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rOACCT/node_modules/react-dev-utils/printHostingInstructions.js
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printHostingInstructions.js
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			/**
			* Copyright (c) 2015-present, Facebook, Inc.
			*
			* This source code is licensed under the MIT license found in the
			* LICENSE file in the root directory of this source tree.
			*/

			'use strict';

			const chalk = require('chalk');
			const url = require('url');
			const globalModules = require('global-modules');
			const fs = require('fs');

			function printHostingInstructions(
			appPackage,
			publicUrl,
			publicPath,
			buildFolder,
			useYarn
			) {
			if (publicUrl && publicUrl.includes('.github.io/')) {
			// "homepage": "http://user.github.io/project"
			const publicPathname = url.parse(publicPath).pathname;
			const hasDeployScript =
			typeof appPackage.scripts !== 'undefined' &&
			typeof appPackage.scripts.deploy !== 'undefined';
			printBaseMessage(buildFolder, publicPathname);

			printDeployInstructions(publicUrl, hasDeployScript, useYarn);
			} else if (publicPath !== '/') {
			// "homepage": "http://mywebsite.com/project"
			printBaseMessage(buildFolder, publicPath);
			} else {
			// "homepage": "http://mywebsite.com"
			// or no homepage
			printBaseMessage(buildFolder, publicUrl);

			printStaticServerInstructions(buildFolder, useYarn);
			}
			console.log();
			console.log('Find out more about deployment here:');
			console.log();
			console.log(` ${chalk.yellow('https://cra.link/deployment')}`);
			console.log();
			}

			function printBaseMessage(buildFolder, hostingLocation) {
			console.log(
			`The project was built assuming it is hosted at ${chalk.green(
			hostingLocation \|\| 'the server root'
			)}.`
			);
			console.log(
			`You can control this with the ${chalk.green(
			'homepage'
			)} field in your ${chalk.cyan('package.json')}.`
			);

			if (!hostingLocation) {
			console.log('For example, add this to build it for GitHub Pages:');
			console.log();

			console.log(
			` ${chalk.green('"homepage"')} ${chalk.cyan(':')} ${chalk.green(
			'"http://myname.github.io/myapp"'
			)}${chalk.cyan(',')}`
			);
			}
			console.log();
			console.log(`The ${chalk.cyan(buildFolder)} folder is ready to be deployed.`);
			}

			function printDeployInstructions(publicUrl, hasDeployScript, useYarn) {
			console.log(`To publish it at ${chalk.green(publicUrl)} , run:`);
			console.log();

			// If script deploy has been added to package.json, skip the instructions
			if (!hasDeployScript) {
			if (useYarn) {
			console.log(` ${chalk.cyan('yarn')} add --dev gh-pages`);
			} else {
			console.log(` ${chalk.cyan('npm')} install --save-dev gh-pages`);
			}
			console.log();

			console.log(
			`Add the following script in your ${chalk.cyan('package.json')}.`
			);
			console.log();

			console.log(` ${chalk.dim('// ...')}`);
			console.log(` ${chalk.yellow('"scripts"')}: {`);
			console.log(` ${chalk.dim('// ...')}`);
			console.log(
			` ${chalk.yellow('"predeploy"')}: ${chalk.yellow(
			`"${useYarn ? 'yarn' : 'npm run'} build",`
			)}`
			);
			console.log(
			` ${chalk.yellow('"deploy"')}: ${chalk.yellow(
			'"gh-pages -d build"'
			)}`
			);
			console.log(' }');
			console.log();

			console.log('Then run:');
			console.log();
			}
			console.log(` ${chalk.cyan(useYarn ? 'yarn' : 'npm')} run deploy`);
			}

			function printStaticServerInstructions(buildFolder, useYarn) {
			console.log('You may serve it with a static server:');
			console.log();

			if (!fs.existsSync(`${globalModules}/serve`)) {
			if (useYarn) {
			console.log(` ${chalk.cyan('yarn')} global add serve`);
			} else {
			console.log(` ${chalk.cyan('npm')} install -g serve`);
			}
			}
			console.log(` ${chalk.cyan('serve')} -s ${buildFolder}`);
			}

			module.exports = printHostingInstructions;