Migrate to postgres

config/config.go

@@ -5,14 +5,16 @@ import "flag"
 type Config struct {
 	Port          int    `json:"port"`
 	LogPath       string `json:"logPath"`
-	DatabasePath  string `json:"databasePath"`
+	DatabaseDSN   string `json:"databaseDsn"`
 	AdminPassword string `json:"adminPassword"`
 }
 
 func ParseFlags() Config {
 	port := flag.Int("Port", 8080, "Listen port")
 	logPath := flag.String("LogPath", "logs", "Path to log files")
-	databasePath := flag.String("DatabasePath", "badgerdb", "Path to the database directory")
+	databaseDSN := flag.String("DatabaseDSN",
+		"postgres://admin:password@127.0.0.1:5432/pkstats?sslmode=disable",
+		"PostgreSQL connection string")
 	adminPassword := flag.String("AdminPassword", "", "Admin password for the web interface, disabled if empty")
 
 	flag.Parse()
@@ -20,7 +22,7 @@ func ParseFlags() Config {
 	return Config{
 		Port:          *port,
 		LogPath:       *logPath,
-		DatabasePath:  *databasePath,
+		DatabaseDSN:   *databaseDSN,
 		AdminPassword: *adminPassword,
 	}
 }