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git/t/t5000-tar-tree.sh

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#!/bin/sh
#
# 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
used.
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-lib.sh
SUBSTFORMAT=%H%n
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() {
file=$1
header=$2=
while read len rest
do
if test "$len" = $(echo "$len $rest" | wc -c)
then
case "$rest" in
$header*)
echo "${rest#$header}"
;;
esac
fi
done <"$file"
}
check_tar() {
tarfile=$1.tar
listfile=$1.lst
dir=$1
dir_with_prefix=$dir/$2
test_expect_success ' extract tar archive' '
(mkdir $dir && cd $dir && "$TAR" xf -) <$tarfile
'
test_expect_success TAR_NEEDS_PAX_FALLBACK ' interpret pax headers' '
(
cd $dir &&
for header in *.paxheader
do
data=${header%.paxheader}.data &&
if test -h $data || test -e $data
then
path=$(get_pax_header $header path) &&
if test -n "$path"
then
mv "$data" "$path" || exit 1
fi
fi
done
)
'
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
'
}
check_added() {
dir=$1
path_in_fs=$2
path_in_archive=$3
test_expect_success " validate extra file $path_in_archive" '
diff -r $path_in_fs $dir/$path_in_archive
'
}
test_expect_success 'setup' '
test_oid_cache <<-EOF
obj sha1:19f9c8273ec45a8938e6999cb59b3ff66739902a
obj sha256:3c666f798798601571f5cec0adb57ce4aba8546875e7693177e0535f34d2c49b
EOF
'
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
else
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 $p || exit 1
done &&
echo text >file_with_long_path
) &&
(cd a && find .) | sort >a.lst
'
test_expect_success \
'add ignored file' \
'echo ignore me >a/ignored &&
echo ignored export-ignore >.git/info/attributes'
test_expect_success 'add files to repository' '
git add a &&
GIT_COMMITTER_DATE="2005-05-27 22:00" git commit -m initial
'
test_expect_success 'setup export-subst' '
echo "substfile?" export-subst >>.git/info/attributes &&
git log --max-count=1 "--pretty=format:A${SUBSTFORMAT}O" HEAD \
>a/substfile1
'
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 --add-file' '
echo untracked >untracked &&
git archive --add-file=untracked HEAD >with_untracked.tar
'
check_tar with_untracked
check_added with_untracked untracked untracked
test_expect_success 'git archive --add-file twice' '
echo untracked >untracked &&
git archive --prefix=one/ --add-file=untracked \
--prefix=two/ --add-file=untracked \
--prefix= HEAD >with_untracked2.tar
'
check_tar with_untracked2
check_added with_untracked2 untracked one/untracked
check_added with_untracked2 untracked two/untracked
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' '
git --git-dir bare.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 remote.foo.url . &&
(
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 &&
"$TAR" xf b.tar -C extract a/a &&
test-tool chmtime --get extract/a/a >b.mtime &&
echo "1117231200" >expected.mtime &&
test_cmp expected.mtime b.mtime
'
test_expect_success 'git get-tar-commit-id' '
git get-tar-commit-id <b.tar >actual &&
git rev-parse HEAD >expect &&
test_cmp expect actual
'
test_expect_success 'git archive with --output, override inferred format' '
git archive --format=tar --output=d4.zip HEAD &&
test_cmp_bin b.tar d4.zip
'
test_expect_success GZIP 'git archive with --output and --remote creates .tgz' '
git archive --output=d5.tgz --remote=. HEAD &&
gzip -d -c <d5.tgz >d5.tar &&
test_cmp_bin b.tar d5.tar
'
test_expect_success 'git archive --list outside of a git repo' '
nongit git archive --list
'
test_expect_success 'git archive --remote outside of a git repo' '
git archive HEAD >expect.tar &&
nongit git archive --remote="$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 tar.tar.foo.command "tr ab ba" &&
git config tar.bar.command "tr ab ba" &&
git config tar.bar.remote 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 --format=tar.foo HEAD >config.tar.foo &&
tr ab ba <config.tar.foo >config.tar &&
test_cmp_bin b.tar config.tar &&
git archive --format=bar HEAD >config.bar &&
tr ab ba <config.bar >config.tar &&
test_cmp_bin b.tar config.tar
'
test_expect_success 'invoke tar filter by extension' '
git archive -o config-implicit.tar.foo HEAD &&
test_cmp_bin config.tar.foo config-implicit.tar.foo &&
git archive -o config-implicit.bar HEAD &&
test_cmp_bin config.tar.foo config-implicit.bar
'
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 config-implicittar.foo HEAD &&
test_cmp_bin b.tar config-implicittar.foo
'
test_expect_success 'only enabled filters are available remotely' '
test_must_fail git archive --remote=. --format=tar.foo HEAD \
>remote.tar.foo &&
git archive --remote=. --format=bar >remote.bar HEAD &&
test_cmp_bin remote.bar config.bar
'
test_expect_success 'git archive --format=tgz' '
git archive --format=tgz HEAD >j.tgz
'
test_expect_success '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 'infer tgz from .tgz filename' '
git archive --output=j2.tgz HEAD &&
test_cmp_bin j.tgz j2.tgz
'
test_expect_success '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 '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 'remote tar.gz can be disabled' '
git config tar.tar.gz.remote false &&
test_must_fail git archive --remote=. --format=tar.gz HEAD \
>remote.tar.gz
'
test_expect_success GZIP 'git archive --format=tgz (external gzip)' '
test_config tar.tgz.command "gzip -cn" &&
git archive --format=tgz HEAD >external_gzip.tgz
'
test_expect_success GZIP 'git archive --format=tar.gz (external gzip)' '
test_config tar.tar.gz.command "gzip -cn" &&
git archive --format=tar.gz HEAD >external_gzip.tar.gz &&
test_cmp_bin external_gzip.tgz external_gzip.tar.gz
'
test_expect_success GZIP 'extract tgz file (external gzip)' '
gzip -d -c <external_gzip.tgz >external_gzip.tar &&
test_cmp_bin b.tar external_gzip.tar
'
test_expect_success 'archive and :(glob)' '
git archive -v HEAD -- ":(glob)**/sh" >/dev/null 2>actual &&
cat >expect <<EOF &&
a/
a/bin/
a/bin/sh
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 (2^34 - 1) commit' '
rm -f .git/index &&
echo foo >file &&
git add file &&
GIT_COMMITTER_DATE="@17179869183 +0000" \
git commit -m "tempori parendum"
'
test_expect_success TIME_IS_64BIT 'generate tar with far-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 2514 >expect &&
tar_info future.tar | cut -d" " -f2 >actual &&
test_cmp expect actual
'
test_expect_success TIME_IS_64BIT 'set up repository with far-far-future (2^36 + 1) commit' '
rm -f .git/index &&
echo content >file &&
git add file &&
GIT_TEST_COMMIT_GRAPH=0 GIT_COMMITTER_DATE="@68719476737 +0000" \
git commit -m "tempori parendum"
'
test_expect_success TIME_IS_64BIT 'generate tar with far-far-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
'
test_done