annotate tests/test-dirstate-race.t @ 34950:cffc8a22ce0c stable

merge with i18n
author Augie Fackler <augie@google.com>
date Wed, 01 Nov 2017 16:07:33 -0400
parents 34a8ef358c93
children 4441705b7111
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 $ hg init repo
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2 $ cd repo
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3 $ echo a > a
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4 $ hg add a
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5 $ hg commit -m test
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6
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7 Do we ever miss a sub-second change?:
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8
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9 $ for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do
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10 > hg co -qC 0
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11 > echo b > a
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12 > hg st
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13 > done
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14 M a
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15 M a
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16 M a
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17 M a
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18 M a
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19 M a
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20 M a
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21 M a
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22 M a
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23 M a
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24 M a
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25 M a
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26 M a
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27 M a
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28 M a
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29 M a
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30 M a
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31 M a
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32 M a
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33 M a
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34
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35 $ echo test > b
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36 $ mkdir dir1
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37 $ echo test > dir1/c
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38 $ echo test > d
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39
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40 $ echo test > e
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41 #if execbit
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42 A directory will typically have the execute bit -- make sure it doesn't get
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43 confused with a file with the exec bit set
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44 $ chmod +x e
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45 #endif
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46
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47 $ hg add b dir1 d e
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48 adding dir1/c (glob)
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49 $ hg commit -m test2
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50
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51 $ cat >> $TESTTMP/dirstaterace.py << EOF
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52 > from mercurial import (
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53 > context,
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54 > extensions,
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55 > )
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56 > def extsetup():
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57 > extensions.wrapfunction(context.workingctx, '_checklookup', overridechecklookup)
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58 > def overridechecklookup(orig, self, files):
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59 > # make an update that changes the dirstate from underneath
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60 > self._repo.ui.system(r"sh '$TESTTMP/dirstaterace.sh'",
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61 > cwd=self._repo.root)
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62 > return orig(self, files)
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63 > EOF
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64
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65 $ hg debugrebuilddirstate
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66 $ hg debugdirstate
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67 n 0 -1 unset a
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68 n 0 -1 unset b
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69 n 0 -1 unset d
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70 n 0 -1 unset dir1/c
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71 n 0 -1 unset e
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72
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73 XXX Note that this returns M for files that got replaced by directories. This is
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74 definitely a bug, but the fix for that is hard and the next status run is fine
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75 anyway.
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76
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77 $ cat > $TESTTMP/dirstaterace.sh <<EOF
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78 > rm b && rm -r dir1 && rm d && mkdir d && rm e && mkdir e
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79 > EOF
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80
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81 $ hg status --config extensions.dirstaterace=$TESTTMP/dirstaterace.py
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82 M d
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83 M e
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84 ! b
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85 ! dir1/c
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86 $ hg debugdirstate
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87 n 644 2 * a (glob)
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88 n 0 -1 unset b
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89 n 0 -1 unset d
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90 n 0 -1 unset dir1/c
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91 n 0 -1 unset e
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92
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93 $ hg status
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94 ! b
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95 ! d
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96 ! dir1/c
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97 ! e
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98
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99 $ rmdir d e
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100 $ hg update -C -q .
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101
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102 Test that dirstate changes aren't written out at the end of "hg
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103 status", if .hg/dirstate is already changed simultaneously before
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104 acquisition of wlock in workingctx._poststatusfixup().
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105
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106 This avoidance is important to keep consistency of dirstate in race
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107 condition (see issue5584 for detail).
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108
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109 $ hg parents -q
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110 1:* (glob)
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111
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112 $ hg debugrebuilddirstate
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113 $ hg debugdirstate
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114 n 0 -1 unset a
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115 n 0 -1 unset b
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116 n 0 -1 unset d
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117 n 0 -1 unset dir1/c
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118 n 0 -1 unset e
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119
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120 $ cat > $TESTTMP/dirstaterace.sh <<EOF
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121 > # This script assumes timetable of typical issue5584 case below:
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122 > #
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123 > # 1. "hg status" loads .hg/dirstate
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124 > # 2. "hg status" confirms clean-ness of FILE
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125 > # 3. "hg update -C 0" updates the working directory simultaneously
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126 > # (FILE is removed, and FILE is dropped from .hg/dirstate)
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127 > # 4. "hg status" acquires wlock
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128 > # (.hg/dirstate is re-loaded = no FILE entry in dirstate)
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129 > # 5. "hg status" marks FILE in dirstate as clean
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130 > # (FILE entry is added to in-memory dirstate)
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131 > # 6. "hg status" writes dirstate changes into .hg/dirstate
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132 > # (FILE entry is written into .hg/dirstate)
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133 > #
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134 > # To reproduce similar situation easily and certainly, #2 and #3
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135 > # are swapped. "hg cat" below ensures #2 on "hg status" side.
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136 >
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137 > hg update -q -C 0
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138 > hg cat -r 1 b > b
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139 > EOF
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140
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141 "hg status" below should excludes "e", of which exec flag is set, for
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142 portability of test scenario, because unsure but missing "e" is
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143 treated differently in _checklookup() according to runtime platform.
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144
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145 - "missing(!)" on POSIX, "pctx[f].cmp(self[f])" raises ENOENT
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146 - "modified(M)" on Windows, "self.flags(f) != pctx.flags(f)" is True
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147
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148 $ hg status --config extensions.dirstaterace=$TESTTMP/dirstaterace.py --debug -X path:e
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149 skip updating dirstate: identity mismatch
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150 M a
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151 ! d
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152 ! dir1/c
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153
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154 $ hg parents -q
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155 0:* (glob)
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156 $ hg files
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157 a
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158 $ hg debugdirstate
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159 n * * * a (glob)
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160
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161 $ rm b
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162
32816
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163 #if fsmonitor
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164
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165 Create fsmonitor state.
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166
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167 $ hg status
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168 $ f --type .hg/fsmonitor.state
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169 .hg/fsmonitor.state: file
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170
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171 Test that invalidating fsmonitor state in the middle (which doesn't require the
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172 wlock) causes the fsmonitor update to be skipped.
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173 hg debugrebuilddirstate ensures that the dirstaterace hook will be called, but
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174 it also invalidates the fsmonitor state. So back it up and restore it.
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175
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176 $ mv .hg/fsmonitor.state .hg/fsmonitor.state.tmp
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177 $ hg debugrebuilddirstate
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178 $ mv .hg/fsmonitor.state.tmp .hg/fsmonitor.state
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179
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180 $ cat > $TESTTMP/dirstaterace.sh <<EOF
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181 > rm .hg/fsmonitor.state
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182 > EOF
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183
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184 $ hg status --config extensions.dirstaterace=$TESTTMP/dirstaterace.py --debug
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185 skip updating fsmonitor.state: identity mismatch
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186 $ f .hg/fsmonitor.state
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187 .hg/fsmonitor.state: file not found
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188
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189 #endif
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190
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191 Set up a rebase situation for issue5581.
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192
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193 $ echo c2 > a
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194 $ echo c2 > b
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195 $ hg add b
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196 $ hg commit -m c2
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197 created new head
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198 $ echo c3 >> a
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199 $ hg commit -m c3
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200 $ hg update 2
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201 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
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202 $ echo c4 >> a
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203 $ echo c4 >> b
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204 $ hg commit -m c4
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205 created new head
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206
33577
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207 Configure a merge tool that runs status in the middle of the rebase. The goal of
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208 the status call is to trigger a potential bug if fsmonitor's state is written
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209 even though the wlock is held by another process. The output of 'hg status' in
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210 the merge tool goes to /dev/null because we're more interested in the results of
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211 'hg status' run after the rebase.
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212
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213 $ cat >> $TESTTMP/mergetool-race.sh << EOF
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214 > echo "custom merge tool"
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215 > printf "c2\nc3\nc4\n" > \$1
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216 > hg --cwd "$TESTTMP/repo" status > /dev/null
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217 > echo "custom merge tool end"
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218 > EOF
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219 $ cat >> $HGRCPATH << EOF
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220 > [extensions]
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221 > rebase =
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222 > [merge-tools]
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223 > test.executable=sh
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224 > test.args=$TESTTMP/mergetool-race.sh \$output
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225 > EOF
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226
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227 $ hg rebase -s . -d 3 --tool test
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228 rebasing 4:b08445fd6b2a "c4" (tip)
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229 merging a
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230 custom merge tool
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231 custom merge tool end
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232 saved backup bundle to $TESTTMP/repo/.hg/strip-backup/* (glob)
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233
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234 This hg status should be empty, whether or not fsmonitor is enabled (issue5581).
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235
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236 $ hg status