Return list of prerendered files from adapter utils

[geoffrich]

Describe the problem

#2675 updated the prerender function to return a list of prerendered files. However, this list was not returned from the prerender function called from the adapter utils. See the code below: the internal prerender is called, but its return value is not used. This means the adapter can't access it.

kit/packages/kit/src/core/adapt/utils.js

Lines 33 to 43 in 3acdf93

	async prerender({ all = false, dest, fallback }) {
	await prerender({
	out: dest,
	all,
	cwd,
	config,
	build_data,
	fallback,
	log
	});
	}

I think this was missed since #2674 did return the list of copied files from the adapter utils, but let me know if it was intentional.

Describe the proposed solution

Return the list of prerendered files from the adapter utils. This will allow adapter authors to know what files have been prerendered.

Alternatives considered

No response

Importance

nice to have

Additional Information

I maintain the Azure SWA adapter, and want to know if index.html was prerendered or not.

[geoffrich]

Looks like this was fixed in the adapter API overhaul in #2931.

kit/packages/kit/src/core/adapt/builder.js

Lines 146 to 169 in b4aef96

	async prerender({ all = false, dest, fallback }) {
	if (generated_manifest) {
	throw new Error(
	'Adapters must call prerender(...) before createEntries(...) or generateManifest(...)'
	);
	}
	const prerendered = await prerender({
	out: dest,
	all,
	cwd,
	config,
	build_data,
	fallback,
	log
	});
	prerendered.paths.forEach((path) => {
	prerendered_paths.add(path);
	prerendered_paths.add(path + '/');
	});
	return prerendered;
	}