Add bin and edit workflow

bin/gems/faraday-2.9.0/lib/faraday/utils/headers.rb

@@ -0,0 +1,144 @@
+# frozen_string_literal: true
+
+module Faraday
+  module Utils
+    # A case-insensitive Hash that preserves the original case of a header
+    # when set.
+    #
+    # Adapted from Rack::Utils::HeaderHash
+    class Headers < ::Hash
+      def self.from(value)
+        new(value)
+      end
+
+      def self.allocate
+        new_self = super
+        new_self.initialize_names
+        new_self
+      end
+
+      def initialize(hash = nil)
+        super()
+        @names = {}
+        update(hash || {})
+      end
+
+      def initialize_names
+        @names = {}
+      end
+
+      # on dup/clone, we need to duplicate @names hash
+      def initialize_copy(other)
+        super
+        @names = other.names.dup
+      end
+
+      # need to synchronize concurrent writes to the shared KeyMap
+      keymap_mutex = Mutex.new
+
+      # symbol -> string mapper + cache
+      KeyMap = Hash.new do |map, key|
+        value = if key.respond_to?(:to_str)
+                  key
+                else
+                  key.to_s.split('_') # user_agent: %w(user agent)
+                     .each(&:capitalize!) # => %w(User Agent)
+                     .join('-') # => "User-Agent"
+                end
+        keymap_mutex.synchronize { map[key] = value }
+      end
+      KeyMap[:etag] = 'ETag'
+
+      def [](key)
+        key = KeyMap[key]
+        super(key) || super(@names[key.downcase])
+      end
+
+      def []=(key, val)
+        key = KeyMap[key]
+        key = (@names[key.downcase] ||= key)
+        # join multiple values with a comma
+        val = val.to_ary.join(', ') if val.respond_to?(:to_ary)
+        super(key, val)
+      end
+
+      def fetch(key, *args, &block)
+        key = KeyMap[key]
+        key = @names.fetch(key.downcase, key)
+        super(key, *args, &block)
+      end
+
+      def delete(key)
+        key = KeyMap[key]
+        key = @names[key.downcase]
+        return unless key
+
+        @names.delete key.downcase
+        super(key)
+      end
+
+      def include?(key)
+        @names.include? key.downcase
+      end
+
+      alias has_key? include?
+      alias member? include?
+      alias key? include?
+
+      def merge!(other)
+        other.each { |k, v| self[k] = v }
+        self
+      end
+
+      alias update merge!
+
+      def merge(other)
+        hash = dup
+        hash.merge! other
+      end
+
+      def replace(other)
+        clear
+        @names.clear
+        update other
+        self
+      end
+
+      def to_hash
+        {}.update(self)
+      end
+
+      def parse(header_string)
+        return unless header_string && !header_string.empty?
+
+        headers = header_string.split("\r\n")
+
+        # Find the last set of response headers.
+        start_index = headers.rindex { |x| x.start_with?('HTTP/') } || 0
+        last_response = headers.slice(start_index, headers.size)
+
+        last_response
+          .tap { |a| a.shift if a.first.start_with?('HTTP/') }
+          .map { |h| h.split(/:\s*/, 2) } # split key and value
+          .reject { |p| p[0].nil? } # ignore blank lines
+          .each { |key, value| add_parsed(key, value) }
+      end
+
+      protected
+
+      attr_reader :names
+
+      private
+
+      # Join multiple values with a comma.
+      def add_parsed(key, value)
+        if key?(key)
+          self[key] = self[key].to_s
+          self[key] << ', ' << value
+        else
+          self[key] = value
+        end
+      end
+    end
+  end
+end