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[tool] Migrate DoctorCommand to modular dependency injection - #190758
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This pull request refactors dependency injection in flutter_tools by introducing structured context classes (ToolContext, AndroidContext, AppleContext, and ToolDependencies) to bootstrap and manage tool dependencies, replacing global references across various commands and updating associated tests to run without zone-based context overrides. The review feedback identifies a critical issue where DoctorCommand is instantiated without its required dependencies, which would cause it to fail. It also suggests making doctor and androidLicenseValidator required in DoctorCommand for compile-time safety, and using the local finalShutdownHooks variable instead of creating unmanaged ShutdownHooks when bootstrapping the file system.
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# Conflicts: # packages/flutter_tools/lib/src/context/tool_dependencies.dart # packages/flutter_tools/test/general.shard/context/dependency_injection_test.dart
… globals fallback
…ctly in FlutterCommandRunner
…ool_dependencies.dart
…n channel_test.dart
… doctor_test.dart
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Code Review
This pull request refactors DoctorCommand to inject its dependencies, such as ToolContext, Doctor, and AndroidLicenseValidator, instead of accessing them via globals, and adds corresponding unit tests. The review feedback suggests making the injected Doctor dependency required and non-nullable, which would simplify the command's implementation by removing redundant null-safety checks.
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…cutable.dart Retain the shared singleton from `globals.doctor` in `DoctorCommand` until dependent commands (such as `DevicesCommand` and `EmulatorsCommand`) are migrated to dependency injection, avoiding instance divergence.
… validator lazily
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flutter/flutter@0cbd1a4...70797e1 2026-09-02 bkonyi@google.com [analysis] Upgrade package:analyzer to 14.3.0 and enable custom plugin compilation (flutter/flutter#191590) 2026-09-02 engine-flutter-autoroll@skia.org Roll Dart SDK from d8d7869d8031 to 9a8fbde80f6c (1 revision) (flutter/flutter#192179) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from dec311244db4 to ae22da2e8308 (1 revision) (flutter/flutter#192177) 2026-09-02 bkonyi@google.com [tool] Migrate DoctorCommand to modular dependency injection (flutter/flutter#190758) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 482b7e285244 to dec311244db4 (3 revisions) (flutter/flutter#192161) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 28447e9fb8d5 to 482b7e285244 (3 revisions) (flutter/flutter#192157) 2026-09-02 34465683+rkishan516@users.noreply.github.com feat: Add placeholder to DecorationImage (flutter/flutter#191528) 2026-09-02 papmodern14@gmail.com [Android] Do not schedule engine frames on a detached FlutterJNI (flutter/flutter#191204) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 3a242fb7cdb3 to 28447e9fb8d5 (1 revision) (flutter/flutter#192145) 2026-09-02 engine-flutter-autoroll@skia.org Roll Dart SDK from 9164def35347 to d8d7869d8031 (2 revisions) (flutter/flutter#192144) 2026-09-02 74458687+anazr9@users.noreply.github.com Add FadeInImageTransition.fadeInOver to fade the image in over the placeholder (flutter/flutter#186246) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 63d13ec4df6d to 3a242fb7cdb3 (9 revisions) (flutter/flutter#192138) 2026-09-02 bkonyi@google.com [flutter_tools] Add --no-plugins flag and disable plugins for benchmark (flutter/flutter#192129) 2026-09-02 bkonyi@google.com [tool] Migrate ChannelCommand to modular dependency injection (flutter/flutter#190751) 2026-09-01 46920873+gabrimatic@users.noreply.github.com Add mouseCursor to RawScrollbar (flutter/flutter#185750) 2026-09-01 ksanaullah383.khan@gmail.com Fix self-comparison and assert typos in TestSemantics (flutter/flutter#191938) 2026-09-01 robert.ancell@canonical.com [Linux] Wait for frames to be rendered before using them in another context (flutter/flutter#192094) 2026-09-01 jacksongardner@google.com [wimp] Turn on multithreading for wimp. (flutter/flutter#191747) 2026-09-01 engine-flutter-autoroll@skia.org Roll Skia from 3911a1fe7f7a to 63d13ec4df6d (6 revisions) (flutter/flutter#192125) 2026-09-01 jason-simmons@users.noreply.github.com Remove the redundant flutter/shell/platform/android:robolectric_tests build target (flutter/flutter#192117) 2026-09-01 AfzalivE@users.noreply.github.com [iOS] Preserve semantics parents after reparenting (flutter/flutter#189686) 2026-09-01 bkonyi@google.com [flutter_tools] Report preview reload timing analytics in LspPreviewDetector (flutter/flutter#192120) 2026-09-01 bkonyi@google.com [flutter_tools] Implement Templates slice and flutter create integration (flutter/flutter#191748) 2026-09-01 louisehsu@google.com Uiscene migrate add2app hosts (flutter/flutter#191847) 2026-09-01 engine-flutter-autoroll@skia.org Roll Packages from d642322 to 7a7912f (8 revisions) (flutter/flutter#192119) 2026-09-01 zhongliu88889@gmail.com [web] Anchor flt-semantics-host at 0,0 to fix WebKit semantics offset (flutter/flutter#190486) 2026-09-01 jason-simmons@users.noreply.github.com Replace Shell::WaitForFirstFrame with an asynchronous API that matches the Shell threading model (flutter/flutter#191841) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC stuartmorgan@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
…r#12727) flutter/flutter@0cbd1a4...70797e1 2026-09-02 bkonyi@google.com [analysis] Upgrade package:analyzer to 14.3.0 and enable custom plugin compilation (flutter/flutter#191590) 2026-09-02 engine-flutter-autoroll@skia.org Roll Dart SDK from d8d7869d8031 to 9a8fbde80f6c (1 revision) (flutter/flutter#192179) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from dec311244db4 to ae22da2e8308 (1 revision) (flutter/flutter#192177) 2026-09-02 bkonyi@google.com [tool] Migrate DoctorCommand to modular dependency injection (flutter/flutter#190758) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 482b7e285244 to dec311244db4 (3 revisions) (flutter/flutter#192161) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 28447e9fb8d5 to 482b7e285244 (3 revisions) (flutter/flutter#192157) 2026-09-02 34465683+rkishan516@users.noreply.github.com feat: Add placeholder to DecorationImage (flutter/flutter#191528) 2026-09-02 papmodern14@gmail.com [Android] Do not schedule engine frames on a detached FlutterJNI (flutter/flutter#191204) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 3a242fb7cdb3 to 28447e9fb8d5 (1 revision) (flutter/flutter#192145) 2026-09-02 engine-flutter-autoroll@skia.org Roll Dart SDK from 9164def35347 to d8d7869d8031 (2 revisions) (flutter/flutter#192144) 2026-09-02 74458687+anazr9@users.noreply.github.com Add FadeInImageTransition.fadeInOver to fade the image in over the placeholder (flutter/flutter#186246) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 63d13ec4df6d to 3a242fb7cdb3 (9 revisions) (flutter/flutter#192138) 2026-09-02 bkonyi@google.com [flutter_tools] Add --no-plugins flag and disable plugins for benchmark (flutter/flutter#192129) 2026-09-02 bkonyi@google.com [tool] Migrate ChannelCommand to modular dependency injection (flutter/flutter#190751) 2026-09-01 46920873+gabrimatic@users.noreply.github.com Add mouseCursor to RawScrollbar (flutter/flutter#185750) 2026-09-01 ksanaullah383.khan@gmail.com Fix self-comparison and assert typos in TestSemantics (flutter/flutter#191938) 2026-09-01 robert.ancell@canonical.com [Linux] Wait for frames to be rendered before using them in another context (flutter/flutter#192094) 2026-09-01 jacksongardner@google.com [wimp] Turn on multithreading for wimp. (flutter/flutter#191747) 2026-09-01 engine-flutter-autoroll@skia.org Roll Skia from 3911a1fe7f7a to 63d13ec4df6d (6 revisions) (flutter/flutter#192125) 2026-09-01 jason-simmons@users.noreply.github.com Remove the redundant flutter/shell/platform/android:robolectric_tests build target (flutter/flutter#192117) 2026-09-01 AfzalivE@users.noreply.github.com [iOS] Preserve semantics parents after reparenting (flutter/flutter#189686) 2026-09-01 bkonyi@google.com [flutter_tools] Report preview reload timing analytics in LspPreviewDetector (flutter/flutter#192120) 2026-09-01 bkonyi@google.com [flutter_tools] Implement Templates slice and flutter create integration (flutter/flutter#191748) 2026-09-01 louisehsu@google.com Uiscene migrate add2app hosts (flutter/flutter#191847) 2026-09-01 engine-flutter-autoroll@skia.org Roll Packages from d642322 to 7a7912f (8 revisions) (flutter/flutter#192119) 2026-09-01 zhongliu88889@gmail.com [web] Anchor flt-semantics-host at 0,0 to fix WebKit semantics offset (flutter/flutter#190486) 2026-09-01 jason-simmons@users.noreply.github.com Replace Shell::WaitForFirstFrame with an asynchronous API that matches the Shell threading model (flutter/flutter#191841) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC stuartmorgan@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
…r#12727) flutter/flutter@0cbd1a4...70797e1 2026-09-02 bkonyi@google.com [analysis] Upgrade package:analyzer to 14.3.0 and enable custom plugin compilation (flutter/flutter#191590) 2026-09-02 engine-flutter-autoroll@skia.org Roll Dart SDK from d8d7869d8031 to 9a8fbde80f6c (1 revision) (flutter/flutter#192179) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from dec311244db4 to ae22da2e8308 (1 revision) (flutter/flutter#192177) 2026-09-02 bkonyi@google.com [tool] Migrate DoctorCommand to modular dependency injection (flutter/flutter#190758) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 482b7e285244 to dec311244db4 (3 revisions) (flutter/flutter#192161) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 28447e9fb8d5 to 482b7e285244 (3 revisions) (flutter/flutter#192157) 2026-09-02 34465683+rkishan516@users.noreply.github.com feat: Add placeholder to DecorationImage (flutter/flutter#191528) 2026-09-02 papmodern14@gmail.com [Android] Do not schedule engine frames on a detached FlutterJNI (flutter/flutter#191204) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 3a242fb7cdb3 to 28447e9fb8d5 (1 revision) (flutter/flutter#192145) 2026-09-02 engine-flutter-autoroll@skia.org Roll Dart SDK from 9164def35347 to d8d7869d8031 (2 revisions) (flutter/flutter#192144) 2026-09-02 74458687+anazr9@users.noreply.github.com Add FadeInImageTransition.fadeInOver to fade the image in over the placeholder (flutter/flutter#186246) 2026-09-02 engine-flutter-autoroll@skia.org Roll Skia from 63d13ec4df6d to 3a242fb7cdb3 (9 revisions) (flutter/flutter#192138) 2026-09-02 bkonyi@google.com [flutter_tools] Add --no-plugins flag and disable plugins for benchmark (flutter/flutter#192129) 2026-09-02 bkonyi@google.com [tool] Migrate ChannelCommand to modular dependency injection (flutter/flutter#190751) 2026-09-01 46920873+gabrimatic@users.noreply.github.com Add mouseCursor to RawScrollbar (flutter/flutter#185750) 2026-09-01 ksanaullah383.khan@gmail.com Fix self-comparison and assert typos in TestSemantics (flutter/flutter#191938) 2026-09-01 robert.ancell@canonical.com [Linux] Wait for frames to be rendered before using them in another context (flutter/flutter#192094) 2026-09-01 jacksongardner@google.com [wimp] Turn on multithreading for wimp. (flutter/flutter#191747) 2026-09-01 engine-flutter-autoroll@skia.org Roll Skia from 3911a1fe7f7a to 63d13ec4df6d (6 revisions) (flutter/flutter#192125) 2026-09-01 jason-simmons@users.noreply.github.com Remove the redundant flutter/shell/platform/android:robolectric_tests build target (flutter/flutter#192117) 2026-09-01 AfzalivE@users.noreply.github.com [iOS] Preserve semantics parents after reparenting (flutter/flutter#189686) 2026-09-01 bkonyi@google.com [flutter_tools] Report preview reload timing analytics in LspPreviewDetector (flutter/flutter#192120) 2026-09-01 bkonyi@google.com [flutter_tools] Implement Templates slice and flutter create integration (flutter/flutter#191748) 2026-09-01 louisehsu@google.com Uiscene migrate add2app hosts (flutter/flutter#191847) 2026-09-01 engine-flutter-autoroll@skia.org Roll Packages from d642322 to 7a7912f (8 revisions) (flutter/flutter#192119) 2026-09-01 zhongliu88889@gmail.com [web] Anchor flt-semantics-host at 0,0 to fix WebKit semantics offset (flutter/flutter#190486) 2026-09-01 jason-simmons@users.noreply.github.com Replace Shell::WaitForFirstFrame with an asynchronous API that matches the Shell threading model (flutter/flutter#191841) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages Please CC stuartmorgan@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
Summary
Part 7 of the modular dependency injection migration.
Migrates
DoctorCommandto explicit constructor dependency injection viaToolContext,Doctor, andAndroidLicenseValidator, removing ambient access fromFlutterCommandand adding hermetic unit tests.Stacked on #190751
Compare: bkonyi/flutter@di/05-channel...di/06-doctor
Part of #47161