t/t7700-repack.sh

   1 #!/bin/sh
   2
   3 test_description='git repack works correctly'
   4
   5 . ./test-lib.sh
   6 . "${TEST_DIRECTORY}/lib-bitmap.sh"
   7 . "${TEST_DIRECTORY}/lib-midx.sh"
   8 . "${TEST_DIRECTORY}/lib-terminal.sh"
   9
  10 commit_and_pack () {
  11         test_commit "$@" 1>&2 &&
  12         incrpackid=$(git pack-objects --all --unpacked --incremental .git/objects/pack/pack </dev/null) &&
  13         echo pack-${incrpackid}.pack
  14 }
  15
  16 test_no_missing_in_packs () {
  17         myidx=$(ls -1 .git/objects/pack/*.idx) &&
  18         test_path_is_file "$myidx" &&
  19         git verify-pack -v alt_objects/pack/*.idx >orig.raw &&
  20         sed -n -e "s/^\($OID_REGEX\).*/\1/p" orig.raw | sort >orig &&
  21         git verify-pack -v $myidx >dest.raw &&
  22         cut -d" " -f1 dest.raw | sort >dest &&
  23         comm -23 orig dest >missing &&
  24         test_must_be_empty missing
  25 }
  26
  27 # we expect $packid and $oid to be defined
  28 test_has_duplicate_object () {
  29         want_duplicate_object="$1"
  30         found_duplicate_object=false
  31         for p in .git/objects/pack/*.idx
  32         do
  33                 idx=$(basename $p)
  34                 test "pack-$packid.idx" = "$idx" && continue
  35                 git verify-pack -v $p >packlist || return $?
  36                 if grep "^$oid" packlist
  37                 then
  38                         found_duplicate_object=true
  39                         echo "DUPLICATE OBJECT FOUND"
  40                         break
  41                 fi
  42         done &&
  43         test "$want_duplicate_object" = "$found_duplicate_object"
  44 }
  45
  46 test_expect_success 'objects in packs marked .keep are not repacked' '
  47         echo content1 >file1 &&
  48         echo content2 >file2 &&
  49         git add . &&
  50         test_tick &&
  51         git commit -m initial_commit &&
  52         # Create two packs
  53         # The first pack will contain all of the objects except one
  54         git rev-list --objects --all >objs &&
  55         grep -v file2 objs | git pack-objects pack &&
  56         # The second pack will contain the excluded object
  57         packid=$(grep file2 objs | git pack-objects pack) &&
  58         >pack-$packid.keep &&
  59         git verify-pack -v pack-$packid.idx >packlist &&
  60         oid=$(head -n 1 packlist | sed -e "s/^\($OID_REGEX\).*/\1/") &&
  61         mv pack-* .git/objects/pack/ &&
  62         git repack -A -d -l &&
  63         git prune-packed &&
  64         test_has_duplicate_object false
  65 '
  66
  67 test_expect_success 'writing bitmaps via command-line can duplicate .keep objects' '
  68         # build on $oid, $packid, and .keep state from previous
  69         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 git repack -Adbl &&
  70         test_has_duplicate_object true
  71 '
  72
  73 test_expect_success 'writing bitmaps via config can duplicate .keep objects' '
  74         # build on $oid, $packid, and .keep state from previous
  75         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
  76                 git -c repack.writebitmaps=true repack -Adl &&
  77         test_has_duplicate_object true
  78 '
  79
  80 test_expect_success 'loose objects in alternate ODB are not repacked' '
  81         mkdir alt_objects &&
  82         echo $(pwd)/alt_objects >.git/objects/info/alternates &&
  83         echo content3 >file3 &&
  84         oid=$(GIT_OBJECT_DIRECTORY=alt_objects git hash-object -w file3) &&
  85         git add file3 &&
  86         test_tick &&
  87         git commit -m commit_file3 &&
  88         git repack -a -d -l &&
  89         git prune-packed &&
  90         test_has_duplicate_object false
  91 '
  92
  93 test_expect_success 'packed obs in alt ODB are repacked even when local repo is packless' '
  94         mkdir alt_objects/pack &&
  95         mv .git/objects/pack/* alt_objects/pack &&
  96         git repack -a &&
  97         test_no_missing_in_packs
  98 '
  99
 100 test_expect_success 'packed obs in alt ODB are repacked when local repo has packs' '
 101         rm -f .git/objects/pack/* &&
 102         echo new_content >>file1 &&
 103         git add file1 &&
 104         test_tick &&
 105         git commit -m more_content &&
 106         git repack &&
 107         git repack -a -d &&
 108         test_no_missing_in_packs
 109 '
 110
 111 test_expect_success 'packed obs in alternate ODB kept pack are repacked' '
 112         # swap the .keep so the commit object is in the pack with .keep
 113         for p in alt_objects/pack/*.pack
 114         do
 115                 base_name=$(basename $p .pack) &&
 116                 if test_path_is_file alt_objects/pack/$base_name.keep
 117                 then
 118                         rm alt_objects/pack/$base_name.keep
 119                 else
 120                         touch alt_objects/pack/$base_name.keep
 121                 fi || return 1
 122         done &&
 123         git repack -a -d &&
 124         test_no_missing_in_packs
 125 '
 126
 127 test_expect_success 'packed unreachable obs in alternate ODB are not loosened' '
 128         rm -f alt_objects/pack/*.keep &&
 129         mv .git/objects/pack/* alt_objects/pack/ &&
 130         coid=$(git rev-parse HEAD^{commit}) &&
 131         git reset --hard HEAD^ &&
 132         test_tick &&
 133         git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all &&
 134         # The pack-objects call on the next line is equivalent to
 135         # git repack -A -d without the call to prune-packed
 136         git pack-objects --honor-pack-keep --non-empty --all --reflog \
 137             --unpack-unreachable </dev/null pack &&
 138         rm -f .git/objects/pack/* &&
 139         mv pack-* .git/objects/pack/ &&
 140         git verify-pack -v -- .git/objects/pack/*.idx >packlist &&
 141         ! grep "^$coid " packlist &&
 142         echo >.git/objects/info/alternates &&
 143         test_must_fail git show $coid
 144 '
 145
 146 test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' '
 147         echo $(pwd)/alt_objects >.git/objects/info/alternates &&
 148         echo "$coid" | git pack-objects --non-empty --all --reflog pack &&
 149         rm -f .git/objects/pack/* &&
 150         mv pack-* .git/objects/pack/ &&
 151         # The pack-objects call on the next line is equivalent to
 152         # git repack -A -d without the call to prune-packed
 153         git pack-objects --honor-pack-keep --non-empty --all --reflog \
 154             --unpack-unreachable </dev/null pack &&
 155         rm -f .git/objects/pack/* &&
 156         mv pack-* .git/objects/pack/ &&
 157         git verify-pack -v -- .git/objects/pack/*.idx >packlist &&
 158         ! grep "^$coid " &&
 159         echo >.git/objects/info/alternates &&
 160         test_must_fail git show $coid
 161 '
 162
 163 test_expect_success 'objects made unreachable by grafts only are kept' '
 164         test_tick &&
 165         git commit --allow-empty -m "commit 4" &&
 166         H0=$(git rev-parse HEAD) &&
 167         H1=$(git rev-parse HEAD^) &&
 168         H2=$(git rev-parse HEAD^^) &&
 169         echo "$H0 $H2" >.git/info/grafts &&
 170         git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all &&
 171         git repack -a -d &&
 172         git cat-file -t $H1
 173 '
 174
 175 test_expect_success 'repack --keep-pack' '
 176         test_create_repo keep-pack &&
 177         (
 178                 cd keep-pack &&
 179                 P1=$(commit_and_pack 1) &&
 180                 P2=$(commit_and_pack 2) &&
 181                 P3=$(commit_and_pack 3) &&
 182                 P4=$(commit_and_pack 4) &&
 183                 ls .git/objects/pack/*.pack >old-counts &&
 184                 test_line_count = 4 old-counts &&
 185                 git repack -a -d --keep-pack $P1 --keep-pack $P4 &&
 186                 ls .git/objects/pack/*.pack >new-counts &&
 187                 grep -q $P1 new-counts &&
 188                 grep -q $P4 new-counts &&
 189                 test_line_count = 3 new-counts &&
 190                 git fsck
 191         )
 192 '
 193
 194 test_expect_success 'bitmaps are created by default in bare repos' '
 195         git clone --bare .git bare.git &&
 196         rm -f bare.git/objects/pack/*.bitmap &&
 197         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
 198                 git -C bare.git repack -ad &&
 199         bitmap=$(ls bare.git/objects/pack/*.bitmap) &&
 200         test_path_is_file "$bitmap"
 201 '
 202
 203 test_expect_success 'incremental repack does not complain' '
 204         git -C bare.git repack -q 2>repack.err &&
 205         test_must_be_empty repack.err
 206 '
 207
 208 test_expect_success 'bitmaps can be disabled on bare repos' '
 209         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
 210                 git -c repack.writeBitmaps=false -C bare.git repack -ad &&
 211         bitmap=$(ls bare.git/objects/pack/*.bitmap || :) &&
 212         test -z "$bitmap"
 213 '
 214
 215 test_expect_success 'no bitmaps created if .keep files present' '
 216         pack=$(ls bare.git/objects/pack/*.pack) &&
 217         test_path_is_file "$pack" &&
 218         keep=${pack%.pack}.keep &&
 219         test_when_finished "rm -f \"\$keep\"" &&
 220         >"$keep" &&
 221         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
 222                 git -C bare.git repack -ad 2>stderr &&
 223         test_must_be_empty stderr &&
 224         find bare.git/objects/pack/ -type f -name "*.bitmap" >actual &&
 225         test_must_be_empty actual
 226 '
 227
 228 test_expect_success 'auto-bitmaps do not complain if unavailable' '
 229         test_config -C bare.git pack.packSizeLimit 1M &&
 230         blob=$(test-tool genrandom big $((1024*1024)) |
 231                git -C bare.git hash-object -w --stdin) &&
 232         git -C bare.git update-ref refs/tags/big $blob &&
 233         GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
 234                 git -C bare.git repack -ad 2>stderr &&
 235         test_must_be_empty stderr &&
 236         find bare.git/objects/pack -type f -name "*.bitmap" >actual &&
 237         test_must_be_empty actual
 238 '
 239
 240 objdir=.git/objects
 241 midx=$objdir/pack/multi-pack-index
 242
 243 test_expect_success 'setup for --write-midx tests' '
 244         git init midx &&
 245         (
 246                 cd midx &&
 247                 git config core.multiPackIndex true &&
 248
 249                 test_commit base
 250         )
 251 '
 252
 253 test_expect_success '--write-midx unchanged' '
 254         (
 255                 cd midx &&
 256                 GIT_TEST_MULTI_PACK_INDEX=0 git repack &&
 257                 test_path_is_missing $midx &&
 258                 test_path_is_missing $midx-*.bitmap &&
 259
 260                 GIT_TEST_MULTI_PACK_INDEX=0 git repack --write-midx &&
 261
 262                 test_path_is_file $midx &&
 263                 test_path_is_missing $midx-*.bitmap &&
 264                 test_midx_consistent $objdir
 265         )
 266 '
 267
 268 test_expect_success '--write-midx with a new pack' '
 269         (
 270                 cd midx &&
 271                 test_commit loose &&
 272
 273                 GIT_TEST_MULTI_PACK_INDEX=0 git repack --write-midx &&
 274
 275                 test_path_is_file $midx &&
 276                 test_path_is_missing $midx-*.bitmap &&
 277                 test_midx_consistent $objdir
 278         )
 279 '
 280
 281 test_expect_success '--write-midx with -b' '
 282         (
 283                 cd midx &&
 284                 GIT_TEST_MULTI_PACK_INDEX=0 git repack -mb &&
 285
 286                 test_path_is_file $midx &&
 287                 test_path_is_file $midx-*.bitmap &&
 288                 test_midx_consistent $objdir
 289         )
 290 '
 291
 292 test_expect_success '--write-midx with -d' '
 293         (
 294                 cd midx &&
 295                 test_commit repack &&
 296
 297                 GIT_TEST_MULTI_PACK_INDEX=0 git repack -Ad --write-midx &&
 298
 299                 test_path_is_file $midx &&
 300                 test_path_is_missing $midx-*.bitmap &&
 301                 test_midx_consistent $objdir
 302         )
 303 '
 304
 305 test_expect_success 'cleans up MIDX when appropriate' '
 306         (
 307                 cd midx &&
 308
 309                 test_commit repack-2 &&
 310                 GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adb --write-midx &&
 311
 312                 checksum=$(midx_checksum $objdir) &&
 313                 test_path_is_file $midx &&
 314                 test_path_is_file $midx-$checksum.bitmap &&
 315
 316                 test_commit repack-3 &&
 317                 GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adb --write-midx &&
 318
 319                 test_path_is_file $midx &&
 320                 test_path_is_missing $midx-$checksum.bitmap &&
 321                 test_path_is_file $midx-$(midx_checksum $objdir).bitmap &&
 322
 323                 test_commit repack-4 &&
 324                 GIT_TEST_MULTI_PACK_INDEX=0 git repack -Adb &&
 325
 326                 find $objdir/pack -type f -name "multi-pack-index*" >files &&
 327                 test_must_be_empty files
 328         )
 329 '
 330
 331 test_expect_success '--write-midx with preferred bitmap tips' '
 332         git init midx-preferred-tips &&
 333         test_when_finished "rm -fr midx-preferred-tips" &&
 334         (
 335                 cd midx-preferred-tips &&
 336
 337                 test_commit_bulk --message="%s" 103 &&
 338
 339                 git log --format="%H" >commits.raw &&
 340                 sort <commits.raw >commits &&
 341
 342                 git log --format="create refs/tags/%s/%s %H" HEAD >refs &&
 343                 git update-ref --stdin <refs &&
 344
 345                 git repack --write-midx --write-bitmap-index &&
 346                 test_path_is_file $midx &&
 347                 test_path_is_file $midx-$(midx_checksum $objdir).bitmap &&
 348
 349                 test-tool bitmap list-commits | sort >bitmaps &&
 350                 comm -13 bitmaps commits >before &&
 351                 test_line_count = 1 before &&
 352
 353                 rm -fr $midx-$(midx_checksum $objdir).bitmap &&
 354                 rm -fr $midx &&
 355
 356                 # instead of constructing the snapshot ourselves (c.f., the test
 357                 # "write a bitmap with --refs-snapshot (preferred tips)" in
 358                 # t5326), mark the missing commit as preferred by adding it to
 359                 # the pack.preferBitmapTips configuration.
 360                 git for-each-ref --format="%(refname:rstrip=1)" \
 361                         --points-at="$(cat before)" >missing &&
 362                 git config pack.preferBitmapTips "$(cat missing)" &&
 363                 git repack --write-midx --write-bitmap-index &&
 364
 365                 test-tool bitmap list-commits | sort >bitmaps &&
 366                 comm -13 bitmaps commits >after &&
 367
 368                 ! test_cmp before after
 369         )
 370 '
 371
 372 test_expect_success '--write-midx -b packs non-kept objects' '
 373         GIT_TRACE2_EVENT="$(pwd)/trace.txt" \
 374                 git repack --write-midx -a -b &&
 375         test_subcommand_inexact git pack-objects --honor-pack-keep <trace.txt
 376 '
 377
 378 test_expect_success TTY '--quiet disables progress' '
 379         test_terminal env GIT_PROGRESS_DELAY=0 \
 380                 git -C midx repack -ad --quiet --write-midx 2>stderr &&
 381         test_must_be_empty stderr
 382 '
 383
 384 test_done