describe: when failing, tell the user about options that work

diff --git a/log-tree.h b/log-tree.h
index f2a90084ae1874632318c7880e95426eca2682ea..3f7b40027b7203985f018e43ab72a6cfc233e8d7 100644 (file)
--- a/log-tree.h
+++ b/log-tree.h
@@ -13,10 +13,14 @@ int log_tree_commit(struct rev_info *, struct commit *);
 int log_tree_opt_parse(struct rev_info *, const char **, int);
 void show_log(struct rev_info *opt);
 void show_decorations(struct rev_info *opt, struct commit *commit);
-void log_write_email_headers(struct rev_info *opt, const char *name,
+void log_write_email_headers(struct rev_info *opt, struct commit *commit,
                             const char **subject_p,
                             const char **extra_headers_p,
                             int *need_8bit_cte_p);
-void load_ref_decorations(void);
+void load_ref_decorations(int flags);
+
+#define FORMAT_PATCH_NAME_MAX 64
+void get_patch_filename(struct commit *commit, int nr, const char *suffix,
+                       struct strbuf *buf);
 
 #endif