def get_all_devices()

in cookbooks/aws-parallelcluster-environment/files/default/ec2_udev_rules/manageVolume.py [0:0]

• 10 lines of code
• 5 McCabe index (conditional complexity)

def get_all_devices():
    # lsblk -d -n
    # xvda 202:0    0  17G  0 disk
    # xvdb 202:16   0  20G  0 disk /shared
    command = ["/bin/lsblk", "-d", "-n"]

    try:
        # fmt: off
        # All commands and arguments in this subprocess call are built as literals.
        output = subprocess.check_output(  # nosec
            command, stderr=subprocess.STDOUT, universal_newlines=True
        ).split("\n")
        # fmt: on
        return [f"/dev/{line.split()[0]}" for line in output if len(line.split()) > 0]
    except subprocess.CalledProcessError as e:
        print("Failed to get devices with lsblk -d -n")
        raise e