1 files changed, 9 insertions, 0 deletions
diff --git a/strbuf.c b/strbuf.c
index 29df55b1b..f3c44fb3b 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -743,3 +743,12 @@ void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm)
 	}
 	strbuf_setlen(sb, sb->len + len);
 }
+
+void strbuf_add_unique_abbrev(struct strbuf *sb, const unsigned char *sha1,
+			      int abbrev_len)
+{
+	int r;
+	strbuf_grow(sb, GIT_SHA1_HEXSZ + 1);
+	r = find_unique_abbrev_r(sb->buf + sb->len, sha1, abbrev_len);
+	strbuf_setlen(sb, sb->len + r);
+}