85 lines
1.5 KiB
Go
85 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"io"
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"log"
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"os"
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"time"
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)
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type logWriter struct {
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level string
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writer io.Writer
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}
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func (w logWriter) Write(bytes []byte) (int, error) {
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timestamp := time.Now().UTC().Format(time.RFC3339)
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return fmt.Fprintf(w.writer, timestamp + " ["+w.level+"]\t"+string(bytes))
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}
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type logger struct {
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infoLogger *log.Logger
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errorLogger *log.Logger
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debugLogger *log.Logger
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}
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func newLogger(debug bool) *logger {
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infoLogWriter := logWriter{
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level: "INFO",
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writer: os.Stdout,
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}
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infoLogger := log.New(infoLogWriter, "", 0)
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errorLogWriter := logWriter{
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level: "ERROR",
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writer: os.Stderr,
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}
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errorLogger := log.New(errorLogWriter, "", 0)
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var baseDebugWriter io.Writer
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if debug {
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baseDebugWriter = os.Stdout
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} else {
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baseDebugWriter = io.Discard
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}
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debugLogWriter := logWriter{
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level: "DEBUG",
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writer: baseDebugWriter,
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}
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debugLogger := log.New(debugLogWriter, "", log.Lshortfile)
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l := logger{
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infoLogger: infoLogger,
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errorLogger: errorLogger,
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debugLogger: debugLogger,
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}
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return &l
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}
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func (l *logger) Infoln(v ...interface{}) {
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l.infoLogger.Println(v...)
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}
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func (l *logger) Infof(format string, v ...interface{}) {
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l.infoLogger.Printf(format, v...)
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}
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func (l *logger) Errorln(v ...interface{}) {
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l.errorLogger.Fatalln(v...)
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}
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func (l *logger) Errorf(format string, v ...interface{}) {
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l.errorLogger.Fatalf(format, v...)
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}
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func (l *logger) Debugln(v ...interface{}) {
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l.debugLogger.Println(v...)
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}
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func (l *logger) Debugf(format string, v ...interface{}) {
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l.debugLogger.Printf(format, v...)
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}
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