refactor: project structure

server/pkg/helper/tar.go

@@ -1,81 +0,0 @@
-package helper
-
-import (
-	"archive/tar"
-	"compress/gzip"
-	"github.com/pkg/errors"
-	"io"
-	"os"
-	"path/filepath"
-)
-
-func UnTar(dst, src string) (err error) {
-	fr, err := os.Open(src)
-	if err != nil {
-		err = errors.Wrap(err, "unTar open src error")
-		return
-	}
-	defer fr.Close()
-
-	gr, err := gzip.NewReader(fr)
-	if err != nil {
-		err = errors.Wrap(err, "unTar gzip.NewReader error")
-		return
-	}
-	defer gr.Close()
-
-	tr := tar.NewReader(gr)
-
-	for {
-		err = func() (err error) {
-			hdr, err := tr.Next()
-
-			switch {
-			case err == io.EOF:
-				return
-			case err != nil:
-				return errors.Wrap(err, "unTar tr.Next() error")
-			case hdr == nil:
-				return
-			}
-
-			dstFileDir := filepath.Join(dst, hdr.Name)
-
-			switch hdr.Typeflag {
-			case tar.TypeDir:
-				if b := ExistDir(dstFileDir); !b {
-					if err = os.MkdirAll(dstFileDir, 0755); err != nil {
-						return errors.Wrap(err, "unTar os.MkdirAll error")
-					}
-				}
-			case tar.TypeReg:
-				file, err := os.OpenFile(dstFileDir, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, os.ModePerm)
-				if err != nil {
-					return errors.Wrap(err, "unTar os.OpenFile error")
-				}
-				defer file.Close()
-				_, err = file.Seek(0, os.SEEK_END)
-				if err != nil {
-					return errors.Wrap(err, "unTar file.Truncate(0) error")
-				}
-				_, err = io.Copy(file, tr)
-				if err != nil {
-					return errors.Wrap(err, "unTar io.Copy error")
-				}
-			}
-			return
-		}()
-		if err == io.EOF {
-			break
-		}
-	}
-	if err == io.EOF {
-		err = nil
-	}
-	return
-}
-
-func ExistDir(dirname string) bool {
-	fi, err := os.Stat(dirname)
-	return (err == nil || os.IsExist(err)) && fi.IsDir()
-}