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serve legacy assets if such there be

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This commit is contained in:
Rich Harris
2018-08-30 23:13:34 -04:00
parent e00b315dec
commit c7cce985e3
1 changed files with 19 additions and 11 deletions
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30
src/middleware.ts
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@@ -306,7 +306,8 @@ function get_page_handler(
const build_info: {
bundler: 'rollup' | 'webpack',
shimport: string | null,
assets: Record<string, string | string[]>
assets: Record<string, string | string[]>,
legacy_assets?: Record<string, string>
} = get_build_info();
res.setHeader('Content-Type', 'text/html');
@@ -472,14 +473,7 @@ function get_page_handler(
store
});
const file = [].concat(build_info.assets.main).filter(file => file && /\.js$/.test(file))[0];
const main = `${req.baseUrl}/client/${file}`;
const script = build_info.bundler === 'rollup'
? `<script>try{new Function("import('${main}')")();}catch(e){var s=document.createElement("script");s.src="${req.baseUrl}/client/shimport@${build_info.shimport}.js";s.setAttribute("data-main","${main}");document.head.appendChild(s);}</script>`
: `<script src="${main}"></script>`;
let inline_script = `__SAPPER__={${[
let script = `__SAPPER__={${[
error && `error:1`,
`baseUrl:"${req.baseUrl}"`,
serialized.preloaded && `preloaded:${serialized.preloaded}`,
@@ -488,12 +482,26 @@ function get_page_handler(
const has_service_worker = fs.existsSync(path.join(locations.dest(), 'service-worker.js'));
if (has_service_worker) {
inline_script += `if ('serviceWorker' in navigator) navigator.serviceWorker.register('${req.baseUrl}/service-worker.js');`;
script += `if('serviceWorker' in navigator)navigator.serviceWorker.register('${req.baseUrl}/service-worker.js');`;
}
const file = [].concat(build_info.assets.main).filter(file => file && /\.js$/.test(file))[0];
const main = `${req.baseUrl}/client/${file}`;
if (build_info.bundler === 'rollup') {
if (build_info.legacy_assets) {
const legacy_main = `${req.baseUrl}/client/legacy/${build_info.legacy_assets.main}`;
script += `(function(){try{eval("async function x(){}");var main="${main}"}catch(e){main="${legacy_main}"};try{new Function("import('"+main+"')")();}catch(e){var s=document.createElement("script");s.src="${req.baseUrl}/client/shimport@${build_info.shimport}.js";s.setAttribute("data-main",main);document.head.appendChild(s);}}());`;
} else {
script += `try{new Function("import('${main}')")();}catch(e){var s=document.createElement("script");s.src="${req.baseUrl}/client/shimport@${build_info.shimport}.js";s.setAttribute("data-main","${main}");document.head.appendChild(s);}`;
}
} else {
script += `</script><script src="${main}">`;
}
const body = template()
.replace('%sapper.base%', () => `<base href="${req.baseUrl}/">`)
.replace('%sapper.scripts%', () => `<script>${inline_script}</script>${script}`)
.replace('%sapper.scripts%', () => `<script>${script}</script>`)
.replace('%sapper.html%', () => html)
.replace('%sapper.head%', () => `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`)
.replace('%sapper.styles%', () => (css && css.code ? `<style>${css.code}</style>` : ''));