Add ability to override config file

TODO.md

@@ -4,8 +4,9 @@ List of things to add to this project
 * Make scram configurable
 * Use reflection in config loading
 * Check export function for improvements
-* Improve viewing of data (textarea over raw API requests)
+* Improve viewing of days (textarea over raw API requests), add notes to frontend
 * More slog.Debug and a debug flag?
 * Think about timezones
 * Consider more secure auth methods
 * *Go* dependency-less? <-- this is a terrible idea
+* Better visual feedback from JS?

flags.go

@@ -2,14 +2,23 @@ package main
 
 import (
 	"flag"
+	"log"
 )
 
 func FlagInit() {
+	config := flag.String("config", "", "override config file")
 	username := flag.String("user", "", "override username")
 	password := flag.String("pass", "", "override password")
 	port := flag.Int("port", 0, "override port")
 
 	flag.Parse()
+	if *config != "" {
+		ConfigFile = *config
+		err := Cfg.Reload()
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
 	if *username != "" {
 		Cfg.Username = *username
 	}