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tweak service worker stuff

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This commit is contained in:
Rich Harris
2017-12-15 14:43:38 -05:00
parent b8c03d330b
commit f5a19ef34b
4 changed files with 65 additions and 48 deletions
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42
utils/create_templates.js
View File

@@ -1,42 +0,0 @@
const fs = require('fs');
const glob = require('glob');
module.exports = function create_templates() {
const templates = glob.sync('*.html', { cwd: 'templates' })
.map(file => {
const template = fs.readFileSync(`templates/${file}`, 'utf-8');
const status = file.replace('.html', '').toLowerCase();
if (!/^[0-9x]{3}$/.test(status)) {
throw new Error(`Bad template — should be a valid status code like 404.html, or a wildcard like 2xx.html`);
}
const specificity = (
(status[0] === 'x' ? 0 : 4) +
(status[1] === 'x' ? 0 : 2) +
(status[2] === 'x' ? 0 : 1)
);
const pattern = new RegExp(`^${status.split('').map(d => d === 'x' ? '\\d' : d).join('')}$`);
return {
test: status => pattern.test(status),
specificity,
render(data) {
return template.replace(/%sapper\.(\w+)%/g, (match, key) => {
return key in data ? data[key] : '';
});
}
}
})
.sort((a, b) => b.specificity - a.specificity);
return {
render: (status, data) => {
const template = templates.find(template => template.test(status));
if (template) return template.render(data);
return `Missing template for status code ${status}`;
}
};
};

20
utils/create_webpack_compiler.js
View File

@@ -2,6 +2,7 @@ const fs = require('fs');
const path = require('path');
const glob = require('glob');
const webpack = require('webpack');
const templates = require('../lib/templates.js');
module.exports = function create_webpack_compiler(dest, routes, dev) {
const compiler = {};
@@ -65,12 +66,29 @@ module.exports = function create_webpack_compiler(dest, routes, dev) {
]).then(() => {
const assets = glob.sync('**', { cwd: 'assets' });
const route_code = `[${
routes
.filter(route => route.type === 'page')
.map(route => `{ pattern: ${route.pattern} }`)
.join(', ')
}]`;
const service_worker = fs.readFileSync('templates/service-worker.js', 'utf-8')
.replace('__timestamp__', Date.now())
.replace('__assets__', JSON.stringify(assets))
.replace('__javascript__', JSON.stringify(compiler.assets));
.replace('__shell__', JSON.stringify(compiler.assets.concat('/index.html')))
.replace('__routes__', route_code);
fs.writeFileSync(path.resolve(dest, 'service-worker.js'), service_worker);
const shell = templates.render(200, {
styles: '',
head: '',
html: '',
main: compiler.client_main
});
fs.writeFileSync(path.resolve(dest, 'index.html'), shell);
});
compiler.get_chunk = async id => {