setup.sh

#!/usr/bin/env sh
#|-----------------------------------------------------------------------------------------------------------------|
#| Program Name: setup.sh
#|-----------------------------------------------------------------------------------------------------------------|
#| Description: This script does the initial setup for the `remove_podcasts.sh` script for its further use
#|-----------------------------------------------------------------------------------------------------------------|
#| Description: This script does the initial setup for the `remove_podcasts.sh` script for its further use
#|        1) This script moves `remove_podcasts.sh` to `/usr/local/bin` folder by default
#|		      a) Moves to custom folder if it was provided
#|         	b) Fix $PATH if custom folder is provided
#|        2) Gives `remove_podcasts.sh` name without file extension
#|
#| Note:
#|        a) This script takes params in UNIX-style where and how to setup script
#|
#|-----------------------------------------------------------------------------------------------------------------|
#| Author: unurgunite
#| Date: 2022/27/02
#|-----------------------------------------------------------------------------------------------------------------|
#| License: MIT
#|-----------------------------------------------------------------------------------------------------------------|

Default_Path='/usr/local/bin'
Spotify_Script='remove_podcasts.sh'
New_Default_Name=$(echo "$Spotify_Script" | cut -f 1 -d '.')
License_File='./LICENSE.txt'
GitHub_Repo='https://github.com/unurgunite/epeisodion'

#-------------------- Define `help` function -----------------------------------------------------#
help() {
  echo "$0 - the initial setup for the \`remove_podcasts.sh\` script for its further use"
  echo "Usage: sh $0 [-p path] [-n name] [-h help] [-l license]"
  echo '  -p path         Provide custom path'
  echo '  -n name         Specify custom name for script to store'
  echo '  -a auto setup   Automatically edit your PATH variable and shell rc files'
  echo '  -h help         Display help'
  echo '  -l license      Display license'
  return 0
}

#-------------------- Check for SPOTIFY SCRIPT ----------------------------------------------------#
script_exists() {
  if [ ! -s ${Spotify_Script} ]; then
    echo "ERROR: Could not find script: ${Spotify_Script}"
    echo 'Exiting with Status Code of 10'
    exit 10
  else
    return 0
  fi
}

#-------------------- Move SPOTIFY SCRIPT ---------------------------------------------------------#
move_script() {
  if script_exists; then
    if [ $# -eq 0 ]; then
      echo 'No arguments provided. Using standard options...'
      echo "$Spotify_Script $Default_Path/$New_Default_Name"
      cp $Spotify_Script "$Default_Path/$New_Default_Name"
      if [ -f "$Default_Path/$New_Default_Name" ]; then
        echo "File has been successfully moved to the $Default_Path folder. Now you can type just $New_Default_Name."
      else
        echo "Can't move file... Exiting with status code 20"
        return 20
      fi
    else
      cp $Spotify_Script "$1"
      if [ -f "$Spotify_Script/$1" ]; then
        echo 'export PATH=$PATH:$1'
      else
        echo "Can't move file... Exiting with status code 20"
        return 20
      fi
    fi
  fi
  return 0
}

#-------------------- Show LICENSE.txt file -------------------------------------------------------#
show_license() {
  cat <<LICENSE
  MIT License
  
  Copyright (c) 2022 unurgunite
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
LICENSE
}

#-------------------- Get parameters --------------------------------------------------------------#
if [ $# -eq 0 ]; then
  move_script
fi

optstring=":hp:n:l"
while getopts ${optstring} opt; do
  case ${opt} in
  h)
    help
    ;;
  p)
    Mv_Path=$OPTARG
    move_script "$Mv_Path"
    ;;
  n)
    Filename=$OPTARG
    move_script "$Filename"
    ;;
  l)
    show_license
    ;;
  *)
    echo "Unknown parameter -- ${OPTARG}"
    echo ""
    help
    ;;
  esac
done