[WIP] migration to psql

TODO:
[ ] stats
[ ] indexes

main.go

@@ -15,7 +15,9 @@ import (
 func main() {
 	var (
 		httpAddr     = flag.String("addr", ":8080", "HTTP service address")
-		dbIP         = flag.String("db-ip", "127.0.0.1", "IP address of the database")
+		dbAddr       = flag.String("db-addr", "localhost:5432", "IP address of the database")
+		dbUser       = flag.String("db-user", "", "User name to access the database")
+		dbPassword   = flag.String("db-password", "", "Password to access the database")
 		dbName       = flag.String("db-name", "trantor", "Name of the database")
 		storePath    = flag.String("store", "store", "Path of the books storage")
 		assetsPath   = flag.String("assets", ".", "Path of the assets (templates, css, js, img)")
@@ -32,7 +34,16 @@ func main() {
 	}
 	log.Info("Start the imperial library of trantor")
 
-	db := database.Init(*dbIP, *dbName)
+	db, err := database.Init(database.Options{
+		Addr:     *dbAddr,
+		User:     *dbUser,
+		Password: *dbPassword,
+		Name:     *dbName,
+	})
+	if err != nil {
+		log.Critical("Problem initializing database: ", err)
+		os.Exit(1)
+	}
 	defer db.Close()
 
 	store, err := storage.Init(*storePath)