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| //#!/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 /!\
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// react-native-cli 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 react-native-cli is to init the repository and then
// forward all the commands to the local version of react-native.
//
// If you need to add a new command, please add it to local-cli/.
//
// The only reason to modify this file is to add more warnings and
// troubleshooting information for the `react-native init` command.
//
// Do not make breaking changes! We absolutely don't want to have to
// tell people to update their global version of react-native-cli.
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// /!\ DO NOT MODIFY THIS FILE /!\
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
'use strict';
var fs = require('fs');
var path = require('path');
var exec = require('child_process').exec;
var execSync = require('child_process').execSync;
var chalk = require('chalk');
var prompt = require('prompt');
var semver = require('semver');
/**
* Used arguments:
* -v --version - to print current version of react-native-cli and react-native dependency
* if you are in a RN app folder
* init - to create a new project and npm install it
* --verbose - to print logs while init
* --version <alternative react-native package> - override default (https://registry.npmjs.org/react-native@latest),
* package to install, examples:
* - "0.22.0-rc1" - A new app will be created using a specific version of React Native from npm repo
* - "https://registry.npmjs.org/react-native/-/react-native-0.20.0.tgz" - a .tgz archive from any npm repo
* - "/Users/home/react-native/react-native-0.22.0.tgz" - for package prepared with `npm pack`, useful for e2e tests
*/
var options = require('minimist')(process.argv.slice(2));
var CLI_MODULE_PATH = function() {
return path.resolve(
process.cwd(),
'node_modules',
'react-native',
'cli.js'
);
};
var REACT_NATIVE_PACKAGE_JSON_PATH = function() {
return path.resolve(
process.cwd(),
'node_modules',
'react-native',
'package.json'
);
};
Iif (options._.length === 0 && (options.v || options.version)) {
printVersionsAndExit(REACT_NATIVE_PACKAGE_JSON_PATH());
}
// Use Yarn if available, it's much faster than the npm client.
// Return the version of yarn installed on the system, null if yarn is not available.
function getYarnVersionIfAvailable() {
var yarnVersion;
try {
// execSync returns a Buffer -> convert to string
if (process.platform.startsWith('win')) {
yarnVersion = (execSync('yarn --version').toString() || '').trim();
} else {
yarnVersion = (execSync('yarn --version 2>/dev/null').toString() || '').trim();
}
} catch (error) {
return null;
}
// yarn < 0.16 has a 'missing manifest' bug
try {
if (semver.gte(yarnVersion, '0.16.0')) {
return yarnVersion;
} else {
return null;
}
} catch (error) {
console.error('Cannot parse yarn version: ' + yarnVersion);
return null;
}
}
var cli;
var cliPath = CLI_MODULE_PATH();
Iif (fs.existsSync(cliPath)) {
cli = require(cliPath);
}
var commands = options._;
Iif (cli) {
cli.run();
} else {
Iif (options._.length === 0 && (options.h || options.help)) {
console.log([
'',
' Usage: react-native [command] [options]',
'',
'',
' Commands:',
'',
' init <ProjectName> [options] generates a new project and installs its dependencies',
'',
' Options:',
'',
' -h, --help output usage information',
' -v, --version output the version number',
'',
].join('\n'));
process.exit(0);
}
Eif (commands.length === 0) {
console.error(
'You did not pass any commands, run `react-native --help` to see a list of all available commands.'
);
process.exit(1);
}
switch (commands[0]) {
case 'init':
if (!commands[1]) {
console.error(
'Usage: react-native init <ProjectName> [--verbose]'
);
process.exit(1);
} else {
init(commands[1], options);
}
break;
default:
console.error(
'Command `%s` unrecognized. ' +
'Make sure that you have run `npm install` and that you are inside a react-native project.',
commands[0]
);
process.exit(1);
break;
}
}
function validateProjectName(name) {
if (!name.match(/^[$A-Z_][0-9A-Z_$]*$/i)) {
console.error(
'"%s" is not a valid name for a project. Please use a valid identifier ' +
'name (alphanumeric).',
name
);
process.exit(1);
}
if (name === 'React') {
console.error(
'"%s" is not a valid name for a project. Please do not use the ' +
'reserved word "React".',
name
);
process.exit(1);
}
}
/**
* @param name Project name, e.g. 'AwesomeApp'.
* @param options.verbose If true, will run 'npm install' in verbose mode (for debugging).
* @param options.version Version of React Native to install, e.g. '0.38.0'.
* @param options.npm If true, always use the npm command line client,
* don't use yarn even if available.
*/
function init(name, options) {
validateProjectName(name);
if (fs.existsSync(name)) {
createAfterConfirmation(name, options);
} else {
createProject(name, options);
}
}
function createAfterConfirmation(name, options) {
prompt.start();
var property = {
name: 'yesno',
message: 'Directory ' + name + ' already exists. Continue?',
validator: /y[es]*|n[o]?/,
warning: 'Must respond yes or no',
default: 'no'
};
prompt.get(property, function (err, result) {
if (result.yesno[0] === 'y') {
createProject(name, options);
} else {
console.log('Project initialization canceled');
process.exit();
}
});
}
function createProject(name, options) {
var root = path.resolve(name);
var projectName = path.basename(root);
console.log(
'This will walk you through creating a new React Native project in',
root
);
if (!fs.existsSync(root)) {
fs.mkdirSync(root);
}
var packageJson = {
name: projectName,
version: '0.0.1',
private: true,
scripts: {
start: 'node node_modules/react-native/local-cli/cli.js start'
}
};
fs.writeFileSync(path.join(root, 'package.json'), JSON.stringify(packageJson));
process.chdir(root);
run(root, projectName, options);
}
function getInstallPackage(rnPackage) {
var packageToInstall = 'react-native';
var isValidSemver = semver.valid(rnPackage);
if (isValidSemver) {
packageToInstall += '@' + isValidSemver;
} else if (rnPackage) {
// for tar.gz or alternative paths
packageToInstall = rnPackage;
}
return packageToInstall;
}
function run(root, projectName, options) {
// E.g. '0.38' or '/path/to/archive.tgz'
const rnPackage = options.version;
const forceNpmClient = options.npm;
const yarnVersion = (!forceNpmClient) && getYarnVersionIfAvailable();
var installCommand;
if (options.installCommand) {
// In CI environments it can be useful to provide a custom command,
// to set up and use an offline mirror for installing dependencies, for example.
installCommand = options.installCommand;
} else {
if (yarnVersion) {
console.log('Using yarn v' + yarnVersion);
console.log('Installing ' + getInstallPackage(rnPackage) + '...');
installCommand = 'yarn add ' + getInstallPackage(rnPackage) + ' --exact';
if (options.verbose) {
installCommand += ' --verbose';
}
} else {
console.log('Installing ' + getInstallPackage(rnPackage) + '...');
if (!forceNpmClient) {
console.log('Consider installing yarn to make this faster: https://yarnpkg.com');
}
installCommand = 'npm install --save --save-exact ' + getInstallPackage(rnPackage);
if (options.verbose) {
installCommand += ' --verbose';
}
}
}
try {
execSync(installCommand, {stdio: 'inherit'});
} catch (err) {
console.error(err);
console.error('Command `' + installCommand + '` failed.');
process.exit(1);
}
checkNodeVersion();
cli = require(CLI_MODULE_PATH());
cli.init(root, projectName);
}
function checkNodeVersion() {
var packageJson = require(REACT_NATIVE_PACKAGE_JSON_PATH());
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 React Native requires %s. ' +
'Please use a supported version of Node.\n' +
'See https://facebook.github.io/react-native/docs/getting-started.html'
),
process.version,
packageJson.engines.node);
}
}
function printVersionsAndExit(reactNativePackageJsonPath) {
console.log('react-native-cli: ' + require('./package.json').version);
try {
console.log('react-native: ' + require(reactNativePackageJsonPath).version);
} catch (e) {
console.log('react-native: n/a - not inside a React Native project directory');
}
process.exit();
}
|