Add log => go-log

util/log/README.md

@@ -0,0 +1,17 @@
+# Log
+
+This is the global logger for all micro based libraries which makes use of [github.com/go-log/log](https://github.com/go-log/log). 
+
+It defaults the logger to the stdlib log implementation. 
+
+## Set Logger
+
+Set the logger for micro libraries
+
+```go
+// import micro/go-log
+import "github.com/micro/go-micro/util/log"
+
+// SetLogger expects github.com/go-log/log.Logger interface
+log.SetLogger(mylogger)
+```

util/log/log.go

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+// Package log is a global internal logger
+package log
+
+import (
+	"os"
+
+	"github.com/go-log/log"
+	golog "github.com/go-log/log/log"
+)
+
+var (
+	// the local logger
+	logger log.Logger = golog.New()
+)
+
+// Log makes use of github.com/go-log/log.Log
+func Log(v ...interface{}) {
+	logger.Log(v...)
+}
+
+// Logf makes use of github.com/go-log/log.Logf
+func Logf(format string, v ...interface{}) {
+	logger.Logf(format, v...)
+}
+
+// Fatal logs with Log and then exits with os.Exit(1)
+func Fatal(v ...interface{}) {
+	Log(v...)
+	os.Exit(1)
+}
+
+// Fatalf logs with Logf and then exits with os.Exit(1)
+func Fatalf(format string, v ...interface{}) {
+	Logf(format, v...)
+	os.Exit(1)
+}
+
+// SetLogger sets the local logger
+func SetLogger(l log.Logger) {
+	logger = l
+}