setup_unpack_trees_porcelain: take the whole options struct as parameter

This is a preparation patch to let setup_unpack_trees_porcelain set
show_all_errors itself.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/checkout.c

@@ -373,7 +373,7 @@ static int merge_working_tree(struct checkout_opts *opts,
 		topts.src_index = &the_index;
 		topts.dst_index = &the_index;
 
-		setup_unpack_trees_porcelain(topts.msgs, "checkout");
+		setup_unpack_trees_porcelain(&topts, "checkout");
 
 		refresh_cache(REFRESH_QUIET);
 

builtin/merge.c

@@ -705,7 +705,7 @@ int checkout_fast_forward(const unsigned char *head, const unsigned char *remote
 	opts.merge = 1;
 	opts.fn = twoway_merge;
 	opts.show_all_errors = 1;
-	setup_unpack_trees_porcelain(opts.msgs, "merge");
+	setup_unpack_trees_porcelain(&opts, "merge");
 
 	trees[nr_trees] = parse_tree_indirect(head);
 	if (!trees[nr_trees++])

merge-recursive.c

@@ -185,7 +185,7 @@ static int git_merge_trees(int index_only,
 	opts.fn = threeway_merge;
 	opts.src_index = &the_index;
 	opts.dst_index = &the_index;
-	setup_unpack_trees_porcelain(opts.msgs, "merge");
+	setup_unpack_trees_porcelain(&opts, "merge");
 
 	init_tree_desc_from_tree(t+0, common);
 	init_tree_desc_from_tree(t+1, head);

unpack-trees.c

@@ -50,8 +50,10 @@ const char *unpack_plumbing_errors[NB_UNPACK_TREES_ERROR_TYPES] = {
 	  ? ((o)->msgs[(type)])      \
 	  : (unpack_plumbing_errors[(type)]) )
 
-void setup_unpack_trees_porcelain(const char **msgs, const char *cmd)
+void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
+				  const char *cmd)
 {
+	const char **msgs = opts->msgs;
 	const char *msg;
 	char *tmp;
 	const char *cmd2 = strcmp(cmd, "checkout") ? cmd : "switch branches";

unpack-trees.h

@@ -26,7 +26,8 @@ enum unpack_trees_error_types {
  * Sets the list of user-friendly error messages to be used by the
  * command "cmd" (either merge or checkout)
  */
-void setup_unpack_trees_porcelain(const char **msgs, const char *cmd);
+void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
+				  const char *cmd);
 
 struct rejected_paths_list {
 	char *path;