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'use strict'; |
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const path = require('path'); |
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const fs = require('fs'); |
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const url = require('url'); |
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// Make sure any symlinks in the project folder are resolved: |
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// https://github.com/facebookincubator/create-react-app/issues/637 |
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const appDirectory = fs.realpathSync(process.cwd()); |
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const resolveApp = relativePath => path.resolve(appDirectory, relativePath); |
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const envPublicUrl = process.env.PUBLIC_URL; |
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function ensureSlash(path, needsSlash) { |
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const hasSlash = path.endsWith('/'); |
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if (hasSlash && !needsSlash) { |
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return path.substr(path, path.length - 1); |
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} else if (!hasSlash && needsSlash) { |
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return `${path}/`; |
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} else { |
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return path; |
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} |
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} |
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const getPublicUrl = appPackageJson => |
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envPublicUrl || require(appPackageJson).homepage; |
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// We use `PUBLIC_URL` environment variable or "homepage" field to infer |
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// "public path" at which the app is served. |
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// Webpack needs to know it to put the right <script> hrefs into HTML even in |
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// single-page apps that may serve index.html for nested URLs like /todos/42. |
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// We can't use a relative path in HTML because we don't want to load something |
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// like /todos/42/static/js/bundle.7289d.js. We have to know the root. |
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function getServedPath(appPackageJson) { |
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const publicUrl = getPublicUrl(appPackageJson); |
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const servedUrl = |
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envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/'); |
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return ensureSlash(servedUrl, true); |
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} |
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// config after eject: we're in ./config/ |
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module.exports = { |
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dotenv: resolveApp('.env'), |
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appBuild: resolveApp('build'), |
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appPublic: resolveApp('public'), |
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appHtml: resolveApp('public/index.html'), |
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appIndexJs: resolveApp('src/index.js'), |
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appPackageJson: resolveApp('package.json'), |
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appSrc: resolveApp('src'), |
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yarnLockFile: resolveApp('yarn.lock'), |
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testsSetup: resolveApp('src/setupTests.js'), |
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appNodeModules: resolveApp('node_modules'), |
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publicUrl: getPublicUrl(resolveApp('package.json')), |
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servedPath: getServedPath(resolveApp('package.json')), |
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}; |
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