move httpLogWriter in a dedicated file

internal/core/api.go

@@ -1,10 +1,8 @@
 package core
 
 import (
-	"bytes"
 	"context"
 	"encoding/json"
-	"fmt"
 	"net"
 	"net/http"
 	"net/http/httputil"
@@ -17,32 +15,6 @@ import (
 	"github.com/aler9/rtsp-simple-server/internal/logger"
 )
 
-type httpLogWriter struct {
-	gin.ResponseWriter
-	buf bytes.Buffer
-}
-
-func (w *httpLogWriter) Write(b []byte) (int, error) {
-	w.buf.Write(b)
-	return w.ResponseWriter.Write(b)
-}
-
-func (w *httpLogWriter) WriteString(s string) (int, error) {
-	w.buf.WriteString(s)
-	return w.ResponseWriter.WriteString(s)
-}
-
-func (w *httpLogWriter) dump() string {
-	var buf bytes.Buffer
-	fmt.Fprintf(&buf, "%s %d %s\n", "HTTP/1.1", w.ResponseWriter.Status(), http.StatusText(w.ResponseWriter.Status()))
-	w.ResponseWriter.Header().Write(&buf)
-	buf.Write([]byte("\n"))
-	if w.buf.Len() > 0 {
-		fmt.Fprintf(&buf, "(body of %d bytes)", w.buf.Len())
-	}
-	return buf.String()
-}
-
 func interfaceIsEmpty(i interface{}) bool {
 	return reflect.ValueOf(i).Kind() != reflect.Ptr || reflect.ValueOf(i).IsNil()
 }

internal/core/httplogwriter.go

@@ -0,0 +1,35 @@
+package core
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+type httpLogWriter struct {
+	gin.ResponseWriter
+	buf bytes.Buffer
+}
+
+func (w *httpLogWriter) Write(b []byte) (int, error) {
+	w.buf.Write(b)
+	return w.ResponseWriter.Write(b)
+}
+
+func (w *httpLogWriter) WriteString(s string) (int, error) {
+	w.buf.WriteString(s)
+	return w.ResponseWriter.WriteString(s)
+}
+
+func (w *httpLogWriter) dump() string {
+	var buf bytes.Buffer
+	fmt.Fprintf(&buf, "%s %d %s\n", "HTTP/1.1", w.ResponseWriter.Status(), http.StatusText(w.ResponseWriter.Status()))
+	w.ResponseWriter.Header().Write(&buf)
+	buf.Write([]byte("\n"))
+	if w.buf.Len() > 0 {
+		fmt.Fprintf(&buf, "(body of %d bytes)", w.buf.Len())
+	}
+	return buf.String()
+}