Find a way to pass information from the manifest to the `get` method.

[DavidS]

Example for how this is currently used/implemented:

https://github.com/puppetlabs/puppetlabs-sqlserver/blob/b36eecf3fdadb3d45c9691fcac2e92c66fa3ad30/lib/puppet/provider/sqlserver_tsql/mssql.rb#L16-L26

  def get_config(instance = resource[:instance])
    config_resc = resource.catalog.resources.find do |resc|
      resc.title =~ %r{Sqlserver::Config} &&
        resc.original_parameters[:instance_name] =~ %r{#{instance}}i
    end
    if config_resc.nil?
      raise("Sqlserver_tsql[#{resource.title}] was unable to retrieve the config, please ensure the catalog contains sqlserver::config{'#{resource[:instance]}':}")
    end


    config_resc.original_parameters
  end

Puppet::Type's resource.catalog.resources provides access to other resources in the current catalog.

Possible implementation:

• Add a raw_catalog_access feature flag to

  puppet-resource_api/lib/puppet/resource_api/type_definition.rb

  Line 37 in bd93dba

  supported_features = %w[supports_noop canonicalize remote_resource simple_get_filter].freeze

• add catalog accessor to

  puppet-resource_api/lib/puppet/resource_api/base_context.rb

  Line 13 in bd93dba

  def initialize(definition)

• pass reference to resource.catalog to context every time one is created iff the raw_catalog_access feature is declared on the type definition

  • puppet-resource_api/lib/puppet/resource_api.rb

    Lines 428 to 434 in bd93dba

    	define_singleton_method(:context) do
    	@context ||= PuppetContext.new(TypeDefinition.new(definition))
    	end
    	def context
    	self.class.context
    	end

    - might need additional changes if resource.catalog is not available at the class level
  • add pass through here:

    puppet-resource_api/lib/puppet/resource_api/io_context.rb

    Line 8 in bd93dba

    def initialize(definition, target = $stderr, transport = nil)

• adjust testing for these changes
• update docs

[chadh]

I don't need full manifest information, but I would love the get() method for a resource to be able to get the full context on all of that type of resource specified in the manifest. With simple_get_filter I can get a list of resource names, but not the arguments.

My use case is the puppetlabs-git git_config provider. The get() method would ostensibly be able to enumerate all git configs on a system, but the provider supports setting git configs per user. So enumerating all configs means iterating over all users, which in some environments is not an option. If the set of resources from the catalog was available, I could at least enumerate the current status of those. I realize this means that we can't ensure absent in an idempotent manner. It would also allow me to match the functionality of the low-level provider (which specifies value(), value=(), and mk_resource_methods()).

[chadh]

my use case above does not apply here after all. I misunderstood that name and names parameters are actually hashes with all namevars, which is sufficient for my case.

[DavidS]

Edited the description with a possible implementation path.

[kreeuwijk]

Implemented in #284