[ Tool ] Cleanup widget preview and frontend server shutdown #173863
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Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.
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This pull request cleans up the widget preview and frontend server shutdown process to prevent spurious error messages. The changes involve adding a shutdown flag to ShutdownHooks, using this flag in the ResidentCompiler to avoid throwing an error during shutdown, and refactoring shutdown logic in the widget preview command. The changes look good and address the described issue. I've added one comment about a missing docstring to adhere to the project's style guide.
matanlurey
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Aug 21, 2025
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Seems like code to me.
Just kidding - this looks good, thanks for the fix!
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SydneyBao
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Aug 22, 2025
…#173863) Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.
SydneyBao
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Aug 22, 2025
…#173863) Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.
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flutter/flutter@d2ac021...26bb33b 2025-08-22 34871572+gmackall@users.noreply.github.com [HCPP] Clean up overlay layer when last frame had overlay content and current doesn't (flutter/flutter#173881) 2025-08-22 32538273+ValentinVignal@users.noreply.github.com Migrate more files to use WidgetStateProperty (flutter/flutter#174176) 2025-08-22 engine-flutter-autoroll@skia.org Roll Skia from 75fef9fb3ed7 to cb15e1452399 (1 revision) (flutter/flutter#174255) 2025-08-22 engine-flutter-autoroll@skia.org Roll Skia from 006241a7fbe1 to 75fef9fb3ed7 (1 revision) (flutter/flutter#174254) 2025-08-22 biggs0125@gmail.com Skip wasm build when dry run is disabled and --wasm is not specified. (flutter/flutter#174184) 2025-08-22 engine-flutter-autoroll@skia.org Roll Dart SDK from c153c5259e62 to 4f9623f024ab (2 revisions) (flutter/flutter#174250) 2025-08-22 engine-flutter-autoroll@skia.org Roll Skia from d70087007490 to 006241a7fbe1 (2 revisions) (flutter/flutter#174252) 2025-08-22 engine-flutter-autoroll@skia.org Roll Skia from c09589f7ca69 to d70087007490 (22 revisions) (flutter/flutter#174245) 2025-08-21 bkonyi@google.com [ Widget Preview ] Add regression test for issue 173895 (flutter/flutter#174037) 2025-08-21 okorohelijah@google.com Improve xcresult comment and naming (flutter/flutter#173129) 2025-08-21 matanlurey@users.noreply.github.com Update `.gemini/styleguide.md` to encourage `master`-only (flutter/flutter#174065) 2025-08-21 bkonyi@google.com [ Widget Preview ] Fix crash when attempting to provide non-const params to a `Preview` (flutter/flutter#174242) 2025-08-21 engine-flutter-autoroll@skia.org Roll Skia from 721e68fe652a to c09589f7ca69 (12 revisions) (flutter/flutter#174162) 2025-08-21 engine-flutter-autoroll@skia.org Roll Dart SDK from 0d0a0c394381 to c153c5259e62 (7 revisions) (flutter/flutter#174235) 2025-08-21 bkonyi@google.com [ Tool ] Throw `ToolExit` when asset entries use absolute paths (flutter/flutter#174230) 2025-08-21 engine-flutter-autoroll@skia.org Roll Dart SDK from 0d0a0c394381 to c153c5259e62 (7 revisions) (flutter/flutter#174227) 2025-08-21 bkonyi@google.com [ Tool ] Cleanup widget preview and frontend server shutdown (flutter/flutter#173863) 2025-08-21 matanlurey@users.noreply.github.com Use an alternative to `git describe` for `master` version resolution (flutter/flutter#174088) 2025-08-21 matt.kosarek@canonical.com Report a correct display ID in the window metrics event on win32 (flutter/flutter#174156) 2025-08-21 47866232+chunhtai@users.noreply.github.com Revert "Update the AccessibilityPlugin::Announce method to account fo… (flutter/flutter#174223) 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 bmparr@google.com,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
mboetger
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Sep 18, 2025
…#173863) Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.
korca0220
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Sep 22, 2025
…#173863) Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.
Jaineel-Mamtora
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Sep 24, 2025
…#173863) Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.
engine-flutter-autoroll
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Prevents the frontend server from throwing ToolExit with the "The Dart compiler exited unexpectedly." on shutdown via a signal.