/**
* Write a string to a file. If file does not exist, it will be created. If file exists,
* its current content will be overwritten unless the "append" option is provided. Parent
* directories will be created if they do not already exist.
*
* Exemples:
*
* * // Touching a file
* * PurFile::write('/path/to/file.txt');
*
* * // (Over)Write content to a file
* * PurFile::write('/path/to/file.txt','my content');
*
* * // Add or write (if new) content to a file
* * PurFile::write('/path/to/file.txt','my content',array('append'));
*
* Options may include:
* - permissions: chmod mask, apply only when the file is created, default to php 0644
* - append: boolean If true, new content will be appended to the destination file if it exists
*
* @return boolean true
* @param mixed(string or resource) $path Target file path
* @param string $content Content to write
* @param object $options[optional]
*/
public static function write($path,$content='',$options=array()){
$options = PurArray::sanitize($options);
switch(gettype($path)){
case 'string':
if(!file_exists($path)){
$dir = dirname($path);
PurFile::mkdir($dir);
//if(!is_writable($dir)) throw new Exception('File Not Writable in Dir: '.$dir);
$isNew = true;
}else if(!is_writable($path)) throw new Exception('File Not Writable: '.$path);
$resource = fopen($path,empty($options['append'])?'w':'a');
if(isset($isNew)&&isset($options['permissions'])){
chmod($path,$options['permissions']);
}
break;
case 'resource':
$resource = $path;
break;
default:
throw new InvalidArgumentException('Path is expected to be a string or a resource');
}
flock($resource,LOCK_EX);
fwrite($resource,$content);
flock($resource,LOCK_UN);
fclose($resource);
return true;
}
/**
* Options may include:
* - *bare* Intialize a bare Git repository
* - *bin* Path to the Git command
* - *cwd* Directory or list of directories to initialize
*
* @param array $options required Must include the "cwd" setting.
* @return true Return true on success, otherwise an exception is thrown
*
* @param string $cwd required Path to the directory to initialize
* @param array $options optional All parameters are optional
* @return true Return true on success, otherwise an exception is thrown
*/
public static function init(){
$args = func_get_args();
switch(count($args)){
case 1:
if(is_string($args[0])){
$options = array(
'cwd' => array($args[0]=>true));
}else if(is_array($args[0])){
$options = PurArray::sanitize($args[0]);
if(!isset($options['cwd'])){
throw new InvalidArgumentException('Options must include the "cwd" key');
}else if(is_string($options['cwd'])){
$options['cwd'] = array($options['cwd']=>true);
}else if(!is_array($options['cwd'])){
throw new InvalidArgumentException('Invalid "cwd" option: "'.PurLang::toString($options['cwd']).'"');
}
}else{
throw new InvalidArgumentException('Invalid Arguments: "'.PurLang::toString($args).'"');
}
break;
case 2:
if(is_string($args[0])&&is_array($args[1])){
$options = PurArray::sanitize($args[1]);
if(!isset($options[1]['cwd'])){
$options['cwd'] = array();
}
$options['cwd'][$args[0]] = true;
}else{
throw new InvalidArgumentException('Invalid Arguments: "'.PurLang::toString($args).'"');
}
break;
default:
throw new InvalidArgumentException('Invalid Arguments Count: '.PurLang::toString($args));
}
unset($args);
if(empty($options['bin'])){
$options['bin'] = self::$bin;
}
while(list($cwd,) = each($options['cwd'])){
if(!is_string($cwd)){
throw new InvalidArgumentException('Invalid "cwd" option: "'.PurLang::toString($cwd).'"');
}
$command = $options['bin'];
$command .= ' init';
if(!empty($options['bare'])){
$command .= ' --bare';
}
if(!is_dir($cwd)){
PurFile::mkdir($cwd);
}
PurCli::exec($command,array_merge($options,array('cwd'=>$cwd)));
}
return true;
}
/**
* Return a URL content or write its output to file if a destination is provided.
*
* Note, this implementation require the PHP CURL extension installed.
*
* @param string $url Content source
* @param string $destination [optional] File destination where output should be written
* @return mixed URL content or boolean true if a destination is provided
*/
public static function read($url,$destination=null){
if(!function_exists('curl_init')){
throw new Exception('PHP CURL Extension Required');
}
$ch = curl_init($url);
curl_setopt($ch,CURLOPT_HEADER,false);
if($destination){
PurFile::mkdir(dirname($destination));
if(file_exists($destination)) PurFile::delete($destination);
$fp = fopen($destination,'w');
curl_setopt($ch,CURLOPT_FILE,$fp);
}else{
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1) ;
}
if(($data = curl_exec($ch))===false){
throw new Exception('Failed to download url: "'.$url.'"');
}
$header = curl_getinfo($ch);
curl_close($ch);
if($destination){
fclose($fp);
}
if($header['http_code']!=self::SUCCESS_OK){
if($destination){
PurFile::delete($destination);
}
throw new Exception('Download Failed: "'.constant('PurHTTP::'.'CODE_'.$header['http_code']).'" ('.$header['http_code'].')');
}
return $data;
}
