[LOGGER] Add options

default.go

@@ -1,6 +1,10 @@
 package logger
 
-import "log"
+import (
+	"log"
+
+	"github.com/graphmetrics/logger-go/options"
+)
 
 type defaultLogger struct {
 }
@@ -15,7 +19,6 @@ func (*defaultLogger) Debug(msg string, metadata map[string]interface{}) {
 
 func (*defaultLogger) Info(msg string, metadata map[string]interface{}) {
 	log.Printf("[INFO] %s %#v", msg, metadata)
-
 }
 
 func (*defaultLogger) Warn(msg string, metadata map[string]interface{}) {
@@ -25,3 +28,7 @@ func (*defaultLogger) Warn(msg string, metadata map[string]interface{}) {
 func (*defaultLogger) Error(msg string, metadata map[string]interface{}) {
 	log.Printf("[ERROR] %s %#v", msg, metadata)
 }
+
+func (*defaultLogger) WithOptions(...options.LoggerOption) Logger {
+	return &defaultLogger{}
+}

interface.go

@@ -1,8 +1,11 @@
 package logger
 
+import "github.com/graphmetrics/logger-go/options"
+
 type Logger interface {
 	Debug(msg string, metadata map[string]interface{})
 	Info(msg string, metadata map[string]interface{})
 	Warn(msg string, metadata map[string]interface{})
 	Error(msg string, metadata map[string]interface{})
+	WithOptions(...options.LoggerOption) Logger
 }

options/caller.go

@@ -0,0 +1,15 @@
+package options
+
+type CallerSkipOffset struct {
+	Offset int
+}
+
+var _ LoggerOption = CallerSkipOffset{}
+
+func (c CallerSkipOffset) Parameter() string {
+	return "CallerSkipOffset"
+}
+
+func (c CallerSkipOffset) Value() interface{} {
+	return c.Offset
+}

options/interface.go

@@ -0,0 +1,6 @@
+package options
+
+type LoggerOption interface {
+	Parameter() string
+	Value() interface{}
+}

options/name.go

@@ -0,0 +1,15 @@
+package options
+
+type Named struct {
+	Name string
+}
+
+var _ LoggerOption = Named{}
+
+func (c Named) Parameter() string {
+	return "Named"
+}
+
+func (c Named) Value() interface{} {
+	return c.Name
+}