Mercurial > hg
annotate mercurial/phases.py @ 45077:fa270dcbdb55
procutil: back out 8403cc54bc83 (make ....procutil.stderr unbuffered)
Changeset 8403cc54bc83 introduced code that opens a second file object
referring to the stderr file descriptor. This broke tests on Windows. The
reason is that on Windows, sys.stderr is buffered and procutil.stderr closed
the file descriptor when it got garbage collected before sys.stderr had the
chance to flush buffered data.
`procutil.stdout` had the same problem for a long time, but we didn’t realize,
as in CI test runs, stdout is not a TTY and in this case no second file object
is opened.
author | Manuel Jacob <me@manueljacob.de> |
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date | Sat, 11 Jul 2020 06:03:22 +0200 |
parents | 6232d732658c |
children | e2d17974a869 |
rev | line source |
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1 """ Mercurial phases support code |
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2 |
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3 --- |
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4 |
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5 Copyright 2011 Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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6 Logilab SA <contact@logilab.fr> |
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7 Augie Fackler <durin42@gmail.com> |
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8 |
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9 This software may be used and distributed according to the terms |
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10 of the GNU General Public License version 2 or any later version. |
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11 |
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12 --- |
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13 |
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14 This module implements most phase logic in mercurial. |
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15 |
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16 |
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17 Basic Concept |
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18 ============= |
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19 |
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20 A 'changeset phase' is an indicator that tells us how a changeset is |
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21 manipulated and communicated. The details of each phase is described |
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22 below, here we describe the properties they have in common. |
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23 |
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24 Like bookmarks, phases are not stored in history and thus are not |
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25 permanent and leave no audit trail. |
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26 |
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27 First, no changeset can be in two phases at once. Phases are ordered, |
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28 so they can be considered from lowest to highest. The default, lowest |
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29 phase is 'public' - this is the normal phase of existing changesets. A |
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30 child changeset can not be in a lower phase than its parents. |
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31 |
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32 These phases share a hierarchy of traits: |
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33 |
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34 immutable shared |
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35 public: X X |
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36 draft: X |
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37 secret: |
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38 |
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39 Local commits are draft by default. |
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40 |
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41 Phase Movement and Exchange |
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42 =========================== |
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43 |
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44 Phase data is exchanged by pushkey on pull and push. Some servers have |
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45 a publish option set, we call such a server a "publishing server". |
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46 Pushing a draft changeset to a publishing server changes the phase to |
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47 public. |
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48 |
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49 A small list of fact/rules define the exchange of phase: |
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50 |
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51 * old client never changes server states |
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52 * pull never changes server states |
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53 * publish and old server changesets are seen as public by client |
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54 * any secret changeset seen in another repository is lowered to at |
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55 least draft |
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56 |
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57 Here is the final table summing up the 49 possible use cases of phase |
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58 exchange: |
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59 |
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60 server |
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61 old publish non-publish |
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62 N X N D P N D P |
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63 old client |
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64 pull |
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65 N - X/X - X/D X/P - X/D X/P |
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66 X - X/X - X/D X/P - X/D X/P |
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67 push |
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68 X X/X X/X X/P X/P X/P X/D X/D X/P |
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69 new client |
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70 pull |
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71 N - P/X - P/D P/P - D/D P/P |
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72 D - P/X - P/D P/P - D/D P/P |
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73 P - P/X - P/D P/P - P/D P/P |
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74 push |
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75 D P/X P/X P/P P/P P/P D/D D/D P/P |
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76 P P/X P/X P/P P/P P/P P/P P/P P/P |
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77 |
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78 Legend: |
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79 |
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80 A/B = final state on client / state on server |
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81 |
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82 * N = new/not present, |
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83 * P = public, |
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84 * D = draft, |
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85 * X = not tracked (i.e., the old client or server has no internal |
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86 way of recording the phase.) |
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87 |
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88 passive = only pushes |
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89 |
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90 |
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91 A cell here can be read like this: |
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92 |
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93 "When a new client pushes a draft changeset (D) to a publishing |
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94 server where it's not present (N), it's marked public on both |
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95 sides (P/P)." |
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96 |
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97 Note: old client behave as a publishing server with draft only content |
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98 - other people see it as public |
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99 - content is pushed as draft |
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100 |
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101 """ |
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102 |
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103 from __future__ import absolute_import |
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104 |
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105 import errno |
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106 import struct |
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107 |
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108 from .i18n import _ |
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109 from .node import ( |
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110 bin, |
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111 hex, |
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112 nullid, |
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113 nullrev, |
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114 short, |
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115 wdirrev, |
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116 ) |
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117 from .pycompat import ( |
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118 getattr, |
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119 setattr, |
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120 ) |
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121 from . import ( |
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122 error, |
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123 pycompat, |
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124 smartset, |
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125 txnutil, |
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126 util, |
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127 ) |
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128 |
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129 _fphasesentry = struct.Struct(b'>i20s') |
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130 |
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131 INTERNAL_FLAG = 64 # Phases for mercurial internal usage only |
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132 HIDEABLE_FLAG = 32 # Phases that are hideable |
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133 |
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134 # record phase index |
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135 public, draft, secret = range(3) |
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136 internal = INTERNAL_FLAG | HIDEABLE_FLAG |
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137 archived = HIDEABLE_FLAG |
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138 allphases = list(range(internal + 1)) |
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139 trackedphases = allphases[1:] |
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140 # record phase names |
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141 cmdphasenames = [b'public', b'draft', b'secret'] # known to `hg phase` command |
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142 phasenames = [None] * len(allphases) |
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143 phasenames[: len(cmdphasenames)] = cmdphasenames |
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144 phasenames[archived] = b'archived' |
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145 phasenames[internal] = b'internal' |
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146 # record phase property |
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147 mutablephases = tuple(allphases[1:]) |
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148 remotehiddenphases = tuple(allphases[2:]) |
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149 localhiddenphases = tuple(p for p in allphases if p & HIDEABLE_FLAG) |
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150 |
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151 |
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152 def supportinternal(repo): |
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153 """True if the internal phase can be used on a repository""" |
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154 return b'internal-phase' in repo.requirements |
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155 |
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156 |
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157 def _readroots(repo, phasedefaults=None): |
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158 """Read phase roots from disk |
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159 |
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160 phasedefaults is a list of fn(repo, roots) callable, which are |
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161 executed if the phase roots file does not exist. When phases are |
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162 being initialized on an existing repository, this could be used to |
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163 set selected changesets phase to something else than public. |
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164 |
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165 Return (roots, dirty) where dirty is true if roots differ from |
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166 what is being stored. |
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167 """ |
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168 repo = repo.unfiltered() |
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169 dirty = False |
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170 roots = [set() for i in allphases] |
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171 try: |
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172 f, pending = txnutil.trypending(repo.root, repo.svfs, b'phaseroots') |
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173 try: |
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174 for line in f: |
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175 phase, nh = line.split() |
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176 roots[int(phase)].add(bin(nh)) |
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177 finally: |
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178 f.close() |
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179 except IOError as inst: |
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180 if inst.errno != errno.ENOENT: |
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181 raise |
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182 if phasedefaults: |
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183 for f in phasedefaults: |
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184 roots = f(repo, roots) |
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185 dirty = True |
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186 return roots, dirty |
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187 |
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188 |
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189 def binaryencode(phasemapping): |
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190 """encode a 'phase -> nodes' mapping into a binary stream |
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191 |
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192 Since phases are integer the mapping is actually a python list: |
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193 [[PUBLIC_HEADS], [DRAFTS_HEADS], [SECRET_HEADS]] |
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194 """ |
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195 binarydata = [] |
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196 for phase, nodes in enumerate(phasemapping): |
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197 for head in nodes: |
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198 binarydata.append(_fphasesentry.pack(phase, head)) |
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199 return b''.join(binarydata) |
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200 |
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201 |
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202 def binarydecode(stream): |
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203 """decode a binary stream into a 'phase -> nodes' mapping |
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204 |
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205 Since phases are integer the mapping is actually a python list.""" |
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206 headsbyphase = [[] for i in allphases] |
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207 entrysize = _fphasesentry.size |
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208 while True: |
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209 entry = stream.read(entrysize) |
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210 if len(entry) < entrysize: |
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211 if entry: |
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212 raise error.Abort(_(b'bad phase-heads stream')) |
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213 break |
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214 phase, node = _fphasesentry.unpack(entry) |
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215 headsbyphase[phase].append(node) |
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216 return headsbyphase |
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217 |
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218 |
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219 def _sortedrange_insert(data, idx, rev, t): |
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220 merge_before = False |
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221 if idx: |
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222 r1, t1 = data[idx - 1] |
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223 merge_before = r1[-1] + 1 == rev and t1 == t |
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224 merge_after = False |
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225 if idx < len(data): |
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226 r2, t2 = data[idx] |
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227 merge_after = r2[0] == rev + 1 and t2 == t |
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228 |
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229 if merge_before and merge_after: |
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230 data[idx - 1] = (pycompat.xrange(r1[0], r2[-1] + 1), t) |
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231 data.pop(idx) |
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232 elif merge_before: |
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233 data[idx - 1] = (pycompat.xrange(r1[0], rev + 1), t) |
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234 elif merge_after: |
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235 data[idx] = (pycompat.xrange(rev, r2[-1] + 1), t) |
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236 else: |
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237 data.insert(idx, (pycompat.xrange(rev, rev + 1), t)) |
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238 |
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239 |
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240 def _sortedrange_split(data, idx, rev, t): |
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241 r1, t1 = data[idx] |
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242 if t == t1: |
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243 return |
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244 t = (t1[0], t[1]) |
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245 if len(r1) == 1: |
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246 data.pop(idx) |
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247 _sortedrange_insert(data, idx, rev, t) |
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248 elif r1[0] == rev: |
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249 data[idx] = (pycompat.xrange(rev + 1, r1[-1] + 1), t1) |
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250 _sortedrange_insert(data, idx, rev, t) |
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251 elif r1[-1] == rev: |
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252 data[idx] = (pycompat.xrange(r1[0], rev), t1) |
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253 _sortedrange_insert(data, idx + 1, rev, t) |
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254 else: |
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255 data[idx : idx + 1] = [ |
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256 (pycompat.xrange(r1[0], rev), t1), |
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257 (pycompat.xrange(rev, rev + 1), t), |
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258 (pycompat.xrange(rev + 1, r1[-1] + 1), t1), |
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259 ] |
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260 |
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261 |
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262 def _trackphasechange(data, rev, old, new): |
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263 """add a phase move to the <data> list of ranges |
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264 |
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265 If data is None, nothing happens. |
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266 """ |
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267 if data is None: |
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268 return |
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269 |
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270 # If data is empty, create a one-revision range and done |
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271 if not data: |
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272 data.insert(0, (pycompat.xrange(rev, rev + 1), (old, new))) |
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273 return |
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274 |
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275 low = 0 |
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276 high = len(data) |
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277 t = (old, new) |
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278 while low < high: |
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279 mid = (low + high) // 2 |
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280 revs = data[mid][0] |
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281 |
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282 if rev in revs: |
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283 _sortedrange_split(data, mid, rev, t) |
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284 return |
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285 |
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286 if revs[0] == rev + 1: |
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287 if mid and data[mid - 1][0][-1] == rev: |
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288 _sortedrange_split(data, mid - 1, rev, t) |
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289 else: |
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290 _sortedrange_insert(data, mid, rev, t) |
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291 return |
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292 |
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293 if revs[-1] == rev - 1: |
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294 if mid + 1 < len(data) and data[mid + 1][0][0] == rev: |
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295 _sortedrange_split(data, mid + 1, rev, t) |
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296 else: |
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297 _sortedrange_insert(data, mid + 1, rev, t) |
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298 return |
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299 |
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300 if revs[0] > rev: |
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301 high = mid |
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302 else: |
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303 low = mid + 1 |
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304 |
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305 if low == len(data): |
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306 data.append((pycompat.xrange(rev, rev + 1), t)) |
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307 return |
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308 |
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309 r1, t1 = data[low] |
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310 if r1[0] > rev: |
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311 data.insert(low, (pycompat.xrange(rev, rev + 1), t)) |
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312 else: |
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313 data.insert(low + 1, (pycompat.xrange(rev, rev + 1), t)) |
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314 |
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315 |
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316 class phasecache(object): |
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317 def __init__(self, repo, phasedefaults, _load=True): |
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318 if _load: |
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319 # Cheap trick to allow shallow-copy without copy module |
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320 self.phaseroots, self.dirty = _readroots(repo, phasedefaults) |
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321 self._loadedrevslen = 0 |
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322 self._phasesets = None |
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323 self.filterunknown(repo) |
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324 self.opener = repo.svfs |
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325 |
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326 def getrevset(self, repo, phases, subset=None): |
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327 """return a smartset for the given phases""" |
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328 self.loadphaserevs(repo) # ensure phase's sets are loaded |
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329 phases = set(phases) |
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330 publicphase = public in phases |
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331 |
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332 if publicphase: |
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333 # In this case, phases keeps all the *other* phases. |
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334 phases = set(allphases).difference(phases) |
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335 if not phases: |
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336 return smartset.fullreposet(repo) |
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337 |
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338 # fast path: _phasesets contains the interesting sets, |
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339 # might only need a union and post-filtering. |
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340 revsneedscopy = False |
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341 if len(phases) == 1: |
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342 [p] = phases |
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343 revs = self._phasesets[p] |
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344 revsneedscopy = True # Don't modify _phasesets |
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345 else: |
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346 # revs has the revisions in all *other* phases. |
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347 revs = set.union(*[self._phasesets[p] for p in phases]) |
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348 |
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349 def _addwdir(wdirsubset, wdirrevs): |
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350 if wdirrev in wdirsubset and repo[None].phase() in phases: |
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351 if revsneedscopy: |
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352 wdirrevs = wdirrevs.copy() |
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353 # The working dir would never be in the # cache, but it was in |
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354 # the subset being filtered for its phase (or filtered out, |
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355 # depending on publicphase), so add it to the output to be |
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356 # included (or filtered out). |
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357 wdirrevs.add(wdirrev) |
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358 return wdirrevs |
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359 |
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360 if not publicphase: |
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361 if repo.changelog.filteredrevs: |
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362 revs = revs - repo.changelog.filteredrevs |
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363 |
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364 if subset is None: |
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365 return smartset.baseset(revs) |
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366 else: |
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367 revs = _addwdir(subset, revs) |
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368 return subset & smartset.baseset(revs) |
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369 else: |
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370 if subset is None: |
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371 subset = smartset.fullreposet(repo) |
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372 |
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373 revs = _addwdir(subset, revs) |
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374 |
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375 if not revs: |
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376 return subset |
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377 return subset.filter(lambda r: r not in revs) |
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378 |
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379 def copy(self): |
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380 # Shallow copy meant to ensure isolation in |
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381 # advance/retractboundary(), nothing more. |
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382 ph = self.__class__(None, None, _load=False) |
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383 ph.phaseroots = self.phaseroots[:] |
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384 ph.dirty = self.dirty |
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385 ph.opener = self.opener |
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386 ph._loadedrevslen = self._loadedrevslen |
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387 ph._phasesets = self._phasesets |
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388 return ph |
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389 |
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390 def replace(self, phcache): |
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391 """replace all values in 'self' with content of phcache""" |
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392 for a in ( |
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393 b'phaseroots', |
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394 b'dirty', |
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395 b'opener', |
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396 b'_loadedrevslen', |
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397 b'_phasesets', |
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398 ): |
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399 setattr(self, a, getattr(phcache, a)) |
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400 |
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401 def _getphaserevsnative(self, repo): |
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402 repo = repo.unfiltered() |
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403 nativeroots = [] |
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404 for phase in trackedphases: |
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405 nativeroots.append( |
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406 pycompat.maplist(repo.changelog.rev, self.phaseroots[phase]) |
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407 ) |
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408 return repo.changelog.computephases(nativeroots) |
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409 |
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410 def _computephaserevspure(self, repo): |
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411 repo = repo.unfiltered() |
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412 cl = repo.changelog |
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413 self._phasesets = [set() for phase in allphases] |
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414 lowerroots = set() |
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415 for phase in reversed(trackedphases): |
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416 roots = pycompat.maplist(cl.rev, self.phaseroots[phase]) |
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417 if roots: |
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418 ps = set(cl.descendants(roots)) |
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419 for root in roots: |
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420 ps.add(root) |
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421 ps.difference_update(lowerroots) |
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422 lowerroots.update(ps) |
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423 self._phasesets[phase] = ps |
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424 self._loadedrevslen = len(cl) |
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425 |
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426 def loadphaserevs(self, repo): |
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427 """ensure phase information is loaded in the object""" |
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428 if self._phasesets is None: |
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429 try: |
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430 res = self._getphaserevsnative(repo) |
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431 self._loadedrevslen, self._phasesets = res |
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432 except AttributeError: |
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433 self._computephaserevspure(repo) |
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434 |
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435 def invalidate(self): |
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436 self._loadedrevslen = 0 |
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437 self._phasesets = None |
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438 |
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439 def phase(self, repo, rev): |
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440 # We need a repo argument here to be able to build _phasesets |
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441 # if necessary. The repository instance is not stored in |
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442 # phasecache to avoid reference cycles. The changelog instance |
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443 # is not stored because it is a filecache() property and can |
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444 # be replaced without us being notified. |
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|
445 if rev == nullrev: |
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|
446 return public |
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Durham Goode <durham@fb.com>
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|
447 if rev < nullrev: |
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|
448 raise ValueError(_(b'cannot lookup negative revision')) |
35441
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449 if rev >= self._loadedrevslen: |
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450 self.invalidate() |
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451 self.loadphaserevs(repo) |
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452 for phase in trackedphases: |
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453 if rev in self._phasesets[phase]: |
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|
454 return phase |
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455 return public |
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456 |
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457 def write(self): |
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458 if not self.dirty: |
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459 return |
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460 f = self.opener(b'phaseroots', b'w', atomictemp=True, checkambig=True) |
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461 try: |
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462 self._write(f) |
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463 finally: |
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464 f.close() |
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465 |
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466 def _write(self, fp): |
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467 for phase, roots in enumerate(self.phaseroots): |
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468 for h in sorted(roots): |
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469 fp.write(b'%i %s\n' % (phase, hex(h))) |
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470 self.dirty = False |
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471 |
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472 def _updateroots(self, phase, newroots, tr): |
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473 self.phaseroots[phase] = newroots |
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474 self.invalidate() |
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475 self.dirty = True |
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476 |
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477 tr.addfilegenerator(b'phase', (b'phaseroots',), self._write) |
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478 tr.hookargs[b'phases_moved'] = b'1' |
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479 |
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480 def registernew(self, repo, tr, targetphase, nodes): |
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481 repo = repo.unfiltered() |
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482 self._retractboundary(repo, tr, targetphase, nodes) |
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483 if tr is not None and b'phases' in tr.changes: |
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484 phasetracking = tr.changes[b'phases'] |
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485 torev = repo.changelog.rev |
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486 phase = self.phase |
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487 revs = [torev(node) for node in nodes] |
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488 revs.sort() |
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489 for rev in revs: |
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490 revphase = phase(repo, rev) |
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491 _trackphasechange(phasetracking, rev, None, revphase) |
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492 repo.invalidatevolatilesets() |
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493 |
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494 def advanceboundary(self, repo, tr, targetphase, nodes, dryrun=None): |
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495 """Set all 'nodes' to phase 'targetphase' |
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496 |
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497 Nodes with a phase lower than 'targetphase' are not affected. |
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498 |
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499 If dryrun is True, no actions will be performed |
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500 |
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501 Returns a set of revs whose phase is changed or should be changed |
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502 """ |
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503 # Be careful to preserve shallow-copied values: do not update |
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504 # phaseroots values, replace them. |
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505 if tr is None: |
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|
506 phasetracking = None |
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|
507 else: |
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|
508 phasetracking = tr.changes.get(b'phases') |
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|
509 |
18002
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|
510 repo = repo.unfiltered() |
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|
511 |
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512 changes = set() # set of revisions to be changed |
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513 delroots = [] # set of root deleted by this path |
38783
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
514 for phase in pycompat.xrange(targetphase + 1, len(allphases)): |
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515 # filter nodes that are not in a compatible phase already |
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516 nodes = [ |
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517 n for n in nodes if self.phase(repo, repo[n].rev()) >= phase |
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518 ] |
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|
519 if not nodes: |
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520 break # no roots to move anymore |
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|
521 |
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|
522 olds = self.phaseroots[phase] |
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|
523 |
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|
524 affected = repo.revs(b'%ln::%ln', olds, nodes) |
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|
525 changes.update(affected) |
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|
526 if dryrun: |
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|
527 continue |
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|
528 for r in affected: |
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529 _trackphasechange( |
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|
530 phasetracking, r, self.phase(repo, r), targetphase |
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|
531 ) |
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|
532 |
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|
533 roots = { |
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534 ctx.node() |
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|
535 for ctx in repo.set(b'roots((%ln::) - %ld)', olds, affected) |
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|
536 } |
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|
537 if olds != roots: |
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diff
changeset
|
538 self._updateroots(phase, roots, tr) |
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|
539 # some roots may need to be declared for lower phases |
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|
540 delroots.extend(olds - roots) |
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|
541 if not dryrun: |
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|
542 # declare deleted root in the target phase |
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|
543 if targetphase != 0: |
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|
544 self._retractboundary(repo, tr, targetphase, delroots) |
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|
545 repo.invalidatevolatilesets() |
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changeset
|
546 return changes |
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|
547 |
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|
548 def retractboundary(self, repo, tr, targetphase, nodes): |
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549 oldroots = self.phaseroots[: targetphase + 1] |
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|
550 if tr is None: |
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|
551 phasetracking = None |
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552 else: |
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553 phasetracking = tr.changes.get(b'phases') |
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554 repo = repo.unfiltered() |
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555 if ( |
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556 self._retractboundary(repo, tr, targetphase, nodes) |
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557 and phasetracking is not None |
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558 ): |
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|
559 |
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|
560 # find the affected revisions |
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|
561 new = self.phaseroots[targetphase] |
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|
562 old = oldroots[targetphase] |
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563 affected = set(repo.revs(b'(%ln::) - (%ln::)', new, old)) |
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564 |
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565 # find the phase of the affected revision |
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566 for phase in pycompat.xrange(targetphase, -1, -1): |
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567 if phase: |
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568 roots = oldroots[phase] |
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569 revs = set(repo.revs(b'%ln::%ld', roots, affected)) |
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570 affected -= revs |
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571 else: # public phase |
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572 revs = affected |
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573 for r in sorted(revs): |
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574 _trackphasechange(phasetracking, r, phase, targetphase) |
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575 repo.invalidatevolatilesets() |
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576 |
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577 def _retractboundary(self, repo, tr, targetphase, nodes): |
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578 # Be careful to preserve shallow-copied values: do not update |
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579 # phaseroots values, replace them. |
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580 if targetphase in (archived, internal) and not supportinternal(repo): |
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581 name = phasenames[targetphase] |
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582 msg = b'this repository does not support the %s phase' % name |
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583 raise error.ProgrammingError(msg) |
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584 |
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585 repo = repo.unfiltered() |
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586 torev = repo.changelog.rev |
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587 tonode = repo.changelog.node |
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588 currentroots = {torev(node) for node in self.phaseroots[targetphase]} |
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589 finalroots = oldroots = set(currentroots) |
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590 newroots = [torev(node) for node in nodes] |
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591 newroots = [ |
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592 rev for rev in newroots if self.phase(repo, rev) < targetphase |
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593 ] |
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594 |
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595 if newroots: |
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596 if nullrev in newroots: |
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597 raise error.Abort(_(b'cannot change null revision phase')) |
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598 currentroots.update(newroots) |
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599 |
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600 # Only compute new roots for revs above the roots that are being |
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601 # retracted. |
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602 minnewroot = min(newroots) |
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603 aboveroots = [rev for rev in currentroots if rev >= minnewroot] |
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604 updatedroots = repo.revs(b'roots(%ld::)', aboveroots) |
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605 |
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606 finalroots = {rev for rev in currentroots if rev < minnewroot} |
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607 finalroots.update(updatedroots) |
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608 if finalroots != oldroots: |
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609 self._updateroots( |
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610 targetphase, {tonode(rev) for rev in finalroots}, tr |
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611 ) |
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612 return True |
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613 return False |
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614 |
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615 def filterunknown(self, repo): |
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616 """remove unknown nodes from the phase boundary |
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617 |
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618 Nothing is lost as unknown nodes only hold data for their descendants. |
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619 """ |
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620 filtered = False |
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621 has_node = repo.changelog.index.has_node # to filter unknown nodes |
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622 for phase, nodes in enumerate(self.phaseroots): |
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623 missing = sorted(node for node in nodes if not has_node(node)) |
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624 if missing: |
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625 for mnode in missing: |
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626 repo.ui.debug( |
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627 b'removing unknown node %s from %i-phase boundary\n' |
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628 % (short(mnode), phase) |
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629 ) |
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630 nodes.symmetric_difference_update(missing) |
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631 filtered = True |
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632 if filtered: |
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633 self.dirty = True |
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634 # filterunknown is called by repo.destroyed, we may have no changes in |
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635 # root but _phasesets contents is certainly invalid (or at least we |
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636 # have not proper way to check that). related to issue 3858. |
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637 # |
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638 # The other caller is __init__ that have no _phasesets initialized |
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639 # anyway. If this change we should consider adding a dedicated |
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640 # "destroyed" function to phasecache or a proper cache key mechanism |
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641 # (see branchmap one) |
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642 self.invalidate() |
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643 |
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644 |
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645 def advanceboundary(repo, tr, targetphase, nodes, dryrun=None): |
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646 """Add nodes to a phase changing other nodes phases if necessary. |
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647 |
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648 This function move boundary *forward* this means that all nodes |
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649 are set in the target phase or kept in a *lower* phase. |
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650 |
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651 Simplify boundary to contains phase roots only. |
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652 |
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653 If dryrun is True, no actions will be performed |
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654 |
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655 Returns a set of revs whose phase is changed or should be changed |
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656 """ |
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657 phcache = repo._phasecache.copy() |
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658 changes = phcache.advanceboundary( |
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659 repo, tr, targetphase, nodes, dryrun=dryrun |
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660 ) |
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661 if not dryrun: |
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662 repo._phasecache.replace(phcache) |
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663 return changes |
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664 |
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665 |
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666 def retractboundary(repo, tr, targetphase, nodes): |
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667 """Set nodes back to a phase changing other nodes phases if |
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668 necessary. |
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669 |
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670 This function move boundary *backward* this means that all nodes |
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671 are set in the target phase or kept in a *higher* phase. |
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672 |
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673 Simplify boundary to contains phase roots only.""" |
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674 phcache = repo._phasecache.copy() |
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675 phcache.retractboundary(repo, tr, targetphase, nodes) |
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676 repo._phasecache.replace(phcache) |
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677 |
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678 |
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679 def registernew(repo, tr, targetphase, nodes): |
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680 """register a new revision and its phase |
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681 |
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682 Code adding revisions to the repository should use this function to |
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683 set new changeset in their target phase (or higher). |
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684 """ |
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685 phcache = repo._phasecache.copy() |
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686 phcache.registernew(repo, tr, targetphase, nodes) |
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687 repo._phasecache.replace(phcache) |
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688 |
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689 |
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690 def listphases(repo): |
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691 """List phases root for serialization over pushkey""" |
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692 # Use ordered dictionary so behavior is deterministic. |
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693 keys = util.sortdict() |
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694 value = b'%i' % draft |
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695 cl = repo.unfiltered().changelog |
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696 for root in repo._phasecache.phaseroots[draft]: |
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697 if repo._phasecache.phase(repo, cl.rev(root)) <= draft: |
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698 keys[hex(root)] = value |
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699 |
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700 if repo.publishing(): |
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701 # Add an extra data to let remote know we are a publishing |
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702 # repo. Publishing repo can't just pretend they are old repo. |
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703 # When pushing to a publishing repo, the client still need to |
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704 # push phase boundary |
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705 # |
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706 # Push do not only push changeset. It also push phase data. |
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707 # New phase data may apply to common changeset which won't be |
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708 # push (as they are common). Here is a very simple example: |
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709 # |
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710 # 1) repo A push changeset X as draft to repo B |
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711 # 2) repo B make changeset X public |
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712 # 3) repo B push to repo A. X is not pushed but the data that |
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713 # X as now public should |
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714 # |
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715 # The server can't handle it on it's own as it has no idea of |
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716 # client phase data. |
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717 keys[b'publishing'] = b'True' |
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|
718 return keys |
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|
719 |
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720 |
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|
721 def pushphase(repo, nhex, oldphasestr, newphasestr): |
17535 | 722 """List phases root for serialization over pushkey""" |
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|
723 repo = repo.unfiltered() |
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3315a9c2019c
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Bryan O'Sullivan <bryano@fb.com>
parents:
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|
724 with repo.lock(): |
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|
725 currentphase = repo[nhex].phase() |
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726 newphase = abs(int(newphasestr)) # let's avoid negative index surprise |
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|
727 oldphase = abs(int(oldphasestr)) # let's avoid negative index surprise |
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|
728 if currentphase == oldphase and newphase < oldphase: |
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|
729 with repo.transaction(b'pushkey-phase') as tr: |
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parents:
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diff
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|
730 advanceboundary(repo, tr, newphase, [bin(nhex)]) |
32822
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|
731 return True |
16051
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Matt Mackall <mpm@selenic.com>
parents:
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|
732 elif currentphase == newphase: |
2aa5b51f310f
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parents:
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|
733 # raced, but got correct result |
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|
734 return True |
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|
735 else: |
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|
736 return False |
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|
737 |
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|
738 |
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|
739 def subsetphaseheads(repo, subset): |
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|
740 """Finds the phase heads for a subset of a history |
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|
741 |
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|
742 Returns a list indexed by phase number where each item is a list of phase |
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|
743 head nodes. |
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|
744 """ |
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|
745 cl = repo.changelog |
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|
746 |
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|
747 headsbyphase = [[] for i in allphases] |
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diff
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|
748 # No need to keep track of secret phase; any heads in the subset that |
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|
749 # are not mentioned are implicitly secret. |
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phase: explicitly exclude secret phase and above
Boris Feld <boris.feld@octobus.net>
parents:
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|
750 for phase in allphases[:secret]: |
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|
751 revset = b"heads(%%ln & %s())" % phasenames[phase] |
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|
752 headsbyphase[phase] = [cl.node(r) for r in repo.revs(revset, subset)] |
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|
753 return headsbyphase |
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|
754 |
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|
755 |
34321
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parents:
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diff
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|
756 def updatephases(repo, trgetter, headsbyphase): |
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|
757 """Updates the repo with the given phase heads""" |
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parents:
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|
758 # Now advance phase boundaries of all but secret phase |
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|
759 # |
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|
760 # run the update (and fetch transaction) only if there are actually things |
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|
761 # to update. This avoid creating empty transaction during no-op operation. |
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|
762 |
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|
763 for phase in allphases[:-1]: |
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|
764 revset = b'%ln - _phase(%s)' |
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parents:
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|
765 heads = [c.node() for c in repo.set(revset, headsbyphase[phase], phase)] |
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|
766 if heads: |
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|
767 advanceboundary(repo, trgetter(), phase, heads) |
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|
768 |
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769 |
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|
770 def analyzeremotephases(repo, subset, roots): |
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|
771 """Compute phases heads and root in a subset of node from root dict |
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|
772 |
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|
773 * subset is heads of the subset |
ca7c4254a21a
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|
774 * roots is {<nodeid> => phase} mapping. key and value are string. |
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|
775 |
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|
776 Accept unknown element input |
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diff
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|
777 """ |
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|
778 repo = repo.unfiltered() |
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|
779 # build list from dictionary |
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|
780 draftroots = [] |
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parents:
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diff
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|
781 has_node = repo.changelog.index.has_node # to filter unknown nodes |
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changeset
|
782 for nhex, phase in pycompat.iteritems(roots): |
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783 if nhex == b'publishing': # ignore data related to publish option |
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|
784 continue |
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|
785 node = bin(nhex) |
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786 phase = int(phase) |
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787 if phase == public: |
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788 if node != nullid: |
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789 repo.ui.warn( |
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790 _( |
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791 b'ignoring inconsistent public root' |
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792 b' from remote: %s\n' |
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793 ) |
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794 % nhex |
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795 ) |
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796 elif phase == draft: |
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|
797 if has_node(node): |
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798 draftroots.append(node) |
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799 else: |
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800 repo.ui.warn( |
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801 _(b'ignoring unexpected root from remote: %i %s\n') |
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802 % (phase, nhex) |
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|
803 ) |
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804 # compute heads |
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805 publicheads = newheads(repo, subset, draftroots) |
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806 return publicheads, draftroots |
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807 |
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808 |
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|
809 class remotephasessummary(object): |
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810 """summarize phase information on the remote side |
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811 |
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812 :publishing: True is the remote is publishing |
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813 :publicheads: list of remote public phase heads (nodes) |
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814 :draftheads: list of remote draft phase heads (nodes) |
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815 :draftroots: list of remote draft phase root (nodes) |
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816 """ |
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817 |
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818 def __init__(self, repo, remotesubset, remoteroots): |
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819 unfi = repo.unfiltered() |
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820 self._allremoteroots = remoteroots |
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821 |
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822 self.publishing = remoteroots.get(b'publishing', False) |
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823 |
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824 ana = analyzeremotephases(repo, remotesubset, remoteroots) |
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825 self.publicheads, self.draftroots = ana |
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826 # Get the list of all "heads" revs draft on remote |
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827 dheads = unfi.set(b'heads(%ln::%ln)', self.draftroots, remotesubset) |
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828 self.draftheads = [c.node() for c in dheads] |
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829 |
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830 |
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|
831 def newheads(repo, heads, roots): |
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832 """compute new head of a subset minus another |
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833 |
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|
834 * `heads`: define the first subset |
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Mads Kiilerich <mads@kiilerich.com>
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|
835 * `roots`: define the second we subtract from the first""" |
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836 # prevent an import cycle |
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837 # phases > dagop > patch > copies > scmutil > obsolete > obsutil > phases |
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838 from . import dagop |
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839 |
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|
840 repo = repo.unfiltered() |
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|
841 cl = repo.changelog |
43556
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842 rev = cl.index.get_rev |
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843 if not roots: |
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|
844 return heads |
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|
845 if not heads or heads == [nullid]: |
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846 return [] |
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847 # The logic operated on revisions, convert arguments early for convenience |
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|
848 new_heads = {rev(n) for n in heads if n != nullid} |
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849 roots = [rev(n) for n in roots] |
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850 # compute the area we need to remove |
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851 affected_zone = repo.revs(b"(%ld::%ld)", roots, new_heads) |
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852 # heads in the area are no longer heads |
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|
853 new_heads.difference_update(affected_zone) |
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|
854 # revisions in the area have children outside of it, |
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855 # They might be new heads |
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856 candidates = repo.revs( |
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|
857 b"parents(%ld + (%ld and merge())) and not null", roots, affected_zone |
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|
858 ) |
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|
859 candidates -= affected_zone |
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|
860 if new_heads or candidates: |
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|
861 # remove candidate that are ancestors of other heads |
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|
862 new_heads.update(candidates) |
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863 prunestart = repo.revs(b"parents(%ld) and not null", new_heads) |
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864 pruned = dagop.reachableroots(repo, candidates, prunestart) |
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|
865 new_heads.difference_update(pruned) |
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|
866 |
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|
867 return pycompat.maplist(cl.node, sorted(new_heads)) |
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868 |
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869 |
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|
870 def newcommitphase(ui): |
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|
871 """helper to get the target phase of new commit |
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|
872 |
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|
873 Handle all possible values for the phases.new-commit options. |
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|
874 |
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|
875 """ |
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876 v = ui.config(b'phases', b'new-commit') |
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|
877 try: |
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|
878 return phasenames.index(v) |
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|
879 except ValueError: |
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880 try: |
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881 return int(v) |
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882 except ValueError: |
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883 msg = _(b"phases.new-commit: not a valid phase name ('%s')") |
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|
884 raise error.ConfigError(msg % v) |
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885 |
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886 |
17671
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|
887 def hassecret(repo): |
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|
888 """utility function that check if a repo have any secret changeset.""" |
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Joerg Sonnenberger <joerg@bec.de>
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|
889 return bool(repo._phasecache.phaseroots[secret]) |
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890 |
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891 |
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|
892 def preparehookargs(node, old, new): |
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893 if old is None: |
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894 old = b'' |
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|
895 else: |
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|
896 old = phasenames[old] |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
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897 return {b'node': node, b'oldphase': old, b'phase': phasenames[new]} |