Introduce private from_ruby_version method to reduce duplication

lib/httparty/connection_adapter.rb

@@ -118,7 +118,7 @@ def connection
         http.open_timeout = options[:timeout]
         http.read_timeout = options[:timeout]
 
-        if RUBY_VERSION >= "2.6.0"
+        from_ruby_version('2.6.0', option: :write_timeout, warn: false) do
           http.write_timeout = options[:timeout]
         end
       end
@@ -132,10 +132,8 @@ def connection
       end
 
       if add_timeout?(options[:write_timeout])
-        if RUBY_VERSION >= "2.6.0"
+        from_ruby_version('2.6.0', option: :write_timeout) do
           http.write_timeout = options[:write_timeout]
-        else
-          Kernel.warn("Warning: option :write_timeout requires Ruby version 2.6.0 or later")
         end
       end
 
@@ -151,18 +149,14 @@ def connection
       #
       # @see https://bugs.ruby-lang.org/issues/6617
       if options[:local_host]
-        if RUBY_VERSION >= "2.0.0"
+        from_ruby_version('2.0.0', option: :local_host) do
           http.local_host = options[:local_host]
-        else
-          Kernel.warn("Warning: option :local_host requires Ruby version 2.0 or later")
         end
       end
 
       if options[:local_port]
-        if RUBY_VERSION >= "2.0.0"
+        from_ruby_version('2.0.0', option: :local_port) do
           http.local_port = options[:local_port]
-        else
-          Kernel.warn("Warning: option :local_port requires Ruby version 2.0 or later")
         end
       end
 
@@ -171,6 +165,14 @@ def connection
 
     private
 
+    def from_ruby_version(ruby_version, option:, warn: true)
+      if RUBY_VERSION >= ruby_version
+        yield
+      elsif warn
+        Kernel.warn("Warning: option #{ option } requires Ruby version #{ ruby_version } or later")
+      end
+    end
+
     def add_timeout?(timeout)
       timeout && (timeout.is_a?(Integer) || timeout.is_a?(Float))
     end