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t5300-pack-object.sh
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t5300-pack-object.sh
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#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
test_description='git pack-object
'
. ./test-lib.sh
TRASH=`pwd`
test_expect_success \
'setup' \
'rm -f .git/index*
perl -e "print \"a\" x 4096;" > a &&
perl -e "print \"b\" x 4096;" > b &&
perl -e "print \"c\" x 4096;" > c &&
git update-index --add a b c &&
cat c >d && echo foo >>d && git update-index --add d &&
tree=`git write-tree` &&
commit=`git commit-tree $tree </dev/null` && {
echo $tree &&
echo $commit &&
git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
} >obj-list && {
git diff-tree --root -p $commit &&
while read object
do
t=`git cat-file -t $object` &&
git cat-file $t $object || return 1
done <obj-list
} >expect'
test_expect_success \
'pack without delta' \
'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'
rm -fr .git2
mkdir .git2
test_expect_success \
'unpack without delta' \
"GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git init &&
git unpack-objects -n <test-1-${packname_1}.pack &&
git unpack-objects <test-1-${packname_1}.pack"
unset GIT_OBJECT_DIRECTORY
cd "$TRASH/.git2"
test_expect_success \
'check unpack without delta' \
'(cd ../.git && find objects -type f -print) |
while read path
do
cmp $path ../.git/$path || {
echo $path differs.
return 1
}
done'
cd "$TRASH"
test_expect_success \
'pack with REF_DELTA' \
'pwd &&
packname_2=$(git pack-objects test-2 <obj-list)'
rm -fr .git2
mkdir .git2
test_expect_success \
'unpack with REF_DELTA' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git init &&
git unpack-objects -n <test-2-${packname_2}.pack &&
git unpack-objects <test-2-${packname_2}.pack'
unset GIT_OBJECT_DIRECTORY
cd "$TRASH/.git2"
test_expect_success \
'check unpack with REF_DELTA' \
'(cd ../.git && find objects -type f -print) |
while read path
do
cmp $path ../.git/$path || {
echo $path differs.
return 1
}
done'
cd "$TRASH"
test_expect_success \
'pack with OFS_DELTA' \
'pwd &&
packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'
rm -fr .git2
mkdir .git2
test_expect_success \
'unpack with OFS_DELTA' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git init &&
git unpack-objects -n <test-3-${packname_3}.pack &&
git unpack-objects <test-3-${packname_3}.pack'
unset GIT_OBJECT_DIRECTORY
cd "$TRASH/.git2"
test_expect_success \
'check unpack with OFS_DELTA' \
'(cd ../.git && find objects -type f -print) |
while read path
do
cmp $path ../.git/$path || {
echo $path differs.
return 1
}
done'
cd "$TRASH"
test_expect_success 'compare delta flavors' '
perl -e '\''
defined($_ = -s $_) or die for @ARGV;
exit 1 if $ARGV[0] <= $ARGV[1];
'\'' test-2-$packname_2.pack test-3-$packname_3.pack
'
rm -fr .git2
mkdir .git2
test_expect_success \
'use packed objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git init &&
cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
git diff-tree --root -p $commit &&
while read object
do
t=`git cat-file -t $object` &&
git cat-file $t $object || return 1
done <obj-list
} >current &&
diff expect current'
test_expect_success \
'use packed deltified (REF_DELTA) objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
rm -f .git2/objects/pack/test-* &&
cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
git diff-tree --root -p $commit &&
while read object
do
t=`git cat-file -t $object` &&
git cat-file $t $object || return 1
done <obj-list
} >current &&
diff expect current'
test_expect_success \
'use packed deltified (OFS_DELTA) objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
rm -f .git2/objects/pack/test-* &&
cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
git diff-tree --root -p $commit &&
while read object
do
t=`git cat-file -t $object` &&
git cat-file $t $object || return 1
done <obj-list
} >current &&
diff expect current'
unset GIT_OBJECT_DIRECTORY
test_expect_success 'survive missing objects/pack directory' '
(
rm -fr missing-pack &&
mkdir missing-pack &&
cd missing-pack &&
git init &&
GOP=.git/objects/pack
rm -fr $GOP &&
git index-pack --stdin --keep=test <../test-3-${packname_3}.pack &&
test -f $GOP/pack-${packname_3}.pack &&
test_cmp $GOP/pack-${packname_3}.pack ../test-3-${packname_3}.pack &&
test -f $GOP/pack-${packname_3}.idx &&
test_cmp $GOP/pack-${packname_3}.idx ../test-3-${packname_3}.idx &&
test -f $GOP/pack-${packname_3}.keep
)
'
test_expect_success \
'verify pack' \
'git verify-pack test-1-${packname_1}.idx \
test-2-${packname_2}.idx \
test-3-${packname_3}.idx'
test_expect_success \
'verify pack -v' \
'git verify-pack -v test-1-${packname_1}.idx \
test-2-${packname_2}.idx \
test-3-${packname_3}.idx'
test_expect_success \
'verify-pack catches mismatched .idx and .pack files' \
'cat test-1-${packname_1}.idx >test-3.idx &&
cat test-2-${packname_2}.pack >test-3.pack &&
if git verify-pack test-3.idx
then false
else :;
fi'
test_expect_success \
'verify-pack catches a corrupted pack signature' \
'cat test-1-${packname_1}.pack >test-3.pack &&
echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
if git verify-pack test-3.idx
then false
else :;
fi'
test_expect_success \
'verify-pack catches a corrupted pack version' \
'cat test-1-${packname_1}.pack >test-3.pack &&
echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
if git verify-pack test-3.idx
then false
else :;
fi'
test_expect_success \
'verify-pack catches a corrupted type/size of the 1st packed object data' \
'cat test-1-${packname_1}.pack >test-3.pack &&
echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
if git verify-pack test-3.idx
then false
else :;
fi'
test_expect_success \
'verify-pack catches a corrupted sum of the index file itself' \
'l=`wc -c <test-3.idx` &&
l=`expr $l - 20` &&
cat test-1-${packname_1}.pack >test-3.pack &&
printf "%20s" "" | dd of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
if git verify-pack test-3.pack
then false
else :;
fi'
test_expect_success \
'build pack index for an existing pack' \
'cat test-1-${packname_1}.pack >test-3.pack &&
git index-pack -o tmp.idx test-3.pack &&
cmp tmp.idx test-1-${packname_1}.idx &&
git index-pack test-3.pack &&
cmp test-3.idx test-1-${packname_1}.idx &&
cat test-2-${packname_2}.pack >test-3.pack &&
git index-pack -o tmp.idx test-2-${packname_2}.pack &&
cmp tmp.idx test-2-${packname_2}.idx &&
git index-pack test-3.pack &&
cmp test-3.idx test-2-${packname_2}.idx &&
cat test-3-${packname_3}.pack >test-3.pack &&
git index-pack -o tmp.idx test-3-${packname_3}.pack &&
cmp tmp.idx test-3-${packname_3}.idx &&
git index-pack test-3.pack &&
cmp test-3.idx test-3-${packname_3}.idx &&
:'
test_expect_success \
'fake a SHA1 hash collision' \
'test -f .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
cp -f .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
.git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
test_expect_success \
'make sure index-pack detects the SHA1 collision' \
'test_must_fail git index-pack -o bad.idx test-3.pack 2>msg &&
grep "SHA1 COLLISION FOUND" msg'
test_expect_success \
'honor pack.packSizeLimit' \
'git config pack.packSizeLimit 200 &&
packname_4=$(git pack-objects test-4 <obj-list) &&
test 3 = $(ls test-4-*.pack | wc -l)'
test_expect_success 'unpacking with --strict' '
git config --unset pack.packsizelimit &&
for j in a b c d e f g
do
for i in 0 1 2 3 4 5 6 7 8 9
do
o=$(echo $j$i | git hash-object -w --stdin) &&
echo "100644 $o 0 $j$i"
done
done >LIST &&
rm -f .git/index &&
git update-index --index-info <LIST &&
LIST=$(git write-tree) &&
rm -f .git/index &&
head -n 10 LIST | git update-index --index-info &&
LI=$(git write-tree) &&
rm -f .git/index &&
tail -n 10 LIST | git update-index --index-info &&
ST=$(git write-tree) &&
PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
git pack-objects test-5 ) &&
PACK6=$( (
echo "$LIST"
echo "$LI"
echo "$ST"
) | git pack-objects test-6 ) &&
test_create_repo test-5 &&
(
cd test-5 &&
git unpack-objects --strict <../test-5-$PACK5.pack &&
git ls-tree -r $LIST &&
git ls-tree -r $LI &&
git ls-tree -r $ST
) &&
test_create_repo test-6 &&
(
# tree-only into empty repo -- many unreachables
cd test-6 &&
test_must_fail git unpack-objects --strict <../test-6-$PACK6.pack
) &&
(
# already populated -- no unreachables
cd test-5 &&
git unpack-objects --strict <../test-6-$PACK6.pack
)
'
test_expect_success 'index-pack with --strict' '
for j in a b c d e f g
do
for i in 0 1 2 3 4 5 6 7 8 9
do
o=$(echo $j$i | git hash-object -w --stdin) &&
echo "100644 $o 0 $j$i"
done
done >LIST &&
rm -f .git/index &&
git update-index --index-info <LIST &&
LIST=$(git write-tree) &&
rm -f .git/index &&
head -n 10 LIST | git update-index --index-info &&
LI=$(git write-tree) &&
rm -f .git/index &&
tail -n 10 LIST | git update-index --index-info &&
ST=$(git write-tree) &&
PACK5=$( git rev-list --objects "$LIST" "$LI" "$ST" | \
git pack-objects test-5 ) &&
PACK6=$( (
echo "$LIST"
echo "$LI"
echo "$ST"
) | git pack-objects test-6 ) &&
test_create_repo test-7 &&
(
cd test-7 &&
git index-pack --strict --stdin <../test-5-$PACK5.pack &&
git ls-tree -r $LIST &&
git ls-tree -r $LI &&
git ls-tree -r $ST
) &&
test_create_repo test-8 &&
(
# tree-only into empty repo -- many unreachables
cd test-8 &&
test_must_fail git index-pack --strict --stdin <../test-6-$PACK6.pack
) &&
(
# already populated -- no unreachables
cd test-7 &&
git index-pack --strict --stdin <../test-6-$PACK6.pack
)
'
test_expect_success 'tolerate absurdly small packsizelimit' '
git config pack.packSizeLimit 2 &&
packname_9=$(git pack-objects test-9 <obj-list) &&
test $(wc -l <obj-list) = $(ls test-9-*.pack | wc -l)
'
test_done