Mercurial > hg
annotate tests/test-dirstate-race.t @ 48520:791f5d5f7a96
hg-core: dedup LazyAncestors Iterator impl
… Which has been moved to the vcsgraph crate.
AncestorsIterator cannot yet be removed because it is still being used in
hg-core.
Differential Revision: https://phab.mercurial-scm.org/D11948
author | pacien <pacien.trangirard@pacien.net> |
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date | Fri, 10 Dec 2021 16:25:02 +0100 |
parents | 322525db4c98 |
children | e845537f6adb |
rev | line source |
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1 #testcases dirstate-v1 dirstate-v2 |
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2 |
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3 #if dirstate-v2 |
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4 $ cat >> $HGRCPATH << EOF |
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5 > [format] |
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6 > exp-rc-dirstate-v2=1 |
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7 > [storage] |
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8 > dirstate-v2.slow-path=allow |
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9 > EOF |
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10 #endif |
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11 |
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12 $ hg init repo |
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13 $ cd repo |
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15 $ hg add a | |
16 $ hg commit -m test | |
17 | |
18 Do we ever miss a sub-second change?: | |
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19 |
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21 > hg update -qC 0 |
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23 > hg st | |
24 > done | |
25 M a | |
26 M a | |
27 M a | |
28 M a | |
29 M a | |
30 M a | |
31 M a | |
32 M a | |
33 M a | |
34 M a | |
35 M a | |
36 M a | |
37 M a | |
38 M a | |
39 M a | |
40 M a | |
41 M a | |
42 M a | |
43 M a | |
44 M a | |
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45 |
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46 $ echo test > b |
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47 $ mkdir dir1 |
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48 $ echo test > dir1/c |
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49 $ echo test > d |
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50 |
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51 $ echo test > e |
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52 #if execbit |
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53 A directory will typically have the execute bit -- make sure it doesn't get |
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54 confused with a file with the exec bit set |
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55 $ chmod +x e |
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56 #endif |
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57 |
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58 $ hg add b dir1 d e |
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59 adding dir1/c |
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60 $ hg commit -m test2 |
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61 |
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62 $ cat >> $TESTTMP/dirstaterace.py << EOF |
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63 > from mercurial import ( |
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64 > context, |
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65 > extensions, |
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66 > ) |
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67 > def extsetup(ui): |
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68 > extensions.wrapfunction(context.workingctx, '_checklookup', overridechecklookup) |
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69 > def overridechecklookup(orig, self, *args, **kwargs): |
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70 > # make an update that changes the dirstate from underneath |
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71 > self._repo.ui.system(br"sh '$TESTTMP/dirstaterace.sh'", |
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72 > cwd=self._repo.root) |
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73 > return orig(self, *args, **kwargs) |
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74 > EOF |
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75 |
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76 $ hg debugrebuilddirstate |
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77 $ hg debugdirstate |
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78 n 0 -1 unset a |
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79 n 0 -1 unset b |
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80 n 0 -1 unset d |
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81 n 0 -1 unset dir1/c |
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82 n 0 -1 unset e |
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83 |
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84 XXX Note that this returns M for files that got replaced by directories. This is |
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85 definitely a bug, but the fix for that is hard and the next status run is fine |
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86 anyway. |
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87 |
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88 $ cat > $TESTTMP/dirstaterace.sh <<EOF |
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89 > rm b && rm -r dir1 && rm d && mkdir d && rm e && mkdir e |
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90 > EOF |
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91 |
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92 $ sleep 1 # ensure non-ambiguous mtime |
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93 $ hg status --config extensions.dirstaterace=$TESTTMP/dirstaterace.py |
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94 M d |
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95 M e |
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96 ! b |
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97 ! dir1/c |
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98 $ hg debugdirstate |
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99 n 644 2 * a (glob) |
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100 n 0 -1 unset b |
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101 n 0 -1 unset d |
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102 n 0 -1 unset dir1/c |
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103 n 0 -1 unset e |
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104 |
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105 $ hg status |
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106 ! b |
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107 ! d |
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108 ! dir1/c |
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109 ! e |
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110 |
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111 $ rmdir d e |
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112 $ hg update -C -q . |
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113 |
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114 Test that dirstate changes aren't written out at the end of "hg |
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115 status", if .hg/dirstate is already changed simultaneously before |
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116 acquisition of wlock in workingctx._poststatusfixup(). |
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117 |
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118 This avoidance is important to keep consistency of dirstate in race |
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119 condition (see issue5584 for detail). |
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120 |
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121 $ hg parents -q |
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122 1:* (glob) |
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123 |
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124 $ hg debugrebuilddirstate |
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125 $ hg debugdirstate |
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126 n 0 -1 unset a |
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127 n 0 -1 unset b |
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128 n 0 -1 unset d |
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129 n 0 -1 unset dir1/c |
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130 n 0 -1 unset e |
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131 |
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132 $ cat > $TESTTMP/dirstaterace.sh <<EOF |
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133 > # This script assumes timetable of typical issue5584 case below: |
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134 > # |
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135 > # 1. "hg status" loads .hg/dirstate |
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136 > # 2. "hg status" confirms clean-ness of FILE |
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137 > # 3. "hg update -C 0" updates the working directory simultaneously |
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138 > # (FILE is removed, and FILE is dropped from .hg/dirstate) |
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139 > # 4. "hg status" acquires wlock |
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140 > # (.hg/dirstate is re-loaded = no FILE entry in dirstate) |
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141 > # 5. "hg status" marks FILE in dirstate as clean |
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142 > # (FILE entry is added to in-memory dirstate) |
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143 > # 6. "hg status" writes dirstate changes into .hg/dirstate |
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144 > # (FILE entry is written into .hg/dirstate) |
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145 > # |
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146 > # To reproduce similar situation easily and certainly, #2 and #3 |
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147 > # are swapped. "hg cat" below ensures #2 on "hg status" side. |
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148 > |
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149 > hg update -q -C 0 |
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150 > hg cat -r 1 b > b |
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151 > # make sure the timestamps is not ambiguous and a write will be issued |
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152 > touch -t 198606251012 b |
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153 > EOF |
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154 |
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155 "hg status" below should excludes "e", of which exec flag is set, for |
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156 portability of test scenario, because unsure but missing "e" is |
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157 treated differently in _checklookup() according to runtime platform. |
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158 |
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159 - "missing(!)" on POSIX, "pctx[f].cmp(self[f])" raises ENOENT |
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160 - "modified(M)" on Windows, "self.flags(f) != pctx.flags(f)" is True |
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161 |
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162 $ hg status --config extensions.dirstaterace=$TESTTMP/dirstaterace.py --debug -X path:e |
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163 skip updating dirstate: identity mismatch |
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164 M a |
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165 ! d |
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166 ! dir1/c |
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167 |
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168 $ hg parents -q |
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169 0:* (glob) |
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170 $ hg files |
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171 a |
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172 $ hg debugdirstate |
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173 n * * * a (glob) |
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174 |
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175 $ rm b |
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176 |
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177 #if fsmonitor |
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178 |
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179 Create fsmonitor state. |
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180 |
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181 $ hg status |
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182 $ f --type .hg/fsmonitor.state |
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183 .hg/fsmonitor.state: file |
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184 |
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185 Test that invalidating fsmonitor state in the middle (which doesn't require the |
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186 wlock) causes the fsmonitor update to be skipped. |
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187 hg debugrebuilddirstate ensures that the dirstaterace hook will be called, but |
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188 it also invalidates the fsmonitor state. So back it up and restore it. |
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189 |
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190 $ mv .hg/fsmonitor.state .hg/fsmonitor.state.tmp |
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191 $ hg debugrebuilddirstate |
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192 $ mv .hg/fsmonitor.state.tmp .hg/fsmonitor.state |
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193 |
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194 $ cat > $TESTTMP/dirstaterace.sh <<EOF |
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195 > rm .hg/fsmonitor.state |
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196 > EOF |
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197 |
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198 $ hg status --config extensions.dirstaterace=$TESTTMP/dirstaterace.py --debug |
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199 skip updating fsmonitor.state: identity mismatch |
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200 $ f .hg/fsmonitor.state |
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201 .hg/fsmonitor.state: file not found |
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202 |
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203 #endif |
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204 |
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205 Set up a rebase situation for issue5581. |
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206 |
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207 $ echo c2 > a |
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208 $ echo c2 > b |
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209 $ hg add b |
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210 $ hg commit -m c2 |
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211 created new head |
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212 $ echo c3 >> a |
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213 $ hg commit -m c3 |
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214 $ hg update 2 |
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215 1 files updated, 0 files merged, 0 files removed, 0 files unresolved |
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216 $ echo c4 >> a |
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217 $ echo c4 >> b |
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218 $ hg commit -m c4 |
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219 created new head |
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220 |
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221 Configure a merge tool that runs status in the middle of the rebase. The goal of |
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222 the status call is to trigger a potential bug if fsmonitor's state is written |
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223 even though the wlock is held by another process. The output of 'hg status' in |
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224 the merge tool goes to /dev/null because we're more interested in the results of |
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225 'hg status' run after the rebase. |
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226 |
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227 $ cat >> $TESTTMP/mergetool-race.sh << EOF |
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228 > echo "custom merge tool" |
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229 > printf "c2\nc3\nc4\n" > \$1 |
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230 > hg --cwd "$TESTTMP/repo" status > /dev/null |
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231 > echo "custom merge tool end" |
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232 > EOF |
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233 $ cat >> $HGRCPATH << EOF |
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234 > [extensions] |
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235 > rebase = |
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236 > [merge-tools] |
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237 > test.executable=sh |
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238 > test.args=$TESTTMP/mergetool-race.sh \$output |
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239 > EOF |
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240 |
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241 $ hg rebase -s . -d 3 --tool test |
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242 rebasing 4:b08445fd6b2a tip "c4" |
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243 merging a |
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244 custom merge tool |
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245 custom merge tool end |
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246 saved backup bundle to $TESTTMP/repo/.hg/strip-backup/* (glob) |
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247 |
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248 This hg status should be empty, whether or not fsmonitor is enabled (issue5581). |
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249 |
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250 $ hg status |