Argument parsing util

Common args used for the scripts.

connection_parser(description)

Return an argument parser with support for host, port and timeout arguments.

The address is specified by either

• the PASD_ADDRESS environment variable; for example

  > PASD_ADDRESS=127.0.0.1:5000
  > get-fncc-fw-version
  953
  

• command line arguments for host (-H / –host) and port (-P / –port); for example:

  > get-fncc-fw-version --host 127.0.0.1 --port 5000
  953
  

If both are provided, the latter takes precedence.

Parameters:

description (str) – the description of what the script does.

Return type:

ArgumentParser

Returns:

an argparse ArgumentParser with host, port and timeout arguments already set up.