[flutter_tools, devicelab] Fix filesystem safety guard for symlinked temp directories#187320
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This pull request updates FSGuardIOOverrides in dev/devicelab/lib/framework/fs_safety.dart and packages/flutter_tools/test/src/fs_safety.dart to resolve symbolic links for the system temporary directory, and adds a test to verify this behavior. The reviewer suggests catching all types of objects instead of just Exception when resolving symbolic links, as UnimplementedError and UnsupportedError inherit from Error and would otherwise cause crashes in test environments using mock directories.
…temp directories Resolve symbolic links of the system temporary directory before canonicalizing it in `FSGuardIOOverrides`. On macOS, the system temp directory `/var/folders/...` is a symlink to `/private/var/folders/...`. Tests using `createResolvedTempDirectorySync` use the resolved path, causing the filesystem guard to mistakenly block modifications because they string-wise do not match the unresolved temp path. Also: * Cache the resolved canonical temp path inside `FSGuardIOOverrides` to avoid costly I/O operations on every filesystem check. * Add a regression test in `io_test.dart` to verify symlinked temp directory support. * Use `addTearDown` in the new test for robust resource cleanup.
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Thanks for the quick fix!
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flutter/flutter@b05a9d7...54e199a 2026-06-01 [email protected] Roll Fuchsia Linux SDK from jMR_VXQi07kAk8vbR... to q27k7_um1GvVrySZS... (flutter/flutter#187338) 2026-06-01 [email protected] Remove use of deprecated API related to removal of the VM isolate. (flutter/flutter#187013) 2026-06-01 [email protected] Improve `dependOnInheritedWidgetOfExactType` documentation to explain why it is bad to use it in initState (flutter/flutter#186216) 2026-06-01 [email protected] Revert "Move dart-lang/ai to a top level third party dependency in en… (flutter/flutter#187370) 2026-05-30 [email protected] Move dart-lang/ai to a top level third party dependency in engine (flutter/flutter#187268) 2026-05-30 [email protected] add sdf golden variants for OpenGL (flutter/flutter#187246) 2026-05-30 [email protected] Roll Skia from dc01525ac468 to 0aee4675e0ad (6 revisions) (flutter/flutter#187334) 2026-05-29 [email protected] Roll Skia from c480ba2eb2eb to dc01525ac468 (4 revisions) (flutter/flutter#187317) 2026-05-29 [email protected] Remove the Y coordinate flip workaround in the Material stretch effect shader now that it is no longer required by the Impeller GLES back end (flutter/flutter#187247) 2026-05-29 [email protected] [flutter_tools, devicelab] Fix filesystem safety guard for symlinked temp directories (flutter/flutter#187320) 2026-05-29 [email protected] Brings linux tests out of bringup. (flutter/flutter#187271) 2026-05-29 [email protected] Roll pub packages (flutter/flutter#187321) 2026-05-29 [email protected] Roll Fuchsia GN SDK from SEfYx3xgueX3aFAY3... to oOAcFhkoE2_-Sy67z... (flutter/flutter#187310) 2026-05-29 [email protected] Fix mismatch between hit-test tree and traversal tree (flutter/flutter#186826) 2026-05-29 [email protected] [Impeller] Ensure that the TextureGLES destructor cleans up all objects that it holds including the sync fence (flutter/flutter#187216) 2026-05-29 [email protected] Roll Packages from 10cbdc5 to e930ced (3 revisions) (flutter/flutter#187306) 2026-05-29 [email protected] Roll Skia from d9d6b440c4e7 to c480ba2eb2eb (1 revision) (flutter/flutter#187305) 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 [email protected],[email protected] 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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…r#11816) flutter/flutter@b05a9d7...54e199a 2026-06-01 [email protected] Roll Fuchsia Linux SDK from jMR_VXQi07kAk8vbR... to q27k7_um1GvVrySZS... (flutter/flutter#187338) 2026-06-01 [email protected] Remove use of deprecated API related to removal of the VM isolate. (flutter/flutter#187013) 2026-06-01 [email protected] Improve `dependOnInheritedWidgetOfExactType` documentation to explain why it is bad to use it in initState (flutter/flutter#186216) 2026-06-01 [email protected] Revert "Move dart-lang/ai to a top level third party dependency in en… (flutter/flutter#187370) 2026-05-30 [email protected] Move dart-lang/ai to a top level third party dependency in engine (flutter/flutter#187268) 2026-05-30 [email protected] add sdf golden variants for OpenGL (flutter/flutter#187246) 2026-05-30 [email protected] Roll Skia from dc01525ac468 to 0aee4675e0ad (6 revisions) (flutter/flutter#187334) 2026-05-29 [email protected] Roll Skia from c480ba2eb2eb to dc01525ac468 (4 revisions) (flutter/flutter#187317) 2026-05-29 [email protected] Remove the Y coordinate flip workaround in the Material stretch effect shader now that it is no longer required by the Impeller GLES back end (flutter/flutter#187247) 2026-05-29 [email protected] [flutter_tools, devicelab] Fix filesystem safety guard for symlinked temp directories (flutter/flutter#187320) 2026-05-29 [email protected] Brings linux tests out of bringup. (flutter/flutter#187271) 2026-05-29 [email protected] Roll pub packages (flutter/flutter#187321) 2026-05-29 [email protected] Roll Fuchsia GN SDK from SEfYx3xgueX3aFAY3... to oOAcFhkoE2_-Sy67z... (flutter/flutter#187310) 2026-05-29 [email protected] Fix mismatch between hit-test tree and traversal tree (flutter/flutter#186826) 2026-05-29 [email protected] [Impeller] Ensure that the TextureGLES destructor cleans up all objects that it holds including the sync fence (flutter/flutter#187216) 2026-05-29 [email protected] Roll Packages from 10cbdc5 to e930ced (3 revisions) (flutter/flutter#187306) 2026-05-29 [email protected] Roll Skia from d9d6b440c4e7 to c480ba2eb2eb (1 revision) (flutter/flutter#187305) 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 [email protected],[email protected] 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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…temp directories (flutter#187320) Resolve symbolic links of the system temporary directory before canonicalizing it in `FSGuardIOOverrides`. On macOS, the system temp directory `/var/folders/...` is a symlink to `/private/var/folders/...`. Tests using `createResolvedTempDirectorySync` use the resolved path, causing the filesystem guard to mistakenly block modifications because they string-wise do not match the unresolved temp path. Also: * Cache the resolved canonical temp path inside `FSGuardIOOverrides` to avoid costly I/O operations on every filesystem check. * Add a regression test in `io_test.dart` to verify symlinked temp directory support. * Use `addTearDown` in the new test for robust resource cleanup.
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Resolve symbolic links of the system temporary directory before canonicalizing it in
FSGuardIOOverrides.On macOS, the system temp directory
/var/folders/...is a symlink to/private/var/folders/.... Tests usingcreateResolvedTempDirectorySyncuse the resolved path, causing the filesystem guard to mistakenly block modifications because they string-wise do not match the unresolved temp path.Also:
FSGuardIOOverridesto avoid costly I/O operations on every filesystem check.io_test.dartto verify symlinked temp directory support.addTearDownin the new test for robust resource cleanup.