/**
* Load the configuration from a file
* @ignore
* @param string $configfile The configuration file
* @return Args $this
*/
private function loadFromConfigFile($configfile)
{
global $argv;
if (is_null($configfile)) {
$configfile = dirname($argv[0]) . DIRECTORY_SEPARATOR . pathinfo($argv[0], PATHINFO_FILENAME) . ".args.json";
}
if (!is_file($configfile)) {
return;
}
$config = json_decode(file_get_contents($configfile), true);
if (json_last_error() != JSON_ERROR_NONE) {
Helper::throwEx("JSON parse error from {$configfile}: " . json_last_error_msg());
}
$this->loadFromArray($config);
return $this;
}
/**
* Set the alias of the command
* @api
* @param string $aka The alias of the command
* @return Command $this
*/
public function aka($aka)
{
$check = $this->args->_checkCmdName($aka);
if (is_string($check)) {
Helper::throwEx($check);
}
$this->alias[] = $aka;
$names = $this->name . (empty($this->alias) ? "" : "|" . implode("|", $this->alias));
$this->args->_adjustLen(0, strlen($names) - 2);
return $this;
}
/**
* The callback for the option.
* The value can be changed.
* Value can also be validated/checked in this callback.
* @api
* @alias must, follow, callback
* @param callable $rule The callback
* @example
* ```php
* function ($option) {
* $option->setValue (intval('1')); // change the value to int type
* }
* function ($option) {
* $value = $option->getValue();
* // array option
* // will print the error, e.g.: Need at least 2 values for option xx.
* if (sizeof($value) < 2) return false;
* return true;
* }
* ```
* @param string $error The error to show if the callback returns false
* @return Option $this
*/
public function obey($rule, $error = "{option} is not in right format.")
{
if (!is_callable($rule)) {
Helper::throwEx('Callback must be callable.');
}
$option = $this->matched == "-{$this->name}" ? "" : "(-{$this->name})";
$option = $this->matched ? $this->matched . $option : "-{$this->name}";
$this->ruleError = str_replace("{option}", $option, $error);
$this->rule = $rule;
return $this;
}
