sectorstorage: Untangle from lotus deps

lib/tarutil/systar.go

@@ -1,92 +0,0 @@
-package tarutil
-
-import (
-	"archive/tar"
-	"golang.org/x/xerrors"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-
-	logging "github.com/ipfs/go-log/v2"
-)
-
-var log = logging.Logger("tarutil")
-
-func ExtractTar(body io.Reader, dir string) error {
-	if err := os.MkdirAll(dir, 0755); err != nil {
-		return xerrors.Errorf("mkdir: %w", err)
-	}
-
-	tr := tar.NewReader(body)
-	for {
-		header, err := tr.Next()
-		switch err {
-		default:
-			return err
-		case io.EOF:
-			return nil
-
-		case nil:
-		}
-
-		f, err := os.Create(filepath.Join(dir, header.Name))
-		if err != nil {
-			return xerrors.Errorf("creating file %s: %w", filepath.Join(dir, header.Name), err)
-		}
-
-		if _, err := io.Copy(f, tr); err != nil {
-			return err
-		}
-
-		if err := f.Close(); err != nil {
-			return err
-		}
-	}
-}
-
-func TarDirectory(dir string) (io.ReadCloser, error) {
-	r, w := io.Pipe()
-
-	go func() {
-		_ = w.CloseWithError(writeTarDirectory(dir, w))
-	}()
-
-	return r, nil
-}
-
-func writeTarDirectory(dir string, w io.Writer) error {
-	tw := tar.NewWriter(w)
-
-	files, err := ioutil.ReadDir(dir)
-	if err != nil {
-		return err
-	}
-
-	for _, file := range files {
-		h, err := tar.FileInfoHeader(file, "")
-		if err != nil {
-			return xerrors.Errorf("getting header for file %s: %w", file.Name(), err)
-		}
-
-		if err := tw.WriteHeader(h); err != nil {
-			return xerrors.Errorf("wiritng header for file %s: %w", file.Name(), err)
-		}
-
-		f, err := os.OpenFile(filepath.Join(dir, file.Name()), os.O_RDONLY, 644)
-		if err != nil {
-			return xerrors.Errorf("opening %s for reading: %w", file.Name(), err)
-		}
-
-		if _, err := io.Copy(tw, f); err != nil {
-			return xerrors.Errorf("copy data for file %s: %w", file.Name(), err)
-		}
-
-		if err := f.Close(); err != nil {
-			return err
-		}
-
-	}
-
-	return nil
-}