strip logger

debug/log/kubernetes/kubernetes.go

@@ -18,7 +18,10 @@ func (k *klog) Write(l log.Record) error {
 }
 
 func (k *klog) Stream() (log.Stream, error) {
-	return &klogStreamer{}, nil
+	return &klogStreamer{
+		streamChan: make(chan log.Record),
+		stop:       make(chan bool),
+	}, nil
 }
 
 // New returns a configured Kubernetes logger

debug/log/kubernetes/stream.go

@@ -18,17 +18,23 @@ func write(l log.Record) error {
 }
 
 type klogStreamer struct {
+	// the k8s log stream
 	streamChan chan log.Record
+	// the stop chan
+	stop chan bool
 }
 
 func (k *klogStreamer) Chan() <-chan log.Record {
-	if k.streamChan == nil {
-		k.streamChan = make(chan log.Record)
-	}
 	return k.streamChan
 }
 
 func (k *klogStreamer) Stop() error {
+	select {
+	case <-k.stop:
+		return nil
+	default:
+		close(k.stop)
 		close(k.streamChan)
+	}
 	return nil
 }

debug/log/level.go

@@ -1,35 +0,0 @@
-// Package log provides debug logging
-package log
-
-import (
-	"os"
-)
-
-// level is a log level
-type Level int
-
-const (
-	LevelFatal Level = iota
-	LevelError
-	LevelInfo
-	LevelWarn
-	LevelDebug
-	LevelTrace
-)
-
-func init() {
-	switch os.Getenv("MICRO_LOG_LEVEL") {
-	case "trace":
-		DefaultLevel = LevelTrace
-	case "debug":
-		DefaultLevel = LevelDebug
-	case "warn":
-		DefaultLevel = LevelWarn
-	case "info":
-		DefaultLevel = LevelInfo
-	case "error":
-		DefaultLevel = LevelError
-	case "fatal":
-		DefaultLevel = LevelFatal
-	}
-}

debug/log/log.go

@@ -6,17 +6,13 @@ import (
 )
 
 var (
-	// DefaultLog logger
-	DefaultLog = NewLog()
-	// DefaultLevel is default log level
-	DefaultLevel = LevelInfo
 	// Default buffer size if any
 	DefaultSize = 1024
-	// prefix for all messages
-	prefix string
+	// DefaultLog logger
+	DefaultLog = NewLog()
 )
 
-// Log is event log
+// Log is debug log interface for reading and writing logs
 type Log interface {
 	// Read reads log entries from the logger
 	Read(...ReadOption) ([]Record, error)
@@ -36,6 +32,7 @@ type Record struct {
 	Metadata map[string]string `json:"metadata"`
 }
 
+// Stream returns a log stream
 type Stream interface {
 	Chan() <-chan Record
 	Stop() error

debug/log/logger.go

@@ -1,120 +0,0 @@
-// Package log provides debug logging
-package log
-
-import (
-	"fmt"
-	"os"
-)
-
-func log(v ...interface{}) {
-	if len(prefix) > 0 {
-		DefaultLog.Write(Record{Value: fmt.Sprint(append([]interface{}{prefix, " "}, v...)...)})
-		return
-	}
-	DefaultLog.Write(Record{Value: fmt.Sprint(v...)})
-}
-
-func logf(format string, v ...interface{}) {
-	if len(prefix) > 0 {
-		format = prefix + " " + format
-	}
-	DefaultLog.Write(Record{Value: fmt.Sprintf(format, v...)})
-}
-
-// WithLevel logs with the level specified
-func WithLevel(l Level, v ...interface{}) {
-	if l > DefaultLevel {
-		return
-	}
-	log(v...)
-}
-
-// WithLevel logs with the level specified
-func WithLevelf(l Level, format string, v ...interface{}) {
-	if l > DefaultLevel {
-		return
-	}
-	logf(format, v...)
-}
-
-// Trace provides trace level logging
-func Trace(v ...interface{}) {
-	WithLevel(LevelTrace, v...)
-}
-
-// Tracef provides trace level logging
-func Tracef(format string, v ...interface{}) {
-	WithLevelf(LevelTrace, format, v...)
-}
-
-// Debug provides debug level logging
-func Debug(v ...interface{}) {
-	WithLevel(LevelDebug, v...)
-}
-
-// Debugf provides debug level logging
-func Debugf(format string, v ...interface{}) {
-	WithLevelf(LevelDebug, format, v...)
-}
-
-// Warn provides warn level logging
-func Warn(v ...interface{}) {
-	WithLevel(LevelWarn, v...)
-}
-
-// Warnf provides warn level logging
-func Warnf(format string, v ...interface{}) {
-	WithLevelf(LevelWarn, format, v...)
-}
-
-// Info provides info level logging
-func Info(v ...interface{}) {
-	WithLevel(LevelInfo, v...)
-}
-
-// Infof provides info level logging
-func Infof(format string, v ...interface{}) {
-	WithLevelf(LevelInfo, format, v...)
-}
-
-// Error provides warn level logging
-func Error(v ...interface{}) {
-	WithLevel(LevelError, v...)
-}
-
-// Errorf provides warn level logging
-func Errorf(format string, v ...interface{}) {
-	WithLevelf(LevelError, format, v...)
-}
-
-// Fatal logs with Log and then exits with os.Exit(1)
-func Fatal(v ...interface{}) {
-	WithLevel(LevelFatal, v...)
-	os.Exit(1)
-}
-
-// Fatalf logs with Logf and then exits with os.Exit(1)
-func Fatalf(format string, v ...interface{}) {
-	WithLevelf(LevelFatal, format, v...)
-	os.Exit(1)
-}
-
-// SetLevel sets the log level
-func SetLevel(l Level) {
-	DefaultLevel = l
-}
-
-// GetLevel returns the current level
-func GetLevel() Level {
-	return DefaultLevel
-}
-
-// Set a prefix for the logger
-func SetPrefix(p string) {
-	prefix = p
-}
-
-// Set service name
-func SetName(name string) {
-	prefix = fmt.Sprintf("[%s]", name)
-}