t/t3302-notes-index-expensive.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007 Johannes E. Schindelin
   4 #
   5
   6 test_description='Test commit notes index (expensive!)'
   7
   8 . ./test-lib.sh
   9
  10 test -z "$GIT_NOTES_TIMING_TESTS" && {
  11         say Skipping timing tests
  12         test_done
  13         exit
  14 }
  15
  16 create_repo () {
  17         number_of_commits=$1
  18         nr=0
  19         parent=
  20         test -d .git || {
  21         git init &&
  22         tree=$(git write-tree) &&
  23         while [ $nr -lt $number_of_commits ]; do
  24                 test_tick &&
  25                 commit=$(echo $nr | git commit-tree $tree $parent) ||
  26                         return
  27                 parent="-p $commit"
  28                 nr=$(($nr+1))
  29         done &&
  30         git update-ref refs/heads/master $commit &&
  31         {
  32                 export GIT_INDEX_FILE=.git/temp;
  33                 git rev-list HEAD | cat -n | sed "s/^[  ][      ]*/ /g" |
  34                 while read nr sha1; do
  35                         blob=$(echo note $nr | git hash-object -w --stdin) &&
  36                         echo $sha1 | sed "s/^/0644 $blob 0      /"
  37                 done | git update-index --index-info &&
  38                 tree=$(git write-tree) &&
  39                 test_tick &&
  40                 commit=$(echo notes | git commit-tree $tree) &&
  41                 git update-ref refs/notes/commits $commit
  42         } &&
  43         git config core.notesRef refs/notes/commits
  44         }
  45 }
  46
  47 test_notes () {
  48         count=$1 &&
  49         git config core.notesRef refs/notes/commits &&
  50         git log | grep "^    " > output &&
  51         i=1 &&
  52         while [ $i -le $count ]; do
  53                 echo "    $(($count-$i))" &&
  54                 echo "    note $i" &&
  55                 i=$(($i+1));
  56         done > expect &&
  57         git diff expect output
  58 }
  59
  60 cat > time_notes << \EOF
  61         mode=$1
  62         i=1
  63         while [ $i -lt $2 ]; do
  64                 case $1 in
  65                 no-notes)
  66                         export GIT_NOTES_REF=non-existing
  67                 ;;
  68                 notes)
  69                         unset GIT_NOTES_REF
  70                 ;;
  71                 esac
  72                 git log >/dev/null
  73                 i=$(($i+1))
  74         done
  75 EOF
  76
  77 time_notes () {
  78         for mode in no-notes notes
  79         do
  80                 echo $mode
  81                 /usr/bin/time sh ../time_notes $mode $1
  82         done
  83 }
  84
  85 for count in 10 100 1000 10000; do
  86
  87         mkdir $count
  88         (cd $count;
  89
  90         test_expect_success "setup $count" "create_repo $count"
  91
  92         test_expect_success 'notes work' "test_notes $count"
  93
  94         test_expect_success 'notes timing' "time_notes 100"
  95         )
  96 done
  97
  98 test_done