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git/t/t5300-pack-object.sh
Patrick Steinhardt 23e21a58d5 t: introduce PERL_TEST_HELPERS prerequisite 
In the early days of Git, Perl was used quite prominently throughout the
project. This has changed significantly as almost all of the executables
we ship nowadays have eventually been rewritten in C. Only a handful of
subsystems remain that require Perl:

  - gitweb, a read-only web interface.

  - A couple of scripts that allow importing repositories from GNU Arch,
    CVS and Subversion.

  - git-send-email(1), which can be used to send mails.

  - git-request-pull(1), which is used to request somebody to pull from
    a URL by sending an email.

  - git-filter-branch(1), which uses Perl with the `--state-branch`
    option. This command is typically recommended against nowadays in
    favor of git-filter-repo(1).

  - Our Perl bindings for Git.

  - The netrc Git credential helper.

None of these subsystems can really be considered to be part of the
"core" of Git, and an installation without them is fully functional.
It is more likely than not that an end user wouldn't even notice that
any features are missing if those tools weren't installed. But while
Perl nowadays very much is an optional dependency of Git, there is a
significant limitation when Perl isn't available: developers cannot run
our test suite.

Preceding commits have started to lift this restriction by removing the
strict dependency on Perl in many central parts of the test library. But
there are still many tests that rely on small Perl helpers to do various
different things.

Introduce a new PERL_TEST_HELPERS prerequisite that guards all tests
that require Perl. This prerequisite is explicitly different than the
preexisting PERL prerequisite:

  - PERL records whether or not features depending on the Perl
    interpreter are built.

  - PERL_TEST_HELPERS records whether or not a Perl interpreter is
    available for our tests.

By having these two separate prerequisites we can thus distinguish
between tests that inherently depend on Perl because the underlying
feature does, and those tests that depend on Perl because the test
itself is using Perl.

Adapt all tests to set the PERL_TEST_HELPERS prerequisite as needed.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-04-07 14:47:37 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
test_description='git pack-object'
. ./test-lib.sh
if ! test_have_prereq PERL_TEST_HELPERS
then
skip_all='skipping pack-object tests; Perl not available'
test_done
fi
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-tool genrandom "seed a" 2097152 >a_big &&
test-tool 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 'setup pack-object <stdin' '
git init pack-object-stdin &&
test_commit -C pack-object-stdin one &&
test_commit -C pack-object-stdin two
'
test_expect_success 'pack-object <stdin parsing: basic [|--revs]' '
cat >in <<-EOF &&
$(git -C pack-object-stdin rev-parse one)
EOF
git -C pack-object-stdin pack-objects basic-stdin <in &&
idx=$(echo pack-object-stdin/basic-stdin-*.idx) &&
git show-index <"$idx" >actual &&
test_line_count = 1 actual &&
git -C pack-object-stdin pack-objects --revs basic-stdin-revs <in &&
idx=$(echo pack-object-stdin/basic-stdin-revs-*.idx) &&
git show-index <"$idx" >actual &&
test_line_count = 3 actual
'
test_expect_success 'pack-object <stdin parsing: [|--revs] bad line' '
cat >in <<-EOF &&
$(git -C pack-object-stdin rev-parse one)
garbage
$(git -C pack-object-stdin rev-parse two)
EOF
sed "s/^> //g" >err.expect <<-EOF &&
fatal: expected object ID, got garbage:
> garbage
EOF
test_must_fail git -C pack-object-stdin pack-objects bad-line-stdin <in 2>err.actual &&
test_cmp err.expect err.actual &&
cat >err.expect <<-EOF &&
fatal: bad revision '"'"'garbage'"'"'
EOF
test_must_fail git -C pack-object-stdin pack-objects --revs bad-line-stdin-revs <in 2>err.actual &&
test_cmp err.expect err.actual
'
test_expect_success 'pack-object <stdin parsing: [|--revs] empty line' '
cat >in <<-EOF &&
$(git -C pack-object-stdin rev-parse one)
$(git -C pack-object-stdin rev-parse two)
EOF
sed -e "s/^> //g" -e "s/Z$//g" >err.expect <<-EOF &&
fatal: expected object ID, got garbage:
> Z
EOF
test_must_fail git -C pack-object-stdin pack-objects empty-line-stdin <in 2>err.actual &&
test_cmp err.expect err.actual &&
git -C pack-object-stdin pack-objects --revs empty-line-stdin-revs <in &&
idx=$(echo pack-object-stdin/empty-line-stdin-revs-*.idx) &&
git show-index <"$idx" >actual &&
test_line_count = 3 actual
'
test_expect_success 'pack-object <stdin parsing: [|--revs] with --stdin' '
cat >in <<-EOF &&
$(git -C pack-object-stdin rev-parse one)
$(git -C pack-object-stdin rev-parse two)
EOF
# There is the "--stdin-packs is incompatible with --revs"
# test below, but we should make sure that the revision.c
# --stdin is not picked up
cat >err.expect <<-EOF &&
fatal: disallowed abbreviated or ambiguous option '"'"'stdin'"'"'
EOF
test_must_fail git -C pack-object-stdin pack-objects stdin-with-stdin-option --stdin <in 2>err.actual &&
test_cmp err.expect err.actual &&
test_must_fail git -C pack-object-stdin pack-objects --stdin --revs stdin-with-stdin-option-revs 2>err.actual <in &&
test_cmp err.expect err.actual
'
test_expect_success 'pack-object <stdin parsing: --stdin-packs handles garbage' '
cat >in <<-EOF &&
$(git -C pack-object-stdin rev-parse one)
$(git -C pack-object-stdin rev-parse two)
EOF
# That we get "two" and not "one" has to do with OID
# ordering. It happens to be the same here under SHA-1 and
# SHA-256. See commentary in pack-objects.c
cat >err.expect <<-EOF &&
fatal: could not find pack '"'"'$(git -C pack-object-stdin rev-parse two)'"'"'
EOF
test_must_fail git \
-C pack-object-stdin \
pack-objects stdin-with-stdin-option --stdin-packs \
<in 2>err.actual &&
test_cmp err.expect err.actual
'
# usage: check_deltas <stderr_from_pack_objects> <cmp_op> <nr_deltas>
# e.g.: check_deltas stderr -gt 0
check_deltas() {
deltas=$(perl -lne '/delta (\d+)/ and print $1' "$1") &&
shift &&
if ! test "$deltas" "$@"
then
echo >&2 "unexpected number of deltas (compared $delta $*)"
return 1
fi
}
test_expect_success 'pack without delta' '
packname_1=$(git pack-objects --progress --window=0 test-1 \
<obj-list 2>stderr) &&
check_deltas stderr = 0
'
test_expect_success 'negative window clamps to 0' '
git pack-objects --progress --window=-1 neg-window <obj-list 2>stderr &&
check_deltas stderr = 0
'
test_expect_success 'pack-objects with bogus arguments' '
test_must_fail git pack-objects --window=0 test-1 blah blah <obj-list
'
check_unpack () {
local packname="$1" &&
local object_list="$2" &&
local git_config="$3" &&
test_when_finished "rm -rf git2" &&
git $git_config init --bare git2 &&
(
git $git_config -C git2 unpack-objects -n <"$packname".pack &&
git $git_config -C git2 unpack-objects <"$packname".pack &&
git $git_config -C git2 cat-file --batch-check="%(objectname)"
) <"$object_list" >current &&
cmp "$object_list" current
}
test_expect_success 'unpack without delta' '
check_unpack test-1-${packname_1} obj-list
'
BATCH_CONFIGURATION='-c core.fsync=loose-object -c core.fsyncmethod=batch'
test_expect_success 'unpack without delta (core.fsyncmethod=batch)' '
check_unpack test-1-${packname_1} obj-list "$BATCH_CONFIGURATION"
'
test_expect_success 'pack with REF_DELTA' '
packname_2=$(git pack-objects --progress test-2 <obj-list 2>stderr) &&
check_deltas stderr -gt 0
'
test_expect_success 'unpack with REF_DELTA' '
check_unpack test-2-${packname_2} obj-list
'
test_expect_success 'unpack with REF_DELTA (core.fsyncmethod=batch)' '
check_unpack test-2-${packname_2} obj-list "$BATCH_CONFIGURATION"
'
test_expect_success 'pack with OFS_DELTA' '
packname_3=$(git pack-objects --progress --delta-base-offset test-3 \
<obj-list 2>stderr) &&
check_deltas stderr -gt 0
'
test_expect_success 'unpack with OFS_DELTA' '
check_unpack test-3-${packname_3} obj-list
'
test_expect_success 'unpack with OFS_DELTA (core.fsyncmethod=batch)' '
check_unpack test-3-${packname_3} obj-list "$BATCH_CONFIGURATION"
'
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
'
check_use_objects () {
test_when_finished "rm -rf git2" &&
git init --bare git2 &&
cp "$1".pack "$1".idx git2/objects/pack &&
(
cd git2 &&
git diff-tree --root -p $commit &&
while read object
do
t=$(git cat-file -t $object) &&
git cat-file $t $object || exit 1
done
) <obj-list >current &&
cmp expect current
}
test_expect_success 'use packed objects' '
check_use_objects test-1-${packname_1}
'
test_expect_success 'use packed deltified (REF_DELTA) objects' '
check_use_objects test-2-${packname_2}
'
test_expect_success 'use packed deltified (OFS_DELTA) objects' '
check_use_objects test-3-${packname_3}
'
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" || return 1
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=$(git write-tree) &&
git rev-list --objects "$LIST" "$LI" "$ST" >actual &&
PACK5=$( git pack-objects test-5 <actual ) &&
PACK6=$( test_write_lines "$LIST" "$LI" "$ST" | git pack-objects test-6 ) &&
test_create_repo test-5 &&
(
cd test-5 &&
git unpack-objects --strict <../test-5-$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" || return 1
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=$(git write-tree) &&
git rev-list --objects "$LIST" "$LI" "$ST" >actual &&
PACK5=$( git pack-objects test-5 <actual ) &&
PACK6=$( test_write_lines "$LIST" "$LI" "$ST" | git pack-objects test-6 ) &&
test_create_repo test-7 &&
(
cd test-7 &&
git index-pack --strict --stdin <../test-5-$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 'setup for --strict and --fsck-objects downgrading fsck msgs' '
git init strict &&
(
cd strict &&
test_commit first hello &&
cat >commit <<-EOF &&
tree $(git rev-parse HEAD^{tree})
parent $(git rev-parse HEAD)
author A U Thor
committer A U Thor
commit: this is a commit with bad emails
EOF
git hash-object --literally -t commit -w --stdin <commit >commit_list &&
git pack-objects test <commit_list >pack-name
)
'
test_with_bad_commit () {
must_fail_arg="$1" &&
must_pass_arg="$2" &&
(
cd strict &&
test_must_fail git index-pack "$must_fail_arg" "test-$(cat pack-name).pack" &&
git index-pack "$must_pass_arg" "test-$(cat pack-name).pack"
)
}
test_expect_success 'index-pack with --strict downgrading fsck msgs' '
test_with_bad_commit --strict --strict="missingEmail=ignore"
'
test_expect_success 'index-pack with --fsck-objects downgrading fsck msgs' '
test_with_bad_commit --fsck-objects --fsck-objects="missingEmail=ignore"
'
test_expect_success 'cleanup for --strict and --fsck-objects downgrading fsck msgs' '
rm -rf strict
'
test_expect_success 'honor pack.packSizeLimit' '
git config pack.packSizeLimit 3m &&
packname_10=$(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 = $(ls test-11-*.pack | wc -l)
'
test_expect_success 'verify resulting packs' '
git verify-pack test-11-*.pack
'
test_expect_success 'set up pack for non-repo tests' '
# make sure we have a pack with no matching index file
cp test-1-*.pack foo.pack
'
test_expect_success 'index-pack --stdin complains of non-repo' '
nongit test_must_fail git index-pack --object-format=$(test_oid algo) --stdin <foo.pack &&
test_path_is_missing non-repo/.git
'
test_expect_success 'index-pack <pack> works in non-repo' '
nongit git index-pack --object-format=$(test_oid algo) ../foo.pack &&
test_path_is_file foo.idx
'
test_expect_success 'index-pack --strict <pack> works in non-repo' '
rm -f foo.idx &&
nongit git index-pack --strict --object-format=$(test_oid algo) ../foo.pack &&
test_path_is_file foo.idx
'
test_expect_success SHA1 'show-index works OK outside a repository' '
nongit git show-index <foo.idx
'
for hash in sha1 sha256
do
test_expect_success 'show-index works OK outside a repository with hash algo passed in via --object-format' '
test_when_finished "rm -rf explicit-hash-$hash" &&
git init --object-format=$hash explicit-hash-$hash &&
test_commit -C explicit-hash-$hash one &&
git -C explicit-hash-$hash rev-parse one >in &&
git -C explicit-hash-$hash pack-objects explicit-hash-$hash <in &&
idx=$(echo explicit-hash-$hash/explicit-hash-$hash*.idx) &&
nongit git show-index --object-format=$hash <"$idx" >actual &&
test_line_count = 1 actual
'
done
test_expect_success !PTHREADS,!FAIL_PREREQS \
'index-pack --threads=N or pack.threads=N warns when no pthreads' '
test_must_fail git index-pack --threads=2 2>err &&
grep ^warning: err >warnings &&
test_line_count = 1 warnings &&
grep -F "no threads support, ignoring --threads=2" err &&
test_must_fail git -c pack.threads=2 index-pack 2>err &&
grep ^warning: err >warnings &&
test_line_count = 1 warnings &&
grep -F "no threads support, ignoring pack.threads" err &&
test_must_fail git -c pack.threads=2 index-pack --threads=4 2>err &&
grep ^warning: err >warnings &&
test_line_count = 2 warnings &&
grep -F "no threads support, ignoring --threads=4" err &&
grep -F "no threads support, ignoring pack.threads" err
'
test_expect_success !PTHREADS,!FAIL_PREREQS \
'pack-objects --threads=N or pack.threads=N warns when no pthreads' '
git pack-objects --threads=2 --stdout --all </dev/null >/dev/null 2>err &&
grep ^warning: err >warnings &&
test_line_count = 1 warnings &&
grep -F "no threads support, ignoring --threads" err &&
git -c pack.threads=2 pack-objects --stdout --all </dev/null >/dev/null 2>err &&
grep ^warning: err >warnings &&
test_line_count = 1 warnings &&
grep -F "no threads support, ignoring pack.threads" err &&
git -c pack.threads=2 pack-objects --threads=4 --stdout --all </dev/null >/dev/null 2>err &&
grep ^warning: err >warnings &&
test_line_count = 2 warnings &&
grep -F "no threads support, ignoring --threads" err &&
grep -F "no threads support, ignoring pack.threads" err
'
test_expect_success 'pack-objects in too-many-packs mode' '
GIT_TEST_FULL_IN_PACK_ARRAY=1 git repack -ad &&
git fsck
'
test_expect_success 'setup: fake a SHA1 hash collision' '
git init corrupt &&
(
cd corrupt &&
long_a=$(git hash-object -w ../a | sed -e "s!^..!&/!") &&
long_b=$(git hash-object -w ../b | sed -e "s!^..!&/!") &&
test -f .git/objects/$long_b &&
cp -f .git/objects/$long_a \
.git/objects/$long_b
)
'
test_expect_success 'make sure index-pack detects the SHA1 collision' '
(
cd corrupt &&
test_must_fail git index-pack -o ../bad.idx ../test-3.pack 2>msg &&
test_grep "SHA1 COLLISION FOUND" msg
)
'
test_expect_success 'make sure index-pack detects the SHA1 collision (large blobs)' '
(
cd corrupt &&
test_must_fail git -c core.bigfilethreshold=1 index-pack -o ../bad.idx ../test-3.pack 2>msg &&
test_grep "SHA1 COLLISION FOUND" msg
)
'
test_expect_success 'prefetch objects' '
rm -rf server client &&
git init server &&
test_config -C server uploadpack.allowanysha1inwant 1 &&
test_config -C server uploadpack.allowfilter 1 &&
test_config -C server protocol.version 2 &&
echo one >server/one &&
git -C server add one &&
git -C server commit -m one &&
git -C server branch one_branch &&
echo two_a >server/two_a &&
echo two_b >server/two_b &&
git -C server add two_a two_b &&
git -C server commit -m two &&
echo three >server/three &&
git -C server add three &&
git -C server commit -m three &&
git -C server branch three_branch &&
# Clone, fetch "two" with blobs excluded, and re-push it. This requires
# the client to have the blobs of "two" - verify that these are
# prefetched in one batch.
git clone --filter=blob:none --single-branch -b one_branch \
"file://$(pwd)/server" client &&
test_config -C client protocol.version 2 &&
TWO=$(git -C server rev-parse three_branch^) &&
git -C client fetch --filter=blob:none origin "$TWO" &&
GIT_TRACE_PACKET=$(pwd)/trace git -C client push origin "$TWO":refs/heads/two_branch &&
grep "fetch> done" trace >donelines &&
test_line_count = 1 donelines
'
for hash in sha1 sha256
do
test_expect_success "verify-pack with $hash packfile" '
test_when_finished "rm -rf repo" &&
git init --object-format=$hash repo &&
test_commit -C repo initial &&
git -C repo repack -ad &&
git -C repo verify-pack "$(pwd)"/repo/.git/objects/pack/*.idx &&
if test $hash = sha1
then
nongit git verify-pack "$(pwd)"/repo/.git/objects/pack/*.idx
else
# We have no way to identify the hash used by packfiles
# or indices, so we always fall back to SHA1.
nongit test_must_fail git verify-pack "$(pwd)"/repo/.git/objects/pack/*.idx &&
# But with an explicit object format we should succeed.
nongit git verify-pack --object-format=$hash "$(pwd)"/repo/.git/objects/pack/*.idx
fi
'
test_expect_success "index-pack outside of a $hash repository" '
test_when_finished "rm -rf repo" &&
git init --object-format=$hash repo &&
test_commit -C repo initial &&
git -C repo repack -ad &&
git -C repo index-pack --verify "$(pwd)"/repo/.git/objects/pack/*.pack &&
if test $hash = sha1
then
nongit git index-pack --verify "$(pwd)"/repo/.git/objects/pack/*.pack
else
# We have no way to identify the hash used by packfiles
# or indices, so we always fall back to SHA1.
nongit test_must_fail git index-pack --verify "$(pwd)"/repo/.git/objects/pack/*.pack 2>err &&
# But with an explicit object format we should succeed.
nongit git index-pack --object-format=$hash --verify "$(pwd)"/repo/.git/objects/pack/*.pack
fi
'
done
test_expect_success 'valid and invalid --name-hash-versions' '
sane_unset GIT_TEST_NAME_HASH_VERSION &&
# Valid values are hard to verify other than "do not fail".
# Performance tests will be more valuable to validate these versions.
# Negative values are converted to version 1.
for value in -1 1 2
do
git pack-objects base --all --name-hash-version=$value || return 1
done &&
# Invalid values have clear post-conditions.
for value in 0 3
do
test_must_fail git pack-objects base --all --name-hash-version=$value 2>err &&
test_grep "invalid --name-hash-version option" err || return 1
done
'
# The following test is not necessarily a permanent choice, but since we do not
# have a "name hash version" bit in the .bitmap file format, we cannot write the
# hash values into the .bitmap file without risking breakage later.
#
# TODO: Make these compatible in the future and replace this test with the
# expected behavior when both are specified.
test_expect_success '--name-hash-version=2 and --write-bitmap-index are incompatible' '
git pack-objects base --all --name-hash-version=2 --write-bitmap-index 2>err &&
test_grep "currently, --write-bitmap-index requires --name-hash-version=1" err &&
# --stdout option silently removes --write-bitmap-index
git pack-objects --stdout --all --name-hash-version=2 --write-bitmap-index >out 2>err &&
! test_grep "currently, --write-bitmap-index requires --name-hash-version=1" err
'
test_done
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