Cause returns the cause of an error.

Fatal returns a wrapped error which implements the Fataler interface.

Fatalf returns an error which implements the Fataler interface.

IsFatal returns true if err is a fatal message that should be printed to the user.

Errorf creates an error based on a format string and values.

New creates a new error based on message.

Wrap wraps an error retrieved from outside of restic.

Wrapf returns an error annotating err with the format specifier.

Fataler is an error which should be printed to the user directly.