traefik/vendor/github.com/docker/distribution/registry/storage/util.go

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2018-01-09 20:46:04 +00:00
package storage
import (
"github.com/docker/distribution/context"
"github.com/docker/distribution/registry/storage/driver"
)
// Exists provides a utility method to test whether or not a path exists in
// the given driver.
func exists(ctx context.Context, drv driver.StorageDriver, path string) (bool, error) {
if _, err := drv.Stat(ctx, path); err != nil {
switch err := err.(type) {
case driver.PathNotFoundError:
return false, nil
default:
return false, err
}
}
return true, nil
}