merge-tree: remove redundant code

real_merge() only ever returns "0" or "1" as it dies if the merge status
is less than zero. Therefore the check for "result < 0" is redundant and
the result variable is not needed. The return value of real_merge() is
ignored because exit status of "git merge-tree --stdin" is "0" for both
successful and conflicted merges (the status of each merge is written to
stdout). The return type of real_merge() is not changed as it is used
for the program's exit status when "--stdin" is not given.

Signed-off-by: Phillip Wood <[email protected]>
Acked-by: Elijah Newren <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: phillipwood

builtin/merge-tree.c

@@ -601,7 +601,6 @@ int cmd_merge_tree(int argc,
 		line_termination = '\0';
 		while (strbuf_getline_lf(&buf, stdin) != EOF) {
 			struct strbuf **split;
-			int result;
 			const char *input_merge_base = NULL;
 
 			split = strbuf_split(&buf, ' ');
@@ -618,16 +617,14 @@ int cmd_merge_tree(int argc,
 			if (input_merge_base && split[2] && split[3] && !split[4]) {
 				strbuf_rtrim(split[2]);
 				strbuf_rtrim(split[3]);
-				result = real_merge(&o, input_merge_base, split[2]->buf, split[3]->buf, prefix);
+				real_merge(&o, input_merge_base, split[2]->buf, split[3]->buf, prefix);
 			} else if (!input_merge_base && !split[2]) {
-				result = real_merge(&o, NULL, split[0]->buf, split[1]->buf, prefix);
+				real_merge(&o, NULL, split[0]->buf, split[1]->buf, prefix);
 			} else {
 				die(_("malformed input line: '%s'."), buf.buf);
 			}
 			maybe_flush_or_die(stdout, "stdout");
 
-			if (result < 0)
-				die(_("merging cannot continue; got unclean result of %d"), result);
 			strbuf_list_free(split);
 		}
 		strbuf_release(&buf);