Mercurial > hg
annotate mercurial/phases.py @ 42252:a42cc325b682
gendoc: nest command headers under category headers
Differential Revision: https://phab.mercurial-scm.org/D6329
author | Sietse Brouwer <sbbrouwer@gmail.com> |
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date | Fri, 26 Apr 2019 12:41:48 +0200 |
parents | ab893a99b645 |
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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 . import ( |
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117 error, |
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118 pycompat, |
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119 smartset, |
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120 txnutil, |
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121 util, |
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122 ) |
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123 |
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124 _fphasesentry = struct.Struct('>i20s') |
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125 |
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126 INTERNAL_FLAG = 64 # Phases for mercurial internal usage only |
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127 HIDEABLE_FLAG = 32 # Phases that are hideable |
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128 |
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129 # record phase index |
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130 public, draft, secret = range(3) |
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131 internal = INTERNAL_FLAG | HIDEABLE_FLAG |
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132 archived = HIDEABLE_FLAG |
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133 allphases = range(internal + 1) |
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134 trackedphases = allphases[1:] |
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135 # record phase names |
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136 cmdphasenames = ['public', 'draft', 'secret'] # known to `hg phase` command |
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137 phasenames = [None] * len(allphases) |
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138 phasenames[:len(cmdphasenames)] = cmdphasenames |
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139 phasenames[archived] = 'archived' |
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140 phasenames[internal] = 'internal' |
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141 # record phase property |
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142 mutablephases = tuple(allphases[1:]) |
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143 remotehiddenphases = tuple(allphases[2:]) |
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144 localhiddenphases = tuple(p for p in allphases if p & HIDEABLE_FLAG) |
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145 |
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146 def supportinternal(repo): |
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147 """True if the internal phase can be used on a repository""" |
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148 return 'internal-phase' in repo.requirements |
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149 |
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150 def _readroots(repo, phasedefaults=None): |
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151 """Read phase roots from disk |
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152 |
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153 phasedefaults is a list of fn(repo, roots) callable, which are |
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154 executed if the phase roots file does not exist. When phases are |
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155 being initialized on an existing repository, this could be used to |
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156 set selected changesets phase to something else than public. |
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157 |
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158 Return (roots, dirty) where dirty is true if roots differ from |
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159 what is being stored. |
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160 """ |
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161 repo = repo.unfiltered() |
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162 dirty = False |
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163 roots = [set() for i in allphases] |
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164 try: |
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165 f, pending = txnutil.trypending(repo.root, repo.svfs, 'phaseroots') |
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166 try: |
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167 for line in f: |
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168 phase, nh = line.split() |
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169 roots[int(phase)].add(bin(nh)) |
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170 finally: |
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171 f.close() |
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172 except IOError as inst: |
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173 if inst.errno != errno.ENOENT: |
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174 raise |
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175 if phasedefaults: |
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176 for f in phasedefaults: |
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177 roots = f(repo, roots) |
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178 dirty = True |
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179 return roots, dirty |
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180 |
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181 def binaryencode(phasemapping): |
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182 """encode a 'phase -> nodes' mapping into a binary stream |
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183 |
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184 Since phases are integer the mapping is actually a python list: |
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185 [[PUBLIC_HEADS], [DRAFTS_HEADS], [SECRET_HEADS]] |
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186 """ |
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187 binarydata = [] |
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188 for phase, nodes in enumerate(phasemapping): |
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189 for head in nodes: |
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190 binarydata.append(_fphasesentry.pack(phase, head)) |
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191 return ''.join(binarydata) |
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192 |
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193 def binarydecode(stream): |
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194 """decode a binary stream into a 'phase -> nodes' mapping |
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195 |
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196 Since phases are integer the mapping is actually a python list.""" |
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197 headsbyphase = [[] for i in allphases] |
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198 entrysize = _fphasesentry.size |
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199 while True: |
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200 entry = stream.read(entrysize) |
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201 if len(entry) < entrysize: |
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202 if entry: |
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203 raise error.Abort(_('bad phase-heads stream')) |
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204 break |
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205 phase, node = _fphasesentry.unpack(entry) |
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206 headsbyphase[phase].append(node) |
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207 return headsbyphase |
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208 |
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209 def _trackphasechange(data, rev, old, new): |
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210 """add a phase move the <data> dictionnary |
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211 |
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212 If data is None, nothing happens. |
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213 """ |
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214 if data is None: |
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215 return |
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216 existing = data.get(rev) |
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217 if existing is not None: |
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218 old = existing[0] |
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219 data[rev] = (old, new) |
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220 |
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221 class phasecache(object): |
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222 def __init__(self, repo, phasedefaults, _load=True): |
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223 if _load: |
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224 # Cheap trick to allow shallow-copy without copy module |
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225 self.phaseroots, self.dirty = _readroots(repo, phasedefaults) |
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226 self._loadedrevslen = 0 |
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227 self._phasesets = None |
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228 self.filterunknown(repo) |
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229 self.opener = repo.svfs |
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230 |
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231 def getrevset(self, repo, phases, subset=None): |
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232 """return a smartset for the given phases""" |
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233 self.loadphaserevs(repo) # ensure phase's sets are loaded |
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234 phases = set(phases) |
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235 if public not in phases: |
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236 # fast path: _phasesets contains the interesting sets, |
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237 # might only need a union and post-filtering. |
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238 if len(phases) == 1: |
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239 [p] = phases |
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240 revs = self._phasesets[p] |
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241 else: |
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242 revs = set.union(*[self._phasesets[p] for p in phases]) |
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243 if repo.changelog.filteredrevs: |
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244 revs = revs - repo.changelog.filteredrevs |
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245 if subset is None: |
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246 return smartset.baseset(revs) |
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247 else: |
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248 return subset & smartset.baseset(revs) |
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249 else: |
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250 phases = set(allphases).difference(phases) |
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251 if not phases: |
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252 return smartset.fullreposet(repo) |
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253 if len(phases) == 1: |
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254 [p] = phases |
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255 revs = self._phasesets[p] |
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256 else: |
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257 revs = set.union(*[self._phasesets[p] for p in phases]) |
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258 if subset is None: |
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259 subset = smartset.fullreposet(repo) |
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260 if not revs: |
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261 return subset |
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262 return subset.filter(lambda r: r not in revs) |
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263 |
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264 def copy(self): |
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265 # Shallow copy meant to ensure isolation in |
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266 # advance/retractboundary(), nothing more. |
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267 ph = self.__class__(None, None, _load=False) |
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268 ph.phaseroots = self.phaseroots[:] |
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269 ph.dirty = self.dirty |
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270 ph.opener = self.opener |
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271 ph._loadedrevslen = self._loadedrevslen |
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272 ph._phasesets = self._phasesets |
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273 return ph |
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274 |
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275 def replace(self, phcache): |
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276 """replace all values in 'self' with content of phcache""" |
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277 for a in ('phaseroots', 'dirty', 'opener', '_loadedrevslen', |
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278 '_phasesets'): |
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279 setattr(self, a, getattr(phcache, a)) |
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280 |
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281 def _getphaserevsnative(self, repo): |
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282 repo = repo.unfiltered() |
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283 nativeroots = [] |
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284 for phase in trackedphases: |
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285 nativeroots.append(pycompat.maplist(repo.changelog.rev, |
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286 self.phaseroots[phase])) |
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287 return repo.changelog.computephases(nativeroots) |
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288 |
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289 def _computephaserevspure(self, repo): |
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290 repo = repo.unfiltered() |
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291 cl = repo.changelog |
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292 self._phasesets = [set() for phase in allphases] |
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293 lowerroots = set() |
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294 for phase in reversed(trackedphases): |
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295 roots = pycompat.maplist(cl.rev, self.phaseroots[phase]) |
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296 if roots: |
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297 ps = set(cl.descendants(roots)) |
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298 for root in roots: |
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299 ps.add(root) |
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300 ps.difference_update(lowerroots) |
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301 lowerroots.update(ps) |
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302 self._phasesets[phase] = ps |
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303 self._loadedrevslen = len(cl) |
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304 |
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305 def loadphaserevs(self, repo): |
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306 """ensure phase information is loaded in the object""" |
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307 if self._phasesets is None: |
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308 try: |
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309 res = self._getphaserevsnative(repo) |
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310 self._loadedrevslen, self._phasesets = res |
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311 except AttributeError: |
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312 self._computephaserevspure(repo) |
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313 |
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314 def invalidate(self): |
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315 self._loadedrevslen = 0 |
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316 self._phasesets = None |
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317 |
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318 def phase(self, repo, rev): |
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319 # We need a repo argument here to be able to build _phasesets |
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320 # if necessary. The repository instance is not stored in |
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321 # phasecache to avoid reference cycles. The changelog instance |
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322 # is not stored because it is a filecache() property and can |
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323 # be replaced without us being notified. |
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324 if rev == nullrev: |
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325 return public |
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326 if rev < nullrev: |
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327 raise ValueError(_('cannot lookup negative revision')) |
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328 if rev >= self._loadedrevslen: |
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329 self.invalidate() |
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330 self.loadphaserevs(repo) |
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331 for phase in trackedphases: |
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332 if rev in self._phasesets[phase]: |
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333 return phase |
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334 return public |
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335 |
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336 def write(self): |
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337 if not self.dirty: |
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338 return |
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339 f = self.opener('phaseroots', 'w', atomictemp=True, checkambig=True) |
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340 try: |
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341 self._write(f) |
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342 finally: |
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343 f.close() |
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344 |
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345 def _write(self, fp): |
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346 for phase, roots in enumerate(self.phaseroots): |
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347 for h in sorted(roots): |
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348 fp.write('%i %s\n' % (phase, hex(h))) |
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349 self.dirty = False |
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350 |
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351 def _updateroots(self, phase, newroots, tr): |
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352 self.phaseroots[phase] = newroots |
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353 self.invalidate() |
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354 self.dirty = True |
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355 |
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356 tr.addfilegenerator('phase', ('phaseroots',), self._write) |
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357 tr.hookargs['phases_moved'] = '1' |
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358 |
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359 def registernew(self, repo, tr, targetphase, nodes): |
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360 repo = repo.unfiltered() |
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361 self._retractboundary(repo, tr, targetphase, nodes) |
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362 if tr is not None and 'phases' in tr.changes: |
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363 phasetracking = tr.changes['phases'] |
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364 torev = repo.changelog.rev |
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365 phase = self.phase |
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366 for n in nodes: |
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367 rev = torev(n) |
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368 revphase = phase(repo, rev) |
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369 _trackphasechange(phasetracking, rev, None, revphase) |
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370 repo.invalidatevolatilesets() |
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371 |
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372 def advanceboundary(self, repo, tr, targetphase, nodes, dryrun=None): |
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373 """Set all 'nodes' to phase 'targetphase' |
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374 |
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375 Nodes with a phase lower than 'targetphase' are not affected. |
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376 |
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377 If dryrun is True, no actions will be performed |
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378 |
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379 Returns a set of revs whose phase is changed or should be changed |
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380 """ |
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381 # Be careful to preserve shallow-copied values: do not update |
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382 # phaseroots values, replace them. |
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383 if tr is None: |
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384 phasetracking = None |
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385 else: |
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386 phasetracking = tr.changes.get('phases') |
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387 |
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388 repo = repo.unfiltered() |
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389 |
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390 changes = set() # set of revisions to be changed |
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391 delroots = [] # set of root deleted by this path |
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392 for phase in pycompat.xrange(targetphase + 1, len(allphases)): |
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393 # filter nodes that are not in a compatible phase already |
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394 nodes = [n for n in nodes |
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395 if self.phase(repo, repo[n].rev()) >= phase] |
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396 if not nodes: |
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397 break # no roots to move anymore |
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398 |
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399 olds = self.phaseroots[phase] |
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400 |
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401 affected = repo.revs('%ln::%ln', olds, nodes) |
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402 changes.update(affected) |
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403 if dryrun: |
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404 continue |
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405 for r in affected: |
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406 _trackphasechange(phasetracking, r, self.phase(repo, r), |
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407 targetphase) |
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408 |
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409 roots = set(ctx.node() for ctx in repo.set( |
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410 'roots((%ln::) - %ld)', olds, affected)) |
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411 if olds != roots: |
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412 self._updateroots(phase, roots, tr) |
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413 # some roots may need to be declared for lower phases |
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414 delroots.extend(olds - roots) |
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415 if not dryrun: |
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416 # declare deleted root in the target phase |
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417 if targetphase != 0: |
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418 self._retractboundary(repo, tr, targetphase, delroots) |
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419 repo.invalidatevolatilesets() |
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420 return changes |
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421 |
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422 def retractboundary(self, repo, tr, targetphase, nodes): |
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423 oldroots = self.phaseroots[:targetphase + 1] |
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424 if tr is None: |
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425 phasetracking = None |
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426 else: |
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427 phasetracking = tr.changes.get('phases') |
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428 repo = repo.unfiltered() |
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429 if (self._retractboundary(repo, tr, targetphase, nodes) |
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430 and phasetracking is not None): |
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431 |
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432 # find the affected revisions |
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433 new = self.phaseroots[targetphase] |
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434 old = oldroots[targetphase] |
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435 affected = set(repo.revs('(%ln::) - (%ln::)', new, old)) |
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436 |
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437 # find the phase of the affected revision |
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438 for phase in pycompat.xrange(targetphase, -1, -1): |
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439 if phase: |
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440 roots = oldroots[phase] |
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441 revs = set(repo.revs('%ln::%ld', roots, affected)) |
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442 affected -= revs |
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443 else: # public phase |
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444 revs = affected |
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445 for r in revs: |
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446 _trackphasechange(phasetracking, r, phase, targetphase) |
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447 repo.invalidatevolatilesets() |
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448 |
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449 def _retractboundary(self, repo, tr, targetphase, nodes): |
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450 # Be careful to preserve shallow-copied values: do not update |
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451 # phaseroots values, replace them. |
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452 if targetphase in (archived, internal) and not supportinternal(repo): |
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453 name = phasenames[targetphase] |
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|
454 msg = 'this repository does not support the %s phase' % name |
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|
455 raise error.ProgrammingError(msg) |
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|
456 |
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|
457 repo = repo.unfiltered() |
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458 currentroots = self.phaseroots[targetphase] |
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459 finalroots = oldroots = set(currentroots) |
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460 newroots = [n for n in nodes |
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461 if self.phase(repo, repo[n].rev()) < targetphase] |
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462 if newroots: |
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|
463 |
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|
464 if nullid in newroots: |
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465 raise error.Abort(_('cannot change null revision phase')) |
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466 currentroots = currentroots.copy() |
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467 currentroots.update(newroots) |
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|
468 |
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469 # Only compute new roots for revs above the roots that are being |
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470 # retracted. |
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471 minnewroot = min(repo[n].rev() for n in newroots) |
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472 aboveroots = [n for n in currentroots |
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473 if repo[n].rev() >= minnewroot] |
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|
474 updatedroots = repo.set('roots(%ln::)', aboveroots) |
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475 |
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476 finalroots = set(n for n in currentroots if repo[n].rev() < |
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|
477 minnewroot) |
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478 finalroots.update(ctx.node() for ctx in updatedroots) |
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479 if finalroots != oldroots: |
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480 self._updateroots(targetphase, finalroots, tr) |
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481 return True |
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|
482 return False |
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|
483 |
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parents:
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|
484 def filterunknown(self, repo): |
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485 """remove unknown nodes from the phase boundary |
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486 |
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487 Nothing is lost as unknown nodes only hold data for their descendants. |
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488 """ |
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489 filtered = False |
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490 nodemap = repo.changelog.nodemap # to filter unknown nodes |
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|
491 for phase, nodes in enumerate(self.phaseroots): |
20550
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492 missing = sorted(node for node in nodes if node not in nodemap) |
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493 if missing: |
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|
494 for mnode in missing: |
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|
495 repo.ui.debug( |
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496 'removing unknown node %s from %i-phase boundary\n' |
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497 % (short(mnode), phase)) |
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498 nodes.symmetric_difference_update(missing) |
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|
499 filtered = True |
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500 if filtered: |
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501 self.dirty = True |
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502 # filterunknown is called by repo.destroyed, we may have no changes in |
35309
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parents:
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503 # root but _phasesets contents is certainly invalid (or at least we |
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504 # have not proper way to check that). related to issue 3858. |
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505 # |
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506 # The other caller is __init__ that have no _phasesets initialized |
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507 # anyway. If this change we should consider adding a dedicated |
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508 # "destroyed" function to phasecache or a proper cache key mechanism |
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509 # (see branchmap one) |
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|
510 self.invalidate() |
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|
511 |
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|
512 def advanceboundary(repo, tr, targetphase, nodes, dryrun=None): |
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513 """Add nodes to a phase changing other nodes phases if necessary. |
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|
514 |
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|
515 This function move boundary *forward* this means that all nodes |
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|
516 are set in the target phase or kept in a *lower* phase. |
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|
517 |
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|
518 Simplify boundary to contains phase roots only. |
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|
519 |
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|
520 If dryrun is True, no actions will be performed |
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|
521 |
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|
522 Returns a set of revs whose phase is changed or should be changed |
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|
523 """ |
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|
524 phcache = repo._phasecache.copy() |
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|
525 changes = phcache.advanceboundary(repo, tr, targetphase, nodes, |
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|
526 dryrun=dryrun) |
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|
527 if not dryrun: |
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|
528 repo._phasecache.replace(phcache) |
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|
529 return changes |
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diff
changeset
|
530 |
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|
531 def retractboundary(repo, tr, targetphase, nodes): |
16725
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|
532 """Set nodes back to a phase changing other nodes phases if |
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|
533 necessary. |
15482
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changeset
|
534 |
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changeset
|
535 This function move boundary *backward* this means that all nodes |
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phases: wrap docstrings at 70 characters
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diff
changeset
|
536 are set in the target phase or kept in a *higher* phase. |
15482
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diff
changeset
|
537 |
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changeset
|
538 Simplify boundary to contains phase roots only.""" |
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|
539 phcache = repo._phasecache.copy() |
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|
540 phcache.retractboundary(repo, tr, targetphase, nodes) |
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|
541 repo._phasecache.replace(phcache) |
15648
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diff
changeset
|
542 |
33453
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changeset
|
543 def registernew(repo, tr, targetphase, nodes): |
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|
544 """register a new revision and its phase |
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|
545 |
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changeset
|
546 Code adding revisions to the repository should use this function to |
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|
547 set new changeset in their target phase (or higher). |
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|
548 """ |
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|
549 phcache = repo._phasecache.copy() |
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|
550 phcache.registernew(repo, tr, targetphase, nodes) |
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|
551 repo._phasecache.replace(phcache) |
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|
552 |
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changeset
|
553 def listphases(repo): |
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00535da82faf
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changeset
|
554 """List phases root for serialization over pushkey""" |
32000
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
555 # Use ordered dictionary so behavior is deterministic. |
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diff
changeset
|
556 keys = util.sortdict() |
15892
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diff
changeset
|
557 value = '%i' % draft |
34816
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diff
changeset
|
558 cl = repo.unfiltered().changelog |
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changeset
|
559 for root in repo._phasecache.phaseroots[draft]: |
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|
560 if repo._phasecache.phase(repo, cl.rev(root)) <= draft: |
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changeset
|
561 keys[hex(root)] = value |
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562 |
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563 if repo.publishing(): |
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564 # Add an extra data to let remote know we are a publishing |
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565 # repo. Publishing repo can't just pretend they are old repo. |
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566 # When pushing to a publishing repo, the client still need to |
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567 # push phase boundary |
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568 # |
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569 # Push do not only push changeset. It also push phase data. |
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570 # New phase data may apply to common changeset which won't be |
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571 # push (as they are common). Here is a very simple example: |
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572 # |
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573 # 1) repo A push changeset X as draft to repo B |
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574 # 2) repo B make changeset X public |
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575 # 3) repo B push to repo A. X is not pushed but the data that |
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576 # X as now public should |
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577 # |
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578 # The server can't handle it on it's own as it has no idea of |
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579 # client phase data. |
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580 keys['publishing'] = 'True' |
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581 return keys |
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582 |
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583 def pushphase(repo, nhex, oldphasestr, newphasestr): |
17535 | 584 """List phases root for serialization over pushkey""" |
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585 repo = repo.unfiltered() |
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586 with repo.lock(): |
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587 currentphase = repo[nhex].phase() |
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588 newphase = abs(int(newphasestr)) # let's avoid negative index surprise |
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589 oldphase = abs(int(oldphasestr)) # let's avoid negative index surprise |
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590 if currentphase == oldphase and newphase < oldphase: |
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591 with repo.transaction('pushkey-phase') as tr: |
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592 advanceboundary(repo, tr, newphase, [bin(nhex)]) |
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593 return True |
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594 elif currentphase == newphase: |
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595 # raced, but got correct result |
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596 return True |
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597 else: |
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598 return False |
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599 |
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600 def subsetphaseheads(repo, subset): |
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601 """Finds the phase heads for a subset of a history |
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602 |
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603 Returns a list indexed by phase number where each item is a list of phase |
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604 head nodes. |
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605 """ |
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606 cl = repo.changelog |
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607 |
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608 headsbyphase = [[] for i in allphases] |
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609 # No need to keep track of secret phase; any heads in the subset that |
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610 # are not mentioned are implicitly secret. |
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611 for phase in allphases[:secret]: |
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612 revset = "heads(%%ln & %s())" % phasenames[phase] |
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613 headsbyphase[phase] = [cl.node(r) for r in repo.revs(revset, subset)] |
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614 return headsbyphase |
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615 |
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616 def updatephases(repo, trgetter, headsbyphase): |
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617 """Updates the repo with the given phase heads""" |
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618 # Now advance phase boundaries of all but secret phase |
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619 # |
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620 # run the update (and fetch transaction) only if there are actually things |
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621 # to update. This avoid creating empty transaction during no-op operation. |
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622 |
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623 for phase in allphases[:-1]: |
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624 revset = '%ln - _phase(%s)' |
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625 heads = [c.node() for c in repo.set(revset, headsbyphase[phase], phase)] |
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626 if heads: |
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627 advanceboundary(repo, trgetter(), phase, heads) |
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628 |
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629 def analyzeremotephases(repo, subset, roots): |
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630 """Compute phases heads and root in a subset of node from root dict |
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631 |
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632 * subset is heads of the subset |
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633 * roots is {<nodeid> => phase} mapping. key and value are string. |
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634 |
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635 Accept unknown element input |
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636 """ |
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637 repo = repo.unfiltered() |
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638 # build list from dictionary |
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639 draftroots = [] |
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640 nodemap = repo.changelog.nodemap # to filter unknown nodes |
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641 for nhex, phase in roots.iteritems(): |
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642 if nhex == 'publishing': # ignore data related to publish option |
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643 continue |
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644 node = bin(nhex) |
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645 phase = int(phase) |
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646 if phase == public: |
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647 if node != nullid: |
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648 repo.ui.warn(_('ignoring inconsistent public root' |
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649 ' from remote: %s\n') % nhex) |
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650 elif phase == draft: |
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651 if node in nodemap: |
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652 draftroots.append(node) |
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653 else: |
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654 repo.ui.warn(_('ignoring unexpected root from remote: %i %s\n') |
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655 % (phase, nhex)) |
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656 # compute heads |
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657 publicheads = newheads(repo, subset, draftroots) |
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658 return publicheads, draftroots |
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659 |
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660 class remotephasessummary(object): |
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661 """summarize phase information on the remote side |
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662 |
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663 :publishing: True is the remote is publishing |
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664 :publicheads: list of remote public phase heads (nodes) |
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665 :draftheads: list of remote draft phase heads (nodes) |
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666 :draftroots: list of remote draft phase root (nodes) |
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667 """ |
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668 |
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669 def __init__(self, repo, remotesubset, remoteroots): |
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670 unfi = repo.unfiltered() |
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671 self._allremoteroots = remoteroots |
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672 |
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673 self.publishing = remoteroots.get('publishing', False) |
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674 |
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675 ana = analyzeremotephases(repo, remotesubset, remoteroots) |
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676 self.publicheads, self.draftroots = ana |
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677 # Get the list of all "heads" revs draft on remote |
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678 dheads = unfi.set('heads(%ln::%ln)', self.draftroots, remotesubset) |
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679 self.draftheads = [c.node() for c in dheads] |
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680 |
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681 def newheads(repo, heads, roots): |
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682 """compute new head of a subset minus another |
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683 |
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684 * `heads`: define the first subset |
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685 * `roots`: define the second we subtract from the first""" |
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686 # prevent an import cycle |
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687 # phases > dagop > patch > copies > scmutil > obsolete > obsutil > phases |
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688 from . import dagop |
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689 |
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690 repo = repo.unfiltered() |
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691 cl = repo.changelog |
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692 rev = cl.nodemap.get |
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693 if not roots: |
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694 return heads |
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695 if not heads or heads == [nullid]: |
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696 return [] |
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697 # The logic operated on revisions, convert arguments early for convenience |
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698 new_heads = set(rev(n) for n in heads if n != nullid) |
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699 roots = [rev(n) for n in roots] |
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700 # compute the area we need to remove |
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701 affected_zone = repo.revs("(%ld::%ld)", roots, new_heads) |
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702 # heads in the area are no longer heads |
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703 new_heads.difference_update(affected_zone) |
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704 # revisions in the area have children outside of it, |
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705 # They might be new heads |
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706 candidates = repo.revs("parents(%ld + (%ld and merge())) and not null", |
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707 roots, affected_zone) |
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708 candidates -= affected_zone |
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709 if new_heads or candidates: |
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710 # remove candidate that are ancestors of other heads |
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711 new_heads.update(candidates) |
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712 prunestart = repo.revs("parents(%ld) and not null", new_heads) |
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713 pruned = dagop.reachableroots(repo, candidates, prunestart) |
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714 new_heads.difference_update(pruned) |
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715 |
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716 return pycompat.maplist(cl.node, sorted(new_heads)) |
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717 |
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718 def newcommitphase(ui): |
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719 """helper to get the target phase of new commit |
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720 |
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721 Handle all possible values for the phases.new-commit options. |
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722 |
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723 """ |
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724 v = ui.config('phases', 'new-commit') |
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725 try: |
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726 return phasenames.index(v) |
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727 except ValueError: |
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728 try: |
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729 return int(v) |
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730 except ValueError: |
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731 msg = _("phases.new-commit: not a valid phase name ('%s')") |
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732 raise error.ConfigError(msg % v) |
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733 |
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734 def hassecret(repo): |
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735 """utility function that check if a repo have any secret changeset.""" |
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736 return bool(repo._phasecache.phaseroots[2]) |
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737 |
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738 def preparehookargs(node, old, new): |
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739 if old is None: |
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740 old = '' |
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741 else: |
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742 old = phasenames[old] |
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743 return {'node': node, |
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744 'oldphase': old, |
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745 'phase': phasenames[new]} |