115 lines
2.9 KiB
Go
115 lines
2.9 KiB
Go
package logger
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/*
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/*
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Copyright 2024 Jonas Kaninda
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import (
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"fmt"
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"log"
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"os"
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"runtime"
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"strings"
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"github.com/jkaninda/goma-gateway/util"
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)
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type Logger struct {
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msg string
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args interface{}
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}
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// Info returns info log
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func Info(msg string, args ...interface{}) {
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log.SetOutput(getStd(util.GetStringEnv("GOMA_ACCESS_LOG", "/dev/stdout")))
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logWithCaller("INFO", msg, args...)
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}
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// Warn returns warning log
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func Warn(msg string, args ...interface{}) {
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log.SetOutput(getStd(util.GetStringEnv("GOMA_ACCESS_LOG", "/dev/stdout")))
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logWithCaller("WARN", msg, args...)
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}
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// Error logs error messages
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func Error(msg string, args ...interface{}) {
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log.SetOutput(getStd(util.GetStringEnv("GOMA_ERROR_LOG", "/dev/stderr")))
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logWithCaller("ERROR", msg, args...)
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}
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func Fatal(msg string, args ...interface{}) {
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log.SetOutput(os.Stdout)
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logWithCaller("ERROR", msg, args...)
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os.Exit(1)
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}
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func Debug(msg string, args ...interface{}) {
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log.SetOutput(getStd(util.GetStringEnv("GOMA_ACCESS_LOG", "/dev/stdout")))
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logLevel := util.GetStringEnv("GOMA_LOG_LEVEL", "")
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if strings.ToLower(logLevel) == "trace" || strings.ToLower(logLevel) == "debug" {
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logWithCaller("DEBUG", msg, args...)
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}
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}
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func Trace(msg string, args ...interface{}) {
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log.SetOutput(getStd(util.GetStringEnv("GOMA_ACCESS_LOG", "/dev/stdout")))
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logLevel := util.GetStringEnv("GOMA_LOG_LEVEL", "")
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if strings.ToLower(logLevel) == "trace" {
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logWithCaller("DEBUG", msg, args...)
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}
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}
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// Helper function to format and log messages with file and line number
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func logWithCaller(level, msg string, args ...interface{}) {
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// Format message if there are additional arguments
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formattedMessage := msg
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if len(args) > 0 {
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formattedMessage = fmt.Sprintf(msg, args...)
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}
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// Get the caller's file and line number (skip 2 frames)
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_, file, line, ok := runtime.Caller(2)
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if !ok {
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file = "unknown"
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line = 0
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}
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// Log message with caller information if GOMA_LOG_LEVEL is trace
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logLevel := util.GetStringEnv("GOMA_LOG_LEVEL", "")
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if strings.ToLower(logLevel) != "off" {
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if strings.ToLower(logLevel) == "trace" {
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log.Printf("%s: %s (File: %s, Line: %d)\n", level, formattedMessage, file, line)
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} else {
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log.Printf("%s: %s\n", level, formattedMessage)
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}
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}
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}
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func getStd(out string) *os.File {
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switch out {
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case "/dev/stdout":
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return os.Stdout
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case "/dev/stderr":
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return os.Stderr
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case "/dev/stdin":
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return os.Stdin
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default:
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return os.Stdout
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}
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}
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