fixing zip build script

Author: alekangelov

postPrepare.js

@@ -1,16 +1,23 @@
 const zip = require('bestzip');
 const package = require('./package.json');
+const fs = require('fs');
 
 console.log('Zipping started:');
+const newPath = `./nt-dashboard_v${package.version}.zip`;
 
-zip({
-  source: 'build/*',
-  destination: `nt-dashboard_v${package.version}.zip`,
-})
-  .then(function () {
-    console.log('Zipped up!');
+try {
+  fs.unlinkSync(newPath);
+  zip({
+    source: './build/*',
+    destination: newPath,
   })
-  .catch(function (err) {
-    console.error(err.stack);
-    process.exit(1);
-  });
+    .then(function () {
+      console.log('Zipped up!');
+    })
+    .catch(function (err) {
+      console.error(err.stack);
+      process.exit(1);
+    });
+} catch (e) {
+  console.error(e.stack);
+}