Add status_summary and current_summary to tools/gardening

tools/gardening/lib/current_summary.dart

Index: tools/gardening/lib/current_summary.dart
diff --git a/tools/gardening/lib/current_summary.dart b/tools/gardening/lib/current_summary.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ff5e19cdc49b13167a43d331d3a098f96487122b
--- /dev/null
+++ b/tools/gardening/lib/current_summary.dart
@@ -0,0 +1,75 @@
+// Copyright (c) 2017, 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.
+
+/// Collects the test results for all build bots in [buildGroups] for tests
+/// that mention one of the test names given as argument.
+///
+/// The results are currently pulled from the second to last build since the
+/// last build might not have completed yet.
+
+import 'dart:math';
+import 'dart:io';
+import 'compare_failures.dart';
+import 'src/buildbot_data.dart';
+import 'src/buildbot_structures.dart';
+import 'src/util.dart';
+
+main(List<String> args) async {
+  if (args.length == 0) {
+    print('Usage: current_summary <test-name1> [<test-name2> ...]');
+    exit(1);
+  }
+  int maxStatusWidth = 0;
+  int maxConfigWidth = 0;
+
+  HttpClient client = new HttpClient();
+  Map<String, Map<BuildUri, TestStatus>> resultMap =
+      <String, Map<BuildUri, TestStatus>>{};
+  for (BuildGroup group in buildGroups) {
+    // TODO(johnniwinther): Support reading a partially completed shard, i.e.
+    // use build number `-1`.
+    for (BuildUri buildUri in group.createUris(-2)) {
+      print('Reading $buildUri');
+      String text = await readUriAsText(client, buildUri.toUri());
+      for (String line in text.split('\n')) {
+        if (line.startsWith('Done ')) {
+          List<String> parts = split(line, ['Done ', ' ', ' ', ': ']);
+          String testName = parts[3];
+          String configName = parts[1];
+          String archName = parts[2];
+          String status = parts[4];
+          TestStatus testStatus = new TestStatus(
+              new TestConfiguration(configName, archName, testName), status);
+          for (String arg in args) {
+            if (testName.contains(arg) || arg.contains(testName)) {

[karlklose, 2017/03/15 14:06:25]

How about
  if (args.any((String selector) => testName.startsWith(selector))) {
     ...
  }
?

[Johnni Winther, 2017/03/15 14:32:17]

That wouldn't support test names that _don't_ include the test suite (finding
for arithmetic_test in 'Done language/arithmetic_test: pass').

+              resultMap.putIfAbsent(testName, () => {})[buildUri] = testStatus;
+              maxStatusWidth = max(maxStatusWidth, status.length);
+              maxConfigWidth = max(maxConfigWidth, configName.length);
+            }
+          }
+        }
+      }
+    }
+  }
+  print('');
+  resultMap.forEach((String testName, Map<BuildUri, TestStatus> statusMap) {
+    print(testName);
+    statusMap.forEach((BuildUri buildUri, TestStatus status) {
+      print('  ${padRight(status.status, maxStatusWidth)}: '
+          '${padRight(status.config.configName, maxConfigWidth)} '
+          '${buildUri.shortBuildName}');
+    });
+  });
+  client.close();
+}
+
+/// The result of a single test for a single test step.
+class TestStatus {
+  final TestConfiguration config;
+  final String status;
+
+  TestStatus(this.config, this.status);
+
+  String toString() => '$config: $status';
+}