[RFC PATCH 2/3] sha1-array: support appending unsigned char hash

[Jonathan Tan <jonathantanmy@google.com>]

In a subsequent patch, sha1_file will need to append object names in the
form of "unsigned char *" to oid arrays. Teach sha1-array support for
that.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
---
 sha1-array.c | 7 +++++++
 sha1-array.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/sha1-array.c b/sha1-array.c
index 838b3bf84..6e0e35391 100644
--- a/sha1-array.c
+++ b/sha1-array.c
@@ -9,6 +9,13 @@ void oid_array_append(struct oid_array *array, const struct object_id *oid)
 	array->sorted = 0;
 }
 
+void oid_array_append_sha1(struct oid_array *array, const unsigned char *sha1)
+{
+	ALLOC_GROW(array->oid, array->nr + 1, array->alloc);
+	hashcpy(array->oid[array->nr++].hash, sha1);
+	array->sorted = 0;
+}
+
 static int void_hashcmp(const void *a, const void *b)
 {
 	return oidcmp(a, b);
diff --git a/sha1-array.h b/sha1-array.h
index 04b075633..3479959e4 100644
--- a/sha1-array.h
+++ b/sha1-array.h
@@ -11,6 +11,7 @@ struct oid_array {
 #define OID_ARRAY_INIT { NULL, 0, 0, 0 }
 
 void oid_array_append(struct oid_array *array, const struct object_id *oid);
+void oid_array_append_sha1(struct oid_array *array, const unsigned char *sha1);
 int oid_array_lookup(struct oid_array *array, const struct object_id *oid);
 void oid_array_clear(struct oid_array *array);
 
-- 
2.13.2.932.g7449e964c-goog