package pathlib

import "fmt"

var (
	// ErrDoesNotImplement indicates that the afero filesystem doesn't
	// implement the required interface.
	ErrDoesNotImplement = fmt.Errorf("doesn't implement required interface")
	// ErrInfoIsNil indicates that a nil os.FileInfo object was provided
	ErrInfoIsNil = fmt.Errorf("provided os.Info object was nil")
	// ErrInvalidAlgorithm specifies that an unknown algorithm was given for Walk
	ErrInvalidAlgorithm = fmt.Errorf("invalid algorithm specified")
	// ErrLstatNotPossible specifies that the filesystem does not support lstat-ing
	ErrLstatNotPossible = fmt.Errorf("lstat is not possible")
	// ErrRelativeTo indicates that we could not make one path relative to another
	ErrRelativeTo  = fmt.Errorf("failed to make path relative to other")
	errWalkControl = fmt.Errorf("walk control")
	// ErrSkipSubtree indicates to the walk function that the current subtree of
	// directories should be skipped. It's recommended to only use this error
	// with the AlgorithmPreOrderDepthFirst algorithm, as many other walk algorithms
	// will not respect this error due to the nature of the ordering in which the
	// algorithms visit each node of the filesystem tree.
	ErrWalkSkipSubtree = fmt.Errorf("skip subtree: %w", errWalkControl)
	// ErrStopWalk indicates to the Walk function that the walk should be aborted.
	// DEPRECATED: Use ErrWalkStop
	ErrStopWalk = ErrWalkStop
	// ErrWalkStop indicates to the Walk function that the walk should be aborted.
	ErrWalkStop = fmt.Errorf("stop filesystem walk: %w", errWalkControl)
)