refactor: bootstrap (#203)

Author: supercaracal

lib/redis_client/cluster/command.rb

@@ -22,15 +22,15 @@ class Command
 
       class << self
         def load(nodes)
-          errors = []
-          cmd = nil
-          nodes&.each do |node|
-            break unless cmd.nil?
+          cmd = errors = nil
 
+          nodes&.each do |node|
             reply = node.call('COMMAND')
             commands = parse_command_reply(reply)
             cmd = ::RedisClient::Cluster::Command.new(commands)
+            break
           rescue ::RedisClient::Error => e
+            errors ||= []
             errors << e
           end
 

lib/redis_client/cluster/node.rb

@@ -121,10 +121,10 @@ def load_info(options, **kwargs) # rubocop:disable Metrics/AbcSize, Metrics/Cycl
           raise ::RedisClient::Cluster::InitialSetupError, errors if node_info_list.nil?
 
           grouped = node_info_list.compact.group_by do |info_list|
-            info_list
-              .sort_by(&:id)
-              .map { |i| "#{i.id}#{i.node_key}#{i.role}#{i.primary_id}#{i.config_epoch}" }
-              .join
+            info_list.sort_by!(&:id)
+            info_list.each_with_object(String.new(capacity: 128 * info_list.size)) do |e, a|
+              a << e.id << e.node_key << e.role << e.primary_id << e.config_epoch
+            end
           end
 
           grouped.max_by { |_, v| v.size }[1].first