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Simen Bekkhus authored
* Revert "Add ES5 version of `path-exists` to CLI" This reverts commit fc3ab46d. * Use pre node@4 compatible `path-exists` Ref #617
07623e2f
#!/usr/bin/env node/** * Copyright (c) 2015-present, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. */// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// /!\ DO NOT MODIFY THIS FILE /!\// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//// create-react-app is installed globally on people's computers. This means// that it is extremely difficult to have them upgrade the version and// because there's only one global version installed, it is very prone to// breaking changes.//// The only job of create-react-app is to init the repository and then// forward all the commands to the local version of create-react-app.//// If you need to add a new command, please add it to the scripts/ folder.//// The only reason to modify this file is to add more warnings and// troubleshooting information for the `create-react-app` command.//// Do not make breaking changes! We absolutely don't want to have to// tell people to update their global version of create-react-app.//// Also be careful with new language features.// This file must work on Node 0.10+.//// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~// /!\ DO NOT MODIFY THIS FILE /!\// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'use strict';var fs = require('fs');var path = require('path');var spawn = require('cross-spawn');var chalk = require('chalk');var semver = require('semver');var argv = require('minimist')(process.argv.slice(2));var pathExists = require('path-exists');/** * Arguments: * --version - to print current version * --verbose - to print logs while init * --scripts-version <alternative package> * Example of valid values: * - a specific npm version: "0.22.0-rc1" * - a .tgz archive from any npm repo: "https://registry.npmjs.org/react-scripts/-/react-scripts-0.20.0.tgz" * - a package prepared with `tasks/clean_pack.sh`: "/Users/home/vjeux/create-react-app/react-scripts-0.22.0.tgz" */var commands = argv._;if (commands.length === 0) { if (argv.version) { console.log('create-react-app version: ' + require('./package.json').version); process.exit(); } console.error( 'Usage: create-react-app <project-directory> [--verbose]' ); process.exit(1);}7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
createApp(commands[0], argv.verbose, argv['scripts-version']);
function createApp(name, verbose, version) {
var root = path.resolve(name);
var appName = path.basename(root);
checkAppName(appName);
if (!pathExists.sync(name)) {
fs.mkdirSync(root);
} else if (!isSafeToCreateProjectIn(root)) {
console.log('The directory `' + name + '` contains file(s) that could conflict. Aborting.');
process.exit(1);
}
console.log(
'Creating a new React app in ' + root + '.'
);
console.log();
var packageJson = {
name: appName,
version: '0.1.0',
private: true,
};
fs.writeFileSync(
path.join(root, 'package.json'),
JSON.stringify(packageJson, null, 2)
);
var originalDirectory = process.cwd();
process.chdir(root);
console.log('Installing packages. This might take a couple minutes.');
console.log('Installing react-scripts from npm...');
console.log();
run(root, appName, version, verbose, originalDirectory);
}
function run(root, appName, version, verbose, originalDirectory) {
var installPackage = getInstallPackage(version);
var packageName = getPackageName(installPackage);
var args = [
'install',
verbose && '--verbose',
'--save-dev',
'--save-exact',
installPackage,
].filter(function(e) { return e; });
var proc = spawn('npm', args, {stdio: 'inherit'});
proc.on('close', function (code) {
if (code !== 0) {
console.error('`npm ' + args.join(' ') + '` failed');
return;
}
checkNodeVersion(packageName);
var scriptsPath = path.resolve(
process.cwd(),
'node_modules',
packageName,
'scripts',
'init.js'
);
var init = require(scriptsPath);
init(root, appName, verbose, originalDirectory);
});
}
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function getInstallPackage(version) {
var packageToInstall = 'react-scripts';
var validSemver = semver.valid(version);
if (validSemver) {
packageToInstall += '@' + validSemver;
} else if (version) {
// for tar.gz or alternative paths
packageToInstall = version;
}
return packageToInstall;
}
// Extract package name from tarball url or path.
function getPackageName(installPackage) {
if (~installPackage.indexOf('.tgz')) {
return installPackage.match(/^.+\/(.+)-.+\.tgz$/)[1];
} else if (~installPackage.indexOf('@')) {
return installPackage.split('@')[0];
}
return installPackage;
}
function checkNodeVersion(packageName) {
var packageJsonPath = path.resolve(
process.cwd(),
'node_modules',
packageName,
'package.json'
);
var packageJson = require(packageJsonPath);
if (!packageJson.engines || !packageJson.engines.node) {
return;
}
if (!semver.satisfies(process.version, packageJson.engines.node)) {
console.error(
chalk.red(
'You are currently running Node %s but create-react-app requires %s.' +
' Please use a supported version of Node.\n'
),
process.version,
packageJson.engines.node
);
process.exit(1);
}
}
function checkAppName(appName) {
// TODO: there should be a single place that holds the dependencies
var dependencies = ['react', 'react-dom'];
var devDependencies = ['react-scripts'];
var allDependencies = dependencies.concat(devDependencies).sort();
if (allDependencies.indexOf(appName) >= 0) {
console.error(
chalk.red(
'We cannot create a project called `' + appName + '` because a dependency with the same name exists.\n' +
'Due to the way npm works, the following names are not allowed:\n\n'
) +
chalk.cyan(
allDependencies.map(function(depName) {
return ' ' + depName;
}).join('\n')
) +
chalk.red('\n\nPlease choose a different project name.')
);
process.exit(1);
}
}
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// If project only contains files generated by GH, it’s safe.
// We also special case IJ-based products .idea because it integrates with CRA:
// https://github.com/facebookincubator/create-react-app/pull/368#issuecomment-243446094
function isSafeToCreateProjectIn(root) {
var validFiles = [
'.DS_Store', 'Thumbs.db', '.git', '.gitignore', '.idea', 'README.md', 'LICENSE'
];
return fs.readdirSync(root)
.every(function(file) {
return validFiles.indexOf(file) >= 0;
});
}