Class: Chef::Resource

Inherits:
Object
  • Object
show all
Extended by:
DSL::Universal, Mixin::ConvertToClassName, Mixin::Provides
Includes:
DSL::DeclareResource, DSL::RebootPending, DSL::Universal, Mixin::ConvertToClassName, Mixin::Deprecation, Mixin::Properties
Defined in:
lib/chef/resource.rb,
lib/chef/resource/csh.rb,
lib/chef/resource/ksh.rb,
lib/chef/resource/log.rb,
lib/chef/resource/bash.rb,
lib/chef/resource/file.rb,
lib/chef/resource/link.rb,
lib/chef/resource/ohai.rb,
lib/chef/resource/perl.rb,
lib/chef/resource/ruby.rb,
lib/chef/resource/sudo.rb,
lib/chef/resource/user.rb,
lib/chef/resource/batch.rb,
lib/chef/resource/group.rb,
lib/chef/resource/mdadm.rb,
lib/chef/resource/mount.rb,
lib/chef/resource/plist.rb,
lib/chef/resource/route.rb,
lib/chef/resource/locale.rb,
lib/chef/resource/python.rb,
lib/chef/resource/reboot.rb,
lib/chef/resource/script.rb,
lib/chef/resource/sysctl.rb,
lib/chef/resource/execute.rb,
lib/chef/resource/launchd.rb,
lib/chef/resource/package.rb,
lib/chef/resource/scm/git.rb,
lib/chef/resource/service.rb,
lib/chef/resource/chef_gem.rb,
lib/chef/resource/hostname.rb,
lib/chef/resource/ifconfig.rb,
lib/chef/resource/template.rb,
lib/chef/resource/timezone.rb,
lib/chef/resource/cron/cron.rb,
lib/chef/resource/directory.rb,
lib/chef/resource/lwrp_base.rb,
lib/chef/resource/ohai_hint.rb,
lib/chef/resource/rhsm_repo.rb,
lib/chef/resource/swap_file.rb,
lib/chef/resource/apt_update.rb,
lib/chef/resource/breakpoint.rb,
lib/chef/resource/chef_sleep.rb,
lib/chef/resource/dsc_script.rb,
lib/chef/resource/ruby_block.rb,
lib/chef/resource/apt_package.rb,
lib/chef/resource/bff_package.rb,
lib/chef/resource/cab_package.rb,
lib/chef/resource/conditional.rb,
lib/chef/resource/cron/cron_d.rb,
lib/chef/resource/cron_access.rb,
lib/chef/resource/dmg_package.rb,
lib/chef/resource/dnf_package.rb,
lib/chef/resource/gem_package.rb,
lib/chef/resource/ips_package.rb,
lib/chef/resource/msu_package.rb,
lib/chef/resource/osx_profile.rb,
lib/chef/resource/remote_file.rb,
lib/chef/resource/rhsm_errata.rb,
lib/chef/resource/rpm_package.rb,
lib/chef/resource/user_ulimit.rb,
lib/chef/resource/windows_env.rb,
lib/chef/resource/windows_uac.rb,
lib/chef/resource/yum_package.rb,
lib/chef/resource/action_class.rb,
lib/chef/resource/alternatives.rb,
lib/chef/resource/archive_file.rb,
lib/chef/resource/chef_handler.rb,
lib/chef/resource/dpkg_package.rb,
lib/chef/resource/dsc_resource.rb,
lib/chef/resource/homebrew_tap.rb,
lib/chef/resource/http_request.rb,
lib/chef/resource/inspec_input.rb,
lib/chef/resource/notify_group.rb,
lib/chef/resource/registry_key.rb,
lib/chef/resource/snap_package.rb,
lib/chef/resource/systemd_unit.rb,
lib/chef/resource/user/pw_user.rb,
lib/chef/resource/windows_font.rb,
lib/chef/resource/windows_path.rb,
lib/chef/resource/windows_task.rb,
lib/chef/resource/cookbook_file.rb,
lib/chef/resource/homebrew_cask.rb,
lib/chef/resource/inspec_waiver.rb,
lib/chef/resource/kernel_module.rb,
lib/chef/resource/rhsm_register.rb,
lib/chef/resource/user/aix_user.rb,
lib/chef/resource/user/mac_user.rb,
lib/chef/resource/windows_share.rb,
lib/chef/resource/apt_preference.rb,
lib/chef/resource/apt_repository.rb,
lib/chef/resource/habitat_config.rb,
lib/chef/resource/macosx_service.rb,
lib/chef/resource/pacman_package.rb,
lib/chef/resource/scm/subversion.rb,
lib/chef/resource/windows_script.rb,
lib/chef/resource/yum_repository.rb,
lib/chef/resource/zypper_package.rb,
lib/chef/resource/build_essential.rb,
lib/chef/resource/freebsd_package.rb,
lib/chef/resource/habitat_install.rb,
lib/chef/resource/habitat_service.rb,
lib/chef/resource/homebrew_update.rb,
lib/chef/resource/openbsd_package.rb,
lib/chef/resource/openssl_dhparam.rb,
lib/chef/resource/paludis_package.rb,
lib/chef/resource/portage_package.rb,
lib/chef/resource/smartos_package.rb,
lib/chef/resource/solaris_package.rb,
lib/chef/resource/user/linux_user.rb,
lib/chef/resource/windows_ad_join.rb,
lib/chef/resource/windows_feature.rb,
lib/chef/resource/windows_package.rb,
lib/chef/resource/windows_printer.rb,
lib/chef/resource/windows_service.rb,
lib/chef/resource/chef_client_cron.rb,
lib/chef/resource/homebrew_package.rb,
lib/chef/resource/macports_package.rb,
lib/chef/resource/openssl_x509_crl.rb,
lib/chef/resource/remote_directory.rb,
lib/chef/resource/windows_auto_run.rb,
lib/chef/resource/windows_defender.rb,
lib/chef/resource/windows_dns_zone.rb,
lib/chef/resource/windows_pagefile.rb,
lib/chef/resource/windows_shortcut.rb,
lib/chef/resource/chef_vault_secret.rb,
lib/chef/resource/chocolatey_config.rb,
lib/chef/resource/chocolatey_source.rb,
lib/chef/resource/file/verification.rb,
lib/chef/resource/habitat_user_toml.rb,
lib/chef/resource/powershell_script.rb,
lib/chef/resource/rhsm_errata_level.rb,
lib/chef/resource/rhsm_subscription.rb,
lib/chef/resource/user/solaris_user.rb,
lib/chef/resource/user/windows_user.rb,
lib/chef/resource/windows_workgroup.rb,
lib/chef/resource/zypper_repository.rb,
lib/chef/resource/chef_client_config.rb,
lib/chef/resource/chocolatey_feature.rb,
lib/chef/resource/chocolatey_package.rb,
lib/chef/resource/macos_userdefaults.rb,
lib/chef/resource/powershell_package.rb,
lib/chef/resource/windows_dfs_folder.rb,
lib/chef/resource/windows_dfs_server.rb,
lib/chef/resource/windows_dns_record.rb,
lib/chef/resource/chef_client_launchd.rb,
lib/chef/resource/habitat/habitat_sup.rb,
lib/chef/resource/windows_certificate.rb,
lib/chef/resource/openssl_x509_request.rb,
lib/chef/resource/windows_audit_policy.rb,
lib/chef/resource/windows_feature_dism.rb,
lib/chef/resource/windows_printer_port.rb,
lib/chef/resource/openssl_ec_public_key.rb,
lib/chef/resource/resource_notification.rb,
lib/chef/resource/ssh_known_hosts_entry.rb,
lib/chef/resource/windows_dfs_namespace.rb,
lib/chef/resource/windows_firewall_rule.rb,
lib/chef/resource/file/verification/json.rb,
lib/chef/resource/file/verification/yaml.rb,
lib/chef/resource/openssl_ec_private_key.rb,
lib/chef/resource/openssl_rsa_public_key.rb,
lib/chef/resource/whyrun_safe_ruby_block.rb,
lib/chef/resource/windows_user_privilege.rb,
lib/chef/resource/habitat/habitat_package.rb,
lib/chef/resource/openssl_rsa_private_key.rb,
lib/chef/resource/windows_security_policy.rb,
lib/chef/resource/windows_update_settings.rb,
lib/chef/resource/inspec_waiver_file_entry.rb,
lib/chef/resource/openssl_x509_certificate.rb,
lib/chef/resource/windows_firewall_profile.rb,
lib/chef/resource/chef_client_systemd_timer.rb,
lib/chef/resource/powershell_package_source.rb,
lib/chef/resource/chef_client_scheduled_task.rb,
lib/chef/resource/windows_defender_exclusion.rb,
lib/chef/resource/windows_feature_powershell.rb,
lib/chef/resource/habitat/habitat_sup_systemd.rb,
lib/chef/resource/habitat/habitat_sup_windows.rb,
lib/chef/resource/conditional_action_not_nothing.rb,
lib/chef/resource/file/verification/systemd_unit.rb,
lib/chef/resource/chef_client_trusted_certificate.rb

Direct Known Subclasses

Alternatives, AptPreference, AptRepository, AptUpdate, ArchiveFile, Breakpoint, BuildEssential, ChefClientConfig, ChefClientCron, ChefClientLaunchd, ChefClientScheduledTask, ChefClientSystemdTimer, ChefClientTrustedCertificate, ChefHandler, ChefSleep, ChefVaultSecret, ChocolateyConfig, ChocolateyFeature, ChocolateySource, Cron, CronAccess, CronD, Directory, DmgPackage, DscResource, DscScript, Execute, File, Git, Group, HabitatConfig, HabitatInstall, HabitatService, HabitatSup, HabitatUserToml, HomebrewCask, HomebrewTap, HomebrewUpdate, Hostname, HttpRequest, Ifconfig, InspecInput, InspecWaiver, InspecWaiverFileEntry, KernelModule, LWRPBase, Launchd, Link, Locale, Log, MacosUserDefaults, Mdadm, Mount, NotifyGroup, Ohai, OhaiHint, OpensslDhparam, OpensslEcPrivateKey, OpensslEcPublicKey, OpensslRsaPrivateKey, OpensslRsaPublicKey, OpensslX509Certificate, OpensslX509Crl, OpensslX509Request, OsxProfile, Package, PlistResource, PowershellPackageSource, Reboot, RegistryKey, RhsmErrata, RhsmErrataLevel, RhsmRegister, RhsmRepo, RhsmSubscription, Route, RubyBlock, Service, SshKnownHostsEntry, Subversion, Sudo, SwapFile, Sysctl, SystemdUnit, Timezone, UnresolvedSubscribes, User, UserUlimit, WindowsAdJoin, WindowsAuditPolicy, WindowsAutorun, WindowsCertificate, WindowsDefender, WindowsDefenderExclusion, WindowsDfsFolder, WindowsDfsNamespace, WindowsDfsServer, WindowsDnsRecord, WindowsDnsZone, WindowsEnv, WindowsFeature, WindowsFeatureDism, WindowsFeaturePowershell, WindowsFirewallProfile, WindowsFirewallRule, WindowsFont, WindowsPagefile, WindowsPath, WindowsPrinter, WindowsPrinterPort, WindowsSecurityPolicy, WindowsShare, WindowsShortcut, WindowsTask, WindowsUac, WindowsUpdateSettings, WindowsUserPrivilege, WindowsWorkgroup, YumRepository, ZypperRepository

Defined Under Namespace

Classes: ActionClass, Alternatives, AptPackage, AptPreference, AptRepository, AptUpdate, ArchiveFile, Bash, Batch, BffPackage, Breakpoint, BuildEssential, CabPackage, ChefClientConfig, ChefClientCron, ChefClientLaunchd, ChefClientScheduledTask, ChefClientSystemdTimer, ChefClientTrustedCertificate, ChefGem, ChefHandler, ChefSleep, ChefVaultSecret, ChocolateyConfig, ChocolateyFeature, ChocolateyPackage, ChocolateySource, Conditional, ConditionalActionNotNothing, CookbookFile, Cron, CronAccess, CronD, Csh, Directory, DmgPackage, DnfPackage, DpkgPackage, DscResource, DscScript, Execute, File, FreebsdPackage, GemPackage, Git, Group, HabitatConfig, HabitatInstall, HabitatPackage, HabitatService, HabitatSup, HabitatSupSystemd, HabitatSupWindows, HabitatUserToml, HomebrewCask, HomebrewPackage, HomebrewTap, HomebrewUpdate, Hostname, HttpRequest, Ifconfig, InspecInput, InspecWaiver, InspecWaiverFileEntry, IpsPackage, KernelModule, Ksh, LWRPBase, Launchd, Link, Locale, Log, MacosUserDefaults, MacosxService, MacportsPackage, Mdadm, Mount, MsuPackage, Notification, NotifyGroup, Ohai, OhaiHint, OpenbsdPackage, OpensslDhparam, OpensslEcPrivateKey, OpensslEcPublicKey, OpensslRsaPrivateKey, OpensslRsaPublicKey, OpensslX509Certificate, OpensslX509Crl, OpensslX509Request, OsxProfile, Package, PacmanPackage, PaludisPackage, Perl, PlistResource, PortagePackage, PowershellPackage, PowershellPackageSource, PowershellScript, Python, Reboot, RegistryKey, RemoteDirectory, RemoteFile, RhsmErrata, RhsmErrataLevel, RhsmRegister, RhsmRepo, RhsmSubscription, Route, RpmPackage, Ruby, RubyBlock, Script, Service, SmartosPackage, SnapPackage, SolarisPackage, SshKnownHostsEntry, Subversion, Sudo, SwapFile, Sysctl, SystemdUnit, Template, Timezone, UnresolvedSubscribes, User, UserUlimit, WhyrunSafeRubyBlock, WindowsAdJoin, WindowsAuditPolicy, WindowsAutorun, WindowsCertificate, WindowsDefender, WindowsDefenderExclusion, WindowsDfsFolder, WindowsDfsNamespace, WindowsDfsServer, WindowsDnsRecord, WindowsDnsZone, WindowsEnv, WindowsFeature, WindowsFeatureDism, WindowsFeaturePowershell, WindowsFirewallProfile, WindowsFirewallRule, WindowsFont, WindowsPackage, WindowsPagefile, WindowsPath, WindowsPrinter, WindowsPrinterPort, WindowsScript, WindowsSecurityPolicy, WindowsService, WindowsShare, WindowsShortcut, WindowsTask, WindowsUac, WindowsUpdateSettings, WindowsUserPrivilege, WindowsWorkgroup, YumPackage, YumRepository, ZypperPackage, ZypperRepository

Constant Summary collapse

FORBIDDEN_IVARS =

FORBIDDEN_IVARS do not show up when the resource is converted to JSON (ie. hidden from data_collector and sending to the chef server via #to_json/to_h/as_json/inspect)

%i{@run_context @logger @not_if @only_if @enclosing_provider @description @introduced @examples @validation_message @deprecated @default_description @skip_docs @executed_by_runner @action_descriptions}.freeze
HIDDEN_IVARS =

HIDDEN_IVARS do not show up when the resource is displayed to the user as text (ie. in the error inspector output via #to_text)

%i{@allowed_actions @resource_name @source_line @run_context @logger @name @not_if @only_if @elapsed_time @enclosing_provider @description @introduced @examples @validation_message @deprecated @default_description @skip_docs @executed_by_runner @action_descriptions}.freeze
@@sorted_descendants =

This classvariable is part of a private API. You should avoid using this classvariable if possible, as it may be removed or be changed in the future.

Deprecated.

We memoize a sorted version of descendants so that resource lookups don't have to sort all the things, all the time. This was causing performance issues in test runs, and probably in real life as well.

nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Mixin::Provides

provided_as, provides, provides?

Methods included from Mixin::DescendantsTracker

#descendants, descendants, #direct_descendants, direct_descendants, #find_descendants_by_name, find_descendants_by_name, #inherited, store_inherited

Methods included from Mixin::LazyModuleInclude

#descendants, #include, #included

Methods included from Mixin::PowershellOut

#powershell_out, #powershell_out!

Methods included from Mixin::WindowsArchitectureHelper

#assert_valid_windows_architecture!, #disable_wow64_file_redirection, #forced_32bit_override_required?, #is_i386_process_on_x86_64_windows?, #node_supports_windows_architecture?, #node_windows_architecture, #restore_wow64_file_redirection, #valid_windows_architecture?, #with_os_architecture, #wow64_architecture_override_required?, #wow64_directory

Methods included from Mixin::PowershellExec

#powershell_exec, #powershell_exec!

Methods included from DSL::Secret

#secret

Methods included from DSL::RenderHelpers

#render_json, #render_toml, #render_yaml

Methods included from DSL::ReaderHelpers

#parse_file, #parse_json, #parse_toml, #parse_yaml

Methods included from DSL::Powershell

#ps_credential

Methods included from DSL::RegistryHelper

#registry_data_exists?, #registry_get_subkeys, #registry_get_values, #registry_has_subkeys?, #registry_key_exists?, #registry_value_exists?

Methods included from DSL::ChefVault

#chef_vault, #chef_vault_item, #chef_vault_item_for_environment

Methods included from DSL::DataQuery

#data_bag, #data_bag_item, #search, #tagged?

Methods included from EncryptedDataBagItem::CheckEncrypted

#encrypted?

Methods included from DSL::PlatformIntrospection

#older_than_win_2012_or_8?, #platform?, #platform_family?, #value_for_platform, #value_for_platform_family

Methods included from Mixin::ConvertToClassName

convert_to_class_name, convert_to_snake_case, filename_to_qualified_string, normalize_snake_case_name, snake_case_basename

Methods included from Mixin::Deprecation

#deprecated_attr, #deprecated_attr_reader, #deprecated_attr_writer, #deprecated_ivar

Methods included from Mixin::Properties

#copy_properties_from, included, #property_description, #property_is_set?, #reset_property

Methods included from Mixin::ParamsValidate

#lazy, #set_or_return, #validate

Methods included from DSL::RebootPending

#reboot_pending?

Methods included from DSL::DeclareResource

#build_resource, #declare_resource, #delete_resource, #delete_resource!, #edit_resource, #edit_resource!, #find_resource, #find_resource!, #resources, #with_run_context

Constructor Details

#initialize(name, run_context = nil) ⇒ Resource

Create a new Resource.

Parameters:

  • name

    The name of this resource (corresponds to the #name attribute, used for notifications to this resource).

  • run_context (defaults to: nil)

    The context of the Chef run. Corresponds to #run_context.


111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
# File 'lib/chef/resource.rb', line 111

def initialize(name, run_context = nil)
  name(name) unless name.nil?
  @run_context = run_context

  @logger = if run_context
              run_context.logger.with_child({ name: name, resource: resource_name })
            else
              Chef::Log.with_child({ name: name, resource: resource_name })
            end

  @before = nil
  @params = {}
  @provider = nil
  @allowed_actions = self.class.allowed_actions.to_a
  @action = self.class.default_action
  @updated = false
  @updated_by_last_action = false
  @not_if = []
  @only_if = []
  @source_line = nil
  @deprecated = false
  @skip_docs = false
  # We would like to raise an error when the user gives us a guard
  # interpreter and a ruby_block to the guard. In order to achieve this
  # we need to understand when the user overrides the default guard
  # interpreter. Therefore we store the default separately in a different
  # attribute.
  @guard_interpreter = nil
  @default_guard_interpreter = :default
  @elapsed_time = 0
  @executed_by_runner = false
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_symbol, *args, &block) ⇒ Object

If an unknown method is invoked, determine whether the enclosing Provider's lexical scope can fulfill the request. E.g. This happens when the Resource's block invokes new_resource.


1339
1340
1341
1342
1343
1344
1345
# File 'lib/chef/resource.rb', line 1339

def method_missing(method_symbol, *args, &block)
  if enclosing_provider && enclosing_provider.respond_to?(method_symbol)
    enclosing_provider.send(method_symbol, *args, &block)
  else
    raise NoMethodError, "undefined method `#{method_symbol}' for #{self.class}"
  end
end

Instance Attribute Details

#allowed_actions(value = NOT_PASSED) ⇒ Object


890
891
892
893
894
895
# File 'lib/chef/resource.rb', line 890

def allowed_actions(value = NOT_PASSED)
  if value != NOT_PASSED
    self.allowed_actions = value
  end
  @allowed_actions
end

#cookbook_nameString

Returns The cookbook this resource was declared in.

Returns:

  • (String)

    The cookbook this resource was declared in.


1244
1245
1246
# File 'lib/chef/resource.rb', line 1244

def cookbook_name
  @cookbook_name
end

#declared_typeString

The actual name that was used to create this resource. Sometimes, when you say something like `package 'blah'`, the system will create a different resource (i.e. `YumPackage`). When this happens, the user will expect to see the thing they wrote, not the type that was returned. May be `nil`, in which case callers should read #resource_name. See #declared_key.

Returns:

  • (String)

    The actual name that was used to create this resource. Sometimes, when you say something like `package 'blah'`, the system will create a different resource (i.e. `YumPackage`). When this happens, the user will expect to see the thing they wrote, not the type that was returned. May be `nil`, in which case callers should read #resource_name. See #declared_key.


1272
1273
1274
# File 'lib/chef/resource.rb', line 1272

def declared_type
  @declared_type
end

#default_guard_interpreterClass, ... (readonly)

The guard interpreter that will be used to process `only_if` and `not_if` statements by default. If left unset, or set to `:default`, the guard interpreter used will be Chef::GuardInterpreter::DefaultGuardInterpreter.

Must be a resource class like `Chef::Resource::Execute`, or a corresponding to the name of a resource. The resource must descend from `Chef::Resource::Execute`.

TODO this needs to be coerced on input so that retrieval is consistent.

Returns:

  • (Class, Symbol, String)

    the default Guard interpreter resource.


879
880
881
# File 'lib/chef/resource.rb', line 879

def default_guard_interpreter
  @default_guard_interpreter
end

#elapsed_timeInteger (readonly)

The time it took (in seconds) to run the most recently-run action. Not cumulative across actions. This is set to 0 as soon as a new action starts running, and set to the elapsed time at the end of the action.

action. Not cumulative.

Returns:

  • (Integer)

    The time (in seconds) it took to process the most recent


469
470
471
# File 'lib/chef/resource.rb', line 469

def elapsed_time
  @elapsed_time
end

#enclosing_providerChef::Provider

Returns The provider this resource was declared in (if it was declared in an LWRP). When you call methods that do not exist on this Resource, Chef will try to call the method on the provider as well before giving up.

Returns:

  • (Chef::Provider)

    The provider this resource was declared in (if it was declared in an LWRP). When you call methods that do not exist on this Resource, Chef will try to call the method on the provider as well before giving up.


1255
1256
1257
# File 'lib/chef/resource.rb', line 1255

def enclosing_provider
  @enclosing_provider
end

#executed_by_runnerBoolean

Returns If the resource was executed by the runner.

Returns:

  • (Boolean)

    If the resource was executed by the runner


473
474
475
# File 'lib/chef/resource.rb', line 473

def executed_by_runner
  @executed_by_runner
end

#loggerMixlib::Log::Child (readonly)

of the run context's logger, if one exists.

Returns:

  • (Mixlib::Log::Child)

    The logger for this resources. This is a child


1240
1241
1242
# File 'lib/chef/resource.rb', line 1240

def logger
  @logger
end

#paramsObject

XXX: this is required for definition params inside of the scope of a subresource to work correctly.


1229
1230
1231
# File 'lib/chef/resource.rb', line 1229

def params
  @params
end

#recipe_nameString

Returns The recipe this resource was declared in.

Returns:

  • (String)

    The recipe this resource was declared in.


1248
1249
1250
# File 'lib/chef/resource.rb', line 1248

def recipe_name
  @recipe_name
end

#resource_initializingObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

If we are currently initializing the resource, this will be true.

Do NOT use this. It may be removed. It is for internal purposes only.


637
638
639
# File 'lib/chef/resource.rb', line 637

def resource_initializing
  @resource_initializing
end

#run_contextChef::RunContext

where the context for the current Chef run is stored, including the node and the resource collection.

Returns:


1235
1236
1237
# File 'lib/chef/resource.rb', line 1235

def run_context
  @run_context
end

#source_lineString

Returns The source line where this resource was declared. Expected to come from caller() or a stack trace, it usually follows one of these formats:

/some/path/to/file.rb:80:in `wombat_tears'
C:/some/path/to/file.rb:80 in 1`wombat_tears'.

Returns:

  • (String)

    The source line where this resource was declared. Expected to come from caller() or a stack trace, it usually follows one of these formats:

    /some/path/to/file.rb:80:in `wombat_tears'
    C:/some/path/to/file.rb:80 in 1`wombat_tears'
    

1263
1264
1265
# File 'lib/chef/resource.rb', line 1263

def source_line
  @source_line
end

#updatedBoolean (readonly)

Whether or not this resource was updated during an action. If multiple actions are set on the resource, this will be `true` if any action caused an update to happen.

Returns:

  • (Boolean)

    Whether the resource was updated during an action.


904
905
906
# File 'lib/chef/resource.rb', line 904

def updated
  @updated
end

Class Method Details

.action(action, description: nil, &recipe_block) ⇒ Object

Define an action on this resource.

The action is defined as a recipe block that will be compiled and then converged when the action is taken (when Resource is converged). The recipe has access to the resource's attributes and methods, as well as the Chef recipe DSL.

Resources in the action recipe may notify and subscribe to other resources within the action recipe, but cannot notify or subscribe to resources in the main Chef run.

Resource actions are inheritable: if resource A defines `action :create` and B is a subclass of A, B gets all of A's actions. Additionally, resource B can define `action :create` and call `super()` to invoke A's action code.

The first action defined (besides `:nothing`) will become the default action for the resource.

Parameters:

  • name (Symbol)

    The action name to define.

  • description (String) (defaults to: nil)

    optional description for the action. Used for documentation generation.

  • recipe_block

    The recipe to run when the action is taken. This block takes no parameters, and will be evaluated in a new context containing:

    • The resource's public and protected methods (including attributes)

    • The Chef Recipe DSL (file, etc.)

    • super() referring to the parent version of the action (if any)

Returns:

  • The Action class implementing the action


1077
1078
1079
1080
1081
1082
1083
# File 'lib/chef/resource.rb', line 1077

def self.action(action, description: nil, &recipe_block)
  action = action.to_sym
  declare_action_class
  action_class.action(action, description: description, &recipe_block)
  self.allowed_actions += [ action ]
  default_action action if Array(default_action) == [:nothing]
end

.action_class(&block) ⇒ Object

The action class is a `Chef::Provider` which is created at Resource class evaluation time when the Custom Resource is being constructed.

This happens the first time the ruby parser hits an `action` or an `action_class` method, the presence of either indicates that this is going to be a Chef-12.5 custom resource. If we never see one of these directives then we are constructing an old-style Resource+Provider or LWRP or whatever.

If a block is passed, the action_class is always created and the block is run inside it.


1151
1152
1153
1154
1155
# File 'lib/chef/resource.rb', line 1151

def self.action_class(&block)
  @action_class ||= declare_action_class
  @action_class.class_eval(&block) if block
  @action_class
end

.allowed_actions(*actions) ⇒ Array<Symbol>

The list of allowed actions for the resource.

Parameters:

  • actions (Array<Symbol>)

    The list of actions to add to allowed_actions.

Returns:

  • (Array<Symbol>)

    The list of actions, as symbols.


1000
1001
1002
1003
1004
1005
1006
1007
1008
# File 'lib/chef/resource.rb', line 1000

def self.allowed_actions(*actions)
  @allowed_actions ||=
    if superclass.respond_to?(:allowed_actions)
      superclass.allowed_actions.dup
    else
      [ :nothing ]
    end
  @allowed_actions |= actions.flatten
end

.allowed_actions=(value) ⇒ Object


1010
1011
1012
# File 'lib/chef/resource.rb', line 1010

def self.allowed_actions=(value)
  @allowed_actions = value.uniq
end

.chef_version_for_provides(constraint = NOT_PASSED) ⇒ Object

This API can be used for backcompat to do:

chef_version_for_provides “< 14.0” if defined?(:chef_version_for_provides)

For core chef versions that do not support chef_version: in provides lines.

Since resource_name calls provides the generally correct way of doing this is to do `chef_version_for_provides` first, then `resource_name` and then any additional options `provides` lines.

Once we no longer care about supporting chef < 14.4 then we can deprecate this API.

Parameters:

  • arg (String)

    version constraint to match against (e.g. “> 14”)


1362
1363
1364
1365
# File 'lib/chef/resource.rb', line 1362

def self.chef_version_for_provides(constraint = NOT_PASSED)
  @chef_version_for_provides = constraint unless constraint == NOT_PASSED
  @chef_version_for_provides ||= nil
end

.custom_resource?Boolean

Returns true or false based on if the resource is a custom resource. The top-level Chef::Resource is not a chef resource. This value is inherited.

Returns:

  • (Boolean)

    if the resource is a custom_resource


1161
1162
1163
# File 'lib/chef/resource.rb', line 1161

def self.custom_resource?
  false
end

.declare_action_classObject

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Ensure the action class actually gets created. This is called when the user does `action :x do … end`.


1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
# File 'lib/chef/resource.rb', line 1181

def self.declare_action_class
  @action_class ||=
    begin
      is_custom_resource!
      base_provider =
        if superclass.custom_resource?
          superclass.action_class
        else

          ActionClass
        end

      resource_class = self
      Class.new(base_provider) do
        self.resource_class = resource_class
      end
    end
end

.default_action(action_name = NOT_PASSED) ⇒ Array<Symbol>

The action that will be run if no other action is specified.

Setting default_action will automatically add the action to allowed_actions, if it isn't already there.

Defaults to [:nothing].

Parameters:

  • action_name (Symbol, Array<Symbol>) (defaults to: NOT_PASSED)

    The default action (or series of actions) to use.

Returns:

  • (Array<Symbol>)

    The default actions for the resource.


1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
# File 'lib/chef/resource.rb', line 1027

def self.default_action(action_name = NOT_PASSED)
  unless action_name.equal?(NOT_PASSED)
    @default_action = Array(action_name).map(&:to_sym)
    self.allowed_actions |= @default_action
  end

  if defined?(@default_action) && @default_action
    @default_action
  elsif superclass.respond_to?(:default_action)
    superclass.default_action
  else
    [:nothing]
  end
end

.default_action=(action_name) ⇒ Object


1042
1043
1044
# File 'lib/chef/resource.rb', line 1042

def self.default_action=(action_name)
  default_action action_name
end

.default_description(default_description = "NOT_PASSED") ⇒ Object


1485
1486
1487
1488
1489
1490
# File 'lib/chef/resource.rb', line 1485

def self.default_description(default_description = "NOT_PASSED")
  if default_description != "NOT_PASSED"
    @default_description = default_description
  end
  @default_description
end

.deprecated(deprecated = "NOT_PASSED") ⇒ Object


1470
1471
1472
1473
1474
1475
1476
# File 'lib/chef/resource.rb', line 1470

def self.deprecated(deprecated = "NOT_PASSED")
  if deprecated != "NOT_PASSED"
    @deprecated = true
    @deprecated_message = deprecated
  end
  @deprecated
end

.description(description = "NOT_PASSED") ⇒ Object


1449
1450
1451
1452
1453
1454
# File 'lib/chef/resource.rb', line 1449

def self.description(description = "NOT_PASSED")
  if description != "NOT_PASSED"
    @description = description
  end
  @description
end

.examples(examples = "NOT_PASSED") ⇒ Object


1463
1464
1465
1466
1467
1468
# File 'lib/chef/resource.rb', line 1463

def self.examples(examples = "NOT_PASSED")
  if examples != "NOT_PASSED"
    @examples = examples
  end
  @examples
end

.from_hash(o) ⇒ Object


736
737
738
739
740
741
742
# File 'lib/chef/resource.rb', line 736

def self.from_hash(o)
  resource = new(o["instance_vars"]["@name"])
  o["instance_vars"].each do |k, v|
    resource.instance_variable_set("@#{k}".to_sym, v)
  end
  resource
end

.from_json(j) ⇒ Object


748
749
750
# File 'lib/chef/resource.rb', line 748

def self.from_json(j)
  from_hash(Chef::JSONCompat.parse(j))
end

.identity_attr(name = nil) ⇒ Symbol

Deprecated.

`identity_property` should be used instead.

Set a property as the “identity attribute” for this resource.

Identical to calling #identity_property.first.key.

Parameters:

  • name (Symbol) (defaults to: nil)

    The name of the property to set.

Returns:

Raises:

  • (ArgumentError)

    If no arguments are passed and the resource has more than one identity property.


859
860
861
862
863
864
# File 'lib/chef/resource.rb', line 859

def self.identity_attr(name = nil)
  property = identity_property(name)
  return nil unless property

  property.name
end

.identity_property(name = nil) ⇒ Symbol

Set the identity of this resource to a particular property.

This drives #identity, which returns data that uniquely refers to a given resource on the given node (in such a way that it can be correlated across Chef runs).

This method is unnecessary when declaring properties with `property`; properties can be added to identity during declaration with `identity: true`.

“`ruby property :x, identity: true # part of identity property :y # not part of identity “`

Parameters:

  • name (Symbol) (defaults to: nil)

    A list of property names to set as the identity.

Returns:

  • (Symbol)

    The identity property if there is only one; or `nil` if there are more than one.

Raises:

  • (ArgumentError)

    If no arguments are passed and the resource has more than one identity property.


836
837
838
839
840
841
842
843
# File 'lib/chef/resource.rb', line 836

def self.identity_property(name = nil)
  result = identity_properties(*Array(name))
  if result.size > 1
    raise Chef::Exceptions::MultipleIdentityError, "identity_property cannot be called on an object with more than one identity property (#{result.map(&:name).join(", ")})."
  end

  result.first
end

.inherited(child) ⇒ Object


1331
1332
1333
1334
# File 'lib/chef/resource.rb', line 1331

def self.inherited(child)
  super
  @@sorted_descendants = nil
end

.introduced(introduced = "NOT_PASSED") ⇒ Object


1456
1457
1458
1459
1460
1461
# File 'lib/chef/resource.rb', line 1456

def self.introduced(introduced = "NOT_PASSED")
  if introduced != "NOT_PASSED"
    @introduced = introduced
  end
  @introduced
end

.is_custom_resource!Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This sets the resource to being a custom resource, and does so in a way that automatically inherits to all subclasses via defining a method on the class (class variables and class instance variables don't have the correct semantics here, this is a poor man's activesupport class_attribute)


1171
1172
1173
1174
1175
# File 'lib/chef/resource.rb', line 1171

def self.is_custom_resource!
  define_singleton_method :custom_resource? do
    true
  end
end

.json_create(o) ⇒ Object


744
745
746
# File 'lib/chef/resource.rb', line 744

def self.json_create(o)
  from_hash(o)
end

.load_current_value(&load_block) ⇒ Object

Define a method to load up this resource's properties with the current actual values.

Parameters:

  • load_block

    The block to load. Will be run in the context of a newly created resource with its identity values filled in.


1108
1109
1110
# File 'lib/chef/resource.rb', line 1108

def self.load_current_value(&load_block)
  define_method(:load_current_value!, &load_block)
end

.preview_resource(value = nil) ⇒ Boolean

Set or return if this resource is in preview mode.

This only has value in the resource_inspector to mark a resource as being new-to-chef-core. Its meaning is probably more equivalent to “experimental” in that the API might change even in minor versions due to bugfixing and is NOT considered “stable” yet.

Parameters:

  • value (nil, Boolean) (defaults to: nil)

    If nil, get the current value. If not nil, set the value of the flag.

Returns:

  • (Boolean)

1209
1210
1211
1212
1213
# File 'lib/chef/resource.rb', line 1209

def self.preview_resource(value = nil)
  @preview_resource = false unless defined?(@preview_resource)
  @preview_resource = value unless value.nil?
  @preview_resource
end

.provides(name, **options, &block) ⇒ Object

Mark this resource as providing particular DSL.

Resources have an automatic DSL based on their resource_name, equivalent to `provides :resource_name` (providing the resource on all OS's). If you declare a `provides` with the given resource_name, it replaces that provides (so that you can provide your resource DSL only on certain OS's).


1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
# File 'lib/chef/resource.rb', line 1374

def self.provides(name, **options, &block)
  name = name.to_sym

  # deliberately do not go through the accessor here
  @resource_name = name if resource_name.nil?

  if chef_version_for_provides && !options.include?(:chef_version)
    options[:chef_version] = chef_version_for_provides
  end

  result = Chef.resource_handler_map.set(name, self, **options, &block)
  Chef::DSL::Resources.add_resource_dsl(name)
  result
end

.provides?(node, resource_name) ⇒ Boolean

Returns:

  • (Boolean)

1389
1390
1391
# File 'lib/chef/resource.rb', line 1389

def self.provides?(node, resource_name)
  Chef::ResourceResolver.new(node, resource_name).provided_by?(self)
end

.resource_for_node(short_name, node) ⇒ Object

Returns a resource based on a short_name and node

Parameters

short_name<Symbol>

short_name of the resource (ie :directory)

node<Chef::Node>

Node object to look up platform and version in

Returns

<Chef::Resource>

returns the proper Chef::Resource class


1579
1580
1581
1582
1583
1584
# File 'lib/chef/resource.rb', line 1579

def self.resource_for_node(short_name, node)
  klass = Chef::ResourceResolver.resolve(short_name, node: node)
  raise Chef::Exceptions::NoSuchResourceType.new(short_name, node) if klass.nil?

  klass
end

.resource_matching_short_name(short_name) ⇒ Object

Returns the class with the given resource_name.

NOTE: Chef::Resource.resource_matching_short_name(:package) returns Chef::Resource::Package, while on rhel the API call Chef::Resource.resource_for_node(:package, node) will return Chef::Resource::YumPackage – which is probably what you really want. This API should most likely be removed or changed to call resource_for_node.

Parameters

short_name<Symbol>

short_name of the resource (ie :directory)

Returns

<Chef::Resource>

returns the proper Chef::Resource class


1601
1602
1603
# File 'lib/chef/resource.rb', line 1601

def self.resource_matching_short_name(short_name)
  Chef::ResourceResolver.resolve(short_name)
end

.resource_name(name = NOT_PASSED) ⇒ Symbol

The display name of this resource type, for printing purposes.

Call `resource_name nil` to remove the resource name

Parameters:

  • value (Symbol)

    The desired name of this resource type (e.g. `execute`), or `nil` if this class is abstract and has no resource_name.

Returns:

  • (Symbol)

    The name of this resource type (e.g. `:execute`).


969
970
971
972
973
974
975
976
977
# File 'lib/chef/resource.rb', line 969

def self.resource_name(name = NOT_PASSED)
  # Setter
  if name != NOT_PASSED
    @resource_name = name.to_sym rescue nil
  end

  @resource_name = nil unless defined?(@resource_name)
  @resource_name
end

.resource_name=(name) ⇒ Object


979
980
981
# File 'lib/chef/resource.rb', line 979

def self.resource_name=(name)
  resource_name(name)
end

.skip_docs(skip_docs = "NOT_PASSED") ⇒ Object


1478
1479
1480
1481
1482
1483
# File 'lib/chef/resource.rb', line 1478

def self.skip_docs(skip_docs = "NOT_PASSED")
  if skip_docs != "NOT_PASSED"
    @skip_docs = skip_docs
  end
  @skip_docs
end

.sorted_descendantsObject


1327
1328
1329
# File 'lib/chef/resource.rb', line 1327

def self.sorted_descendants
  @@sorted_descendants ||= descendants.sort_by(&:to_s)
end

.state_attrs(*names) ⇒ Array<Symbol>

Deprecated.

Use state_properties.keys instead. Note that when you declare properties with `property`: properties are added to state_properties by default, and can be turned off with `desired_state: false`

“`ruby property :x # part of desired state property :y, desired_state: false # not part of desired state “`

Set or return the list of “state properties” implemented by the Resource subclass.

Equivalent to calling #state_properties and getting `state_properties.keys`.

Parameters:

  • names (Array<Symbol>)

    A list of property names to set as desired state.

Returns:

  • (Array<Symbol>)

    All property names with desired state.


808
809
810
# File 'lib/chef/resource.rb', line 808

def self.state_attrs(*names)
  state_properties(*names).map(&:name)
end

.unified_mode(flag = nil) ⇒ Boolean

If the resource's action should run in separated compile/converge mode.

Parameters:

  • flag (Boolean) (defaults to: nil)

    value to set unified_mode to

Returns:

  • (Boolean)

    unified_mode value


987
988
989
990
991
# File 'lib/chef/resource.rb', line 987

def self.unified_mode(flag = nil)
  @unified_mode = Chef::Config[:resource_unified_mode_default] if !defined?(@unified_mode) || @unified_mode.nil?
  @unified_mode = flag unless flag.nil?
  !!@unified_mode
end

.use(partial) ⇒ Object

Use a partial code fragment. This can be used for code sharing between multiple resources.

Do not wrap the code fragment in a class or module. It also does not support the use of super to subclass any methods defined in the fragment, the methods will just be overwritten.

Parameters:

  • partial (String)

    the code fragment to eval against the class


1499
1500
1501
1502
1503
1504
# File 'lib/chef/resource.rb', line 1499

def self.use(partial)
  dirname = ::File.dirname(partial)
  basename = ::File.basename(partial, ".rb")
  basename = basename[1..] if basename.start_with?("_")
  class_eval IO.read(::File.expand_path("#{dirname}/_#{basename}.rb", ::File.dirname(caller_locations.first.absolute_path)))
end

Instance Method Details

#action(arg = nil) ⇒ Array[Symbol]

The action or actions that will be taken when this resource is run.

Parameters:

  • arg (Array[Symbol], Symbol) (defaults to: nil)

    A list of actions (e.g. `:create`)

Returns:

  • (Array[Symbol])

    the list of actions.


150
151
152
153
154
155
156
157
158
159
160
161
162
163
# File 'lib/chef/resource.rb', line 150

def action(arg = nil)
  if arg
    arg = Array(arg).map(&:to_sym)
    arg.each do |action|
      validate(
        { action: action },
        { action: { kind_of: Symbol, equal_to: allowed_actions } }
      )
    end
    @action = arg
  else
    @action
  end
end

#action=Array[Symbol]

The action or actions that will be taken when this resource is run. Alias for normal assignment syntax.

Parameters:

  • arg (Array[Symbol], Symbol)

    A list of actions (e.g. `:create`)

Returns:

  • (Array[Symbol])

    the list of actions.


166
167
168
169
170
171
172
173
174
175
176
177
178
179
# File 'lib/chef/resource.rb', line 166

def action(arg = nil)
  if arg
    arg = Array(arg).map(&:to_sym)
    arg.each do |action|
      validate(
        { action: action },
        { action: { kind_of: Symbol, equal_to: allowed_actions } }
      )
    end
    @action = arg
  else
    @action
  end
end

#action_description(action) ⇒ Object

Retrieve the description for a resource's action, if any description has been included in the definition.

was defined

Parameters:

Returns:

  • the description of the action provided, or nil if no description


1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
# File 'lib/chef/resource.rb', line 1091

def action_description(action)
  provider_for_action(action).class.action_description(action)
rescue Chef::Exceptions::ProviderNotFound
  # If a provider can't be found, there can be no description defined on the provider.
  nil
rescue NameError => e
  # This can happen when attempting to load a provider in a platform-specific
  # environment where we have not required the necessary files yet
  raise unless e.message =~ /uninitialized constant/
end

#after_createdObject

A hook called after a resource is created. Meant to be overridden by subclasses.


955
956
957
# File 'lib/chef/resource.rb', line 955

def after_created
  nil
end

#as_json(*a) ⇒ Object

as_json does most of the to_json heavy lifted. It exists here in case activesupport is loaded. activesupport will call as_json and skip over to_json. This ensure json is encoded as expected


700
701
702
703
704
705
706
707
708
709
710
# File 'lib/chef/resource.rb', line 700

def as_json(*a)
  safe_ivars = instance_variables.map(&:to_sym) - FORBIDDEN_IVARS
  instance_vars = {}
  safe_ivars.each do |iv|
    instance_vars[iv.to_s.sub(/^@/, "")] = instance_variable_get(iv)
  end
  {
    "json_class" => self.class.name,
    "instance_vars" => instance_vars,
  }
end

#before_notificationsObject


1407
1408
1409
# File 'lib/chef/resource.rb', line 1407

def before_notifications
  run_context.before_notifications(self)
end

#compile_timeBoolean

If this is set the resource will be set to run at compile time and the converge time action will be set to :nothing.

Parameters:

  • arg (Boolean)

    Whether or not to force this resource to run at compile time.

Returns:

  • (Boolean)

    Whether or not to force this resource to run at compile time.


447
448
449
# File 'lib/chef/resource.rb', line 447

property :compile_time, [TrueClass, FalseClass],
description: "Determines whether or not the resource is executed during the compile time phase.",
default: false, desired_state: false

#cookbook_versionObject

The cookbook in which this Resource was defined (if any).

Returns:

  • Chef::CookbookVersion The cookbook in which this Resource was defined.


1510
1511
1512
1513
1514
# File 'lib/chef/resource.rb', line 1510

def cookbook_version
  if cookbook_name && cookbook_name != "@recipe_files"
    run_context.cookbook_collection[cookbook_name]
  end
end

#current_valueObject

Get the current actual value of this resource.

This does not cache–a new value will be returned each time.

Returns:

  • A new copy of the resource, with values filled in from the actual current value.


1128
1129
1130
1131
1132
1133
1134
1135
1136
# File 'lib/chef/resource.rb', line 1128

def current_value
  provider = provider_for_action(Array(action).first)
  if provider.whyrun_mode? && !provider.whyrun_supported?
    raise "Cannot retrieve #{self.class.current_resource} in why-run mode: #{provider} does not support why-run"
  end

  provider.load_current_resource
  provider.current_resource
end

#current_value_does_not_exist!Object

Call this in `load_current_value` to indicate that the value does not exist and that `current_resource` should therefore be `nil`.

Raises:

  • Chef::Exceptions::CurrentValueDoesNotExist


1117
1118
1119
# File 'lib/chef/resource.rb', line 1117

def current_value_does_not_exist!
  raise Chef::Exceptions::CurrentValueDoesNotExist
end

#custom_exception_message(e) ⇒ String

Preface an exception message with generic Resource information.

Parameters:

  • e (StandardError)

    An exception with `e.message`

Returns:

  • (String)

    An exception message customized with class name.


1536
1537
1538
# File 'lib/chef/resource.rb', line 1536

def custom_exception_message(e)
  "#{self} (#{defined_at}) had an error: #{e.class.name}: #{e.message}"
end

#customize_exception(e) ⇒ Object


1540
1541
1542
1543
1544
# File 'lib/chef/resource.rb', line 1540

def customize_exception(e)
  new_exception = e.exception(custom_exception_message(e))
  new_exception.set_backtrace(e.backtrace)
  new_exception
end

#declared_keyObject

We usually want to store and reference resources by their declared type and not the actual type that was looked up by the Resolver (IE, “package” becomes YumPackage class). If we have not been provided the declared key we want to fall back on the old to_s key.


1401
1402
1403
1404
1405
# File 'lib/chef/resource.rb', line 1401

def declared_key
  return to_s if declared_type.nil?

  "#{declared_type}[#{@name}]"
end

#defined_atObject


1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
# File 'lib/chef/resource.rb', line 1435

def defined_at
  # The following regexp should match these two sourceline formats:
  #   /some/path/to/file.rb:80:in `wombat_tears'
  #   C:/some/path/to/file.rb:80 in 1`wombat_tears'
  # extracting the path to the source file and the line number.
  if cookbook_name && recipe_name && source_line
    "#{cookbook_name}::#{recipe_name} line #{source_line_number}"
  elsif source_line
    "#{source_line_file} line #{source_line_number}"
  else
    "dynamically defined"
  end
end

#delayed_action(arg) ⇒ Object

Force a delayed notification into this resource's run_context.

This should most likely be paired with action :nothing

Parameters:

  • arg (Array[Symbol], Symbol)

    A list of actions (e.g. `:create`)


175
176
177
178
179
180
181
182
183
184
185
# File 'lib/chef/resource.rb', line 175

def delayed_action(arg)
  arg = Array(arg).map(&:to_sym)
  arg.map do |action|
    validate(
      { action: action },
      { action: { kind_of: Symbol, equal_to: allowed_actions } }
    )
    # the resource effectively sends a delayed notification to itself
    run_context.add_delayed_action(Notification.new(self, action, self, run_context.unified_mode))
  end
end

#delayed_notificationsObject


1415
1416
1417
# File 'lib/chef/resource.rb', line 1415

def delayed_notifications
  run_context.delayed_notifications(self)
end

#eventsObject


1516
1517
1518
# File 'lib/chef/resource.rb', line 1516

def events
  run_context.events
end

#guard_interpreter(arg = nil) ⇒ Class, ...

The guard interpreter that will be used to process `only_if` and `not_if` statements. If left unset, the #default_guard_interpreter will be used.

Must be a resource class like `Chef::Resource::Execute`, or a corresponding to the name of a resource. The resource must descend from `Chef::Resource::Execute`.

TODO this needs to be coerced on input so that retrieval is consistent.

Parameters:

  • arg (Class, Symbol, String) (defaults to: nil)

    The Guard interpreter resource class/ symbol/name.

Returns:

  • (Class, Symbol, String)

    The Guard interpreter resource.


488
489
490
491
492
493
494
# File 'lib/chef/resource.rb', line 488

def guard_interpreter(arg = nil)
  if arg.nil?
    @guard_interpreter || @default_guard_interpreter
  else
    set_or_return(:guard_interpreter, arg, kind_of: Symbol)
  end
end

#identityObject, Hash<Symbol,Object>

The value of the identity of this resource.

  • If there are no identity properties on the resource, `name` is returned.

  • If there is exactly one identity property on the resource, it is returned.

  • If there are more than one, they are returned in a hash.

Returns:

  • (Object, Hash<Symbol,Object>)

    The identity of this resource.


525
526
527
528
529
530
531
532
533
534
# File 'lib/chef/resource.rb', line 525

def identity
  result = {}
  identity_properties = self.class.identity_properties
  identity_properties.each do |property|
    result[property.name] = send(property.name)
  end
  return result.values.first if identity_properties.size == 1

  result
end

#ignore_failureObject

Whether to ignore failures. If set to `true`, and this resource when an action is run, the resource will be marked as failed but no exception will be thrown (and no error will be output). Defaults to `false`. If set to `:quiet` or `'quiet'`, the normal error trace will be suppressed.

TODO ignore_failure and retries seem to be mutually exclusive; I doubt that was intended.

Parameters:

  • arg (Boolean, String, Symbol)

    Whether to ignore failures.

Returns:

  • Whether this resource will ignore failures.


548
# File 'lib/chef/resource.rb', line 548

property :ignore_failure, [ true, false, :quiet, "quiet" ], default: false, desired_state: false

#immediate_notificationsObject


1411
1412
1413
# File 'lib/chef/resource.rb', line 1411

def immediate_notifications
  run_context.immediate_notifications(self)
end

#inspectObject


690
691
692
693
694
695
# File 'lib/chef/resource.rb', line 690

def inspect
  ivars = instance_variables.map(&:to_sym) - FORBIDDEN_IVARS
  ivars.inject("<#{self}") do |str, ivar|
    str << " #{ivar}: #{instance_variable_get(ivar).inspect}"
  end << ">"
end

#load_from(resource) ⇒ Object

Make this resource into an exact (shallow) copy of the other resource.

Parameters:


555
556
557
558
559
560
561
# File 'lib/chef/resource.rb', line 555

def load_from(resource)
  resource.instance_variables.each do |iv|
    unless iv == :@source_line || iv == :@action || iv == :@not_if || iv == :@only_if
      instance_variable_set(iv, resource.instance_variable_get(iv))
    end
  end
end

#lookup_provider_constant(name, action = :nothing) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
# File 'lib/chef/resource.rb', line 1606

def lookup_provider_constant(name, action = :nothing)
  # XXX: "name" is probably a poor choice of name here, ideally this would be nil, but we need to
  # fix resources so that nil or empty names work (also solving the apt_update "doesn't matter one bit"
  # problem).  WARNING: this string is not a public API and should not be referenced (e.g. in provides blocks)
  # and may change at any time.  If you've found this comment you're also probably very lost and should maybe
  # consider using `declare_resource :whatever` instead of trying to set `provider :whatever` on a resource, or in some
  # other way reconsider what you're trying to do, since you're likely trying to force a bad design that we
  # can't/won't support.
  self.class.resource_for_node(name, node).new("name", run_context).provider_for_action(action).class
end

#nameString

The name of this particular resource.

This special resource attribute is set automatically from the declaration of the resource, e.g.

execute 'Vitruvius' do
  command 'ls'
end

Will set the name to “Vitruvius”.

This is also used in to_s to show the resource name, e.g. `execute`.

This is also used for resource notifications and subscribes in the same manner.

This will coerce any object into a string via #to_s. Arrays are a special case so that `package [“foo”, “bar”]` becomes package[foo, bar] instead of the more awkward `package[[“foo”, “bar”]]` that #to_s would produce.

Parameters:

  • name (Object)

    The name to set, typically a String or Array

Returns:

  • (String)

    The name of this Resource.


87
# File 'lib/chef/resource.rb', line 87

property :name, String, coerce: proc { |v| v.is_a?(Array) ? v.join(", ") : v.to_s }, desired_state: false, required: true

#nodeChef::Node

The node the current Chef run is using.

Corresponds to `run_context.node`.

Returns:

  • (Chef::Node)

    The node the current Chef run is using.


96
97
98
# File 'lib/chef/resource.rb', line 96

def node
  run_context && run_context.node
end

#not_if(command = nil, opts = {}, &block) ⇒ Object

A command or block that indicates whether to actually run this resource. The command or block is run just before the action actually executes, and the action will be skipped if the block returns true.

If a block is specified, it must return `false` in order for the Resource to be executed.

If a command is specified, the resource's #guard_interpreter will run the command and interpret the results according to `opts`. For example, the default `execute` resource will be treated as `false` if the command returns a non-zero exit code, and `true` if it returns 0. Thus, in the default case:

  • `not_if “your command”` will perform the action only if `your command`

returns a non-zero code.

  • `only_if “your command”, valid_exit_codes: [ 1, 2, 3 ]` will perform the action only if `your command` returns something other than 1, 2, or 3.

Parameters:

  • command (String) (defaults to: nil)

    A string to execute.

  • opts (Hash) (defaults to: {})

    Options control the execution of the command

  • block (Proc)

    A ruby block to run. Ignored if a command is given.


408
409
410
411
412
413
# File 'lib/chef/resource.rb', line 408

def not_if(command = nil, opts = {}, &block)
  if command || block_given?
    @not_if << Conditional.not_if(self, command, opts, &block)
  end
  @not_if
end

#notifies(action, resource_spec, timing = :delayed) ⇒ Object

Sets up a notification that will run a particular action on another resource if and when this resource is updated by an action.

If the action does not update this resource, the notification never triggers.

Only one resource may be specified per notification.

`delayed` notifications will only ever happen once per resource, so if multiple resources all notify a single resource to perform the same action, the action will only happen once. However, if they ask for different actions, each action will happen once, in the order they were updated.

`immediate` notifications will cause the action to be triggered once per notification, regardless of how many other resources have triggered the notification as well.

Examples:

Resource by string

file '/foo.txt' do
  content 'hi'
  notifies :create, 'file[/bar.txt]'
end
file '/bar.txt' do
  action :nothing
  content 'hi'
end

Resource by hash

file '/foo.txt' do
  content 'hi'
  notifies :create, file: '/bar.txt'
end
file '/bar.txt' do
  action :nothing
  content 'hi'
end

Direct Resource

bar = file '/bar.txt' do
  action :nothing
  content 'hi'
end
file '/foo.txt' do
  content 'hi'
  notifies :create, bar
end

Parameters:

  • action

    The action to run on the other resource.

  • resource_spec (String, Hash, Chef::Resource)

    The resource to run.

  • timing (String, Symbol) (defaults to: :delayed)

    When to notify. Has these values:

    • `delayed`: Will run the action on the other resource after all other actions have been run. This is the default.

    • `immediate`, `immediately`: Will run the action on the other resource immediately (before any other action is run).

    • `before`: Will run the action on the other resource immediately before the action is actually run.


242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
# File 'lib/chef/resource.rb', line 242

def notifies(action, resource_spec, timing = :delayed)
  # when using old-style resources(:template => "/foo.txt") style, you
  # could end up with multiple resources.
  validate_resource_spec!(resource_spec)

  resources = [ resource_spec ].flatten
  resources.each do |resource|

    case timing.to_s
    when "delayed"
      notifies_delayed(action, resource)
    when "immediate", "immediately"
      notifies_immediately(action, resource)
    when "before"
      notifies_before(action, resource)
    else
      raise ArgumentError,  "invalid timing: #{timing} for notifies(#{action}, #{resources.inspect}, #{timing}) resource #{self} "\
        "Valid timings are: :delayed, :immediate, :immediately, :before"
    end
  end

  true
end

#notifies_before(action, resource_spec) ⇒ Object

Helper for #notifies


1293
1294
1295
# File 'lib/chef/resource.rb', line 1293

def notifies_before(action, resource_spec)
  run_context.notifies_before(Notification.new(resource_spec, action, self, run_context.unified_mode))
end

#notifies_delayed(action, resource_spec) ⇒ Object

Helper for #notifies


1303
1304
1305
# File 'lib/chef/resource.rb', line 1303

def notifies_delayed(action, resource_spec)
  run_context.notifies_delayed(Notification.new(resource_spec, action, self, run_context.unified_mode))
end

#notifies_immediately(action, resource_spec) ⇒ Object

Helper for #notifies


1298
1299
1300
# File 'lib/chef/resource.rb', line 1298

def notifies_immediately(action, resource_spec)
  run_context.notifies_immediately(Notification.new(resource_spec, action, self, run_context.unified_mode))
end

#only_if(command = nil, opts = {}, &block) ⇒ Object

A command or block that indicates whether to actually run this resource. The command or block is run just before the action actually executes, and the action will be skipped if the block returns false.

If a block is specified, it must return `true` in order for the Resource to be executed.

If a command is specified, the resource's #guard_interpreter will run the command and interpret the results according to `opts`. For example, the default `execute` resource will be treated as `false` if the command returns a non-zero exit code, and `true` if it returns 0. Thus, in the default case:

  • `only_if “your command”` will perform the action only if `your command`

returns 0.

  • `only_if “your command”, valid_exit_codes: [ 1, 2, 3 ]` will perform the action only if `your command` returns 1, 2, or 3.

Parameters:

  • command (String) (defaults to: nil)

    A string to execute.

  • opts (Hash) (defaults to: {})

    Options control the execution of the command

  • block (Proc)

    A ruby block to run. Ignored if a command is given.


378
379
380
381
382
383
# File 'lib/chef/resource.rb', line 378

def only_if(command = nil, opts = {}, &block)
  if command || block_given?
    @only_if << Conditional.only_if(self, command, opts, &block)
  end
  @only_if
end

#provider(arg = nil) ⇒ Object

The provider class for this resource.

If `action :x do … end` has been declared on this resource or its superclasses, this will return the `action_class`.

If this is not set, `provider_for_action` will dynamically determine the provider.

Parameters:

  • arg (String, Symbol, Class) (defaults to: nil)

    Sets the provider class for this resource. If passed a String or Symbol, e.g. `:file` or `“file”`, looks up the provider based on the name.

Returns:

  • The provider class for this resource.

See Also:


775
776
777
778
779
780
781
782
# File 'lib/chef/resource.rb', line 775

def provider(arg = nil)
  klass = if arg.is_a?(String) || arg.is_a?(Symbol)
            lookup_provider_constant(arg)
          else
            arg
          end
  set_or_return(:provider, klass, kind_of: [ Class ])
end

#provider=(arg) ⇒ Object


784
785
786
# File 'lib/chef/resource.rb', line 784

def provider=(arg)
  provider(arg)
end

#provider_for_action(action) ⇒ Object


1524
1525
1526
1527
1528
1529
# File 'lib/chef/resource.rb', line 1524

def provider_for_action(action)
  provider_class = Chef::ProviderResolver.new(node, self, action).resolve
  provider = provider_class.new(self, run_context)
  provider.action = action
  provider
end

#resolve_notification_references(always_raise = false) ⇒ Object

Iterates over all immediate and delayed notifications, calling resolve_resource_reference on each in turn, causing them to resolve lazy/forward references.


1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
# File 'lib/chef/resource.rb', line 1278

def resolve_notification_references(always_raise = false)
  run_context.before_notifications(self).each do |n|
    n.resolve_resource_reference(run_context.resource_collection, true)
  end

  run_context.immediate_notifications(self).each do |n|
    n.resolve_resource_reference(run_context.resource_collection, always_raise)
  end

  run_context.delayed_notifications(self).each do |n|
    n.resolve_resource_reference(run_context.resource_collection, always_raise)
  end
end

#resource_nameSymbol

The display name of this resource type, for printing purposes.

Will be used to print out the resource in messages, e.g. resource_name

Returns:

  • (Symbol)

    The name of this resource type (e.g. `:execute`).


947
948
949
# File 'lib/chef/resource.rb', line 947

def resource_name
  @resource_name || self.class.resource_name
end

#retriesInteger

The number of times to retry this resource if it fails by throwing an exception while running an action. Default: 0

When the retries have run out, the Resource will throw the last exception.

Parameters:

  • arg (Integer)

    The number of retries.

Returns:

  • (Integer)

    The number of retries.


424
# File 'lib/chef/resource.rb', line 424

property :retries, Integer, default: 0, desired_state: false

#retry_delayInteger

The number of seconds to wait between retries. Default: 2.

Parameters:

  • arg (Integer)

    The number of seconds to wait between retries.

Returns:

  • (Integer)

    The number of seconds to wait between retries.


431
# File 'lib/chef/resource.rb', line 431

property :retry_delay, Integer, default: 2, desired_state: false

#run_action(action, notification_type = nil, notifying_resource = nil) ⇒ Object

Runs the given action on this resource, immediately.

Parameters:

  • action

    The action to run (e.g. `:create`)

  • notification_type (defaults to: nil)

    The notification type that triggered this (if any)

  • notifying_resource (defaults to: nil)

    The resource that triggered this notification (if any)

Raises:

  • Any error that occurs during the actual action.


572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
# File 'lib/chef/resource.rb', line 572

def run_action(action, notification_type = nil, notifying_resource = nil)
  # reset state in case of multiple actions on the same resource.
  @elapsed_time = 0
  start_time = Time.now
  events.resource_action_start(self, action, notification_type, notifying_resource)
  # Try to resolve lazy/forward references in notifications again to handle
  # the case where the resource was defined lazily (ie. in a ruby_block)
  resolve_notification_references
  validate_action(action)

  if Chef::Config[:verbose_logging] || logger.level == :debug
    # This can be noisy
    logger.info("Processing #{self} action #{action} (#{defined_at})")
  end

  # ensure that we don't leave @updated_by_last_action set to true
  # on accident
  updated_by_last_action(false)

  # Don't modify @retries directly and keep it intact, so that the
  # recipe_snippet from ResourceFailureInspector can print the value
  # that was set in the resource block initially.
  remaining_retries = retries

  begin
    return if should_skip?(action)

    with_umask do
      provider_for_action(action).run_action
    end
  rescue StandardError => e
    if ignore_failure
      logger.error("#{custom_exception_message(e)}; ignore_failure is set, continuing")
      events.resource_failed(self, action, e)
    elsif remaining_retries > 0
      events.resource_failed_retriable(self, action, remaining_retries, e)
      remaining_retries -= 1
      logger.info("Retrying execution of #{self}, #{remaining_retries} attempt#{"s" if remaining_retries > 1} left")
      sleep retry_delay
      retry
    else
      events.resource_failed(self, action, e)
      raise customize_exception(e)
    end
  end
ensure
  @elapsed_time = Time.now - start_time
  # Reporting endpoint doesn't accept a negative resource duration so set it to 0.
  # A negative value can occur when a resource changes the system time backwards
  @elapsed_time = 0 if @elapsed_time < 0
  events.resource_completed(self)
end

#sensitiveBoolean

Whether to treat this resource's data as sensitive. If set, no resource data will be displayed in log output.

Parameters:

  • arg (Boolean)

    Whether this resource is sensitive or not.

Returns:

  • (Boolean)

    Whether this resource is sensitive or not.


439
# File 'lib/chef/resource.rb', line 439

property :sensitive, [ TrueClass, FalseClass ], default: false, desired_state: false

#should_skip?(action) ⇒ Boolean

Evaluates not_if and only_if conditionals. Returns a falsey value if any of the conditionals indicate that this resource should be skipped, i.e., if an only_if evaluates to false or a not_if evaluates to true.

If this resource should be skipped, returns the first conditional that “fails” its check. Subsequent conditionals are not evaluated, so in general it's not a good idea to rely on side effects from not_if or only_if commands/blocks being evaluated.

Also skips conditional checking when the action is :nothing

Returns:

  • (Boolean)

1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
# File 'lib/chef/resource.rb', line 1556

def should_skip?(action)
  conditional_action = ConditionalActionNotNothing.new(action)

  conditionals = [ conditional_action ] + only_if + not_if
  conditionals.find do |conditional|
    if conditional.continue?
      false
    else
      events.resource_skipped(self, action, conditional)
      logger.debug("Skipping #{self} due to #{conditional.description}")
      true
    end
  end
end

#source_line_fileObject


1419
1420
1421
1422
1423
1424
1425
# File 'lib/chef/resource.rb', line 1419

def source_line_file
  if source_line
    source_line.match(/(.*):(\d+):?.*$/).to_a[1]
  else
    nil
  end
end

#source_line_numberObject


1427
1428
1429
1430
1431
1432
1433
# File 'lib/chef/resource.rb', line 1427

def source_line_number
  if source_line
    source_line.match(/(.*):(\d+):?.*$/).to_a[2]
  else
    nil
  end
end

#state_for_resource_reporterHash{Symbol => Object}

Get the value of the state attributes in this resource as a hash.

Does not include properties that are not set (unless they are identity properties).

Returns:

  • (Hash{Symbol => Object})

    A Hash of attribute => value for the Resource class's `state_attrs`.


505
506
507
508
509
510
511
512
513
514
# File 'lib/chef/resource.rb', line 505

def state_for_resource_reporter
  state = {}
  state_properties = self.class.state_properties
  state_properties.each do |property|
    if property.is_set?(self)
      state[property.name] = property.sensitive? ? "*sensitive value suppressed*" : send(property.name)
    end
  end
  state
end

#subscribes(action, resources, timing = :delayed) ⇒ Object

Subscribes to updates from other resources, causing a particular action to run on this resource when the other resource is updated.

If multiple resources are specified, this resource action will be run if any of them change.

This notification will only trigger once, no matter how many other resources are updated (or how many actions are run by a particular resource).

Examples:

Resources by string

file '/foo.txt' do
  content 'hi'
  action :nothing
  subscribes :create, 'file[/bar.txt]'
end
file '/bar.txt' do
  content 'hi'
end

Direct resource

bar = file '/bar.txt' do
  content 'hi'
end
file '/foo.txt' do
  content 'hi'
  action :nothing
  subscribes :create, '/bar.txt'
end

Multiple resources by string

file '/foo.txt' do
  content 'hi'
  action :nothing
  subscribes :create, [ 'file[/bar.txt]', 'file[/baz.txt]' ]
end
file '/bar.txt' do
  content 'hi'
end
file '/baz.txt' do
  content 'hi'
end

Multiple resources

bar = file '/bar.txt' do
  content 'hi'
end
baz = file '/bar.txt' do
  content 'hi'
end
file '/foo.txt' do
  content 'hi'
  action :nothing
  subscribes :create, [ bar, baz ]
end

Parameters:

  • action

    The action to run on the other resource.

  • resources (String, Resource, Array[String, Resource])

    The resources to subscribe to.

  • timing (String, Symbol) (defaults to: :delayed)

    When to notify. Has these values:

    • `delayed`: An update will cause the action to run after all other actions have been run. This is the default.

    • `immediate`, `immediately`: The action will run immediately following the other resource being updated.

    • `before`: The action will run immediately before the other resource is updated.


341
342
343
344
345
346
347
348
349
350
351
352
353
# File 'lib/chef/resource.rb', line 341

def subscribes(action, resources, timing = :delayed)
  resources = [resources].flatten
  resources.each do |resource|
    if resource.is_a?(String)
      resource = UnresolvedSubscribes.new(resource, run_context)
    end
    if resource.run_context.nil?
      resource.run_context = run_context
    end
    resource.notifies(action, self, timing)
  end
  true
end

#suppress_up_to_date_messages?Boolean

This is used to suppress the “(up to date)” message in the doc formatter for the log resource (where it is nonsensical).

This is not exactly a private API, but its doubtful there exist many other sane use cases for this.

Returns:

  • (Boolean)

1623
1624
1625
# File 'lib/chef/resource.rb', line 1623

def suppress_up_to_date_messages?
  false
end

#to_hObject Also known as: to_hash


718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
# File 'lib/chef/resource.rb', line 718

def to_h
  # Grab all current state, then any other ivars (backcompat)
  result = {}
  self.class.state_properties.each do |p|
    result[p.name] = p.get(self)
  end
  safe_ivars = instance_variables.map(&:to_sym) - FORBIDDEN_IVARS
  safe_ivars.each do |iv|
    key = iv.to_s.sub(/^@/, "").to_sym
    next if result.key?(key)

    result[key] = instance_variable_get(iv)
  end
  result
end

#to_json(*a) ⇒ Object

Serialize this object as a hash


713
714
715
716
# File 'lib/chef/resource.rb', line 713

def to_json(*a)
  results = as_json
  Chef::JSONCompat.to_json(results, *a)
end

#to_sObject

Generic Ruby and Data Structure Stuff (for user)


651
652
653
# File 'lib/chef/resource.rb', line 651

def to_s
  "#{resource_name}[#{name}]"
end

#to_textObject


655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
# File 'lib/chef/resource.rb', line 655

def to_text
  return "suppressed sensitive resource output" if sensitive

  text = "# Declared in #{@source_line}\n\n"
  text << "#{resource_name}(\"#{name}\") do\n"

  all_props = {}
  self.class.state_properties.map do |p|

    all_props[p.name.to_s] = p.sensitive? ? '"*sensitive value suppressed*"' : value_to_text(p.get(self))
  rescue Chef::Exceptions::ValidationFailed
    # This space left intentionally blank, the property was probably required or had an invalid default.

  end

  ivars = instance_variables.map(&:to_sym) - HIDDEN_IVARS
  ivars.each do |ivar|
    iv = ivar.to_s.sub(/^@/, "")
    if all_props.key?(iv)
      text << "  #{iv} #{all_props[iv]}\n"
    elsif (value = instance_variable_get(ivar)) && !(value.respond_to?(:empty?) && value.empty?)
      text << "  #{iv} #{value_to_text(value)}\n"
    end
  end

  [@not_if, @only_if].flatten.each do |conditional|
    text << "  #{conditional.to_text}\n"
  end
  text << "end\n"
end

#umaskBoolean

Set a umask to be used for the duration of converging the resource. Defaults to `nil`, which means to use the system umask.

Parameters:

  • arg (String)

    The umask to apply while converging the resource.

Returns:

  • (Boolean)

    The umask to apply while converging the resource.


457
458
459
460
# File 'lib/chef/resource.rb', line 457

property :umask, String,
desired_state: false,
introduced: "16.2",
description: "Set a umask to be used for the duration of converging the resource. Defaults to `nil`, which means to use the system umask. Unsupported on Windows because Windows lacks a direct equivalent to UNIX's umask."

#updated?Boolean

Whether or not this resource was updated during an action. If multiple actions are set on the resource, this will be `true` if any action caused an update to happen.

Returns:

  • (Boolean)

    Whether the resource was updated during an action.


913
914
915
# File 'lib/chef/resource.rb', line 913

def updated?
  updated
end

#updated_by_last_action(true_or_false) ⇒ Boolean

Whether or not this resource was updated during the most recent action. This is set to `false` at the beginning of each action.

Parameters:

  • true_or_false (Boolean)

    Whether the resource was updated during the current / most recent action.

Returns:

  • (Boolean)

    Whether the resource was updated during the most recent action.


925
926
927
928
# File 'lib/chef/resource.rb', line 925

def updated_by_last_action(true_or_false)
  @updated ||= true_or_false
  @updated_by_last_action = true_or_false
end

#updated_by_last_action?Boolean

Whether or not this resource was updated during the most recent action. This is set to `false` at the beginning of each action.

Returns:

  • (Boolean)

    Whether the resource was updated during the most recent action.


936
937
938
# File 'lib/chef/resource.rb', line 936

def updated_by_last_action?
  @updated_by_last_action
end

#validate_action(action) ⇒ Object

Raises:

  • (ArgumentError)

1520
1521
1522
# File 'lib/chef/resource.rb', line 1520

def validate_action(action)
  raise ArgumentError, "nil is not a valid action for resource #{self}" if action.nil?
end

#validate_resource_spec!(resource_spec) ⇒ Object

Helper for #notifies


1394
1395
1396
# File 'lib/chef/resource.rb', line 1394

def validate_resource_spec!(resource_spec)
  run_context.resource_collection.validate_lookup_spec!(resource_spec)
end

#value_to_text(value) ⇒ Object


686
687
688
# File 'lib/chef/resource.rb', line 686

def value_to_text(value)
  value.respond_to?(:to_text) ? value.to_text : value.inspect
end

#with_umaskObject


625
626
627
628
629
630
# File 'lib/chef/resource.rb', line 625

def with_umask
  old_value = ::File.umask(umask.oct) if umask
  yield
ensure
  ::File.umask(old_value) if umask
end