/**
* Determine if a file path can be written to
*
* NOTE: if the path does not exist, the parent directories will be analyzed
* @param string $path An absolute path to the file to test
* @return boolean:true The file is writable
* @return string An error message indicating why the path test failed
*/
public static function isWritable($path)
{
# if the file doesn't exist, ensure its parent dir is writable
if (!file_exists($path)) {
return Dir::isWritable(dirname($path));
}
return Path::test($path, self::WRITABLE);
}
/**
* {@inheritdoc}
*/
public function validate()
{
$path = Path::normalize($this->value);
$test = $this->isDir === true ? Dir::isWritable($path) : File::isWritable($path);
if ($test === true) {
$this->value = $path;
return true;
}
$this->message = $test;
return false;
}
/**
* {@inheritdoc}
*/
public function validate()
{
if (($test = Dir::isWritable($this->value)) !== true) {
$this->message = $test;
return false;
} else {
if (file_exists($this->value) && $this->mustBeEmpty === true && count(scandir($this->value)) !== 2) {
$this->message = "'{$this->value}' must be an empty directory";
return false;
}
}
return true;
}