Add bin and edit workflow

bin/gems/jekyll-4.4.1/lib/jekyll/commands/serve/websockets.rb

@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+require "http/parser"
+
+module Jekyll
+  module Commands
+    class Serve
+      # The LiveReload protocol requires the server to serve livereload.js over HTTP
+      # despite the fact that the protocol itself uses WebSockets.  This custom connection
+      # class addresses the dual protocols that the server needs to understand.
+      class HttpAwareConnection < EventMachine::WebSocket::Connection
+        attr_reader :reload_body, :reload_size
+
+        def initialize(_opts)
+          # If EventMachine SSL support on Windows ever gets better, the code below will
+          # set up the reactor to handle SSL
+          #
+          # @ssl_enabled = opts["ssl_cert"] && opts["ssl_key"]
+          # if @ssl_enabled
+          #   em_opts[:tls_options] = {
+          #   :private_key_file => Jekyll.sanitized_path(opts["source"], opts["ssl_key"]),
+          #   :cert_chain_file  => Jekyll.sanitized_path(opts["source"], opts["ssl_cert"])
+          #   }
+          #   em_opts[:secure] = true
+          # end
+
+          # This is too noisy even for --verbose, but uncomment if you need it for
+          # a specific WebSockets issue.  Adding ?LR-verbose=true onto the URL will
+          # enable logging on the client side.
+          # em_opts[:debug] = true
+
+          em_opts = {}
+          super(em_opts)
+
+          reload_file = File.join(Serve.singleton_class::LIVERELOAD_DIR, "livereload.js")
+
+          @reload_body = File.read(reload_file)
+          @reload_size = @reload_body.bytesize
+        end
+
+        # rubocop:disable Metrics/MethodLength
+        def dispatch(data)
+          parser = Http::Parser.new
+          parser << data
+
+          # WebSockets requests will have a Connection: Upgrade header
+          if parser.http_method != "GET" || parser.upgrade?
+            super
+          elsif parser.request_url.start_with?("/livereload.js")
+            headers = [
+              "HTTP/1.1 200 OK",
+              "Content-Type: application/javascript",
+              "Content-Length: #{reload_size}",
+              "",
+              "",
+            ].join("\r\n")
+            send_data(headers)
+
+            # stream_file_data would free us from keeping livereload.js in memory
+            # but JRuby blocks on that call and never returns
+            send_data(reload_body)
+            close_connection_after_writing
+          else
+            body = "This port only serves livereload.js over HTTP.\n"
+            headers = [
+              "HTTP/1.1 400 Bad Request",
+              "Content-Type: text/plain",
+              "Content-Length: #{body.bytesize}",
+              "",
+              "",
+            ].join("\r\n")
+            send_data(headers)
+            send_data(body)
+            close_connection_after_writing
+          end
+        end
+        # rubocop:enable Metrics/MethodLength
+      end
+    end
+  end
+end