Method externalNodeByPath

filetree/tree.go:329–342

externalNodeByPath returns Node for given file path, and true, if it exists in the external files list. Otherwise returns nil, false.

(fpath string)

// externalNodeByPath returns Node for given file path, and true, if it
// exists in the external files list.  Otherwise returns nil, false.
func (ft *Tree) externalNodeByPath(fpath string) (*Node, error) {
	ehas, i := ft.hasExternalFile(fpath)
	if !ehas {
		return nil, fmt.Errorf("ExtFile not found on list: %v", fpath)
	}
	ekid := ft.ChildByName(externalFilesName, 0)
	if ekid == nil {
		return nil, fmt.Errorf("ExtFile not updated -- no ExtFiles node")
	}
	if n := ekid.AsTree().Child(i); n != nil {
		return AsNode(n), nil
	}
	return nil, fmt.Errorf("ExtFile not updated; index invalid")
}