114 lines
2.5 KiB
Go
114 lines
2.5 KiB
Go
package bbolt
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// See https://github.com/etcd-io/raft/blob/main/logger.go
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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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)
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type Logger interface {
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Debug(v ...interface{})
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Debugf(format string, v ...interface{})
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Error(v ...interface{})
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Errorf(format string, v ...interface{})
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Info(v ...interface{})
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Infof(format string, v ...interface{})
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Warning(v ...interface{})
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Warningf(format string, v ...interface{})
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Fatal(v ...interface{})
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Fatalf(format string, v ...interface{})
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Panic(v ...interface{})
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Panicf(format string, v ...interface{})
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}
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func getDiscardLogger() Logger {
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return discardLogger
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}
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var (
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discardLogger = &DefaultLogger{Logger: log.New(io.Discard, "", 0)}
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)
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const (
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calldepth = 2
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)
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// DefaultLogger is a default implementation of the Logger interface.
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type DefaultLogger struct {
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*log.Logger
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debug bool
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}
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func (l *DefaultLogger) EnableTimestamps() {
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l.SetFlags(l.Flags() | log.Ldate | log.Ltime)
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}
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func (l *DefaultLogger) EnableDebug() {
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l.debug = true
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}
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func (l *DefaultLogger) Debug(v ...interface{}) {
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if l.debug {
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_ = l.Output(calldepth, header("DEBUG", fmt.Sprint(v...)))
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}
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}
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func (l *DefaultLogger) Debugf(format string, v ...interface{}) {
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if l.debug {
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_ = l.Output(calldepth, header("DEBUG", fmt.Sprintf(format, v...)))
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}
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}
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func (l *DefaultLogger) Info(v ...interface{}) {
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_ = l.Output(calldepth, header("INFO", fmt.Sprint(v...)))
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}
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func (l *DefaultLogger) Infof(format string, v ...interface{}) {
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_ = l.Output(calldepth, header("INFO", fmt.Sprintf(format, v...)))
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}
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func (l *DefaultLogger) Error(v ...interface{}) {
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_ = l.Output(calldepth, header("ERROR", fmt.Sprint(v...)))
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}
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func (l *DefaultLogger) Errorf(format string, v ...interface{}) {
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_ = l.Output(calldepth, header("ERROR", fmt.Sprintf(format, v...)))
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}
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func (l *DefaultLogger) Warning(v ...interface{}) {
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_ = l.Output(calldepth, header("WARN", fmt.Sprint(v...)))
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}
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func (l *DefaultLogger) Warningf(format string, v ...interface{}) {
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_ = l.Output(calldepth, header("WARN", fmt.Sprintf(format, v...)))
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}
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func (l *DefaultLogger) Fatal(v ...interface{}) {
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_ = l.Output(calldepth, header("FATAL", fmt.Sprint(v...)))
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os.Exit(1)
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}
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func (l *DefaultLogger) Fatalf(format string, v ...interface{}) {
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_ = l.Output(calldepth, header("FATAL", fmt.Sprintf(format, v...)))
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os.Exit(1)
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}
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func (l *DefaultLogger) Panic(v ...interface{}) {
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l.Logger.Panic(v...)
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}
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func (l *DefaultLogger) Panicf(format string, v ...interface{}) {
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l.Logger.Panicf(format, v...)
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}
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func header(lvl, msg string) string {
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return fmt.Sprintf("%s: %s", lvl, msg)
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}
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