Class: OSDN::CLI::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/osdn/cli/runner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/osdn/cli/runner.rb', line 8

def initialize
  @logger = Logger.new(STDERR)
  @logger.level = Logger::WARN
  @logger.formatter = proc { |severity, time, progname, msg|
    "[%s] %s\n" % [severity, msg]
  }
end

Instance Attribute Details

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/osdn/cli/runner.rb', line 15

def logger
  @logger
end

Instance Method Details

#get_command_class(command_name) ⇒ Object 



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# File 'lib/osdn/cli/runner.rb', line 48

def get_command_class(command_name)
  class_name = command_name.to_s.split('_').map(&:capitalize).join
  begin
    return self.class.const_get("OSDN::CLI::Command::#{class_name}")
  rescue NameError => e
    logger.fatal "Invalid command name '#{command_name}'. Use 'help' to list commands."
    exit
  end
  false
end

#help ⇒ Object 



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# File 'lib/osdn/cli/runner.rb', line 93

def help
  command_name = ARGV.shift
  if command_name
    get_command_class(command_name).new(logger).help
  else
    puts "#{$0} [global-options] <command> [command-options] [args]"
    puts "#{$0} help <command>"
    puts "Global Options:"
    puts "  -h --help      Show help message. use 'help <command>' for specific command. "
    puts "  -v --verbose   Increase log level (multiple)"
    puts "  -q --quiet     Decrease log level (multiple)"
    puts "Avaiable Commands:"
    puts "  help"
    OSDN::CLI::Command.constants.each do |c|
      c = c.to_s.split(/(?=[A-Z])/).join('_').downcase
      c == 'base' and next
      puts "  %-14s %s" % [c, get_command_class(c).description]
    end
  end
end

#parse_opt ⇒ Object 



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# File 'lib/osdn/cli/runner.rb', line 17

def parse_opt
  opts = GetoptLong.new(
    [ '--help', '-h', GetoptLong::NO_ARGUMENT ],
    [ '--verbose', '-v', GetoptLong::NO_ARGUMENT ],
    [ '--quiet', '-q', GetoptLong::NO_ARGUMENT ],
  )
  opts.ordering = GetoptLong::REQUIRE_ORDER
  opts.each do |opt, arg|
    case opt
    when '--help'
      help
      exit 0
    when '--verbose'
      if logger.level == Logger::DEBUG
        OSDNClient.configure do |config|
          config.debugging = true
        end
      end
      logger.level > Logger::DEBUG and
        logger.level -= 1
    when '--quiet'
      logger.level < Logger::UNKNOWN and
        logger.level += 1
    when '--help'
      help
      exit
    end
  end
  logger.debug "Loglevel is #{logger.level}"
end

#run ⇒ Object 



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# File 'lib/osdn/cli/runner.rb', line 59

def run
  parse_opt

  command_name = ARGV.shift
  unless command_name
    help
    exit 1
  end

  if command_name == 'help'
    help
    exit
  end
  
  command = get_command_class(command_name).new(logger)
  logger.debug "Run command #{command_name}"
  begin
    command.run
  rescue OSDNClient::ApiError => e
    begin
      err = JSON.parse(e.response_body)
      if err["message"]
        logger.fatal "#{err["status"]}: #{err["message"]}"
      elsif err["error_description"]
        logger.fatal err["error_description"]
      else
        logger.fatal "Command failed: #{e.inspect}"
      end
    rescue
      logger.fatal "Command failed: #{e.inspect}"
    end
  end
end