Environments

[faultyserver]

Implement a more solid Environment system by considering them as first class citizens.

Environment are specified in environments/, and can be defined with a fairly simple class definition

# in environments/new_environment.rb
class NewEnvironment < Shark::Environment
  # Register the name of the environment used to reference it from the
  # command line. Multiple names can be registered using repeated calls.
  cli_name :new_env
  cli_name :other_name

  # Environments also provide 4 hookable methods: configure, load,
  # finalize, and start. Each method has `before` and `after` hooks. This
  # example modifies the middleware list before it is finalized into a stack.
  before(:finalize) do
    # Remove all middlewares of a given type.
    remove_middleware Transport
    # Add new middlewares anywhere in the list. This example inserts a
    # middleware immediately after the Agency.
    insert_middleware NewMiddleware, after: Shark::Agency
  end
end

Running the system with this environment is done with the --environment or -e options on the command line:

$ bin/shark -e new_env

More functionality will likely be added in the future. However, this is now a working feature, so it can be merged immediately.