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34 lines
807 B
Go
34 lines
807 B
Go
6 years ago
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package wclayer
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import (
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"github.com/Microsoft/hcsshim/internal/hcserror"
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"github.com/sirupsen/logrus"
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)
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// LayerExists will return true if a layer with the given id exists and is known
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// to the system.
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func LayerExists(path string) (_ bool, err error) {
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title := "hcsshim::LayerExists"
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fields := logrus.Fields{
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"path": path,
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}
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logrus.WithFields(fields).Debug(title)
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defer func() {
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if err != nil {
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fields[logrus.ErrorKey] = err
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logrus.WithFields(fields).Error(err)
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} else {
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logrus.WithFields(fields).Debug(title + " - succeeded")
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}
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}()
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// Call the procedure itself.
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var exists uint32
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err = layerExists(&stdDriverInfo, path, &exists)
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if err != nil {
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return false, hcserror.New(err, title+" - failed", "")
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}
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fields["layer-exists"] = exists != 0
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return exists != 0, nil
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}
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