list-objects: support for skipping tree traversal

diff --git a/t/t5317-pack-objects-filter-objects.sh b/t/t5317-pack-objects-filter-objects.sh
index 9839b48c1c537bfac14b31c7db913555553fcf67..d9dccf4d4db8be7f3f727d394c320b3e30b04728 100755 (executable)
--- a/t/t5317-pack-objects-filter-objects.sh
+++ b/t/t5317-pack-objects-filter-objects.sh
@@ -69,7 +69,35 @@ test_expect_success 'get an error for missing tree object' '
        test_must_fail git -C r5 pack-objects --rev --stdout 2>bad_tree <<-EOF &&
        HEAD
        EOF
-       grep -q "bad tree object" bad_tree
+       grep "bad tree object" bad_tree
+'
+
+test_expect_success 'setup for tests of tree:0' '
+       mkdir r1/subtree &&
+       echo "This is a file in a subtree" >r1/subtree/file &&
+       git -C r1 add subtree/file &&
+       git -C r1 commit -m subtree
+'
+
+test_expect_success 'verify tree:0 packfile has no blobs or trees' '
+       git -C r1 pack-objects --rev --stdout --filter=tree:0 >commitsonly.pack <<-EOF &&
+       HEAD
+       EOF
+       git -C r1 index-pack ../commitsonly.pack &&
+       git -C r1 verify-pack -v ../commitsonly.pack >objs &&
+       ! grep -E "tree|blob" objs
+'
+
+test_expect_success 'grab tree directly when using tree:0' '
+       # We should get the tree specified directly but not its blobs or subtrees.
+       git -C r1 pack-objects --rev --stdout --filter=tree:0 >commitsonly.pack <<-EOF &&
+       HEAD:
+       EOF
+       git -C r1 index-pack ../commitsonly.pack &&
+       git -C r1 verify-pack -v ../commitsonly.pack >objs &&
+       awk "/tree|blob/{print \$1}" objs >trees_and_blobs &&
+       git -C r1 rev-parse HEAD: >expected &&
+       test_cmp expected trees_and_blobs
 '
 
 # Test blob:limit=<n>[kmg] filter.