t/t5310-pack-bitmaps.sh

   1 #!/bin/sh
   2
   3 test_description='exercise basic bitmap functionality'
   4 . ./test-lib.sh
   5
   6 test_expect_success 'setup repo with moderate-sized history' '
   7         for i in $(test_seq 1 10); do
   8                 test_commit $i
   9         done &&
  10         git checkout -b other HEAD~5 &&
  11         for i in $(test_seq 1 10); do
  12                 test_commit side-$i
  13         done &&
  14         git checkout master &&
  15         blob=$(echo tagged-blob | git hash-object -w --stdin) &&
  16         git tag tagged-blob $blob &&
  17         git config pack.writebitmaps true &&
  18         git config pack.writebitmaphashcache true
  19 '
  20
  21 test_expect_success 'full repack creates bitmaps' '
  22         git repack -ad &&
  23         ls .git/objects/pack/ | grep bitmap >output &&
  24         test_line_count = 1 output
  25 '
  26
  27 test_expect_success 'rev-list --test-bitmap verifies bitmaps' '
  28         git rev-list --test-bitmap HEAD
  29 '
  30
  31 rev_list_tests() {
  32         state=$1
  33
  34         test_expect_success "counting commits via bitmap ($state)" '
  35                 git rev-list --count HEAD >expect &&
  36                 git rev-list --use-bitmap-index --count HEAD >actual &&
  37                 test_cmp expect actual
  38         '
  39
  40         test_expect_success "counting partial commits via bitmap ($state)" '
  41                 git rev-list --count HEAD~5..HEAD >expect &&
  42                 git rev-list --use-bitmap-index --count HEAD~5..HEAD >actual &&
  43                 test_cmp expect actual
  44         '
  45
  46         test_expect_success "counting non-linear history ($state)" '
  47                 git rev-list --count other...master >expect &&
  48                 git rev-list --use-bitmap-index --count other...master >actual &&
  49                 test_cmp expect actual
  50         '
  51
  52         test_expect_success "enumerate --objects ($state)" '
  53                 git rev-list --objects --use-bitmap-index HEAD >tmp &&
  54                 cut -d" " -f1 <tmp >tmp2 &&
  55                 sort <tmp2 >actual &&
  56                 git rev-list --objects HEAD >tmp &&
  57                 cut -d" " -f1 <tmp >tmp2 &&
  58                 sort <tmp2 >expect &&
  59                 test_cmp expect actual
  60         '
  61
  62         test_expect_success "bitmap --objects handles non-commit objects ($state)" '
  63                 git rev-list --objects --use-bitmap-index HEAD tagged-blob >actual &&
  64                 grep $blob actual
  65         '
  66 }
  67
  68 rev_list_tests 'full bitmap'
  69
  70 test_expect_success 'clone from bitmapped repository' '
  71         git clone --no-local --bare . clone.git &&
  72         git rev-parse HEAD >expect &&
  73         git --git-dir=clone.git rev-parse HEAD >actual &&
  74         test_cmp expect actual
  75 '
  76
  77 test_expect_success 'setup further non-bitmapped commits' '
  78         for i in $(test_seq 1 10); do
  79                 test_commit further-$i
  80         done
  81 '
  82
  83 rev_list_tests 'partial bitmap'
  84
  85 test_expect_success 'fetch (partial bitmap)' '
  86         git --git-dir=clone.git fetch origin master:master &&
  87         git rev-parse HEAD >expect &&
  88         git --git-dir=clone.git rev-parse HEAD >actual &&
  89         test_cmp expect actual
  90 '
  91
  92 test_expect_success 'incremental repack cannot create bitmaps' '
  93         test_commit more-1 &&
  94         find .git/objects/pack -name "*.bitmap" >expect &&
  95         git repack -d &&
  96         find .git/objects/pack -name "*.bitmap" >actual &&
  97         test_cmp expect actual
  98 '
  99
 100 test_expect_success 'incremental repack can disable bitmaps' '
 101         test_commit more-2 &&
 102         git repack -d --no-write-bitmap-index
 103 '
 104
 105 test_expect_success 'full repack, reusing previous bitmaps' '
 106         git repack -ad &&
 107         ls .git/objects/pack/ | grep bitmap >output &&
 108         test_line_count = 1 output
 109 '
 110
 111 test_expect_success 'fetch (full bitmap)' '
 112         git --git-dir=clone.git fetch origin master:master &&
 113         git rev-parse HEAD >expect &&
 114         git --git-dir=clone.git rev-parse HEAD >actual &&
 115         test_cmp expect actual
 116 '
 117
 118 test_lazy_prereq JGIT '
 119         type jgit
 120 '
 121
 122 test_expect_success JGIT 'we can read jgit bitmaps' '
 123         git clone . compat-jgit &&
 124         (
 125                 cd compat-jgit &&
 126                 rm -f .git/objects/pack/*.bitmap &&
 127                 jgit gc &&
 128                 git rev-list --test-bitmap HEAD
 129         )
 130 '
 131
 132 test_expect_success JGIT 'jgit can read our bitmaps' '
 133         git clone . compat-us &&
 134         (
 135                 cd compat-us &&
 136                 git repack -adb &&
 137                 # jgit gc will barf if it does not like our bitmaps
 138                 jgit gc
 139         )
 140 '
 141
 142 test_done