t/t5310-pack-bitmaps.sh

   1 #!/bin/sh
   2
   3 test_description='exercise basic bitmap functionality'
   4 . ./test-lib.sh
   5
   6 objpath () {
   7         echo ".git/objects/$(echo "$1" | sed -e 's|\(..\)|\1/|')"
   8 }
   9
  10 # show objects present in pack ($1 should be associated *.idx)
  11 list_packed_objects () {
  12         git show-index <"$1" | cut -d' ' -f2
  13 }
  14
  15 # has_any pattern-file content-file
  16 # tests whether content-file has any entry from pattern-file with entries being
  17 # whole lines.
  18 has_any () {
  19         grep -Ff "$1" "$2"
  20 }
  21
  22 test_expect_success 'setup repo with moderate-sized history' '
  23         for i in $(test_seq 1 10); do
  24                 test_commit $i
  25         done &&
  26         git checkout -b other HEAD~5 &&
  27         for i in $(test_seq 1 10); do
  28                 test_commit side-$i
  29         done &&
  30         git checkout master &&
  31         bitmaptip=$(git rev-parse master) &&
  32         blob=$(echo tagged-blob | git hash-object -w --stdin) &&
  33         git tag tagged-blob $blob &&
  34         git config repack.writebitmaps true &&
  35         git config pack.writebitmaphashcache true
  36 '
  37
  38 test_expect_success 'full repack creates bitmaps' '
  39         git repack -ad &&
  40         ls .git/objects/pack/ | grep bitmap >output &&
  41         test_line_count = 1 output
  42 '
  43
  44 test_expect_success 'rev-list --test-bitmap verifies bitmaps' '
  45         git rev-list --test-bitmap HEAD
  46 '
  47
  48 rev_list_tests() {
  49         state=$1
  50
  51         test_expect_success "counting commits via bitmap ($state)" '
  52                 git rev-list --count HEAD >expect &&
  53                 git rev-list --use-bitmap-index --count HEAD >actual &&
  54                 test_cmp expect actual
  55         '
  56
  57         test_expect_success "counting partial commits via bitmap ($state)" '
  58                 git rev-list --count HEAD~5..HEAD >expect &&
  59                 git rev-list --use-bitmap-index --count HEAD~5..HEAD >actual &&
  60                 test_cmp expect actual
  61         '
  62
  63         test_expect_success "counting commits with limit ($state)" '
  64                 git rev-list --count -n 1 HEAD >expect &&
  65                 git rev-list --use-bitmap-index --count -n 1 HEAD >actual &&
  66                 test_cmp expect actual
  67         '
  68
  69         test_expect_success "counting non-linear history ($state)" '
  70                 git rev-list --count other...master >expect &&
  71                 git rev-list --use-bitmap-index --count other...master >actual &&
  72                 test_cmp expect actual
  73         '
  74
  75         test_expect_success "counting commits with limiting ($state)" '
  76                 git rev-list --count HEAD -- 1.t >expect &&
  77                 git rev-list --use-bitmap-index --count HEAD -- 1.t >actual &&
  78                 test_cmp expect actual
  79         '
  80
  81         test_expect_success "enumerate --objects ($state)" '
  82                 git rev-list --objects --use-bitmap-index HEAD >tmp &&
  83                 cut -d" " -f1 <tmp >tmp2 &&
  84                 sort <tmp2 >actual &&
  85                 git rev-list --objects HEAD >tmp &&
  86                 cut -d" " -f1 <tmp >tmp2 &&
  87                 sort <tmp2 >expect &&
  88                 test_cmp expect actual
  89         '
  90
  91         test_expect_success "bitmap --objects handles non-commit objects ($state)" '
  92                 git rev-list --objects --use-bitmap-index HEAD tagged-blob >actual &&
  93                 grep $blob actual
  94         '
  95 }
  96
  97 rev_list_tests 'full bitmap'
  98
  99 test_expect_success 'clone from bitmapped repository' '
 100         git clone --no-local --bare . clone.git &&
 101         git rev-parse HEAD >expect &&
 102         git --git-dir=clone.git rev-parse HEAD >actual &&
 103         test_cmp expect actual
 104 '
 105
 106 test_expect_success 'setup further non-bitmapped commits' '
 107         for i in $(test_seq 1 10); do
 108                 test_commit further-$i
 109         done
 110 '
 111
 112 rev_list_tests 'partial bitmap'
 113
 114 test_expect_success 'fetch (partial bitmap)' '
 115         git --git-dir=clone.git fetch origin master:master &&
 116         git rev-parse HEAD >expect &&
 117         git --git-dir=clone.git rev-parse HEAD >actual &&
 118         test_cmp expect actual
 119 '
 120
 121 test_expect_success 'incremental repack fails when bitmaps are requested' '
 122         test_commit more-1 &&
 123         test_must_fail git repack -d 2>err &&
 124         test_i18ngrep "Incremental repacks are incompatible with bitmap" err
 125 '
 126
 127 test_expect_success 'incremental repack can disable bitmaps' '
 128         test_commit more-2 &&
 129         git repack -d --no-write-bitmap-index
 130 '
 131
 132 test_expect_success 'pack-objects respects --local (non-local loose)' '
 133         git init --bare alt.git &&
 134         echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
 135         echo content1 >file1 &&
 136         # non-local loose object which is not present in bitmapped pack
 137         altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
 138         # non-local loose object which is also present in bitmapped pack
 139         git cat-file blob $blob | GIT_DIR=alt.git git hash-object -w --stdin &&
 140         git add file1 &&
 141         test_tick &&
 142         git commit -m commit_file1 &&
 143         echo HEAD | git pack-objects --local --stdout --revs >1.pack &&
 144         git index-pack 1.pack &&
 145         list_packed_objects 1.idx >1.objects &&
 146         printf "%s\n" "$altblob" "$blob" >nonlocal-loose &&
 147         ! has_any nonlocal-loose 1.objects
 148 '
 149
 150 test_expect_success 'pack-objects respects --honor-pack-keep (local non-bitmapped pack)' '
 151         echo content2 >file2 &&
 152         blob2=$(git hash-object -w file2) &&
 153         git add file2 &&
 154         test_tick &&
 155         git commit -m commit_file2 &&
 156         printf "%s\n" "$blob2" "$bitmaptip" >keepobjects &&
 157         pack2=$(git pack-objects pack2 <keepobjects) &&
 158         mv pack2-$pack2.* .git/objects/pack/ &&
 159         >.git/objects/pack/pack2-$pack2.keep &&
 160         rm $(objpath $blob2) &&
 161         echo HEAD | git pack-objects --honor-pack-keep --stdout --revs >2a.pack &&
 162         git index-pack 2a.pack &&
 163         list_packed_objects 2a.idx >2a.objects &&
 164         ! has_any keepobjects 2a.objects
 165 '
 166
 167 test_expect_success 'pack-objects respects --local (non-local pack)' '
 168         mv .git/objects/pack/pack2-$pack2.* alt.git/objects/pack/ &&
 169         echo HEAD | git pack-objects --local --stdout --revs >2b.pack &&
 170         git index-pack 2b.pack &&
 171         list_packed_objects 2b.idx >2b.objects &&
 172         ! has_any keepobjects 2b.objects
 173 '
 174
 175 test_expect_success 'pack-objects respects --honor-pack-keep (local bitmapped pack)' '
 176         ls .git/objects/pack/ | grep bitmap >output &&
 177         test_line_count = 1 output &&
 178         packbitmap=$(basename $(cat output) .bitmap) &&
 179         list_packed_objects .git/objects/pack/$packbitmap.idx >packbitmap.objects &&
 180         test_when_finished "rm -f .git/objects/pack/$packbitmap.keep" &&
 181         >.git/objects/pack/$packbitmap.keep &&
 182         echo HEAD | git pack-objects --honor-pack-keep --stdout --revs >3a.pack &&
 183         git index-pack 3a.pack &&
 184         list_packed_objects 3a.idx >3a.objects &&
 185         ! has_any packbitmap.objects 3a.objects
 186 '
 187
 188 test_expect_success 'pack-objects respects --local (non-local bitmapped pack)' '
 189         mv .git/objects/pack/$packbitmap.* alt.git/objects/pack/ &&
 190         test_when_finished "mv alt.git/objects/pack/$packbitmap.* .git/objects/pack/" &&
 191         echo HEAD | git pack-objects --local --stdout --revs >3b.pack &&
 192         git index-pack 3b.pack &&
 193         list_packed_objects 3b.idx >3b.objects &&
 194         ! has_any packbitmap.objects 3b.objects
 195 '
 196
 197 test_expect_success 'pack-objects to file can use bitmap' '
 198         # make sure we still have 1 bitmap index from previous tests
 199         ls .git/objects/pack/ | grep bitmap >output &&
 200         test_line_count = 1 output &&
 201         # verify equivalent packs are generated with/without using bitmap index
 202         packasha1=$(git pack-objects --no-use-bitmap-index --all packa </dev/null) &&
 203         packbsha1=$(git pack-objects --use-bitmap-index --all packb </dev/null) &&
 204         list_packed_objects <packa-$packasha1.idx >packa.objects &&
 205         list_packed_objects <packb-$packbsha1.idx >packb.objects &&
 206         test_cmp packa.objects packb.objects
 207 '
 208
 209 test_expect_success 'full repack, reusing previous bitmaps' '
 210         git repack -ad &&
 211         ls .git/objects/pack/ | grep bitmap >output &&
 212         test_line_count = 1 output
 213 '
 214
 215 test_expect_success 'fetch (full bitmap)' '
 216         git --git-dir=clone.git fetch origin master:master &&
 217         git rev-parse HEAD >expect &&
 218         git --git-dir=clone.git rev-parse HEAD >actual &&
 219         test_cmp expect actual
 220 '
 221
 222 test_expect_success 'create objects for missing-HAVE tests' '
 223         blob=$(echo "missing have" | git hash-object -w --stdin) &&
 224         tree=$(printf "100644 blob $blob\tfile\n" | git mktree) &&
 225         parent=$(echo parent | git commit-tree $tree) &&
 226         commit=$(echo commit | git commit-tree $tree -p $parent) &&
 227         cat >revs <<-EOF
 228         HEAD
 229         ^HEAD^
 230         ^$commit
 231         EOF
 232 '
 233
 234 test_expect_success 'pack-objects respects --incremental' '
 235         cat >revs2 <<-EOF &&
 236         HEAD
 237         $commit
 238         EOF
 239         git pack-objects --incremental --stdout --revs <revs2 >4.pack &&
 240         git index-pack 4.pack &&
 241         list_packed_objects 4.idx >4.objects &&
 242         test_line_count = 4 4.objects &&
 243         git rev-list --objects $commit >revlist &&
 244         cut -d" " -f1 revlist |sort >objects &&
 245         test_cmp 4.objects objects
 246 '
 247
 248 test_expect_success 'pack with missing blob' '
 249         rm $(objpath $blob) &&
 250         git pack-objects --stdout --revs <revs >/dev/null
 251 '
 252
 253 test_expect_success 'pack with missing tree' '
 254         rm $(objpath $tree) &&
 255         git pack-objects --stdout --revs <revs >/dev/null
 256 '
 257
 258 test_expect_success 'pack with missing parent' '
 259         rm $(objpath $parent) &&
 260         git pack-objects --stdout --revs <revs >/dev/null
 261 '
 262
 263 test_expect_success JGIT 'we can read jgit bitmaps' '
 264         git clone . compat-jgit &&
 265         (
 266                 cd compat-jgit &&
 267                 rm -f .git/objects/pack/*.bitmap &&
 268                 jgit gc &&
 269                 git rev-list --test-bitmap HEAD
 270         )
 271 '
 272
 273 test_expect_success JGIT 'jgit can read our bitmaps' '
 274         git clone . compat-us &&
 275         (
 276                 cd compat-us &&
 277                 git repack -adb &&
 278                 # jgit gc will barf if it does not like our bitmaps
 279                 jgit gc
 280         )
 281 '
 282
 283 test_expect_success 'splitting packs does not generate bogus bitmaps' '
 284         test-genrandom foo $((1024 * 1024)) >rand &&
 285         git add rand &&
 286         git commit -m "commit with big file" &&
 287         git -c pack.packSizeLimit=500k repack -adb &&
 288         git init --bare no-bitmaps.git &&
 289         git -C no-bitmaps.git fetch .. HEAD
 290 '
 291
 292 test_done