[
https://issues.apache.org/jira/browse/CB-8936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14692688#comment-14692688
]
ASF GitHub Bot commented on CB-8936:
------------------------------------
Github user nikhilkh commented on a diff in the pull request:
https://github.com/apache/cordova-windows/pull/107#discussion_r36817771
--- 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') {
+ return;
+ }
+
+ var result = {
+ channel: getElementValue(event, './System/Channel'),
+ timeCreated: getElementValue(event, './System/TimeCreated',
'SystemTime'),
+ pid: getElementValue(event, './System/Execution', 'ProcessID'),
+ proc: getElementValue(event,
'./UserData/WWADevToolBarLog/DisplayName'),
+ source: getElementValue(event,
'./UserData/WWADevToolBarLog/Source'),
+ documentFile: getElementValue(event,
'./UserData/WWADevToolBarLog/DocumentFile') ||
+ getElementValue(event,
'./UserData/WWAUnhandledApplicationException/DocumentFile'),
+ line: getElementValue(event,
'./UserData/WWADevToolBarLog/Line'),
+ column: getElementValue(event,
'./UserData/WWADevToolBarLog/Column'),
+ sourceFile: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/SourceFile'),
+ sourceLine: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/SourceLine'),
+ sourceColumn: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/SourceColumn'),
+ message: getElementValue(event,
'./UserData/WWADevToolBarLog/Message'),
+ displayName: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/DisplayName'),
+ appName: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/ApplicationName'),
+ errorType: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/ErrorType'),
+ errorDescription: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/ErrorDescription'),
+ stackTrace: getElementValue(event,
'./UserData/WWAUnhandledApplicationException/StackTrace'),
+ };
+
+ results.push(result);
+ });
+
+ return results;
+}
+
+function formatField(event, fieldName, fieldShownName, offset) {
+ var whitespace = '', // to align all field values
+ multiLineWhitespace = ' '; // to align multiline fields (i.e.
Stack Trace) correctly
+ for (var i = 0; i < offset; i++) {
+ if (i >= fieldShownName.length) {
+ whitespace += ' ';
+ }
+ multiLineWhitespace += ' ';
+ }
+
+ if (event.hasOwnProperty(fieldName) && (typeof event[fieldName] !==
'undefined')) {
+ event[fieldName] = event[fieldName].replace(/\n\s*/g, '\n' +
multiLineWhitespace);
+ return ('\n' + fieldShownName + ':' + whitespace +
event[fieldName]).replace(/\n$/m, '');
+ }
+ return '';
+}
+
+function stringifyEvent(event) {
+ if (typeof event === 'undefined') {
+ return;
+ }
+
+ var result = '',
+ offset = 18;
+
+ result += formatField(event, 'channel', 'Channel', offset);
--- End diff --
On 2nd thoughts - this can be refined later - lets get it out there.
> Surface platform-specific logs in buildbot
> ------------------------------------------
>
> Key: CB-8936
> URL: https://issues.apache.org/jira/browse/CB-8936
> Project: Apache Cordova
> Issue Type: Task
> Components: Medic
> Reporter: Alexander Sorokin
> Assignee: Alexander Sorokin
>
> Platform specific logs (e.g. logcat for android, stderr.log and stdin.log for
> iOS etc.) should be gathered and displayed in buildbot.
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