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require 'delegate'
module ActionDispatch
module Routing
class RouteWrapper < SimpleDelegator
def endpoint
rack_app ? rack_app.inspect : "#{controller}##{action}"
end
def constraints
requirements.except(:controller, :action)
end
def rack_app(app = self.app)
@rack_app ||= begin
class_name = app.class.name.to_s
if class_name == "ActionDispatch::Routing::Mapper::Constraints"
rack_app(app.app)
elsif ActionDispatch::Routing::Redirect === app || class_name !~ /^ActionDispatch::Routing/
app
end
end
end
def verb
super.source.gsub(/[$^]/, '')
end
def path
super.spec.to_s
end
def name
super.to_s
end
def reqs
@reqs ||= begin
reqs = endpoint
reqs += " #{constraints.to_s}" unless constraints.empty?
reqs
end
end
def controller
requirements[:controller] || ':controller'
end
def action
requirements[:action] || ':action'
end
def internal?
controller =~ %r{\Arails/(info|welcome)} || path =~ %r{\A#{Rails.application.config.assets.prefix}}
end
def engine?
rack_app && rack_app.respond_to?(:routes)
end
end
##
# This class is just used for displaying route information when someone
# executes `rake routes`. People should not use this class.
class RoutesInspector # :nodoc:
def initialize
@engines = Hash.new
end
def format(all_routes, filter = nil)
if filter
all_routes = all_routes.select{ |route| route.defaults[:controller] == filter }
end
routes = collect_routes(all_routes)
formatted_routes(routes) +
formatted_routes_for_engines
end
def collect_routes(routes)
routes = routes.collect do |route|
RouteWrapper.new(route)
end.reject do |route|
route.internal?
end.collect do |route|
collect_engine_routes(route)
{ name: route.name, verb: route.verb, path: route.path, reqs: route.reqs }
end
end
def collect_engine_routes(route)
name = route.endpoint
return unless route.engine?
return if @engines[name]
routes = route.rack_app.routes
if routes.is_a?(ActionDispatch::Routing::RouteSet)
@engines[name] = collect_routes(routes.routes)
end
end
def formatted_routes_for_engines
@engines.map do |name, routes|
["\nRoutes for #{name}:"] + formatted_routes(routes)
end.flatten
end
def formatted_routes(routes)
name_width = routes.map{ |r| r[:name].length }.max
verb_width = routes.map{ |r| r[:verb].length }.max
path_width = routes.map{ |r| r[:path].length }.max
routes.map do |r|
"#{r[:name].rjust(name_width)} #{r[:verb].ljust(verb_width)} #{r[:path].ljust(path_width)} #{r[:reqs]}"
end
end
end
end
end
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