Deprecate QUIT (redis#11439)

Clients should not use this command.
Instead, clients should simply close the connection when they're not used anymore.
Terminating a connection on the client side is preferable, as it eliminates `TIME_WAIT`
lingering sockets on the server side.

Author: zuiderkwast

src/commands.c

@@ -7164,7 +7164,7 @@ struct redisCommand redisCommandTable[] = {
 {"echo","Echo the given string","O(1)","1.0.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_CONNECTION,ECHO_History,ECHO_tips,echoCommand,2,CMD_LOADING|CMD_STALE|CMD_FAST,ACL_CATEGORY_CONNECTION,.args=ECHO_Args},
 {"hello","Handshake with Redis","O(1)","6.0.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_CONNECTION,HELLO_History,HELLO_tips,helloCommand,-1,CMD_NOSCRIPT|CMD_LOADING|CMD_STALE|CMD_FAST|CMD_NO_AUTH|CMD_SENTINEL|CMD_ALLOW_BUSY,ACL_CATEGORY_CONNECTION,.args=HELLO_Args},
 {"ping","Ping the server","O(1)","1.0.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_CONNECTION,PING_History,PING_tips,pingCommand,-1,CMD_FAST|CMD_SENTINEL,ACL_CATEGORY_CONNECTION,.args=PING_Args},
-{"quit","Close the connection","O(1)","1.0.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_CONNECTION,QUIT_History,QUIT_tips,quitCommand,-1,CMD_ALLOW_BUSY|CMD_NOSCRIPT|CMD_LOADING|CMD_STALE|CMD_FAST|CMD_NO_AUTH,ACL_CATEGORY_CONNECTION},
+{"quit","Close the connection","O(1)","1.0.0",CMD_DOC_DEPRECATED,"just closing the connection","7.2.0",COMMAND_GROUP_CONNECTION,QUIT_History,QUIT_tips,quitCommand,-1,CMD_ALLOW_BUSY|CMD_NOSCRIPT|CMD_LOADING|CMD_STALE|CMD_FAST|CMD_NO_AUTH,ACL_CATEGORY_CONNECTION},
 {"reset","Reset the connection","O(1)","6.2.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_CONNECTION,RESET_History,RESET_tips,resetCommand,1,CMD_NOSCRIPT|CMD_LOADING|CMD_STALE|CMD_FAST|CMD_NO_AUTH|CMD_ALLOW_BUSY,ACL_CATEGORY_CONNECTION},
 {"select","Change the selected database for the current connection","O(1)","1.0.0",CMD_DOC_NONE,NULL,NULL,COMMAND_GROUP_CONNECTION,SELECT_History,SELECT_tips,selectCommand,2,CMD_LOADING|CMD_STALE|CMD_FAST,ACL_CATEGORY_CONNECTION,.args=SELECT_Args},
 /* generic */

src/commands/quit.json

@@ -6,6 +6,11 @@
         "since": "1.0.0",
         "arity": -1,
         "function": "quitCommand",
+        "deprecated_since": "7.2.0",
+        "replaced_by": "just closing the connection",
+        "doc_flags": [
+            "DEPRECATED"
+        ],
         "command_flags": [
             "ALLOW_BUSY",
             "NOSCRIPT",