[tool] fix android studio preview's version parsing (#156293)

This PR willing to fix issue when `flutter doctor` validator can't determine version of Android Studio EAP.

These are before/after outputs of `flutter doctor -v` showcasing change in behaviour of validator. Each output has 3 `Android Studio` sections, 1 for stable and 2 for different EAP versions.

<details>
<summary>before, (stable, 3.24.3), 2 issues related to versions of Android Studio</summary>

```console
[✓] Flutter (Channel stable, 3.24.3, on macOS 14.7 23H124 darwin-arm64, locale en-RU)
    • Flutter version 3.24.3 on channel stable at /Users/samer/fvm/versions/stable
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 2663184aa7 (4 weeks ago), 2024-09-11 16:27:48 -0500
    • Engine revision 36335019a8
    • Dart version 3.5.3
    • DevTools version 2.37.3

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/samer/Library/Android/sdk
    • Platform android-35, build-tools 34.0.0
    • Java binary at: /Users/samer/Library/Java/JavaVirtualMachines/jbr-17.0.7/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment JBR-17.0.7+7-964.1-nomod (build 17.0.7+7-b964.1)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
    • Xcode at /Applications/Xcode-16.0.app/Contents/Developer
    • Build 16A242d
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2024.1)
    • Android Studio at /Users/samer/Applications/Android Studio Koala Feature Drop 2024.1.2.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)

[!] Android Studio (version unknown)
    • Android Studio at /Users/samer/Applications/Android Studio Ladybug Feature Drop 2024.2.2 Canary 2.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    ✗ Unable to determine Android Studio version.
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[!] Android Studio (version unknown)
    • Android Studio at /Users/samer/Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    ✗ Unable to determine Android Studio version.
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[✓] IntelliJ IDEA Ultimate Edition (version EAP IU-243.12818.47)
    • IntelliJ at /Users/samer/Applications/IntelliJ IDEA Ultimate.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.94.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.98.0

[✓] Connected device (5 available)
    • sdk gphone64 arm64 (mobile)     • emulator-5554             • android-arm64  • Android 15 (API 35) (emulator)
    • iPhone (Михаил) (mobile)        • 00008020-001254DA1E39002E • ios            • iOS 17.6.1 21G93
    • macOS (desktop)                 • macos                     • darwin-arm64   • macOS 14.7 23H124 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad     • darwin         • macOS 14.7 23H124 darwin-arm64
    • Chrome (web)                    • chrome                    • web-javascript • Google Chrome 129.0.6668.90
    ! Error: Browsing on the local area network for Михаил Новосельцев’s iPad. Ensure the device is unlocked and attached with a cable or associated with the same local area network as this Mac.
      The device must be opted into Developer Mode to connect wirelessly. (code -27)

[✓] Network resources
    • All expected network resources are available.

! Doctor found issues in 2 categories.
```
</details>

<details>
<summary>after,  no issues regarding Android Studio</summary>

```console
[!] Flutter (Channel [user-branch], 3.26.0-1.0.pre.383, on macOS 14.7 23H124 darwin-arm64, locale en-RU)
    ! Flutter version 3.26.0-1.0.pre.383 on channel [user-branch] at /Users/samer/projects/flutter
      Currently on an unknown channel. Run `flutter channel` to switch to an official channel.
      If that doesn't fix the issue, reinstall Flutter by following instructions at https://flutter.dev/setup.
    • Upstream repository git@github.com:Sameri11/flutter.git
    • FLUTTER_GIT_URL = git@github.com:Sameri11/flutter.git
    • Framework revision 852508425d (20 minutes ago), 2024-10-07 21:22:45 +0500
    • Engine revision 683a14c1f1
    • Dart version 3.6.0 (build 3.6.0-326.0.dev)
    • DevTools version 2.40.0
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update
      checks and upgrades.

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/samer/Library/Android/sdk
    • Platform android-35, build-tools 34.0.0
    • Java binary at: /Users/samer/Library/Java/JavaVirtualMachines/jbr-17.0.7/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment JBR-17.0.7+7-964.1-nomod (build 17.0.7+7-b964.1)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 16.0)
    • Xcode at /Applications/Xcode-16.0.app/Contents/Developer
    • Build 16A242d
    • CocoaPods version 1.15.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2024.1)
    • Android Studio at /Users/samer/Applications/Android Studio Koala Feature Drop 2024.1.2.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)

[✓] Android Studio (version 2024.2.2)
    • Android Studio at /Users/samer/Applications/Android Studio Ladybug Feature Drop 2024.2.2 Canary 2.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[✓] Android Studio (version 2024.2.1)
    • Android Studio at /Users/samer/Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.3+-79915917-b509.11)

[✓] IntelliJ IDEA Ultimate Edition (version EAP IU-243.12818.47)
    • IntelliJ at /Users/samer/Applications/IntelliJ IDEA Ultimate.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.94.0)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.98.0

[✓] Connected device (5 available)
    • sdk gphone64 arm64 (mobile)     • emulator-5554             • android-arm64  • Android 15 (API 35) (emulator)
    • iPhone (Михаил) (mobile)        • 00008020-001254DA1E39002E • ios            • iOS 17.6.1 21G93
    • macOS (desktop)                 • macos                     • darwin-arm64   • macOS 14.7 23H124 darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad     • darwin         • macOS 14.7 23H124 darwin-arm64
    • Chrome (web)                    • chrome                    • web-javascript • Google Chrome 129.0.6668.90
    ! Error: Browsing on the local area network for Михаил Новосельцев’s iPad. Ensure the device is unlocked and attached with a cable or
      associated with the same local area network as this Mac.
      The device must be opted into Developer Mode to connect wirelessly. (code -27)

[✓] Network resources
    • All expected network resources are available.

! Doctor found issues in 1 category.
```
</details>

Logic behind these changes explained in https://github.com/flutter/flutter/issues/121925#issuecomment-2352826925

fixes #121925

**Tests**: updated existing tests by adding version checking, but I don't mind writing new ones if necessary – please tell me if so.
https://dart.googlesource.com/external/github.com/flutter/flutter/+/ae6d79336e4b5428b34b1b3c21d6886c17a04887
2 files changed
tree: 562f450498e619e0c736689094ddd28ae38d6e6e
  1. ci/
  2. tools/
  3. .gitignore
  4. commits.json
  5. DEPS
  6. OWNERS
  7. README.md
README.md

Monorepo

A gclient solution for checking out Dart and Flutter source trees

Monorepo is:

  • Optimized for Tip-of-Tree testing: The Monorepo DEPS used to check out Dart and Flutter dependencies comes from the Flutter engine DEPS with updated dependencies from Dart.

Checking out Monorepo

With depot_tools installed and on your path, create a directory for your monorepo checkout and run these commands to create a gclient solution in that directory:

mkdir monorepo
cd monorepo
gclient config --unmanaged https://dart.googlesource.com/monorepo
gclient sync -D

This gives you a checkout in the monorepo directory that contains:

monorepo/
  DEPS - the DEPS used for this gclient checkout
  commits.json - the pinned commits for Dart, flutter/engine,
                 and flutter/flutter
  tools/ - scripts used to create monorepo DEPS
engine/src/ - the flutter/buildroot repo
    flutter/ - the flutter/engine repo
    out/ - the build directory, where Flutter engine builds are created
    third_party/ - Flutter dependencies checked out by DEPS
      dart/ - the Dart SDK checkout.
        third_party - Dart dependencies, also used by Flutter
flutter/ - the flutter/flutter repo

Building Flutter engine

Flutter's instructions for building the engine are at Compiling the engine

They can be followed closely, with a few changes:

  • Googlers working on Dart do not need to switch to Fuchsia's Goma RBE, except for Windows. The GOMA_DIR enviroment variable can just point to the .cipd_bin directory in a depot_tools installation, and just goma_ctl ensure_start is sufficient.
  • The --no-prebuilt-dart-sdk option has to be added to every gn command, so that the build is set up to build and use a local Dart SDK.
  • The --full-dart-sdk option must be added to gn for the host build target if you will be building web or desktop apps.

Example build commands that work on linux:

MONOREPO_PATH=$PWD
if [[ ! $PATH =~ (^|:)$MONOREPO_PATH/flutter/bin(:|$) ]]; then
  PATH=$MONOREPO_PATH/flutter/bin:$PATH
fi

export GOMA_DIR=$(dirname $(command -v gclient))/.cipd_bin
goma_ctl ensure_start

pushd engine/src
flutter/tools/gn --goma --no-prebuilt-dart-sdk --unoptimized --full-dart-sdk
autoninja -C out/host_debug_unopt
popd

Building Flutter apps

The Flutter commands used to build and run apps will use the locally built Flutter engine and Dart SDK, instead of the one downloaded by the Flutter tool, if the --local-engine option is provided.

For example, to build and run the Flutter spinning square sample on the web platform,

MONOREPO_PATH=$PWD
cd flutter/examples/layers
flutter --local-engine=host_debug_unopt \
  -d chrome run widgets/spinning_square.dart
cd $MONOREPO_PATH

To build for desktop, specify the desktop platform device in flutter run as -d macos or -d linux or -d windows. You may also need to run the command

flutter create --platforms=windows,macos,linux

on existing apps, such as sample apps. New apps created with flutter create already include these support files. Details of desktop support are at Desktop Support for Flutter

Testing

Tests in the Flutter source tree can be run with the flutter test command, run in the directory of a package containing tests. For example:

MONOREPO_PATH=$PWD
cd flutter/packages/flutter
flutter test --local-engine=host_debug_unopt
cd $MONOREPO_PATH

Troubleshooting

Please file an issue or email the dart-engprod team with any problems with or questions about using monorepo.

We will update this documentation to address them.

  • flutter commands may download the engine and Dart SDK files for the configured channel, even though they will be using the local engine and its SDK.

Windows

  • On Windows, gclient sync needs to be run in an administrator session, because some installed dependencies create symlinks.