gregory Szorc <gregory.szorc@gmail.com>
parents:
35442
diff
changeset
|
534 for h in sorted(roots): |
43077
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diff
changeset
|
535 fp.write(b'%i %s\n' % (phase, hex(h))) |
16657
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Patrick Mezard <patrick@mezard.eu>
parents:
16626
diff
changeset
|
536 self.dirty = False |
15454
5a7dde5adec8
phases: add a moveboundary function to move phases boundaries
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15419
diff
changeset
|
537 |
22080
37f46575d9c2
phase: attach phase to the transaction instead of the lock
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22079
diff
changeset
|
538 def _updateroots(self, phase, newroots, tr): |
16658
6b3d31d04a69
phases: make advance/retractboundary() atomic
Patrick Mezard <patrick@mezard.eu>
parents:
16657
diff
changeset
|
539 self.phaseroots[phase] = newroots |
22893
9672f0b2cdd9
phases: add invalidate function
Durham Goode <durham@fb.com>
parents:
22080
diff
changeset
|
540 self.invalidate() |
16658
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Patrick Mezard <patrick@mezard.eu>
parents:
16657
diff
changeset
|
541 self.dirty = True |
6b3d31d04a69
phases: make advance/retractboundary() atomic
Patrick Mezard <patrick@mezard.eu>
parents:
16657
diff
changeset
|
542 |
43077
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
543 tr.addfilegenerator(b'phase', (b'phaseroots',), self._write) |
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
544 tr.hookargs[b'phases_moved'] = b'1' |
22080
37f46575d9c2
phase: attach phase to the transaction instead of the lock
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22079
diff
changeset
|
545 |
45790
5d65e04b6a80
phases: convert registernew users to use revision sets
Joerg Sonnenberger <joerg@bec.de>
parents:
45789
diff
changeset
|
546 def registernew(self, repo, tr, targetphase, revs): |
33453
f6b7617a85bb
phases: add a 'registernew' method to set new phases
Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
547 repo = repo.unfiltered() |
45790
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Joerg Sonnenberger <joerg@bec.de>
parents:
45789
diff
changeset
|
548 self._retractboundary(repo, tr, targetphase, [], revs=revs) |
43077
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
549 if tr is not None and b'phases' in tr.changes: |
687b865b95ad
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Augie Fackler <augie@google.com>
parents:
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diff
changeset
|
550 phasetracking = tr.changes[b'phases'] |
33453
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phases: add a 'registernew' method to set new phases
Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
551 phase = self.phase |
45790
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parents:
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diff
changeset
|
552 for rev in sorted(revs): |
33453
f6b7617a85bb
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Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
553 revphase = phase(repo, rev) |
f6b7617a85bb
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Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
554 _trackphasechange(phasetracking, rev, None, revphase) |
f6b7617a85bb
phases: add a 'registernew' method to set new phases
Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
555 repo.invalidatevolatilesets() |
f6b7617a85bb
phases: add a 'registernew' method to set new phases
Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
556 |
45789
09735cde6275
phases: allow registration and boundary advancement with revision sets
Joerg Sonnenberger <joerg@bec.de>
parents:
45550
diff
changeset
|
557 def advanceboundary( |
09735cde6275
phases: allow registration and boundary advancement with revision sets
Joerg Sonnenberger <joerg@bec.de>
parents:
45550
diff
changeset
|
558 self, repo, tr, targetphase, nodes, revs=None, dryrun=None |
09735cde6275
phases: allow registration and boundary advancement with revision sets
Joerg Sonnenberger <joerg@bec.de>
parents:
45550
diff
changeset
|
559 ): |
33450
d017f1d37378
phases: extract the intermediate set of affected revs
Boris Feld <boris.feld@octobus.net>
parents:
33449
diff
changeset
|
560 """Set all 'nodes' to phase 'targetphase' |
d017f1d37378
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561 |
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562 Nodes with a phase lower than 'targetphase' are not affected. |
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563 |
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564 If dryrun is True, no actions will be performed |
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565 |
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566 Returns a set of revs whose phase is changed or should be changed |
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567 """ |
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568 # Be careful to preserve shallow-copied values: do not update |
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569 # phaseroots values, replace them. |
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570 if revs is None: |
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571 revs = [] |
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572 if tr is None: |
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573 phasetracking = None |
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574 else: |
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575 phasetracking = tr.changes.get(b'phases') |
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576 |
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577 repo = repo.unfiltered() |
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578 revs = [repo[n].rev() for n in nodes] + [r for r in revs] |
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579 |
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580 changes = set() # set of revisions to be changed |
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581 delroots = [] # set of root deleted by this path |
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582 for phase in (phase for phase in allphases if phase > targetphase): |
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583 # filter nodes that are not in a compatible phase already |
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584 revs = [rev for rev in revs if self.phase(repo, rev) >= phase] |
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585 if not revs: |
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586 break # no roots to move anymore |
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587 |
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588 olds = self.phaseroots[phase] |
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589 |
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590 affected = repo.revs(b'%ln::%ld', olds, revs) |
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591 changes.update(affected) |
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592 if dryrun: |
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593 continue |
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594 for r in affected: |
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595 _trackphasechange( |
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596 phasetracking, r, self.phase(repo, r), targetphase |
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597 ) |
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598 |
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599 roots = { |
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600 ctx.node() |
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601 for ctx in repo.set(b'roots((%ln::) - %ld)', olds, affected) |
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602 } |
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603 if olds != roots: |
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604 self._updateroots(phase, roots, tr) |
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605 # some roots may need to be declared for lower phases |
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606 delroots.extend(olds - roots) |
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607 if not dryrun: |
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608 # declare deleted root in the target phase |
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609 if targetphase != 0: |
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610 self._retractboundary(repo, tr, targetphase, delroots) |
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611 repo.invalidatevolatilesets() |
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612 return changes |
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613 |
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614 def retractboundary(self, repo, tr, targetphase, nodes): |
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615 oldroots = { |
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616 phase: revs |
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617 for phase, revs in pycompat.iteritems(self.phaseroots) |
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618 if phase <= targetphase |
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619 } |
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620 if tr is None: |
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621 phasetracking = None |
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622 else: |
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623 phasetracking = tr.changes.get(b'phases') |
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624 repo = repo.unfiltered() |
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625 if ( |
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626 self._retractboundary(repo, tr, targetphase, nodes) |
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627 and phasetracking is not None |
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628 ): |
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629 |
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630 # find the affected revisions |
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631 new = self.phaseroots[targetphase] |
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632 old = oldroots[targetphase] |
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633 affected = set(repo.revs(b'(%ln::) - (%ln::)', new, old)) |
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634 |
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635 # find the phase of the affected revision |
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636 for phase in pycompat.xrange(targetphase, -1, -1): |
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637 if phase: |
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638 roots = oldroots.get(phase, []) |
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639 revs = set(repo.revs(b'%ln::%ld', roots, affected)) |
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640 affected -= revs |
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641 else: # public phase |
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642 revs = affected |
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643 for r in sorted(revs): |
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644 _trackphasechange(phasetracking, r, phase, targetphase) |
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645 repo.invalidatevolatilesets() |
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646 |
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647 def _retractboundary(self, repo, tr, targetphase, nodes, revs=None): |
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648 # Be careful to preserve shallow-copied values: do not update |
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649 # phaseroots values, replace them. |
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650 if revs is None: |
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651 revs = [] |
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652 if targetphase in (archived, internal) and not supportinternal(repo): |
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653 name = phasenames[targetphase] |
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654 msg = b'this repository does not support the %s phase' % name |
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655 raise error.ProgrammingError(msg) |
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656 |
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657 repo = repo.unfiltered() |
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658 torev = repo.changelog.rev |
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659 tonode = repo.changelog.node |
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660 currentroots = {torev(node) for node in self.phaseroots[targetphase]} |
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661 finalroots = oldroots = set(currentroots) |
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662 newroots = [torev(node) for node in nodes] + [r for r in revs] |
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663 newroots = [ |
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664 rev for rev in newroots if self.phase(repo, rev) < targetphase |
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665 ] |
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666 |
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667 if newroots: |
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668 if nullrev in newroots: |
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669 raise error.Abort(_(b'cannot change null revision phase')) |
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670 currentroots.update(newroots) |
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671 |
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672 # Only compute new roots for revs above the roots that are being |
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673 # retracted. |
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674 minnewroot = min(newroots) |
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675 aboveroots = [rev for rev in currentroots if rev >= minnewroot] |
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676 updatedroots = repo.revs(b'roots(%ld::)', aboveroots) |
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677 |
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678 finalroots = {rev for rev in currentroots if rev < minnewroot} |
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679 finalroots.update(updatedroots) |
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680 if finalroots != oldroots: |
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681 self._updateroots( |
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682 targetphase, {tonode(rev) for rev in finalroots}, tr |
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683 ) |
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684 return True |
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685 return False |
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686 |
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687 def filterunknown(self, repo): |
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688 # type: (localrepo.localrepository) -> None |
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689 """remove unknown nodes from the phase boundary |
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690 |
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691 Nothing is lost as unknown nodes only hold data for their descendants. |
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692 """ |
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|
693 filtered = False |
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694 has_node = repo.changelog.index.has_node # to filter unknown nodes |
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695 for phase, nodes in pycompat.iteritems(self.phaseroots): |
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696 missing = sorted(node for node in nodes if not has_node(node)) |
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697 if missing: |
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698 for mnode in missing: |
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699 repo.ui.debug( |
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700 b'removing unknown node %s from %i-phase boundary\n' |
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|
701 % (short(mnode), phase) |
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702 ) |
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703 nodes.symmetric_difference_update(missing) |
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704 filtered = True |
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705 if filtered: |
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|
706 self.dirty = True |
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|
707 # filterunknown is called by repo.destroyed, we may have no changes in |
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Joerg Sonnenberger <joerg@bec.de>
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diff
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|
708 # root but _phasesets contents is certainly invalid (or at least we |
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d51c4d85ec23
spelling: random spell checker fixes
Mads Kiilerich <madski@unity3d.com>
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709 # have not proper way to check that). related to issue 3858. |
18983
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diff
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|
710 # |
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|
711 # The other caller is __init__ that have no _phasesets initialized |
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|
712 # anyway. If this change we should consider adding a dedicated |
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parents:
18983
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713 # "destroyed" function to phasecache or a proper cache key mechanism |
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714 # (see branchmap one) |
22893
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phases: add invalidate function
Durham Goode <durham@fb.com>
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|
715 self.invalidate() |
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|
716 |
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|
717 |
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|
718 def advanceboundary(repo, tr, targetphase, nodes, revs=None, dryrun=None): |
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|
719 """Add nodes to a phase changing other nodes phases if necessary. |
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|
720 |
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parents:
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diff
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|
721 This function move boundary *forward* this means that all nodes |
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|
722 are set in the target phase or kept in a *lower* phase. |
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|
723 |
38218
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diff
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|
724 Simplify boundary to contains phase roots only. |
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|
725 |
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|
726 If dryrun is True, no actions will be performed |
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|
727 |
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|
728 Returns a set of revs whose phase is changed or should be changed |
36ba5dba372d
advanceboundary: add dryrun parameter
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diff
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|
729 """ |
45789
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|
730 if revs is None: |
09735cde6275
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|
731 revs = [] |
16658
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parents:
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diff
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|
732 phcache = repo._phasecache.copy() |
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|
733 changes = phcache.advanceboundary( |
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|
734 repo, tr, targetphase, nodes, revs=revs, dryrun=dryrun |
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|
735 ) |
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|
736 if not dryrun: |
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diff
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|
737 repo._phasecache.replace(phcache) |
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|
738 return changes |
15482
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|
739 |
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|
740 |
22070
c1ca47204590
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22069
diff
changeset
|
741 def retractboundary(repo, tr, targetphase, nodes): |
16725
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changeset
|
742 """Set nodes back to a phase changing other nodes phases if |
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Martin Geisler <martin@geisler.net>
parents:
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diff
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|
743 necessary. |
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diff
changeset
|
744 |
16725
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16724
diff
changeset
|
745 This function move boundary *backward* this means that all nodes |
b0fb4f57d076
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parents:
16724
diff
changeset
|
746 are set in the target phase or kept in a *higher* phase. |
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|
747 |
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diff
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|
748 Simplify boundary to contains phase roots only.""" |
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Patrick Mezard <patrick@mezard.eu>
parents:
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diff
changeset
|
749 phcache = repo._phasecache.copy() |
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Pierre-Yves David <pierre-yves.david@fb.com>
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22069
diff
changeset
|
750 phcache.retractboundary(repo, tr, targetphase, nodes) |
16658
6b3d31d04a69
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Patrick Mezard <patrick@mezard.eu>
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diff
changeset
|
751 repo._phasecache.replace(phcache) |
15648
79cc89de5be1
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diff
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|
752 |
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parents:
40580
diff
changeset
|
753 |
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Joerg Sonnenberger <joerg@bec.de>
parents:
45789
diff
changeset
|
754 def registernew(repo, tr, targetphase, revs): |
33453
f6b7617a85bb
phases: add a 'registernew' method to set new phases
Boris Feld <boris.feld@octobus.net>
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diff
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|
755 """register a new revision and its phase |
f6b7617a85bb
phases: add a 'registernew' method to set new phases
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diff
changeset
|
756 |
f6b7617a85bb
phases: add a 'registernew' method to set new phases
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parents:
33452
diff
changeset
|
757 Code adding revisions to the repository should use this function to |
f6b7617a85bb
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Boris Feld <boris.feld@octobus.net>
parents:
33452
diff
changeset
|
758 set new changeset in their target phase (or higher). |
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parents:
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|
759 """ |
f6b7617a85bb
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changeset
|
760 phcache = repo._phasecache.copy() |
45790
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diff
changeset
|
761 phcache.registernew(repo, tr, targetphase, revs) |
33453
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diff
changeset
|
762 repo._phasecache.replace(phcache) |
f6b7617a85bb
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|
763 |
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|
764 |
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79cc89de5be1
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diff
changeset
|
765 def listphases(repo): |
46644
77e129be10de
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parents:
45790
diff
changeset
|
766 # type: (localrepo.localrepository) -> Dict[bytes, bytes] |
16724
00535da82faf
phases: fix typos in docstrings
Martin Geisler <martin@geisler.net>
parents:
16659
diff
changeset
|
767 """List phases root for serialization over pushkey""" |
32000
511a62669f1b
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
31342
diff
changeset
|
768 # Use ordered dictionary so behavior is deterministic. |
511a62669f1b
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diff
changeset
|
769 keys = util.sortdict() |
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parents:
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|
770 value = b'%i' % draft |
34816
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diff
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|
771 cl = repo.unfiltered().changelog |
16657
b6081c2c4647
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Patrick Mezard <patrick@mezard.eu>
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diff
changeset
|
772 for root in repo._phasecache.phaseroots[draft]: |
34816
e2c42f751b06
phase: filter out non-draft item in "draft root"
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parents:
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diff
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|
773 if repo._phasecache.phase(repo, cl.rev(root)) <= draft: |
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parents:
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diff
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|
774 keys[hex(root)] = value |
15892
592b3d1742a1
phases: simplify phase exchange and movement over pushkey
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15821
diff
changeset
|
775 |
25624
f0745da75056
publishing: use new helper method
Matt Mackall <mpm@selenic.com>
parents:
25614
diff
changeset
|
776 if repo.publishing(): |
16725
b0fb4f57d076
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parents:
16724
diff
changeset
|
777 # Add an extra data to let remote know we are a publishing |
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Martin Geisler <martin@geisler.net>
parents:
16724
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|
778 # repo. Publishing repo can't just pretend they are old repo. |
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|
779 # When pushing to a publishing repo, the client still need to |
b0fb4f57d076
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|
780 # push phase boundary |
15648
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15482
diff
changeset
|
781 # |
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16724
diff
changeset
|
782 # Push do not only push changeset. It also push phase data. |
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16724
diff
changeset
|
783 # New phase data may apply to common changeset which won't be |
b0fb4f57d076
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Martin Geisler <martin@geisler.net>
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diff
changeset
|
784 # push (as they are common). Here is a very simple example: |
15648
79cc89de5be1
phases: add basic pushkey support
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15482
diff
changeset
|
785 # |
79cc89de5be1
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Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
15482
diff
changeset
|
786 # 1) repo A push changeset X as draft to repo B |
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787 # 2) repo B make changeset X public |
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788 # 3) repo B push to repo A. X is not pushed but the data that |
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789 # X as now public should |
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790 # |
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791 # The server can't handle it on it's own as it has no idea of |
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792 # client phase data. |
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793 keys[b'publishing'] = b'True' |
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794 return keys |
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795 |
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796 |
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797 def pushphase(repo, nhex, oldphasestr, newphasestr): |
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798 # type: (localrepo.localrepository, bytes, bytes, bytes) -> bool |
17535 | 799 """List phases root for serialization over pushkey""" |
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800 repo = repo.unfiltered() |
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801 with repo.lock(): |
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802 currentphase = repo[nhex].phase() |
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803 newphase = abs(int(newphasestr)) # let's avoid negative index surprise |
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804 oldphase = abs(int(oldphasestr)) # let's avoid negative index surprise |
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805 if currentphase == oldphase and newphase < oldphase: |
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806 with repo.transaction(b'pushkey-phase') as tr: |
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807 advanceboundary(repo, tr, newphase, [bin(nhex)]) |
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808 return True |
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809 elif currentphase == newphase: |
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810 # raced, but got correct result |
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811 return True |
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812 else: |
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813 return False |
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814 |
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815 |
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816 def subsetphaseheads(repo, subset): |
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817 """Finds the phase heads for a subset of a history |
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818 |
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819 Returns a list indexed by phase number where each item is a list of phase |
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820 head nodes. |
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821 """ |
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822 cl = repo.changelog |
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823 |
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824 headsbyphase = {i: [] for i in allphases} |
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825 # No need to keep track of secret phase; any heads in the subset that |
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826 # are not mentioned are implicitly secret. |
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827 for phase in allphases[:secret]: |
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828 revset = b"heads(%%ln & %s())" % phasenames[phase] |
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829 headsbyphase[phase] = [cl.node(r) for r in repo.revs(revset, subset)] |
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830 return headsbyphase |
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831 |
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832 |
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833 def updatephases(repo, trgetter, headsbyphase): |
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834 """Updates the repo with the given phase heads""" |
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835 # Now advance phase boundaries of all phases |
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836 # |
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837 # run the update (and fetch transaction) only if there are actually things |
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838 # to update. This avoid creating empty transaction during no-op operation. |
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839 |
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840 for phase in allphases: |
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841 revset = b'%ln - _phase(%s)' |
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842 heads = [c.node() for c in repo.set(revset, headsbyphase[phase], phase)] |
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843 if heads: |
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844 advanceboundary(repo, trgetter(), phase, heads) |
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845 |
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846 |
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847 def analyzeremotephases(repo, subset, roots): |
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848 """Compute phases heads and root in a subset of node from root dict |
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849 |
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850 * subset is heads of the subset |
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851 * roots is {<nodeid> => phase} mapping. key and value are string. |
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852 |
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853 Accept unknown element input |
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854 """ |
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855 repo = repo.unfiltered() |
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856 # build list from dictionary |
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857 draftroots = [] |
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858 has_node = repo.changelog.index.has_node # to filter unknown nodes |
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859 for nhex, phase in pycompat.iteritems(roots): |
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860 if nhex == b'publishing': # ignore data related to publish option |
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861 continue |
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862 node = bin(nhex) |
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863 phase = int(phase) |
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864 if phase == public: |
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865 if node != nullid: |
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866 repo.ui.warn( |
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867 _( |
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868 b'ignoring inconsistent public root' |
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869 b' from remote: %s\n' |
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870 ) |
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871 % nhex |
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872 ) |
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873 elif phase == draft: |
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874 if has_node(node): |
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875 draftroots.append(node) |
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876 else: |
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877 repo.ui.warn( |
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878 _(b'ignoring unexpected root from remote: %i %s\n') |
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879 % (phase, nhex) |
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880 ) |
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881 # compute heads |
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882 publicheads = newheads(repo, subset, draftroots) |
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883 return publicheads, draftroots |
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884 |
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885 |
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886 class remotephasessummary(object): |
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887 """summarize phase information on the remote side |
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888 |
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889 :publishing: True is the remote is publishing |
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890 :publicheads: list of remote public phase heads (nodes) |
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891 :draftheads: list of remote draft phase heads (nodes) |
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892 :draftroots: list of remote draft phase root (nodes) |
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893 """ |
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894 |
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895 def __init__(self, repo, remotesubset, remoteroots): |
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896 unfi = repo.unfiltered() |
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897 self._allremoteroots = remoteroots |
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898 |
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899 self.publishing = remoteroots.get(b'publishing', False) |
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900 |
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901 ana = analyzeremotephases(repo, remotesubset, remoteroots) |
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902 self.publicheads, self.draftroots = ana |
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903 # Get the list of all "heads" revs draft on remote |
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904 dheads = unfi.set(b'heads(%ln::%ln)', self.draftroots, remotesubset) |
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905 self.draftheads = [c.node() for c in dheads] |
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906 |
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907 |
15954
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908 def newheads(repo, heads, roots): |
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909 """compute new head of a subset minus another |
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910 |
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911 * `heads`: define the first subset |
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912 * `roots`: define the second we subtract from the first""" |
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913 # prevent an import cycle |
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914 # phases > dagop > patch > copies > scmutil > obsolete > obsutil > phases |
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915 from . import dagop |
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916 |
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917 repo = repo.unfiltered() |
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918 cl = repo.changelog |
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919 rev = cl.index.get_rev |
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920 if not roots: |
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921 return heads |
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922 if not heads or heads == [nullid]: |
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923 return [] |
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924 # The logic operated on revisions, convert arguments early for convenience |
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925 new_heads = {rev(n) for n in heads if n != nullid} |
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926 roots = [rev(n) for n in roots] |
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927 # compute the area we need to remove |
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928 affected_zone = repo.revs(b"(%ld::%ld)", roots, new_heads) |
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929 # heads in the area are no longer heads |
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930 new_heads.difference_update(affected_zone) |
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931 # revisions in the area have children outside of it, |
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932 # They might be new heads |
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933 candidates = repo.revs( |
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934 b"parents(%ld + (%ld and merge())) and not null", roots, affected_zone |
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935 ) |
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936 candidates -= affected_zone |
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|
937 if new_heads or candidates: |
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938 # remove candidate that are ancestors of other heads |
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|
939 new_heads.update(candidates) |
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940 prunestart = repo.revs(b"parents(%ld) and not null", new_heads) |
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941 pruned = dagop.reachableroots(repo, candidates, prunestart) |
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|
942 new_heads.difference_update(pruned) |
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943 |
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|
944 return pycompat.maplist(cl.node, sorted(new_heads)) |
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|
945 |
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946 |
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|
947 def newcommitphase(ui): |
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948 # type: (uimod.ui) -> int |
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|
949 """helper to get the target phase of new commit |
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|
950 |
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|
951 Handle all possible values for the phases.new-commit options. |
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|
952 |
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|
953 """ |
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|
954 v = ui.config(b'phases', b'new-commit') |
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|
955 try: |
45117
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|
956 return phasenumber2[v] |
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|
957 except KeyError: |
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|
958 raise error.ConfigError( |
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|
959 _(b"phases.new-commit: not a valid phase name ('%s')") % v |
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|
960 ) |
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|
961 |
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|
962 |
17671
fdd0fc046cf1
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|
963 def hassecret(repo): |
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|
964 # type: (localrepo.localrepository) -> bool |
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|
965 """utility function that check if a repo have any secret changeset.""" |
45063
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44993
diff
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|
966 return bool(repo._phasecache.phaseroots[secret]) |
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|
967 |
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|
968 |
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|
969 def preparehookargs(node, old, new): |
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|
970 # type: (bytes, Optional[int], Optional[int]) -> Dict[bytes, bytes] |
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|
971 if old is None: |
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972 old = b'' |
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|
973 else: |
34876
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|
974 old = phasenames[old] |
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|
975 return {b'node': node, b'oldphase': old, b'phase': phasenames[new]} |