degesch: add a --format switch

NEWS

@@ -21,6 +21,8 @@
  * degesch: M-! and M-@ to go to the next buffer in order with
    a highlight or new activity respectively
 
+ * degesch: added --format for previewing things like MOTD files
+
  * kike: add support for IRCv3.2 server-time
 
  * ZyklonB: plugins now run in a dedicated data directory

degesch.c

@@ -12803,6 +12803,21 @@ show_logo (struct app_context *ctx)
 		log_global_indent (ctx, "#m", g_logo[i]);
 }
 
+static void
+format_input_and_die (struct app_context *ctx)
+{
+	char buf[513];
+	while (fgets (buf, sizeof buf, stdin))
+	{
+		struct formatter f;
+		formatter_init (&f, ctx, NULL);
+		formatter_add (&f, "#m", buf);
+		formatter_flush (&f, stdout, false);
+		formatter_free (&f);
+	}
+	exit (EXIT_SUCCESS);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -12814,11 +12829,14 @@ main (int argc, char *argv[])
 	{
 		{ 'h', "help", NULL, 0, "display this help and exit" },
 		{ 'V', "version", NULL, 0, "output version information and exit" },
+		// This is mostly intended for previewing formatted MOTD files
+		{ 'f', "format", NULL, OPT_LONG_ONLY, "format IRC text from stdin" },
 		{ 0, NULL, NULL, 0, NULL }
 	};
 
 	struct opt_handler oh;
 	opt_handler_init (&oh, argc, argv, opts, NULL, "Experimental IRC client.");
+	bool format_mode = false;
 
 	int c;
 	while ((c = opt_handler_get (&oh)) != -1)
@@ -12830,6 +12848,9 @@ main (int argc, char *argv[])
 	case 'V':
 		printf (PROGRAM_NAME " " PROGRAM_VERSION "\n");
 		exit (EXIT_SUCCESS);
+	case 'f':
+		format_mode = true;
+		break;
 	default:
 		print_error ("wrong options");
 		opt_handler_usage (&oh, stderr);
@@ -12855,6 +12876,7 @@ main (int argc, char *argv[])
 
 	// The following part is a bit brittle because of interdependencies
 	init_colors (&ctx);
+	if (format_mode)  format_input_and_die (&ctx);
 	init_global_buffer (&ctx);
 	show_logo (&ctx);
 	setup_signal_handlers ();