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# Copyright (C) 2005 Rene Scharfe
test_description='git archive and git get-tar-commit-id test
This test covers the topics of file contents, commit date handling and
commit id embedding:
The contents of the repository is compared to the extracted tar
archive. The repository contains simple text files, symlinks and a
binary file (/bin/sh). Only paths shorter than 99 characters are
git archive applies the commit date to every file in the archive it
creates. The test sets the commit date to a specific value and checks
if the tar archive contains that value.
When giving git archive a commit id (in contrast to a tree id) it
embeds this commit id into the tar archive as a comment. The test
checks the ability of git get-tar-commit-id to figure it out from the
tar file.
. ./
test_lazy_prereq TAR_NEEDS_PAX_FALLBACK '
mkdir pax &&
cd pax &&
"$TAR" xf "$TEST_DIRECTORY"/t5000/pax.tar &&
test -f PaxHeaders.1791/file
test_lazy_prereq GZIP 'gzip --version'
get_pax_header() {
while read len rest
if test "$len" = $(echo "$len $rest" | wc -c)
case "$rest" in
echo "${rest#$header}"
done <"$file"
check_tar() {
test_expect_success ' extract tar archive' '
(mkdir $dir && cd $dir && "$TAR" xf -) <$tarfile
test_expect_success TAR_NEEDS_PAX_FALLBACK ' interpret pax headers' '
cd $dir &&
for header in *.paxheader
data=${header%.paxheader}.data &&
if test -h $data || test -e $data
path=$(get_pax_header $header path) &&
if test -n "$path"
mv "$data" "$path"
test_expect_success ' validate filenames' '
(cd ${dir_with_prefix}a && find .) | sort >$listfile &&
test_cmp a.lst $listfile
test_expect_success ' validate file contents' '
diff -r a ${dir_with_prefix}a
test_expect_success 'setup' '
test_oid_cache <<-EOF
obj sha1:19f9c8273ec45a8938e6999cb59b3ff66739902a
obj sha256:3c666f798798601571f5cec0adb57ce4aba8546875e7693177e0535f34d2c49b
test_expect_success \
'populate workdir' \
'mkdir a &&
echo simple textfile >a/a &&
ten=0123456789 && hundred=$ten$ten$ten$ten$ten$ten$ten$ten$ten$ten &&
echo long filename >a/four$hundred &&
mkdir a/bin &&
test-tool genrandom "frotz" 500000 >a/bin/sh &&
printf "A\$Format:%s\$O" "$SUBSTFORMAT" >a/substfile1 &&
printf "A not substituted O" >a/substfile2 &&
if test_have_prereq SYMLINKS; then
ln -s a a/l1
printf %s a > a/l1
fi &&
(p=long_path_to_a_file && cd a &&
for depth in 1 2 3 4 5; do mkdir $p && cd $p; done &&
echo text >file_with_long_path) &&
(cd a && find .) | sort >a.lst'
test_expect_success \
'add ignored file' \
'echo ignore me >a/ignored &&
echo ignored export-ignore >.git/info/attributes'
test_expect_success 'add files to repository' '
git add a &&
GIT_COMMITTER_DATE="2005-05-27 22:00" git commit -m initial
test_expect_success 'setup export-subst' '
echo "substfile?" export-subst >>.git/info/attributes &&
git log --max-count=1 "--pretty=format:A${SUBSTFORMAT}O" HEAD \
test_expect_success \
'create bare clone' \
'git clone --bare . bare.git &&
cp .git/info/attributes bare.git/info/attributes'
test_expect_success \
'remove ignored file' \
'rm a/ignored'
test_expect_success \
'git archive' \
'git archive HEAD >b.tar'
check_tar b
test_expect_success 'git archive --prefix=prefix/' '
git archive --prefix=prefix/ HEAD >with_prefix.tar
check_tar with_prefix prefix/
test_expect_success 'git-archive --prefix=olde-' '
git archive --prefix=olde- HEAD >with_olde-prefix.tar
check_tar with_olde-prefix olde-
test_expect_success 'git archive on large files' '
test_config core.bigfilethreshold 1 &&
git archive HEAD >b3.tar &&
test_cmp_bin b.tar b3.tar
test_expect_success \
'git archive in a bare repo' \
'(cd bare.git && git archive HEAD) >b3.tar'
test_expect_success \
'git archive vs. the same in a bare repo' \
'test_cmp_bin b.tar b3.tar'
test_expect_success 'git archive with --output' \
'git archive --output=b4.tar HEAD &&
test_cmp_bin b.tar b4.tar'
test_expect_success 'git archive --remote' \
'git archive --remote=. HEAD >b5.tar &&
test_cmp_bin b.tar b5.tar'
test_expect_success 'git archive --remote with configured remote' '
git config . &&
cd a &&
git archive --remote=foo --output=../b5-nick.tar HEAD
) &&
test_cmp_bin b.tar b5-nick.tar
test_expect_success \
'validate file modification time' \
'mkdir extract &&
"$TAR" xf b.tar -C extract a/a &&
test-tool chmtime --get extract/a/a >b.mtime &&
echo "1117231200" >expected.mtime &&
test_cmp expected.mtime b.mtime'
test_expect_success \
'git get-tar-commit-id' \
'git get-tar-commit-id <b.tar >b.commitid &&
test_cmp .git/$(git symbolic-ref HEAD) b.commitid'
test_expect_success 'git archive with --output, override inferred format' '
git archive --format=tar HEAD &&
test_cmp_bin b.tar
test_expect_success GZIP 'git archive with --output and --remote creates .tgz' '
git archive --output=d5.tgz --remote=. HEAD &&
gzip -d -c <d5.tgz >d5.tar &&
test_cmp_bin b.tar d5.tar
test_expect_success 'git archive --list outside of a git repo' '
nongit git archive --list
test_expect_success 'git archive --remote outside of a git repo' '
git archive HEAD >expect.tar &&
nongit git archive --remote="$PWD" HEAD >actual.tar &&
test_cmp_bin expect.tar actual.tar
test_expect_success 'clients cannot access unreachable commits' '
test_commit unreachable &&
sha1=$(git rev-parse HEAD) &&
git reset --hard HEAD^ &&
git archive $sha1 >remote.tar &&
test_must_fail git archive --remote=. $sha1 >remote.tar
test_expect_success 'upload-archive can allow unreachable commits' '
test_commit unreachable1 &&
sha1=$(git rev-parse HEAD) &&
git reset --hard HEAD^ &&
git archive $sha1 >remote.tar &&
test_config uploadarchive.allowUnreachable true &&
git archive --remote=. $sha1 >remote.tar
test_expect_success 'setup tar filters' '
git config "tr ab ba" &&
git config "tr ab ba" &&
git config true &&
git config tar.invalid baz
test_expect_success 'archive --list mentions user filter' '
git archive --list >output &&
grep "^tar\.foo\$" output &&
grep "^bar\$" output
test_expect_success 'archive --list shows only enabled remote filters' '
git archive --list --remote=. >output &&
! grep "^tar\.foo\$" output &&
grep "^bar\$" output
test_expect_success 'invoke tar filter by format' '
git archive HEAD > &&
tr ab ba < >config.tar &&
test_cmp_bin b.tar config.tar &&
git archive --format=bar HEAD > &&
tr ab ba < >config.tar &&
test_cmp_bin b.tar config.tar
test_expect_success 'invoke tar filter by extension' '
git archive -o HEAD &&
test_cmp_bin &&
git archive -o HEAD &&
test_expect_success 'default output format remains tar' '
git archive -o config-implicit.baz HEAD &&
test_cmp_bin b.tar config-implicit.baz
test_expect_success 'extension matching requires dot' '
git archive -o HEAD &&
test_cmp_bin b.tar
test_expect_success 'only enabled filters are available remotely' '
test_must_fail git archive --remote=. HEAD \
> &&
git archive --remote=. --format=bar > HEAD &&
test_expect_success GZIP 'git archive --format=tgz' '
git archive --format=tgz HEAD >j.tgz
test_expect_success GZIP 'git archive --format=tar.gz' '
git archive --format=tar.gz HEAD >j1.tar.gz &&
test_cmp_bin j.tgz j1.tar.gz
test_expect_success GZIP 'infer tgz from .tgz filename' '
git archive --output=j2.tgz HEAD &&
test_cmp_bin j.tgz j2.tgz
test_expect_success GZIP 'infer tgz from .tar.gz filename' '
git archive --output=j3.tar.gz HEAD &&
test_cmp_bin j.tgz j3.tar.gz
test_expect_success GZIP 'extract tgz file' '
gzip -d -c <j.tgz >j.tar &&
test_cmp_bin b.tar j.tar
test_expect_success GZIP 'remote tar.gz is allowed by default' '
git archive --remote=. --format=tar.gz HEAD >remote.tar.gz &&
test_cmp_bin j.tgz remote.tar.gz
test_expect_success GZIP 'remote tar.gz can be disabled' '
git config tar.tar.gz.remote false &&
test_must_fail git archive --remote=. --format=tar.gz HEAD \
test_expect_success 'archive and :(glob)' '
git archive -v HEAD -- ":(glob)**/sh" >/dev/null 2>actual &&
cat >expect <<EOF &&
test_cmp expect actual
test_expect_success 'catch non-matching pathspec' '
test_must_fail git archive -v HEAD -- "*.abc" >/dev/null
# Pull the size and date of each entry in a tarfile using the system tar.
# We'll pull out only the year from the date; that avoids any question of
# timezones impacting the result (as long as we keep our test times away from a
# year boundary; our reference times are all in August).
# The output of tar_info is expected to be "<size> <year>", both in decimal. It
# ignores the return value of tar. We have to do this, because some of our test
# input is only partial (the real data is 64GB in some cases).
tar_info () {
"$TAR" tvf "$1" |
awk '{
split($4, date, "-")
print $3 " " date[1]
# See if our system tar can handle a tar file with huge sizes and dates far in
# the future, and that we can actually parse its output.
# The reference file was generated by GNU tar, and the magic time and size are
# both octal 01000000000001, which overflows normal ustar fields.
test_lazy_prereq TAR_HUGE '
echo "68719476737 4147" >expect &&
tar_info "$TEST_DIRECTORY"/t5000/huge-and-future.tar >actual &&
test_cmp expect actual
test_expect_success LONG_IS_64BIT 'set up repository with huge blob' '
obj=$(test_oid obj) &&
path=$(test_oid_to_path $obj) &&
mkdir -p .git/objects/$(dirname $path) &&
cp "$TEST_DIRECTORY"/t5000/huge-object .git/objects/$path &&
rm -f .git/index &&
git update-index --add --cacheinfo 100644,$obj,huge &&
git commit -m huge
# We expect git to die with SIGPIPE here (otherwise we
# would generate the whole 64GB).
test_expect_success LONG_IS_64BIT 'generate tar with huge size' '
git archive HEAD
echo $? >exit-code
} | test_copy_bytes 4096 >huge.tar &&
echo 141 >expect &&
test_cmp expect exit-code
test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our huge size' '
echo 68719476737 >expect &&
tar_info huge.tar | cut -d" " -f1 >actual &&
test_cmp expect actual
test_expect_success TIME_IS_64BIT 'set up repository with far-future commit' '
rm -f .git/index &&
echo content >file &&
git add file &&
GIT_COMMITTER_DATE="@68719476737 +0000" \
git commit -m "tempori parendum"
test_expect_success TIME_IS_64BIT 'generate tar with future mtime' '
git archive HEAD >future.tar
test_expect_success TAR_HUGE,TIME_IS_64BIT,TIME_T_IS_64BIT 'system tar can read our future mtime' '
echo 4147 >expect &&
tar_info future.tar | cut -d" " -f2 >actual &&
test_cmp expect actual