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Diffstat (limited to 'third_party/git/t/t5004-archive-corner-cases.sh')
| -rwxr-xr-x | third_party/git/t/t5004-archive-corner-cases.sh | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/third_party/git/t/t5004-archive-corner-cases.sh b/third_party/git/t/t5004-archive-corner-cases.sh new file mode 100755 index 000000000000..271eb5a1fdfb --- /dev/null +++ b/third_party/git/t/t5004-archive-corner-cases.sh @@ -0,0 +1,207 @@ +#!/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$b + done + done && + git add 00 && + git commit -m "256 files in 1 directory" && + + # duplicate it to get 65536 files in 256 directories + subtree=$(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" + 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" many.zip | head -2 | sed -n "2s/.* //p" >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 $i" + done >tree && + tree=$(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 +' + +test_done |