Teach runstatus about --untracked

Actually, teach runstatus what to do if it is not passed; it should not list
the contents of completely untracked directories, but only the name of that
directory (plus a trailing '/').

[jc: with comments by Jeff King to match hide-empty-directories
 behaviour of the original.]

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

builtin-runstatus.c

@@ -25,6 +25,8 @@ int cmd_runstatus(int argc, const char **argv, const char *prefix)
 		}
 		else if (!strcmp(argv[i], "--verbose"))
 			s.verbose = 1;
+		else if (!strcmp(argv[i], "--untracked"))
+			s.untracked = 1;
 		else
 			usage(runstatus_usage);
 	}

git-commit.sh

@@ -82,7 +82,8 @@ run_status () {
   esac
   git-runstatus ${color} \
                 ${verbose:+--verbose} \
-                ${amend:+--amend}
+                ${amend:+--amend} \
+		${untracked_files:+--untracked}
 }
 
 trap '

wt-status.c

@@ -50,6 +50,7 @@ void wt_status_prepare(struct wt_status *s)
 	s->amend = 0;
 	s->verbose = 0;
 	s->commitable = 0;
+	s->untracked = 0;
 }
 
 static void wt_status_print_header(const char *main, const char *sub)
@@ -188,6 +189,10 @@ static void wt_status_print_untracked(const struct wt_status *s)
 	memset(&dir, 0, sizeof(dir));
 
 	dir.exclude_per_dir = ".gitignore";
+	if (!s->untracked) {
+		dir.show_other_directories = 1;
+		dir.hide_empty_directories = 1;
+	}
 	x = git_path("info/exclude");
 	if (file_exists(x))
 		add_excludes_from_file(&dir, x);

wt-status.h

@@ -15,6 +15,7 @@ struct wt_status {
 	int commitable;
 	int verbose;
 	int amend;
+	int untracked;
 };
 
 int git_status_config(const char *var, const char *value);