minor changes,work in progress:stop spinner and redirect to homepage after download

app.js

@@ -9,8 +9,7 @@ const fsReaddir = require('fs-readdir');
 const JSZip = require('jszip');
 
 const exphbs = require('express-handlebars');
-// global.jQuery = require('jquery');
-// const bootstrap = require('bootstrap');
+
 //initializer
 const initGitRepos = require('./initializers/gitRepos.js');
 //load names of available download files
@@ -36,10 +35,9 @@ app.use(bodyParser.json());
 	
 	//TODO add spinner for telling user to wait until initialization is done
 	
-	//initGitRepos.initialize(downloadFiles);
-
 	//routes
 	app.get('/', function(req, res){
+		//initGitRepos.initialize(downloadFiles);
 		res.render('home', {downloadFiles: downloadNames});
 	});
 
@@ -57,7 +55,7 @@ app.use(bodyParser.json());
 
 
 	app.get('/download', function(req, res, next){
-		//holds promises for backend and/or frontend
+		//holds promises for backend and/or frontend for synchronizing
 		const promiseArray = []
 		const checkedFiles = req.query.checkedFiles.split(',');
 
@@ -69,7 +67,7 @@ app.use(bodyParser.json());
 		frontendChecked = checkedFiles.find(function(file){
 			return file === 'explorviz-ui-frontend';
 		});
-
+//the user is not allowed to check plugins without having checked frontend or backend
 if(!(backendChecked || frontendChecked)){
 	res.render('home', {downloadFiles: downloadNames});
 }
@@ -146,8 +144,15 @@ function createZip(zip){
 			console.log('error in createZip:', error);
 		}).on('finish', function () {
 			console.log('explorviz-builds.zip written.');
-			res.download('explorviz-builds.zip');
-			//how to redirect to home page?
+			res.download('explorviz-builds.zip', function(error){
+				if(error){
+					let response = 
+					'There was an error during your build. ' +
+					'Please contact "explorviz-developers-request@listserv.dfn.de" ' +
+					'and add the following information: ' + error;
+					res.send(response);
+				} 
+			});
 		}); 
 
 	})
@@ -159,5 +164,6 @@ function createZip(zip){
 });
 
 
+
 	app.listen(3000);
 	console.log("Downloader started on port 3000.");
\ No newline at end of file

initializers/gitRepos.js

@@ -89,12 +89,6 @@ var exec       = require('child_process').exec;
 
 };
 
-
-// module.exports = {
-//   initBackend,
-//   initBackendPlugins,
-//   initFrontend
-// }
 module.exports = {
   initialize
 }
\ No newline at end of file

package.json

@@ -10,15 +10,12 @@
   "license": "Apache-2.0",
   "dependencies": {
     "body-parser": "^1.17.1",
-    "bootstrap": "^3.3.7",
     "child_process": "^1.0.2",
     "express": "^4.15.2",
     "express-handlebars": "^3.0.0",
     "fs": "0.0.1-security",
     "fs-readdir": "0.0.3",
-    "jquery": "^3.2.1",
     "jszip": "^3.1.3",
-    "node-zip": "^1.1.1",
     "path": "^0.12.7",
     "spinkit": "^1.2.5"
   },