untracked-cache: be defensive about missing NULs in index

diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh
index 38247afbec2ef915fd2aa19da58f9ac59b698b60..6162e2a8e66f6f0e42e0a8ba6ee3b728e8e84918 100755 (executable)
--- a/t/t7700-repack.sh
+++ b/t/t7700-repack.sh
@@ -4,6 +4,12 @@ test_description='git repack works correctly'
 
 . ./test-lib.sh
 
+commit_and_pack() {
+       test_commit "$@" >/dev/null &&
+       SHA1=$(git pack-objects --all --unpacked --incremental .git/objects/pack/pack </dev/null) &&
+       echo pack-${SHA1}.pack
+}
+
 test_expect_success 'objects in packs marked .keep are not repacked' '
        echo content1 > file1 &&
        echo content2 > file2 &&
@@ -196,5 +202,24 @@ test_expect_success 'objects made unreachable by grafts only are kept' '
        git cat-file -t $H1
 '
 
+test_expect_success 'repack --keep-pack' '
+       test_create_repo keep-pack &&
+       (
+               cd keep-pack &&
+               P1=$(commit_and_pack 1) &&
+               P2=$(commit_and_pack 2) &&
+               P3=$(commit_and_pack 3) &&
+               P4=$(commit_and_pack 4) &&
+               ls .git/objects/pack/*.pack >old-counts &&
+               test_line_count = 4 old-counts &&
+               git repack -a -d --keep-pack $P1 --keep-pack $P4 &&
+               ls .git/objects/pack/*.pack >new-counts &&
+               grep -q $P1 new-counts &&
+               grep -q $P4 new-counts &&
+               test_line_count = 3 new-counts &&
+               git fsck
+       )
+'
+
 test_done