git-commit-vandalism/t/t5300-pack-object.sh
Junio C Hamano f9253394a2 [PATCH] Add git-verify-pack command.
Given a list of <pack>.idx files, this command validates the
index file and the corresponding .pack file for consistency.

This patch also uses the same validation mechanism in fsck-cache
when the --full flag is used.

During normal operation, sha1_file.c verifies that a given .idx
file matches the .pack file by comparing the SHA1 checksum
stored in .idx file and .pack file as a minimum sanity check.
We may further want to check the pack signature and version when
we map the pack, but that would be a separate patch.

Earlier, errors to map a pack file was not flagged fatal but led
to a random fatal error later.  This version explicitly die()s
when such an error is detected.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-29 09:11:39 -07:00

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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 "\\0" $i >$i &&
git-update-cache --add $i || exit
done &&
cat c >d && echo foo >>d && git-update-cache --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 || exit 1
done <obj-list
} >expect'
test_expect_success \
'pack without delta' \
'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-db &&
git-unpack-objects test-1'
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.
exit 1
}
done'
cd $TRASH
test_expect_success \
'pack with delta' \
'pwd &&
git-pack-objects test-2 <obj-list'
rm -fr .git2
mkdir .git2
test_expect_success \
'unpack with delta' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git-init-db &&
git-unpack-objects test-2'
unset GIT_OBJECT_DIRECTORY
cd $TRASH/.git2
test_expect_success \
'check unpack with delta' \
'(cd ../.git && find objects -type f -print) |
while read path
do
cmp $path ../.git/$path || {
echo $path differs.
exit 1
}
done'
cd $TRASH
rm -fr .git2
mkdir .git2
test_expect_success \
'use packed objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git-init-db &&
cp test-1.pack test-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 || exit 1
done <obj-list
} >current &&
diff expect current'
test_expect_success \
'use packed deltified objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
rm -f .git2/objects/pack/test-?.idx &&
cp test-2.pack test-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 || exit 1
done <obj-list
} >current &&
diff expect current'
unset GIT_OBJECT_DIRECTORY
test_expect_success \
'verify pack' \
'git-verify-pack test-1.idx test-2.idx'
test_expect_success \
'corrupt a pack and see if verify catches' \
'cp test-1.idx test-3.idx &&
cp test-2.pack test-3.pack &&
if git-verify-pack test-3.idx
then false
else :;
fi &&
cp test-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 &&
cp test-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 &&
cp test-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_done