Use 7zip to manipulate windows zip archives

scripts/manipulate_windows_zip.js

@@ -0,0 +1,20 @@
+'use strict';
+
+const spawnSync = require('child_process').spawnSync;
+const path7za = require('7zip-bin').path7za;
+const appVersion = require('../package.json').version;
+
+function renameInZip(zipPath, oldName, newName) {
+  const result = spawnSync(path7za, ['rn', zipPath, oldName, newName]);
+  return result.status === 0;
+}
+
+console.log('Manipulating 64-bit zip...');
+if (!renameInZip(`release/Mattermost-${appVersion}-win.zip`, 'win-unpacked', `Mattermost-${appVersion}-win64`)) {
+  throw new Error('7za returned non-zero exit code for 64-bit zip');
+}
+
+console.log('Manipulating 32-bit zip...');
+if (!renameInZip(`release/Mattermost-${appVersion}-ia32-win.zip`, 'win-ia32-unpacked', `Mattermost-${appVersion}-win32`)) {
+  throw new Error('7za returned non-zero exit code for 32-bit zip');
+}