Class: Bolt::PAL

Inherits:
Object
  • Object
show all
Defined in:
lib/bolt/pal.rb,
lib/bolt/pal/issues.rb,
lib/bolt/pal/yaml_plan.rb,
lib/bolt/pal/yaml_plan/step.rb,
lib/bolt/pal/yaml_plan/loader.rb,
lib/bolt/pal/yaml_plan/evaluator.rb,
lib/bolt/pal/yaml_plan/parameter.rb,
lib/bolt/pal/yaml_plan/step/eval.rb,
lib/bolt/pal/yaml_plan/step/plan.rb,
lib/bolt/pal/yaml_plan/step/task.rb,
lib/bolt/pal/yaml_plan/transpiler.rb,
lib/bolt/pal/yaml_plan/step/script.rb,
lib/bolt/pal/yaml_plan/step/upload.rb,
lib/bolt/pal/yaml_plan/step/command.rb,
lib/bolt/pal/yaml_plan/step/message.rb,
lib/bolt/pal/yaml_plan/step/download.rb,
lib/bolt/pal/yaml_plan/step/resources.rb

Defined Under Namespace

Modules: Issues Classes: PALError, YamlPlan

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(modulepath, hiera_config, resource_types, max_compiles = Etc.nprocessors, trusted_external = nil, apply_settings = {}, project = nil) ⇒ PAL

Returns a new instance of PAL.



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# File 'lib/bolt/pal.rb', line 47

def initialize(modulepath, hiera_config, resource_types, max_compiles = Etc.nprocessors,
               trusted_external = nil, apply_settings = {}, project = nil)
  unless modulepath.is_a?(Bolt::Config::Modulepath)
    msg = "Type error in PAL: modulepath must be a Bolt::Config::Modulepath"
    raise Bolt::Error.new(msg, "bolt/execution-error")
  end
  # Nothing works without initialized this global state. Reinitializing
  # is safe and in practice only happens in tests
  self.class.load_puppet
  @modulepath = modulepath
  @hiera_config = hiera_config
  @trusted_external = trusted_external
  @apply_settings = apply_settings
  @max_compiles = max_compiles
  @resource_types = resource_types
  @project = project

  @logger = Bolt::Logger.logger(self)
  unless user_modulepath.empty?
    @logger.debug("Loading modules from #{full_modulepath.join(File::PATH_SEPARATOR)}")
  end

  @loaded = false
end

Class Method Details

.configure_logging ⇒ Object

Puppet logging is global so this is class method to avoid confusion



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# File 'lib/bolt/pal.rb', line 81

def self.configure_logging
  Puppet::Util::Log.destinations.clear
  Puppet::Util::Log.newdestination(Bolt::Logger.logger('Puppet'))
  # Defer all log level decisions to the Logging library by telling Puppet
  # to log everything
  Puppet.settings[:log_level] = 'debug'
end

.load_puppet ⇒ Object 



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# File 'lib/bolt/pal.rb', line 89

def self.load_puppet
  if Bolt::Util.windows?
    # Windows 'fix' for openssl behaving strangely. Prevents very slow operation
    # of random_bytes later when establishing winrm connections from a Windows host.
    # See https://github.com/rails/rails/issues/25805 for background.
    require 'openssl'
    OpenSSL::Random.random_bytes(1)
  end

  begin
    require 'puppet_pal'
  rescue LoadError
    raise Bolt::Error.new("Puppet must be installed to execute tasks", "bolt/puppet-missing")
  end

  require 'bolt/pal/logging'
  require 'bolt/pal/issues'
  require 'bolt/pal/yaml_plan/loader'
  require 'bolt/pal/yaml_plan/transpiler'

  # Now that puppet is loaded we can include puppet mixins in data types
  Bolt::ResultSet.include_iterable
end

Instance Method Details

#alias_types(compiler) ⇒ Object

Create a top-level alias for TargetSpec and PlanResult so that users don’t have to namespace it with Boltlib, which is just an implementation detail. This allows them to feel like a built-in type in bolt, rather than something has been, no pun intended, “bolted on”.



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# File 'lib/bolt/pal.rb', line 128

def alias_types(compiler)
  compiler.evaluate_string('type TargetSpec = Boltlib::TargetSpec')
  compiler.evaluate_string('type PlanResult = Boltlib::PlanResult')
end

#cache_plan_info ⇒ Object 



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# File 'lib/bolt/pal.rb', line 592

def cache_plan_info
  # plan_name is an array here
  plans_info = list_plans(filter_content: false).map do |plan_name,|
    data = get_plan_info(plan_name, with_mtime: true)
    { plan_name => data }
  end.reduce({}, :merge)

  FileUtils.touch(@project.plan_cache_file)
  File.write(@project.plan_cache_file, plans_info.to_json)
end

#convert_plan(plan) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 524

def convert_plan(plan)
  path = File.expand_path(plan)

  # If the path doesn't exist, check if it's a plan name
  unless File.exist?(path)
    in_bolt_compiler do |compiler|
      sig = compiler.plan_signature(plan)

      # If the plan was loaded, look for it on the module loader
      # There has to be an easier way to do this...
      if sig
        type = compiler.list_plans.find { |p| p.name == plan }
        path = sig.instance_variable_get(:@plan_func)
                  .loader
                  .find(type)
                  .origin
                  .first
      end
    end
  end

  Puppet[:tasks] = true
  transpiler = YamlPlan::Transpiler.new
  transpiler.transpile(path)
end

#detect_project_conflict(project, environment) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 148

def detect_project_conflict(project, environment)
  return unless project && project.load_as_module?
  # The environment modulepath has stripped out non-existent directories,
  # so we don't need to check for them
  modules = environment.modulepath.flat_map do |path|
    Dir.children(path).select { |name| Puppet::Module.is_module_directory?(name, path) }
  end
  if modules.include?(project.name)
    Bolt::Logger.warn_once(
      "project_shadows_module",
      "The project '#{project.name}' shadows an existing module of the same name"
    )
  end
end

#filter_content(content, patterns) ⇒ Object

Filters content by a list of names and glob patterns specified in project configuration.



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# File 'lib/bolt/pal.rb', line 294

def filter_content(content, patterns)
  return content unless content && patterns

  content.select do |name,|
    patterns.any? { |pattern| File.fnmatch?(pattern, name, File::FNM_EXTGLOB) }
  end
end

#full_modulepath ⇒ Object 



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# File 'lib/bolt/pal.rb', line 72

def full_modulepath
  @modulepath.full_modulepath
end

#generate_types(cache: false) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 581

def generate_types(cache: false)
  require 'puppet/face/generate'
  in_bolt_compiler do
    generator = Puppet::Generate::Type
    inputs = generator.find_inputs(:pcore)
    FileUtils.mkdir_p(@resource_types)
    cache_plan_info if @project && cache
    generator.generate(inputs, @resource_types, true)
  end
end

#get_plan_info(plan_name, with_mtime: false) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 408

def get_plan_info(plan_name, with_mtime: false)
  plan_sig = in_bolt_compiler do |compiler|
    compiler.plan_signature(plan_name)
  end

  if plan_sig.nil?
    raise Bolt::Error.unknown_plan(plan_name)
  end

  # path may be a Pathname object, so make sure to stringify it
  mod = plan_sig.instance_variable_get(:@plan_func).loader.parent.path.to_s

  # If it's a Puppet language plan, use strings to extract data. The only
  # way to tell is to check which filename exists in the module.
  plan_subpath = File.join(plan_name.split('::').drop(1))
  plan_subpath = 'init' if plan_subpath.empty?

  pp_path = File.join(mod, 'plans', "#{plan_subpath}.pp")
  if File.exist?(pp_path)
    require 'puppet-strings'
    require 'puppet-strings/yard'
    PuppetStrings::Yard.setup!
    YARD::Logger.instance.level = :error
    YARD.parse(pp_path)

    plan = YARD::Registry.at("puppet_plans::#{plan_name}")

    description = if plan.tag(:summary)
                    plan.tag(:summary).text
                  elsif !plan.docstring.empty?
                    plan.docstring
                  end

    defaults = plan.parameters.to_h.compact
    signature_params = Set.new(plan.parameters.map(&:first))
    parameters = plan.tags(:param).each_with_object({}) do |param, params|
      name = param.name
      if signature_params.include?(name)
        params[name] = { 'type' => param.types.first }
        params[name]['sensitive'] = param.types.first =~ /\ASensitive(\[.*\])?\z/ ? true : false
        params[name]['default_value'] = defaults[name] if defaults.key?(name)
        params[name]['description'] = param.text if param.text && !param.text.empty?
      else
        Bolt::Logger.warn(
          "missing_plan_parameter",
          "The documented parameter '#{name}' does not exist in signature for plan '#{plan.name}'"
        )
      end
    end

    privie = plan.tag(:private)&.text
    unless privie.nil? || %w[true false].include?(privie.downcase)
      msg = "Plan #{plan_name} key 'private' must be a boolean, received: #{privie}"
      raise Bolt::Error.new(msg, 'bolt/invalid-plan')
    end

    pp_info = {
      'name'        => plan_name,
      'description' => description,
      'parameters'  => parameters,
      'module'      => mod
    }
    pp_info.merge!({ 'private' => privie&.downcase == 'true' }) unless privie.nil?
    pp_info.merge!(get_plan_mtime(plan.file)) if with_mtime
    pp_info

  # If it's a YAML plan, fall back to limited data
  else
    yaml_path = File.join(mod, 'plans', "#{plan_subpath}.yaml")
    plan_content = File.read(yaml_path)
    plan = Bolt::PAL::YamlPlan::Loader.from_string(plan_name, plan_content, yaml_path)

    parameters = plan.parameters.each_with_object({}) do |param, params|
      name = param.name
      type_str = case param.type_expr
                 when Puppet::Pops::Types::PTypeReferenceType
                   param.type_expr.type_string
                 when nil
                   'Any'
                 else
                   param.type_expr
                 end
      params[name] = { 'type' => type_str }
      params[name]['sensitive'] = param.type_expr.instance_of?(Puppet::Pops::Types::PSensitiveType)
      params[name]['default_value'] = param.value unless param.value.nil?
      params[name]['description'] = param.description if param.description
    end

    yaml_info = {
      'name'        => plan_name,
      'description' => plan.description,
      'parameters'  => parameters,
      'module'      => mod
    }
    yaml_info.merge!({ 'private' => plan.private }) unless plan.private.nil?
    yaml_info.merge!(get_plan_mtime(yaml_path)) if with_mtime
    yaml_info
  end
end

#get_plan_mtime(path) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 508

def get_plan_mtime(path)
  # If the plan is from the project modules/ directory, or is in the
  # project itself, include the last mtime of the file so we can compare
  # if the plan has been updated since it was cached.
  if @project &&
     File.exist?(path) &&
     (path.include?(File.join(@project.path, 'modules')) ||
      path.include?(@project.plans_path.to_s))

    { 'file' => { 'mtime' => File.mtime(path),
                  'path' => path } }
  else
    {}
  end
end

#get_task(task_name) ⇒ Object 



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

def get_task(task_name)
  task = task_signature(task_name)

  if task.nil?
    raise Bolt::Error.unknown_task(task_name)
  end

  Bolt::Task.from_task_signature(task)
end

#in_bolt_compiler ⇒ Object

Runs a block in a PAL script compiler configured for Bolt. Catches exceptions thrown by the block and re-raises them ensuring they are Bolt::Errors since the script compiler block will squash all exceptions.



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# File 'lib/bolt/pal.rb', line 166

def in_bolt_compiler
  # TODO: If we always call this inside a bolt_executor we can remove this here
  setup
  r = Puppet::Pal.in_tmp_environment('bolt', modulepath: full_modulepath, facts: {}) do |pal|
    # Only load the project if it a) exists, b) has a name it can be loaded with
    Puppet.override(bolt_project: @project,
                    yaml_plan_instantiator: Bolt::PAL::YamlPlan::Loader) do
      # Because this has the side effect of loading and caching the list
      # of modules, it must happen *after* we have overridden
      # bolt_project or the project will be ignored
      detect_project_conflict(@project, Puppet.lookup(:environments).get('bolt'))
      pal.with_script_compiler(set_local_facts: false) do |compiler|
        alias_types(compiler)
        register_resource_types(Puppet.lookup(:loaders)) if @resource_types
        begin
          yield compiler
        rescue Bolt::Error => e
          e
        rescue Puppet::DataBinding::LookupError => e
          if e.issue_code == :HIERA_UNDEFINED_VARIABLE
            message = "Interpolations are not supported in lookups outside of an apply block: #{e.message}"
            PALError.new(message)
          else
            PALError.from_preformatted_error(e)
          end
        rescue Puppet::PreformattedError => e
          if e.issue_code == :UNKNOWN_VARIABLE &&
             %w[facts trusted server_facts settings].include?(e.arguments[:name])
            message = "Evaluation Error: Variable '#{e.arguments[:name]}' is not available in the current scope "\
                      "unless explicitly defined."
            details = { file: e.file, line: e.line, column: e.pos }
            PALError.new(message, details)
          else
            PALError.from_preformatted_error(e)
          end
        rescue StandardError => e
          PALError.from_preformatted_error(e)
        end
      end
    end
  end

  # Plans may return PuppetError but nothing should be throwing them
  if r.is_a?(StandardError) && !r.is_a?(Bolt::PuppetError)
    raise r
  end
  r
end

#in_plan_compiler(executor, inventory, pdb_client, applicator = nil) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 240

def in_plan_compiler(executor, inventory, pdb_client, applicator = nil)
  with_bolt_executor(executor, inventory, pdb_client, applicator) do
    # TODO: remove this call and see if anything breaks when
    # settings dirs don't actually exist. Plans shouldn't
    # actually be using them.
    with_puppet_settings do
      in_bolt_compiler do |compiler|
        yield compiler
      end
    end
  end
end

#in_task_compiler(executor, inventory) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 253

def in_task_compiler(executor, inventory)
  with_bolt_executor(executor, inventory) do
    in_bolt_compiler do |compiler|
      yield compiler
    end
  end
end

#list_modules ⇒ Hash{String => Array<Hash{Symbol => String,nil}>}

Returns a mapping of all modules available to the Bolt compiler

Returns:

  • (Hash{String => Array<Hash{Symbol => String,nil}>}) —

    A hash that associates each directory on the modulepath with an array containing a hash of information for each module in that directory. The information hash provides the name, version, and a string indicating whether the module belongs to an internal module group.



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# File 'lib/bolt/pal.rb', line 557

def list_modules
  internal_module_groups = { Bolt::Config::Modulepath::BOLTLIB_PATH => 'Plan Language Modules',
                             Bolt::Config::Modulepath::MODULES_PATH => 'Packaged Modules',
                             @project.managed_moduledir.to_s => 'Project Dependencies' }

  in_bolt_compiler do
    # NOTE: Can replace map+to_h with transform_values when Ruby 2.4
    #       is the minimum supported version.
    Puppet.lookup(:current_environment).modules_by_path.map do |path, modules|
      module_group = internal_module_groups[path]

      values = modules.map do |mod|
        mod_info = { name: (mod.forge_name || mod.name),
                     version: mod.version }
        mod_info[:internal_module_group] = module_group unless module_group.nil?

        mod_info
      end

      [path, values]
    end.to_h
  end
end

#list_plans(filter_content: false) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 396

def list_plans(filter_content: false)
  in_bolt_compiler do |compiler|
    errors = []
    plans = compiler.list_plans(nil, errors).map { |plan| [plan.name] }.sort
    errors.each do |error|
      Bolt::Logger.warn("plan_load_error", error.details['original_error'])
    end

    filter_content ? filter_content(plans, @project&.plans) : plans
  end
end

#list_plans_with_cache(filter_content: false) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 363

def list_plans_with_cache(filter_content: false)
  # Don't filter content yet, so that if users update their plan filters
  # we don't need to refresh the cache
  plan_names = list_plans(filter_content: false).map(&:first)
  plan_cache = if @project
                 Bolt::Util.read_optional_json_file(@project.plan_cache_file, 'Plan cache file')
               else
                 {}
               end
  updated = false

  plan_list = plan_names.each_with_object([]) do |plan_name, list|
    info = plan_cache[plan_name] || get_plan_info(plan_name, with_mtime: true)

    # If the plan is a 'local' plan (in the project itself, or the
    # modules/ directory) then verify it hasn't been updated since we
    # cached it. If it has been updated, refresh the cache and use the
    # new data.
    if info['file'] &&
       (File.mtime(info.dig('file', 'path')) <=> info.dig('file', 'mtime')) != 0
      info = get_plan_info(plan_name, with_mtime: true)
      updated = true
      plan_cache[plan_name] = info
    end

    list << [plan_name, info['description']] unless info['private']
  end

  File.write(@project.plan_cache_file, plan_cache.to_json) if updated

  filter_content ? filter_content(plan_list, @project&.plans) : plan_list
end

#list_tasks(filter_content: false) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 302

def list_tasks(filter_content: false)
  in_bolt_compiler do |compiler|
    tasks = compiler.list_tasks.map(&:name).sort.each_with_object([]) do |task_name, data|
      task_sig = compiler.task_signature(task_name)
      unless task_sig.task_hash['metadata']['private']
        data << [task_name, task_sig.task_hash['metadata']['description']]
      end
    end

    filter_content ? filter_content(tasks, @project&.tasks) : tasks
  end
end

#parse_manifest(code, filename) ⇒ Object

Parses a snippet of Puppet manifest code and returns the AST represented in JSON.



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# File 'lib/bolt/pal.rb', line 285

def parse_manifest(code, filename)
  setup
  Puppet::Pops::Parser::EvaluatingParser.new.parse_string(code, filename)
rescue Puppet::Error => e
  raise Bolt::PAL::PALError, "Failed to parse manifest: #{e}"
end

#parse_params(type, object_name, params) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 315

def parse_params(type, object_name, params)
  in_bolt_compiler do |compiler|
    case type
    when 'task'
      param_spec = compiler.task_signature(object_name)&.task_hash&.dig('parameters')
    when 'plan'
      plan = compiler.plan_signature(object_name)
      param_spec = plan.params_type.elements&.each_with_object({}) { |t, h| h[t.name] = t.value_type } if plan
    end
    param_spec ||= {}

    params.each_with_object({}) do |(name, str), acc|
      type = param_spec[name]
      begin
        parsed = JSON.parse(str, quirks_mode: true)
        # The type may not exist if the module is remote on orch or if a task
        # defines no parameters. Since we treat no parameters as Any we
        # should parse everything in this case
        acc[name] = if type && !type.instance?(parsed)
                      str
                    else
                      parsed
                    end
      rescue JSON::ParserError
        # This value may not be assignable in which case run_* will error
        acc[name] = str
      end
      acc
    end
  end
end

#register_resource_types(loaders) ⇒ Object

Register all resource types defined in $Project/.resource_types as well as the built in types registered with the runtime_3_init method.



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# File 'lib/bolt/pal.rb', line 135

def register_resource_types(loaders)
  static_loader = loaders.static_loader
  static_loader.runtime_3_init
  if File.directory?(@resource_types)
    Dir.children(@resource_types).each do |resource_pp|
      type_name_from_file = File.basename(resource_pp, '.pp').capitalize
      typed_name = Puppet::Pops::Loader::TypedName.new(:type, type_name_from_file)
      resource_type = Puppet::Pops::Types::TypeFactory.resource(type_name_from_file)
      loaders.static_loader.set_entry(typed_name, resource_type)
    end
  end
end

#run_plan(plan_name, params, executor = nil, inventory = nil, pdb_client = nil, applicator = nil) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 610

def run_plan(plan_name, params, executor = nil, inventory = nil, pdb_client = nil, applicator = nil)
  in_plan_compiler(executor, inventory, pdb_client, applicator) do |compiler|
    r = compiler.call_function('run_plan', plan_name, params.merge('_bolt_api_call' => true))
    Bolt::PlanResult.from_pcore(r, 'success')
  end
rescue Bolt::Error => e
  Bolt::PlanResult.new(e, 'failure')
end

#run_task(task_name, targets, params, executor, inventory, description = nil) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 603

def run_task(task_name, targets, params, executor, inventory, description = nil)
  in_task_compiler(executor, inventory) do |compiler|
    params = params.merge('_bolt_api_call' => true, '_catch_errors' => true)
    compiler.call_function('run_task', task_name, targets, description, params)
  end
end

#setup ⇒ Object 



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# File 'lib/bolt/pal.rb', line 113

def setup
  unless @loaded
    # This is slow so don't do it until we have to
    Bolt::PAL.load_puppet

    # Make sure we don't create the puppet directories
    with_puppet_settings { |_| nil }
    @loaded = true
  end
end

#task_signature(task_name) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 347

def task_signature(task_name)
  in_bolt_compiler do |compiler|
    compiler.task_signature(task_name)
  end
end

#user_modulepath ⇒ Object 



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# File 'lib/bolt/pal.rb', line 76

def user_modulepath
  @modulepath.user_modulepath
end

#with_bolt_executor(executor, inventory, pdb_client = nil, applicator = nil, &block) ⇒ Object 



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# File 'lib/bolt/pal.rb', line 215

def with_bolt_executor(executor, inventory, pdb_client = nil, applicator = nil, &block)
  setup
  opts = {
    bolt_project: @project,
    bolt_executor: executor,
    bolt_inventory: inventory,
    bolt_pdb_client: pdb_client,
    apply_executor: applicator || Applicator.new(
      inventory,
      executor,
      full_modulepath,
      # Skip syncing built-in plugins, since we vendor some Puppet 6
      # versions of "core" types, which are already present on the agent,
      # but may cause issues on Puppet 5 agents.
      user_modulepath,
      @project,
      pdb_client,
      @hiera_config,
      @max_compiles,
      @apply_settings
    )
  }
  Puppet.override(opts, &block)
end

#with_puppet_settings ⇒ Object

TODO: PUP-8553 should replace this



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# File 'lib/bolt/pal.rb', line 262

def with_puppet_settings
  dir = Dir.mktmpdir('bolt')

  cli = []
  Puppet::Settings::REQUIRED_APP_SETTINGS.each do |setting|
    cli << "--#{setting}" << dir
  end
  Puppet.settings.send(:clear_everything_for_tests)
  Puppet.initialize_settings(cli)
  Puppet::GettextConfig.create_default_text_domain
  Puppet[:trusted_external_command] = @trusted_external
  Puppet.settings[:hiera_config] = @hiera_config
  self.class.configure_logging
  yield
ensure
  # Delete the tmpdir if it still exists. This check is needed to
  # prevent Bolt from erroring if the tmpdir is somehow deleted
  # before reaching this point.
  FileUtils.remove_entry_secure(dir) if File.exist?(dir)
end