Try to run npm install only if needed !

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Vigiupdate",
+      "skipFiles": [
+        "<node_internals>/**"
+      ],
+      "program": "${workspaceFolder}\\vigiupdate.js"
+    }
+  ]
+}

utils/update.js

@@ -108,14 +108,25 @@ module.exports = {
   downloadAndUnzipTag: function(archiveUri, tmpFolder) {
     console.log('Download @ ' + archiveUri);
 
-    return new Promise(function (resolve, reject) {
+    return new Promise((resolve, reject) => {
       // downloadAndFollowRedirect last archive
-      this.downloadAndFollowRedirect(archiveUri).then(function (response) {
+      this.downloadAndFollowRedirect(archiveUri).then((response) => {
         response
           .pipe(unzipper.Extract({ path: tmpFolder })) // Will create tmpFolder if needed
-          .on('close', resolve);
+          .on('close', () => {
+            try {
+              fs.readdirSync(tmpFolder).forEach((tmpSubFolder) => { // Zip contain a sub-folder...
+                this.copyFolder(tmpFolder + path.sep + tmpSubFolder, tmpFolder, []);
+                this.deleteFileOrFolder(tmpFolder + path.sep + tmpSubFolder);
+                resolve();
+              });
+            }
+            catch (e) {
+              reject(e);
+            }
+          });
       }, reject);
-    }.bind(this));
+    });
   },
 
   replaceCurrentProject: function(originPath, currentProjetPath) {
@@ -125,9 +136,7 @@ module.exports = {
       }
 
       try {
-        fs.readdirSync(originPath).forEach(function (projectFolder) { // Zip contain a sub-folder...
-          this.copyFolder(originPath + path.sep + projectFolder, currentProjetPath, []);
-        }.bind(this));
+        this.copyFolder(originPath, currentProjetPath, []);
       }
       catch (e) {
         reject(e);

vigiupdate.js

@@ -28,7 +28,7 @@ updateUtils.getLatestTagInfos(repoOwner, repoId).then(function (latestTag) {
 			}
 
 			console.log('Backup current project');
-			updateUtils.copyFolder(projectFolderPath, backupFolderPath, [path.resolve('update.backup2'), path.resolve('.git'), path.resolve('node_modules'), tempFolderPath, backupFolderPath]);
+			updateUtils.copyFolder(projectFolderPath, backupFolderPath, [path.resolve('.git'), path.resolve('.vscode'), path.resolve('node_modules'), tempFolderPath, backupFolderPath]);
 		}
 		catch(e) {
 			console.error('Fail to backup current project: ' + e);