Simple ruby script that fetches all github gists that belong to an authenticated user

grab_gists.rb

#!/usr/bin/env ruby

## Grab Gists
## Copyright (c) Abdulrahman Saleh Khamis Alotaiba
## Licensed under BSD
##
## This is a simple ruby script that fetches all github gists
## that belong to the authenticated user, which is defined
## in GITHUB_USER variable, along with its password GITHUB_PASSWORD
##
## To use it, download it, chmod a+x to make it excutable, then run it
## $ ./grab_gists.rb -d <output_directory>
## where <output_directory> is the directory where you want to save
## your gists. The directory will be created if one doesn't exist.

# -- You may begin your editing now! -- #

GITHUB_USER = "<your_username>"
GITHUB_PASSWORD = "<your_password>"

# -- Hold your horses there knight, you reached the final editing line -- #

require 'httparty'
require 'optparse'
require 'fileutils'

VERSION = "0.0.2"

class OptionsParser
    def self.parse(args)
        options = {}

        opts = OptionParser.new do |opts|
            opts.banner = "Usage: grab_gists -d <output_directory>"

            opts.on("-d", "--directory DIRECTORY", "The directory where you will grab all the gists in") do |directory|
                options[:directory] = directory
            end

            opts.on_tail("-h", "--help", "Show this message") do
                puts opts
                exit
            end

            opts.on_tail("--version", "Show version") do
                puts "Copyright (c) Abdulrahman Saleh Khamis Alotaiba"
                puts "Version #{VERSION}"
                exit
            end
        end

        opts.parse!(args)
        options
    end
end

class Github
    include HTTParty
    base_uri 'https://api.github.com'
    basic_auth GITHUB_USER, GITHUB_PASSWORD

    def self.gists
        get('/gists')
    end
end

class Grabber
    attr_accessor :directory
    def initialize(directory)
        self.directory = directory
        Dir.mkdir(self.directory) unless File.directory?(self.directory)
    end

    def gists
        gist_list = []
        Github.gists.map{|gist|
            # Limit to 15 words, replace spaces with dashes, remove non ASCII words
            # puts gist['description'].downcase.strip.split.slice(0, 15).join('-').gsub(/[^\w-]/, '')
            
            git_working_dir = File.join(self.directory, gist['id'])
            if File.directory?(git_working_dir)
                ENV['GIT_DIR'] = File.join(git_working_dir, '.git')
                system("git pull")
                ENV['GIT_DIR'] = nil
            else
                system("git clone #{gist['git_push_url']} #{git_working_dir}")
            end

            json_info_file = File.join(self.directory, "#{gist['id']}.info.json")
            File.open(json_info_file, "w") {|file|
                file.write(gist.to_s)
            }
            gist_list.push(gist['id'])
        }
        Dir.foreach(self.directory) {|x| 
            if not x.eql?"." and not x.eql?".." and not gist_list.any? { |item| x.include? item }
                FileUtils.rm_r File.join(self.directory, x), :force => true, :secure => true
            end
        }
    end

end

options = OptionsParser.parse(ARGV)

raise OptionParser::MissingArgument if options[:directory].nil?

grab_them = Grabber.new(options[:directory])
grab_them.gists