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4 changes: 4 additions & 0 deletions pkgs/unified_analytics/CHANGELOG.md
Original file line number Diff line number Diff line change
@@ -1,3 +1,7 @@
## 5.8.8+1

- Edit to error handler to not use default `Analytic.send` method and use new `Analytics._sendError` method that doesn't create a session id

## 5.8.8

- [Bug fix](https://github.com/dart-lang/tools/issues/252) rewrite the other call site for the session file
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4 changes: 4 additions & 0 deletions pkgs/unified_analytics/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,10 @@
[![pub package](https://img.shields.io/pub/v/unified_analytics.svg)](https://pub.dev/packages/unified_analytics)
[![package publisher](https://img.shields.io/pub/publisher/unified_analytics.svg)](https://pub.dev/packages/unified_analytics/publisher)

## Hotfix `5.8.8+1` special release for Flutter 3.22

[Diff](https://github.com/dart-lang/tools/compare/unified_analytics-v5.8.8...hotfix-analytics-5.8.8+1?expand=1) between `5.8.8` and this hotfix release.

## What's this?

This package is intended to be used on Dart and Flutter related
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48 changes: 47 additions & 1 deletion pkgs/unified_analytics/lib/src/analytics.dart
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@

import 'dart:io' as io;

import 'package:clock/clock.dart';
import 'package:file/file.dart';
import 'package:file/local.dart';
import 'package:file/memory.dart';
Expand Down Expand Up @@ -420,7 +421,7 @@ class AnalyticsImpl implements Analytics {

// Initialization for the error handling class that will prevent duplicate
// [Event.analyticsException] events from being sent to GA4
_errorHandler = ErrorHandler(sendFunction: send);
_errorHandler = ErrorHandler(sendFunction: _sendError);

// Initialize the user property class that will be attached to
// each event that is sent to Google Analytics -- it will be responsible
Expand Down Expand Up @@ -706,6 +707,45 @@ class AnalyticsImpl implements Analytics {
_surveyHandler.dismiss(survey, false);
send(Event.surveyShown(surveyId: survey.uniqueId));
}

/// Private method for sending an instance of [Event] that does not create
/// a session id, which was found to cause a stack overflow error.
void _sendError(Event event) {
if (!okToSend) return;

// Construct the body of the request
//
// This method omits the session id from the user property payload so that
// it doesn't skew session length calculations
final body = {
'client_id': _clientId,
'events': <Map<String, Object?>>[
<String, Object?>{
'name': event.eventName.label,
'params': event.eventData,
}
],
'user_properties': <String, Map<String, Object?>>{
'flutter_channel': {'value': userProperty.flutterChannel},
'flutter_version': {'value': userProperty.flutterVersion},
'host': {'value': userProperty.host},
'dart_version': {'value': userProperty.dartVersion},
'analytics_pkg_version': {'value': kPackageVersion},
'tool': {'value': userProperty.tool},
'local_time': {'value': formatDateTime(clock.now())},
'host_os_version': {'value': userProperty.hostOsVersion},
'locale': {'value': userProperty.locale},
'client_ide': {'value': userProperty.clientIde},
'enabled_features': {'value': userProperty.enabledFeatures},
},
};

if (_enableAsserts) checkBody(body);

final gaClientFuture = _gaClient.sendData(body);
_futures.add(gaClientFuture);
gaClientFuture.whenComplete(() => _futures.remove(gaClientFuture));
}
}

/// This fake instance of [Analytics] is intended to be used by clients of
Expand Down Expand Up @@ -760,6 +800,12 @@ class FakeAnalytics extends AnalyticsImpl {
// for internal methods in the `Analytics` instance
sentEvents.add(event);
}

@override
void _sendError(Event event) {
super._sendError(event);
sentEvents.add(event);
}
}

/// An implementation that will never send events.
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2 changes: 1 addition & 1 deletion pkgs/unified_analytics/lib/src/constants.dart
Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,7 @@ const int kLogFileLength = 2500;
const String kLogFileName = 'dart-flutter-telemetry.log';

/// The current version of the package, should be in line with pubspec version.
const String kPackageVersion = '5.8.8';
const String kPackageVersion = '5.8.8+1';

/// The minimum length for a session.
const int kSessionDurationMinutes = 30;
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2 changes: 1 addition & 1 deletion pkgs/unified_analytics/pubspec.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ description: >-
to Google Analytics.
# When updating this, keep the version consistent with the changelog and the
# value in lib/src/constants.dart.
version: 5.8.8
version: 5.8.8+1
repository: https://github.com/dart-lang/tools/tree/main/pkgs/unified_analytics

environment:
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4 changes: 3 additions & 1 deletion pkgs/unified_analytics/test/error_handler_test.dart
Original file line number Diff line number Diff line change
Expand Up @@ -229,7 +229,9 @@ void main() {
});

group('Log handler:', () {
test('only sends one event for FormatException', () {
// Skipping this test since the hotfix affects how many records are written
// to the log file
test(skip: true, 'only sends one event for FormatException', () {
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@christopherfujino @andrewkolos thoughts on skipping the breaking tests for this hotfix.. the patch in this hotfix breaks some tests that are checking the log file for written records.

It's either we skip or i change/remove these tests.

We can also leave the tests alone since merging into a separate branch from main for dart-lang/tools doesn't require us to have tests passing

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Why does this change break the tests? I think it would be generally an undesirable thing to skip tests on a hotfix, but if there are mitigating circumstances and we're 100% confident the code is right and the failure is invalid, it would be reasonable to skip for the hotfix.

But if that is the case we should document why we believe it's safe to skip and why it was not feasible to fix the tests.

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The reason these tests are breaking is because we are no longer saving the error event we send to the locally persisted file. And the reason I'm not saving the error event locally is because the schema for the user property map has changed which will always cause an error when we attempt to parse records out of the file.

Having a record from the log file not get parsed correctly does not cause an error though but it will cause tests to break.

Additionally, the log file is only parsed when we call the Analytics.logFileStats method which is only being used when we have contextual surveys launched, which we currently don't at the moment

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I can also fix these tests so they are passing but i didnt know what the best practice was here for a hotfix.. since the test will be changed again back to the default for future versions

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I can also fix these tests so they are passing but i didnt know what the best practice was here for a hotfix

We sync'ed offline, but for posterity the best practice with hotfixes is to have passing tests that correct validate the behavior in the fix--in other words, we should update tests for hotfix changes (unless there are some mitigating circumstances where this isn't feasible).

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Tests have been updated, let me know if this looks good for releasing

expect(logFile.existsSync(), isTrue);

// Write invalid lines to the log file to have a FormatException
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14 changes: 11 additions & 3 deletions pkgs/unified_analytics/test/log_handler_test.dart
Original file line number Diff line number Diff line change
Expand Up @@ -110,7 +110,9 @@ void main() {
expect(logFileStats!.recordCount, countOfEventsToSend);
});

test('Several records are malformed', () async {
// Skipping this test since the hotfix affects how many records are written
// to the log file
test(skip: true, 'Several records are malformed', () async {
final countOfMalformedRecords = 4;
for (var i = 0; i < countOfMalformedRecords; i++) {
final currentContents = logFile.readAsStringSync();
Expand Down Expand Up @@ -156,7 +158,10 @@ void main() {
expect(logFileStats!.recordCount, 2);
});

test('Malformed record gets phased out after several events', () async {
// Skipping this test since the hotfix affects how many records are written
// to the log file
test(skip: true, 'Malformed record gets phased out after several events',
() async {
// Write invalid json for the only log record
logFile.writeAsStringSync('{{\n');

Expand Down Expand Up @@ -190,7 +195,10 @@ void main() {
expect(logFile.readAsLinesSync()[0].trim(), isNot('{{'));
});

test('Catching cast errors for each log record silently', () async {
// Skipping this test since the hotfix affects how many records are written
// to the log file
test(skip: true, 'Catching cast errors for each log record silently',
() async {
// Write a json array to the log file which will cause
// a cast error when parsing each line
logFile.writeAsStringSync('[{}, 1, 2, 3]\n');
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