Set firmware version from git tags

Author: bjsowa

Inc/firmware/configuration.hpp

@@ -10,8 +10,6 @@
 #include "firmware/hal_compat.hpp"
 #include "firmware/motor_controller.hpp"
 
-const char* const FIRMWARE_VERSION = "1.0.2";
-
 // UART used for rosserial communication
 static UART_HandleTypeDef& ROSSERIAL_UART = huart1;
 

firmware_version.py

@@ -0,0 +1,13 @@
+import subprocess
+
+Import("env")
+
+ret = subprocess.run(["git", "describe", "--tags"], stdout=subprocess.PIPE, text=True)
+build_version = ret.stdout.strip()
+build_flag = "-D FIRMWARE_VERSION=\\\"" + build_version + "\\\""
+
+print ("Firmware Revision: " + build_version)
+
+env.Append(
+    BUILD_FLAGS=[build_flag]
+)

platformio.ini

@@ -17,6 +17,8 @@ debug_tool = stlink
 upload_protocol = stlink
 build_flags =
     -D ROS_PLATFORM_STM32CUBE
+extra_scripts = 
+    pre:firmware_version.py
 
 [platformio]
 include_dir = Inc