Class: Flydata::Cli

Inherits:
Object
  • Object
show all
Includes:
CommandLoggable, Helpers
Defined in:
lib/flydata/cli.rb

Constant Summary

Constants included from Helpers

Helpers::UNIT_PREFIX

Instance Method Summary collapse

Methods included from CommandLoggable

#before_logging, #log_error_stderr, #log_info_stdout, #log_warn_stderr

Methods included from Helpers

as_size, development?, env_mode, env_suffix, flydata_api_host_file, flydata_conf_file, flydata_version, format_menu_list, retry_on, to_command_class, usage_text

Constructor Details

#initialize(args) ⇒ Cli

Returns a new instance of Cli.



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# File 'lib/flydata/cli.rb', line 10

def initialize(args)
  @args = args
  unless $log
    $log = Logger.new(FLYDATA_LOG)
    # 2014-10-24 14:05:21 -0700 command.info: message
    $log.datetime_format = "%Y-%m-%d %H:%M:%S %z "
    $log.formatter = proc do |severity, datetime, progname, msg|
      "#{datetime} command.#{severity.to_s.downcase}: #{msg}\n"
    end
  end
  log_info("Start command.", {cmd: @args.join(' '), ver:flydata_version})
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/flydata/cli.rb', line 23

def run
  unless check_environment
    log_error_stderr("Sorry, you have to run the installation command to use flydata. Please go to https://console.flydata.com/ and sign up.")
    return
  end
  begin
    if @args.size > 0
      first_arg = @args.shift
      cmd, sub_cmd = parse_command(first_arg)
      begin
        require_command_source(cmd)
        cmd_cls = "Flydata::Command::#{cmd.capitalize}".constantize
      rescue NameError 
        # NameError is raised when the constant is not defined in its target
        # file, that is, command not found.
        # Other exceptions mean that some other error happended.
        raise "Command not found: #{cmd}"
      end
      # Command class can define options for each subcommand by defining method "slop_subcommandname"
      slop_method = sub_cmd ? "slop_#{sub_cmd}".to_sym : :slop
      options = cmd_cls.respond_to?(slop_method) ? cmd_cls.send(slop_method) : Slop.new(strict: true)
      options.parse!(@args)
      cmd_obj = cmd_cls.new(options)
      sub_cmd ? cmd_obj.send(sub_cmd,*@args) : cmd_obj.run(*@args)
    else
      $stderr.puts usage_text
      return
    end
  rescue => e
    #raise e
    $stderr.puts
    $stderr.puts
    $stderr.puts "!! #{e.to_s}"
    $stderr.puts
    $stderr.puts e.respond_to?(:description) ? e.description : AgentError.description
    log_error_with_backtrace('Error occured during command.', {error: e, args: @args})
    raise e if FLYDATA_DEBUG
    exit 1
  end
end