fix symlinks extractions

Author: facchinm

download.go

@@ -98,7 +98,7 @@ func spDownloadTool(name string, url string) {
 			h.broadcastSys <- mapB
 			return
 		}
-		err = Unzip(fileName, tempToolsPath)
+		err = UnzipWrapper(fileName, tempToolsPath)
 		if err != nil {
 			log.Error("Could not unzip flashing tools!")
 			mapD := map[string]string{"DownloadStatus": "Error", "Msg": err.Error()}

update.go

@@ -41,6 +41,7 @@ import (
 	"github.com/inconshreveable/go-update"
 	"github.com/kardianos/osext"
 	"github.com/kr/binarydist"
+	"github.com/pivotal-golang/archiver/extractor"
 	patch "github.com/sanderhahn/gozip/patchzip"
 	"io"
 	"io/ioutil"
@@ -54,6 +55,11 @@ import (
 	"time"
 )
 
+func UnzipWrapper(src, dest string) error {
+	e := extractor.NewDetectable()
+	return e.Extract(src, dest)
+}
+
 func IsZip(path string) bool {
 	r, err := zip.OpenReader(path)
 	if err == nil {