containerd/snapshot/errors.go

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package snapshot
import "github.com/pkg/errors"
var (
// ErrSnapshotNotExist is returned when a snapshot cannot be found
ErrSnapshotNotExist = errors.New("snapshot does not exist")
// ErrSnapshotExist is returned when an operation to create a snapshot
// encounters a snapshot with the same key
ErrSnapshotExist = errors.New("snapshot already exists")
// ErrSnapshotNotActive is returned when a request which requires an
// active snapshot encounters a non-active snapshot.
ErrSnapshotNotActive = errors.New("snapshot is not active")
// ErrSnapshotNotCommitted is returned when a request which requires a
// committed snapshot encounters a non-committed snapshot.
ErrSnapshotNotCommitted = errors.New("snapshot is not committed")
)
// IsNotExist returns whether the error represents that a snapshot
// was not found.
func IsNotExist(err error) bool {
return errors.Cause(err) == ErrSnapshotNotExist
}
// IsExist returns whether the error represents whether a snapshot
// already exists using a provided key.
func IsExist(err error) bool {
return errors.Cause(err) == ErrSnapshotExist
}
// IsNotActive returns whether the error represents a request
// for a non active snapshot when an active snapshot is expected.
func IsNotActive(err error) bool {
return errors.Cause(err) == ErrSnapshotNotActive
}
// IsNotCommitted returns whether the error represents a request
// for a non committed snapshot when a committed snapshot is expected.
func IsNotCommitted(err error) bool {
return errors.Cause(err) == ErrSnapshotNotCommitted
}