Compatibility with the vue-cli-template / HMR

[EddyVerbruggen]

Hi friends,

I was looking into using TypeScript with https://github.com/nativescript-vue/vue-cli-template and ran into an issue with the before-watch hook.

The template depends on bundling your code, even during development. That's also required to do HMR actually.

However, the before-watch hook skips TS compilation when bundling is in progress. So when a TS file is changed, the changes are not transpiled and the app is never updated with the new code. Sad.

I can fix this locally by commenting these lines in the hook:

nativescript-dev-typescript/lib/watch.js

Lines 6 to 9 in 814d533

	if (appFilesUpdaterOptions.bundle) {
	$logger.warn("Hook skipped because bundling is in progress.")
	return;
	}

Would it be a problem to simply remove the aforementioned check from this hook? It's the only thing stopping us from easily adding TS support to the Vue template.