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d96075428a
git/t/t5319-multi-pack-index.sh
Derrick Stolee d96075428a multi-pack-index: use hash version byte 
Similar to the commit-graph format, the multi-pack-index format has a
byte in the header intended to track the hash version used to write the
file. This allows one to interpret the hash length without having the
context of the repository config specifying the hash length. This was
not modified as part of the SHA-256 work because the hash length was
automatically up-shifted due to that config.

Since we have this byte available, we can make the file formats more
obviously incompatible instead of relying on other context from the
repository.

Add a new oid_version() method in midx.c similar to the one in
commit-graph.c. This is specifically made separate from that
implementation to avoid artificially linking the formats.

The test impact requires a few more things than the corresponding change
in the commit-graph format. Specifically, 'test-tool read-midx' was not
writing anything about this header value to output. Since the value
available in 'struct multi_pack_index' is hash_len instead of a version
value, we output "20" or "32" instead of "1" or "2".

Since we want a user to not have their Git commands fail if their
multi-pack-index has the incorrect hash version compared to the
repository's hash version, we relax the die() to an error() in
load_multi_pack_index(). This has some effect on 'git multi-pack-index
verify' as we need to check that a failed parse of a file that exists is
actually a verify error. For that test that checks the hash version
matches, we change the corrupted byte from "2" to "3" to ensure the test
fails for both hash algorithms.

Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17 16:45:20 -07:00

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#!/bin/sh
test_description='multi-pack-indexes'
. ./test-lib.sh
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 $i
done &&
commit_and_list_objects
'
test_expect_success 'write midx with one v1 pack' '
pack=$(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 $objdir
'
compare_results_with_midx "one v2 pack"
test_expect_success 'corrupt idx not opened' '
idx=$(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 &&
test_must_be_empty err
'
test_expect_success 'add more objects' '
for i in $(test_seq 6 10)
do
generate_objects $i
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 $objdir
'
compare_results_with_midx "two packs"
test_expect_success 'write progress off for redirected stderr' '
git multi-pack-index --object-dir=$objdir write 2>err &&
test_line_count = 0 err
'
test_expect_success 'write force progress on for stderr' '
git multi-pack-index --object-dir=$objdir --progress write 2>err &&
test_file_not_empty err
'
test_expect_success 'write with the --no-progress option' '
git multi-pack-index --object-dir=$objdir --no-progress write 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 $objdir/pack/test-pack <obj-list
done
'
compare_results_with_midx "mixed mode (two packs + extra)"
test_expect_success 'write midx with twelve packs' '
git multi-pack-index --object-dir=$objdir write &&
midx_read_expect 12 74 4 $objdir
'
compare_results_with_midx "twelve packs"
test_expect_success 'warn on improper hash version' '
git init --object-format=sha1 sha1 &&
(
cd sha1 &&
git config core.multiPackIndex true &&
test_commit 1 &&
git repack -a &&
git multi-pack-index write &&
mv .git/objects/pack/multi-pack-index ../mpi-sha1
) &&
git init --object-format=sha256 sha256 &&
(
cd sha256 &&
git config core.multiPackIndex true &&
test_commit 1 &&
git repack -a &&
git multi-pack-index write &&
mv .git/objects/pack/multi-pack-index ../mpi-sha256
) &&
(
cd sha1 &&
mv ../mpi-sha256 .git/objects/pack/multi-pack-index &&
git log -1 2>err &&
test_i18ngrep "multi-pack-index hash version 2 does not match version 1" err
) &&
(
cd sha256 &&
mv ../mpi-sha1 .git/objects/pack/multi-pack-index &&
git log -1 2>err &&
test_i18ngrep "multi-pack-index hash version 1 does not match version 2" err
)
'
test_expect_success 'verify multi-pack-index success' '
git multi-pack-index verify --object-dir=$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 \
"missing required"
'
test_expect_success 'verify extended chunk count' '
corrupt_midx_and_verify $MIDX_BYTE_CHUNK_COUNT "\07" $objdir \
"terminating multi-pack-index 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 \
"invalid chunk offset (too large)"
'
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" $objdir \
"incorrect object offset" \
"git -c core.multipackindex=true fsck"
'
test_expect_success 'repack progress off for redirected stderr' '
git multi-pack-index --object-dir=$objdir repack 2>err &&
test_line_count = 0 err
'
test_expect_success 'repack force progress on for stderr' '
git multi-pack-index --object-dir=$objdir --progress repack 2>err &&
test_file_not_empty err
'
test_expect_success 'repack with the --no-progress option' '
git multi-pack-index --object-dir=$objdir --no-progress repack 2>err &&
test_line_count = 0 err
'
test_expect_success 'repack removes multi-pack-index' '
test_path_is_file $objdir/pack/multi-pack-index &&
GIT_TEST_MULTI_PACK_INDEX=0 git repack -adf &&
test_path_is_missing $objdir/pack/multi-pack-index
'
compare_results_with_midx "after repack"
test_expect_success 'multi-pack-index and pack-bitmap' '
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 $(test_seq 1 11)
do
generate_objects 11
done &&
commit_and_list_objects &&
pack64=$(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 $(test_oid idxoff) "\02" &&
midx64=$(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
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 multi-pack-index --progress expire 2>err &&
test_file_not_empty err
)
'
test_expect_success 'expire with the --no-progress option' '
(
cd dup &&
git multi-pack-index --no-progress expire 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 '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 &&
ls -S .git/objects/pack/a-pack* | grep $PACKA >a-pack-files &&
test_line_count = 3 a-pack-files &&
test-tool read-midx .git/objects | grep idx >midx-list &&
test_line_count = 2 midx-list
)
'
test_expect_success 'repack --batch-size=0 repacks everything' '
(
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_done
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