FEATURE: new site setting 'code formatting style'

config/locales/client.en.yml

@@ -1055,6 +1055,7 @@ en:
       quote_text: "Blockquote"
       code_title: "Preformatted text"
       code_text: "indent preformatted text by 4 spaces"
+      paste_code_text: "type or paste code here"
       upload_title: "Upload"
       upload_description: "enter upload description here"
       olist_title: "Numbered List"

config/locales/server.en.yml

@@ -1315,6 +1315,8 @@ en:
     auto_close_messages_post_count: "Maximum number of posts allowed in a message before it is automatically closed (0 to disable)"
     auto_close_topics_post_count: "Maximum number of posts allowed in a topic before it is automatically closed (0 to disable)"
 
+    code_formatting_style: "Code button in composer will default to this code formatting style"
+
     default_email_digest_frequency: "How often users receive summary emails by default."
     default_include_tl0_in_digests: "Include posts from new users in summary emails by default. Users can change this in their preferences."
     default_email_private_messages: "Send an email when someone messages the user by default."

config/site_settings.yml

@@ -511,6 +511,13 @@ posting:
     min: 0
   auto_close_messages_post_count: 500
   auto_close_topics_post_count: 10000
+  code_formatting_style:
+    client: true
+    type: enum
+    default: '4-spaces-indent'
+    choices:
+     - 4-spaces-indent
+     - code-fences
 
 email:
   email_time_window_mins: