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[ Widget Preview ] Don't crash when directory watcher restarts on Windows - #173987
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This pull request effectively addresses a crash on Windows related to the directory watcher by handling a specific FileSystemException. The approach of using an onError handler in the stream listener is appropriate and well-contained. The introduction of a WatcherBuilder is a good change that improves testability.
I have one suggestion regarding code style to improve the logical grouping of class members in PreviewDetector, in accordance with the Flutter style guide.
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….dart Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
matanlurey
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Should have been included in #173987
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flutter/flutter@2265d94...e65380a 2025-08-19 engine-flutter-autoroll@skia.org Roll Dart SDK from 502455ee300b to 9105d946af95 (3 revisions) (flutter/flutter#174002) 2025-08-18 matanlurey@users.noreply.github.com Add `open_jdk` to `Linux analyze` (flutter/flutter#173988) 2025-08-18 magder@google.com Add "team-ios" label to iOS team triage query (flutter/flutter#173997) 2025-08-18 1063596+reidbaker@users.noreply.github.com Migrate deeplink json creation to public AGP api (flutter/flutter#173794) 2025-08-18 bkonyi@google.com [ Widget Preview ] Don't crash when directory watcher restarts on Windows (flutter/flutter#173987) 2025-08-18 bkonyi@google.com [ Widget Preview ] Don't try to instantiate invalid `@Preview()` applications (flutter/flutter#173984) 2025-08-18 737941+loic-sharma@users.noreply.github.com Explain how to run Google Test tests directly (flutter/flutter#173978) 2025-08-18 58529443+srujzs@users.noreply.github.com [flutter_tools] Use DWDS 25.0.1 (flutter/flutter#173777) 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
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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flutter/flutter@2265d94...e65380a 2025-08-19 engine-flutter-autoroll@skia.org Roll Dart SDK from 502455ee300b to 9105d946af95 (3 revisions) (flutter/flutter#174002) 2025-08-18 matanlurey@users.noreply.github.com Add `open_jdk` to `Linux analyze` (flutter/flutter#173988) 2025-08-18 magder@google.com Add "team-ios" label to iOS team triage query (flutter/flutter#173997) 2025-08-18 1063596+reidbaker@users.noreply.github.com Migrate deeplink json creation to public AGP api (flutter/flutter#173794) 2025-08-18 bkonyi@google.com [ Widget Preview ] Don't crash when directory watcher restarts on Windows (flutter/flutter#173987) 2025-08-18 bkonyi@google.com [ Widget Preview ] Don't try to instantiate invalid `@Preview()` applications (flutter/flutter#173984) 2025-08-18 737941+loic-sharma@users.noreply.github.com Explain how to run Google Test tests directly (flutter/flutter#173978) 2025-08-18 58529443+srujzs@users.noreply.github.com [flutter_tools] Use DWDS 25.0.1 (flutter/flutter#173777) 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
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in #173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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…dows (flutter#173987) Fixesflutter#173895 This is a top-10 crasher for `3.35.{0,1}`. --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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Should have been included in flutter#173987 --------- Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
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flutter/flutter@2265d94...e65380a 2025-08-19 engine-flutter-autoroll@skia.org Roll Dart SDK from 502455ee300b to 9105d946af95 (3 revisions) (flutter/flutter#174002) 2025-08-18 matanlurey@users.noreply.github.com Add `open_jdk` to `Linux analyze` (flutter/flutter#173988) 2025-08-18 magder@google.com Add "team-ios" label to iOS team triage query (flutter/flutter#173997) 2025-08-18 1063596+reidbaker@users.noreply.github.com Migrate deeplink json creation to public AGP api (flutter/flutter#173794) 2025-08-18 bkonyi@google.com [ Widget Preview ] Don't crash when directory watcher restarts on Windows (flutter/flutter#173987) 2025-08-18 bkonyi@google.com [ Widget Preview ] Don't try to instantiate invalid `@Preview()` applications (flutter/flutter#173984) 2025-08-18 737941+loic-sharma@users.noreply.github.com Explain how to run Google Test tests directly (flutter/flutter#173978) 2025-08-18 58529443+srujzs@users.noreply.github.com [flutter_tools] Use DWDS 25.0.1 (flutter/flutter#173777) 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
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Fixes#173895
This is a top-10 crasher for
3.35.{0,1}.