Class: Bolt::CLI

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

Constant Summary collapse

COMMANDS = 
{ 'command' => %w[run],
'script'  => %w[run],
'task'    => %w[show run],
'plan'    => %w[show run],
'file'    => %w[upload] }.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/bolt/cli.rb', line 34

def initialize(argv)
  Bolt::Logger.initialize_logging
  @logger = Logging.logger[self]
  @config = Bolt::Config.new
  @argv = argv
  @options = {
    nodes: []
  }
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/bolt/cli.rb', line 32

def config
  @config
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/bolt/cli.rb', line 32

def options
  @options
end

Instance Method Details

#bundled_content ⇒ Object 



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# File 'lib/bolt/cli.rb', line 357

def bundled_content
  default_content = Bolt::PAL.new(Bolt::Config.new)
  plans = default_content.list_plans.each_with_object([]) do |iter, col|
    col << iter&.first
  end
  tasks = default_content.list_tasks.each_with_object([]) do |iter, col|
    col << iter&.first
  end
  plans.concat tasks
end

#execute(options) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 194

def execute(options)
  message = nil

  handler = Signal.trap :INT do |signo|
    @logger.info(
      "Exiting after receiving SIG#{Signal.signame(signo)} signal.#{message ? ' ' + message : ''}"
    )
    exit!
  end

  @analytics = Bolt::Analytics.build_client

  screen = "#{options[:mode]}_#{options[:action]}"
  # submit a different screen for `bolt task show` and `bolt task show foo`
  if options[:action] == 'show' && options[:object]
    screen += '_object'
  end

  @analytics.screen_view(screen,
                         output_format: config[:format],
                         target_nodes: options.fetch(:targets, []).count,
                         inventory_nodes: inventory.node_names.count,
                         inventory_groups: inventory.group_names.count)

  if options[:mode] == 'plan' || options[:mode] == 'task'
    pal = Bolt::PAL.new(config)
  end

  if options[:action] == 'show'
    if options[:mode] == 'task'
      if options[:object]
        outputter.print_task_info(pal.get_task_info(options[:object]))
      else
        outputter.print_table(pal.list_tasks)
        outputter.print_message("\nUse `bolt task show <task-name>` to view "\
                                "details and parameters for a specific task.")
      end
    elsif options[:mode] == 'plan'
      if options[:object]
        outputter.print_plan_info(pal.get_plan_info(options[:object]))
      else
        outputter.print_table(pal.list_plans)
        outputter.print_message("\nUse `bolt plan show <plan-name>` to view "\
                                "details and parameters for a specific plan.")
      end
    end
    return 0
  end

  message = 'There may be processes left executing on some nodes.'

  if options[:task_options] && !options[:params_parsed] && pal
    options[:task_options] = pal.parse_params(options[:mode], options[:object], options[:task_options])
  end

  if options[:mode] == 'plan'
    unless options[:nodes].empty?
      if options[:task_options]['nodes']
        raise Bolt::CLIError,
              "A plan's 'nodes' parameter may be specified using the --nodes option, but in that " \
              "case it must not be specified as a separate nodes=<value> parameter nor included " \
              "in the JSON data passed in the --params option"
      end
      options[:task_options]['nodes'] = options[:nodes].join(',')
    end

    params = options[:noop] ? options[:task_options].merge("_noop" => true) : options[:task_options]
    plan_context = { plan_name: options[:object],
                     params: params }
    plan_context[:description] = options[:description] if options[:description]

    executor = Bolt::Executor.new(config, @analytics, options[:noop], bundled_content: bundled_content)
    executor.start_plan(plan_context)
    result = pal.run_plan(options[:object], options[:task_options], executor, inventory, puppetdb_client)

    # If a non-bolt exeception bubbles up the plan won't get finished
    executor.finish_plan(result)
    outputter.print_plan_result(result)
    code = result.ok? ? 0 : 1
  else
    executor = Bolt::Executor.new(config, @analytics, options[:noop], bundled_content: bundled_content)
    targets = options[:targets]

    results = nil
    outputter.print_head

    elapsed_time = Benchmark.realtime do
      executor_opts = {}
      executor_opts['_description'] = options[:description] if options.key?(:description)
      results =
        case options[:mode]
        when 'command'
          executor.run_command(targets, options[:object], executor_opts) do |event|
            outputter.print_event(event)
          end
        when 'script'
          script = options[:object]
          validate_file('script', script)
          executor.run_script(
            targets, script, options[:leftovers], executor_opts
          ) do |event|
            outputter.print_event(event)
          end
        when 'task'
          pal.run_task(options[:object],
                       targets,
                       options[:task_options],
                       executor,
                       inventory,
                       options[:description]) do |event|
            outputter.print_event(event)
          end
        when 'file'
          src = options[:object]
          dest = options[:leftovers].first

          if dest.nil?
            raise Bolt::CLIError, "A destination path must be specified"
          end
          validate_file('source file', src)
          executor.file_upload(targets, src, dest, executor_opts) do |event|
            outputter.print_event(event)
          end
        end
    end

    outputter.print_summary(results, elapsed_time)
    code = results.ok ? 0 : 2
  end
  code
rescue Bolt::Error => e
  outputter.fatal_error(e)
  raise e
ensure
  # restore original signal handler
  Signal.trap :INT, handler if handler
  @analytics&.finish
end

#file_stat(path) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 349

def file_stat(path)
  File.stat(path)
end

#handle_parser_errors ⇒ Object 



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# File 'lib/bolt/cli.rb', line 172

def handle_parser_errors
  yield
rescue OptionParser::MissingArgument => e
  raise Bolt::CLIError, "Option '#{e.args.first}' needs a parameter"
rescue OptionParser::InvalidArgument => e
  raise Bolt::CLIError, "Invalid parameter specified for option '#{e.args.first}': #{e.args[1]}"
rescue OptionParser::InvalidOption, OptionParser::AmbiguousOption => e
  raise Bolt::CLIError, "Unknown argument '#{e.args.first}'"
end

#outputter ⇒ Object 



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# File 'lib/bolt/cli.rb', line 353

def outputter
  @outputter ||= Bolt::Outputter.for_format(config[:format], config[:color], config[:trace])
end

#parse ⇒ Object 



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# File 'lib/bolt/cli.rb', line 66

def parse
  parser = BoltOptionParser.new(options)

  # This part aims to handle both `bolt <mode> --help` and `bolt help <mode>`.
  remaining = handle_parser_errors { parser.permute(@argv) } unless @argv.empty?
  if @argv.empty? || help?(parser, remaining)
    puts parser.help
    raise Bolt::CLIExit
  end

  config.update(options)
  config.validate
  Bolt::Logger.configure(config)

  # This section handles parsing non-flag options which are
  # mode specific rather then part of the config
  options[:action] = remaining.shift
  options[:object] = remaining.shift

  task_options, remaining = remaining.partition { |s| s =~ /.+=/ }
  if options[:task_options]
    unless task_options.empty?
      raise Bolt::CLIError,
            "Parameters must be specified through either the --params " \
            "option or param=value pairs, not both"
    end
    options[:params_parsed] = true
  else
    options[:params_parsed] = false
    options[:task_options] = Hash[task_options.map { |a| a.split('=', 2) }]
  end

  options[:leftovers] = remaining

  validate(options)

  # After validation, initialize inventory and targets. Errors here are better to catch early.
  unless options[:action] == 'show'
    if options[:query]
      if options[:nodes].any?
        raise Bolt::CLIError, "Only one of '--nodes' or '--query' may be specified"
      end
      nodes = query_puppetdb_nodes(options[:query])
      options[:targets] = inventory.get_targets(nodes)
      options[:nodes] = nodes if options[:mode] == 'plan'
    else
      options[:targets] = inventory.get_targets(options[:nodes])
    end
  end

  options
rescue Bolt::Error => e
  warn e.message
  raise e
end

#puppetdb_client ⇒ Object 



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# File 'lib/bolt/cli.rb', line 182

def puppetdb_client
  return @puppetdb_client if @puppetdb_client
  @puppetdb_client = Bolt::Util::OnAccess.new do
    puppetdb_config = Bolt::PuppetDB::Config.new(nil, config.puppetdb)
    Bolt::PuppetDB::Client.from_config(puppetdb_config)
  end
end

#query_puppetdb_nodes(query) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 190

def query_puppetdb_nodes(query)
  puppetdb_client.query_certnames(query)
end

#validate(options) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 122

def validate(options)
  unless COMMANDS.include?(options[:mode])
    raise Bolt::CLIError,
          "Expected subcommand '#{options[:mode]}' to be one of " \
          "#{COMMANDS.keys.join(', ')}"
  end

  if options[:action].nil?
    raise Bolt::CLIError,
          "Expected an action of the form 'bolt #{options[:mode]} <action>'"
  end

  actions = COMMANDS[options[:mode]]
  unless actions.include?(options[:action])
    raise Bolt::CLIError,
          "Expected action '#{options[:action]}' to be one of " \
          "#{actions.join(', ')}"
  end

  if options[:mode] != 'file' && options[:mode] != 'script' &&
     !options[:leftovers].empty?
    raise Bolt::CLIError,
          "Unknown argument(s) #{options[:leftovers].join(', ')}"
  end

  if %w[task plan].include?(options[:mode]) && options[:action] == 'run'
    if options[:object].nil?
      raise Bolt::CLIError, "Must specify a #{options[:mode]} to run"
    end
    # This may mean that we parsed a parameter as the object
    unless options[:object] =~ /\A([a-z][a-z0-9_]*)?(::[a-z][a-z0-9_]*)*\Z/
      raise Bolt::CLIError,
            "Invalid #{options[:mode]} '#{options[:object]}'"
    end
  end

  if options[:mode] != 'plan' && options[:action] != 'show'
    if options[:nodes].empty? && options[:query].nil?
      raise Bolt::CLIError, "Targets must be specified with '--nodes' or '--query'"
    elsif options[:nodes].any? && options[:query]
      raise Bolt::CLIError, "Only one of '--nodes' or '--query' may be specified"
    end
  end

  if options[:noop] && (options[:mode] != 'task' || options[:action] != 'run')
    raise Bolt::CLIError,
          "Option '--noop' may only be specified when running a task"
  end
end

#validate_file(type, path) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 333

def validate_file(type, path)
  if path.nil?
    raise Bolt::CLIError, "A #{type} must be specified"
  end

  stat = file_stat(path)

  if !stat.readable?
    raise Bolt::FileError.new("The #{type} '#{path}' is unreadable", path)
  elsif !stat.file?
    raise Bolt::FileError.new("The #{type} '#{path}' is not a file", path)
  end
rescue Errno::ENOENT
  raise Bolt::FileError.new("The #{type} '#{path}' does not exist", path)
end