3 files changed, 15 insertions, 5 deletions

diff --git a/discover/device-handler.c b/discover/device-handler.c
index 6a27f15..12bd5ae 100644
--- a/discover/device-handler.c
+++ b/discover/device-handler.c
@@ -23,6 +23,7 @@
 
 struct device_handler {
 	struct discover_server *server;
+	int dry_run;
 
 	struct device **devices;
 	unsigned int n_devices;
@@ -407,7 +408,8 @@ int device_handler_event(struct device_handler *handler,
 	return handlers[event->type][event->action](handler, event);
 }
 
-struct device_handler *device_handler_init(struct discover_server *server)
+struct device_handler *device_handler_init(struct discover_server *server,
+		int dry_run)
 {
 	struct device_handler *handler;
 
@@ -415,6 +417,7 @@ struct device_handler *device_handler_init(struct discover_server *server)
 	handler->devices = NULL;
 	handler->n_devices = 0;
 	handler->server = server;
+	handler->dry_run = dry_run;
 
 	list_init(&handler->contexts);
 
@@ -455,5 +458,5 @@ void device_handler_boot(struct device_handler *handler,
 
 	opt = find_boot_option_by_id(handler, cmd->option_id);
 
-	boot(handler, opt, cmd, 0);
+	boot(handler, opt, cmd, handler->dry_run);
 }
diff --git a/discover/device-handler.h b/discover/device-handler.h
index 7207f8d..4cf7d7d 100644
--- a/discover/device-handler.h
+++ b/discover/device-handler.h
@@ -21,7 +21,8 @@ struct discover_context {
 	struct list_item list;
 };
 
-struct device_handler *device_handler_init(struct discover_server *server);
+struct device_handler *device_handler_init(struct discover_server *server,
+		int dry_run);
 
 void device_handler_destroy(struct device_handler *devices);
 
diff --git a/discover/pb-discover.c b/discover/pb-discover.c
index 536f6e6..c83b574 100644
--- a/discover/pb-discover.c
+++ b/discover/pb-discover.c
@@ -43,6 +43,7 @@ struct opts {
 	enum opt_value show_help;
 	const char *log_file;
 	enum opt_value show_version;
+	enum opt_value dry_run;
 };
 
 /**
@@ -54,12 +55,14 @@ static int opts_parse(struct opts *opts, int argc, char *argv[])
 	static const struct option long_options[] = {
 		{"help",           no_argument,       NULL, 'h'},
 		{"log",            required_argument, NULL, 'l'},
+		{"dry-run",        no_argument,       NULL, 'n'},
 		{"version",        no_argument,       NULL, 'V'},
 		{ NULL, 0, NULL, 0},
 	};
-	static const char short_options[] = "hl:V";
+	static const char short_options[] = "hl:nV";
 	static const struct opts default_values = {
 		.log_file = "/var/log/petitboot/pb-discover.log",
+		.dry_run = opt_no,
 	};
 
 	*opts = default_values;
@@ -78,6 +81,9 @@ static int opts_parse(struct opts *opts, int argc, char *argv[])
 		case 'l':
 			opts->log_file = optarg;
 			break;
+		case 'n':
+			opts->dry_run = opt_yes;
+			break;
 		case 'V':
 			opts->show_version = opt_yes;
 			break;
@@ -145,7 +151,7 @@ int main(int argc, char *argv[])
 	if (!server)
 		return EXIT_FAILURE;
 
-	handler = device_handler_init(server);
+	handler = device_handler_init(server, opts.dry_run == opt_yes);
 	if (!handler)
 		return EXIT_FAILURE;