Mercurial > hg
annotate mercurial/phases.py @ 29112:5edc5acecc83
sslutil: handle ui.insecureconnections in validator
Right now, web.cacerts=! means one of two things:
1) Use of --insecure
2) No CAs could be found and were loaded (see sslkwargs)
This isn't very obvious and makes changing behavior of these
different scenarios independent of the other impossible.
This patch changes the validator code to explicit handle the
case of --insecure being used.
As the inline comment indicates, there is room to possibly change
messaging and logic here. For now, we are backwards compatible.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Thu, 05 May 2016 00:37:28 -0700 |
parents | f16b84b1e40e |
children | 3a2357c31d2a |
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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105 import errno |
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106 import os |
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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 . import ( |
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117 error, |
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118 ) |
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119 |
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120 allphases = public, draft, secret = range(3) |
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121 trackedphases = allphases[1:] |
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122 phasenames = ['public', 'draft', 'secret'] |
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123 |
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124 def _readroots(repo, phasedefaults=None): |
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125 """Read phase roots from disk |
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126 |
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127 phasedefaults is a list of fn(repo, roots) callable, which are |
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128 executed if the phase roots file does not exist. When phases are |
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129 being initialized on an existing repository, this could be used to |
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130 set selected changesets phase to something else than public. |
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131 |
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132 Return (roots, dirty) where dirty is true if roots differ from |
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133 what is being stored. |
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134 """ |
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135 repo = repo.unfiltered() |
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136 dirty = False |
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137 roots = [set() for i in allphases] |
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138 try: |
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139 f = None |
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140 if 'HG_PENDING' in os.environ: |
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141 try: |
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142 f = repo.svfs('phaseroots.pending') |
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143 except IOError as inst: |
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144 if inst.errno != errno.ENOENT: |
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145 raise |
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146 if f is None: |
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147 f = repo.svfs('phaseroots') |
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148 try: |
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149 for line in f: |
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150 phase, nh = line.split() |
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151 roots[int(phase)].add(bin(nh)) |
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152 finally: |
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153 f.close() |
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154 except IOError as inst: |
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155 if inst.errno != errno.ENOENT: |
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156 raise |
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157 if phasedefaults: |
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158 for f in phasedefaults: |
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159 roots = f(repo, roots) |
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160 dirty = True |
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161 return roots, dirty |
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162 |
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163 class phasecache(object): |
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164 def __init__(self, repo, phasedefaults, _load=True): |
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165 if _load: |
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166 # Cheap trick to allow shallow-copy without copy module |
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167 self.phaseroots, self.dirty = _readroots(repo, phasedefaults) |
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168 self._phaserevs = None |
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169 self._phasesets = None |
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170 self.filterunknown(repo) |
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171 self.opener = repo.svfs |
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172 |
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173 def copy(self): |
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174 # Shallow copy meant to ensure isolation in |
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175 # advance/retractboundary(), nothing more. |
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176 ph = self.__class__(None, None, _load=False) |
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177 ph.phaseroots = self.phaseroots[:] |
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178 ph.dirty = self.dirty |
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179 ph.opener = self.opener |
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180 ph._phaserevs = self._phaserevs |
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181 ph._phasesets = self._phasesets |
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182 return ph |
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183 |
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184 def replace(self, phcache): |
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185 """replace all values in 'self' with content of phcache""" |
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186 for a in ('phaseroots', 'dirty', 'opener', '_phaserevs', '_phasesets'): |
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187 setattr(self, a, getattr(phcache, a)) |
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188 |
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189 def _getphaserevsnative(self, repo): |
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190 repo = repo.unfiltered() |
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191 nativeroots = [] |
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192 for phase in trackedphases: |
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193 nativeroots.append(map(repo.changelog.rev, self.phaseroots[phase])) |
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194 return repo.changelog.computephases(nativeroots) |
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195 |
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196 def _computephaserevspure(self, repo): |
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197 repo = repo.unfiltered() |
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198 revs = [public] * len(repo.changelog) |
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199 self._phaserevs = revs |
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200 self._populatephaseroots(repo) |
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201 for phase in trackedphases: |
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202 roots = map(repo.changelog.rev, self.phaseroots[phase]) |
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203 if roots: |
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204 for rev in roots: |
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205 revs[rev] = phase |
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206 for rev in repo.changelog.descendants(roots): |
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207 revs[rev] = phase |
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208 |
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209 def loadphaserevs(self, repo): |
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210 """ensure phase information is loaded in the object""" |
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211 if self._phaserevs is None: |
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212 try: |
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213 if repo.ui.configbool('experimental', |
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214 'nativephaseskillswitch'): |
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215 self._computephaserevspure(repo) |
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216 else: |
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217 res = self._getphaserevsnative(repo) |
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218 self._phaserevs, self._phasesets = res |
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219 except AttributeError: |
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220 self._computephaserevspure(repo) |
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221 |
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222 def invalidate(self): |
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223 self._phaserevs = None |
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224 self._phasesets = None |
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225 |
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226 def _populatephaseroots(self, repo): |
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227 """Fills the _phaserevs cache with phases for the roots. |
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228 """ |
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229 cl = repo.changelog |
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230 phaserevs = self._phaserevs |
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231 for phase in trackedphases: |
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232 roots = map(cl.rev, self.phaseroots[phase]) |
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233 for root in roots: |
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234 phaserevs[root] = phase |
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235 |
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236 def phase(self, repo, rev): |
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237 # We need a repo argument here to be able to build _phaserevs |
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238 # if necessary. The repository instance is not stored in |
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239 # phasecache to avoid reference cycles. The changelog instance |
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240 # is not stored because it is a filecache() property and can |
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241 # be replaced without us being notified. |
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242 if rev == nullrev: |
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243 return public |
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244 if rev < nullrev: |
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245 raise ValueError(_('cannot lookup negative revision')) |
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246 if self._phaserevs is None or rev >= len(self._phaserevs): |
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247 self.invalidate() |
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248 self.loadphaserevs(repo) |
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249 return self._phaserevs[rev] |
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250 |
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251 def write(self): |
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252 if not self.dirty: |
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253 return |
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254 f = self.opener('phaseroots', 'w', atomictemp=True) |
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255 try: |
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256 self._write(f) |
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257 finally: |
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258 f.close() |
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259 |
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260 def _write(self, fp): |
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261 for phase, roots in enumerate(self.phaseroots): |
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262 for h in roots: |
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263 fp.write('%i %s\n' % (phase, hex(h))) |
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264 self.dirty = False |
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265 |
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266 def _updateroots(self, phase, newroots, tr): |
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267 self.phaseroots[phase] = newroots |
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268 self.invalidate() |
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269 self.dirty = True |
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270 |
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271 tr.addfilegenerator('phase', ('phaseroots',), self._write) |
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272 tr.hookargs['phases_moved'] = '1' |
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273 |
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274 def advanceboundary(self, repo, tr, targetphase, nodes): |
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275 # Be careful to preserve shallow-copied values: do not update |
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276 # phaseroots values, replace them. |
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277 |
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278 repo = repo.unfiltered() |
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279 delroots = [] # set of root deleted by this path |
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280 for phase in xrange(targetphase + 1, len(allphases)): |
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281 # filter nodes that are not in a compatible phase already |
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282 nodes = [n for n in nodes |
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283 if self.phase(repo, repo[n].rev()) >= phase] |
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284 if not nodes: |
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285 break # no roots to move anymore |
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286 olds = self.phaseroots[phase] |
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287 roots = set(ctx.node() for ctx in repo.set( |
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288 'roots((%ln::) - (%ln::%ln))', olds, olds, nodes)) |
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289 if olds != roots: |
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290 self._updateroots(phase, roots, tr) |
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291 # some roots may need to be declared for lower phases |
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292 delroots.extend(olds - roots) |
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293 # declare deleted root in the target phase |
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294 if targetphase != 0: |
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295 self.retractboundary(repo, tr, targetphase, delroots) |
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296 repo.invalidatevolatilesets() |
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297 |
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298 def retractboundary(self, repo, tr, targetphase, nodes): |
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299 # Be careful to preserve shallow-copied values: do not update |
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300 # phaseroots values, replace them. |
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301 |
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302 repo = repo.unfiltered() |
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303 currentroots = self.phaseroots[targetphase] |
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304 newroots = [n for n in nodes |
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305 if self.phase(repo, repo[n].rev()) < targetphase] |
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306 if newroots: |
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307 if nullid in newroots: |
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308 raise error.Abort(_('cannot change null revision phase')) |
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309 currentroots = currentroots.copy() |
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310 currentroots.update(newroots) |
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311 |
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312 # Only compute new roots for revs above the roots that are being |
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313 # retracted. |
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314 minnewroot = min(repo[n].rev() for n in newroots) |
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315 aboveroots = [n for n in currentroots |
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316 if repo[n].rev() >= minnewroot] |
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317 updatedroots = repo.set('roots(%ln::)', aboveroots) |
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318 |
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319 finalroots = set(n for n in currentroots if repo[n].rev() < |
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320 minnewroot) |
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321 finalroots.update(ctx.node() for ctx in updatedroots) |
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322 |
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323 self._updateroots(targetphase, finalroots, tr) |
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324 repo.invalidatevolatilesets() |
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325 |
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326 def filterunknown(self, repo): |
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327 """remove unknown nodes from the phase boundary |
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328 |
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329 Nothing is lost as unknown nodes only hold data for their descendants. |
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330 """ |
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331 filtered = False |
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332 nodemap = repo.changelog.nodemap # to filter unknown nodes |
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333 for phase, nodes in enumerate(self.phaseroots): |
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334 missing = sorted(node for node in nodes if node not in nodemap) |
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335 if missing: |
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336 for mnode in missing: |
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337 repo.ui.debug( |
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338 'removing unknown node %s from %i-phase boundary\n' |
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339 % (short(mnode), phase)) |
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340 nodes.symmetric_difference_update(missing) |
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341 filtered = True |
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342 if filtered: |
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343 self.dirty = True |
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344 # filterunknown is called by repo.destroyed, we may have no changes in |
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345 # root but phaserevs contents is certainly invalid (or at least we |
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346 # have not proper way to check that). related to issue 3858. |
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347 # |
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348 # The other caller is __init__ that have no _phaserevs initialized |
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349 # anyway. If this change we should consider adding a dedicated |
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350 # "destroyed" function to phasecache or a proper cache key mechanism |
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351 # (see branchmap one) |
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352 self.invalidate() |
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353 |
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354 def advanceboundary(repo, tr, targetphase, nodes): |
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355 """Add nodes to a phase changing other nodes phases if necessary. |
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356 |
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357 This function move boundary *forward* this means that all nodes |
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358 are set in the target phase or kept in a *lower* phase. |
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359 |
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360 Simplify boundary to contains phase roots only.""" |
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361 phcache = repo._phasecache.copy() |
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362 phcache.advanceboundary(repo, tr, targetphase, nodes) |
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363 repo._phasecache.replace(phcache) |
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364 |
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365 def retractboundary(repo, tr, targetphase, nodes): |
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366 """Set nodes back to a phase changing other nodes phases if |
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367 necessary. |
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368 |
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369 This function move boundary *backward* this means that all nodes |
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370 are set in the target phase or kept in a *higher* phase. |
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371 |
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372 Simplify boundary to contains phase roots only.""" |
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373 phcache = repo._phasecache.copy() |
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374 phcache.retractboundary(repo, tr, targetphase, nodes) |
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375 repo._phasecache.replace(phcache) |
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376 |
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377 def listphases(repo): |
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378 """List phases root for serialization over pushkey""" |
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379 keys = {} |
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380 value = '%i' % draft |
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381 for root in repo._phasecache.phaseroots[draft]: |
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382 keys[hex(root)] = value |
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383 |
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384 if repo.publishing(): |
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385 # Add an extra data to let remote know we are a publishing |
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386 # repo. Publishing repo can't just pretend they are old repo. |
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387 # When pushing to a publishing repo, the client still need to |
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388 # push phase boundary |
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389 # |
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390 # Push do not only push changeset. It also push phase data. |
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391 # New phase data may apply to common changeset which won't be |
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392 # push (as they are common). Here is a very simple example: |
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393 # |
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394 # 1) repo A push changeset X as draft to repo B |
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395 # 2) repo B make changeset X public |
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396 # 3) repo B push to repo A. X is not pushed but the data that |
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397 # X as now public should |
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398 # |
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399 # The server can't handle it on it's own as it has no idea of |
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400 # client phase data. |
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401 keys['publishing'] = 'True' |
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402 return keys |
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403 |
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404 def pushphase(repo, nhex, oldphasestr, newphasestr): |
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406 repo = repo.unfiltered() |
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407 with repo.lock(): |
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408 currentphase = repo[nhex].phase() |
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409 newphase = abs(int(newphasestr)) # let's avoid negative index surprise |
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410 oldphase = abs(int(oldphasestr)) # let's avoid negative index surprise |
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411 if currentphase == oldphase and newphase < oldphase: |
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412 with repo.transaction('pushkey-phase') as tr: |
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413 advanceboundary(repo, tr, newphase, [bin(nhex)]) |
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414 return 1 |
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415 elif currentphase == newphase: |
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416 # raced, but got correct result |
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417 return 1 |
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418 else: |
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419 return 0 |
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420 |
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421 def analyzeremotephases(repo, subset, roots): |
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422 """Compute phases heads and root in a subset of node from root dict |
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423 |
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424 * subset is heads of the subset |
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425 * roots is {<nodeid> => phase} mapping. key and value are string. |
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426 |
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427 Accept unknown element input |
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428 """ |
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429 repo = repo.unfiltered() |
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430 # build list from dictionary |
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431 draftroots = [] |
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432 nodemap = repo.changelog.nodemap # to filter unknown nodes |
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433 for nhex, phase in roots.iteritems(): |
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434 if nhex == 'publishing': # ignore data related to publish option |
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435 continue |
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436 node = bin(nhex) |
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437 phase = int(phase) |
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438 if phase == public: |
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439 if node != nullid: |
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440 repo.ui.warn(_('ignoring inconsistent public root' |
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441 ' from remote: %s\n') % nhex) |
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442 elif phase == draft: |
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443 if node in nodemap: |
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444 draftroots.append(node) |
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445 else: |
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446 repo.ui.warn(_('ignoring unexpected root from remote: %i %s\n') |
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447 % (phase, nhex)) |
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phases: add a function to compute heads from root
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448 # compute heads |
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phase: extracts heads computation logics from analyzeremotephases
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449 publicheads = newheads(repo, subset, draftroots) |
15892
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phases: simplify phase exchange and movement over pushkey
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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15821
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450 return publicheads, draftroots |
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451 |
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452 def newheads(repo, heads, roots): |
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453 """compute new head of a subset minus another |
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454 |
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455 * `heads`: define the first subset |
17425
e95ec38f86b0
fix wording and not-completely-trivial spelling errors and bad docstrings
Mads Kiilerich <mads@kiilerich.com>
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17424
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456 * `roots`: define the second we subtract from the first""" |
18002
9bc5873e52af
clfilter: phases logic should be unfiltered
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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17979
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457 repo = repo.unfiltered() |
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458 revset = repo.set('heads((%ln + parents(%ln)) - (%ln::%ln))', |
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459 heads, roots, roots, heads) |
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460 return [c.node() for c in revset] |
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461 |
16030
308406677e9d
phases: allow phase name in phases.new-commit settings
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462 |
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463 def newcommitphase(ui): |
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464 """helper to get the target phase of new commit |
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465 |
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466 Handle all possible values for the phases.new-commit options. |
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467 |
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468 """ |
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469 v = ui.config('phases', 'new-commit', draft) |
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470 try: |
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471 return phasenames.index(v) |
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472 except ValueError: |
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473 try: |
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474 return int(v) |
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475 except ValueError: |
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476 msg = _("phases.new-commit: not a valid phase name ('%s')") |
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477 raise error.ConfigError(msg % v) |
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478 |
17671
fdd0fc046cf1
clfilter: introduce a `hassecret` function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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17537
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479 def hassecret(repo): |
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480 """utility function that check if a repo have any secret changeset.""" |
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481 return bool(repo._phasecache.phaseroots[2]) |