/**
* @param string $path
* @return string
*/
private function validatePath(string $path) : string
{
$path = realpath($path) ?: $path;
if (!file_exists($path)) {
throw FileNotExistsException::exceptionForFile($path);
}
if (!is_readable($path)) {
throw FileNotReadableException::exceptionForFile($path);
}
return $path;
}
/**
* @return string
*/
public function getContents() : string
{
if (!$this->contents) {
if (!file_exists($this->path)) {
FileNotExistsException::exceptionForFile($this->path);
}
if (!is_readable($this->path)) {
FileNotReadableException::exceptionForFile($this->path);
}
$this->contents = file_get_contents($this->path);
}
return $this->contents;
}