dart-sdk/tools/bots/update_flakiness.dart
Devon Carew e9f7cab5ca [tools] migrate the rest of tools/ to null safety
Change-Id: Ieec55a99e9020f8f3962654e07518726d9f66fc4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/249540
Commit-Queue: Devon Carew <devoncarew@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
2022-06-24 16:38:39 +00:00

118 lines
4.3 KiB
Dart
Executable file

#!/usr/bin/env dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Update the flakiness data with a set of fresh results.
import 'dart:convert';
import 'dart:io';
import 'package:args/args.dart';
import 'package:test_runner/bot_results.dart';
void main(List<String> args) async {
final parser = ArgParser();
parser.addFlag('help', help: 'Show the program usage.', negatable: false);
parser.addOption('input', abbr: 'i', help: 'Input flakiness file.');
parser.addOption('output', abbr: 'o', help: 'Output flakiness file.');
parser.addOption('build-id', help: 'Logdog ID of this buildbot run');
parser.addOption('commit', help: 'Commit hash of this buildbot run');
parser.addFlag('no-forgive', help: 'Don\'t remove any flaky records');
final options = parser.parse(args);
if (options['help']) {
print('''
Usage: update_flakiness.dart [OPTION]... [RESULT-FILE]...
Update the flakiness data with a set of fresh results.
The options are as follows:
${parser.usage}''');
return;
}
final parameters = options.rest;
// Load the existing flakiness data, if any.
final data = options['input'] != null
? await loadResultsMap(options['input'])
: <String, Map<String, dynamic>>{};
final resultsForInactiveFlakiness = {
for (final flakyTest in data.keys)
if (data[flakyTest]!['active'] == false) flakyTest: <String>{}
};
// Incrementally update the flakiness data with each observed result.
for (final path in parameters) {
final results = await loadResults(path);
for (final resultObject in results) {
final String configuration = resultObject['configuration'] /*!*/;
final String name = resultObject['name'] /*!*/;
final String result = resultObject['result'] /*!*/;
final key = '$configuration:$name';
resultsForInactiveFlakiness[key]?.add(result);
Map<String, dynamic> newMap() => {};
final testData = data.putIfAbsent(key, newMap);
testData['configuration'] = configuration;
testData['name'] = name;
testData['expected'] = resultObject['expected'];
final outcomes = testData.putIfAbsent('outcomes', () => []);
final time = DateTime.now().toIso8601String();
if (!outcomes.contains(result)) {
outcomes
..add(result)
..sort();
testData['last_new_result_seen'] = time;
}
if (testData['current'] == result) {
testData['current_counter']++;
} else {
testData['current'] = result;
testData['current_counter'] = 1;
}
final occurrences = testData.putIfAbsent('occurrences', newMap);
occurrences.putIfAbsent(result, () => 0);
occurrences[result]++;
final firstSeen = testData.putIfAbsent('first_seen', newMap);
firstSeen.putIfAbsent(result, () => time);
final lastSeen = testData.putIfAbsent('last_seen', newMap);
lastSeen[result] = time;
final matches = testData.putIfAbsent('matches', newMap);
matches[result] = resultObject['matches'];
if (options['build-id'] != null) {
final buildIds = testData.putIfAbsent('build_ids', newMap);
buildIds[result] = options['build-id'];
}
if (options['commit'] != null) {
final commits = testData.putIfAbsent('commits', newMap);
commits[result] = options['commit'];
}
}
}
// Write out the new flakiness data.
final sink =
options['output'] != null ? File(options['output']).openWrite() : stdout;
final keys = data.keys.toList()..sort();
for (final key in keys) {
final testData = data[key]!;
if (testData['outcomes'].length < 2) continue;
// Reactivate inactive flaky results that are flaky again.
if (testData['active'] == false) {
if (resultsForInactiveFlakiness[key]!.length > 1) {
testData['active'] = true;
testData['reactivation_count'] =
(testData['reactivation_count'] ?? 0) + 1;
}
} else if (!options['no-forgive'] && testData['current_counter'] >= 100) {
// Forgive tests that have been stable for 100 builds.
testData['active'] = false;
} else {
testData['active'] = true;
}
sink.writeln(jsonEncode(testData));
}
}