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],
'puppetfile' => %w[install] }.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 36

def initialize(argv)
  Bolt::Logger.initialize_logging
  @logger = Logging.logger[self]
  @argv = argv
  @config = Bolt::Config.default
  @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 34

def config
  @config
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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

def options
  @options
end

Instance Method Details

#bundled_content ⇒ Object 



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# File 'lib/bolt/cli.rb', line 416

def bundled_content
  if %w[plan task].include?(options[:subcommand])
    default_content = Bolt::PAL.new([], nil)
    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
end

#execute(options) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 207

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[:subcommand]}_#{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[:action] == 'show'
    if options[:subcommand] == 'task'
      if options[:object]
        show_task(options[:object])
      else
        list_tasks
      end
    elsif options[:subcommand] == 'plan'
      if options[:object]
        show_plan(options[:object])
      else
        list_plans
      end
    end
    return 0
  end

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

  if %w[task plan].include?(options[:subcommand]) && options[:task_options] && !options[:params_parsed] && pal
    options[:task_options] = pal.parse_params(options[:subcommand], options[:object], options[:task_options])
  end

  if options[:subcommand] == 'plan'
    code = run_plan(options[:object], options[:task_options], options[:nodes], options)
  elsif options[:subcommand] == 'puppetfile'
    code = install_puppetfile(@config.puppetfile, @config.modulepath)
  else
    executor = Bolt::Executor.new(config.concurrency, @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[:subcommand]
        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 408

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

#handle_parser_errors ⇒ Object 



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# File 'lib/bolt/cli.rb', line 187

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

#install_puppetfile(puppetfile, modulepath) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 364

def install_puppetfile(puppetfile, modulepath)
  if puppetfile.exist?
    moduledir = modulepath.first.to_s
    r10k_config = {
      root: puppetfile.dirname.to_s,
      puppetfile: puppetfile.to_s,
      moduledir: moduledir
    }
    install_action = R10K::Action::Puppetfile::Install.new(r10k_config, nil)

    # Override the r10k logger with a proxy to our own logger
    R10K::Logging.instance_variable_set(:@outputter, Bolt::R10KLogProxy.new)

    ok = install_action.call
    outputter.print_puppetfile_result(ok, puppetfile, moduledir)

    ok ? 0 : 1
  else
    raise Bolt::FileError.new("Could not find a Puppetfile at #{puppetfile}", puppetfile)
  end
rescue R10K::Error => e
  raise PuppetfileError, e
end

#list_plans ⇒ Object 



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# File 'lib/bolt/cli.rb', line 332

def list_plans
  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

#list_tasks ⇒ Object 



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# File 'lib/bolt/cli.rb', line 322

def list_tasks
  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

#outputter ⇒ Object 



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# File 'lib/bolt/cli.rb', line 412

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

#pal ⇒ Object 



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# File 'lib/bolt/cli.rb', line 388

def pal
  @pal ||= Bolt::PAL.new(config.modulepath, config.hiera_config, config.compile_concurrency)
end

#parse ⇒ Object 



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# File 'lib/bolt/cli.rb', line 68

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

  # This section handles parsing non-flag options which are
  # subcommand 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)

  @config = if options[:configfile]
              Bolt::Config.from_file(options[:configfile], options)
            else
              boltdir = if options[:boltdir]
                          Bolt::Boltdir.new(options[:boltdir])
                        else
                          Bolt::Boltdir.find_boltdir(Dir.pwd)
                        end
              Bolt::Config.from_boltdir(boltdir, options)
            end

  Bolt::Logger.configure(config.log, config.color)

  # After validation, initialize inventory and targets. Errors here are better to catch early.
  unless options[:subcommand] == 'puppetfile' || 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[:subcommand] == '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 197

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

#query_puppetdb_nodes(query) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 203

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

#run_plan(plan_name, plan_arguments, nodes, options) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 338

def run_plan(plan_name, plan_arguments, nodes, options)
  unless nodes.empty?
    if plan_arguments['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
    plan_arguments['nodes'] = nodes.join(',')
  end

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

  executor = Bolt::Executor.new(config.concurrency, @analytics, options[:noop], bundled_content: bundled_content)
  executor.start_plan(plan_context)
  result = pal.run_plan(plan_name, plan_arguments, 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)
  result.ok? ? 0 : 1
end

#show_plan(plan_name) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 328

def show_plan(plan_name)
  outputter.print_plan_info(pal.get_plan_info(plan_name))
end

#show_task(task_name) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 318

def show_task(task_name)
  outputter.print_task_info(pal.get_task_info(task_name))
end

#validate(options) ⇒ Object 



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# File 'lib/bolt/cli.rb', line 133

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

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

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

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

  if %w[task plan].include?(options[:subcommand]) && options[:action] == 'run'
    if options[:object].nil?
      raise Bolt::CLIError, "Must specify a #{options[:subcommand]} 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[:subcommand]} '#{options[:object]}'"
    end
  end

  if !%w[plan puppetfile].include?(options[:subcommand]) && 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[:boltdir] && options[:configfile]
    raise Bolt::CLIError, "Only one of '--boltdir' or '--configfile' may be specified"
  end

  if options[:noop] && (options[:subcommand] != '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 392

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