Class: Dreamback::Initializer

Inherits:
Object
  • Object
show all
Defined in:
lib/dreamback/initializer.rb

Constant Summary collapse

SETTINGS_LOCATION = 
File.expand_path("~/.dreamback")
DEFAULT_SETTINGS = 
{
  :backup_server => "",
  :backup_server_user => "",
  :dreamhost_users => [ {:user => "", :server => ""} ]
}

Class Method Summary collapse

Class Method Details

.setup(direct = false) ⇒ Object

Walks a user through the initial setup process



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# File 'lib/dreamback/initializer.rb', line 29

def self.setup(direct = false)
  # Check to see if settings exist
  load_settings(SETTINGS_LOCATION)

  # Ask user questions if no settings file
  if @settings.nil? || @settings.empty?
    create_new_settings
    save_settings(SETTINGS_LOCATION)
  else
    if direct
      say(bold("You have already setup Dreamback."))

      choose("From here you can:  \n") do |menu|
        menu.prompt = "Select an option:  "

        menu.choice("Run setup again") {
          create_new_settings
          save_settings(SETTINGS_LOCATION)
        }

        menu.choice("Run a backup right now") {
          Dreamback::Backup.start
        }
      end
    end
  end

  # Create ssh keys if they don't exist
  ssh_keys_exist = File.exists?(File.expand_path("~/.ssh/id_dsa"))
  create_ssh_keys unless ssh_keys_exist

  # Copy ssh keys to backup server
  unless @settings[:copied_backup_server_ssh_keys]
    say(bold("Copying the ssh key to your backup server, type in your password if prompted for #{@settings[:backup_server_user]}@#{@settings[:backup_server]}"))
    overwrite_keys = agree(bold("WARNING: ") + "This will overwrite existing ssh keys on your backup user account. Proceed? [y/n]: ")
    if overwrite_keys
      sftp_password = ask("Password for #{@settings[:backup_server_user]}@#{@settings[:backup_server]}: ") { |q| q.echo = "*" }
      sftp_ssh_key_upload(sftp_password)
    else
      say("You will need to add the ssh key yourself to automate backups")
    end
    @settings[:copied_backup_server_ssh_keys] = true
  end

  # Copy ssh keys to dreamhost servers
  unless @settings[:copied_dreamhost_users_ssh_keys]
    say(bold("Copying the ssh key to the dreamhost accounts you want to back up"))
    @settings[:dreamhost_users].each do |dreamhost|
      say(bold("Type in password if prompted for #{dreamhost[:user]}@#{dreamhost[:server]}"))
      `ssh-copy-id -i #{dreamhost[:user]}@#{dreamhost[:server]}`
    end
    @settings[:copied_dreamhost_users_ssh_keys] = true
  end

  # Setup a cron job if the user would like to
  unless @settings[:cron_setup_completed]
    setup_cron = agree(bold("Would you like to add a cron job to automatically run the backup? [y/n]: "))
    if setup_cron
      crontab_email = ask("Dreamhost requires an email address to send crontab output to, please provide one: ") { |q| q.validate = /\b[A-Za-z0-9._%-\+]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}\b/ }

      # Set environment if these paths exist
      gems = File.expand_path("/etc/profile")
      if File.exists?(gems)
        cron_profile = ". /etc/profile &&"
      end

      ct = File.open(File.expand_path("~/.dreamback_crontab"), "w+")
      ct << "MAILTO=#{crontab_email}\n"
      ct << "0 1 * * * #{cron_profile} dreamback backup"
      ct.close
      `crontab #{ct.path}`
      File.delete(ct.path)
      say("Cron job added. Backups will run at 1:00am Pacific every day.")
    end
    @settings[:cron_setup_completed] = true
  end

  save_settings(SETTINGS_LOCATION)

  # Set global settings
  Dreamback.settings = @settings
end