irc: read local variable "autorejoin" in buffer to override server option "autorejoin" (task #12256)

src/plugins/irc/irc-config.c

@@ -1631,7 +1631,10 @@ irc_config_server_new_option (struct t_config_file *config_file,
             new_option = weechat_config_new_option (
                 config_file, section,
                 option_name, "boolean",
-                N_("automatically rejoin channels after kick"),
+                N_("automatically rejoin channels after kick; you can define "
+                   "a buffer local variable on a channel to override this "
+                   "value (name of variable: \"autorejoin\", value: \"on\" or "
+                   "\"off\")"),
                 NULL, 0, 0,
                 default_value, value,
                 null_value_allowed,

src/plugins/irc/irc-protocol.c

@@ -631,6 +631,8 @@ IRC_PROTOCOL_CALLBACK(join)
 IRC_PROTOCOL_CALLBACK(kick)
 {
     char *pos_comment;
+    const char *ptr_autorejoin;
+    int rejoin;
     struct t_irc_channel *ptr_channel;
     struct t_irc_nick *ptr_nick, *ptr_nick_kicked;
 
@@ -696,7 +698,20 @@ IRC_PROTOCOL_CALLBACK(kick)
          * more
          */
         irc_nick_free_all (server, ptr_channel);
-        if (IRC_SERVER_OPTION_INTEGER(server, IRC_SERVER_OPTION_AUTOREJOIN))
+
+        /* read option "autorejoin" in server */
+        rejoin = IRC_SERVER_OPTION_BOOLEAN(server, IRC_SERVER_OPTION_AUTOREJOIN);
+
+        /*
+         * if buffer has a local variable "autorejoin", use it
+         * (it has higher priority than server option
+         */
+        ptr_autorejoin = weechat_buffer_get_string (ptr_channel->buffer,
+                                                    "localvar_autorejoin");
+        if (ptr_autorejoin)
+            rejoin = weechat_config_string_to_boolean (ptr_autorejoin);
+
+        if (rejoin)
         {
             if (IRC_SERVER_OPTION_INTEGER(server, IRC_SERVER_OPTION_AUTOREJOIN_DELAY) == 0)
             {