Use Gradle KTS in new Android app projects by default (2nd try) by bartekpacia · Pull Request #157195 · flutter/flutter

bartekpacia · 2024-10-18T21:22:41Z

This PR resolves #151166

This PR relands #154061

Pre-launch Checklist

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

This PR resolves #151166

…e KTS

…version_test.dart`

bartekpacia · 2024-10-18T22:48:40Z

probably a good idea to rebase with master after #157196 lands

i.e. this PR depends on #157196 being on master

reidbaker · 2024-10-21T15:37:34Z

  static final RegExp _imperativeKotlinPluginPattern = RegExp('^\\s*apply plugin\\:\\s+[\'"]kotlin-android[\'"]\\s*\$');
-  static final RegExp _declarativeKotlinPluginPattern = RegExp('^\\s*id\\s+[\'"]kotlin-android[\'"]\\s*\$');
+
+  /// Examples of strings that this regex matches:


Thank you, I really appreciate when we give examples next to regex expressions.

gmackall · 2024-10-21T19:00:55Z

Updated branch to include #157196, LGTM if tests pass.

I checked post submits for the last merge, and it was just android_java11_dependency_smoke_tests/android_java17_dependency_smoke_tests and some tool integration tests failing. The tool integration tests are also getting run in presubmit and seem to be passing.

bartekpacia · 2024-10-21T19:02:25Z

thanks @gmackall :)

I'll take a look at the failing tests in a minute.

auto-submit · 2024-10-21T19:02:52Z

auto label is removed for flutter/flutter/157195, due to - The status or check suite Linux android_java17_dependency_smoke_tests has failed. Please fix the issues identified (or deflake) before re-applying this label.

The status or check suite Linux android_java11_dependency_smoke_tests has failed. Please fix the issues identified (or deflake) before re-applying this label.

reidbaker

Failures appear related to this pr.

To keep the default AGP version AGP version 8.1.0, download a compatible Java version
[2024-10-21 12:01:05.009001] [STDOUT] stderr: (Java 17 <= (Java 17 <= compatible Java version < Java 21) Java version < Java 21). Configure this Java version

@gmackall we dont have a java 21 version of these suite of tests yet, it looks like we will need to make one.

gmackall · 2024-10-21T20:16:22Z

Yes, the latest android studio version vends Java 21 I believe, so it would be good to use that in CI

bartekpacia · 2024-10-21T20:32:34Z

@reidbaker @gmackall Should I create a new PR that adds CI for java 21, then get it merged to master, and then come back to this PR?

gmackall · 2024-10-21T20:40:12Z

Sorry for the confusion, my comment was independent of this PR - setting up java 21 tests in CI will probably require CIPD access anyways, which I believe is only available to Googlers, so we will take care of that (and I don't think it should block this PR).

That log indicates a problem that I believe I missed though:
the logs for this failing test
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8733442600577716257/+/u/run_android_java11_dependency_smoke_tests/stdout

══╡ ••• Create new app with dependency versions: (AGP version: 7.0.1, Gradle version: 7.0.2, Kotlin version: 1.7.10, compileSdk version: 34) ••• ╞══
[2024-10-21 12:00:51.161782] [STDOUT] 
[2024-10-21 12:00:51.164051] [STDOUT] Found FLUTTER_LOGS_DIR dump directory /b/s/w/ir/x/w/rc/flutter_logs_dir
[2024-10-21 12:00:51.164346] [STDOUT] Executing "/b/s/w/ir/x/w/rc/tmpoelc13pa/flutter sdk/bin/flutter create dependency_checker_app --platforms=android --ci --debug-logs-dir=/b/s/w/ir/x/w/rc/flutter_logs_dir" in "/b/s/w/ir/x/t/flutter_android_dependency_version_testsAWDEOQ/7.0.2QDQNNN" with environment {BOT: true, LANG: en_US.UTF-8}
[2024-10-21 12:00:51.383044] [STDOUT] stdout: Creating project dependency_checker_app...
[2024-10-21 12:00:51.755288] [STDOUT] stdout: Resolving dependencies in `dependency_checker_app`...
[2024-10-21 12:00:52.373480] [STDOUT] stdout: Downloading packages...
[2024-10-21 12:00:52.389024] [STDOUT] stdout: Got dependencies in `dependency_checker_app`.
[2024-10-21 12:00:52.568869] [STDOUT] stdout: Wrote 35 files.
[2024-10-21 12:00:52.568977] [STDOUT] stdout: 
[2024-10-21 12:00:52.569010] [STDOUT] stdout: All done!
[2024-10-21 12:00:52.570876] [STDOUT] stdout: You can find general documentation for Flutter at: https://docs.flutter.dev//
[2024-10-21 12:00:52.570973] [STDOUT] stdout: Detailed API documentation is available at: https://api.flutter.dev//
[2024-10-21 12:00:52.571001] [STDOUT] stdout: If you prefer video documentation, consider: https://www.youtube.com/c/flutterdev
[2024-10-21 12:00:52.571033] [STDOUT] stdout: 
[2024-10-21 12:00:52.571135] [STDOUT] stdout: In order to run your application, type:
[2024-10-21 12:00:52.571177] [STDOUT] stdout: 
[2024-10-21 12:00:52.571206] [STDOUT] stdout:   $ cd dependency_checker_app
[2024-10-21 12:00:52.571231] [STDOUT] stdout:   $ flutter run
[2024-10-21 12:00:52.571263] [STDOUT] stdout: 
[2024-10-21 12:00:52.571294] [STDOUT] stdout: Your application code is in dependency_checker_app/lib/main.dart.
[2024-10-21 12:00:52.571322] [STDOUT] stdout: 
[2024-10-21 12:00:52.672703] [STDOUT] stderr: The configured version of Java detected may conflict with the Android Gradle Plugin (AGP) version in your new Flutter app.
[2024-10-21 12:00:52.672884] [STDOUT] stderr: 
[2024-10-21 12:00:52.672942] [STDOUT] stderr: To keep the default AGP version AGP version 8.1.0, download a compatible Java version
[2024-10-21 12:00:52.672979] [STDOUT] stderr: (Java 17 <= (Java 17 <= compatible Java version < Java 21) Java version < Java 21). Configure this Java version
[2024-10-21 12:00:52.673015] [STDOUT] stderr: globally for Flutter by running:
[2024-10-21 12:00:52.673046] [STDOUT] stderr: 
[2024-10-21 12:00:52.673184] [STDOUT] stderr:   flutter config --jdk-dir=<JDK_DIRECTORY>
[2024-10-21 12:00:52.673227] [STDOUT] stderr: 
[2024-10-21 12:00:52.673257] [STDOUT] stderr: 
[2024-10-21 12:00:52.673296] [STDOUT] stderr: Alternatively, to continue using your current Java version, update the AGP
[2024-10-21 12:00:52.673324] [STDOUT] stderr: version in the following file(s) to a compatible version (minimum compatible AGP version: 7.0):
[2024-10-21 12:00:52.673364] [STDOUT] stderr:     /b/s/w/ir/x/t/flutter_android_dependency_version_testsAWDEOQ/7.0.2QDQNNN/dependency_checker_app/android/build.gradle
[2024-10-21 12:00:52.673394] [STDOUT] stderr: 
[2024-10-21 12:00:52.673426] [STDOUT] stderr: For details on compatible Java and AGP versions, see
[2024-10-21 12:00:52.673457] [STDOUT] stderr: https://developer.android.com/build/releases/gradle-plugin

indicate that we aren't successfully setting the AGP version to 7.0.1 as the test intends. Let me take another look to see why this is

gmackall · 2024-10-21T20:49:16Z

Ah, I see - that is just the warning from flutter create. Ignore the previous comment, I think that can be safely ignored because we are planning on overwriting the Gradle files anyways.

So in summary, I think you just need to fix the failures in the following log section, namely the part starting

[2024-10-21 12:00:49.029432] [STDOUT] stderr: FAILURE: Build failed with an exception.
[2024-10-21 12:00:49.029461] [STDOUT] stderr: 
[2024-10-21 12:00:49.029507] [STDOUT] stderr: * Where:
[2024-10-21 12:00:49.029544] [STDOUT] stderr: Settings file '/b/s/w/ir/x/t/flutter_android_dependency_version_testsZOXTQI/7.0.2GANUFY/dependency_checker_app/android/settings.gradle.kts' line: 2
[2024-10-21 12:00:49.029585] [STDOUT] stderr: 
[2024-10-21 12:00:49.029623] [STDOUT] stderr: * What went wrong:
[2024-10-21 12:00:49.029652] [STDOUT] stderr: Script compilation errors:
[2024-10-21 12:00:49.029684] [STDOUT] stderr: 
[2024-10-21 12:00:49.029712] [STDOUT] stderr:   Line 02:     def flutterSdkPath = {
[2024-10-21 12:00:49.029742] [STDOUT] stderr:                                   ^ Expecting an element
[2024-10-21 12:00:49.029775] [STDOUT] stderr: 
[2024-10-21 12:00:49.029803] [STDOUT] stderr:   Line 03:         def properties = new Properties()
[2024-10-21 12:00:49.029833] [STDOUT] stderr:                                   ^ Expecting an element
[2024-10-21 12:00:49.029864] [STDOUT] stderr: 
[2024-10-21 12:00:49.029892] [STDOUT] stderr:   Line 05:         def flutterSdkPath = properties.getProperty("flutter.sdk")
[2024-10-21 12:00:49.029920] [STDOUT] stderr:                                       ^ Expecting an element
[2024-10-21 12:00:49.029953] [STDOUT] stderr: 
[2024-10-21 12:00:49.029982] [STDOUT] stderr:   Line 05:         def flutterSdkPath = properties.getProperty("flutter.sdk")
[2024-10-21 12:00:49.037188] [STDOUT] stderr:                                                   ^ Expecting an element
[2024-10-21 12:00:49.037724] [STDOUT] stderr: 
[2024-10-21 12:00:49.039026] [STDOUT] stderr:   Line 06:         assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
[2024-10-21 12:00:49.039920] [STDOUT] stderr:                                          ^ Expecting an element
[2024-10-21 12:00:49.040246] [STDOUT] stderr: 
[2024-10-21 12:00:49.041363] [STDOUT] stderr:   Line 06:         assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
[2024-10-21 12:00:49.041575] [STDOUT] stderr:                                            ^ Unexpected tokens (use ';' to separate expressions on the same line)
[2024-10-21 12:00:49.042884] [STDOUT] stderr: 
[2024-10-21 12:00:49.042944] [STDOUT] stderr:   Line 06:         assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
[2024-10-21 12:00:49.043209] [STDOUT] stderr:                                                 ^ Unexpected tokens (use ';' to separate expressions on the same line)
[2024-10-21 12:00:49.043424] [STDOUT] stderr: 
[2024-10-21 12:00:49.044644] [STDOUT] stderr:   Line 20:     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
[2024-10-21 12:00:49.045201] [STDOUT] stderr:                   ^ Unexpected tokens (use ';' to separate expressions on the same line)
[2024-10-21 12:00:49.045265] [STDOUT] stderr: 
[2024-10-21 12:00:49.046550] [STDOUT] stderr:   Line 21:     id "com.android.application" version "7.0.1" apply false
[2024-10-21 12:00:49.047067] [STDOUT] stderr:                   ^ Unexpected tokens (use ';' to separate expressions on the same line)
[2024-10-21 12:00:49.047336] [STDOUT] stderr: 
[2024-10-21 12:00:49.047971] [STDOUT] stderr:   Line 22:     id "org.jetbrains.kotlin.android" version "1.7.10" apply false
[2024-10-21 12:00:49.049283] [STDOUT] stderr:                   ^ Unexpected tokens (use ';' to separate expressions on the same line)

FYI you should be able to run these tests locally with

../../bin/cache/dart-sdk/bin/dart bin/test_runner.dart test -t android_java11_dependency_smoke_tests

run from

<flutter_root>/dev/devicelab

(and you'll probably want to comment all but one of them out from

flutter/dev/devicelab/bin/tasks/android_java11_dependency_smoke_tests.dart

Line 18 in fba8c57

List<VersionTuple> versionTuples = <VersionTuple>[

, as they can take a bit and you'll probably have fixed all of them once you fix one of them).

bartekpacia · 2024-10-22T17:27:21Z

we are so back

…ter#157195) This PR resolves flutter#151166 This PR relands flutter#154061

…radle.kts usage (#159299) update comments inside `flutter_build_preview_sdk_test.dart` to match the usage of `build.gradle.kts` instead of `build.gradle` those must've slipped from #157195 ## 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]. - [ ] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [ ] 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. If you need help, consider asking for advice on the #hackers-new channel on [Discord].  [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md

…y) (flutter/flutter#157195)

This follows the upstream `flutter create` template's conversion: flutter/flutter#157195 including its dropping of `settings.ext.flutterSdkPath`, a no-op: flutter/flutter#141509 Kotlin has no counterpart to Groovy's dynamic lookup of `"$agpVersion"` in the `plugins` block, and nothing else uses these versions now. So write them there directly, as the template does, and drop them from gradle.properties. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

This now matches the upstream `flutter create` template, which in converting to Kotlin also moved off the deprecated `buildDir`: flutter/flutter#157195 flutter/flutter#157560 Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

This follows the upstream `flutter create` template's conversion: flutter/flutter#157195 Where the Groovy called the deprecated `compileSdkVersion`, `minSdkVersion`, and `targetSdkVersion` methods, set the `compileSdk`, `minSdk`, and `targetSdk` properties instead, as the template does. This also resolves Gradle's deprecation warnings on this file's space-assignment syntax, like `namespace "com.zulip.flutter"`. In Kotlin, lint's GradleDependency check can read our dependency declarations, and it fails the build because `androidx.test:orchestrator` has a newer release. Disable it, as 15f3f59 did AndroidGradlePluginVersion: we manage these upgrades deliberately, and an upgrade nag shouldn't fail CI. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

Use Gradle KTS in new Android app projects by default (#154061)

9285c3f

This PR resolves #151166

github-actions Bot added the tool Affects the "flutter" command-line tool. See also t: labels. label Oct 18, 2024

bartekpacia added 3 commits October 18, 2024 23:53

fix buildFlutterApkWithSpecifiedDependencyVersions to work with Gradl…

bee52f1

…e KTS

fix `flutter_tools/test/integration.shard/isolated/native_assets_agp_…

c68d2c3

…version_test.dart`

organize imports

8d1d420

bartekpacia requested review from gmackall and reidbaker and removed request for gmackall October 18, 2024 22:47

bartekpacia marked this pull request as ready for review October 18, 2024 22:47

Merge branch 'master' into bartekpacia/gradle_kotlin_by_default_2

e5fff78

reidbaker approved these changes Oct 21, 2024

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Merge branch 'master' into bartekpacia/gradle_kotlin_by_default_2

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gmackall approved these changes Oct 21, 2024

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gmackall added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 21, 2024

auto-submit Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Oct 21, 2024

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fix java smoke tests

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bartekpacia added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 22, 2024

auto-submit Bot merged commit eb5ef69 into flutter:master Oct 22, 2024

bartekpacia deleted the bartekpacia/gradle_kotlin_by_default_2 branch October 22, 2024 19:48

M97Chahboun pushed a commit to M97Chahboun/flutter that referenced this pull request Oct 30, 2024

Use Gradle KTS in new Android app projects by default (2nd try) (flut…

3a775e2

…ter#157195) This PR resolves flutter#151166 This PR relands flutter#154061

AbdeMohlbi mentioned this pull request Nov 21, 2024

Align comments in flutter_build_preview_sdk_test.dart with build.gradle.kts usage #159299

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7 of 9 tasks

StephenWithPH mentioned this pull request Jan 16, 2025

use Gradle's Kotlin DSL in plugin templates #161703

Closed

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 12, 2025

eb5ef69 Use Gradle KTS in new Android app projects by default (2nd tr…

9a9dd86

…y) (flutter/flutter#157195)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 13, 2025

eb5ef69 Use Gradle KTS in new Android app projects by default (2nd tr…

1400266

…y) (flutter/flutter#157195)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 13, 2025

eb5ef69 Use Gradle KTS in new Android app projects by default (2nd tr…

7f44f4b

…y) (flutter/flutter#157195)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 6, 2025

eb5ef69 Use Gradle KTS in new Android app projects by default (2nd tr…

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…y) (flutter/flutter#157195)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 7, 2025

eb5ef69 Use Gradle KTS in new Android app projects by default (2nd tr…

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…y) (flutter/flutter#157195)

FrankenApps mentioned this pull request Jun 4, 2025

Migrate Android example to Kotlin DSL Tienisto/rhttp#78

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rajveermalviya mentioned this pull request Sep 25, 2026

Convert Gradle scripts to Kotlin, from Groovy zulip/zulip-flutter#2470

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Use Gradle KTS in new Android app projects by default (2nd try) - #157195

Use Gradle KTS in new Android app projects by default (2nd try)#157195
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