From dfed95a0aeeed0d455fde7f20efeceb5e1646c34 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorben=20G=C3=BCnther?= <admin@xenrox.net>
Date: Sun, 9 Oct 2022 03:04:07 +0200
Subject: [PATCH] Add function to parse level from string

---
 log.go | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/log.go b/log.go
index 1082f38..3776a3c 100644
--- a/log.go
+++ b/log.go
@@ -1,9 +1,12 @@
 package log
 
 import (
+	"errors"
+	"fmt"
 	"io"
 	"log"
 	"os"
+	"strings"
 )
 
 type Level int
@@ -15,6 +18,8 @@ const (
 	Debug
 )
 
+var ErrInvalidLevel = errors.New("cannot parse log-level from string")
+
 type Logger struct {
 	*log.Logger
 	level Level
@@ -32,6 +37,23 @@ func (l *Logger) SetLevel(level Level) {
 	l.level = level
 }
 
+func (l *Logger) ParseLevel(level string) error {
+	switch strings.ToLower(level) {
+	case "error":
+		l.level = Error
+	case "warning":
+		l.level = Warning
+	case "info":
+		l.level = Info
+	case "debug":
+		l.level = Debug
+	default:
+		return fmt.Errorf("%w: %s", ErrInvalidLevel, level)
+	}
+
+	return nil
+}
+
 func (l *Logger) Fatalf(format string, v ...interface{}) {
 	format = "FATAL: " + format
 	l.Logger.Fatalf(format, v...)
-- 
2.44.0