import subprocess

# Import("env")

def get_firmware_specifier_build_flag():    
    #ret = subprocess.run(["git", "describe"], stdout=subprocess.PIPE, text=True) #Uses only annotated tags
    ret = subprocess.run(["git", "describe", "--tags"], stdout=subprocess.PIPE, text=True) #Uses any tags
    build_version = ret.stdout.strip()
    build_flag = "-D AUTO_VERSION=\\\"" + build_version + "\\\""
    print ("Firmware Revision: " + build_version)
    return (build_flag)

#env.Append(
#    BUILD_FLAGS=[get_firmware_specifier_build_flag()]
#)

get_firmware_specifier_build_flag()