Mercurial > hg
annotate tests/test-fncache.t @ 23786:7d63398fbfd1
branchmap: use revbranchcache when updating branch map
The revbranchcache is read on demand before it will be used for updating the
branch map. It is written back when the branchmap is written and it will thus
use the same locking as branchmap. The revbranchcache instance is short-lived;
it is only stored in the branchmap from .update() is invoked and until .write()
is invoked. Branchmap already assume that the repo is locked in that case.
The use of revbranchcache for branch map updates will make sure that the
revbranchcache "always" is kept up-to-date.
The perfbranchmap benchmark is somewhat bogus, especially when we can see that
the caching makes a significant difference between the realistic case of a
first run and the rare case of rerunning it with a full cache. Here are some
'base' numbers on mozilla-central:
Before:
! wall 6.912745 comb 6.910000 user 6.840000 sys 0.070000 (best of 3)
After - initial, cache is empty:
! wall 7.792569 comb 7.790000 user 7.720000 sys 0.070000 (best of 3)
After - cache is full:
! wall 0.879688 comb 0.880000 user 0.870000 sys 0.010000 (best of 4)
The overhead when running with empty cache comes from checking, missing and
updating it every time.
Most of the performance improvement comes from not having to extract the branch
info from the changelog. The last doubling of performance comes from no longer
having to convert all branch names to local encoding but reuse the few already
converted branch names.
On the hg repo:
Before:
! wall 0.715703 comb 0.710000 user 0.710000 sys 0.000000 (best of 14)
After:
! wall 0.105489 comb 0.110000 user 0.110000 sys 0.000000 (best of 87)
author | Mads Kiilerich <madski@unity3d.com> |
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date | Thu, 08 Jan 2015 00:01:03 +0100 |
parents | 0ff6b65afeb0 |
children | d251da5e0e84 |
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1 Init repo1: |
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3 $ hg init repo1 |
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4 $ cd repo1 |
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5 $ echo "some text" > a |
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6 $ hg add |
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7 adding a |
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8 $ hg ci -m first |
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9 $ cat .hg/store/fncache | sort |
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10 data/a.i |
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12 Testing a.i/b: |
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14 $ mkdir a.i |
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15 $ echo "some other text" > a.i/b |
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16 $ hg add |
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17 adding a.i/b (glob) |
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18 $ hg ci -m second |
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19 $ cat .hg/store/fncache | sort |
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20 data/a.i |
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21 data/a.i.hg/b.i |
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23 Testing a.i.hg/c: |
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25 $ mkdir a.i.hg |
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26 $ echo "yet another text" > a.i.hg/c |
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27 $ hg add |
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28 adding a.i.hg/c (glob) |
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29 $ hg ci -m third |
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30 $ cat .hg/store/fncache | sort |
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31 data/a.i |
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32 data/a.i.hg.hg/c.i |
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33 data/a.i.hg/b.i |
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35 Testing verify: |
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36 |
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37 $ hg verify |
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38 checking changesets |
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39 checking manifests |
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40 crosschecking files in changesets and manifests |
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41 checking files |
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42 3 files, 3 changesets, 3 total revisions |
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43 |
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44 $ rm .hg/store/fncache |
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46 $ hg verify |
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47 checking changesets |
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48 checking manifests |
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49 crosschecking files in changesets and manifests |
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50 checking files |
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51 data/a.i@0: missing revlog! |
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52 data/a.i.hg/c.i@2: missing revlog! |
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53 data/a.i/b.i@1: missing revlog! |
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54 3 files, 3 changesets, 3 total revisions |
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55 3 integrity errors encountered! |
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56 (first damaged changeset appears to be 0) |
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57 [1] |
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58 $ cd .. |
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60 Non store repo: |
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62 $ hg --config format.usestore=False init foo |
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63 $ cd foo |
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64 $ mkdir tst.d |
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65 $ echo foo > tst.d/foo |
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66 $ hg ci -Amfoo |
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67 adding tst.d/foo |
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68 $ find .hg | sort |
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69 .hg |
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70 .hg/00changelog.i |
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71 .hg/00manifest.i |
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72 .hg/cache |
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73 .hg/cache/branch2-served |
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74 .hg/cache/rbc-names-v1 |
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75 .hg/cache/rbc-revs-v1 |
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76 .hg/data |
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77 .hg/data/tst.d.hg |
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78 .hg/data/tst.d.hg/foo.i |
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79 .hg/dirstate |
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80 .hg/last-message.txt |
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81 .hg/phaseroots |
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82 .hg/requires |
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83 .hg/undo |
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84 .hg/undo.bookmarks |
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85 .hg/undo.branch |
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86 .hg/undo.desc |
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87 .hg/undo.dirstate |
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88 .hg/undo.phaseroots |
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89 $ cd .. |
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90 |
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91 Non fncache repo: |
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92 |
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93 $ hg --config format.usefncache=False init bar |
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94 $ cd bar |
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95 $ mkdir tst.d |
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96 $ echo foo > tst.d/Foo |
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97 $ hg ci -Amfoo |
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98 adding tst.d/Foo |
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99 $ find .hg | sort |
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100 .hg |
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101 .hg/00changelog.i |
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102 .hg/cache |
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103 .hg/cache/branch2-served |
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104 .hg/cache/rbc-names-v1 |
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105 .hg/cache/rbc-revs-v1 |
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106 .hg/dirstate |
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107 .hg/last-message.txt |
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108 .hg/requires |
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109 .hg/store |
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110 .hg/store/00changelog.i |
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111 .hg/store/00manifest.i |
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112 .hg/store/data |
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113 .hg/store/data/tst.d.hg |
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114 .hg/store/data/tst.d.hg/_foo.i |
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115 .hg/store/phaseroots |
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116 .hg/store/undo |
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117 .hg/store/undo.phaseroots |
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118 .hg/undo.bookmarks |
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119 .hg/undo.branch |
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120 .hg/undo.desc |
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121 .hg/undo.dirstate |
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122 $ cd .. |
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123 |
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124 Encoding of reserved / long paths in the store |
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125 |
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126 $ hg init r2 |
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127 $ cd r2 |
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128 $ cat <<EOF > .hg/hgrc |
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129 > [ui] |
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130 > portablefilenames = ignore |
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131 > EOF |
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132 |
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133 $ hg import -q --bypass - <<EOF |
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134 > # HG changeset patch |
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135 > # User test |
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136 > # Date 0 0 |
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137 > # Node ID 1c7a2f7cb77be1a0def34e4c7cabc562ad98fbd7 |
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138 > # Parent 0000000000000000000000000000000000000000 |
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139 > 1 |
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140 > |
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141 > diff --git a/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz b/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz |
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142 > new file mode 100644 |
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143 > --- /dev/null |
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144 > +++ b/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxxxxx-xxxxxxxxx-xxxxxxxxx-123456789-12.3456789-12345-ABCDEFGHIJKLMNOPRSTUVWXYZ-abcdefghjiklmnopqrstuvwxyz |
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145 > @@ -0,0 +1,1 @@ |
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146 > +foo |
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147 > diff --git a/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT b/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT |
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148 > new file mode 100644 |
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149 > --- /dev/null |
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150 > +++ b/AUX/SECOND/X.PRN/FOURTH/FI:FTH/SIXTH/SEVENTH/EIGHTH/NINETH/TENTH/ELEVENTH/LOREMIPSUM.TXT |
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151 > @@ -0,0 +1,1 @@ |
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152 > +foo |
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153 > diff --git a/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt b/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt |
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154 > new file mode 100644 |
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155 > --- /dev/null |
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156 > +++ b/Project Planning/Resources/AnotherLongDirectoryName/Followedbyanother/AndAnother/AndThenAnExtremelyLongFileName.txt |
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157 > @@ -0,0 +1,1 @@ |
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158 > +foo |
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159 > diff --git a/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c b/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c |
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160 > new file mode 100644 |
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161 > --- /dev/null |
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162 > +++ b/bla.aux/prn/PRN/lpt/com3/nul/coma/foo.NUL/normal.c |
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163 > @@ -0,0 +1,1 @@ |
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164 > +foo |
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165 > diff --git a/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider b/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider |
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166 > new file mode 100644 |
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167 > --- /dev/null |
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168 > +++ b/enterprise/openesbaddons/contrib-imola/corba-bc/netbeansplugin/wsdlExtension/src/main/java/META-INF/services/org.netbeans.modules.xml.wsdl.bindingsupport.spi.ExtensibilityElementTemplateProvider |
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169 > @@ -0,0 +1,1 @@ |
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170 > +foo |
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171 > EOF |
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172 |
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173 $ find .hg/store -name *.i | sort |
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174 .hg/store/00changelog.i |
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175 .hg/store/00manifest.i |
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176 .hg/store/data/bla.aux/pr~6e/_p_r_n/lpt/co~6d3/nu~6c/coma/foo._n_u_l/normal.c.i |
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177 .hg/store/dh/12345678/12345678/12345678/12345678/12345678/12345678/12345678/12345/xxxxxx168e07b38e65eff86ab579afaaa8e30bfbe0f35f.i |
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178 .hg/store/dh/au~78/second/x.prn/fourth/fi~3afth/sixth/seventh/eighth/nineth/tenth/loremia20419e358ddff1bf8751e38288aff1d7c32ec05.i |
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179 .hg/store/dh/enterpri/openesba/contrib-/corba-bc/netbeans/wsdlexte/src/main/java/org.net7018f27961fdf338a598a40c4683429e7ffb9743.i |
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180 .hg/store/dh/project_/resource/anotherl/followed/andanoth/andthenanextremelylongfilename0d8e1f4187c650e2f1fdca9fd90f786bc0976b6b.i |
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181 |
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182 $ cd .. |
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183 |
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184 Aborting lock does not prevent fncache writes |
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185 |
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186 $ cat > exceptionext.py <<EOF |
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187 > import os |
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188 > from mercurial import commands, util |
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189 > from mercurial.extensions import wrapfunction |
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190 > |
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191 > def lockexception(orig, vfs, lockname, wait, releasefn, acquirefn, desc): |
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192 > def releasewrap(): |
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193 > raise util.Abort("forced lock failure") |
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194 > return orig(vfs, lockname, wait, releasewrap, acquirefn, desc) |
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195 > |
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196 > def reposetup(ui, repo): |
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197 > wrapfunction(repo, '_lock', lockexception) |
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198 > |
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199 > cmdtable = {} |
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200 > |
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201 > EOF |
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202 $ extpath=`pwd`/exceptionext.py |
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203 $ hg init fncachetxn |
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204 $ cd fncachetxn |
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205 $ printf "[extensions]\nexceptionext=$extpath\n" >> .hg/hgrc |
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206 $ touch y |
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207 $ hg ci -qAm y |
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208 abort: forced lock failure |
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209 [255] |
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210 $ cat .hg/store/fncache |
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211 data/y.i |
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212 |
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213 Aborting transaction prevents fncache change |
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214 |
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215 $ cat > ../exceptionext.py <<EOF |
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216 > import os |
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217 > from mercurial import commands, util, localrepo |
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218 > from mercurial.extensions import wrapfunction |
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219 > |
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220 > def wrapper(orig, self, *args, **kwargs): |
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221 > tr = orig(self, *args, **kwargs) |
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222 > def fail(tr): |
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223 > raise util.Abort("forced transaction failure") |
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224 > # zzz prefix to ensure it sorted after store.write |
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225 > tr.addfinalize('zzz-forcefails', fail) |
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226 > return tr |
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227 > |
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228 > def uisetup(ui): |
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229 > wrapfunction(localrepo.localrepository, 'transaction', wrapper) |
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230 > |
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231 > cmdtable = {} |
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232 > |
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233 > EOF |
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234 $ rm -f "${extpath}c" |
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235 $ touch z |
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236 $ hg ci -qAm z |
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237 transaction abort! |
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238 rollback completed |
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239 abort: forced transaction failure |
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240 [255] |
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241 $ cat .hg/store/fncache |
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242 data/y.i |
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243 |
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244 Aborted transactions can be recovered later |
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245 |
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246 $ cat > ../exceptionext.py <<EOF |
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247 > import os |
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248 > from mercurial import commands, util, transaction, localrepo |
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249 > from mercurial.extensions import wrapfunction |
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250 > |
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251 > def trwrapper(orig, self, *args, **kwargs): |
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252 > tr = orig(self, *args, **kwargs) |
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253 > def fail(tr): |
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254 > raise util.Abort("forced transaction failure") |
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255 > # zzz prefix to ensure it sorted after store.write |
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256 > tr.addfinalize('zzz-forcefails', fail) |
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257 > return tr |
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258 > |
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259 > def abortwrapper(orig, self, *args, **kwargs): |
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260 > raise util.Abort("forced transaction failure") |
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261 > |
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262 > def uisetup(ui): |
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263 > wrapfunction(localrepo.localrepository, 'transaction', trwrapper) |
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264 > wrapfunction(transaction.transaction, '_abort', abortwrapper) |
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265 > |
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266 > cmdtable = {} |
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267 > |
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268 > EOF |
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269 $ rm -f "${extpath}c" |
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270 $ hg up -q 1 |
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271 $ touch z |
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272 $ hg ci -qAm z 2>/dev/null |
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273 [255] |
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274 $ cat .hg/store/fncache | sort |
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275 data/y.i |
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276 data/z.i |
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277 $ hg recover |
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278 rolling back interrupted transaction |
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279 checking changesets |
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280 checking manifests |
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281 crosschecking files in changesets and manifests |
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282 checking files |
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283 1 files, 1 changesets, 1 total revisions |
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284 $ cat .hg/store/fncache |
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285 data/y.i |