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fileSystem.js
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/*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Serves the built pages and assets from
* the local file system. The directory used depends on the
* given environment
*/
const express = require('express');
const {buildRedirectHandler} = require('../redirects/redirect');
const {buildUniqueRedirectHandler} = require('../redirects/uniqueRedirect');
function getStaticPaths() {
if (process.env.NODE_ENV === 'test') {
return ['tests/server/fixtures', 'tests/server/fixtures/en'];
}
return ['dist', 'dist/en'];
}
function buildFileSystemHandler() {
const router = express.Router();
const staticPaths = getStaticPaths();
for (const staticPath of staticPaths) {
router.use(express.static(staticPath));
}
// If serving from file system, redirect handlers that
// rely on file system look ups can also be built
router.use(buildRedirectHandler('redirects.yaml', staticPaths));
router.use(buildUniqueRedirectHandler());
return router;
}
module.exports = {buildFileSystemHandler};