Revision 89a70b80ebabd237bb407f9321f24677f4f1d16d authored by Johannes Schindelin on 03 January 2018, 16:54:54 UTC, committed by Junio C Hamano on 03 January 2018, 23:55:50 UTC
When cleaning up files in the $HOME directory, it really makes sense to
quote the path, especially in Git's test suite, where the HOME directory
is *guaranteed* to contain spaces in its name.

It would appear that those two tests pass even without cleaning up the
files, but really more by pure chance than by design (the cleanup seems
not actually to be necessary).

However, if anybody would have a left-over `trash/` directory in Git's
`t/` directory, these tests would fail, because they would all of a
sudden try to delete that directory, but without the `-r` (recursive)
flag. That is how this issue was found.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 567c53d
Raw File
t5300-pack-object.sh
#!/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 &&
     test-genrandom "seed a" 2097152 > a_big &&
     test-genrandom "seed b" 2097152 > b_big &&
     git update-index --add a a_big b b_big 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)'

test_expect_success \
    'pack-objects with bogus arguments' \
    'test_must_fail git pack-objects --window=0 test-1 blah blah <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 &&
    cmp 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 &&
    cmp 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 &&
    cmp 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 &&
		cmp $GOP/pack-${packname_3}.pack ../test-3-${packname_3}.pack &&
		test -f $GOP/pack-${packname_3}.idx &&
		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 &&

     cat test-1-${packname_1}.pack >test-4.pack &&
     rm -f test-4.keep &&
     git index-pack --keep=why test-4.pack &&
     cmp test-1-${packname_1}.idx test-4.idx &&
     test -f test-4.keep &&

     :'

test_expect_success 'unpacking 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 "$ST"
		 ) | git pack-objects test-6 ) &&
	test_create_repo test-5 &&
	(
		cd test-5 &&
		git unpack-objects --strict <../test-5-$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 'honor pack.packSizeLimit' '
	git config pack.packSizeLimit 3m &&
	packname_10=$(git pack-objects test-10 <obj-list) &&
	test 2 = $(ls test-10-*.pack | wc -l)
'

test_expect_success 'verify resulting packs' '
	git verify-pack test-10-*.pack
'

test_expect_success 'tolerate packsizelimit smaller than biggest object' '
	git config pack.packSizeLimit 1 &&
	packname_11=$(git pack-objects test-11 <obj-list) &&
	test 5 = $(ls test-11-*.pack | wc -l)
'

test_expect_success 'verify resulting packs' '
	git verify-pack test-11-*.pack
'

test_expect_success 'set up pack for non-repo tests' '
	# make sure we have a pack with no matching index file
	cp test-1-*.pack foo.pack
'

test_expect_success 'index-pack --stdin complains of non-repo' '
	nongit test_must_fail git index-pack --stdin <foo.pack &&
	test_path_is_missing non-repo/.git
'

test_expect_success 'index-pack <pack> works in non-repo' '
	nongit git index-pack ../foo.pack &&
	test_path_is_file foo.idx
'

#
# WARNING!
#
# The following test is destructive.  Please keep the next
# two tests at the end of this file.
#

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 &&
     test_i18ngrep "SHA1 COLLISION FOUND" msg'

test_expect_success \
    'make sure index-pack detects the SHA1 collision (large blobs)' \
    'test_must_fail git -c core.bigfilethreshold=1 index-pack -o bad.idx test-3.pack 2>msg &&
     test_i18ngrep "SHA1 COLLISION FOUND" msg'

test_done
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