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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @format
* @flow
*/
'use strict';
const {configPromise} = require('./core');
const assertRequiredOptions = require('./util/assertRequiredOptions');
/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses an error
* found when Flow v0.54 was deployed. To see the error delete this comment and
* run Flow. */
const chalk = require('chalk');
const childProcess = require('child_process');
/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses an error
* found when Flow v0.54 was deployed. To see the error delete this comment and
* run Flow. */
const commander = require('commander');
const commands = require('./commands');
const init = require('./init/init');
const path = require('path');
const pkg = require('../package.json');
import type {CommandT} from './commands';
import type {RNConfig} from './core';
commander.version(pkg.version);
const defaultOptParser = val => val;
const handleError = err => {
console.error();
console.error(err.message || err);
console.error();
if (err.stack) {
console.error(err.stack);
console.error();
}
process.exit(1);
};
// Custom printHelpInformation command inspired by internal Commander.js
// one modified to suit our needs
function printHelpInformation() {
let cmdName = this._name;
if (this._alias) {
cmdName = cmdName + '|' + this._alias;
}
const sourceInformation = this.pkg
? [` ${chalk.bold('Source:')} ${this.pkg.name}@${this.pkg.version}`, '']
: [];
let output = [
'',
chalk.bold(chalk.cyan(` react-native ${cmdName} ${this.usage()}`)),
this._description ? ` ${this._description}` : '',
'',
...sourceInformation,
` ${chalk.bold('Options:')}`,
'',
this.optionHelp().replace(/^/gm, ' '),
'',
];
if (this.examples && this.examples.length > 0) {
const formattedUsage = this.examples
.map(example => ` ${example.desc}: \n ${chalk.cyan(example.cmd)}`)
.join('\n\n');
output = output.concat([
chalk.bold(' Example usage:'),
'',
formattedUsage,
]);
}
return output.concat(['', '']).join('\n');
}
function printUnknownCommand(cmdName) {
console.log(
[
'',
cmdName
? chalk.red(` Unrecognized command '${cmdName}'`)
: chalk.red(" You didn't pass any command"),
` Run ${chalk.cyan(
'react-native --help',
)} to see list of all available commands`,
'',
].join('\n'),
);
}
const addCommand = (command: CommandT, cfg: RNConfig) => {
const options = command.options || [];
const cmd = commander
.command(command.name, undefined, {
noHelp: !command.description,
})
.description(command.description)
.action(function runAction() {
const passedOptions = this.opts();
const argv: Array<string> = Array.from(arguments).slice(0, -1);
Promise.resolve()
.then(() => {
assertRequiredOptions(options, passedOptions);
return command.func(argv, cfg, passedOptions);
})
.catch(handleError);
});
cmd.helpInformation = printHelpInformation.bind(cmd);
cmd.examples = command.examples;
cmd.pkg = command.pkg;
options.forEach(opt =>
cmd.option(
opt.command,
opt.description,
opt.parse || defaultOptParser,
typeof opt.default === 'function' ? opt.default(cfg) : opt.default,
),
);
// Placeholder option for --config, which is parsed before any other option,
// but needs to be here to avoid "unknown option" errors when specified
cmd.option('--config [string]', 'Path to the CLI configuration file');
};
async function run() {
const config = await configPromise;
const setupEnvScript = /^win/.test(process.platform)
? 'setup_env.bat'
: 'setup_env.sh';
childProcess.execFileSync(path.join(__dirname, setupEnvScript));
commands.forEach(cmd => addCommand(cmd, config));
commander.parse(process.argv);
const isValidCommand = commands.find(
cmd => cmd.name.split(' ')[0] === process.argv[2],
);
if (!isValidCommand) {
printUnknownCommand(process.argv[2]);
return;
}
if (!commander.args.length) {
commander.help();
}
}
module.exports = {
run: run,
init: init,
};