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// Copyright 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
// +build !windows
package filetesting
import (
"os"
"syscall"
)
// isNotExist returns true if the error is consistent with an attempt to
// reference a file that does not exist. This works around the occasionally
// unhelpful behaviour of os.IsNotExist, which does not recognise the error
// produced when trying to read a path in which some component appears to
// reference a directory but actually references a file. For example, if
// "foo" is a file, an attempt to read "foo/bar" will generate an error that
// does not satisfy os.IsNotExist, but will satisfy filetesting.isNotExist.
func isNotExist(err error) bool {
if os.IsNotExist(err) {
return true
}
if e, ok := err.(*os.PathError); ok && e.Err == syscall.ENOTDIR {
return true
}
return false
}
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