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<?php |
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/** |
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* Shell |
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* |
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* A shell access proxy. |
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* |
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* @package core |
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* @author [email protected] |
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* @copyright Caffeina srl - 2015 - http://caffeina.it |
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*/ |
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class Shell { |
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use Module; |
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protected static $aliases = []; |
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protected $command; |
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/** |
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* Compile a shell command |
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* @param string $command |
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* @param array $params |
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* @return string |
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*/ |
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protected static function _compileCommand($command,array $params){ |
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$s = $w = []; |
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foreach ($params as $p) { |
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if ($p instanceof static) { |
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$s[] = '$('.$p->getShellCommand().')'; |
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} else if (is_array($p)) foreach ($p as $key => $value) { |
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if(is_numeric($key)){ |
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$w[] = '--'.$value; |
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} else { |
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if(is_bool($value)){ |
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if($value) $w[] = '--'.$key; |
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} else { |
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$w[] = '--'.$key.'='.escapeshellarg($value); |
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} |
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} |
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} else { |
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$s[] = $p; |
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} |
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} |
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return trim( |
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'/usr/bin/env '.$command.' '.implode(' ',array_merge($w,$s)) |
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); |
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} |
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/** |
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* Returns the compiled shell command |
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* @return string |
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*/ |
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public function getShellCommand(){ |
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return $this->command; |
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} |
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public static function __callStatic($command,$params){ |
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$aliases = static::$aliases; |
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// Check if is an alias |
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if (isset($aliases[$command])){ |
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if(!$results = $aliases[$command](...$params)) |
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throw new Exception('Shell aliases must return a Shell class or a command string.'); |
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return $results instanceof static? $results : new static($results); |
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} else { |
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return new static($command,$params); |
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} |
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} |
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public function __construct($command,$params=null){ |
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$this->command = $params?static::_compileCommand($command,$params):$command; |
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} |
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public function __toString(){ |
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$output = []; |
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exec($this->command,$output,$error_code); |
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return empty($output)?'':implode(PHP_EOL,$output); |
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} |
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/** |
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* Concatenate multiple shell commands via piping |
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* @return Shell The piped shell command |
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*/ |
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View Code Duplication |
public static function pipe(/* ... */){ |
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$cmd = []; |
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foreach (func_get_args() as $item) { |
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$cmd[] = ($item instanceof static)?$item->getShellCommand():$item; |
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} |
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return new static(implode(' | ',$cmd)); |
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} |
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/** |
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* Concatenate multiple shell commands via logical implication ( && ) |
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* @return Shell The concatenated shell command |
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*/ |
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View Code Duplication |
public static function sequence(...$items){ |
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$cmd = []; |
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foreach ($items as $item) { |
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$cmd[] = ($item instanceof static)?$item->getShellCommand():$item; |
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} |
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return new static(implode(' && ',$cmd)); |
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} |
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public static function execCommand($command,$params = null){ |
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return new static($command,$params); |
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} |
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public static function alias($command,callable $callback){ |
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static::$aliases[$command] = $callback; |
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} |
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public static function escape($arg){ |
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return escapeshellarg($arg); |
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} |
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public function run(){ |
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return $this->__toString(); |
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} |
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} /* End of class */ |
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caffeina-core /
core
