fetch_latest

#!/usr/bin/env ruby

def run_git_command(command,capture_ouptut = false)
    full_command = "git #{command}"
    if (capture_ouptut)
        `#{full_command}`
    else
        system(full_command)
    end
end

def get_latest_remote_branch_name(remote_name)
  branch_pattern = /^\d*$/
  branches = run_git_command("fetch #{remote_name}")
  latest_branch = Dir.entries(File.join('.git','refs','remotes',remote_name)).select{|folder| branch_pattern =~ folder}.sort{|first,second| second <=> first}.first
end

def get_all_available_non_origin_remotes
 run_git_command("remote",true).split("\n").select{|remote| /origin/ !~ remote}
end

def choose_remote(remotes)
  remotes.each_with_index do|remote,index|
    puts "#{index + 1} - #{remote}\n"
  end

   "Choose remote:"
  index = gets.chomp.to_i

  index == 0 ? "": remotes[index-1]
end

def update_to_latest_branch_on(remote_name)
  run_git_command("add -A")
  run_git_command('commit -m "Updated"')
  run_git_command("checkout master")
  latest_branch = get_latest_remote_branch_name(remote_name)

  new_branch = "pull_#{remote_name}_#{latest_branch}"
  run_git_command("checkout -b #{new_branch}")
  run_git_command("checkout #{new_branch}")
  run_git_command("pull #{remote_name} #{latest_branch}")
end

remote_name = ARGV.shift
remote_name = choose_remote(get_all_available_non_origin_remotes) if remote_name == nil
update_to_latest_branch_on(remote_name) unless remote_name.empty?