A super simple XML to JSON file converter

xml2json

#! /usr/bin/env ruby

require 'rubygems'
require 'active_support'
require 'json'
require 'commander/import'

program :name, "xml2json"
program :version, "1.1.0"
program :description, "XML to JSON converter"

default_command :'convert file'

command :'convert file' do |c|
  c.syntax = 'convert file <input> <output>'
  c.description = 'converts specified input XML file into a JSON file at the specified location'
  c.when_called do |args, options|
    if args.length != 2
      puts "Wrong number of arguments. See usage (xml2json -h convert file)"
      exit(1)
    end

    json_str = Hash.from_xml(File.open(args.first).read).to_json
    File.open(args.last, 'w+').write json_str
  end
end

command :in do |c|
  c.syntax = 'in'
  c.description = 'takes an XML string from stdin and puts the converted JSON into stdout'
  c.when_called { |args, options| puts Hash.from_xml($stdin.gets).to_json }
end