Sample for ps_getopt.sh: Powershell-flavored command line argument parser

ps_getopt_sample.sh

#!/bin/bash
#
# Powershell-flavored command line argument parser example.
#
# Requires: ps_getopt.sh <https://gist.github.com/gocha/9b12fa0b7b5d18ae56e0452cec749e87>
# License: Unlicensed

. ps_getopt.sh

ALL_PARAMS=("Path" "Nullable" "Optional" "Force")
ORDINAL_PARAMS=("Path" "Nullable" "Optional")
MANDATORY_PARAMS=("Path" "Nullable")
EMPTY_ALLOWED_PARAMS=("Nullable")
SWITCH_TYPE_PARAMS=("Force")

main() {
  if [[ "$1" == "--help" ]]; then
    help
    return 1
  fi

  ps_getopt ALL_PARAMS[@] ORDINAL_PARAMS[@] MANDATORY_PARAMS[@] EMPTY_ALLOWED_PARAMS[@] SWITCH_TYPE_PARAMS[@] "$@" || return 1

  # Show given parameters.
  echo "Parameters"
  echo "----------"
  echo
  for name in "${!params[@]}"; do
    echo "${name}: ${params[${name}]}"
  done

  # Example branch for a switch parameter.
  if [[ ! -z ${params["Force"]} ]]; then
    echo
    echo "Force is with you."
  fi

  return 0
}

help() {
  echo "Show help page."
}

main "$@"