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Copy pathroutes-loader.js
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67 lines (60 loc) · 1.86 KB
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/**
* React Static Boilerplate
* https://github.com/kriasoft/react-static-boilerplate
*
* Copyright © 2015-present Kriasoft, LLC. All rights reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE.txt file in the root directory of this source tree.
*/
const toRegExp = require('path-to-regexp');
function escape(text) {
return text.replace('\'', '\\\'').replace('\\', '\\\\');
}
/**
* Converts application routes from JSON to JavaScript. For example, a route like
*
* {
* "path": "/about",
* "page": "./pages/about"
* }
*
* becomes
*
* {
* path: '/about',
* pattern: /^\\/about(?:\/(?=$))?$/i,
* keys: [],
* page: './pages/about',
* load: function () { return new Promise(resolve => require(['./pages/about'], resolve)); }
* }
*/
module.exports = function routesLoader(source) {
this.cacheable();
const output = ['[\n'];
const routes = JSON.parse(source);
for (const route of routes) {
const keys = [];
const pattern = toRegExp(route.path, keys);
const require = route.path === '/' || route.path === '/error' ?
module => `Promise.resolve(require('${module}'))` :
module => `new Promise(function (resolve, reject) {
try {
require.ensure(['${module}'], function (require) {
resolve(require('${module}'));
});
} catch (err) {
reject(err);
}
})`;
output.push(' {\n');
output.push(` path: '${escape(route.path)}',\n`);
output.push(` pattern: ${pattern.toString()},\n`);
output.push(` keys: ${JSON.stringify(keys)},\n`);
output.push(` page: '${escape(route.page)}',\n`);
output.push(` load: function load() { return ${require(escape(route.page))}; },\n`);
output.push(' },\n');
}
output.push(']');
return `module.exports = ${output.join('')};`;
};