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-rw-r--r--sha1_file.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sha1_file.c b/sha1_file.c
index 72de38909e..e42ef96d45 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2525,3 +2525,13 @@ int read_pack_header(int fd, struct pack_header *header)
return PH_ERROR_PROTOCOL;
return 0;
}
+
+void assert_sha1_type(const unsigned char *sha1, enum object_type expect)
+{
+ enum object_type type = sha1_object_info(sha1, NULL);
+ if (type < 0)
+ die("%s is not a valid object", sha1_to_hex(sha1));
+ if (type != expect)
+ die("%s is not a valid '%s' object", sha1_to_hex(sha1),
+ typename(expect));
+}