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" >object-list &&
  13         cut -d' ' -f2 object-list
  14 }
  15
  16 # has_any pattern-file content-file
  17 # tests whether content-file has any entry from pattern-file with entries being
  18 # whole lines.
  19 has_any () {
  20         grep -Ff "$1" "$2"
  21 }
  22
  23 test_expect_success 'setup repo with moderate-sized history' '
  24         for i in $(test_seq 1 10)
  25         do
  26                 test_commit $i
  27         done &&
  28         git checkout -b other HEAD~5 &&
  29         for i in $(test_seq 1 10)
  30         do
  31                 test_commit side-$i
  32         done &&
  33         git checkout master &&
  34         bitmaptip=$(git rev-parse master) &&
  35         blob=$(echo tagged-blob | git hash-object -w --stdin) &&
  36         git tag tagged-blob $blob &&
  37         git config repack.writebitmaps true &&
  38         git config pack.writebitmaphashcache true
  39 '
  40
  41 test_expect_success 'full repack creates bitmaps' '
  42         git repack -ad &&
  43         ls .git/objects/pack/ | grep bitmap >output &&
  44         test_line_count = 1 output
  45 '
  46
  47 test_expect_success 'rev-list --test-bitmap verifies bitmaps' '
  48         git rev-list --test-bitmap HEAD
  49 '
  50
  51 rev_list_tests() {
  52         state=$1
  53
  54         test_expect_success "counting commits via bitmap ($state)" '
  55                 git rev-list --count HEAD >expect &&
  56                 git rev-list --use-bitmap-index --count HEAD >actual &&
  57                 test_cmp expect actual
  58         '
  59
  60         test_expect_success "counting partial commits via bitmap ($state)" '
  61                 git rev-list --count HEAD~5..HEAD >expect &&
  62                 git rev-list --use-bitmap-index --count HEAD~5..HEAD >actual &&
  63                 test_cmp expect actual
  64         '
  65
  66         test_expect_success "counting commits with limit ($state)" '
  67                 git rev-list --count -n 1 HEAD >expect &&
  68                 git rev-list --use-bitmap-index --count -n 1 HEAD >actual &&
  69                 test_cmp expect actual
  70         '
  71
  72         test_expect_success "counting non-linear history ($state)" '
  73                 git rev-list --count other...master >expect &&
  74                 git rev-list --use-bitmap-index --count other...master >actual &&
  75                 test_cmp expect actual
  76         '
  77
  78         test_expect_success "counting commits with limiting ($state)" '
  79                 git rev-list --count HEAD -- 1.t >expect &&
  80                 git rev-list --use-bitmap-index --count HEAD -- 1.t >actual &&
  81                 test_cmp expect actual
  82         '
  83
  84         test_expect_success "enumerate --objects ($state)" '
  85                 git rev-list --objects --use-bitmap-index HEAD >tmp &&
  86                 cut -d" " -f1 <tmp >tmp2 &&
  87                 sort <tmp2 >actual &&
  88                 git rev-list --objects HEAD >tmp &&
  89                 cut -d" " -f1 <tmp >tmp2 &&
  90                 sort <tmp2 >expect &&
  91                 test_cmp expect actual
  92         '
  93
  94         test_expect_success "bitmap --objects handles non-commit objects ($state)" '
  95                 git rev-list --objects --use-bitmap-index HEAD tagged-blob >actual &&
  96                 grep $blob actual
  97         '
  98 }
  99
 100 rev_list_tests 'full bitmap'
 101
 102 test_expect_success 'clone from bitmapped repository' '
 103         git clone --no-local --bare . clone.git &&
 104         git rev-parse HEAD >expect &&
 105         git --git-dir=clone.git rev-parse HEAD >actual &&
 106         test_cmp expect actual
 107 '
 108
 109 test_expect_success 'setup further non-bitmapped commits' '
 110         for i in $(test_seq 1 10)
 111         do
 112                 test_commit further-$i
 113         done
 114 '
 115
 116 rev_list_tests 'partial bitmap'
 117
 118 test_expect_success 'fetch (partial bitmap)' '
 119         git --git-dir=clone.git fetch origin master:master &&
 120         git rev-parse HEAD >expect &&
 121         git --git-dir=clone.git rev-parse HEAD >actual &&
 122         test_cmp expect actual
 123 '
 124
 125 test_expect_success 'incremental repack fails when bitmaps are requested' '
 126         test_commit more-1 &&
 127         test_must_fail git repack -d 2>err &&
 128         test_i18ngrep "Incremental repacks are incompatible with bitmap" err
 129 '
 130
 131 test_expect_success 'incremental repack can disable bitmaps' '
 132         test_commit more-2 &&
 133         git repack -d --no-write-bitmap-index
 134 '
 135
 136 test_expect_success 'pack-objects respects --local (non-local loose)' '
 137         git init --bare alt.git &&
 138         echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
 139         echo content1 >file1 &&
 140         # non-local loose object which is not present in bitmapped pack
 141         altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
 142         # non-local loose object which is also present in bitmapped pack
 143         git cat-file blob $blob | GIT_DIR=alt.git git hash-object -w --stdin &&
 144         git add file1 &&
 145         test_tick &&
 146         git commit -m commit_file1 &&
 147         echo HEAD | git pack-objects --local --stdout --revs >1.pack &&
 148         git index-pack 1.pack &&
 149         list_packed_objects 1.idx >1.objects &&
 150         printf "%s\n" "$altblob" "$blob" >nonlocal-loose &&
 151         ! has_any nonlocal-loose 1.objects
 152 '
 153
 154 test_expect_success 'pack-objects respects --honor-pack-keep (local non-bitmapped pack)' '
 155         echo content2 >file2 &&
 156         blob2=$(git hash-object -w file2) &&
 157         git add file2 &&
 158         test_tick &&
 159         git commit -m commit_file2 &&
 160         printf "%s\n" "$blob2" "$bitmaptip" >keepobjects &&
 161         pack2=$(git pack-objects pack2 <keepobjects) &&
 162         mv pack2-$pack2.* .git/objects/pack/ &&
 163         >.git/objects/pack/pack2-$pack2.keep &&
 164         rm $(objpath $blob2) &&
 165         echo HEAD | git pack-objects --honor-pack-keep --stdout --revs >2a.pack &&
 166         git index-pack 2a.pack &&
 167         list_packed_objects 2a.idx >2a.objects &&
 168         ! has_any keepobjects 2a.objects
 169 '
 170
 171 test_expect_success 'pack-objects respects --local (non-local pack)' '
 172         mv .git/objects/pack/pack2-$pack2.* alt.git/objects/pack/ &&
 173         echo HEAD | git pack-objects --local --stdout --revs >2b.pack &&
 174         git index-pack 2b.pack &&
 175         list_packed_objects 2b.idx >2b.objects &&
 176         ! has_any keepobjects 2b.objects
 177 '
 178
 179 test_expect_success 'pack-objects respects --honor-pack-keep (local bitmapped pack)' '
 180         ls .git/objects/pack/ | grep bitmap >output &&
 181         test_line_count = 1 output &&
 182         packbitmap=$(basename $(cat output) .bitmap) &&
 183         list_packed_objects .git/objects/pack/$packbitmap.idx >packbitmap.objects &&
 184         test_when_finished "rm -f .git/objects/pack/$packbitmap.keep" &&
 185         >.git/objects/pack/$packbitmap.keep &&
 186         echo HEAD | git pack-objects --honor-pack-keep --stdout --revs >3a.pack &&
 187         git index-pack 3a.pack &&
 188         list_packed_objects 3a.idx >3a.objects &&
 189         ! has_any packbitmap.objects 3a.objects
 190 '
 191
 192 test_expect_success 'pack-objects respects --local (non-local bitmapped pack)' '
 193         mv .git/objects/pack/$packbitmap.* alt.git/objects/pack/ &&
 194         test_when_finished "mv alt.git/objects/pack/$packbitmap.* .git/objects/pack/" &&
 195         echo HEAD | git pack-objects --local --stdout --revs >3b.pack &&
 196         git index-pack 3b.pack &&
 197         list_packed_objects 3b.idx >3b.objects &&
 198         ! has_any packbitmap.objects 3b.objects
 199 '
 200
 201 test_expect_success 'pack-objects to file can use bitmap' '
 202         # make sure we still have 1 bitmap index from previous tests
 203         ls .git/objects/pack/ | grep bitmap >output &&
 204         test_line_count = 1 output &&
 205         # verify equivalent packs are generated with/without using bitmap index
 206         packasha1=$(git pack-objects --no-use-bitmap-index --all packa </dev/null) &&
 207         packbsha1=$(git pack-objects --use-bitmap-index --all packb </dev/null) &&
 208         list_packed_objects packa-$packasha1.idx >packa.objects &&
 209         list_packed_objects packb-$packbsha1.idx >packb.objects &&
 210         test_cmp packa.objects packb.objects
 211 '
 212
 213 test_expect_success 'full repack, reusing previous bitmaps' '
 214         git repack -ad &&
 215         ls .git/objects/pack/ | grep bitmap >output &&
 216         test_line_count = 1 output
 217 '
 218
 219 test_expect_success 'fetch (full bitmap)' '
 220         git --git-dir=clone.git fetch origin master:master &&
 221         git rev-parse HEAD >expect &&
 222         git --git-dir=clone.git rev-parse HEAD >actual &&
 223         test_cmp expect actual
 224 '
 225
 226 test_expect_success 'create objects for missing-HAVE tests' '
 227         blob=$(echo "missing have" | git hash-object -w --stdin) &&
 228         tree=$(printf "100644 blob $blob\tfile\n" | git mktree) &&
 229         parent=$(echo parent | git commit-tree $tree) &&
 230         commit=$(echo commit | git commit-tree $tree -p $parent) &&
 231         cat >revs <<-EOF
 232         HEAD
 233         ^HEAD^
 234         ^$commit
 235         EOF
 236 '
 237
 238 test_expect_success 'pack-objects respects --incremental' '
 239         cat >revs2 <<-EOF &&
 240         HEAD
 241         $commit
 242         EOF
 243         git pack-objects --incremental --stdout --revs <revs2 >4.pack &&
 244         git index-pack 4.pack &&
 245         list_packed_objects 4.idx >4.objects &&
 246         test_line_count = 4 4.objects &&
 247         git rev-list --objects $commit >revlist &&
 248         cut -d" " -f1 revlist |sort >objects &&
 249         test_cmp 4.objects objects
 250 '
 251
 252 test_expect_success 'pack with missing blob' '
 253         rm $(objpath $blob) &&
 254         git pack-objects --stdout --revs <revs >/dev/null
 255 '
 256
 257 test_expect_success 'pack with missing tree' '
 258         rm $(objpath $tree) &&
 259         git pack-objects --stdout --revs <revs >/dev/null
 260 '
 261
 262 test_expect_success 'pack with missing parent' '
 263         rm $(objpath $parent) &&
 264         git pack-objects --stdout --revs <revs >/dev/null
 265 '
 266
 267 test_expect_success JGIT 'we can read jgit bitmaps' '
 268         git clone --bare . compat-jgit.git &&
 269         (
 270                 cd compat-jgit.git &&
 271                 rm -f .git/objects/pack/*.bitmap &&
 272                 jgit gc &&
 273                 git rev-list --test-bitmap HEAD
 274         )
 275 '
 276
 277 test_expect_success JGIT 'jgit can read our bitmaps' '
 278         git clone --bare . compat-us.git &&
 279         (
 280                 cd compat-us.git &&
 281                 git repack -adb &&
 282                 # jgit gc will barf if it does not like our bitmaps
 283                 jgit gc
 284         )
 285 '
 286
 287 test_expect_success 'splitting packs does not generate bogus bitmaps' '
 288         test-tool genrandom foo $((1024 * 1024)) >rand &&
 289         git add rand &&
 290         git commit -m "commit with big file" &&
 291         git -c pack.packSizeLimit=500k repack -adb &&
 292         git init --bare no-bitmaps.git &&
 293         git -C no-bitmaps.git fetch .. HEAD
 294 '
 295
 296 test_expect_success 'set up reusable pack' '
 297         rm -f .git/objects/pack/*.keep &&
 298         git repack -adb &&
 299         reusable_pack () {
 300                 git for-each-ref --format="%(objectname)" |
 301                 git pack-objects --delta-base-offset --revs --stdout "$@"
 302         }
 303 '
 304
 305 test_expect_success 'pack reuse respects --honor-pack-keep' '
 306         test_when_finished "rm -f .git/objects/pack/*.keep" &&
 307         for i in .git/objects/pack/*.pack
 308         do
 309                 >${i%.pack}.keep
 310         done &&
 311         reusable_pack --honor-pack-keep >empty.pack &&
 312         git index-pack empty.pack &&
 313         >expect &&
 314         git show-index <empty.idx >actual &&
 315         test_cmp expect actual
 316 '
 317
 318 test_expect_success 'pack reuse respects --local' '
 319         mv .git/objects/pack/* alt.git/objects/pack/ &&
 320         test_when_finished "mv alt.git/objects/pack/* .git/objects/pack/" &&
 321         reusable_pack --local >empty.pack &&
 322         git index-pack empty.pack &&
 323         >expect &&
 324         git show-index <empty.idx >actual &&
 325         test_cmp expect actual
 326 '
 327
 328 test_expect_success 'pack reuse respects --incremental' '
 329         reusable_pack --incremental >empty.pack &&
 330         git index-pack empty.pack &&
 331         >expect &&
 332         git show-index <empty.idx >actual &&
 333         test_cmp expect actual
 334 '
 335
 336 test_expect_success 'truncated bitmap fails gracefully' '
 337         git repack -ad &&
 338         git rev-list --use-bitmap-index --count --all >expect &&
 339         bitmap=$(ls .git/objects/pack/*.bitmap) &&
 340         test_when_finished "rm -f $bitmap" &&
 341         head -c 512 <$bitmap >$bitmap.tmp &&
 342         mv -f $bitmap.tmp $bitmap &&
 343         git rev-list --use-bitmap-index --count --all >actual 2>stderr &&
 344         test_cmp expect actual &&
 345         test_i18ngrep corrupt stderr
 346 '
 347
 348 test_done