fix: remove unneeded deps (#60)

ctx/ctx.go

@@ -188,9 +188,15 @@ func Interface(k string, v interface{}) logger.Field {
 	}
 }
 
-// TraceID returns a open telemetry trace ID context field.
-func TraceID(k string, span trace.Span) logger.Field {
-	if !span.IsRecording() {
+// Span represents an open telemetry span.
+type Span interface {
+	IsRecording() bool
+	SpanContext() trace.SpanContext
+}
+
+// TraceID returns an open telemetry trace ID context field.
+func TraceID(k string, span Span) logger.Field {
+	if !span.IsRecording() || !span.SpanContext().HasTraceID() {
 		return func(*logger.Event) {}
 	}
 	return func(e *logger.Event) {

go.mod

@@ -5,6 +5,5 @@ go 1.16
 require (
 	github.com/go-stack/stack v1.8.1
 	github.com/stretchr/testify v1.8.4
-	go.opentelemetry.io/otel v1.17.0
 	go.opentelemetry.io/otel/trace v1.17.0
 )

logger_test.go

@@ -13,8 +13,6 @@ import (
 	"github.com/hamba/logger/v2/ctx"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/trace"
 )
 
@@ -231,7 +229,7 @@ func TestLogger_Stack(t *testing.T) {
 
 	log.Info("some message", ctx.Stack("stack"))
 
-	want := `lvl=info msg="some message" stack=[github.com/hamba/logger/logger/logger_test.go:232]` + "\n"
+	want := `lvl=info msg="some message" stack=[github.com/hamba/logger/logger/logger_test.go:230]` + "\n"
 	assert.Equal(t, want, buf.String())
 }
 
@@ -265,19 +263,14 @@ type fakeSpan struct {
 	ID        byte
 }
 
-func (s *fakeSpan) End(...trace.SpanEndOption)              {}
-func (s *fakeSpan) AddEvent(string, ...trace.EventOption)   {}
-func (s *fakeSpan) IsRecording() bool                       { return s.Recording }
-func (s *fakeSpan) RecordError(error, ...trace.EventOption) {}
-func (s *fakeSpan) SetStatus(codes.Code, string)            {}
-func (s *fakeSpan) SetName(string)                          {}
-func (s *fakeSpan) SetAttributes(...attribute.KeyValue)     {}
-func (s *fakeSpan) TracerProvider() trace.TracerProvider    { return nil }
+func (s *fakeSpan) IsRecording() bool {
+	return s.Recording
+}
 
 func (s *fakeSpan) SpanContext() trace.SpanContext {
 	return trace.NewSpanContext(trace.SpanContextConfig{
-		TraceID: trace.TraceID([16]byte{1}),
-		SpanID:  trace.SpanID([8]byte{s.ID}),
+		TraceID: [16]byte{1},
+		SpanID:  [8]byte{s.ID},
 		Remote:  false,
 	})
 }