Fix *.* wildcard glob matching regression #6531
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Forgind
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Jun 7, 2021
rainersigwald
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AR-May
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Jun 7, 2021
ladipro
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I have rebased to 16.10, fixed the new unit test to pass on Linux, and updated the description with the servicing template. |
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Merged this except the ref assembly nonsense in #6537. |
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Fixes #6502
Summary
This change fixes a regression in glob matching where files without extension are erroneously not matched when taking a specific globbing code path.
Customer impact
Any customer who uses a glob pattern susceptible to the bug and has files without extensions in their source tree is affected. The bug was reported by external customers.
Regression?
Yes, caused by #6151 where glob matching was optimized which internally made it take a different code path.
Changes Made
Fixes the regression by properly handling
*.*to mean all files, not just files with a dot in the name. This convention is used in .NET APIs on all platforms and matches the pre-regression behavior.Testing
Added unit test coverage. Also verified locally with the repro provided by the original bug reporter.
Risk
Low. The star patterns are special-cased to mean all files, other patterns are unaffected.