switch to redis pubsub for ipc

adjust commands to utilize channel names
add new config variables
fix mention race condition

irc/server.go

@@ -36,6 +36,8 @@ import (
 	"github.com/ergochat/ergo/irc/mysql"
 	"github.com/ergochat/ergo/irc/sno"
 	"github.com/ergochat/ergo/irc/utils"
+
+	"github.com/redis/go-redis/v9"
 )
 
 const (
@@ -98,7 +100,7 @@ type Server struct {
 	defcon            atomic.Uint32
 
 	// CEF
-	cefManager *CefConnection
+	redis *redis.Client
 }
 
 // NewServer returns a new Oragono server.
@@ -166,7 +168,12 @@ func (server *Server) Shutdown() {
 func (server *Server) Run() {
 	defer server.Shutdown()
 
-	server.cefManager = cefConnection(server)
+	redisOpts, err := redis.ParseURL(server.Config().Cef.Redis)
+	if err != nil {
+		panic(err)
+	}
+	server.redis = redis.NewClient(redisOpts)
+	startRedis(server)
 
 	for {
 		select {