92 lines
1.8 KiB
JavaScript
92 lines
1.8 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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*/
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'use strict';
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const chalk = require('chalk');
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const child_process = require('child_process');
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const os = require('os');
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const path = require('path');
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/**
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* Starts iOS device syslog tail
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*/
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function logIOS() {
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return new Promise((resolve, reject) => {
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_logIOS(resolve, reject);
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});
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}
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function _logIOS() {
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let rawDevices;
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try {
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rawDevices = child_process.execFileSync(
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'xcrun',
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['simctl', 'list', 'devices', '--json'],
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{encoding: 'utf8'},
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);
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} catch (e) {
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console.log(
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chalk.red(
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'xcrun invocation failed. Please check that Xcode is installed.',
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),
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);
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return Promise.reject(e);
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}
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const {devices} = JSON.parse(rawDevices);
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const device = _findAvailableDevice(devices);
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if (device === undefined) {
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console.log(chalk.red('No active iOS device found'));
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return Promise.reject();
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}
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return tailDeviceLogs(device.udid);
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}
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function _findAvailableDevice(devices) {
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for (const key of Object.keys(devices)) {
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for (const device of devices[key]) {
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if (device.availability === '(available)' && device.state === 'Booted') {
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return device;
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}
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}
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}
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}
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function tailDeviceLogs(udid) {
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const logDir = path.join(
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os.homedir(),
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'Library',
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'Logs',
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'CoreSimulator',
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udid,
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'asl',
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);
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const log = child_process.spawnSync(
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'syslog',
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['-w', '-F', 'std', '-d', logDir],
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{stdio: 'inherit'},
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);
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if (log.error !== null) {
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console.log(chalk.red('syslog invocation failed.'));
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return Promise.reject(log.error);
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}
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}
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module.exports = {
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name: 'log-ios',
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description: 'starts iOS device syslog tail',
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func: logIOS,
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};
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