cmd: Configure logging before any log messages

src/github.com/matrix-org/dendrite/cmd/dendrite-clientapi/main.go

@@ -16,11 +16,12 @@ import (
 )
 
 func main() {
+	common.SetupLogging(os.Getenv("LOG_DIR"))
+
 	bindAddr := os.Getenv("BIND_ADDRESS")
 	if bindAddr == "" {
 		log.Panic("No BIND_ADDRESS environment variable found.")
 	}
-	common.SetupLogging(os.Getenv("LOG_DIR"))
 
 	// TODO: Rather than generating a new key on every startup, we should be
 	//       reading a PEM formatted file instead.

src/github.com/matrix-org/dendrite/cmd/dendrite-sync-server/main.go

@@ -34,6 +34,8 @@ func loadConfig(configPath string) (*config.Sync, error) {
 }
 
 func main() {
+	common.SetupLogging(os.Getenv("LOG_DIR"))
+
 	flag.Parse()
 
 	if *configPath == "" {
@@ -47,7 +49,6 @@ func main() {
 	if *bindAddr == "" {
 		log.Fatal("--listen must be supplied")
 	}
-	common.SetupLogging(os.Getenv("LOG_DIR"))
 
 	log.Info("sync server config: ", cfg)