66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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const { URL } = require('url');
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module.exports = getPublicUrlOrPath;
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/**
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* Returns a URL or a path with slash at the end
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* In production can be URL, abolute path, relative path
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* In development always will be an absolute path
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* In development can use `path` module functions for operations
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*
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* @param {boolean} isEnvDevelopment
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* @param {(string|undefined)} homepage a valid url or pathname
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* @param {(string|undefined)} envPublicUrl a valid url or pathname
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* @returns {string}
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*/
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function getPublicUrlOrPath(isEnvDevelopment, homepage, envPublicUrl) {
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const stubDomain = 'https://create-react-app.dev';
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if (envPublicUrl) {
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// ensure last slash exists
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envPublicUrl = envPublicUrl.endsWith('/')
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? envPublicUrl
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: envPublicUrl + '/';
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// validate if `envPublicUrl` is a URL or path like
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// `stubDomain` is ignored if `envPublicUrl` contains a domain
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const validPublicUrl = new URL(envPublicUrl, stubDomain);
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return isEnvDevelopment
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? envPublicUrl.startsWith('.')
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? '/'
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: validPublicUrl.pathname
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: // Some apps do not use client-side routing with pushState.
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// For these, "homepage" can be set to "." to enable relative asset paths.
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envPublicUrl;
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}
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if (homepage) {
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// strip last slash if exists
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homepage = homepage.endsWith('/') ? homepage : homepage + '/';
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// validate if `homepage` is a URL or path like and use just pathname
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const validHomepagePathname = new URL(homepage, stubDomain).pathname;
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return isEnvDevelopment
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? homepage.startsWith('.')
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? '/'
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: validHomepagePathname
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: // Some apps do not use client-side routing with pushState.
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// For these, "homepage" can be set to "." to enable relative asset paths.
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homepage.startsWith('.')
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? homepage
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: validHomepagePathname;
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}
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return '/';
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}
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