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37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
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package graphdriver
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const (
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// ErrNotSupported returned when driver is not supported.
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ErrNotSupported NotSupportedError = "driver not supported"
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// ErrPrerequisites returned when driver does not meet prerequisites.
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ErrPrerequisites NotSupportedError = "prerequisites for driver not satisfied (wrong filesystem?)"
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// ErrIncompatibleFS returned when file system is not supported.
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ErrIncompatibleFS NotSupportedError = "backing file system is unsupported for this graph driver"
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)
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// ErrUnSupported signals that the graph-driver is not supported on the current configuration
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type ErrUnSupported interface {
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NotSupported()
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}
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// NotSupportedError signals that the graph-driver is not supported on the current configuration
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type NotSupportedError string
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func (e NotSupportedError) Error() string {
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return string(e)
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}
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// NotSupported signals that a graph-driver is not supported.
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func (e NotSupportedError) NotSupported() {}
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// IsDriverNotSupported returns true if the error initializing
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// the graph driver is a non-supported error.
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func IsDriverNotSupported(err error) bool {
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switch err.(type) {
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case ErrUnSupported:
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return true
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default:
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return false
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}
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}
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