Add bin and edit workflow

bin/gems/faraday-2.9.0/lib/faraday/middleware_registry.rb

@@ -0,0 +1,83 @@
+# frozen_string_literal: true
+
+require 'monitor'
+
+module Faraday
+  # Adds the ability for other modules to register and lookup
+  # middleware classes.
+  module MiddlewareRegistry
+    def registered_middleware
+      @registered_middleware ||= {}
+    end
+
+    # Register middleware class(es) on the current module.
+    #
+    # @param mappings [Hash] Middleware mappings from a lookup symbol to a middleware class.
+    # @return [void]
+    #
+    # @example Lookup by a constant
+    #
+    #   module Faraday
+    #     class Whatever < Middleware
+    #       # Middleware looked up by :foo returns Faraday::Whatever::Foo.
+    #       register_middleware(foo: Whatever)
+    #     end
+    #   end
+    def register_middleware(**mappings)
+      middleware_mutex do
+        registered_middleware.update(mappings)
+      end
+    end
+
+    # Unregister a previously registered middleware class.
+    #
+    # @param key [Symbol] key for the registered middleware.
+    def unregister_middleware(key)
+      registered_middleware.delete(key)
+    end
+
+    # Lookup middleware class with a registered Symbol shortcut.
+    #
+    # @param key [Symbol] key for the registered middleware.
+    # @return [Class] a middleware Class.
+    # @raise [Faraday::Error] if given key is not registered
+    #
+    # @example
+    #
+    #   module Faraday
+    #     class Whatever < Middleware
+    #       register_middleware(foo: Whatever)
+    #     end
+    #   end
+    #
+    #   Faraday::Middleware.lookup_middleware(:foo)
+    #   # => Faraday::Whatever
+    def lookup_middleware(key)
+      load_middleware(key) ||
+        raise(Faraday::Error, "#{key.inspect} is not registered on #{self}")
+    end
+
+    private
+
+    def middleware_mutex(&block)
+      @middleware_mutex ||= Monitor.new
+      @middleware_mutex.synchronize(&block)
+    end
+
+    def load_middleware(key)
+      value = registered_middleware[key]
+      case value
+      when Module
+        value
+      when Symbol, String
+        middleware_mutex do
+          @registered_middleware[key] = const_get(value)
+        end
+      when Proc
+        middleware_mutex do
+          @registered_middleware[key] = value.call
+        end
+      end
+    end
+  end
+end