Fixes an error propagation bug that resulted in a hang #30
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More specifically, if an "!" exclude pattern is provided, the error from github.com/docker/docker/pkg/fileutils.NewPatternMatcher would be not be returned to the client, and would additionally block the other goroutines from the same errgroup, resulting in the hang. Signed-off-by: Tibor Vass <tibor@docker.com>
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
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@tiborvass pushed an extra commit |
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Tested in buildkit, LGTM |
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LGTM |
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@tiborvass There is a slight problem with this test that showed in CI. If the receiver isn't blocked when the walker errors, the receiver would close directly from |
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Signed-off-by: Tibor Vass tibor@docker.com