annotate tests/test-bookmarks-corner-case.t @ 48916:bac59722c5a3

largefiles: remove pycompat.iteritems() Differential Revision: https://phab.mercurial-scm.org/D12321
author Gregory Szorc <gregory.szorc@gmail.com>
date Tue, 01 Mar 2022 20:46:06 -0800
parents e5efbb11e185
children
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1 ================================
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2 Test corner case around bookmark
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3 ================================
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4
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5 This test file is meant to gather test around bookmark that are specific
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6 enough to not find a place elsewhere.
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7
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8 Test bookmark/changelog race condition
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9 ======================================
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10
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11 The data from the bookmark file are filtered to only contains bookmark with
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12 node known to the changelog. If the cache invalidation between these two bits
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13 goes wrong, bookmark can be dropped.
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14
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15 Setup
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16 -----
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17
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18 initial repository setup
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19
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20 $ hg init bookrace-server
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21 $ cd bookrace-server
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22 $ echo a > a
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23 $ hg add a
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24 $ hg commit -m root
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25 $ echo a >> a
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26 $ hg bookmark book-A
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27 $ hg commit -m A0
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28 $ hg up 'desc(root)'
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29 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
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30 (leaving bookmark book-A)
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31 $ echo b > b
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32 $ hg add b
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33 $ hg bookmark book-B
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34 $ hg commit -m B0
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35 created new head
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36 $ hg up null
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37 0 files updated, 0 files merged, 2 files removed, 0 files unresolved
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38 (leaving bookmark book-B)
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39 $ hg phase --public --rev 'all()'
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40 $ hg log -G
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41 o changeset: 2:c79985706978
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42 | bookmark: book-B
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43 | tag: tip
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44 | parent: 0:6569b5a81c7e
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45 | user: test
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46 | date: Thu Jan 01 00:00:00 1970 +0000
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47 | summary: B0
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48 |
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49 | o changeset: 1:39c28d785860
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50 |/ bookmark: book-A
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51 | user: test
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52 | date: Thu Jan 01 00:00:00 1970 +0000
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53 | summary: A0
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54 |
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55 o changeset: 0:6569b5a81c7e
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56 user: test
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57 date: Thu Jan 01 00:00:00 1970 +0000
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58 summary: root
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59
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60 $ hg book
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61 book-A 1:39c28d785860
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62 book-B 2:c79985706978
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63 $ cd ..
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64
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65 Add new changeset on each bookmark in distinct clones
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66
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67 $ hg clone ssh://user@dummy/bookrace-server client-A
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68 requesting all changes
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69 adding changesets
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70 adding manifests
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71 adding file changes
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72 added 3 changesets with 3 changes to 2 files (+1 heads)
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73 new changesets 6569b5a81c7e:c79985706978
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74 updating to branch default
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75 2 files updated, 0 files merged, 0 files removed, 0 files unresolved
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76 $ hg -R client-A update book-A
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77 1 files updated, 0 files merged, 1 files removed, 0 files unresolved
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78 (activating bookmark book-A)
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79 $ echo a >> client-A/a
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80 $ hg -R client-A commit -m A1
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81 $ hg clone ssh://user@dummy/bookrace-server client-B
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82 requesting all changes
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83 adding changesets
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84 adding manifests
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85 adding file changes
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86 added 3 changesets with 3 changes to 2 files (+1 heads)
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87 new changesets 6569b5a81c7e:c79985706978
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88 updating to branch default
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89 2 files updated, 0 files merged, 0 files removed, 0 files unresolved
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90 $ hg -R client-B update book-B
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91 0 files updated, 0 files merged, 0 files removed, 0 files unresolved
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92 (activating bookmark book-B)
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93 $ echo b >> client-B/b
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94 $ hg -R client-B commit -m B1
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95
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96 extension to reproduce the race
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97 -------------------------------
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98
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99 If two process are pushing we want to make sure the following happens:
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100
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101 * process A read changelog
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102 * process B to its full push
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103 * process A read bookmarks
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104 * process A proceed with rest of the push
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105
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106 We build a server side extension for this purpose
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107
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108 $ cat > bookrace.py << EOF
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109 > import atexit
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110 > import os
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111 > import time
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112 > from mercurial import bookmarks, error, extensions
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113 >
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114 > def wait(repo):
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115 > if not os.path.exists('push-A-started'):
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116 > assert repo._currentlock(repo._lockref) is None
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117 > assert repo._currentlock(repo._wlockref) is None
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118 > repo.ui.status(b'setting raced push up\n')
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119 > with open('push-A-started', 'w'):
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120 > pass
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121 > clock = 300
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122 > while not os.path.exists('push-B-done'):
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123 > clock -= 1
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124 > if clock <= 0:
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125 > raise error.Abort("race scenario timed out")
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126 > time.sleep(0.1)
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127 >
42509
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128 > def reposetup(ui, repo):
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129 > class racedrepo(repo.__class__):
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130 > @property
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131 > def _bookmarks(self):
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132 > wait(self)
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133 > return super(racedrepo, self)._bookmarks
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134 > repo.__class__ = racedrepo
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135 >
42322
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136 > def e():
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137 > with open('push-A-done', 'w'):
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138 > pass
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139 > atexit.register(e)
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140 > EOF
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141
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142 Actual test
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143 -----------
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144
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145 Start the raced push.
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146
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147 $ cat >> bookrace-server/.hg/hgrc << EOF
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148 > [extensions]
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149 > bookrace=$TESTTMP/bookrace.py
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150 > EOF
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151 $ hg push -R client-A -r book-A >push-output.txt 2>&1 &
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152
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153 Wait up to 30 seconds for that push to start.
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154
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155 $ clock=30
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156 $ while [ ! -f push-A-started ] && [ $clock -gt 0 ] ; do
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157 > clock=`expr $clock - 1`
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158 > sleep 1
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159 > done
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160
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161 Do the other push.
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162
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163 $ cat >> bookrace-server/.hg/hgrc << EOF
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164 > [extensions]
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165 > bookrace=!
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166 > EOF
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167
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168 $ hg push -R client-B -r book-B
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169 pushing to ssh://user@dummy/bookrace-server
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170 searching for changes
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171 remote: adding changesets
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172 remote: adding manifests
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173 remote: adding file changes
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174 remote: added 1 changesets with 1 changes to 1 files
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175 updating bookmark book-B
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176
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177 Signal the raced put that we are done (it waits up to 30 seconds).
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178
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179 $ touch push-B-done
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180
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181 Wait for the raced push to finish (with the remaning of the initial 30 seconds).
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182
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183 $ while [ ! -f push-A-done ] && [ $clock -gt 0 ] ; do
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184 > clock=`expr $clock - 1`
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185 > sleep 1
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186 > done
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187
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188 Check raced push output.
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189
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190 $ cat push-output.txt
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191 pushing to ssh://user@dummy/bookrace-server
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192 searching for changes
42896
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parents: 42685
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193 remote: setting raced push up
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194 remote has heads on branch 'default' that are not known locally: f26c3b5167d1
42322
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195 remote: adding changesets
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196 remote: adding manifests
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197 remote: adding file changes
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198 remote: added 1 changesets with 1 changes to 1 files
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199 updating bookmark book-A
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200
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201 Check result of the push.
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202
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203 $ hg -R bookrace-server log -G
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204 o changeset: 4:9ce3b28c16de
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205 | bookmark: book-A
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206 | tag: tip
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207 | parent: 1:39c28d785860
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208 | user: test
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209 | date: Thu Jan 01 00:00:00 1970 +0000
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210 | summary: A1
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211 |
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diff changeset
212 | o changeset: 3:f26c3b5167d1
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diff changeset
213 | | bookmark: book-B
42322
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214 | | user: test
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215 | | date: Thu Jan 01 00:00:00 1970 +0000
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diff changeset
216 | | summary: B1
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parents:
diff changeset
217 | |
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diff changeset
218 | o changeset: 2:c79985706978
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219 | | parent: 0:6569b5a81c7e
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220 | | user: test
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221 | | date: Thu Jan 01 00:00:00 1970 +0000
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parents:
diff changeset
222 | | summary: B0
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223 | |
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parents:
diff changeset
224 o | changeset: 1:39c28d785860
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diff changeset
225 |/ user: test
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226 | date: Thu Jan 01 00:00:00 1970 +0000
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parents:
diff changeset
227 | summary: A0
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228 |
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diff changeset
229 o changeset: 0:6569b5a81c7e
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230 user: test
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231 date: Thu Jan 01 00:00:00 1970 +0000
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parents:
diff changeset
232 summary: root
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233
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234 $ hg -R bookrace-server book
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parents:
diff changeset
235 book-A 4:9ce3b28c16de
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parents: 42624
diff changeset
236 book-B 3:f26c3b5167d1