// getRelevantFileModeForPath returns the FileMode for the given file or, when
// the file does not exist, its containing directory.
func (a *accessControl) relevantFileModeForPath(p gopath.GoPath) os.FileMode {
if a.hasErr() || p.HasErr() {
return 0
}
var pStat = p.Stat()
if !pStat.IsExists() {
// HINT: Inspect permissions of containing directory
pStat = p.Dir().Stat()
}
a.setErr(pStat.Err())
return pStat.FileMode()
}