Add metrics for android gradle plugin version (#168181)

Add android gradle plugin version to any events logging gradle builds.  

Fixes: #164148

## Pre-launch Checklist

- [X] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [X] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [X] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [X] I signed the [CLA].
- [X] I listed at least one issue that this PR fixes in the description
above.
- [X] I updated/added relevant documentation (doc comments with `///`).
- [X] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [X] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [X] All existing and new tests are passing.

packages/flutter_tools/lib/src/android/gradle.dart

@@ -33,6 +33,7 @@ import 'android_builder.dart';
 import 'android_studio.dart';
 import 'gradle_errors.dart';
 import 'gradle_utils.dart';
+import 'gradle_utils.dart' as gradle;
 import 'java.dart';
 import 'migrations/android_studio_java_gradle_conflict_migration.dart';
 import 'migrations/cmake_android_16k_pages_migration.dart';
@@ -286,11 +287,25 @@ class AndroidGradleBuilder implements AndroidBuilder {
     _OutputParser? outputParser,
   }) async {
     final bool usesAndroidX = isAppUsingAndroidX(project.android.hostAppGradleRoot);
+    final String? agpVersion = gradle.getAgpVersion(
+      project.android.hostAppGradleRoot,
+      globals.logger,
+    );
     if (usesAndroidX) {
-      _analytics.send(Event.flutterBuildInfo(label: 'app-using-android-x', buildType: 'gradle'));
+      _analytics.send(
+        Event.flutterBuildInfo(
+          label: 'app-using-android-x',
+          buildType: 'gradle',
+          settings: 'androidGradlePluginVersion: $agpVersion',
+        ),
+      );
     } else if (!usesAndroidX) {
       _analytics.send(
-        Event.flutterBuildInfo(label: 'app-not-using-android-x', buildType: 'gradle'),
+        Event.flutterBuildInfo(
+          label: 'app-not-using-android-x',
+          buildType: 'gradle',
+          settings: 'androidGradlePluginVersion: $agpVersion',
+        ),
       );
 
       _logger.printStatus(
@@ -394,7 +409,11 @@ class AndroidGradleBuilder implements AndroidBuilder {
             if (exitCode == 0) {
               final String successEventLabel = 'gradle-${detectedGradleError!.eventLabel}-success';
               _analytics.send(
-                Event.flutterBuildInfo(label: successEventLabel, buildType: 'gradle'),
+                Event.flutterBuildInfo(
+                  label: successEventLabel,
+                  buildType: 'gradle',
+                  settings: 'androidGradlePluginVersion: $agpVersion',
+                ),
               );
               return exitCode;
             }
@@ -403,7 +422,13 @@ class AndroidGradleBuilder implements AndroidBuilder {
         }
       }
       final String usageLabel = 'gradle-${detectedGradleError!.eventLabel}-failure';
-      _analytics.send(Event.flutterBuildInfo(label: usageLabel, buildType: 'gradle'));
+      _analytics.send(
+        Event.flutterBuildInfo(
+          label: usageLabel,
+          buildType: 'gradle',
+          settings: 'androidGradlePluginVersion: $agpVersion',
+        ),
+      );
     }
 
     return exitCode;

packages/flutter_tools/test/commands.shard/permeable/build_apk_test.dart

@@ -7,6 +7,8 @@ import 'package:file/memory.dart';
 import 'package:flutter_tools/src/android/android_builder.dart';
 import 'package:flutter_tools/src/android/android_sdk.dart';
 import 'package:flutter_tools/src/android/android_studio.dart';
+import 'package:flutter_tools/src/android/gradle_utils.dart'
+    show templateAndroidGradlePluginVersion;
 import 'package:flutter_tools/src/android/java.dart';
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/logger.dart';
@@ -707,7 +709,13 @@ void main() {
 
         expect(
           analytics.sentEvents,
-          contains(Event.flutterBuildInfo(label: 'app-not-using-android-x', buildType: 'gradle')),
+          contains(
+            Event.flutterBuildInfo(
+              label: 'app-not-using-android-x',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: $templateAndroidGradlePluginVersion',
+            ),
+          ),
         );
         expect(processManager, hasNoRemainingExpectations);
       },
@@ -763,7 +771,13 @@ void main() {
 
         expect(
           analytics.sentEvents,
-          contains(Event.flutterBuildInfo(label: 'app-using-android-x', buildType: 'gradle')),
+          contains(
+            Event.flutterBuildInfo(
+              label: 'app-using-android-x',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: $templateAndroidGradlePluginVersion',
+            ),
+          ),
         );
         expect(processManager, hasNoRemainingExpectations);
       },

packages/flutter_tools/test/commands.shard/permeable/build_appbundle_test.dart

@@ -6,6 +6,8 @@ import 'package:args/command_runner.dart';
 import 'package:file/memory.dart';
 import 'package:flutter_tools/src/android/android_builder.dart';
 import 'package:flutter_tools/src/android/android_sdk.dart';
+import 'package:flutter_tools/src/android/gradle_utils.dart'
+    show templateAndroidGradlePluginVersion;
 import 'package:flutter_tools/src/base/file_system.dart';
 import 'package:flutter_tools/src/base/io.dart';
 import 'package:flutter_tools/src/base/logger.dart';
@@ -296,7 +298,13 @@ void main() {
 
         expect(
           analytics.sentEvents,
-          contains(Event.flutterBuildInfo(label: 'app-not-using-android-x', buildType: 'gradle')),
+          contains(
+            Event.flutterBuildInfo(
+              label: 'app-not-using-android-x',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: $templateAndroidGradlePluginVersion',
+            ),
+          ),
         );
       },
       overrides: <Type, Generator>{
@@ -336,7 +344,13 @@ void main() {
 
         expect(
           analytics.sentEvents,
-          contains(Event.flutterBuildInfo(label: 'app-using-android-x', buildType: 'gradle')),
+          contains(
+            Event.flutterBuildInfo(
+              label: 'app-using-android-x',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: $templateAndroidGradlePluginVersion',
+            ),
+          ),
         );
       },
       overrides: <Type, Generator>{

packages/flutter_tools/test/general.shard/android/android_gradle_builder_test.dart

@@ -147,8 +147,16 @@ void main() {
         expect(
           fakeAnalytics.sentEvents,
           containsAll(<Event>[
-            Event.flutterBuildInfo(label: 'app-not-using-android-x', buildType: 'gradle'),
-            Event.flutterBuildInfo(label: 'gradle-random-event-label-failure', buildType: 'gradle'),
+            Event.flutterBuildInfo(
+              label: 'app-not-using-android-x',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: null',
+            ),
+            Event.flutterBuildInfo(
+              label: 'gradle-random-event-label-failure',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: null',
+            ),
           ]),
         );
 
@@ -334,7 +342,11 @@ void main() {
         expect(
           fakeAnalytics.sentEvents,
           contains(
-            Event.flutterBuildInfo(label: 'gradle-random-event-label-failure', buildType: 'gradle'),
+            Event.flutterBuildInfo(
+              label: 'gradle-random-event-label-failure',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: null',
+            ),
           ),
         );
       },
@@ -424,7 +436,11 @@ void main() {
         expect(
           fakeAnalytics.sentEvents,
           contains(
-            Event.flutterBuildInfo(label: 'gradle-random-event-label-failure', buildType: 'gradle'),
+            Event.flutterBuildInfo(
+              label: 'gradle-random-event-label-failure',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: null',
+            ),
           ),
         );
       },
@@ -601,7 +617,11 @@ void main() {
         expect(
           fakeAnalytics.sentEvents,
           contains(
-            Event.flutterBuildInfo(label: 'gradle-random-event-label-success', buildType: 'gradle'),
+            Event.flutterBuildInfo(
+              label: 'gradle-random-event-label-success',
+              buildType: 'gradle',
+              settings: 'androidGradlePluginVersion: null',
+            ),
           ),
         );
         expect(processManager, hasNoRemainingExpectations);