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Merge pull request #35 from sveltejs/gh-2

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add preload header for main.js and current route
This commit is contained in:
Rich Harris
2017-12-20 18:13:07 -05:00
committed by GitHub
parent 8d40992cf1 492f024d2a
commit 45e845ee92
2 changed files with 14 additions and 5 deletions
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6
lib/index.js
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@@ -14,8 +14,6 @@ const escape_html = require('escape-html');
const { src, dest, dev } = require('./config.js');
function connect_dev() {
// create main.js and server-routes.js
// TODO update on changes
create_app();
const watcher = create_watcher();
@@ -137,6 +135,10 @@ function get_route_handler(fn) {
const mod = require(server.entry)[route.id];
if (route.type === 'page') {
// preload main.js and current route
// TODO detect other stuff we can preload? images, CSS, fonts?
res.set('Link', `<${client.main_file}>;rel="preload";as="script", <${client.routes[route.id]}>;rel="preload";as="script"`);
let data = { params: req.params, query: req.query };
if (mod.preload) data = Object.assign(data, await mod.preload(data));

13
lib/utils/generate_asset_cache.js
View File

@@ -5,10 +5,12 @@ const templates = require('../templates.js');
const route_manager = require('../route_manager.js');
const { dest } = require('../config.js');
function ensure_array(thing) {
return Array.isArray(thing) ? thing : [thing]; // omg webpack what the HELL are you doing
}
module.exports = function generate_asset_cache(clientInfo, serverInfo) {
let main_file = Array.isArray(clientInfo.assetsByChunkName.main) ?
`/client/${clientInfo.assetsByChunkName.main[0]}` : // omg webpack what the HELL are you doing
`/client/${clientInfo.assetsByChunkName.main}`;
const main_file = `/client/${ensure_array(clientInfo.assetsByChunkName.main)[0]}`;
const chunk_files = clientInfo.assets.map(chunk => `/client/${chunk.name}`);
@@ -29,6 +31,11 @@ module.exports = function generate_asset_cache(clientInfo, serverInfo) {
return lookup;
}, {}),
routes: route_manager.routes.reduce((lookup, route) => {
lookup[route.id] = `/client/${ensure_array(clientInfo.assetsByChunkName[route.id])[0]}`;
return lookup;
}, {}),
index,
service_worker
},