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