clarify some error messages wrt unknown object types

diff --git a/diff.h b/diff.h
index ce3058e437d5f0142be0746a3e50a3c32045eecb..eff445596d98e46d40dd37843e690de27c5fabf1 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -29,6 +29,7 @@ typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
 #define DIFF_FORMAT_NUMSTAT    0x0004
 #define DIFF_FORMAT_SUMMARY    0x0008
 #define DIFF_FORMAT_PATCH      0x0010
+#define DIFF_FORMAT_SHORTSTAT  0x0020
 
 /* These override all above */
 #define DIFF_FORMAT_NAME       0x0100
@@ -46,6 +47,7 @@ struct diff_options {
        const char *filter;
        const char *orderfile;
        const char *pickaxe;
+       const char *single_follow;
        unsigned recursive:1,
                 tree_in_recursive:1,
                 binary:1,
@@ -102,6 +104,8 @@ extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
                     const char *base, struct diff_options *opt);
 extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
                          const char *base, struct diff_options *opt);
+extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
+                               struct diff_options *opt);
 
 struct combine_diff_path {
        struct combine_diff_path *next;