aff02b2ca1
Summary: per title, for reasons see next diff :) Reviewed By: passy Differential Revision: D29327501 fbshipit-source-id: 548d943e90769af478232d3031d916fb399a067a
99 lines
2.7 KiB
TypeScript
99 lines
2.7 KiB
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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import type {CrashLog} from './index';
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import fs from 'fs';
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import os from 'os';
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import path from 'path';
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import {promisify} from 'util';
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import {UNKNOWN_CRASH_REASON} from './crash-utils';
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export function parseIosCrash(content: string) {
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const regex = /Exception Type: *\w*/;
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const arr = regex.exec(content);
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const exceptionString = arr ? arr[0] : '';
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const exceptionRegex = /\w*$/;
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const tmp = exceptionRegex.exec(exceptionString);
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const exception = tmp && tmp[0].length ? tmp[0] : UNKNOWN_CRASH_REASON;
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const dateRegex = /Date\/Time: *[\w\s\.:-]*/;
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const dateArr = dateRegex.exec(content);
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const dateString = dateArr ? dateArr[0] : '';
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const dateRegex2 = /[\w\s\.:-]*$/;
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const tmp1 = dateRegex2.exec(dateString);
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const extractedDateString: string | null =
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tmp1 && tmp1[0].length ? tmp1[0] : null;
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const date = extractedDateString
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? new Date(extractedDateString).getTime()
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: Date.now();
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const crash: CrashLog = {
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callstack: content,
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name: exception,
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reason: exception,
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date,
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};
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return crash;
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}
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export function shouldShowiOSCrashNotification(
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serial: string,
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content: string,
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): boolean {
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const appPath = parsePath(content);
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if (!appPath || !appPath.includes(serial)) {
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// Do not show notifications for the app which are not running on this device
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return false;
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}
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return true;
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}
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export function parsePath(content: string): string | null {
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const regex = /(?<=.*Path: *)[^\n]*/;
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const arr = regex.exec(content);
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if (!arr || arr.length <= 0) {
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return null;
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}
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const path = arr[0];
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return path.trim();
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}
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export function addFileWatcherForiOSCrashLogs(
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serial: string,
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reportCrash: (payload: CrashLog) => void,
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) {
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const dir = path.join(os.homedir(), 'Library', 'Logs', 'DiagnosticReports');
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if (!fs.existsSync(dir)) {
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// Directory doesn't exist
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return;
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}
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return fs.watch(dir, (_eventType, filename) => {
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// We just parse the crash logs with extension `.crash`
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const checkFileExtension = /.crash$/.exec(filename);
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if (!filename || !checkFileExtension) {
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return;
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}
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const filepath = path.join(dir, filename);
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promisify(fs.exists)(filepath).then((exists) => {
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if (!exists) {
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return;
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}
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fs.readFile(filepath, 'utf8', function (err, data) {
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if (err) {
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console.warn('Failed to read crash file', err);
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return;
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}
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if (shouldShowiOSCrashNotification(serial, data)) {
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reportCrash(parseIosCrash(data));
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}
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});
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});
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});
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}
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