Remove gzip wrapper

upload/uploader.go

@@ -1,8 +1,6 @@
 package upload
 
 import (
-	"bytes"
-	"compress/gzip"
 	"context"
 	"expvar"
 	"fmt"
@@ -130,61 +128,6 @@ func (u *Uploader) upload(ctx context.Context) error {
 	return err
 }
 
-type GZIPReader struct {
-	src        io.Reader
-	gw         *gzip.Writer
-	buffer     *bytes.Buffer
-	compressed *bytes.Buffer
-	chunkSize  int64
-}
-
-func NewGZIPReader(src io.Reader, chunkSize int64) *GZIPReader {
-	buffer := new(bytes.Buffer)
-	gw := gzip.NewWriter(buffer)
-
-	return &GZIPReader{
-		src:        src,
-		gw:         gw,
-		buffer:     buffer,
-		compressed: new(bytes.Buffer),
-		chunkSize:  chunkSize,
-	}
-}
-
-func (g *GZIPReader) compressChunk() error {
-	g.buffer.Reset()
-
-	_, err := io.CopyN(g.gw, g.src, g.chunkSize)
-	if err != nil && err != io.EOF {
-		return fmt.Errorf("error copying data to gzip writer: %w", err)
-	}
-
-	if err := g.gw.Flush(); err != nil {
-		return fmt.Errorf("error flushing gzip writer: %w", err)
-	}
-
-	_, err = io.Copy(g.compressed, g.buffer)
-	return err
-}
-
-func (g *GZIPReader) Read(p []byte) (int, error) {
-	for g.compressed.Len() < len(p) {
-		err := g.compressChunk()
-		if err != nil {
-			if err == io.EOF {
-				break
-			}
-			return 0, err
-		}
-	}
-
-	return g.compressed.Read(p)
-}
-
-func (g *GZIPReader) Close() error {
-	return g.gw.Close()
-}
-
 type countingReader struct {
 	reader io.Reader
 	count  int64