set exec bit

build/gulpfile.vscode.linux.js

@@ -202,9 +202,11 @@ function prepareSnapPackage(arch) {
 
 		const snapUpdate = gulp.src('resources/linux/snap/snapUpdate.sh', { base: '.' })
 			.pipe(replace('@@NAME@@', product.applicationName))
+			.pipe(util.setExecutableBit())
 			.pipe(rename(`usr/share/${product.applicationName}/snapUpdate.sh`));
 
 		const electronLaunch = gulp.src('resources/linux/snap/electron-launch', { base: '.' })
+			.pipe(util.setExecutableBit())
 			.pipe(rename('electron-launch'));
 
 		const all = es.merge(desktop, icon, code, snapcraft, electronLaunch, snapUpdate);

build/lib/util.ts

@@ -91,7 +91,7 @@ export function fixWin32DirectoryPermissions(): NodeJS.ReadWriteStream {
 	});
 }
 
-export function setExecutableBit(pattern: string | string[]): NodeJS.ReadWriteStream {
+export function setExecutableBit(pattern?: string | string[]): NodeJS.ReadWriteStream {
 	const setBit = es.mapSync<VinylFile, VinylFile>(f => {
 		f.stat.mode = /* 100755 */ 33261;
 		return f;