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+ Minify/Build.php and example 2 showing use

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Steve Clay
2008-03-27 18:51:55 +00:00
parent cd0675f490
commit a714255c69
8 changed files with 237 additions and 146 deletions
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143
lib/HTTP/ConditionalGet/Build.php
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@@ -1,143 +0,0 @@
<?php
/**
* Class HTTP_ConditionalGet_Build
* @package Minify
* @subpackage HTTP
*/
/**
* Maintain a single last modification time for 1 or more directories of files
*
* Since scanning many files may be slower, the value is cached for a given
* number of seconds.
*
* @package Minify
* @subpackage HTTP
* @author Stephen Clay <steve@mrclay.org>
*/
class HTTP_ConditionalGet_Build {
/**
* Last modification time of all files in the build
*
* @var int
*/
public $lastModified = 0;
/**
* String to use as ampersand in uri(). Set this to '&' if
* you are not HTML-escaping URIs.
*
* @var string
*/
public static $ampersand = '&amp;';
/**
* Get a time-stamped URI
*
* <code>
* echo 'src="' . $b->uri('/site.js') . '"';
* // outputs src="/site.js?1678242"
*
* echo 'src="' . $b->uri('/scriptaculous.js?load=effects') . '"';
* // outputs src="/scriptaculous.js?load=effects&amp1678242"
* </code>
*
* @param string $uri
* @return string
*/
public function uri($uri) {
$sep = strpos($uri, '?') === false
? '?'
: self::$ampersand;
return "{$uri}{$sep}{$this->lastModified}";
}
/**
* Create a build object
*
* @param array $options
*
* 'id': (required) unique string for this build.
*
* 'savePath': PHP-writeable directory to store build info. If not
* specified, sys_get_temp_dir() will be used.
*
* 'scanPaths': (required) array of directory paths to scan. A single path
* string is also accepted.
*
* 'scanDeep': should we scan descendant directories? (default true)
*
* 'scanPattern': filenames must match this (default matches css & js
* files not starting with ".")
*
* 'delay': seconds to wait before scanning again (default 300)
*
* @return int last modified timestamp
*/
public function __construct($options)
{
$savePath = isset($options['savePath'])
? $options['savePath']
: sys_get_temp_dir();
$file = $savePath . DIRECTORY_SEPARATOR
. 'HTTP_ConditionalGet_Build_'
. md5($options['id'])
. '.txt';
// check build file
$loaded = file_get_contents($file);
if ($loaded) {
list($this->lastModified, $nextCheck) = explode('|', $loaded);
} else {
$nextCheck = 0;
}
if ($nextCheck > $_SERVER['REQUEST_TIME']) {
// done here
return;
}
// scan last modified times
$options['scanPattern'] = isset($options['scanPattern'])
? $options['scanPattern']
: '/^[^\\.].*\\.(?:css|js)$/';
$options['scanDeep'] = isset($options['scanDeep'])
? $options['scanDeep']
: true;
$max = 0;
foreach ((array)$options['scanPaths'] as $path) {
$max = max($max, self::_scan($max, $path, $options));
}
$this->lastModified = $max;
$nextCheck = $_SERVER['REQUEST_TIME']
+ (isset($options['delay'])
? (int)$options['delay']
: 300);
// save build file
file_put_contents($file, "{$this->lastModified}|{$nextCheck}");
}
protected static function _scan($max, $path, $options)
{
$d = dir($path);
while (false !== ($entry = $d->read())) {
if ('.' === $entry[0]) {
continue;
}
$fullPath = $path . DIRECTORY_SEPARATOR . $entry;
if (is_dir($entry)) {
if ($options['scanDeep']) {
$max = max($max, self::_scan($max, $fullPath, $options));
}
} else {
if (preg_match($options['scanPattern'], $entry)) {
$max = max($max, filemtime($fullPath));
}
}
}
$d->close();
return $max;
}
}