Mercurial > hg
annotate mercurial/phases.py @ 43297:8a2925265402
sidedatacopies: fast path data fetching if revision has no sidedata
When using the side data mode, we know their won't be any copy information
sidedata. Skipping revision restoration give an important speed boost.
In the future, there will be other user of sidedata, reducing the efficiency of
this. We should consider adding a dedicated flag in revlog V2 to preserve this
optimisation. The current situation is good enough for now.
revision: large amount; added files: large amount; rename small amount; c3b14617fbd7 9ba6ab77fd29
before: ! wall 2.401569 comb 2.400000 user 2.390000 sys 0.010000 (median of 10)
after: ! wall 1.429294 comb 1.430000 user 1.410000 sys 0.020000 (median of 10)
revision: large amount; added files: small amount; rename small amount; c3b14617fbd7 f650a9b140d2
before: ! wall 3.519140 comb 3.520000 user 3.470000 sys 0.050000 (median of 10)
after: ! wall 1.963332 comb 1.960000 user 1.960000 sys 0.000000 (median of 10)
revision: large amount; added files: large amount; rename large amount; 08ea3258278e d9fa043f30c0
before: ! wall 0.593880 comb 0.600000 user 0.590000 sys 0.010000 (median of 15)
after: ! wall 0.251679 comb 0.250000 user 0.250000 sys 0.000000 (median of 38)
revision: small amount; added files: large amount; rename large amount; df6f7a526b60 a83dc6a2d56f
before: ! wall 0.013414 comb 0.020000 user 0.020000 sys 0.000000 (median of 220)
after: ! wall 0.013222 comb 0.020000 user 0.020000 sys 0.000000 (median of 223)
revision: small amount; added files: large amount; rename small amount; 4aa4e1f8e19a 169138063d63
before: ! wall 0.002711 comb 0.000000 user 0.000000 sys 0.000000 (median of 1000)
after: ! wall 0.001631 comb 0.000000 user 0.000000 sys 0.000000 (median of 1000)
revision: small amount; added files: small amount; rename small amount; 4bc173b045a6 964879152e2e
before: ! wall 0.000077 comb 0.000000 user 0.000000 sys 0.000000 (median of 12208)
after: ! wall 0.000078 comb 0.000000 user 0.000000 sys 0.000000 (median of 12012)
revision: medium amount; added files: large amount; rename medium amount; c95f1ced15f2 2c68e87c3efe
before: ! wall 0.410067 comb 0.410000 user 0.410000 sys 0.000000 (median of 23)
after: ! wall 0.207786 comb 0.200000 user 0.200000 sys 0.000000 (median of 46)
revision: medium amount; added files: medium amount; rename small amount; d343da0c55a8 d7746d32bf9d
before: ! wall 0.097004 comb 0.090000 user 0.090000 sys 0.000000 (median of 100)
after: ! wall 0.038495 comb 0.030000 user 0.030000 sys 0.000000 (median of 100)
Differential Revision: https://phab.mercurial-scm.org/D7074
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 02 Oct 2019 18:16:02 -0400 |
parents | d783f945a701 |
children | 9970412d2ce3 |
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 ) |
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116 from .pycompat import ( |
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117 getattr, |
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118 setattr, |
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119 ) |
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120 from . import ( |
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121 error, |
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122 pycompat, |
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123 smartset, |
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124 txnutil, |
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125 util, |
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126 ) |
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127 |
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128 _fphasesentry = struct.Struct(b'>i20s') |
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129 |
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130 INTERNAL_FLAG = 64 # Phases for mercurial internal usage only |
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131 HIDEABLE_FLAG = 32 # Phases that are hideable |
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132 |
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133 # record phase index |
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134 public, draft, secret = range(3) |
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135 internal = INTERNAL_FLAG | HIDEABLE_FLAG |
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136 archived = HIDEABLE_FLAG |
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137 allphases = range(internal + 1) |
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138 trackedphases = allphases[1:] |
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139 # record phase names |
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140 cmdphasenames = [b'public', b'draft', b'secret'] # known to `hg phase` command |
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141 phasenames = [None] * len(allphases) |
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142 phasenames[: len(cmdphasenames)] = cmdphasenames |
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143 phasenames[archived] = b'archived' |
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144 phasenames[internal] = b'internal' |
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145 # record phase property |
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146 mutablephases = tuple(allphases[1:]) |
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147 remotehiddenphases = tuple(allphases[2:]) |
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148 localhiddenphases = tuple(p for p in allphases if p & HIDEABLE_FLAG) |
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149 |
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150 |
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151 def supportinternal(repo): |
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152 """True if the internal phase can be used on a repository""" |
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153 return b'internal-phase' in repo.requirements |
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154 |
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155 |
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156 def _readroots(repo, phasedefaults=None): |
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157 """Read phase roots from disk |
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158 |
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159 phasedefaults is a list of fn(repo, roots) callable, which are |
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160 executed if the phase roots file does not exist. When phases are |
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161 being initialized on an existing repository, this could be used to |
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162 set selected changesets phase to something else than public. |
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163 |
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164 Return (roots, dirty) where dirty is true if roots differ from |
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165 what is being stored. |
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166 """ |
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167 repo = repo.unfiltered() |
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168 dirty = False |
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169 roots = [set() for i in allphases] |
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170 try: |
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171 f, pending = txnutil.trypending(repo.root, repo.svfs, b'phaseroots') |
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172 try: |
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173 for line in f: |
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174 phase, nh = line.split() |
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175 roots[int(phase)].add(bin(nh)) |
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176 finally: |
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177 f.close() |
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178 except IOError as inst: |
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179 if inst.errno != errno.ENOENT: |
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180 raise |
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181 if phasedefaults: |
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182 for f in phasedefaults: |
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183 roots = f(repo, roots) |
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184 dirty = True |
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185 return roots, dirty |
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186 |
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187 |
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188 def binaryencode(phasemapping): |
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189 """encode a 'phase -> nodes' mapping into a binary stream |
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190 |
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191 Since phases are integer the mapping is actually a python list: |
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192 [[PUBLIC_HEADS], [DRAFTS_HEADS], [SECRET_HEADS]] |
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193 """ |
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194 binarydata = [] |
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195 for phase, nodes in enumerate(phasemapping): |
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196 for head in nodes: |
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197 binarydata.append(_fphasesentry.pack(phase, head)) |
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198 return b''.join(binarydata) |
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199 |
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200 |
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201 def binarydecode(stream): |
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202 """decode a binary stream into a 'phase -> nodes' mapping |
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203 |
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204 Since phases are integer the mapping is actually a python list.""" |
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205 headsbyphase = [[] for i in allphases] |
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206 entrysize = _fphasesentry.size |
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207 while True: |
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208 entry = stream.read(entrysize) |
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209 if len(entry) < entrysize: |
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210 if entry: |
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211 raise error.Abort(_(b'bad phase-heads stream')) |
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212 break |
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213 phase, node = _fphasesentry.unpack(entry) |
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214 headsbyphase[phase].append(node) |
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215 return headsbyphase |
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216 |
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217 |
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218 def _trackphasechange(data, rev, old, new): |
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219 """add a phase move the <data> dictionnary |
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220 |
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221 If data is None, nothing happens. |
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222 """ |
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223 if data is None: |
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224 return |
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225 existing = data.get(rev) |
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226 if existing is not None: |
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227 old = existing[0] |
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228 data[rev] = (old, new) |
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229 |
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230 |
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231 class phasecache(object): |
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232 def __init__(self, repo, phasedefaults, _load=True): |
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233 if _load: |
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234 # Cheap trick to allow shallow-copy without copy module |
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235 self.phaseroots, self.dirty = _readroots(repo, phasedefaults) |
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236 self._loadedrevslen = 0 |
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237 self._phasesets = None |
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238 self.filterunknown(repo) |
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239 self.opener = repo.svfs |
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240 |
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241 def getrevset(self, repo, phases, subset=None): |
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242 """return a smartset for the given phases""" |
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243 self.loadphaserevs(repo) # ensure phase's sets are loaded |
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244 phases = set(phases) |
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245 if public not in phases: |
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246 # fast path: _phasesets contains the interesting sets, |
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247 # might only need a union and post-filtering. |
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248 if len(phases) == 1: |
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249 [p] = phases |
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250 revs = self._phasesets[p] |
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251 else: |
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252 revs = set.union(*[self._phasesets[p] for p in phases]) |
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253 if repo.changelog.filteredrevs: |
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254 revs = revs - repo.changelog.filteredrevs |
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255 if subset is None: |
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256 return smartset.baseset(revs) |
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257 else: |
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258 return subset & smartset.baseset(revs) |
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259 else: |
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260 phases = set(allphases).difference(phases) |
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261 if not phases: |
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262 return smartset.fullreposet(repo) |
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263 if len(phases) == 1: |
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264 [p] = phases |
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265 revs = self._phasesets[p] |
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266 else: |
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267 revs = set.union(*[self._phasesets[p] for p in phases]) |
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268 if subset is None: |
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269 subset = smartset.fullreposet(repo) |
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270 if not revs: |
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271 return subset |
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272 return subset.filter(lambda r: r not in revs) |
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273 |
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274 def copy(self): |
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275 # Shallow copy meant to ensure isolation in |
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276 # advance/retractboundary(), nothing more. |
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277 ph = self.__class__(None, None, _load=False) |
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278 ph.phaseroots = self.phaseroots[:] |
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279 ph.dirty = self.dirty |
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280 ph.opener = self.opener |
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281 ph._loadedrevslen = self._loadedrevslen |
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282 ph._phasesets = self._phasesets |
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283 return ph |
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284 |
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285 def replace(self, phcache): |
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286 """replace all values in 'self' with content of phcache""" |
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287 for a in ( |
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288 b'phaseroots', |
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289 b'dirty', |
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290 b'opener', |
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291 b'_loadedrevslen', |
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292 b'_phasesets', |
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293 ): |
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294 setattr(self, a, getattr(phcache, a)) |
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295 |
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296 def _getphaserevsnative(self, repo): |
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297 repo = repo.unfiltered() |
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298 nativeroots = [] |
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299 for phase in trackedphases: |
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300 nativeroots.append( |
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301 pycompat.maplist(repo.changelog.rev, self.phaseroots[phase]) |
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302 ) |
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303 return repo.changelog.computephases(nativeroots) |
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304 |
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305 def _computephaserevspure(self, repo): |
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306 repo = repo.unfiltered() |
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307 cl = repo.changelog |
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308 self._phasesets = [set() for phase in allphases] |
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309 lowerroots = set() |
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310 for phase in reversed(trackedphases): |
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311 roots = pycompat.maplist(cl.rev, self.phaseroots[phase]) |
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312 if roots: |
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313 ps = set(cl.descendants(roots)) |
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314 for root in roots: |
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315 ps.add(root) |
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316 ps.difference_update(lowerroots) |
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317 lowerroots.update(ps) |
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318 self._phasesets[phase] = ps |
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319 self._loadedrevslen = len(cl) |
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320 |
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321 def loadphaserevs(self, repo): |
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322 """ensure phase information is loaded in the object""" |
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323 if self._phasesets is None: |
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324 try: |
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325 res = self._getphaserevsnative(repo) |
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326 self._loadedrevslen, self._phasesets = res |
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327 except AttributeError: |
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328 self._computephaserevspure(repo) |
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329 |
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330 def invalidate(self): |
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331 self._loadedrevslen = 0 |
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332 self._phasesets = None |
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333 |
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334 def phase(self, repo, rev): |
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335 # We need a repo argument here to be able to build _phasesets |
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336 # if necessary. The repository instance is not stored in |
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337 # phasecache to avoid reference cycles. The changelog instance |
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338 # is not stored because it is a filecache() property and can |
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339 # be replaced without us being notified. |
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340 if rev == nullrev: |
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341 return public |
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342 if rev < nullrev: |
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343 raise ValueError(_(b'cannot lookup negative revision')) |
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344 if rev >= self._loadedrevslen: |
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345 self.invalidate() |
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346 self.loadphaserevs(repo) |
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347 for phase in trackedphases: |
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348 if rev in self._phasesets[phase]: |
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349 return phase |
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350 return public |
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351 |
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352 def write(self): |
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353 if not self.dirty: |
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354 return |
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355 f = self.opener(b'phaseroots', b'w', atomictemp=True, checkambig=True) |
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356 try: |
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357 self._write(f) |
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358 finally: |
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359 f.close() |
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360 |
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361 def _write(self, fp): |
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362 for phase, roots in enumerate(self.phaseroots): |
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363 for h in sorted(roots): |
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364 fp.write(b'%i %s\n' % (phase, hex(h))) |
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365 self.dirty = False |
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366 |
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367 def _updateroots(self, phase, newroots, tr): |
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368 self.phaseroots[phase] = newroots |
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369 self.invalidate() |
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370 self.dirty = True |
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371 |
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372 tr.addfilegenerator(b'phase', (b'phaseroots',), self._write) |
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373 tr.hookargs[b'phases_moved'] = b'1' |
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374 |
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375 def registernew(self, repo, tr, targetphase, nodes): |
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376 repo = repo.unfiltered() |
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377 self._retractboundary(repo, tr, targetphase, nodes) |
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378 if tr is not None and b'phases' in tr.changes: |
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379 phasetracking = tr.changes[b'phases'] |
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380 torev = repo.changelog.rev |
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381 phase = self.phase |
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382 for n in nodes: |
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383 rev = torev(n) |
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384 revphase = phase(repo, rev) |
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385 _trackphasechange(phasetracking, rev, None, revphase) |
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386 repo.invalidatevolatilesets() |
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387 |
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388 def advanceboundary(self, repo, tr, targetphase, nodes, dryrun=None): |
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389 """Set all 'nodes' to phase 'targetphase' |
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390 |
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391 Nodes with a phase lower than 'targetphase' are not affected. |
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392 |
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393 If dryrun is True, no actions will be performed |
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394 |
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395 Returns a set of revs whose phase is changed or should be changed |
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396 """ |
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397 # Be careful to preserve shallow-copied values: do not update |
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398 # phaseroots values, replace them. |
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399 if tr is None: |
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400 phasetracking = None |
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401 else: |
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402 phasetracking = tr.changes.get(b'phases') |
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403 |
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404 repo = repo.unfiltered() |
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405 |
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406 changes = set() # set of revisions to be changed |
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407 delroots = [] # set of root deleted by this path |
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408 for phase in pycompat.xrange(targetphase + 1, len(allphases)): |
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409 # filter nodes that are not in a compatible phase already |
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410 nodes = [ |
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411 n for n in nodes if self.phase(repo, repo[n].rev()) >= phase |
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412 ] |
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413 if not nodes: |
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414 break # no roots to move anymore |
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415 |
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416 olds = self.phaseroots[phase] |
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417 |
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418 affected = repo.revs(b'%ln::%ln', olds, nodes) |
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419 changes.update(affected) |
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420 if dryrun: |
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421 continue |
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422 for r in affected: |
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423 _trackphasechange( |
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424 phasetracking, r, self.phase(repo, r), targetphase |
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425 ) |
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426 |
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427 roots = set( |
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428 ctx.node() |
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429 for ctx in repo.set(b'roots((%ln::) - %ld)', olds, affected) |
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430 ) |
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431 if olds != roots: |
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432 self._updateroots(phase, roots, tr) |
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433 # some roots may need to be declared for lower phases |
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434 delroots.extend(olds - roots) |
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435 if not dryrun: |
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436 # declare deleted root in the target phase |
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437 if targetphase != 0: |
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438 self._retractboundary(repo, tr, targetphase, delroots) |
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439 repo.invalidatevolatilesets() |
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440 return changes |
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441 |
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442 def retractboundary(self, repo, tr, targetphase, nodes): |
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443 oldroots = self.phaseroots[: targetphase + 1] |
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444 if tr is None: |
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445 phasetracking = None |
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446 else: |
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447 phasetracking = tr.changes.get(b'phases') |
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448 repo = repo.unfiltered() |
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449 if ( |
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450 self._retractboundary(repo, tr, targetphase, nodes) |
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451 and phasetracking is not None |
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452 ): |
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453 |
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454 # find the affected revisions |
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455 new = self.phaseroots[targetphase] |
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456 old = oldroots[targetphase] |
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457 affected = set(repo.revs(b'(%ln::) - (%ln::)', new, old)) |
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458 |
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459 # find the phase of the affected revision |
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460 for phase in pycompat.xrange(targetphase, -1, -1): |
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461 if phase: |
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462 roots = oldroots[phase] |
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463 revs = set(repo.revs(b'%ln::%ld', roots, affected)) |
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464 affected -= revs |
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465 else: # public phase |
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466 revs = affected |
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467 for r in revs: |
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468 _trackphasechange(phasetracking, r, phase, targetphase) |
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469 repo.invalidatevolatilesets() |
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470 |
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471 def _retractboundary(self, repo, tr, targetphase, nodes): |
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472 # Be careful to preserve shallow-copied values: do not update |
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473 # phaseroots values, replace them. |
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474 if targetphase in (archived, internal) and not supportinternal(repo): |
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475 name = phasenames[targetphase] |
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476 msg = b'this repository does not support the %s phase' % name |
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477 raise error.ProgrammingError(msg) |
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478 |
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479 repo = repo.unfiltered() |
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480 currentroots = self.phaseroots[targetphase] |
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481 finalroots = oldroots = set(currentroots) |
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482 newroots = [ |
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483 n for n in nodes if self.phase(repo, repo[n].rev()) < targetphase |
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484 ] |
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485 if newroots: |
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486 |
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487 if nullid in newroots: |
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488 raise error.Abort(_(b'cannot change null revision phase')) |
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489 currentroots = currentroots.copy() |
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490 currentroots.update(newroots) |
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491 |
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492 # Only compute new roots for revs above the roots that are being |
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493 # retracted. |
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494 minnewroot = min(repo[n].rev() for n in newroots) |
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495 aboveroots = [ |
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496 n for n in currentroots if repo[n].rev() >= minnewroot |
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497 ] |
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498 updatedroots = repo.set(b'roots(%ln::)', aboveroots) |
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499 |
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500 finalroots = set( |
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501 n for n in currentroots if repo[n].rev() < minnewroot |
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502 ) |
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503 finalroots.update(ctx.node() for ctx in updatedroots) |
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504 if finalroots != oldroots: |
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505 self._updateroots(targetphase, finalroots, tr) |
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506 return True |
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507 return False |
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508 |
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509 def filterunknown(self, repo): |
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510 """remove unknown nodes from the phase boundary |
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511 |
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512 Nothing is lost as unknown nodes only hold data for their descendants. |
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513 """ |
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514 filtered = False |
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515 nodemap = repo.changelog.nodemap # to filter unknown nodes |
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516 for phase, nodes in enumerate(self.phaseroots): |
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517 missing = sorted(node for node in nodes if node not in nodemap) |
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518 if missing: |
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519 for mnode in missing: |
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520 repo.ui.debug( |
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521 b'removing unknown node %s from %i-phase boundary\n' |
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522 % (short(mnode), phase) |
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523 ) |
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524 nodes.symmetric_difference_update(missing) |
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525 filtered = True |
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526 if filtered: |
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527 self.dirty = True |
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528 # filterunknown is called by repo.destroyed, we may have no changes in |
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529 # root but _phasesets contents is certainly invalid (or at least we |
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530 # have not proper way to check that). related to issue 3858. |
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531 # |
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532 # The other caller is __init__ that have no _phasesets initialized |
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533 # anyway. If this change we should consider adding a dedicated |
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534 # "destroyed" function to phasecache or a proper cache key mechanism |
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535 # (see branchmap one) |
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536 self.invalidate() |
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537 |
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538 |
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539 def advanceboundary(repo, tr, targetphase, nodes, dryrun=None): |
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540 """Add nodes to a phase changing other nodes phases if necessary. |
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541 |
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542 This function move boundary *forward* this means that all nodes |
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543 are set in the target phase or kept in a *lower* phase. |
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544 |
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545 Simplify boundary to contains phase roots only. |
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546 |
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547 If dryrun is True, no actions will be performed |
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548 |
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549 Returns a set of revs whose phase is changed or should be changed |
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550 """ |
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551 phcache = repo._phasecache.copy() |
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552 changes = phcache.advanceboundary( |
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553 repo, tr, targetphase, nodes, dryrun=dryrun |
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554 ) |
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555 if not dryrun: |
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556 repo._phasecache.replace(phcache) |
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557 return changes |
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558 |
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559 |
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560 def retractboundary(repo, tr, targetphase, nodes): |
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561 """Set nodes back to a phase changing other nodes phases if |
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562 necessary. |
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563 |
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564 This function move boundary *backward* this means that all nodes |
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565 are set in the target phase or kept in a *higher* phase. |
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566 |
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567 Simplify boundary to contains phase roots only.""" |
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568 phcache = repo._phasecache.copy() |
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569 phcache.retractboundary(repo, tr, targetphase, nodes) |
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570 repo._phasecache.replace(phcache) |
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571 |
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572 |
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573 def registernew(repo, tr, targetphase, nodes): |
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574 """register a new revision and its phase |
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575 |
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576 Code adding revisions to the repository should use this function to |
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577 set new changeset in their target phase (or higher). |
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578 """ |
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579 phcache = repo._phasecache.copy() |
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580 phcache.registernew(repo, tr, targetphase, nodes) |
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581 repo._phasecache.replace(phcache) |
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582 |
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583 |
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584 def listphases(repo): |
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585 """List phases root for serialization over pushkey""" |
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586 # Use ordered dictionary so behavior is deterministic. |
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587 keys = util.sortdict() |
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588 value = b'%i' % draft |
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589 cl = repo.unfiltered().changelog |
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590 for root in repo._phasecache.phaseroots[draft]: |
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591 if repo._phasecache.phase(repo, cl.rev(root)) <= draft: |
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592 keys[hex(root)] = value |
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593 |
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594 if repo.publishing(): |
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595 # Add an extra data to let remote know we are a publishing |
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596 # repo. Publishing repo can't just pretend they are old repo. |
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597 # When pushing to a publishing repo, the client still need to |
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598 # push phase boundary |
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599 # |
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600 # Push do not only push changeset. It also push phase data. |
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601 # New phase data may apply to common changeset which won't be |
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602 # push (as they are common). Here is a very simple example: |
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603 # |
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604 # 1) repo A push changeset X as draft to repo B |
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605 # 2) repo B make changeset X public |
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606 # 3) repo B push to repo A. X is not pushed but the data that |
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607 # X as now public should |
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608 # |
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609 # The server can't handle it on it's own as it has no idea of |
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610 # client phase data. |
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611 keys[b'publishing'] = b'True' |
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612 return keys |
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613 |
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614 |
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615 def pushphase(repo, nhex, oldphasestr, newphasestr): |
17535 | 616 """List phases root for serialization over pushkey""" |
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617 repo = repo.unfiltered() |
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618 with repo.lock(): |
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619 currentphase = repo[nhex].phase() |
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620 newphase = abs(int(newphasestr)) # let's avoid negative index surprise |
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621 oldphase = abs(int(oldphasestr)) # let's avoid negative index surprise |
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622 if currentphase == oldphase and newphase < oldphase: |
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623 with repo.transaction(b'pushkey-phase') as tr: |
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624 advanceboundary(repo, tr, newphase, [bin(nhex)]) |
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625 return True |
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626 elif currentphase == newphase: |
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627 # raced, but got correct result |
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628 return True |
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629 else: |
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630 return False |
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631 |
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632 |
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633 def subsetphaseheads(repo, subset): |
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634 """Finds the phase heads for a subset of a history |
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635 |
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636 Returns a list indexed by phase number where each item is a list of phase |
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637 head nodes. |
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638 """ |
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639 cl = repo.changelog |
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640 |
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641 headsbyphase = [[] for i in allphases] |
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642 # No need to keep track of secret phase; any heads in the subset that |
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643 # are not mentioned are implicitly secret. |
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644 for phase in allphases[:secret]: |
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645 revset = b"heads(%%ln & %s())" % phasenames[phase] |
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646 headsbyphase[phase] = [cl.node(r) for r in repo.revs(revset, subset)] |
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647 return headsbyphase |
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648 |
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649 |
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650 def updatephases(repo, trgetter, headsbyphase): |
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651 """Updates the repo with the given phase heads""" |
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652 # Now advance phase boundaries of all but secret phase |
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653 # |
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654 # run the update (and fetch transaction) only if there are actually things |
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655 # to update. This avoid creating empty transaction during no-op operation. |
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656 |
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657 for phase in allphases[:-1]: |
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658 revset = b'%ln - _phase(%s)' |
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659 heads = [c.node() for c in repo.set(revset, headsbyphase[phase], phase)] |
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660 if heads: |
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661 advanceboundary(repo, trgetter(), phase, heads) |
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662 |
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663 |
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664 def analyzeremotephases(repo, subset, roots): |
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665 """Compute phases heads and root in a subset of node from root dict |
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666 |
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667 * subset is heads of the subset |
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668 * roots is {<nodeid> => phase} mapping. key and value are string. |
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669 |
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670 Accept unknown element input |
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671 """ |
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672 repo = repo.unfiltered() |
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673 # build list from dictionary |
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674 draftroots = [] |
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675 nodemap = repo.changelog.nodemap # to filter unknown nodes |
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676 for nhex, phase in pycompat.iteritems(roots): |
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677 if nhex == b'publishing': # ignore data related to publish option |
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678 continue |
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679 node = bin(nhex) |
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680 phase = int(phase) |
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681 if phase == public: |
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682 if node != nullid: |
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683 repo.ui.warn( |
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684 _( |
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685 b'ignoring inconsistent public root' |
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686 b' from remote: %s\n' |
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687 ) |
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688 % nhex |
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689 ) |
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690 elif phase == draft: |
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691 if node in nodemap: |
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692 draftroots.append(node) |
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693 else: |
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694 repo.ui.warn( |
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695 _(b'ignoring unexpected root from remote: %i %s\n') |
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696 % (phase, nhex) |
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697 ) |
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698 # compute heads |
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699 publicheads = newheads(repo, subset, draftroots) |
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700 return publicheads, draftroots |
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701 |
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702 |
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703 class remotephasessummary(object): |
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704 """summarize phase information on the remote side |
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705 |
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706 :publishing: True is the remote is publishing |
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707 :publicheads: list of remote public phase heads (nodes) |
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708 :draftheads: list of remote draft phase heads (nodes) |
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709 :draftroots: list of remote draft phase root (nodes) |
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710 """ |
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711 |
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712 def __init__(self, repo, remotesubset, remoteroots): |
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713 unfi = repo.unfiltered() |
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714 self._allremoteroots = remoteroots |
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715 |
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716 self.publishing = remoteroots.get(b'publishing', False) |
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717 |
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718 ana = analyzeremotephases(repo, remotesubset, remoteroots) |
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719 self.publicheads, self.draftroots = ana |
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720 # Get the list of all "heads" revs draft on remote |
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721 dheads = unfi.set(b'heads(%ln::%ln)', self.draftroots, remotesubset) |
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722 self.draftheads = [c.node() for c in dheads] |
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723 |
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724 |
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725 def newheads(repo, heads, roots): |
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726 """compute new head of a subset minus another |
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727 |
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728 * `heads`: define the first subset |
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729 * `roots`: define the second we subtract from the first""" |
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730 # prevent an import cycle |
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731 # phases > dagop > patch > copies > scmutil > obsolete > obsutil > phases |
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732 from . import dagop |
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733 |
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734 repo = repo.unfiltered() |
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735 cl = repo.changelog |
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736 rev = cl.nodemap.get |
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737 if not roots: |
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738 return heads |
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739 if not heads or heads == [nullid]: |
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740 return [] |
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741 # The logic operated on revisions, convert arguments early for convenience |
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742 new_heads = set(rev(n) for n in heads if n != nullid) |
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743 roots = [rev(n) for n in roots] |
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744 # compute the area we need to remove |
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745 affected_zone = repo.revs(b"(%ld::%ld)", roots, new_heads) |
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746 # heads in the area are no longer heads |
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747 new_heads.difference_update(affected_zone) |
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748 # revisions in the area have children outside of it, |
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749 # They might be new heads |
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750 candidates = repo.revs( |
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751 b"parents(%ld + (%ld and merge())) and not null", roots, affected_zone |
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752 ) |
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753 candidates -= affected_zone |
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754 if new_heads or candidates: |
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755 # remove candidate that are ancestors of other heads |
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756 new_heads.update(candidates) |
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757 prunestart = repo.revs(b"parents(%ld) and not null", new_heads) |
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758 pruned = dagop.reachableroots(repo, candidates, prunestart) |
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759 new_heads.difference_update(pruned) |
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760 |
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761 return pycompat.maplist(cl.node, sorted(new_heads)) |
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762 |
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763 |
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764 def newcommitphase(ui): |
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765 """helper to get the target phase of new commit |
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766 |
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767 Handle all possible values for the phases.new-commit options. |
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768 |
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769 """ |
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770 v = ui.config(b'phases', b'new-commit') |
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771 try: |
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772 return phasenames.index(v) |
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773 except ValueError: |
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774 try: |
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775 return int(v) |
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776 except ValueError: |
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777 msg = _(b"phases.new-commit: not a valid phase name ('%s')") |
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778 raise error.ConfigError(msg % v) |
308406677e9d
phases: allow phase name in phases.new-commit settings
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
16025
diff
changeset
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779 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40580
diff
changeset
|
780 |
17671
fdd0fc046cf1
clfilter: introduce a `hassecret` function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17537
diff
changeset
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781 def hassecret(repo): |
fdd0fc046cf1
clfilter: introduce a `hassecret` function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17537
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changeset
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782 """utility function that check if a repo have any secret changeset.""" |
fdd0fc046cf1
clfilter: introduce a `hassecret` function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
17537
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changeset
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783 return bool(repo._phasecache.phaseroots[2]) |
34710
cdf833d7de98
phase: add a dedicated txnclose-phase hook
Boris Feld <boris.feld@octobus.net>
parents:
34563
diff
changeset
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784 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40580
diff
changeset
|
785 |
34710
cdf833d7de98
phase: add a dedicated txnclose-phase hook
Boris Feld <boris.feld@octobus.net>
parents:
34563
diff
changeset
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786 def preparehookargs(node, old, new): |
cdf833d7de98
phase: add a dedicated txnclose-phase hook
Boris Feld <boris.feld@octobus.net>
parents:
34563
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changeset
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787 if old is None: |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
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788 old = b'' |
34710
cdf833d7de98
phase: add a dedicated txnclose-phase hook
Boris Feld <boris.feld@octobus.net>
parents:
34563
diff
changeset
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789 else: |
34876
eb1b964b354b
phases: pass phase names to hooks instead of internal values
Kevin Bullock <kbullock+mercurial@ringworld.org>
parents:
34819
diff
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790 old = phasenames[old] |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
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791 return {b'node': node, b'oldphase': old, b'phase': phasenames[new]} |