git format-patch: avoid underrun when format.headers is empty or all NLs

[git.git] / unpack-trees.h

diff --git a/unpack-trees.h b/unpack-trees.h
index d436d6ced9939beeb4599dc8fddebe0890e55db8..94e567265af9a69a30dd5c578439b6444e50004d 100644 (file)
--- a/unpack-trees.h
+++ b/unpack-trees.h
@@ -8,6 +8,14 @@ struct unpack_trees_options;
 typedef int (*merge_fn_t)(struct cache_entry **src,
                struct unpack_trees_options *options);
 
+struct unpack_trees_error_msgs {
+       const char *would_overwrite;
+       const char *not_uptodate_file;
+       const char *not_uptodate_dir;
+       const char *would_lose_untracked;
+       const char *bind_overlap;
+};
+
 struct unpack_trees_options {
        unsigned int reset:1,
                     merge:1,
@@ -23,6 +31,7 @@ struct unpack_trees_options {
        int pos;
        struct dir_struct *dir;
        merge_fn_t fn;
+       struct unpack_trees_error_msgs msgs;
 
        int head_idx;
        int merge_size;