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require 'action_dispatch'
module Rails
class Application
class MetalLoader
attr_reader :paths, :metals
def initialize
@paths, @metals = [], []
end
def build_middleware(list=nil)
load_metals!(list)
self
end
def new(app)
ActionDispatch::Cascade.new(@metals, app)
end
def name
ActionDispatch::Cascade.name
end
alias :to_s :name
protected
def load_metals!(list)
metals = []
list = Array(list || :all).map(&:to_sym)
paths.each do |path|
matcher = /\A#{Regexp.escape(path)}\/(.*)\.rb\Z/
Dir.glob("#{path}/**/*.rb").sort.each do |metal_path|
metal = metal_path.sub(matcher, '\1').to_sym
next unless list.include?(metal) || list.include?(:all)
require_dependency metal.to_s
metals << metal
end
end
metals = metals.sort_by do |m|
[list.index(m) || list.index(:all), m.to_s]
end
@metals = metals.map { |m| m.to_s.camelize.constantize }
end
end
end
end
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