Remove duplication and make consistent usage of the progress bar

Signed-off-by: Mario Loriedo <mario.loriedo@gmail.com>

pkg/machine/compression/uncompressed.go

@@ -2,44 +2,20 @@ package compression
 
 import (
 	"io"
-	"os"
 
 	crcOs "github.com/crc-org/crc/v2/pkg/os"
-	"github.com/sirupsen/logrus"
 )
 
 type uncompressedDecompressor struct {
-	compressedFilePath string
-	compressedFile     *os.File
+	genericDecompressor
 }
 
-func newUncompressedDecompressor(compressedFilePath string) decompressor {
-	return &uncompressedDecompressor{
-		compressedFilePath: compressedFilePath,
-	}
+func newUncompressedDecompressor(compressedFilePath string) (*uncompressedDecompressor, error) {
+	d, err := newGenericDecompressor(compressedFilePath)
+	return &uncompressedDecompressor{*d}, err
 }
 
-func (d *uncompressedDecompressor) srcFilePath() string {
-	return d.compressedFilePath
-}
-
-func (d *uncompressedDecompressor) reader() (io.Reader, error) {
-	srcFile, err := os.Open(d.compressedFilePath)
-	if err != nil {
-		return nil, err
-	}
-	d.compressedFile = srcFile
-
-	return srcFile, nil
-}
-
-func (*uncompressedDecompressor) copy(w *os.File, r io.Reader) error {
+func (*uncompressedDecompressor) decompress(w io.WriteSeeker, r io.Reader) error {
 	_, err := crcOs.CopySparse(w, r)
 	return err
 }
-
-func (d *uncompressedDecompressor) close() {
-	if err := d.compressedFile.Close(); err != nil {
-		logrus.Errorf("Unable to close gz file: %q", err)
-	}
-}