prerender: hooks

[pi0]

nuxt/nuxt#11786

Most importantly prerender:route hook which can be useful to modify and inspect pretender results. (eg: for service-worker to inject it's script)

[farnabaz]

We have a prerender:route hoo, but it is not useful. (Changing route data does not affect on generated content)

nitro/src/prerender.ts

Line 99 in cbc7ba3

await nitro.hooks.callHook('prerender:route', _route)

But this should move into generateRoute function, before persisting content into file

nitro/src/prerender.ts

Lines 66 to 68 in cbc7ba3

	_route.fileName = isImplicitHTML ? route + '/index.html' : routeWithIndex
	const filePath = join(nitro.options.output.publicDir, _route.fileName)
	await writeFile(filePath, _route.contents)

WDYT @pi0

[pi0]

Nice find @farnabaz. prerender:route is called outside as for generic error handling and stats purposes. We might introduce another predenrer hook and use before writeFileCall to allow extending to skipping.