2 files changed, 23 insertions, 0 deletions

diff --git a/connect.c b/connect.c
index ad0e4e8e56..eaa13b41bb 100644
--- a/connect.c
+++ b/connect.c
@@ -511,6 +511,28 @@ static const char *parse_feature_value(const char *feature_list, const char *fea
 	return NULL;
 }
 
+int server_supports_hash(const char *desired, int *feature_supported)
+{
+	int offset = 0;
+	int len;
+	const char *hash;
+
+	hash = next_server_feature_value("object-format", &len, &offset);
+	if (feature_supported)
+		*feature_supported = !!hash;
+	if (!hash) {
+		hash = hash_algos[GIT_HASH_SHA1].name;
+		len = strlen(hash);
+	}
+	while (hash) {
+		if (!xstrncmpz(desired, hash, len))
+			return 1;
+
+		hash = next_server_feature_value("object-format", &len, &offset);
+	}
+	return 0;
+}
+
 int parse_feature_request(const char *feature_list, const char *feature)
 {
 	return !!parse_feature_value(feature_list, feature, NULL, NULL);
diff --git a/connect.h b/connect.h
index 4d76a6017d..fc75d6a457 100644
--- a/connect.h
+++ b/connect.h
@@ -18,6 +18,7 @@ int url_is_local_not_ssh(const char *url);
 struct packet_reader;
 enum protocol_version discover_version(struct packet_reader *reader);
 
+int server_supports_hash(const char *desired, int *feature_supported);
 int server_supports_v2(const char *c, int die_on_error);
 int server_feature_v2(const char *c, const char **v);
 int server_supports_feature(const char *c, const char *feature,