mirror of
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50 lines
1.8 KiB
JavaScript
50 lines
1.8 KiB
JavaScript
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(needlePath, needsSlash) {
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const hasSlash = needlePath.endsWith('/')
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if (hasSlash && !needsSlash) {
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return needlePath.substr(needlePath, needlePath.length - 1)
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} else if (!hasSlash && needsSlash) {
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return `${needlePath}/`
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}
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return needlePath
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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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module.exports = {
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appBuild: resolveApp('build'),
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appNodeModules: resolveApp('node_modules'),
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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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appPublic: resolveApp('public'),
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appSrc: resolveApp('src'),
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publicUrl: getPublicUrl(resolveApp('package.json')),
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servedPath: getServedPath(resolveApp('package.json')),
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yarnLockFile: resolveApp('yarn.lock'),
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}
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