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-rwxr-xr-xt/t5319-multi-pack-index.sh1018
1 files changed, 1018 insertions, 0 deletions
diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh
new file mode 100755
index 0000000..b5f9b10
--- /dev/null
+++ b/t/t5319-multi-pack-index.sh
@@ -0,0 +1,1018 @@
+#!/bin/sh
+
+test_description='multi-pack-indexes'
+. ./test-lib.sh
+
+GIT_TEST_MULTI_PACK_INDEX=0
+objdir=.git/objects
+
+HASH_LEN=$(test_oid rawsz)
+
+midx_read_expect () {
+ NUM_PACKS=$1
+ NUM_OBJECTS=$2
+ NUM_CHUNKS=$3
+ OBJECT_DIR=$4
+ EXTRA_CHUNKS="$5"
+ {
+ cat <<-EOF &&
+ header: 4d494458 1 $HASH_LEN $NUM_CHUNKS $NUM_PACKS
+ chunks: pack-names oid-fanout oid-lookup object-offsets$EXTRA_CHUNKS
+ num_objects: $NUM_OBJECTS
+ packs:
+ EOF
+ if test $NUM_PACKS -ge 1
+ then
+ ls $OBJECT_DIR/pack/ | grep idx | sort
+ fi &&
+ printf "object-dir: $OBJECT_DIR\n"
+ } >expect &&
+ test-tool read-midx $OBJECT_DIR >actual &&
+ test_cmp expect actual
+}
+
+test_expect_success 'setup' '
+ test_oid_cache <<-EOF
+ idxoff sha1:2999
+ idxoff sha256:3739
+
+ packnameoff sha1:652
+ packnameoff sha256:940
+
+ fanoutoff sha1:1
+ fanoutoff sha256:3
+ EOF
+'
+
+test_expect_success "don't write midx with no packs" '
+ test_must_fail git multi-pack-index --object-dir=. write &&
+ test_path_is_missing pack/multi-pack-index
+'
+
+test_expect_success SHA1 'warn if a midx contains no oid' '
+ cp "$TEST_DIRECTORY"/t5319/no-objects.midx $objdir/pack/multi-pack-index &&
+ test_must_fail git multi-pack-index verify &&
+ rm $objdir/pack/multi-pack-index
+'
+
+generate_objects () {
+ i=$1
+ iii=$(printf '%03i' $i)
+ {
+ test-tool genrandom "bar" 200 &&
+ test-tool genrandom "baz $iii" 50
+ } >wide_delta_$iii &&
+ {
+ test-tool genrandom "foo"$i 100 &&
+ test-tool genrandom "foo"$(( $i + 1 )) 100 &&
+ test-tool genrandom "foo"$(( $i + 2 )) 100
+ } >deep_delta_$iii &&
+ {
+ echo $iii &&
+ test-tool genrandom "$iii" 8192
+ } >file_$iii &&
+ git update-index --add file_$iii deep_delta_$iii wide_delta_$iii
+}
+
+commit_and_list_objects () {
+ {
+ echo 101 &&
+ test-tool genrandom 100 8192;
+ } >file_101 &&
+ git update-index --add file_101 &&
+ tree=$(git write-tree) &&
+ commit=$(git commit-tree $tree -p HEAD</dev/null) &&
+ {
+ echo $tree &&
+ git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
+ } >obj-list &&
+ git reset --hard $commit
+}
+
+test_expect_success 'create objects' '
+ test_commit initial &&
+ for i in $(test_seq 1 5)
+ do
+ generate_objects $i || return 1
+ done &&
+ commit_and_list_objects
+'
+
+test_expect_success 'write midx with one v1 pack' '
+ pack=$(git pack-objects --index-version=1 $objdir/pack/test <obj-list) &&
+ test_when_finished rm $objdir/pack/test-$pack.pack \
+ $objdir/pack/test-$pack.idx $objdir/pack/multi-pack-index &&
+ git multi-pack-index --object-dir=$objdir write &&
+ midx_read_expect 1 18 4 $objdir
+'
+
+midx_git_two_modes () {
+ git -c core.multiPackIndex=false $1 >expect &&
+ git -c core.multiPackIndex=true $1 >actual &&
+ if [ "$2" = "sorted" ]
+ then
+ sort <expect >expect.sorted &&
+ mv expect.sorted expect &&
+ sort <actual >actual.sorted &&
+ mv actual.sorted actual
+ fi &&
+ test_cmp expect actual
+}
+
+compare_results_with_midx () {
+ MSG=$1
+ test_expect_success "check normal git operations: $MSG" '
+ midx_git_two_modes "rev-list --objects --all" &&
+ midx_git_two_modes "log --raw" &&
+ midx_git_two_modes "count-objects --verbose" &&
+ midx_git_two_modes "cat-file --batch-all-objects --batch-check" &&
+ midx_git_two_modes "cat-file --batch-all-objects --batch-check --unordered" sorted
+ '
+}
+
+test_expect_success 'write midx with one v2 pack' '
+ git pack-objects --index-version=2,0x40 $objdir/pack/test <obj-list &&
+ git multi-pack-index --object-dir=$objdir write &&
+ midx_read_expect 1 18 4 $objdir
+'
+
+compare_results_with_midx "one v2 pack"
+
+test_expect_success 'corrupt idx reports errors' '
+ idx=$(test-tool read-midx $objdir | grep "\.idx\$") &&
+ mv $objdir/pack/$idx backup-$idx &&
+ test_when_finished "mv backup-\$idx \$objdir/pack/\$idx" &&
+
+ # This is the minimum size for a sha-1 based .idx; this lets
+ # us pass perfunctory tests, but anything that actually opens and reads
+ # the idx file will complain.
+ test_copy_bytes 1064 <backup-$idx >$objdir/pack/$idx &&
+
+ git -c core.multiPackIndex=true rev-list --objects --all 2>err &&
+ grep "index unavailable" err
+'
+
+test_expect_success 'add more objects' '
+ for i in $(test_seq 6 10)
+ do
+ generate_objects $i || return 1
+ done &&
+ commit_and_list_objects
+'
+
+test_expect_success 'write midx with two packs' '
+ git pack-objects --index-version=1 $objdir/pack/test-2 <obj-list &&
+ git multi-pack-index --object-dir=$objdir write &&
+ midx_read_expect 2 34 4 $objdir
+'
+
+compare_results_with_midx "two packs"
+
+test_expect_success 'write midx with --stdin-packs' '
+ rm -fr $objdir/pack/multi-pack-index &&
+
+ idx="$(find $objdir/pack -name "test-2-*.idx")" &&
+ basename "$idx" >in &&
+
+ git multi-pack-index write --stdin-packs <in &&
+
+ test-tool read-midx $objdir | grep "\.idx$" >packs &&
+
+ test_cmp packs in
+'
+
+compare_results_with_midx "mixed mode (one pack + extra)"
+
+test_expect_success 'write progress off for redirected stderr' '
+ git multi-pack-index --object-dir=$objdir write 2>err &&
+ test_line_count = 0 err
+'
+
+test_expect_success 'write force progress on for stderr' '
+ GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir write --progress 2>err &&
+ test_file_not_empty err
+'
+
+test_expect_success 'write with the --no-progress option' '
+ GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir write --no-progress 2>err &&
+ test_line_count = 0 err
+'
+
+test_expect_success 'add more packs' '
+ for j in $(test_seq 11 20)
+ do
+ generate_objects $j &&
+ commit_and_list_objects &&
+ git pack-objects --index-version=2 $objdir/pack/test-pack <obj-list || return 1
+ done
+'
+
+compare_results_with_midx "mixed mode (two packs + extra)"
+
+test_expect_success 'write midx with twelve packs' '
+ git multi-pack-index --object-dir=$objdir write &&
+ midx_read_expect 12 74 4 $objdir
+'
+
+compare_results_with_midx "twelve packs"
+
+test_expect_success 'multi-pack-index *.rev cleanup with --object-dir' '
+ git init repo &&
+ git clone -s repo alternate &&
+
+ test_when_finished "rm -rf repo alternate" &&
+
+ (
+ cd repo &&
+ test_commit base &&
+ git repack -d
+ ) &&
+
+ ours="alternate/.git/objects/pack/multi-pack-index-123.rev" &&
+ theirs="repo/.git/objects/pack/multi-pack-index-abc.rev" &&
+ touch "$ours" "$theirs" &&
+
+ (
+ cd alternate &&
+ git multi-pack-index --object-dir ../repo/.git/objects write
+ ) &&
+
+ # writing a midx in "repo" should not remove the .rev file in the
+ # alternate
+ test_path_is_file repo/.git/objects/pack/multi-pack-index &&
+ test_path_is_file $ours &&
+ test_path_is_missing $theirs
+'
+
+test_expect_success 'warn on improper hash version' '
+ git init --object-format=sha1 sha1 &&
+ (
+ cd sha1 &&
+ git config core.multiPackIndex true &&
+ test_commit 1 &&
+ git repack -a &&
+ git multi-pack-index write &&
+ mv .git/objects/pack/multi-pack-index ../mpi-sha1
+ ) &&
+ git init --object-format=sha256 sha256 &&
+ (
+ cd sha256 &&
+ git config core.multiPackIndex true &&
+ test_commit 1 &&
+ git repack -a &&
+ git multi-pack-index write &&
+ mv .git/objects/pack/multi-pack-index ../mpi-sha256
+ ) &&
+ (
+ cd sha1 &&
+ mv ../mpi-sha256 .git/objects/pack/multi-pack-index &&
+ git log -1 2>err &&
+ test_i18ngrep "multi-pack-index hash version 2 does not match version 1" err
+ ) &&
+ (
+ cd sha256 &&
+ mv ../mpi-sha1 .git/objects/pack/multi-pack-index &&
+ git log -1 2>err &&
+ test_i18ngrep "multi-pack-index hash version 1 does not match version 2" err
+ )
+'
+
+test_expect_success 'midx picks objects from preferred pack' '
+ test_when_finished rm -rf preferred.git &&
+ git init --bare preferred.git &&
+ (
+ cd preferred.git &&
+
+ a=$(echo "a" | git hash-object -w --stdin) &&
+ b=$(echo "b" | git hash-object -w --stdin) &&
+ c=$(echo "c" | git hash-object -w --stdin) &&
+
+ # Set up two packs, duplicating the object "B" at different
+ # offsets.
+ #
+ # Note that the "BC" pack (the one we choose as preferred) sorts
+ # lexically after the "AB" pack, meaning that omitting the
+ # --preferred-pack argument would cause this test to fail (since
+ # the MIDX code would select the copy of "b" in the "AB" pack).
+ git pack-objects objects/pack/test-AB <<-EOF &&
+ $a
+ $b
+ EOF
+ bc=$(git pack-objects objects/pack/test-BC <<-EOF
+ $b
+ $c
+ EOF
+ ) &&
+
+ git multi-pack-index --object-dir=objects \
+ write --preferred-pack=test-BC-$bc.idx 2>err &&
+ test_must_be_empty err &&
+
+ test-tool read-midx --show-objects objects >out &&
+
+ ofs=$(git show-index <objects/pack/test-BC-$bc.idx | grep $b |
+ cut -d" " -f1) &&
+ printf "%s %s\tobjects/pack/test-BC-%s.pack\n" \
+ "$b" "$ofs" "$bc" >expect &&
+ grep ^$b out >actual &&
+
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'preferred packs must be non-empty' '
+ test_when_finished rm -rf preferred.git &&
+ git init preferred.git &&
+ (
+ cd preferred.git &&
+
+ test_commit base &&
+ git repack -ad &&
+
+ empty="$(git pack-objects $objdir/pack/pack </dev/null)" &&
+
+ test_must_fail git multi-pack-index write \
+ --preferred-pack=pack-$empty.pack 2>err &&
+ grep "with no objects" err
+ )
+'
+
+test_expect_success 'verify multi-pack-index success' '
+ git multi-pack-index verify --object-dir=$objdir
+'
+
+test_expect_success 'verify progress off for redirected stderr' '
+ git multi-pack-index verify --object-dir=$objdir 2>err &&
+ test_line_count = 0 err
+'
+
+test_expect_success 'verify force progress on for stderr' '
+ git multi-pack-index verify --object-dir=$objdir --progress 2>err &&
+ test_file_not_empty err
+'
+
+test_expect_success 'verify with the --no-progress option' '
+ git multi-pack-index verify --object-dir=$objdir --no-progress 2>err &&
+ test_line_count = 0 err
+'
+
+# usage: corrupt_midx_and_verify <pos> <data> <objdir> <string>
+corrupt_midx_and_verify() {
+ POS=$1 &&
+ DATA="${2:-\0}" &&
+ OBJDIR=$3 &&
+ GREPSTR="$4" &&
+ COMMAND="$5" &&
+ if test -z "$COMMAND"
+ then
+ COMMAND="git multi-pack-index verify --object-dir=$OBJDIR"
+ fi &&
+ FILE=$OBJDIR/pack/multi-pack-index &&
+ chmod a+w $FILE &&
+ test_when_finished mv midx-backup $FILE &&
+ cp $FILE midx-backup &&
+ printf "$DATA" | dd of="$FILE" bs=1 seek="$POS" conv=notrunc &&
+ test_must_fail $COMMAND 2>test_err &&
+ grep -v "^+" test_err >err &&
+ test_i18ngrep "$GREPSTR" err
+}
+
+test_expect_success 'verify bad signature' '
+ corrupt_midx_and_verify 0 "\00" $objdir \
+ "multi-pack-index signature"
+'
+
+NUM_OBJECTS=74
+MIDX_BYTE_VERSION=4
+MIDX_BYTE_OID_VERSION=5
+MIDX_BYTE_CHUNK_COUNT=6
+MIDX_HEADER_SIZE=12
+MIDX_BYTE_CHUNK_ID=$MIDX_HEADER_SIZE
+MIDX_BYTE_CHUNK_OFFSET=$(($MIDX_HEADER_SIZE + 4))
+MIDX_NUM_CHUNKS=5
+MIDX_CHUNK_LOOKUP_WIDTH=12
+MIDX_OFFSET_PACKNAMES=$(($MIDX_HEADER_SIZE + \
+ $MIDX_NUM_CHUNKS * $MIDX_CHUNK_LOOKUP_WIDTH))
+MIDX_BYTE_PACKNAME_ORDER=$(($MIDX_OFFSET_PACKNAMES + 2))
+MIDX_OFFSET_OID_FANOUT=$(($MIDX_OFFSET_PACKNAMES + $(test_oid packnameoff)))
+MIDX_OID_FANOUT_WIDTH=4
+MIDX_BYTE_OID_FANOUT_ORDER=$((MIDX_OFFSET_OID_FANOUT + 250 * $MIDX_OID_FANOUT_WIDTH + $(test_oid fanoutoff)))
+MIDX_OFFSET_OID_LOOKUP=$(($MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
+MIDX_BYTE_OID_LOOKUP=$(($MIDX_OFFSET_OID_LOOKUP + 16 * $HASH_LEN))
+MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
+MIDX_OFFSET_WIDTH=8
+MIDX_BYTE_PACK_INT_ID=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 2))
+MIDX_BYTE_OFFSET=$(($MIDX_OFFSET_OBJECT_OFFSETS + 16 * $MIDX_OFFSET_WIDTH + 6))
+
+test_expect_success 'verify bad version' '
+ corrupt_midx_and_verify $MIDX_BYTE_VERSION "\00" $objdir \
+ "multi-pack-index version"
+'
+
+test_expect_success 'verify bad OID version' '
+ corrupt_midx_and_verify $MIDX_BYTE_OID_VERSION "\03" $objdir \
+ "hash version"
+'
+
+test_expect_success 'verify truncated chunk count' '
+ corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\01" $objdir \
+ "final chunk has non-zero id"
+'
+
+test_expect_success 'verify extended chunk count' '
+ corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
+ "terminating chunk id appears earlier than expected"
+'
+
+test_expect_success 'verify missing required chunk' '
+ corrupt_midx_and_verify $MIDX_BYTE_CHUNK_ID "\01" $objdir \
+ "missing required"
+'
+
+test_expect_success 'verify invalid chunk offset' '
+ corrupt_midx_and_verify $MIDX_BYTE_CHUNK_OFFSET "\01" $objdir \
+ "improper chunk offset(s)"
+'
+
+test_expect_success 'verify packnames out of order' '
+ corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "z" $objdir \
+ "pack names out of order"
+'
+
+test_expect_success 'verify packnames out of order' '
+ corrupt_midx_and_verify $MIDX_BYTE_PACKNAME_ORDER "a" $objdir \
+ "failed to load pack"
+'
+
+test_expect_success 'verify oid fanout out of order' '
+ corrupt_midx_and_verify $MIDX_BYTE_OID_FANOUT_ORDER "\01" $objdir \
+ "oid fanout out of order"
+'
+
+test_expect_success 'verify oid lookup out of order' '
+ corrupt_midx_and_verify $MIDX_BYTE_OID_LOOKUP "\00" $objdir \
+ "oid lookup out of order"
+'
+
+test_expect_success 'verify incorrect pack-int-id' '
+ corrupt_midx_and_verify $MIDX_BYTE_PACK_INT_ID "\07" $objdir \
+ "bad pack-int-id"
+'
+
+test_expect_success 'verify incorrect offset' '
+ corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
+ "incorrect object offset"
+'
+
+test_expect_success 'git-fsck incorrect offset' '
+ corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
+ "incorrect object offset" \
+ "git -c core.multiPackIndex=true fsck" &&
+ test_unconfig core.multiPackIndex &&
+ test_must_fail git fsck &&
+ git -c core.multiPackIndex=false fsck
+'
+
+test_expect_success 'corrupt MIDX is not reused' '
+ corrupt_midx_and_verify $MIDX_BYTE_OFFSET "\377" $objdir \
+ "incorrect object offset" &&
+ git multi-pack-index write 2>err &&
+ test_i18ngrep checksum.mismatch err &&
+ git multi-pack-index verify
+'
+
+test_expect_success 'verify incorrect checksum' '
+ pos=$(($(wc -c <$objdir/pack/multi-pack-index) - 10)) &&
+ corrupt_midx_and_verify $pos \
+ "\377\377\377\377\377\377\377\377\377\377" \
+ $objdir "incorrect checksum"
+'
+
+test_expect_success 'repack progress off for redirected stderr' '
+ GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack 2>err &&
+ test_line_count = 0 err
+'
+
+test_expect_success 'repack force progress on for stderr' '
+ GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack --progress 2>err &&
+ test_file_not_empty err
+'
+
+test_expect_success 'repack with the --no-progress option' '
+ GIT_PROGRESS_DELAY=0 git multi-pack-index --object-dir=$objdir repack --no-progress 2>err &&
+ test_line_count = 0 err
+'
+
+test_expect_success 'repack removes multi-pack-index when deleting packs' '
+ test_path_is_file $objdir/pack/multi-pack-index &&
+ # Set GIT_TEST_MULTI_PACK_INDEX to 0 to avoid writing a new
+ # multi-pack-index after repacking, but set "core.multiPackIndex" to
+ # true so that "git repack" can read the existing MIDX.
+ GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -adf &&
+ test_path_is_missing $objdir/pack/multi-pack-index
+'
+
+test_expect_success 'repack preserves multi-pack-index when creating packs' '
+ git init preserve &&
+ test_when_finished "rm -fr preserve" &&
+ (
+ cd preserve &&
+ packdir=.git/objects/pack &&
+ midx=$packdir/multi-pack-index &&
+
+ test_commit 1 &&
+ pack1=$(git pack-objects --all $packdir/pack) &&
+ touch $packdir/pack-$pack1.keep &&
+ test_commit 2 &&
+ pack2=$(git pack-objects --revs $packdir/pack) &&
+ touch $packdir/pack-$pack2.keep &&
+
+ git multi-pack-index write &&
+ cp $midx $midx.bak &&
+
+ cat >pack-input <<-EOF &&
+ HEAD
+ ^HEAD~1
+ EOF
+ test_commit 3 &&
+ pack3=$(git pack-objects --revs $packdir/pack <pack-input) &&
+ test_commit 4 &&
+ pack4=$(git pack-objects --revs $packdir/pack <pack-input) &&
+
+ GIT_TEST_MULTI_PACK_INDEX=0 git -c core.multiPackIndex repack -ad &&
+ ls -la $packdir &&
+ test_path_is_file $packdir/pack-$pack1.pack &&
+ test_path_is_file $packdir/pack-$pack2.pack &&
+ test_path_is_missing $packdir/pack-$pack3.pack &&
+ test_path_is_missing $packdir/pack-$pack4.pack &&
+ test_cmp_bin $midx.bak $midx
+ )
+'
+
+compare_results_with_midx "after repack"
+
+test_expect_success 'multi-pack-index and pack-bitmap' '
+ GIT_TEST_MULTI_PACK_INDEX_WRITE_BITMAP=0 \
+ git -c repack.writeBitmaps=true repack -ad &&
+ git multi-pack-index write &&
+ git rev-list --test-bitmap HEAD
+'
+
+test_expect_success 'multi-pack-index and alternates' '
+ git init --bare alt.git &&
+ echo $(pwd)/alt.git/objects >.git/objects/info/alternates &&
+ echo content1 >file1 &&
+ altblob=$(GIT_DIR=alt.git git hash-object -w file1) &&
+ git cat-file blob $altblob &&
+ git rev-list --all
+'
+
+compare_results_with_midx "with alternate (local midx)"
+
+test_expect_success 'multi-pack-index in an alternate' '
+ mv .git/objects/pack/* alt.git/objects/pack &&
+ test_commit add_local_objects &&
+ git repack --local &&
+ git multi-pack-index write &&
+ midx_read_expect 1 3 4 $objdir &&
+ git reset --hard HEAD~1 &&
+ rm -f .git/objects/pack/*
+'
+
+compare_results_with_midx "with alternate (remote midx)"
+
+# usage: corrupt_data <file> <pos> [<data>]
+corrupt_data () {
+ file=$1
+ pos=$2
+ data="${3:-\0}"
+ printf "$data" | dd of="$file" bs=1 seek="$pos" conv=notrunc
+}
+
+# Force 64-bit offsets by manipulating the idx file.
+# This makes the IDX file _incorrect_ so be careful to clean up after!
+test_expect_success 'force some 64-bit offsets with pack-objects' '
+ mkdir objects64 &&
+ mkdir objects64/pack &&
+ for i in $(test_seq 1 11)
+ do
+ generate_objects 11 || return 1
+ done &&
+ commit_and_list_objects &&
+ pack64=$(git pack-objects --index-version=2,0x40 objects64/pack/test-64 <obj-list) &&
+ idx64=objects64/pack/test-64-$pack64.idx &&
+ chmod u+w $idx64 &&
+ corrupt_data $idx64 $(test_oid idxoff) "\02" &&
+ # objects64 is not a real repository, but can serve as an alternate
+ # anyway so we can write a MIDX into it
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+ ( cd ../objects64 && pwd ) >.git/objects/info/alternates &&
+ midx64=$(git multi-pack-index --object-dir=../objects64 write)
+ ) &&
+ midx_read_expect 1 63 5 objects64 " large-offsets"
+'
+
+test_expect_success 'verify multi-pack-index with 64-bit offsets' '
+ git multi-pack-index verify --object-dir=objects64
+'
+
+NUM_OBJECTS=63
+MIDX_OFFSET_OID_FANOUT=$((MIDX_OFFSET_PACKNAMES + 54))
+MIDX_OFFSET_OID_LOOKUP=$((MIDX_OFFSET_OID_FANOUT + 256 * $MIDX_OID_FANOUT_WIDTH))
+MIDX_OFFSET_OBJECT_OFFSETS=$(($MIDX_OFFSET_OID_LOOKUP + $NUM_OBJECTS * $HASH_LEN))
+MIDX_OFFSET_LARGE_OFFSETS=$(($MIDX_OFFSET_OBJECT_OFFSETS + $NUM_OBJECTS * $MIDX_OFFSET_WIDTH))
+MIDX_BYTE_LARGE_OFFSET=$(($MIDX_OFFSET_LARGE_OFFSETS + 3))
+
+test_expect_success 'verify incorrect 64-bit offset' '
+ corrupt_midx_and_verify $MIDX_BYTE_LARGE_OFFSET "\07" objects64 \
+ "incorrect object offset"
+'
+
+test_expect_success 'setup expire tests' '
+ mkdir dup &&
+ (
+ cd dup &&
+ git init &&
+ test-tool genrandom "data" 4096 >large_file.txt &&
+ git update-index --add large_file.txt &&
+ for i in $(test_seq 1 20)
+ do
+ test_commit $i || exit 1
+ done &&
+ git branch A HEAD &&
+ git branch B HEAD~8 &&
+ git branch C HEAD~13 &&
+ git branch D HEAD~16 &&
+ git branch E HEAD~18 &&
+ git pack-objects --revs .git/objects/pack/pack-A <<-EOF &&
+ refs/heads/A
+ ^refs/heads/B
+ EOF
+ git pack-objects --revs .git/objects/pack/pack-B <<-EOF &&
+ refs/heads/B
+ ^refs/heads/C
+ EOF
+ git pack-objects --revs .git/objects/pack/pack-C <<-EOF &&
+ refs/heads/C
+ ^refs/heads/D
+ EOF
+ git pack-objects --revs .git/objects/pack/pack-D <<-EOF &&
+ refs/heads/D
+ ^refs/heads/E
+ EOF
+ git pack-objects --revs .git/objects/pack/pack-E <<-EOF &&
+ refs/heads/E
+ EOF
+ git multi-pack-index write &&
+ cp -r .git/objects/pack .git/objects/pack-backup
+ )
+'
+
+test_expect_success 'expire does not remove any packs' '
+ (
+ cd dup &&
+ ls .git/objects/pack >expect &&
+ git multi-pack-index expire &&
+ ls .git/objects/pack >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'expire progress off for redirected stderr' '
+ (
+ cd dup &&
+ git multi-pack-index expire 2>err &&
+ test_line_count = 0 err
+ )
+'
+
+test_expect_success 'expire force progress on for stderr' '
+ (
+ cd dup &&
+ GIT_PROGRESS_DELAY=0 git multi-pack-index expire --progress 2>err &&
+ test_file_not_empty err
+ )
+'
+
+test_expect_success 'expire with the --no-progress option' '
+ (
+ cd dup &&
+ GIT_PROGRESS_DELAY=0 git multi-pack-index expire --no-progress 2>err &&
+ test_line_count = 0 err
+ )
+'
+
+test_expect_success 'expire removes unreferenced packs' '
+ (
+ cd dup &&
+ git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
+ refs/heads/A
+ ^refs/heads/C
+ EOF
+ git multi-pack-index write &&
+ ls .git/objects/pack | grep -v -e pack-[AB] >expect &&
+ git multi-pack-index expire &&
+ ls .git/objects/pack >actual &&
+ test_cmp expect actual &&
+ ls .git/objects/pack/ | grep idx >expect-idx &&
+ test-tool read-midx .git/objects | grep idx >actual-midx &&
+ test_cmp expect-idx actual-midx &&
+ git multi-pack-index verify &&
+ git fsck
+ )
+'
+
+test_expect_success 'repack with minimum size does not alter existing packs' '
+ (
+ cd dup &&
+ rm -rf .git/objects/pack &&
+ mv .git/objects/pack-backup .git/objects/pack &&
+ test-tool chmtime =-5 .git/objects/pack/pack-D* &&
+ test-tool chmtime =-4 .git/objects/pack/pack-C* &&
+ test-tool chmtime =-3 .git/objects/pack/pack-B* &&
+ test-tool chmtime =-2 .git/objects/pack/pack-A* &&
+ ls .git/objects/pack >expect &&
+ MINSIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 1) &&
+ git multi-pack-index repack --batch-size=$MINSIZE &&
+ ls .git/objects/pack >actual &&
+ test_cmp expect actual
+ )
+'
+
+test_expect_success 'repack respects repack.packKeptObjects=false' '
+ test_when_finished rm -f dup/.git/objects/pack/*keep &&
+ (
+ cd dup &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 5 idx-list &&
+ ls .git/objects/pack/*.pack | sed "s/\.pack/.keep/" >keep-list &&
+ test_line_count = 5 keep-list &&
+ for keep in $(cat keep-list)
+ do
+ touch $keep || return 1
+ done &&
+ git multi-pack-index repack --batch-size=0 &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 5 idx-list &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 5 midx-list &&
+ THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | sed -n 3p) &&
+ BATCH_SIZE=$((THIRD_SMALLEST_SIZE + 1)) &&
+ git multi-pack-index repack --batch-size=$BATCH_SIZE &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 5 idx-list &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 5 midx-list
+ )
+'
+
+test_expect_success 'repack creates a new pack' '
+ (
+ cd dup &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 5 idx-list &&
+ THIRD_SMALLEST_SIZE=$(test-tool path-utils file-size .git/objects/pack/*pack | sort -n | head -n 3 | tail -n 1) &&
+ BATCH_SIZE=$(($THIRD_SMALLEST_SIZE + 1)) &&
+ git multi-pack-index repack --batch-size=$BATCH_SIZE &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 6 idx-list &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 6 midx-list
+ )
+'
+
+test_expect_success 'repack (all) ignores cruft pack' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+ test_commit --no-tag unreachable &&
+
+ git reset --hard base &&
+ git reflog expire --all --expire=all &&
+ git repack --cruft -d &&
+
+ git multi-pack-index write &&
+
+ find $objdir/pack | sort >before &&
+ git multi-pack-index repack --batch-size=0 &&
+ find $objdir/pack | sort >after &&
+
+ test_cmp before after
+ )
+'
+
+test_expect_success 'repack (--batch-size) ignores cruft pack' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit_bulk 5 &&
+ test_commit --no-tag unreachable &&
+
+ git reset --hard HEAD^ &&
+ git reflog expire --all --expire=all &&
+ git repack --cruft -d &&
+
+ test_commit four &&
+
+ find $objdir/pack -type f -name "*.pack" | sort >before &&
+ git repack -d &&
+ find $objdir/pack -type f -name "*.pack" | sort >after &&
+
+ pack="$(comm -13 before after)" &&
+ test_file_size "$pack" >sz &&
+ # Set --batch-size to twice the size of the pack created
+ # in the previous step, since this is enough to
+ # accommodate it and the cruft pack.
+ #
+ # This means that the MIDX machinery *could* combine the
+ # new and cruft packs together.
+ #
+ # We ensure that it does not below.
+ batch="$((($(cat sz) * 2)))" &&
+
+ git multi-pack-index write &&
+
+ find $objdir/pack | sort >before &&
+ git multi-pack-index repack --batch-size=$batch &&
+ find $objdir/pack | sort >after &&
+
+ test_cmp before after
+ )
+'
+
+test_expect_success 'expire removes repacked packs' '
+ (
+ cd dup &&
+ ls -al .git/objects/pack/*pack &&
+ ls -S .git/objects/pack/*pack | head -n 4 >expect &&
+ git multi-pack-index expire &&
+ ls -S .git/objects/pack/*pack >actual &&
+ test_cmp expect actual &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 4 midx-list
+ )
+'
+
+test_expect_success 'expire works when adding new packs' '
+ (
+ cd dup &&
+ git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
+ refs/heads/A
+ ^refs/heads/B
+ EOF
+ git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
+ refs/heads/B
+ ^refs/heads/C
+ EOF
+ git pack-objects --revs .git/objects/pack/pack-combined <<-EOF &&
+ refs/heads/C
+ ^refs/heads/D
+ EOF
+ git multi-pack-index write &&
+ git pack-objects --revs .git/objects/pack/a-pack <<-EOF &&
+ refs/heads/D
+ ^refs/heads/E
+ EOF
+ git multi-pack-index write &&
+ git pack-objects --revs .git/objects/pack/z-pack <<-EOF &&
+ refs/heads/E
+ EOF
+ git multi-pack-index expire &&
+ ls .git/objects/pack/ | grep idx >expect &&
+ test-tool read-midx .git/objects | grep idx >actual &&
+ test_cmp expect actual &&
+ git multi-pack-index verify
+ )
+'
+
+test_expect_success 'expire respects .keep files' '
+ (
+ cd dup &&
+ git pack-objects --revs .git/objects/pack/pack-all <<-EOF &&
+ refs/heads/A
+ EOF
+ git multi-pack-index write &&
+ PACKA=$(ls .git/objects/pack/a-pack*\.pack | sed s/\.pack\$//) &&
+ touch $PACKA.keep &&
+ git multi-pack-index expire &&
+ test_path_is_file $PACKA.idx &&
+ test_path_is_file $PACKA.keep &&
+ test_path_is_file $PACKA.pack &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 2 midx-list
+ )
+'
+
+test_expect_success 'expiring unreferenced cruft pack retains pack' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ test_commit base &&
+ test_commit --no-tag unreachable &&
+ unreachable=$(git rev-parse HEAD) &&
+
+ git reset --hard base &&
+ git reflog expire --all --expire=all &&
+ git repack --cruft -d &&
+ mtimes="$(ls $objdir/pack/pack-*.mtimes)" &&
+
+ echo "base..$unreachable" >in &&
+ pack="$(git pack-objects --revs --delta-base-offset \
+ $objdir/pack/pack <in)" &&
+
+ # Preferring the contents of "$pack" will leave the
+ # cruft pack unreferenced (ie., none of the objects
+ # contained in the cruft pack will have their MIDX copy
+ # selected from the cruft pack).
+ git multi-pack-index write --preferred-pack="pack-$pack.pack" &&
+ git multi-pack-index expire &&
+
+ test_path_is_file "$mtimes"
+ )
+'
+
+test_expect_success 'repack --batch-size=0 repacks everything' '
+ cp -r dup dup2 &&
+ (
+ cd dup &&
+ rm .git/objects/pack/*.keep &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 2 idx-list &&
+ git multi-pack-index repack --batch-size=0 &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 3 idx-list &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 3 midx-list &&
+ git multi-pack-index expire &&
+ ls -al .git/objects/pack/*idx >idx-list &&
+ test_line_count = 1 idx-list &&
+ git multi-pack-index repack --batch-size=0 &&
+ ls -al .git/objects/pack/*idx >new-idx-list &&
+ test_cmp idx-list new-idx-list
+ )
+'
+
+test_expect_success 'repack --batch-size=<large> repacks everything' '
+ (
+ cd dup2 &&
+ rm .git/objects/pack/*.keep &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 2 idx-list &&
+ git multi-pack-index repack --batch-size=2000000 &&
+ ls .git/objects/pack/*idx >idx-list &&
+ test_line_count = 3 idx-list &&
+ test-tool read-midx .git/objects | grep idx >midx-list &&
+ test_line_count = 3 midx-list &&
+ git multi-pack-index expire &&
+ ls -al .git/objects/pack/*idx >idx-list &&
+ test_line_count = 1 idx-list
+ )
+'
+
+test_expect_success 'load reverse index when missing .idx, .pack' '
+ git init repo &&
+ test_when_finished "rm -fr repo" &&
+ (
+ cd repo &&
+
+ git config core.multiPackIndex true &&
+
+ test_commit base &&
+ git repack -ad &&
+ git multi-pack-index write &&
+
+ git rev-parse HEAD >tip &&
+ pack=$(ls .git/objects/pack/pack-*.pack) &&
+ idx=$(ls .git/objects/pack/pack-*.idx) &&
+
+ mv $idx $idx.bak &&
+ git cat-file --batch-check="%(objectsize:disk)" <tip &&
+
+ mv $idx.bak $idx &&
+
+ mv $pack $pack.bak &&
+ git cat-file --batch-check="%(objectsize:disk)" <tip
+ )
+'
+
+test_expect_success 'usage shown without sub-command' '
+ test_expect_code 129 git multi-pack-index 2>err &&
+ ! test_i18ngrep "unrecognized subcommand" err
+'
+
+test_expect_success 'complains when run outside of a repository' '
+ nongit test_must_fail git multi-pack-index write 2>err &&
+ grep "not a git repository" err
+'
+
+test_done