/**
* Minify a CSS string
*
* @param string $css
*
* @param array $options (currently ignored)
*
* @return string
*/
public static function process($css, $options = array())
{
$obj = new Casset_Csscompressor($options);
return $obj->_process($css);
}
/**
* Takes a list of files, and combines them into a single minified file.
* Doesn't bother if none of the files have been modified since the cache
* file was written.
*
* @param string $type 'css' / 'js'
* @param array $file_group Array of ('file' => filename, 'minified' => is_minified)
* to combine and minify.
* @param bool $minify whether to minify the files, as well as combining them
* @return string The path to the cache file which was written.
*/
private static function combine($type, $file_group, $minify, $inline)
{
$filename = md5(implode('', array_map(function ($a) {
return $a['file'];
}, $file_group)) . ($minify ? 'min' : '')) . '.' . $type;
// Get the last modified time of all of the component files
$last_mod = 0;
foreach ($file_group as $file) {
// If it's a remote file just assume it isn't modified, otherwise
// we're stuck making a ton of HTTP requests
if (strpos($file['file'], '//') !== false) {
continue;
}
$mod = filemtime(DOCROOT . $file['file']);
if ($mod > $last_mod) {
$last_mod = $mod;
}
}
$filepath = DOCROOT . static::$cache_path . '/' . $filename;
$needs_update = !file_exists($filepath) || ($mtime = filemtime($filepath)) < $last_mod;
if ($needs_update) {
$content = '';
foreach ($file_group as $file) {
if (static::$show_files_inline) {
$content .= PHP_EOL . '/* ' . $file['file'] . ' */' . PHP_EOL . PHP_EOL;
}
if ($file['minified'] || !$minify) {
$content .= file_get_contents($file['file']) . PHP_EOL;
} else {
$file_content = file_get_contents($file['file']);
if ($file_content === false) {
throw new \Fuel_Exception("Couldn't not open file {$file['file']}");
}
if ($type == 'js') {
$content .= Casset_JSMin::minify($file_content) . PHP_EOL;
} elseif ($type == 'css') {
$css = Casset_Csscompressor::process($file_content) . PHP_EOL;
$content .= Casset_Cssurirewriter::rewrite($css, dirname($file['file']));
}
}
}
file_put_contents($filepath, $content, LOCK_EX);
$mtime = time();
}
if (!$inline) {
$filename .= '?' . $mtime;
}
return $filename;
}
/**
* Takes a list of files, and combines them into a single minified file.
* Doesn't bother if none of the files have been modified since the cache
* file was written.
*
* @param string $type 'css' / 'js'
* @param array $file_group Array of ('file' => filename, 'minified' => is_minified)
* to combine and minify.
* @param bool $minify whether to minify the files, as well as combining them
* @return string The path to the cache file which was written.
*/
protected static function combine($type, $file_group, $minify, $inline)
{
// Get the last modified time of all of the component files
$last_mod = 0;
foreach ($file_group as $file) {
// If it's a remote file just assume it isn't modified, otherwise
// we're stuck making a ton of HTTP requests
if (strpos($file['file'], '//') !== false) {
continue;
}
$mod = filemtime(static::$root_path . $file['file']);
if ($mod > $last_mod) {
$last_mod = $mod;
}
}
$filename = md5(implode('', array_map(function ($a) {
return $a['file'];
}, $file_group)) . ($minify ? 'min' : '') . $last_mod) . '.' . $type;
$rel_filepath = static::$cache_path . '/' . $filename;
$abs_filepath = static::$root_path . $rel_filepath;
$needs_update = !file_exists($abs_filepath);
if ($needs_update) {
$content = '';
foreach ($file_group as $file) {
if (static::$show_files_inline) {
$content .= PHP_EOL . '/* ' . $file['file'] . ' */' . PHP_EOL . PHP_EOL;
}
if ($file['minified'] || !$minify) {
$content .= static::load_file($file['file'], $type, $file_group, $rel_filepath) . PHP_EOL;
} else {
$file_content = static::load_file($file['file'], $type, $file_group, $rel_filepath);
if ($file_content === false) {
throw new Casset_Exception("Couldn't not open file {$file['file']}");
}
if ($type == 'js') {
$content .= Casset_JSMin::minify($file_content) . PHP_EOL;
} elseif ($type == 'css') {
$content .= Casset_Csscompressor::process($file_content) . PHP_EOL;
}
}
}
if ($type == 'css' && static::$move_imports_to_top) {
// Remove @import lines, and record them
$imports = array();
$content = preg_replace_callback('/@import.*?;/', function ($match) use(&$imports) {
$imports[] = $match[0];
return '';
}, $content);
if (count($imports)) {
$content = implode(PHP_EOL, $imports) . PHP_EOL . $content;
}
}
file_put_contents($abs_filepath, $content, LOCK_EX);
$mtime = time();
}
return $filename;
}
