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https://github.com/git/git
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2b84b5a874
"git pack-objects" has the option --max-pack-size to limit the file size of the packs to a certain amount of bytes. On platforms where the pack file size is limited by filesystem constraints, it is easy to forget this option, and this option does not exist for "git gc" to begin with. So introduce a config variable to set the default maximum, but make this overrideable by the command line. Suggested by Tor Arvid Lund. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
278 lines
7.3 KiB
Bash
Executable file
278 lines
7.3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano
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#
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test_description='git-pack-object
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'
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. ./test-lib.sh
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TRASH=`pwd`
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test_expect_success \
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'setup' \
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'rm -f .git/index*
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for i in a b c
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do
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dd if=/dev/zero bs=4k count=1 | tr "\\000" $i >$i &&
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git update-index --add $i || return 1
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done &&
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cat c >d && echo foo >>d && git update-index --add d &&
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tree=`git write-tree` &&
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commit=`git commit-tree $tree </dev/null` && {
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echo $tree &&
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echo $commit &&
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git ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
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} >obj-list && {
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git diff-tree --root -p $commit &&
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while read object
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do
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t=`git cat-file -t $object` &&
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git cat-file $t $object || return 1
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done <obj-list
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} >expect'
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test_expect_success \
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'pack without delta' \
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'packname_1=$(git pack-objects --window=0 test-1 <obj-list)'
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rm -fr .git2
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mkdir .git2
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test_expect_success \
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'unpack without delta' \
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"GIT_OBJECT_DIRECTORY=.git2/objects &&
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export GIT_OBJECT_DIRECTORY &&
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git init &&
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git unpack-objects -n <test-1-${packname_1}.pack &&
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git unpack-objects <test-1-${packname_1}.pack"
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unset GIT_OBJECT_DIRECTORY
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cd "$TRASH/.git2"
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test_expect_success \
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'check unpack without delta' \
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'(cd ../.git && find objects -type f -print) |
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while read path
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do
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cmp $path ../.git/$path || {
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echo $path differs.
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return 1
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}
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done'
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cd "$TRASH"
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test_expect_success \
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'pack with REF_DELTA' \
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'pwd &&
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packname_2=$(git pack-objects test-2 <obj-list)'
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rm -fr .git2
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mkdir .git2
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test_expect_success \
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'unpack with REF_DELTA' \
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'GIT_OBJECT_DIRECTORY=.git2/objects &&
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export GIT_OBJECT_DIRECTORY &&
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git init &&
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git unpack-objects -n <test-2-${packname_2}.pack &&
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git unpack-objects <test-2-${packname_2}.pack'
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unset GIT_OBJECT_DIRECTORY
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cd "$TRASH/.git2"
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test_expect_success \
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'check unpack with REF_DELTA' \
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'(cd ../.git && find objects -type f -print) |
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while read path
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do
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cmp $path ../.git/$path || {
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echo $path differs.
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return 1
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}
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done'
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cd "$TRASH"
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test_expect_success \
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'pack with OFS_DELTA' \
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'pwd &&
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packname_3=$(git pack-objects --delta-base-offset test-3 <obj-list)'
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rm -fr .git2
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mkdir .git2
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test_expect_success \
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'unpack with OFS_DELTA' \
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'GIT_OBJECT_DIRECTORY=.git2/objects &&
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export GIT_OBJECT_DIRECTORY &&
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git init &&
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git unpack-objects -n <test-3-${packname_3}.pack &&
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git unpack-objects <test-3-${packname_3}.pack'
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unset GIT_OBJECT_DIRECTORY
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cd "$TRASH/.git2"
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test_expect_success \
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'check unpack with OFS_DELTA' \
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'(cd ../.git && find objects -type f -print) |
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while read path
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do
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cmp $path ../.git/$path || {
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echo $path differs.
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return 1
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}
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done'
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cd "$TRASH"
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test_expect_success 'compare delta flavors' '
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perl -e '\''
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defined($_ = -s $_) or die for @ARGV;
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exit 1 if $ARGV[0] <= $ARGV[1];
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'\'' test-2-$packname_2.pack test-3-$packname_3.pack
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'
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rm -fr .git2
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mkdir .git2
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test_expect_success \
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'use packed objects' \
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'GIT_OBJECT_DIRECTORY=.git2/objects &&
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export GIT_OBJECT_DIRECTORY &&
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git init &&
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cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
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git diff-tree --root -p $commit &&
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while read object
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do
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t=`git cat-file -t $object` &&
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git cat-file $t $object || return 1
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done <obj-list
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} >current &&
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diff expect current'
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test_expect_success \
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'use packed deltified (REF_DELTA) objects' \
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'GIT_OBJECT_DIRECTORY=.git2/objects &&
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export GIT_OBJECT_DIRECTORY &&
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rm -f .git2/objects/pack/test-* &&
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cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
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git diff-tree --root -p $commit &&
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while read object
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do
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t=`git cat-file -t $object` &&
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git cat-file $t $object || return 1
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done <obj-list
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} >current &&
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diff expect current'
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test_expect_success \
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'use packed deltified (OFS_DELTA) objects' \
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'GIT_OBJECT_DIRECTORY=.git2/objects &&
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export GIT_OBJECT_DIRECTORY &&
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rm -f .git2/objects/pack/test-* &&
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cp test-3-${packname_3}.pack test-3-${packname_3}.idx .git2/objects/pack && {
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git diff-tree --root -p $commit &&
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while read object
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do
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t=`git cat-file -t $object` &&
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git cat-file $t $object || return 1
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done <obj-list
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} >current &&
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diff expect current'
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unset GIT_OBJECT_DIRECTORY
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test_expect_success \
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'verify pack' \
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'git verify-pack test-1-${packname_1}.idx \
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test-2-${packname_2}.idx \
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test-3-${packname_3}.idx'
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test_expect_success \
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'verify-pack catches mismatched .idx and .pack files' \
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'cat test-1-${packname_1}.idx >test-3.idx &&
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cat test-2-${packname_2}.pack >test-3.pack &&
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if git verify-pack test-3.idx
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then false
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else :;
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fi'
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test_expect_success \
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'verify-pack catches a corrupted pack signature' \
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'cat test-1-${packname_1}.pack >test-3.pack &&
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dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
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if git verify-pack test-3.idx
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then false
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else :;
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fi'
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test_expect_success \
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'verify-pack catches a corrupted pack version' \
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'cat test-1-${packname_1}.pack >test-3.pack &&
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dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
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if git verify-pack test-3.idx
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then false
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else :;
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fi'
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test_expect_success \
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'verify-pack catches a corrupted type/size of the 1st packed object data' \
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'cat test-1-${packname_1}.pack >test-3.pack &&
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dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
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if git verify-pack test-3.idx
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then false
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else :;
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fi'
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test_expect_success \
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'verify-pack catches a corrupted sum of the index file itself' \
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'l=`wc -c <test-3.idx` &&
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l=`expr $l - 20` &&
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cat test-1-${packname_1}.pack >test-3.pack &&
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dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l &&
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if git verify-pack test-3.pack
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then false
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else :;
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fi'
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test_expect_success \
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'build pack index for an existing pack' \
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'cat test-1-${packname_1}.pack >test-3.pack &&
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git-index-pack -o tmp.idx test-3.pack &&
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cmp tmp.idx test-1-${packname_1}.idx &&
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git-index-pack test-3.pack &&
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cmp test-3.idx test-1-${packname_1}.idx &&
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cat test-2-${packname_2}.pack >test-3.pack &&
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git-index-pack -o tmp.idx test-2-${packname_2}.pack &&
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cmp tmp.idx test-2-${packname_2}.idx &&
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git-index-pack test-3.pack &&
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cmp test-3.idx test-2-${packname_2}.idx &&
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cat test-3-${packname_3}.pack >test-3.pack &&
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git-index-pack -o tmp.idx test-3-${packname_3}.pack &&
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cmp tmp.idx test-3-${packname_3}.idx &&
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git-index-pack test-3.pack &&
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cmp test-3.idx test-3-${packname_3}.idx &&
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:'
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test_expect_success \
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'fake a SHA1 hash collision' \
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'test -f .git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67 &&
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cp -f .git/objects/9d/235ed07cd19811a6ceb342de82f190e49c9f68 \
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.git/objects/c8/2de19312b6c3695c0c18f70709a6c535682a67'
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test_expect_success \
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'make sure index-pack detects the SHA1 collision' \
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'! git-index-pack -o bad.idx test-3.pack'
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test_expect_success \
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'honor pack.packSizeLimit' \
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'git config pack.packSizeLimit 200 &&
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packname_4=$(git pack-objects test-4 <obj-list) &&
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test 3 = $(ls test-4-*.pack | wc -l)'
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test_done
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