Shell update command: Take file name as argument

stm-firmware/shell.c

@@ -632,8 +632,30 @@ shellmatta_retCode_t shell_cmd_update(const shellmatta_handle_t handle, const ch
 	(void)handle;
 	(void)arguments;
 	(void)length;
+	shellmatta_retCode_t opt_stat;
+	char option;
+	char *argument;
+	uint32_t arg_len;
+	const char *update_file = NULL;
 
-	updater_update_from_file("update.hex");
+	const shellmatta_opt_long_t options[] = {
+		{NULL, '\0', SHELLMATTA_OPT_ARG_NONE},
+	};
+
+	while (1) {
+		opt_stat = shellmatta_opt_long(handle, options, &option, &argument, &arg_len);
+		if (opt_stat != SHELLMATTA_OK)
+			break;
+		switch (option) {
+		case '\0':
+			update_file = argument;
+			break;
+		default:
+			break;
+		}
+	}
+
+	updater_update_from_file(update_file);
 
 	return SHELLMATTA_OK;
 }
@@ -872,7 +894,7 @@ static shellmatta_cmd_t cmd[21] = {
 	{
 		.cmd = "save-calibration",
 		.cmdAlias = "save-cal",
-		.helpText = "",
+		.helpText = "Permanently save the calibration to EEPROM",
 		.usageText = "",
 		.cmdFct = shell_cmd_save_cal,
 		.next = &cmd[13],
@@ -920,8 +942,8 @@ static shellmatta_cmd_t cmd[21] = {
 	{
 		.cmd = "update",
 		.cmdAlias = NULL,
-		.helpText = "Update Firmware. The updater searches for a file called update.hex",
-		.usageText = "update",
+		.helpText = "Update Firmware from HEX file",
+		.usageText = "update </path/to/update.hex>",
 		.cmdFct = shell_cmd_update,
 		.next = &cmd[19],