Github user nikhilkh commented on a diff in the pull request:
https://github.com/apache/cordova-windows/pull/107#discussion_r36817197
--- Diff: template/cordova/lib/log.js ---
@@ -0,0 +1,227 @@
+/*
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the
+ specific language governing permissions and limitations
+ under the License.
+*/
+
+var path = require('path'),
+ et = require('elementtree'),
+ Q = require('q'),
+ cp = require('child_process'),
+ shelljs = require('shelljs'),
+ ROOT = path.join(__dirname, '..', '..');
+
+var appTracingLogInitialState = null,
+ adminLogInitialState = null;
+
+/*
+ * Gets windows AppHost/ApplicationTracing and AppHost/Admin logs
+ * and prints them to console
+ */
+module.exports.run = function() {
+
getLogState('Microsoft-Windows-AppHost/ApplicationTracing').then(function
(state) {
+ appTracingLogInitialState = state;
+ return getLogState('Microsoft-Windows-AppHost/Admin');
+ }).then(function(state) {
+ adminLogInitialState = state;
+ return enableLogging('Microsoft-Windows-AppHost/Admin');
+ }).then(function () {
+ return
enableLogging('Microsoft-Windows-AppHost/ApplicationTracing');
+ }).then(function () {
+ console.log('Now printing logs. To stop, please press Ctrl+C
once.');
+ startLogging('Microsoft-Windows-AppHost/Admin');
+ startLogging('Microsoft-Windows-AppHost/ApplicationTracing');
+ }).catch(function (error) {
+ console.error(error);
+ });
+
+ // Disable logs before exiting
+ process.on('exit', function () {
+ if ((appTracingLogInitialState !== null) &&
!appTracingLogInitialState) {
+ disableLogging('Microsoft-Windows-AppHost/ApplicationTracing');
+ }
+ if ((adminLogInitialState !== null) && !adminLogInitialState) {
+ disableLogging('Microsoft-Windows-AppHost/Admin');
+ }
+ });
+
+ // Catch Ctrl+C event and exit gracefully
+ process.on('SIGINT', function () {
+ process.exit(2);
+ });
+
+ // Catch uncaught exceptions, print trace, then exit gracefully
+ process.on('uncaughtException', function(e) {
+ console.log(e.stack);
+ process.exit(99);
+ });
+};
+
+function startLogging(channel) {
+ var startTime = new Date().toISOString();
+ setInterval(function() {
+ var command = 'wevtutil qe ' + channel + ' /q:"*[System
[(TimeCreated [@SystemTime>\'' + startTime + '\'])]]" /e:root';
+ cp.exec(command, function (error, stdout, stderr) {
+ if (error) {
+ throw new Error('Failed to run wevtutil command. ' +
error);
+ } else {
+ parseEvents(stdout).forEach(function (evt) {
+ startTime = evt.timeCreated;
+ console.log(stringifyEvent(evt));
+ });
+ }
+ });
+ }, 1000);
+}
+
+module.exports.help = function() {
+ console.log('Usage: ' + path.relative(process.cwd(), path.join(ROOT,
'cordova', 'log')));
+ console.log('Continuously prints the windows logs output to the
command line.');
+ process.exit(0);
+};
+
+function getElementValue(et, element, attribute) {
+ var result;
+
+ var found = et.findall(element);
+ if (found.length > 0) {
+ if (!!attribute) {
+ result = found[0].get(attribute);
+ } else {
+ result = found[0].text;
+ }
+ }
+
+ return result;
+}
+
+function parseEvents(output) {
+ var etree = et.parse(output);
+ var events = etree.getroot().findall('./Event');
+ var results = [];
+
+ events.forEach(function (event) {
+ // Get only unhandled exceptions from Admin log
+ if (getElementValue(event, './System/Channel') ===
'Microsoft-Windows-AppHost/Admin' &&
+ typeof getElementValue(event,
'./UserData/WWAUnhandledApplicationException') === 'undefined') {
--- End diff --
Here's the event that got generated:
+ System
- Provider
[ Name] Microsoft-Windows-AppHost
[ Guid] {98E0765D-8C42-44A3-A57B-760D7F93225A}
EventID 127
Version 0
Level 2
Task 8
Opcode 12
Keywords 0x8000000000000001
- TimeCreated
[ SystemTime] 2015-08-12T00:47:00.808688300Z
EventRecordID 100
Correlation
- Execution
[ ProcessID] 10600
[ ThreadID] 14852
Channel Microsoft-Windows-AppHost/Admin
Computer nikhilkh005.redmond.corp.microsoft.com
- Security
[ UserID] S-1-5-21-2127521184-1604012920-1887927527-2523208
- UserData
- WWATerminateApplication
DisplayName HelloCordova
ApplicationName io.cordova.hellocordova
AppUserModelId
io.cordova.hellocordova_h35559jr9hy9m!io.cordova.hellocordova
PackageFullName io.cordova.hellocordova_0.0.1.0_neutral__h35559jr9hy9m
ProcessId 10600
ErrorDescription {"description":"'platform' is
undefined","number":-2146823279,"stack":"ReferenceError: 'platform' is
undefined\n at activationHandler
(ms-appx://io.cordova.hellocordova/www/cordova.js:1320:17)\n at dispatchOne
(ms-appx://microsoft.winjs.2.0/js/base.js:9416:25)\n at dispatchEvent
(ms-appx://microsoft.winjs.2.0/js/base.js:9415:21)\n at drainOneEvent
(ms-appx://microsoft.winjs.2.0/js/base.js:9469:13)\n at drainQueue
(ms-appx://microsoft.winjs.2.0/js/base.js:9486:9)\n at Anonymous function
(ms-appx://microsoft.winjs.2.0/js/base.js:2952:17)\n at state_running.enter
(ms-appx://microsoft.winjs.2.0/js/base.js:2951:13)\n at _setState
(ms-appx://microsoft.winjs.2.0/js/base.js:2667:13)\n at Anonymous function
(ms-appx://microsoft.winjs.2.0/js/base.js:2866:13)\n at _execute
(ms-appx://microsoft.winjs.2.0/js/base.js:2642:13)"}
DocumentFile /www/index.html
StackTrace ReferenceError: 'platform' is undefined at activationHandler
(ms-appx://io.cordova.hellocordova/www/cordova.js:1320:17) at dispatchOne
(ms-appx://microsoft.winjs.2.0/js/base.js:9416:25) at dispatchEvent
(ms-appx://microsoft.winjs.2.0/js/base.js:9415:21) at drainOneEvent
(ms-appx://microsoft.winjs.2.0/js/base.js:9469:13) at drainQueue
(ms-appx://microsoft.winjs.2.0/js/base.js:9486:9) at Anonymous function
(ms-appx://microsoft.winjs.2.0/js/base.js:2952:17) at state_running.enter
(ms-appx://microsoft.winjs.2.0/js/base.js:2951:13) at _setState
(ms-appx://microsoft.winjs.2.0/js/base.js:2667:13) at Anonymous function
(ms-appx://microsoft.winjs.2.0/js/base.js:2866:13) at _execute
(ms-appx://microsoft.winjs.2.0/js/base.js:2642:13)
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