grep: NUL terminate input from a file

[git.git] / builtin-merge.c

diff --git a/builtin-merge.c b/builtin-merge.c
index b6b84286b26a4317dfd5185ae83fd861c6f9fa7d..921453949a1bdccd796b43f29137f419b6416baf 100644 (file)
--- a/builtin-merge.c
+++ b/builtin-merge.c
@@ -70,7 +70,7 @@ static int option_parse_message(const struct option *opt,
        if (unset)
                strbuf_setlen(buf, 0);
        else if (arg) {
-               strbuf_addf(buf, "%s\n\n", arg);
+               strbuf_addf(buf, "%s%s", buf->len ? "\n\n" : "", arg);
                have_message = 1;
        } else
                return error("switch `m' requires a value");
@@ -106,8 +106,8 @@ static struct strategy *get_strategy(const char *name)
                                        found = 1;
                        if (!found)
                                add_cmdname(&not_strategies, ent->name, ent->len);
-                       exclude_cmds(&main_cmds, &not_strategies);
                }
+               exclude_cmds(&main_cmds, &not_strategies);
        }
        if (!is_in_cmdlist(&main_cmds, name) && !is_in_cmdlist(&other_cmds, name)) {
                fprintf(stderr, "Could not find merge strategy '%s'.\n", name);
@@ -650,6 +650,7 @@ static int checkout_fast_forward(unsigned char *head, unsigned char *remote)
        opts.verbose_update = 1;
        opts.merge = 1;
        opts.fn = twoway_merge;
+       opts.msgs = get_porcelain_error_msgs();
 
        trees[nr_trees] = parse_tree_indirect(head);
        if (!trees[nr_trees++])
@@ -792,7 +793,7 @@ static int suggest_conflicts(void)
 static struct commit *is_old_style_invocation(int argc, const char **argv)
 {
        struct commit *second_token = NULL;
-       if (argc > 1) {
+       if (argc > 2) {
                unsigned char second_sha1[20];
 
                if (get_sha1(argv[1], second_sha1))
@@ -840,7 +841,6 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
        const char *best_strategy = NULL, *wt_strategy = NULL;
        struct commit_list **remotes = &remoteheads;
 
-       setup_work_tree();
        if (file_exists(git_path("MERGE_HEAD")))
                die("You have not concluded your merge. (MERGE_HEAD exists)");
        if (read_cache_unmerged())
@@ -928,11 +928,13 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
                 * codepath so we discard the error in this
                 * loop.
                 */
-               for (i = 0; i < argc; i++)
-                       merge_name(argv[i], &msg);
-               fmt_merge_msg(option_log, &msg, &merge_msg);
-               if (merge_msg.len)
-                       strbuf_setlen(&merge_msg, merge_msg.len-1);
+               if (!have_message) {
+                       for (i = 0; i < argc; i++)
+                               merge_name(argv[i], &msg);
+                       fmt_merge_msg(option_log, &msg, &merge_msg);
+                       if (merge_msg.len)
+                               strbuf_setlen(&merge_msg, merge_msg.len-1);
+               }
        }
 
        if (head_invalid || !argc)