sha1-array: provide oid_array_filter
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/sha1-array.c b/sha1-array.c
index b94e0ec..d922e94 100644
--- a/sha1-array.c
+++ b/sha1-array.c
@@ -77,3 +77,20 @@ int oid_array_for_each_unique(struct oid_array *array,
}
return 0;
}
+
+void oid_array_filter(struct oid_array *array,
+ for_each_oid_fn want,
+ void *cb_data)
+{
+ unsigned nr = array->nr, src, dst;
+ struct object_id *oids = array->oid;
+
+ for (src = dst = 0; src < nr; src++) {
+ if (want(&oids[src], cb_data)) {
+ if (src != dst)
+ oidcpy(&oids[dst], &oids[src]);
+ dst++;
+ }
+ }
+ array->nr = dst;
+}
