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Added default paths, exceptions, and php5 oop #7

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Added default paths, exceptions, and php5 oop #7

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7e8ff9a
Fixed a couple of things
davidsteinsland Feb 14, 2013
6dce9ac
Fixed whitespace issues
davidsteinsland Feb 14, 2013
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194 changes: 103 additions & 91 deletions yuicompressor.php
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Original file line number Diff line number Diff line change
Expand Up @@ -2,104 +2,116 @@

class YUICompressor
{

// absolute path to YUI jar file.
private static $JAR_PATH;
private static $TEMP_FILES_DIR;
private $options = array('type' => 'js',
'linebreak' => false,
'verbose' => false,
'nomunge' => false,
'semi' => false,
'nooptimize' => false);
private $files = array();
private $string = '';

// construct with a path to the YUI jar and a path to a place to put temporary files
function __construct($JAR_PATH, $TEMP_FILES_DIR, $options = array())
{
$this->JAR_PATH = $JAR_PATH;
$this->TEMP_FILES_DIR = $TEMP_FILES_DIR;

foreach ($options as $option => $value)
{
$this->setOption($option, $value);
}
}

// set one of the YUI compressor options
function setOption($option, $value)
{
$this->options[$option] = $value;
}
const DEFAULT_JAR_PATH = 'yuicompressor.jar';
const DEFAULT_TMP_DIR = '/tmp/yuicompressor';

private $JAR_PATH;
private $TEMP_FILES_DIR;
private $options = [
'type' => 'js',
'linebreak' => false,
'verbose' => false,
'nomunge' => false,
'semi' => false,
'nooptimize' => false
];

private $files = array();
private $string = '';

// add a file (absolute path) to be compressed
function addFile($file)
{
array_push($this->files, $file);
}

// add a strong to be compressed
function addString($string)
{
$this->string .= ' ' . $string;
}
public function __construct($JAR_PATH = null, $TEMP_FILES_DIR = null, $options = array())
{
$this->JAR_PATH = realpath ( $JAR_PATH ?: self::DEFAULT_JAR_PATH );
$this->TEMP_FILES_DIR = realpath ( $TEMP_FILES_DIR ?: self::DEFAULT_TMP_DIR );

if ( ! file_exists ( $this->JAR_PATH) )
throw new Exception ( "Cannot find the JAR file: " . $this->JAR_PATH );
if ( ! file_exists ( $this->TEMP_FILES_DIR) )
throw new Exception ( "Cannot find the specified directory: " . $this->TEMP_FILES_DIR);

foreach ($options as $option => $value)
$this->setOption($option, $value);
}

// the meat and potatoes, executes the compression command in shell
function compress()
{

// read the input
foreach ($this->files as $file) {
$this->string .= file_get_contents($file) or die("Cannot read from uploaded file");
}

// create single file from all input
$input_hash = sha1($this->string);
$file = $this->TEMP_FILES_DIR . '/' . $input_hash . '.txt';
$fh = fopen($file, 'w') or die("Can't create new file");
fwrite($fh, $this->string);
fclose($fh);

/**
* Sets an option to the YUICompressor
* @see http://yui.github.com/yuicompressor
*/
public function setOption ($option, $value)
{
$this->options[$option] = $value;
}

/**
* Adds a file which should be compressed.
* Path may be relative or absolute
*/
public function addFile ($file)
{
$file = realpath ($file);

if ( ! file_exists ($file))
throw new Exception ( "Cannot locate file: " . $file);

array_push($this->files, $file);
$this->string .= file_get_contents ($file);
}

/**
* Used to pass a string instead of a file,
* i.e. with file_get_contents()
*/
public function addString ($string)
{
$this->string .= ' ' . $string;
}

/**
* Compresses the given files and returns the compressed
* data as a string.
*/
public function compress()
{
if ( strlen ( $this->string) == 0 )
throw new Exception ("Invalid State: Cannot compress when no data is given.");

// create single file from all input
$input_hash = sha1($this->string);
$file = $this->TEMP_FILES_DIR . DIRECTORY_SEPARATOR . $input_hash . '.txt';

$fh = fopen($file, 'w');

if ( ! $fh )
throw new Exception ( "Cannot write data to temp file" );

fwrite($fh, $this->string);
fclose($fh);

// start with basic command
$cmd = "java -Xmx32m -jar " . escapeshellarg($this->JAR_PATH) . ' ' . escapeshellarg($file) . " --charset UTF-8";

// set the file type
$cmd .= " --type " . (strtolower($this->options['type']) == "css" ? "css" : "js");

// and add options as needed
if ($this->options['linebreak'] && intval($this->options['linebreak']) > 0) {
$cmd .= ' --line-break ' . intval($this->options['linebreak']);
}
$cmd = "java -Xmx32m -jar " . escapeshellarg($this->JAR_PATH) . ' ' . escapeshellarg($file) . " --charset UTF-8";

// set the file type
$cmd .= " --type " . (strtolower($this->options['type']) == "css" ? "css" : "js");

// and add options as needed
if ($this->options['linebreak'] && intval($this->options['linebreak']) > 0)
$cmd .= ' --line-break ' . intval($this->options['linebreak']);

if ($this->options['verbose']) {
$cmd .= " -v";
}

if ($this->options['nomunge']) {
if ($this->options['verbose'])
$cmd .= " -v";

if ($this->options['nomunge'])
$cmd .= ' --nomunge';
}

if ($this->options['semi']) {
if ($this->options['semi'])
$cmd .= ' --preserve-semi';
}

if ($this->options['nooptimize']) {
if ($this->options['nooptimize'])
$cmd .= ' --disable-optimizations';
}

// execute the command
exec($cmd . ' 2>&1', $raw_output);

// add line breaks to show errors in an intelligible manner
$flattened_output = implode("\n", $raw_output);

// clean up (remove temp file)
unlink($file);

// return compressed output
return $flattened_output;
}

exec($cmd . ' 2>&1', $raw_output);
unlink($file);

return $raw_output;
}
}

?>