Screening Script

pre_screen.rb

#!/usr/bin/ruby

##################
# Copy files
##################
require 'fileutils'

###################
# To Generate UUID
###################
require "securerandom"

class FileConf
  class << self
    ###################
    # Method to create working dir
    ###################
    def setup_dir
      begin
        if File.directory?("test_dir")
          puts "Dir already exists"
        else
          Dir.mkdir('test_dir')
        end
      end
    end

    def json_template(id)
      ###################
      # Method to create the json templates
      ###################
      File.open("test_dir/temp_#{id}.json", 'w'){|i|
        templ = %Q<{
  "id": "#{Random.rand(20)}#{Random.rand(20)}",
  "version": 1.0.1.1,
  "service": "ftp",
  "os": "linux"
}
    >
        i.write(templ)
      }
    end

    def copy_json
      ##################
      # Method that will copy from test_dir to uuid
      ##################
      if File.directory?("uuid_")
        puts "uuid exists"
      else
        Dir.mkdir("uuid_")
        build_files = Dir.glob("test_dir/**")
        build_files.each{|file|
          FileUtils.copy(file,"uuid_/")
        }
      end
    end

    def rename_json
      ##################
      # Method that will rename the templates to UUID
      ##################
      uuid_files = Dir.glob("uuid_/**")
      uuid_files.each{|file|
        File.rename(file,"uuid_/#{SecureRandom.uuid}.json")
      }
    end

    def set_value(file)
      #################
      # Setting Value to be incremented by +1
      #################
      File.foreach(file) do |f|
        if f =~ /version/
          reg = f
          build_no = f.chomp(',').split('.')[3].to_i + 1
          yield reg, build_no
        end
      end
    end

    def change_build
      ################
      # Changing the build number
      ################
      uuid_file = Dir.glob("uuid_/**")
      uuid_file.each{|file|
        set_value(file){|reg,build_no|
          spec = File.open(file, "r+")
          e = spec.read()
          spec.close
          e.gsub!(/#{reg}/, %{  "version": 1.0.1.#{build_no},\n})
          File.open(file, "r+") { |f| f << e }
        }
      }

    end
  end

end


FileConf.setup_dir
(1..50).each{|i|
  FileConf.json_template(i)
}
################
FileConf.copy_json
FileConf.rename_json
FileConf.change_build