Puppet

The plugin form of interfaces requires a small file for each indirection noun of the form:

require 'puppet/application/indirection_base'

class Puppet::Application::Catalog < Puppet::Application::IndirectionBase
end

These share a directory with 1) base class implementations, 2) the actual “interface” implementation.

This has a number of unintended and confusing user-visible consequences (e.g. interface_base shows up in “puppet —help” as a command when it is not, etc.) and asking users to understand / maintain this structure imposes an unnecessary barrier to use / extension of the interface facility.

Therefore, in the integrated version of interfaces:

1) interface_base & indirection_base should be moved to a more appropriate location 2) the “boilerplate” files should be auto-discovered / created by an appropriate hook in core 3) the interface command should be moved into the application directory with agent, etc. 4) this interface-specific application directory should be eliminated