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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
commitc8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch)
tree24e09d9f84dec336720cf393e156089ca2835791 /t/t5004-archive-corner-cases.sh
parentInitial commit. (diff)
downloadgit-c8bae7493d2f2910b57f13ded012e86bdcfb0532.tar.xz
git-c8bae7493d2f2910b57f13ded012e86bdcfb0532.zip
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/t5004-archive-corner-cases.sh')
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diff --git a/t/t5004-archive-corner-cases.sh b/t/t5004-archive-corner-cases.sh
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+#!/bin/sh
+
+test_description='test corner cases of git-archive'
+. ./test-lib.sh
+
+# the 10knuls.tar file is used to test for an empty git generated tar
+# without having to invoke tar because an otherwise valid empty GNU tar
+# will be considered broken by {Open,Net}BSD tar
+test_expect_success 'create commit with empty tree and fake empty tar' '
+ git commit --allow-empty -m foo &&
+ perl -e "print \"\\0\" x 10240" >10knuls.tar
+'
+
+# 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" ! -name pax_global_header -print | sort >actual &&
+ test_cmp expect actual
+}
+
+test_lazy_prereq UNZIP_ZIP64_SUPPORT '
+ "$GIT_UNZIP" -v | grep ZIP64_SUPPORT
+'
+
+# bsdtar/libarchive versions before 3.1.3 consider a tar file with a
+# global pax header that is not followed by a file record as corrupt.
+if "$TAR" tf "$TEST_DIRECTORY"/t5004/empty-with-pax-header.tar >/dev/null 2>&1
+then
+ test_set_prereq HEADER_ONLY_TAR_OK
+fi
+
+test_expect_success HEADER_ONLY_TAR_OK 'tar archive of commit with empty tree' '
+ git archive --format=tar HEAD >empty-with-pax-header.tar &&
+ make_dir extract &&
+ "$TAR" xf empty-with-pax-header.tar -C extract &&
+ check_dir extract
+'
+
+test_expect_success 'tar archive of empty tree is empty' '
+ git archive --format=tar HEAD: >empty.tar &&
+ test_cmp_bin 10knuls.tar empty.tar
+'
+
+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 &&
+ test_cmp_bin 10knuls.tar subtree-all.tar
+'
+
+test_expect_success 'archive empty subtree by direct pathspec' '
+ git archive --format=tar $root_tree -- sub >subtree-path.tar &&
+ test_cmp_bin 10knuls.tar subtree-path.tar
+'
+
+ZIPINFO=zipinfo
+
+test_lazy_prereq ZIPINFO '
+ n=$("$ZIPINFO" "$TEST_DIRECTORY"/t5004/empty.zip | sed -n "2s/.* //p")
+ test "x$n" = "x0"
+'
+
+test_expect_success ZIPINFO 'zip archive with many entries' '
+ # add a directory with 256 files
+ mkdir 00 &&
+ for a in 0 1 2 3 4 5 6 7 8 9 a b c d e f
+ do
+ for b in 0 1 2 3 4 5 6 7 8 9 a b c d e f
+ do
+ : >00/$a$b || return 1
+ done
+ done &&
+ git add 00 &&
+ git commit -m "256 files in 1 directory" &&
+
+ # duplicate it to get 65536 files in 256 directories
+ subtree=$(git write-tree --prefix=00/) &&
+ for c in 0 1 2 3 4 5 6 7 8 9 a b c d e f
+ do
+ for d in 0 1 2 3 4 5 6 7 8 9 a b c d e f
+ do
+ echo "040000 tree $subtree $c$d" || return 1
+ done
+ done >tree &&
+ tree=$(git mktree <tree) &&
+
+ # zip them
+ git archive -o many.zip $tree &&
+
+ # check the number of entries in the ZIP file directory
+ expr 65536 + 256 >expect &&
+ "$ZIPINFO" -h many.zip >zipinfo &&
+ sed -n "2s/.* //p" <zipinfo >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success EXPENSIVE,UNZIP,UNZIP_ZIP64_SUPPORT \
+ 'zip archive bigger than 4GB' '
+ # build string containing 65536 characters
+ s=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef &&
+ s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
+ s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
+
+ # create blob with a length of 65536 + 1 bytes
+ blob=$(echo $s | git hash-object -w --stdin) &&
+
+ # create tree containing 65500 entries of that blob
+ for i in $(test_seq 1 65500)
+ do
+ echo "100644 blob $blob $i" || return 1
+ done >tree &&
+ tree=$(git mktree <tree) &&
+
+ # zip it, creating an archive a bit bigger than 4GB
+ git archive -0 -o many-big.zip $tree &&
+
+ "$GIT_UNZIP" -t many-big.zip 9999 65500 &&
+ "$GIT_UNZIP" -t many-big.zip
+'
+
+test_expect_success EXPENSIVE,LONG_IS_64BIT,UNZIP,UNZIP_ZIP64_SUPPORT,ZIPINFO \
+ 'zip archive with files bigger than 4GB' '
+ # Pack created with:
+ # dd if=/dev/zero of=file bs=1M count=4100 && git hash-object -w file
+ mkdir -p .git/objects/pack &&
+ (
+ cd .git/objects/pack &&
+ "$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/big-pack.zip
+ ) &&
+ blob=754a93d6fada4c6873360e6cb4b209132271ab0e &&
+ size=$(expr 4100 "*" 1024 "*" 1024) &&
+
+ # create a tree containing the file
+ tree=$(echo "100644 blob $blob big-file" | git mktree) &&
+
+ # zip it, creating an archive with a file bigger than 4GB
+ git archive -o big.zip $tree &&
+
+ "$GIT_UNZIP" -t big.zip &&
+ "$ZIPINFO" big.zip >big.lst &&
+ grep $size big.lst
+'
+
+build_tree() {
+ perl -e '
+ my $hash = $ARGV[0];
+ foreach my $order (2..6) {
+ $first = 10 ** $order;
+ foreach my $i (-13..-9) {
+ my $name = "a" x ($first + $i);
+ print "100644 blob $hash\t$name\n"
+ }
+ }
+ ' "$1"
+}
+
+test_expect_success 'tar archive with long paths' '
+ blob=$(echo foo | git hash-object -w --stdin) &&
+ tree=$(build_tree $blob | git mktree) &&
+ git archive -o long_paths.tar $tree
+'
+
+test_done