Mercurial > hg
annotate tests/test-fastannotate-protocol.t @ 47072:4c041c71ec01
revlog: introduce an explicit tracking of what the revlog is about
Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.
In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.
So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.
The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.
Differential Revision: https://phab.mercurial-scm.org/D10352
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 06 Apr 2021 05:20:24 +0200 |
parents | 7116fc614cfc |
children | 9c4204b7f3e4 |
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1 $ cat >> $HGRCPATH << EOF |
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2 > [ui] |
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3 > ssh = "$PYTHON" "$TESTDIR/dummyssh" |
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4 > [extensions] |
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5 > fastannotate= |
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6 > [fastannotate] |
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7 > mainbranch=@ |
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8 > EOF |
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9 |
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10 setup the server repo |
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11 |
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12 $ hg init repo-server |
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13 $ cd repo-server |
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14 $ cat >> .hg/hgrc << EOF |
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15 > [fastannotate] |
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16 > server=1 |
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17 > EOF |
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18 $ for i in 1 2 3 4; do |
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19 > echo $i >> a |
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20 > hg commit -A -m $i a |
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21 > done |
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22 $ [ -d .hg/fastannotate ] |
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23 [1] |
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24 $ hg bookmark @ |
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25 $ cd .. |
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26 |
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27 setup the local repo |
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28 |
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29 $ hg clone 'ssh://user@dummy/repo-server' repo-local -q |
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30 $ cd repo-local |
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31 $ cat >> .hg/hgrc << EOF |
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32 > [fastannotate] |
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33 > client=1 |
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34 > clientfetchthreshold=0 |
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35 > EOF |
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36 $ [ -d .hg/fastannotate ] |
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37 [1] |
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38 $ hg fastannotate a --debug |
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39 running * (glob) |
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40 sending hello command |
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41 sending between command |
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42 remote: * (glob) (?) |
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43 remote: capabilities: * (glob) |
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44 remote: * (glob) (?) |
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45 sending protocaps command |
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46 fastannotate: requesting 1 files |
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47 sending getannotate command |
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48 fastannotate: writing 112 bytes to fastannotate/default/a.l |
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49 fastannotate: writing 94 bytes to fastannotate/default/a.m |
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50 fastannotate: a: using fast path (resolved fctx: True) |
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51 0: 1 |
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52 1: 2 |
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53 2: 3 |
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54 3: 4 |
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55 |
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56 the cache could be reused and no download is necessary |
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57 |
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58 $ hg fastannotate a --debug |
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59 fastannotate: a: using fast path (resolved fctx: True) |
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60 0: 1 |
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61 1: 2 |
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62 2: 3 |
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63 3: 4 |
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64 |
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65 if the client agrees where the head of the master branch is, no re-download |
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66 happens even if the client has more commits |
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67 |
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68 $ echo 5 >> a |
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69 $ hg commit -m 5 |
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70 $ hg bookmark -r 3 @ -f |
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71 $ hg fastannotate a --debug |
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72 0: 1 |
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73 1: 2 |
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74 2: 3 |
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75 3: 4 |
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76 4: 5 |
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77 |
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78 if the client has a different "@" (head of the master branch) and "@" is ahead |
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79 of the server, the server can detect things are unchanged and does not return |
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80 full contents (not that there is no "writing ... to fastannotate"), but the |
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81 client can also build things up on its own (causing diverge) |
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82 |
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83 $ hg bookmark -r 4 @ -f |
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84 $ hg fastannotate a --debug |
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85 running * (glob) |
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86 sending hello command |
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87 sending between command |
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88 remote: * (glob) (?) |
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89 remote: capabilities: * (glob) |
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90 remote: * (glob) (?) |
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91 sending protocaps command |
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92 fastannotate: requesting 1 files |
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93 sending getannotate command |
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94 fastannotate: a: 1 new changesets in the main branch |
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95 0: 1 |
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96 1: 2 |
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97 2: 3 |
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98 3: 4 |
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99 4: 5 |
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100 |
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101 if the client has a different "@" which is behind the server. no download is |
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102 necessary |
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103 |
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104 $ hg fastannotate a --debug --config fastannotate.mainbranch=2 |
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105 fastannotate: a: using fast path (resolved fctx: True) |
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106 0: 1 |
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107 1: 2 |
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108 2: 3 |
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109 3: 4 |
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110 4: 5 |
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111 |
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112 define fastannotate on-disk paths |
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113 |
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114 $ p1=.hg/fastannotate/default |
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115 $ p2=../repo-server/.hg/fastannotate/default |
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116 |
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117 revert bookmark change so the client is behind the server |
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118 |
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119 $ hg bookmark -r 2 @ -f |
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120 |
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121 in the "fctx" mode with the "annotate" command, the client also downloads the |
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122 cache. but not in the (default) "fastannotate" mode. |
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123 |
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124 $ rm $p1/a.l $p1/a.m |
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125 $ hg annotate a --debug | grep 'fastannotate: writing' |
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126 [1] |
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127 $ hg annotate a --config fastannotate.modes=fctx --debug | grep 'fastannotate: writing' | sort |
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128 fastannotate: writing 112 bytes to fastannotate/default/a.l |
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129 fastannotate: writing 94 bytes to fastannotate/default/a.m |
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130 |
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131 the fastannotate cache (built server-side, downloaded client-side) in two repos |
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132 have the same content (because the client downloads from the server) |
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133 |
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134 $ diff $p1/a.l $p2/a.l |
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135 $ diff $p1/a.m $p2/a.m |
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136 |
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137 in the "fctx" mode, the client could also build the cache locally |
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138 |
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139 $ hg annotate a --config fastannotate.modes=fctx --debug --config fastannotate.mainbranch=4 | grep fastannotate |
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140 fastannotate: requesting 1 files |
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141 fastannotate: a: 1 new changesets in the main branch |
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142 |
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143 the server would rebuild broken cache automatically |
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144 |
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145 $ cp $p2/a.m $p2/a.m.bak |
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146 $ echo BROKEN1 > $p1/a.m |
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147 $ echo BROKEN2 > $p2/a.m |
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148 $ hg fastannotate a --debug | grep 'fastannotate: writing' | sort |
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149 fastannotate: writing 112 bytes to fastannotate/default/a.l |
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150 fastannotate: writing 94 bytes to fastannotate/default/a.m |
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151 $ diff $p1/a.m $p2/a.m |
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152 $ diff $p2/a.m $p2/a.m.bak |
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153 |
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154 use the "debugbuildannotatecache" command to build annotate cache |
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155 |
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156 $ rm -rf $p1 $p2 |
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157 $ hg --cwd ../repo-server debugbuildannotatecache a --debug |
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158 fastannotate: a: 4 new changesets in the main branch |
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159 $ hg --cwd ../repo-local debugbuildannotatecache a --debug |
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160 running * (glob) |
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161 sending hello command |
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162 sending between command |
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163 remote: * (glob) (?) |
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164 remote: capabilities: * (glob) |
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165 remote: * (glob) (?) |
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166 sending protocaps command |
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167 fastannotate: requesting 1 files |
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168 sending getannotate command |
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169 fastannotate: writing * (glob) |
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170 fastannotate: writing * (glob) |
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171 $ diff $p1/a.l $p2/a.l |
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172 $ diff $p1/a.m $p2/a.m |
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173 |
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174 with the clientfetchthreshold config option, the client can build up the cache |
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175 without downloading from the server |
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176 |
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177 $ rm -rf $p1 |
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178 $ hg fastannotate a --debug --config fastannotate.clientfetchthreshold=10 |
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179 fastannotate: a: 3 new changesets in the main branch |
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180 0: 1 |
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181 1: 2 |
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182 2: 3 |
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183 3: 4 |
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184 4: 5 |
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185 |
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186 if the fastannotate directory is not writable, the fctx mode still works |
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187 |
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188 $ rm -rf $p1 |
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189 $ touch $p1 |
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190 $ hg annotate a --debug --traceback --config fastannotate.modes=fctx |
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191 fastannotate: a: cache broken and deleted |
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192 fastannotate: prefetch failed: * (glob) |
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193 fastannotate: a: cache broken and deleted |
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194 fastannotate: falling back to the vanilla annotate: * (glob) |
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195 0: 1 |
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196 1: 2 |
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197 2: 3 |
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198 3: 4 |
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199 4: 5 |
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200 |
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201 with serverbuildondemand=False, the server will not build anything |
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202 |
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203 $ cat >> ../repo-server/.hg/hgrc <<EOF |
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204 > [fastannotate] |
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205 > serverbuildondemand=False |
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206 > EOF |
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207 $ rm -rf $p1 $p2 |
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208 $ hg fastannotate a --debug | grep 'fastannotate: writing' |
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209 [1] |