git-commit-vandalism/t/t5004-archive-corner-cases.sh
René Scharfe 24676f02ba t5004: fix issue with empty archive test and bsdtar
bsdtar, which is the default tar on Mac OS X, handles empty archives
just fine but reports archives containing only a pax extended header
comment as damaged.  Work around the issue by explicitly generating
the archive for the tree and not the commit, which causes git archive
to omit the commit hash comment record from the tar file.

Reported-by: BJ Hargrave <bj@bjhargrave.com>
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-10 12:26:14 -07:00

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#!/bin/sh
test_description='test corner cases of git-archive'
. ./test-lib.sh
test_expect_success 'create commit with empty tree' '
git commit --allow-empty -m foo
'
# Make a dir and clean it up afterwards
make_dir() {
mkdir "$1" &&
test_when_finished "rm -rf '$1'"
}
# Check that the dir given in "$1" contains exactly the
# set of paths given as arguments.
check_dir() {
dir=$1; shift
{
echo "$dir" &&
for i in "$@"; do
echo "$dir/$i"
done
} | sort >expect &&
find "$dir" -print | sort >actual &&
test_cmp expect actual
}
test_expect_success 'tar archive of empty tree is empty' '
git archive --format=tar HEAD: >empty.tar &&
make_dir extract &&
"$TAR" xf empty.tar -C extract &&
check_dir extract
'
test_expect_success 'tar archive of empty tree with prefix' '
git archive --format=tar --prefix=foo/ HEAD >prefix.tar &&
make_dir extract &&
"$TAR" xf prefix.tar -C extract &&
check_dir extract foo
'
test_expect_success UNZIP 'zip archive of empty tree is empty' '
# Detect the exit code produced when our particular flavor of unzip
# sees an empty archive. Infozip will generate a warning and exit with
# code 1. But in the name of sanity, we do not expect other unzip
# implementations to do the same thing (it would be perfectly
# reasonable to exit 0, for example).
#
# This makes our test less rigorous on some platforms (unzip may not
# handle the empty repo at all, making our later check of its exit code
# a no-op). But we cannot do anything reasonable except skip the test
# on such platforms anyway, and this is the moral equivalent.
"$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/empty.zip
expect_code=$?
git archive --format=zip HEAD >empty.zip &&
make_dir extract &&
(
cd extract &&
test_expect_code $expect_code "$GIT_UNZIP" ../empty.zip
) &&
check_dir extract
'
test_expect_success UNZIP 'zip archive of empty tree with prefix' '
# We do not have to play exit-code tricks here, because our
# result should not be empty; it has a directory in it.
git archive --format=zip --prefix=foo/ HEAD >prefix.zip &&
make_dir extract &&
(
cd extract &&
"$GIT_UNZIP" ../prefix.zip
) &&
check_dir extract foo
'
test_expect_success 'archive complains about pathspec on empty tree' '
test_must_fail git archive --format=tar HEAD -- foo >/dev/null
'
test_expect_success 'create a commit with an empty subtree' '
empty_tree=$(git hash-object -t tree /dev/null) &&
root_tree=$(printf "040000 tree $empty_tree\tsub\n" | git mktree)
'
test_expect_success 'archive empty subtree with no pathspec' '
git archive --format=tar $root_tree >subtree-all.tar &&
make_dir extract &&
"$TAR" xf subtree-all.tar -C extract &&
check_dir extract sub
'
test_expect_success 'archive empty subtree by direct pathspec' '
git archive --format=tar $root_tree -- sub >subtree-path.tar &&
make_dir extract &&
"$TAR" xf subtree-path.tar -C extract &&
check_dir extract sub
'
test_done