#!/usr/bin/env node

/**
* MIT License
*
* Copyright (c) 2013-present, Facebook, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

'use strict';

// Do this as the first thing so that any code reading it knows the right env.
process.env.BABEL_ENV = 'production';
process.env.NODE_ENV = 'production';

// Makes the script crash on unhandled rejections instead of silently
// ignoring them. In the future, promise rejections that are not handled will
// terminate the Node.js process with a non-zero exit code.
process.on('unhandledRejection', err => {
	throw err;
});

// Ensure environment variables are read.
require('../../../etc/webpack/env');


const path = require('path');
const chalk = require('react-dev-utils/chalk');
const webpack = require('webpack');
const configFactory = require('../../../etc/webpack/config');
const paths = require('../../../etc/webpack/paths');
const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
const formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
const printHostingInstructions = require('react-dev-utils/printHostingInstructions');
const printBuildError = require('react-dev-utils/printBuildError');

const isInteractive = process.stdout.isTTY;

// Warn and crash if required files are missing
if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
	process.exit(1);
}

// Generate configuration
const config = configFactory('production');

// We require that you explicitly set browsers and do not fall back to
// browserslist defaults.
const { checkBrowsers } = require('react-dev-utils/browsersHelper');
checkBrowsers(paths.appPath, isInteractive)
	.then(() => {
		return build();
	})
	.then(
		({ stats, warnings }) => {
			if (warnings.length) {
				console.log(chalk.yellow('Compiled with warnings.\n'));
				console.log(warnings.join('\n\n'));
				console.log(
					'\nSearch for the ' +
						chalk.underline(chalk.yellow('keywords')) +
						' to learn more about each warning.'
				);
				console.log(
					'To ignore, add ' +
						chalk.cyan('// eslint-disable-next-line') +
						' to the line before.\n'
				);
			} else {
				console.log(chalk.green('Compiled successfully.\n'));
			}

			const appPackage = require(paths.appPackageJson);
			const publicUrl = paths.publicUrl;
			const publicPath = config.output.publicPath;
			const buildFolder = path.relative(process.cwd(), paths.appBuild);
			printHostingInstructions(
				appPackage,
				publicUrl,
				publicPath,
				buildFolder,
			);
		},
		err => {
			console.log(chalk.red('Failed to compile.\n'));
			printBuildError(err);
			process.exit(1);
		}
	)
	.catch(err => {
		if (err && err.message) {
			console.log(err.message);
		}
		process.exit(1);
	});

// Create the production build and print the deployment instructions.
function build() {
	// We used to support resolving modules according to `NODE_PATH`.
	// This now has been deprecated in favor of jsconfig/tsconfig.json
	// This lets you use absolute paths in imports inside large monorepos:
	if (process.env.NODE_PATH) {
		console.log(
			chalk.yellow(
				'Setting NODE_PATH to resolve modules absolutely has been deprecated in favor of setting baseUrl in jsconfig.json (or tsconfig.json if you are using TypeScript) and will be removed in a future major release of create-react-app.'
			)
		);
		console.log();
	}

	console.log('Creating an optimized production build...');

	const compiler = webpack(config);
	return new Promise((resolve, reject) => {
		compiler.run((err, stats) => {
			let messages;
			if (err) {
				if (!err.message) {
					return reject(err);
				}
				messages = formatWebpackMessages({
					errors: [err.message],
					warnings: [],
				});
			} else {
				messages = formatWebpackMessages(
					stats.toJson({ all: false, warnings: true, errors: true })
				);
			}
			if (messages.errors.length) {
				// Only keep the first error. Others are often indicative
				// of the same problem, but confuse the reader with noise.
				if (messages.errors.length > 1) {
					messages.errors.length = 1;
				}
				return reject(new Error(messages.errors.join('\n\n')));
			}
			if (
				process.env.CI &&
				(typeof process.env.CI !== 'string' ||
					process.env.CI.toLowerCase() !== 'false') &&
				messages.warnings.length
			) {
				console.log(
					chalk.yellow(
						'\nTreating warnings as errors because process.env.CI = true.\n' +
							'Most CI servers set it automatically.\n'
					)
				);
				return reject(new Error(messages.warnings.join('\n\n')));
			}

			return resolve({
				stats,
				warnings: messages.warnings,
			});
		});
	});
}

@@ -1657,17 +1657,16 @@
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