GoScrobble/web/node_modules/react-scripts/scripts/init.js

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// @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('react-dev-utils/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');
const verifyTypeScriptSetup = require('./utils/verifyTypeScriptSetup');
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() {
try {
execSync('git --version', { stdio: 'ignore' });
if (isInGitRepository() || isInMercurialRepository()) {
return false;
}
execSync('git init', { stdio: 'ignore' });
return true;
} catch (e) {
console.warn('Git repo not initialized', e);
return false;
}
}
function tryGitCommit(appPath) {
try {
execSync('git add -A', { stdio: 'ignore' });
execSync('git commit -m "Initialize project using Create React App"', {
stdio: 'ignore',
});
return true;
} catch (e) {
// We couldn't commit in already initialized git repo,
// 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.
console.warn('Git commit not created', e);
console.warn('Removing .git directory...');
try {
// unlinkSync() doesn't work on directories.
fs.removeSync(path.join(appPath, '.git'));
} catch (removeErr) {
// Ignore.
}
return false;
}
}
module.exports = function (
appPath,
appName,
verbose,
originalDirectory,
templateName
) {
const appPackage = require(path.join(appPath, 'package.json'));
const useYarn = fs.existsSync(path.join(appPath, 'yarn.lock'));
if (!templateName) {
console.log('');
console.error(
`A template was not provided. This is likely because you're using an outdated version of ${chalk.cyan(
'create-react-app'
)}.`
);
console.error(
`Please note that global installs of ${chalk.cyan(
'create-react-app'
)} are no longer supported.`
);
console.error(
`You can fix this by running ${chalk.cyan(
'npm uninstall -g create-react-app'
)} or ${chalk.cyan(
'yarn global remove create-react-app'
)} before using ${chalk.cyan('create-react-app')} again.`
);
return;
}
const templatePath = path.dirname(
require.resolve(`${templateName}/package.json`, { paths: [appPath] })
);
const templateJsonPath = path.join(templatePath, 'template.json');
let templateJson = {};
if (fs.existsSync(templateJsonPath)) {
templateJson = require(templateJsonPath);
}
const templatePackage = templateJson.package || {};
// TODO: Deprecate support for root-level `dependencies` and `scripts` in v5.
// These should now be set under the `package` key.
if (templateJson.dependencies || templateJson.scripts) {
console.log();
console.log(
chalk.yellow(
'Root-level `dependencies` and `scripts` keys in `template.json` are deprecated.\n' +
'This template should be updated to use the new `package` key.'
)
);
console.log('For more information, visit https://cra.link/templates');
}
if (templateJson.dependencies) {
templatePackage.dependencies = templateJson.dependencies;
}
if (templateJson.scripts) {
templatePackage.scripts = templateJson.scripts;
}
// Keys to ignore in templatePackage
const templatePackageBlacklist = [
'name',
'version',
'description',
'keywords',
'bugs',
'license',
'author',
'contributors',
'files',
'browser',
'bin',
'man',
'directories',
'repository',
'peerDependencies',
'bundledDependencies',
'optionalDependencies',
'engineStrict',
'os',
'cpu',
'preferGlobal',
'private',
'publishConfig',
];
// Keys from templatePackage that will be merged with appPackage
const templatePackageToMerge = ['dependencies', 'scripts'];
// Keys from templatePackage that will be added to appPackage,
// replacing any existing entries.
const templatePackageToReplace = Object.keys(templatePackage).filter(key => {
return (
!templatePackageBlacklist.includes(key) &&
!templatePackageToMerge.includes(key)
);
});
// Copy over some of the devDependencies
appPackage.dependencies = appPackage.dependencies || {};
// Setup the script rules
const templateScripts = templatePackage.scripts || {};
appPackage.scripts = Object.assign(
{
start: 'react-scripts start',
build: 'react-scripts build',
test: 'react-scripts test',
eject: 'react-scripts eject',
},
templateScripts
);
// Update scripts for Yarn users
if (useYarn) {
appPackage.scripts = Object.entries(appPackage.scripts).reduce(
(acc, [key, value]) => ({
...acc,
[key]: value.replace(/(npm run |npm )/, 'yarn '),
}),
{}
);
}
// Setup the eslint config
appPackage.eslintConfig = {
extends: 'react-app',
};
// Setup the browsers list
appPackage.browserslist = defaultBrowsers;
// Add templatePackage keys/values to appPackage, replacing existing entries
templatePackageToReplace.forEach(key => {
appPackage[key] = templatePackage[key];
});
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 templateDir = path.join(templatePath, 'template');
if (fs.existsSync(templateDir)) {
fs.copySync(templateDir, appPath);
} else {
console.error(
`Could not locate supplied template: ${chalk.green(templateDir)}`
);
return;
}
// modifies README.md commands based on user used package manager.
if (useYarn) {
try {
const readme = fs.readFileSync(path.join(appPath, 'README.md'), 'utf8');
fs.writeFileSync(
path.join(appPath, 'README.md'),
readme.replace(/(npm run |npm )/g, 'yarn '),
'utf8'
);
} catch (err) {
// Silencing the error. As it fall backs to using default npm commands.
}
}
const gitignoreExists = fs.existsSync(path.join(appPath, '.gitignore'));
if (gitignoreExists) {
// Append if there's already a `.gitignore` file there
const data = fs.readFileSync(path.join(appPath, 'gitignore'));
fs.appendFileSync(path.join(appPath, '.gitignore'), data);
fs.unlinkSync(path.join(appPath, 'gitignore'));
} else {
// Rename gitignore after the fact to prevent npm from renaming it to .npmignore
// See: https://github.com/npm/npm/issues/1862
fs.moveSync(
path.join(appPath, 'gitignore'),
path.join(appPath, '.gitignore'),
[]
);
}
// Initialize git repo
let initializedGit = false;
if (tryGitInit()) {
initializedGit = true;
console.log();
console.log('Initialized a git repository.');
}
let command;
let remove;
let args;
if (useYarn) {
command = 'yarnpkg';
remove = 'remove';
args = ['add'];
} else {
command = 'npm';
remove = 'uninstall';
args = ['install', '--save', verbose && '--verbose'].filter(e => e);
}
// Install additional template dependencies, if present.
const dependenciesToInstall = Object.entries({
...templatePackage.dependencies,
...templatePackage.devDependencies,
});
if (dependenciesToInstall.length) {
args = args.concat(
dependenciesToInstall.map(([dependency, version]) => {
return `${dependency}@${version}`;
})
);
}
// Install react and react-dom for backward compatibility with old CRA cli
// which doesn't install react and react-dom along with react-scripts
if (!isReactInstalled(appPackage)) {
args = args.concat(['react', 'react-dom']);
}
// Install template dependencies, and react and react-dom if missing.
if ((!isReactInstalled(appPackage) || templateName) && args.length > 1) {
console.log();
console.log(`Installing template dependencies using ${command}...`);
const proc = spawn.sync(command, args, { stdio: 'inherit' });
if (proc.status !== 0) {
console.error(`\`${command} ${args.join(' ')}\` failed`);
return;
}
}
if (args.find(arg => arg.includes('typescript'))) {
console.log();
verifyTypeScriptSetup();
}
// Remove template
console.log(`Removing template package using ${command}...`);
console.log();
const proc = spawn.sync(command, [remove, templateName], {
stdio: 'inherit',
});
if (proc.status !== 0) {
console.error(`\`${command} ${args.join(' ')}\` failed`);
return;
}
// Create git commit if git repo was initialized
if (initializedGit && tryGitCommit(appPath)) {
console.log();
console.log('Created git commit.');
}
// 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
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 cant 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'
);
}