Module: Nimbu::Command

Extended by:
Helpers
Defined in:
lib/nimbu/command.rb,
lib/nimbu/command/base.rb

Defined Under Namespace

Classes: Auth, Base, CommandFailed, Help, Init, Server, Themes

Constant Summary collapse

BaseWithApp = 
Base

Class Method Summary collapse

Methods included from Helpers

action, ask, confirm, confirm_billing, confirm_command, create_git_remote, deprecate, disable_error_capture, display, display_header, display_object, display_row, display_table, enable_error_capture, error, error_with_failure, extended, extended_into, fail, format_bytes, format_date, format_with_bang, get_terminal_environment, git, has_git?, home_directory, hprint, hputs, included, included_into, json_decode, json_encode, longest, output, output_with_arrow, output_with_bang, quantify, redisplay, retry_on_exception, run_command, running_on_a_mac?, running_on_windows?, set_buffer, shell, status, string_distance, time_ago, truncate, with_tty

Class Method Details

.command_aliases ⇒ Object 



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# File 'lib/nimbu/command.rb', line 21

def self.command_aliases
  @@command_aliases ||= {}
end

.commands ⇒ Object 



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# File 'lib/nimbu/command.rb', line 17

def self.commands
  @@commands ||= {}
end

.current_args ⇒ Object 



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# File 'lib/nimbu/command.rb', line 41

def self.current_args
  @current_args
end

.current_command ⇒ Object 



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# File 'lib/nimbu/command.rb', line 37

def self.current_command
  @current_command
end

.current_options ⇒ Object 



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# File 'lib/nimbu/command.rb', line 45

def self.current_options
  @current_options
end

.extract_error(body, options = {}) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 167

def self.extract_error(body, options={})
  default_error = block_given? ? yield : "Internal server error.\nRun 'nimbu status' to check for known platform issues."
  parse_error_xml(body) || parse_error_json(body) || parse_error_plain(body) || default_error
end

.global_option(name, *args) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 53

def self.global_option(name, *args)
  global_options << { :name => name, :args => args }
end

.global_options ⇒ Object 



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# File 'lib/nimbu/command.rb', line 49

def self.global_options
  @global_options ||= []
end

.load ⇒ Object 



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# File 'lib/nimbu/command.rb', line 11

def self.load
  Dir[File.join(File.dirname(__FILE__), "command", "*.rb")].each do |file|
    require file
  end
end

.namespaces ⇒ Object 



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# File 'lib/nimbu/command.rb', line 25

def self.namespaces
  @@namespaces ||= {}
end

.parse(cmd) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 163

def self.parse(cmd)
  commands[cmd] || commands[command_aliases[cmd]]
end

.parse_error_json(body) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 179

def self.parse_error_json(body)
  json = json_decode(body.to_s) rescue false
  json ? json['error'] : nil
end

.parse_error_plain(body) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 184

def self.parse_error_plain(body)
  return unless body.respond_to?(:headers) && body.headers[:content_type].to_s.include?("text/plain")
  body.to_s
end

.parse_error_xml(body) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 172

def self.parse_error_xml(body)
  xml_errors = REXML::Document.new(body).elements.to_a("//errors/error")
  msg = xml_errors.map { |a| a.text }.join(" / ")
  return msg unless msg.empty?
rescue Exception
end

.prepare_run(cmd, args = []) ⇒ Object

Raises:

  • (OptionParser::ParseError) 


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# File 'lib/nimbu/command.rb', line 62

def self.prepare_run(cmd, args=[])
  command = parse(cmd)

  unless command
    if %w( -v --version ).include?(cmd)
      display Nimbu::VERSION
      exit
    end

    output_with_bang("`#{cmd}` is not a nimbu command.")

    distances = {}
    (commands.keys + command_aliases.keys).each do |suggestion|
      distance = string_distance(cmd, suggestion)
      distances[distance] ||= []
      distances[distance] << suggestion
    end

    if distances.keys.min < 4
      suggestions = distances[distances.keys.min].sort
      if suggestions.length == 1
        output_with_bang("Perhaps you meant `#{suggestions.first}`.")
      else
        output_with_bang("Perhaps you meant #{suggestions[0...-1].map {|suggestion| "`#{suggestion}`"}.join(', ')} or `#{suggestions.last}`.")
      end
    end

    output_with_bang("See `nimbu help` for additional details.")
    exit(1)
  end

  @current_command = cmd

  opts = {}
  invalid_options = []

  parser = OptionParser.new do |parser|
    global_options.each do |global_option|
      parser.on(*global_option[:args]) do |value|
        opts[global_option[:name]] = value
      end
    end
    command[:options].each do |name, option|
      parser.on("-#{option[:short]}", "--#{option[:long]}", option[:desc]) do |value|
        opts[name.gsub("-", "_").to_sym] = value
      end
    end
  end

  begin
    parser.order!(args) do |nonopt|
      invalid_options << nonopt
    end
  rescue OptionParser::InvalidOption => ex
    invalid_options << ex.args.first
    retry
  end

  raise OptionParser::ParseError if opts[:help]

  args.concat(invalid_options)

  @current_args = args
  @current_options = opts

  [ command[:klass].new(args.dup, opts.dup), command[:method] ]
end

.register_command(command) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 29

def self.register_command(command)
  commands[command[:command]] = command
end

.register_namespace(namespace) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 33

def self.register_namespace(namespace)
  namespaces[namespace[:name]] = namespace
end

.run(cmd, arguments = []) ⇒ Object 



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# File 'lib/nimbu/command.rb', line 130

def self.run(cmd, arguments=[])
  object, method = prepare_run(cmd, arguments.dup)
  object.send(method)
rescue RestClient::Unauthorized
  puts "Authentication failure"
  unless ENV['HEROKU_API_KEY'] 
    run "login"
    retry
  end
rescue RestClient::PaymentRequired => e
  retry if run('account:confirm_billing', arguments.dup)
rescue RestClient::ResourceNotFound => e
  error extract_error(e.http_body) {
    e.http_body =~ /^[\w\s]+ not found$/ ? e.http_body : "Resource not found"
  }
rescue RestClient::Locked => e
  app = e.response.headers[:x_confirmation_required]
  if confirm_command(app, extract_error(e.response.body))
    arguments << '--confirm' << app
    retry
  end
rescue RestClient::RequestFailed => e
  error extract_error(e.http_body)
rescue RestClient::RequestTimeout
  error "API request timed out. Please try again, or contact [email protected] if this issue persists."
rescue CommandFailed => e
  error e.message
rescue OptionParser::ParseError => ex
  commands[cmd] ? run("help", [cmd]) : run("help")
rescue Interrupt => e
  error "\n[exited]"
end