Mercurial > hg
annotate tests/test-dirstate-read-race.t @ 50237:a3b1ab5f5dee stable
dirstate: deal with read-race for pure python code
If we cannot read the dirstate data, this is probably because a writing process
wrote it under our feet. So refresh the docket and try again a handful of time.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 28 Feb 2023 19:01:20 +0100 |
parents | 385977432227 |
children | c9066fc609ef |
rev | line source |
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1 ============================================================================== |
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2 Check potential race conditions between a dirstate's read and other operations |
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3 ============================================================================== |
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4 |
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5 #testcases dirstate-v1 dirstate-v2-append dirstate-v2-rewrite |
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6 #testcases pre-all-read pre-some-read |
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7 |
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8 Some commands, like `hg status`, do not need to take the wlock but need to |
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9 access dirstate data. |
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10 Other commands might update the dirstate data while this happens. |
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11 |
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12 This can create issues if repository data is read in the wrong order, or for |
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13 the dirstate-v2 format where the data is contained in multiple files. |
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14 |
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15 This test file is meant to test various cases where such parallel operations |
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16 happen and make sure the reading process behaves fine. We do so with a `hg |
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17 status` command since it is probably the most advanced of such read-only |
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18 command. |
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19 |
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20 It bears simililarity with `tests/test-dirstate-status-race.t ` but tests a |
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21 different type of race. |
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22 |
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23 Setup |
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24 ===== |
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25 |
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26 $ cat >> $HGRCPATH << EOF |
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27 > [storage] |
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28 > dirstate-v2.slow-path=allow |
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29 > EOF |
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30 |
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31 #if no-dirstate-v1 |
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32 $ cat >> $HGRCPATH << EOF |
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33 > [format] |
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34 > use-dirstate-v2=yes |
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35 > EOF |
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36 #else |
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37 $ cat >> $HGRCPATH << EOF |
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38 > [format] |
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39 > use-dirstate-v2=no |
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40 > EOF |
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41 #endif |
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42 |
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43 #if dirstate-v2-rewrite |
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44 $ d2args="--config devel.dirstate.v2.data_update_mode=force-new" |
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45 #endif |
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46 #if dirstate-v2-append |
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47 $ d2args="--config devel.dirstate.v2.data_update_mode=force-append" |
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48 #endif |
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49 |
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50 |
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51 #if dirstate-v1 |
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52 $ cfg="devel.sync.dirstate.pre-read-file" |
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53 #else |
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54 #if pre-all-read |
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55 $ cfg="devel.sync.dirstate.pre-read-file" |
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56 #else |
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57 $ cfg="devel.sync.dirstate.post-docket-read-file" |
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58 #endif |
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59 #endif |
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60 |
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61 $ directories="dir dir/nested dir2" |
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62 $ first_files="dir/nested/a dir/b dir/c dir/d dir2/e f" |
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63 $ second_files="g dir/nested/h dir/i dir/j dir2/k dir2/l dir/nested/m" |
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64 $ extra_files="dir/n dir/o p q" |
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65 |
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66 $ hg init reference-repo |
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67 $ cd reference-repo |
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68 $ mkdir -p dir/nested dir2 |
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69 $ touch -t 200001010000 $first_files $directories |
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70 $ hg commit -Aqm "recreate a bunch of files to facilitate dirstate-v2 append" |
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71 $ touch -t 200001010010 $second_files $directories |
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72 $ hg commit -Aqm "more files to have two commit" |
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73 $ hg log -G -v |
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74 @ changeset: 1:9a86dcbfb938 |
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75 | tag: tip |
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76 | user: test |
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77 | date: Thu Jan 01 00:00:00 1970 +0000 |
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78 | files: dir/i dir/j dir/nested/h dir/nested/m dir2/k dir2/l g |
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79 | description: |
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80 | more files to have two commit |
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81 | |
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82 | |
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83 o changeset: 0:4f23db756b09 |
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84 user: test |
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85 date: Thu Jan 01 00:00:00 1970 +0000 |
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86 files: dir/b dir/c dir/d dir/nested/a dir2/e f |
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87 description: |
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88 recreate a bunch of files to facilitate dirstate-v2 append |
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89 |
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90 |
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91 $ hg manifest |
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92 dir/b |
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93 dir/c |
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94 dir/d |
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95 dir/i |
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96 dir/j |
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97 dir/nested/a |
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98 dir/nested/h |
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99 dir/nested/m |
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100 dir2/e |
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101 dir2/k |
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102 dir2/l |
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103 f |
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104 g |
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105 |
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106 Add some unknown files and refresh the dirstate |
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107 |
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108 $ touch -t 200001010020 $extra_files |
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109 $ hg add dir/o |
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110 $ hg remove dir/nested/m |
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111 |
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112 $ hg st --config devel.dirstate.v2.data_update_mode=force-new |
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113 A dir/o |
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114 R dir/nested/m |
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115 ? dir/n |
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116 ? p |
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117 ? q |
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118 $ hg debugstate |
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119 n 644 0 2000-01-01 00:00:00 dir/b |
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120 n 644 0 2000-01-01 00:00:00 dir/c |
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121 n 644 0 2000-01-01 00:00:00 dir/d |
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122 n 644 0 2000-01-01 00:10:00 dir/i |
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123 n 644 0 2000-01-01 00:10:00 dir/j |
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124 n 644 0 2000-01-01 00:00:00 dir/nested/a |
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125 n 644 0 2000-01-01 00:10:00 dir/nested/h |
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126 r ?????????????????????????????????? dir/nested/m (glob) |
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127 a ?????????????????????????????????? dir/o (glob) |
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128 n 644 0 2000-01-01 00:00:00 dir2/e |
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129 n 644 0 2000-01-01 00:10:00 dir2/k |
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130 n 644 0 2000-01-01 00:10:00 dir2/l |
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131 n 644 0 2000-01-01 00:00:00 f |
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132 n 644 0 2000-01-01 00:10:00 g |
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133 $ hg debugstate > ../reference |
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134 $ cd .. |
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135 |
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136 Actual Testing |
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137 ============== |
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138 |
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139 Race with a `hg add` |
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140 ------------------- |
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141 |
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142 $ cp -a reference-repo race-with-add |
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143 $ cd race-with-add |
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144 |
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145 spin a `hg status` with some caches to update |
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146 |
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147 $ hg st >$TESTTMP/status-race-lock.out 2>$TESTTMP/status-race-lock.log \ |
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148 > --config rhg.on-unsupported=abort \ |
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149 > --config ${cfg}=$TESTTMP/status-race-lock \ |
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150 > & |
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151 $ $RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/status-race-lock.waiting |
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152 |
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153 Add a file |
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154 |
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155 $ hg $d2args add dir/n |
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156 $ touch $TESTTMP/status-race-lock |
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157 $ wait |
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158 |
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159 The file should in a "added" state |
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160 |
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161 $ hg status |
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162 A dir/n |
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163 A dir/o |
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164 R dir/nested/m |
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165 ? p |
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166 ? q |
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167 |
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168 The status process should return a consistent result and not crash. |
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169 |
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170 #if dirstate-v1 |
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171 $ cat $TESTTMP/status-race-lock.out |
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172 A dir/n |
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173 A dir/o |
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174 R dir/nested/m |
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175 ? p |
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176 ? q |
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177 $ cat $TESTTMP/status-race-lock.log |
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178 #else |
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179 #if rhg |
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180 #if pre-all-read |
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181 $ cat $TESTTMP/status-race-lock.out |
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182 A dir/n |
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183 A dir/o |
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184 R dir/nested/m |
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185 ? p |
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186 ? q |
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187 $ cat $TESTTMP/status-race-lock.log |
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188 #else |
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189 #if dirstate-v2-append |
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190 $ cat $TESTTMP/status-race-lock.out |
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191 A dir/o |
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192 R dir/nested/m |
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193 ? dir/n |
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194 ? p |
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195 ? q |
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196 $ cat $TESTTMP/status-race-lock.log |
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197 #else |
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198 $ cat $TESTTMP/status-race-lock.out |
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199 $ cat $TESTTMP/status-race-lock.log |
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200 abort: dirstate-v2 parse error: not enough bytes on disk |
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201 #endif |
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202 #endif |
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203 #else |
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204 #if rust |
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205 #if dirstate-v2-rewrite |
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206 $ cat $TESTTMP/status-race-lock.out |
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207 $ cat $TESTTMP/status-race-lock.log |
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208 abort: $ENOENT$: '$TESTTMP/race-with-add/.hg/dirstate.* (glob) |
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209 #else |
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210 $ cat $TESTTMP/status-race-lock.out |
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211 A dir/o |
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212 R dir/nested/m |
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213 ? dir/n |
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214 ? p |
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215 ? q |
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216 $ cat $TESTTMP/status-race-lock.log |
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217 #endif |
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218 #else |
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219 $ cat $TESTTMP/status-race-lock.out |
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220 A dir/n |
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221 A dir/o |
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222 R dir/nested/m |
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223 ? p |
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224 ? q |
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225 $ cat $TESTTMP/status-race-lock.log |
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226 #endif |
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227 #endif |
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228 #endif |
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229 |
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230 final cleanup |
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231 |
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232 $ rm $TESTTMP/status-race-lock $TESTTMP/status-race-lock.waiting |
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233 $ cd .. |
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234 |
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235 Race with a `hg commit` |
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236 ----------------------- |
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237 |
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238 $ cp -a reference-repo race-with-commit |
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239 $ cd race-with-commit |
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240 |
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241 spin a `hg status with some cache to update |
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242 |
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243 $ hg st >$TESTTMP/status-race-lock.out 2>$TESTTMP/status-race-lock.log \ |
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244 > --config rhg.on-unsupported=abort \ |
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245 > --config ${cfg}=$TESTTMP/status-race-lock \ |
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246 > & |
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247 $ $RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/status-race-lock.waiting |
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248 |
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249 Add a do a commit |
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250 |
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251 $ hg status |
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252 A dir/o |
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253 R dir/nested/m |
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254 ? dir/n |
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255 ? p |
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256 ? q |
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257 $ hg $d2args commit -m 'racing commit' |
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258 $ touch $TESTTMP/status-race-lock |
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259 $ wait |
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260 |
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261 commit was created, and status is now clean |
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262 |
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263 $ hg log -GT '{node|short} {desc}\n' |
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264 @ 02a67a77ee9b racing commit |
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265 | |
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266 o 9a86dcbfb938 more files to have two commit |
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267 | |
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268 o 4f23db756b09 recreate a bunch of files to facilitate dirstate-v2 append |
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269 |
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270 $ hg status |
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271 ? dir/n |
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272 ? p |
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273 ? q |
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274 |
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275 The status process should return a consistent result and not crash. |
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276 |
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277 #if dirstate-v1 |
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278 $ cat $TESTTMP/status-race-lock.out |
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279 M dir/o (no-rhg !) |
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280 ? dir/n |
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281 ? p |
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282 ? q |
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283 $ cat $TESTTMP/status-race-lock.log |
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284 warning: ignoring unknown working parent 02a67a77ee9b! (no-rhg !) |
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285 #else |
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286 #if rhg |
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287 #if pre-all-read |
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288 $ cat $TESTTMP/status-race-lock.out |
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289 ? dir/n |
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290 ? p |
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291 ? q |
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292 $ cat $TESTTMP/status-race-lock.log |
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293 #else |
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294 #if dirstate-v2-append |
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295 $ cat $TESTTMP/status-race-lock.out |
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296 A dir/o |
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297 R dir/nested/m |
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298 ? dir/n |
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299 ? p |
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300 ? q |
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301 $ cat $TESTTMP/status-race-lock.log |
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302 #else |
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303 $ cat $TESTTMP/status-race-lock.out |
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304 $ cat $TESTTMP/status-race-lock.log |
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305 abort: dirstate-v2 parse error: not enough bytes on disk |
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306 #endif |
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307 #endif |
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308 #else |
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309 #if rust |
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310 #if dirstate-v2-rewrite |
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311 $ cat $TESTTMP/status-race-lock.out |
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312 $ cat $TESTTMP/status-race-lock.log |
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313 abort: $ENOENT$: '$TESTTMP/race-with-commit/.hg/dirstate.* (glob) |
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314 #else |
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315 $ cat $TESTTMP/status-race-lock.out |
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316 A dir/o |
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317 R dir/nested/m |
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318 ? dir/n |
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319 ? p |
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320 ? q |
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321 $ cat $TESTTMP/status-race-lock.log |
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322 #endif |
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323 #else |
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324 $ cat $TESTTMP/status-race-lock.out |
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325 M dir/o |
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326 ? dir/n |
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327 ? p |
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328 ? q |
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329 $ cat $TESTTMP/status-race-lock.log |
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330 warning: ignoring unknown working parent 02a67a77ee9b! |
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331 #endif |
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332 #endif |
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333 #endif |
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334 |
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335 final cleanup |
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336 |
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337 $ rm $TESTTMP/status-race-lock $TESTTMP/status-race-lock.waiting |
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338 $ cd .. |
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339 |
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340 Race with a `hg update` |
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341 ----------------------- |
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342 |
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343 $ cp -a reference-repo race-with-update |
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344 $ cd race-with-update |
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345 |
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346 spin a `hg status` with some caches to update |
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347 |
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348 $ hg st >$TESTTMP/status-race-lock.out 2>$TESTTMP/status-race-lock.log \ |
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349 > --config rhg.on-unsupported=abort \ |
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350 > --config ${cfg}=$TESTTMP/status-race-lock \ |
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351 > & |
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352 $ $RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/status-race-lock.waiting |
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353 do an update |
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354 |
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355 $ hg status |
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356 A dir/o |
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357 R dir/nested/m |
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358 ? dir/n |
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359 ? p |
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360 ? q |
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361 $ hg log -GT '{node|short} {desc}\n' |
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362 @ 9a86dcbfb938 more files to have two commit |
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363 | |
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364 o 4f23db756b09 recreate a bunch of files to facilitate dirstate-v2 append |
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365 |
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366 $ hg $d2args update --merge ".~1" |
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367 0 files updated, 0 files merged, 6 files removed, 0 files unresolved |
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368 $ touch $TESTTMP/status-race-lock |
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369 $ wait |
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370 #if rhg dirstate-v2-append pre-some-read |
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371 $ hg log -GT '{node|short} {desc}\n' |
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372 @ 9a86dcbfb938 more files to have two commit |
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373 | |
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374 o 4f23db756b09 recreate a bunch of files to facilitate dirstate-v2 append |
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375 |
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376 $ hg status |
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377 A dir/o |
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378 R dir/nested/m |
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379 ! dir/i |
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380 ! dir/j |
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381 ! dir/nested/h |
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382 ! dir2/k |
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383 ! dir2/l |
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384 ! g |
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385 ? dir/n |
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386 ? p |
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387 ? q |
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388 #else |
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389 $ hg log -GT '{node|short} {desc}\n' |
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390 o 9a86dcbfb938 more files to have two commit |
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391 | |
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392 @ 4f23db756b09 recreate a bunch of files to facilitate dirstate-v2 append |
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393 |
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394 $ hg status |
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395 A dir/o |
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396 ? dir/n |
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397 ? p |
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398 ? q |
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399 #endif |
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400 |
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401 The status process should return a consistent result and not crash. |
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402 |
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403 #if dirstate-v1 |
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404 $ cat $TESTTMP/status-race-lock.out |
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405 A dir/o |
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406 ? dir/n |
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407 ? p |
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408 ? q |
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409 $ cat $TESTTMP/status-race-lock.log |
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410 #else |
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411 #if rhg |
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412 #if pre-all-read |
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413 $ cat $TESTTMP/status-race-lock.out |
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414 A dir/o |
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415 ? dir/n |
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416 ? p |
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417 ? q |
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418 $ cat $TESTTMP/status-race-lock.log |
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419 #else |
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420 #if dirstate-v2-append |
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421 $ cat $TESTTMP/status-race-lock.out |
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422 A dir/o |
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423 R dir/nested/m |
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424 ! dir/i |
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425 ! dir/j |
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426 ! dir/nested/h |
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427 ! dir2/k |
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428 ! dir2/l |
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429 ! g |
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430 ? dir/n |
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431 ? p |
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432 ? q |
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433 $ cat $TESTTMP/status-race-lock.log |
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434 #else |
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435 $ cat $TESTTMP/status-race-lock.out |
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436 $ cat $TESTTMP/status-race-lock.log |
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437 abort: dirstate-v2 parse error: not enough bytes on disk |
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438 #endif |
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439 #endif |
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440 #else |
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441 #if rust |
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442 #if dirstate-v2-rewrite |
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443 $ cat $TESTTMP/status-race-lock.out |
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444 $ cat $TESTTMP/status-race-lock.log |
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445 abort: $ENOENT$: '$TESTTMP/race-with-update/.hg/dirstate.* (glob) |
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446 #else |
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447 $ cat $TESTTMP/status-race-lock.out |
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448 A dir/o |
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449 R dir/nested/m |
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450 ! dir/i |
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451 ! dir/j |
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452 ! dir/nested/h |
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453 ! dir2/k |
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454 ! dir2/l |
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455 ! g |
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456 ? dir/n |
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457 ? p |
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458 ? q |
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459 $ cat $TESTTMP/status-race-lock.log |
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460 #endif |
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461 #else |
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462 $ cat $TESTTMP/status-race-lock.out |
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463 A dir/o |
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464 ? dir/n |
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465 ? p |
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466 ? q |
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467 $ cat $TESTTMP/status-race-lock.log |
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468 #endif |
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469 #endif |
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470 #endif |
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471 |
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472 final cleanup |
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473 |
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474 $ rm $TESTTMP/status-race-lock $TESTTMP/status-race-lock.waiting |
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475 $ cd .. |
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476 |
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477 Race with a cache updating `hg status` |
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478 -------------------------------------- |
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479 |
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480 It is interesting to race with "read-only" operation (that still update its cache) |
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481 |
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482 $ cp -a reference-repo race-with-status |
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483 $ cd race-with-status |
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484 |
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485 spin a `hg status` with some caches to update |
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486 |
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487 $ hg st >$TESTTMP/status-race-lock.out 2>$TESTTMP/status-race-lock.log \ |
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488 > --config rhg.on-unsupported=abort \ |
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489 > --config ${cfg}=$TESTTMP/status-race-lock \ |
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490 > & |
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491 $ $RUNTESTDIR/testlib/wait-on-file 5 $TESTTMP/status-race-lock.waiting |
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492 do an update |
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493 |
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494 $ touch -t 200001020006 f |
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495 $ hg $d2args status |
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496 A dir/o |
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497 R dir/nested/m |
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498 ? dir/n |
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499 ? p |
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500 ? q |
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501 $ touch $TESTTMP/status-race-lock |
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502 $ wait |
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503 |
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504 The status process should return a consistent result and not crash. |
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505 |
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506 #if dirstate-v1 |
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507 $ cat $TESTTMP/status-race-lock.out |
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508 A dir/o |
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509 R dir/nested/m |
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510 ? dir/n |
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511 ? p |
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512 ? q |
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513 $ cat $TESTTMP/status-race-lock.log |
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514 #else |
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515 #if rhg |
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516 #if pre-all-read |
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517 $ cat $TESTTMP/status-race-lock.out |
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518 A dir/o |
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519 R dir/nested/m |
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520 ? dir/n |
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521 ? p |
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522 ? q |
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523 $ cat $TESTTMP/status-race-lock.log |
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524 #else |
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525 #if dirstate-v2-append |
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526 $ cat $TESTTMP/status-race-lock.out |
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527 A dir/o |
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528 R dir/nested/m |
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529 ? dir/n |
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530 ? p |
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531 ? q |
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532 $ cat $TESTTMP/status-race-lock.log |
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533 #else |
50235
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534 $ cat $TESTTMP/status-race-lock.out |
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535 $ cat $TESTTMP/status-race-lock.log |
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536 abort: dirstate-v2 parse error: not enough bytes on disk |
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537 #endif |
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538 #endif |
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539 #else |
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540 #if rust |
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541 #if dirstate-v2-rewrite |
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542 $ cat $TESTTMP/status-race-lock.out |
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543 $ cat $TESTTMP/status-race-lock.log |
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544 abort: $ENOENT$: '$TESTTMP/race-with-status/.hg/dirstate.* (glob) |
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545 #else |
50235
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546 $ cat $TESTTMP/status-race-lock.out |
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547 A dir/o |
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548 R dir/nested/m |
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549 ? dir/n |
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550 ? p |
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551 ? q |
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552 $ cat $TESTTMP/status-race-lock.log |
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553 #endif |
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554 #else |
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555 $ cat $TESTTMP/status-race-lock.out |
50237
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556 A dir/o |
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557 R dir/nested/m |
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558 ? dir/n |
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559 ? p |
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560 ? q |
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561 $ cat $TESTTMP/status-race-lock.log |
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562 #endif |
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563 #endif |
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564 #endif |
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565 |
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|
566 final cleanup |
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567 |
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568 $ rm $TESTTMP/status-race-lock $TESTTMP/status-race-lock.waiting |
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569 $ cd .. |