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Joe Haddad authoredUnverified7be14b91
// @remove-file-on-eject/** * 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';// 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;});const fs = require('fs-extra');const path = require('path');const chalk = require('chalk');const execSync = require('child_process').execSync;const spawn = require('react-dev-utils/crossSpawn');const { defaultBrowsers } = require('react-dev-utils/browsersHelper');const os = require('os');function isInGitRepository() { try { execSync('git rev-parse --is-inside-work-tree', { stdio: 'ignore' }); return true; } catch (e) { return false; }}function isInMercurialRepository() { try { execSync('hg --cwd . root', { stdio: 'ignore' }); return true; } catch (e) { return false; }}function tryGitInit(appPath) { let didInit = false; try { execSync('git --version', { stdio: 'ignore' }); if (isInGitRepository() || isInMercurialRepository()) { return false; } execSync('git init', { stdio: 'ignore' }); didInit = true; execSync('git add -A', { stdio: 'ignore' }); execSync('git commit -m "Initial commit from Create React App"', { stdio: 'ignore', }); return true; } catch (e) { if (didInit) { // If we successfully initialized but couldn't commit, // maybe the commit author config is not set. // In the future, we might supply our own committer // like Ember CLI does, but for now, let's just // remove the Git files to avoid a half-done state. try { // unlinkSync() doesn't work on directories. fs.removeSync(path.join(appPath, '.git')); } catch (removeErr) { // Ignore.7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
}
}
return false;
}
}
module.exports = function(
appPath,
appName,
verbose,
originalDirectory,
template
) {
const ownPackageName = require(path.join(__dirname, '..', 'package.json'))
.name;
const ownPath = path.join(appPath, 'node_modules', ownPackageName);
const appPackage = require(path.join(appPath, 'package.json'));
const useYarn = fs.existsSync(path.join(appPath, 'yarn.lock'));
// Copy over some of the devDependencies
appPackage.dependencies = appPackage.dependencies || {};
// Setup the script rules
appPackage.scripts = {
start: 'react-scripts start',
build: 'react-scripts build',
test: 'react-scripts test --env=jsdom',
eject: 'react-scripts eject',
};
// Setup the eslint config
appPackage.eslintConfig = {
extends: 'react-app',
};
// Setup the browsers list
appPackage.browserslist = defaultBrowsers;
fs.writeFileSync(
path.join(appPath, 'package.json'),
JSON.stringify(appPackage, null, 2) + os.EOL
);
const readmeExists = fs.existsSync(path.join(appPath, 'README.md'));
if (readmeExists) {
fs.renameSync(
path.join(appPath, 'README.md'),
path.join(appPath, 'README.old.md')
);
}
// Copy the files for the user
const templatePath = template
? path.resolve(originalDirectory, template)
: path.join(ownPath, 'template');
if (fs.existsSync(templatePath)) {
fs.copySync(templatePath, appPath);
} else {
console.error(
`Could not locate supplied template: ${chalk.green(templatePath)}`
);
return;
}
// Rename gitignore after the fact to prevent npm from renaming it to .npmignore
// See: https://github.com/npm/npm/issues/1862
try {
fs.moveSync(
path.join(appPath, 'gitignore'),
path.join(appPath, '.gitignore'),
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[]
);
} catch (err) {
// Append if there's already a `.gitignore` file there
if (err.code === 'EEXIST') {
const data = fs.readFileSync(path.join(appPath, 'gitignore'));
fs.appendFileSync(path.join(appPath, '.gitignore'), data);
fs.unlinkSync(path.join(appPath, 'gitignore'));
} else {
throw err;
}
}
let command;
let args;
if (useYarn) {
command = 'yarnpkg';
args = ['add'];
} else {
command = 'npm';
args = ['install', '--save', verbose && '--verbose'].filter(e => e);
}
args.push('react', 'react-dom');
// Install additional template dependencies, if present
const templateDependenciesPath = path.join(
appPath,
'.template.dependencies.json'
);
if (fs.existsSync(templateDependenciesPath)) {
const templateDependencies = require(templateDependenciesPath).dependencies;
args = args.concat(
Object.keys(templateDependencies).map(key => {
return `${key}@${templateDependencies[key]}`;
})
);
fs.unlinkSync(templateDependenciesPath);
}
// Install react and react-dom for backward compatibility with old CRA cli
// which doesn't install react and react-dom along with react-scripts
// or template is presetend (via --internal-testing-template)
if (!isReactInstalled(appPackage) || template) {
console.log(`Installing react and react-dom using ${command}...`);
console.log();
const proc = spawn.sync(command, args, { stdio: 'inherit' });
if (proc.status !== 0) {
console.error(`\`${command} ${args.join(' ')}\` failed`);
return;
}
}
if (tryGitInit(appPath)) {
console.log();
console.log('Initialized a git repository.');
}
// Display the most elegant way to cd.
// This needs to handle an undefined originalDirectory for
// backward compatibility with old global-cli's.
let cdpath;
if (originalDirectory && path.join(originalDirectory, appName) === appPath) {
cdpath = appName;
} else {
cdpath = appPath;
}
// Change displayed command to yarn instead of yarnpkg
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const displayedCommand = useYarn ? 'yarn' : 'npm';
console.log();
console.log(`Success! Created ${appName} at ${appPath}`);
console.log('Inside that directory, you can run several commands:');
console.log();
console.log(chalk.cyan(` ${displayedCommand} start`));
console.log(' Starts the development server.');
console.log();
console.log(
chalk.cyan(` ${displayedCommand} ${useYarn ? '' : 'run '}build`)
);
console.log(' Bundles the app into static files for production.');
console.log();
console.log(chalk.cyan(` ${displayedCommand} test`));
console.log(' Starts the test runner.');
console.log();
console.log(
chalk.cyan(` ${displayedCommand} ${useYarn ? '' : 'run '}eject`)
);
console.log(
' Removes this tool and copies build dependencies, configuration files'
);
console.log(
' and scripts into the app directory. If you do this, you can’t go back!'
);
console.log();
console.log('We suggest that you begin by typing:');
console.log();
console.log(chalk.cyan(' cd'), cdpath);
console.log(` ${chalk.cyan(`${displayedCommand} start`)}`);
if (readmeExists) {
console.log();
console.log(
chalk.yellow(
'You had a `README.md` file, we renamed it to `README.old.md`'
)
);
}
console.log();
console.log('Happy hacking!');
};
function isReactInstalled(appPackage) {
const dependencies = appPackage.dependencies || {};
return (
typeof dependencies.react !== 'undefined' &&
typeof dependencies['react-dom'] !== 'undefined'
);
}