-extern void *read_tree_with_tree_or_commit_sha1(const unsigned char *sha1,
- unsigned long *size,
- unsigned char *tree_sha1_ret);
+extern void *read_object_with_reference(const unsigned char *sha1,
+ const unsigned char *required_type,
+ unsigned long *size,
+ unsigned char *sha1_ret);
+
+const char *show_date(unsigned long time, int timezone);
+void parse_date(char *date, char *buf, int bufsize);
+void datestamp(char *buf, int bufsize);