refactor: refactoring of code

pkg/logger/logger.go

@@ -0,0 +1,97 @@
+package logger
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"runtime"
+	"strings"
+)
+
+/*
+MIT License
+
+Copyright (c) 2023 Jonas Kaninda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+// Info returns info log
+func Info(msg string, args ...interface{}) {
+	log.SetOutput(getStd("/dev/stdout"))
+	logWithCaller("INFO", msg, args...)
+
+}
+
+// Warn returns warning log
+func Warn(msg string, args ...interface{}) {
+	log.SetOutput(getStd("/dev/stdout"))
+	logWithCaller("WARN", msg, args...)
+
+}
+
+// Error logs error messages
+func Error(msg string, args ...interface{}) {
+	log.SetOutput(getStd("/dev/stderr"))
+	logWithCaller("ERROR", msg, args...)
+}
+
+func Fatal(msg string, args ...interface{}) {
+	log.SetOutput(os.Stdout)
+	logWithCaller("ERROR", msg, args...)
+	os.Exit(1)
+}
+
+// Helper function to format and log messages with file and line number
+func logWithCaller(level, msg string, args ...interface{}) {
+	// Format message if there are additional arguments
+	formattedMessage := msg
+	if len(args) > 0 {
+		formattedMessage = fmt.Sprintf(msg, args...)
+	}
+
+	// Get the caller's file and line number (skip 2 frames)
+	_, file, line, ok := runtime.Caller(2)
+	if !ok {
+		file = "unknown"
+		line = 0
+	}
+	// Log message with caller information if GOMA_LOG_LEVEL is trace
+	if strings.ToLower(level) != "off" {
+		if strings.ToLower(level) == traceLog {
+			log.Printf("%s: %s (File: %s, Line: %d)\n", level, formattedMessage, file, line)
+		} else {
+			log.Printf("%s: %s\n", level, formattedMessage)
+		}
+	}
+}
+
+func getStd(out string) *os.File {
+	switch out {
+	case "/dev/stdout":
+		return os.Stdout
+	case "/dev/stderr":
+		return os.Stderr
+	case "/dev/stdin":
+		return os.Stdin
+	default:
+		return os.Stdout
+
+	}
+}

pkg/logger/var.go

@@ -0,0 +1,26 @@
+package logger
+
+/*
+MIT License
+
+# Copyright (c) 2023 Jonas Kaninda
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+const traceLog = "trace"