git-commit-vandalism/t/t5300-pack-object.sh
H.Merijn Brand 3175b0cfc1 the use of 'tr' in the test suite isn't really portable
Some versions of 'tr' only accept octal codes if entered with three digits,
and therefor misinterpret the '\0' in the test suite.

Some versions of 'tr' reject the (needless) use of character classes.

Signed-off-by: H.Merijn Brand <h.m.brand@xs4all.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-17 20:49:18 -08:00

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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*
for i in a b c
do
dd if=/dev/zero bs=4k count=1 | tr "\\000" $i >$i &&
git update-index --add $i || return 1
done &&
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 $object || return 1
done <obj-list
} >current &&
diff expect current'
unset GIT_OBJECT_DIRECTORY
test_expect_success \
'verify pack' \
'git verify-pack test-1-${packname_1}.idx \
test-2-${packname_2}.idx \
test-3-${packname_3}.idx'
test_expect_success \
'verify-pack 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-${packname_1}.pack >test-3.pack &&
dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
if git verify-pack test-3.idx
then false
else :;
fi'
test_expect_success \
'verify-pack catches a corrupted pack version' \
'cat test-1-${packname_1}.pack >test-3.pack &&
dd if=/dev/zero 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 &&
dd if=/dev/zero 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 &&
dd if=/dev/zero 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_failure \
'make sure index-pack detects the SHA1 collision' \
'git-index-pack -o bad.idx test-3.pack'
test_done