lpx_links.rb

#!/usr/bin/env ruby

require "json"
require "fileutils"
require "pathname"
require "uri"
require "optparse"
require_relative "lib/file_helpers"

# read the plist, create a json & parse a list of links
module LpxLinks
  module_function
  $app_name = "LOGIC" # default application name to read a list of packages from

  OptionParser.new do |opts|
    opts.on("-nAPP_NAME", "--name=APP_NAME", "[ Logic | Mainstage ] Default is Logic") do |n|
      if (n.upcase! == "LOGIC" || n == "MAINSTAGE")
        $app_name = n
      else 
        print "Application name can only be Logic or Mainstage\n"
        puts opts
        exit
      end
    end
    opts.on("-h", "--help", "Prints this help") do
      puts opts
      exit
    end
  end.parse!

def run
  begin
    create_dirs
    convert_plist_to_json
    print_file(FileHelpers.all_download_links, download_links)
    print_file(FileHelpers.mandatory_download_links, download_links(true))
    print_file(FileHelpers.json_file, JSON.pretty_generate(packages))
    open_lpx_download_links
  rescue RuntimeError => e
    puts "Error: #{e.message}"
    puts "Please ensure that #{$app_name} is installed correctly on your system."
    exit 1
  end
end

  def open_lpx_download_links
    `open #{FileHelpers.links_dir}`
  end

  def create_dirs
    FileUtils.mkdir_p(FileHelpers.links_dir)
    FileUtils.mkdir_p(FileHelpers.json_dir)
  end

  def convert_plist_to_json
    `plutil -convert json \'#{FileHelpers.plist_file_path($app_name)}\' -o /tmp/lgp_content.json`
  end

  def packages
    @packages ||= read_packages
  end

  def read_packages
    JSON.parse(File.read("/tmp/lgp_content.json"))["Packages"]
  end

  def download_links(only_mandatory = false)
    links = []
    packages.each do |i|
      next if only_mandatory && !i[1]["IsMandatory"]

      # Use File.join to concatenate URL and remove redundant separators (i.e. //)
      unresolved_download_url = File.join(FileHelpers.url, i[1]["DownloadName"])

      # Convert to URI
      download_uri = URI(unresolved_download_url)

      # Extract path
      unresolved_download_uri_path = download_uri.path

      # Resolve "../../" relative paths in the download URI path
      resolved_download_uri_path = Pathname.new(unresolved_download_uri_path).cleanpath.to_s

      # Set download URI path to the resolved path
      download_uri.path = resolved_download_uri_path

      # Convert download URI to URL string
      resolved_download_url = download_uri.to_s

      # Add the resolved download URL to the array
      links << "#{resolved_download_url}\n"
    end
    links.sort
  end

  def print_file(file, content)
    f = File.open(file, "w")
    f.puts content
    f.close
  end
end

LpxLinks.run if $PROGRAM_NAME == __FILE__