[flutter_tools] Gracefully handle locked Windows files during clean by bkonyi · Pull Request #190095 · flutter/flutter · GitHub
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[flutter_tools] Gracefully handle locked Windows files during clean - #190095

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bkonyi:foo_bar_test
Aug 4, 2026
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[flutter_tools] Gracefully handle locked Windows files during clean#190095
auto-submit[bot] merged 7 commits into
flutter:masterfrom
bkonyi:foo_bar_test

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@bkonyi

@bkonyi bkonyi commented Jul 27, 2026

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Description

This PR adds a --stop-gradle flag to flutter clean and an interactive terminal prompt on Windows to offer stopping active Gradle daemons (gradlew --stop) when files in build/ are locked by background Java/Gradle processes on Windows.

Fixes #184637

Tests

  • Added unit test in clean_test.dart verifying --stop-gradle execution, status log output, and retried file deletion.

bkonyi added 2 commits July 27, 2026 20:17
Add --stop-gradle flag to flutter clean and prompt to run gradlew --stop when files in build/ are locked by background processes on Windows.

Fixes flutter#184637
…command

Extract Gradle process termination and delete retry logic into a private helper method.
@flutter-dashboard flutter-dashboard Bot added the CICD Run CI/CD label Jul 27, 2026
@github-actions github-actions Bot added the tool Affects the "flutter" command-line tool. See also t: labels. label Jul 27, 2026

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Code Review

This pull request introduces a --stop-gradle flag to the clean command, allowing users to force stop active Gradle daemons on Windows when build files are locked, and updates file deletion to be asynchronous. Feedback on these changes suggests awaiting all deleteFile calls (such as in _cleanXcode), restoring ErrorHandlingFileSystem.noExitOnFailure asynchronously to prevent regressions, adding /// documentation for the new private helper method, wrapping the Gradle stop process execution in a try-catch block to avoid masking file system exceptions, and adding a unit test for the interactive prompt behavior.

Comment thread packages/flutter_tools/lib/src/commands/clean.dart
Comment thread packages/flutter_tools/lib/src/commands/clean.dart Outdated
Comment thread packages/flutter_tools/lib/src/commands/clean.dart
Comment thread packages/flutter_tools/lib/src/commands/clean.dart
Comment thread packages/flutter_tools/test/commands.shard/hermetic/clean_test.dart
bkonyi added 3 commits July 27, 2026 20:50
…eractive prompt test

Address PR review feedback:
- Add doc comment for _tryStopGradleAndRetryDelete
- Catch process execution exceptions during gradlew --stop
- Add unit test for interactive prompt behavior
…ExitOnFailure and restore it in clean command
@bkonyi
bkonyi requested a review from chingjun August 4, 2026 17:53
@bkonyi bkonyi added the autosubmit Merge PR when tree becomes green via auto submit App label Aug 4, 2026
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auto-submit Bot added this pull request to the merge queue Aug 4, 2026
Merged via the queue into flutter:master with commit 08d3f0b Aug 4, 2026
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@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Aug 4, 2026
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request Aug 10, 2026
…12420)

Manual roll requested by stuartmorgan@google.com

flutter/flutter@b766512...27b0988

2026-08-05 kevmoo@users.noreply.github.com reland(tool): remove redundant --enable-experiment=record-use flag (flutter/flutter#190591)
2026-08-05 chris@bracken.jp Windows: Propagate enabled accessibility state (flutter/flutter#190507)
2026-08-05 engine-flutter-autoroll@skia.org Roll Fuchsia Test Scripts from ltbuIH9Z3T_yOuigu... to vcANVO8VIDQHasH1X... (flutter/flutter#190589)
2026-08-05 256906086+mvincentong@users.noreply.github.com Document frozen embedder API structs (flutter/flutter#186842)
2026-08-05 49402500+fahaddoc@users.noreply.github.com Document super call order for State.didChangeDependencies (flutter/flutter#185945)
2026-08-05 dkwingsmt@users.noreply.github.com Move examples of `flutter/widgets` widgets out from `flutter/material` (flutter/flutter#189532)
2026-08-05 93888664+ColeSpringer@users.noreply.github.com [web] Use thread local strike caches in skwasm (flutter/flutter#190048)
2026-08-05 43089218+chika3742@users.noreply.github.com doc: fix typo in see also section for PrimaryScrollController.maybeOf (flutter/flutter#190386)
2026-08-05 jason-simmons@users.noreply.github.com Migrate the shell unit tests from legacy Dart native functions to FFI (flutter/flutter#190473)
2026-08-05 47866232+chunhtai@users.noreply.github.com render proxy box now defaults baseline calculation to null (flutter/flutter#190269)
2026-08-05 36861262+QuncCccccc@users.noreply.github.com Update Widgets Localizations from Translation Console (flutter/flutter#190503)
2026-08-04 154381524+flutteractionsbot@users.noreply.github.com Revert: fix(tool): remove redundant --enable-experiment=record-use flag (flutter/flutter#190583)
2026-08-04 engine-flutter-autoroll@skia.org Roll Fuchsia Test Scripts from 1frGe_KltAJKkeyPg... to ltbuIH9Z3T_yOuigu... (flutter/flutter#190561)
2026-08-04 chris@bracken.jp iOS,macOS: add tsan and ubsan support for Swift (flutter/flutter#190497)
2026-08-04 34465683+rkishan516@users.noreply.github.com fix: update on_message_ to nullptr after window destroy so that dart gets destroy message  (flutter/flutter#185807)
2026-08-04 bkonyi@google.com [flutter_tools] Gracefully handle locked Windows files during clean (flutter/flutter#190095)
2026-08-04 chris@bracken.jp iOS,macOS: make Logger thread-safe, conform to Sendable (flutter/flutter#190488)
2026-08-04 chris@bracken.jp iOS: Eliminate use of IOSContextNoop in platform view tests (reland) (flutter/flutter#190509)
2026-08-04 kevmoo@users.noreply.github.com fix(tool): remove redundant --enable-experiment=record-use flag (flutter/flutter#190475)
2026-08-04 awolff@google.com android_hardware_smoke_test: Detect blank image failures or EGL initialization warnings and retry (flutter/flutter#190110)
2026-08-04 30870216+gaaclarke@users.noreply.github.com Bumps text gamma on windows to match skia. (flutter/flutter#190477)
2026-08-04 engine-flutter-autoroll@skia.org Roll Skia from 48b58ee222f1 to a8583a0a2c11 (2 revisions) (flutter/flutter#190537)
2026-08-04 kevmoo@users.noreply.github.com [tool][web] Intercept dart2wasm errors & append JS migration footers (flutter/flutter#190476)
2026-08-04 dacoharkes@google.com [record_use] Migrate IconTreeShaker to `package:record_use` (flutter/flutter#190225)
2026-08-04 s4bre.py@gmail.com Handle unexpected exceptions during Azure metadata detection (flutter/flutter#189457)
2026-08-04 15619084+vashworth@users.noreply.github.com Fix merge conflict from flutter/flutter#190369 (flutter/flutter#190544)
2026-08-04 15619084+vashworth@users.noreply.github.com Prepare device support symbols (flutter/flutter#190369)
2026-08-04 engine-flutter-autoroll@skia.org Roll Packages from ac87e65 to 3498b9d (1 revision) (flutter/flutter#190532)
2026-08-04 engine-flutter-autoroll@skia.org Roll Skia from a08d918ebd6a to 48b58ee222f1 (11 revisions) (flutter/flutter#190527)

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,tarrinneal@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
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Ask the user to force stop java if its conflicting in deleting builds

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