1 files changed, 50 insertions, 0 deletions
diff --git a/t/helper/test-find-pack.c b/t/helper/test-find-pack.c
new file mode 100644
index 0000000000..e8bd793e58
--- /dev/null
+++ b/t/helper/test-find-pack.c
@@ -0,0 +1,50 @@
+#include "test-tool.h"
+#include "object-name.h"
+#include "object-store.h"
+#include "packfile.h"
+#include "parse-options.h"
+#include "setup.h"
+
+/*
+ * Display the path(s), one per line, of the packfile(s) containing
+ * the given object.
+ *
+ * If '--check-count <n>' is passed, then error out if the number of
+ * packfiles containing the object is not <n>.
+ */
+
+static const char *find_pack_usage[] = {
+	"test-tool find-pack [--check-count <n>] <object>",
+	NULL
+};
+
+int cmd__find_pack(int argc, const char **argv)
+{
+	struct object_id oid;
+	struct packed_git *p;
+	int count = -1, actual_count = 0;
+	const char *prefix = setup_git_directory();
+
+	struct option options[] = {
+		OPT_INTEGER('c', "check-count", &count, "expected number of packs"),
+		OPT_END(),
+	};
+
+	argc = parse_options(argc, argv, prefix, options, find_pack_usage, 0);
+	if (argc != 1)
+		usage(find_pack_usage[0]);
+
+	if (repo_get_oid(the_repository, argv[0], &oid))
+		die("cannot parse %s as an object name", argv[0]);
+
+	for (p = get_all_packs(the_repository); p; p = p->next)
+		if (find_pack_entry_one(oid.hash, p)) {
+			printf("%s\n", p->pack_name);
+			actual_count++;
+		}
+
+	if (count > -1 && count != actual_count)
+		die("bad packfile count %d instead of %d", actual_count, count);
+
+	return 0;
+}