Added a flag to control the extraction of archive based on user input (#675)

For certain environments, the archive should not be extracted and kept as it is (For ex. for Java the jar file should not be extracted). This change enables an environment level flag to control this behaviour.

environments/fetcher/fetcher.go

@@ -29,13 +29,14 @@ type (
 	FetchRequestType int
 
 	FetchRequest struct {
-		FetchType     FetchRequestType             `json:"fetchType"`
-		Package       metav1.ObjectMeta            `json:"package"`
-		Url           string                       `json:"url"`
-		StorageSvcUrl string                       `json:"storagesvcurl"`
-		Filename      string                       `json:"filename"`
-		Secrets       []fission.SecretReference    `json:"secretList"`
-		ConfigMaps    []fission.ConfigMapReference `json:"configMapList"`
+		FetchType      FetchRequestType             `json:"fetchType"`
+		Package        metav1.ObjectMeta            `json:"package"`
+		Url            string                       `json:"url"`
+		StorageSvcUrl  string                       `json:"storagesvcurl"`
+		Filename       string                       `json:"filename"`
+		Secrets        []fission.SecretReference    `json:"secretList"`
+		ConfigMaps     []fission.ConfigMapReference `json:"configMapList"`
+		ExtractArchive bool                         `json:"extractarchive"`
 	}
 
 	// UploadRequest send from builder manager describes which
@@ -292,8 +293,7 @@ func (fetcher *Fetcher) Fetch(req FetchRequest) (int, error) {
 		}
 	}
 
-	// check file type here, if the file is a zip file unarchive it.
-	if archiver.Zip.Match(tmpPath) {
+	if archiver.Zip.Match(tmpPath) && req.ExtractArchive {
 		// unarchive tmp file to a tmp unarchive path
 		tmpUnarchivePath := filepath.Join(fetcher.sharedVolumePath, uuid.NewV4().String())
 		err := fetcher.unarchive(tmpPath, tmpUnarchivePath)
@@ -301,6 +301,7 @@ func (fetcher *Fetcher) Fetch(req FetchRequest) (int, error) {
 			log.Println(err.Error())
 			return http.StatusInternalServerError, err
 		}
+
 		tmpPath = tmpUnarchivePath
 	}