78 lines
1.6 KiB
JavaScript
78 lines
1.6 KiB
JavaScript
'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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const Promise = require('promise');
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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(resolve, reject) {
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let rawDevices;
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try {
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rawDevices = child_process.execFileSync(
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'xcrun', ['simctl', 'list', 'devices', '--json'], {encoding: 'utf8'}
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);
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} catch (e) {
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console.log(chalk.red(
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'xcrun invocation failed. Please check that Xcode is installed.'
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));
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reject(e);
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return;
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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(
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'No active iOS device found'
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));
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reject();
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}
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tailDeviceLogs(device.udid, reject);
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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, reject) {
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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 =
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child_process.spawnSync('syslog', ['-w', '-F', 'std', '-d', logDir], {stdio: 'inherit'});
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if (log.error !== null) {
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console.log(chalk.red(
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'syslog invocation failed.'
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));
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reject(log.error);
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}
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}
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module.exports = logIOS;
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