X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=merge-recursive.c;h=dd4fbd0e6bc22f2e5f5667205b47165f8aebbbd0;hb=c8a5672ea5cf593708b29f8279bd651c16047c6e;hp=10d7913b06902495eaa8e03925ad712599bc8202;hpb=caa7dac163f7f7fc827da6fd4a5aba259a50e1ab;p=git.git

diff --git a/merge-recursive.c b/merge-recursive.c
index 10d7913b0..dd4fbd0e6 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -3,6 +3,7 @@
  * Fredrik Kuivinen.
  * The thieves were Alex Riesen and Johannes Schindelin, in June/July 2006
  */
+#include "advice.h"
 #include "cache.h"
 #include "cache-tree.h"
 #include "commit.h"
@@ -86,6 +87,7 @@ static void flush_output(struct merge_options *o)
 	}
 }
 
+__attribute__((format (printf, 3, 4)))
 static void output(struct merge_options *o, int v, const char *fmt, ...)
 {
 	int len;
@@ -181,6 +183,7 @@ static int git_merge_trees(int index_only,
 	opts.fn = threeway_merge;
 	opts.src_index = &the_index;
 	opts.dst_index = &the_index;
+	opts.msgs = get_porcelain_error_msgs();
 
 	init_tree_desc_from_tree(t+0, common);
 	init_tree_desc_from_tree(t+1, head);
@@ -201,7 +204,8 @@ struct tree *write_tree_from_memory(struct merge_options *o)
 		for (i = 0; i < active_nr; i++) {
 			struct cache_entry *ce = active_cache[i];
 			if (ce_stage(ce))
-				output(o, 0, "%d %.*s", ce_stage(ce), ce_namelen(ce), ce->name);
+				output(o, 0, "%d %.*s", ce_stage(ce),
+				       (int)ce_namelen(ce), ce->name);
 		}
 		return NULL;
 	}
@@ -1167,6 +1171,28 @@ static int process_entry(struct merge_options *o,
 	return clean_merge;
 }
 
+struct unpack_trees_error_msgs get_porcelain_error_msgs(void)
+{
+	struct unpack_trees_error_msgs msgs = {
+		/* would_overwrite */
+		"Your local changes to '%s' would be overwritten by merge.  Aborting.",
+		/* not_uptodate_file */
+		"Your local changes to '%s' would be overwritten by merge.  Aborting.",
+		/* not_uptodate_dir */
+		"Updating '%s' would lose untracked files in it.  Aborting.",
+		/* would_lose_untracked */
+		"Untracked working tree file '%s' would be %s by merge.  Aborting",
+		/* bind_overlap -- will not happen here */
+		NULL,
+	};
+	if (advice_commit_before_merge) {
+		msgs.would_overwrite = msgs.not_uptodate_file =
+			"Your local changes to '%s' would be overwritten by merge.  Aborting.\n"
+			"Please, commit your changes or stash them before you can merge.";
+	}
+	return msgs;
+}
+
 int merge_trees(struct merge_options *o,
 		struct tree *head,
 		struct tree *merge,
@@ -1188,10 +1214,14 @@ int merge_trees(struct merge_options *o,
 
 	code = git_merge_trees(o->call_depth, common, head, merge);
 
-	if (code != 0)
-		die("merging of trees %s and %s failed",
-		    sha1_to_hex(head->object.sha1),
-		    sha1_to_hex(merge->object.sha1));
+	if (code != 0) {
+		if (show(o, 4) || o->call_depth)
+			die("merging of trees %s and %s failed",
+			    sha1_to_hex(head->object.sha1),
+			    sha1_to_hex(merge->object.sha1));
+		else
+			exit(128);
+	}
 
 	if (unmerged_cache()) {
 		struct string_list *entries, *re_head, *re_merge;