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<?php
/**
* When deploying on systems that lack mixin support, fake it.
*
* @mixinFile polyfill.php
*
* This polyfill does some (persnickity) deduplication, but it doesn't allow upgrades or shipping replacements in core.
*
* Note: The polyfill.php is designed to be copied into extensions for interoperability. Consequently, this file is
* not used 'live' by `civicrm-core`. However, the file does need a canonical home, and it's convenient to keep it
* adjacent to the actual mixin files.
*
* @param string $longName
* @param string $shortName
* @param string $basePath
*/
return function ($longName, $shortName, $basePath) {
// Construct imitations of the mixin services. These cannot work as well (e.g. with respect to
// number of file-reads, deduping, upgrading)... but they should be OK for a few months while
// the mixin services become available.
// List of active mixins; deduped by version
$mixinVers = [];
foreach ((array) glob($basePath . '/mixin/*.mixin.php') as $f) {
[$name, $ver] = explode('@', substr(basename($f), 0, -10));
if (!isset($mixinVers[$name]) || version_compare($ver, $mixinVers[$name], '>')) {
$mixinVers[$name] = $ver;
}
}
$mixins = [];
foreach ($mixinVers as $name => $ver) {
$mixins[] = "$name@$ver";
}
// Imitate CRM_Extension_MixInfo.
$mixInfo = new class() {
/**
* @var string
*/
public $longName;
/**
* @var string
*/
public $shortName;
public $_basePath;
public function getPath($file = NULL) {
return $this->_basePath . ($file === NULL ? '' : (DIRECTORY_SEPARATOR . $file));
}
public function isActive() {
return \CRM_Extension_System::singleton()->getMapper()->isActiveModule($this->shortName);
}
};
$mixInfo->longName = $longName;
$mixInfo->shortName = $shortName;
$mixInfo->_basePath = $basePath;
// Imitate CRM_Extension_BootCache.
$bootCache = new class() {
public function define($name, $callback) {
$envId = \CRM_Core_Config_Runtime::getId();
$oldExtCachePath = \Civi::paths()->getPath("[civicrm.compile]/CachedExtLoader.{$envId}.php");
$stat = stat($oldExtCachePath);
$file = Civi::paths()->getPath('[civicrm.compile]/CachedMixin.' . md5($name . ($stat['mtime'] ?? 0)) . '.php');
if (file_exists($file)) {
return include $file;
}
else {
$data = $callback();
file_put_contents($file, '<' . "?php\nreturn " . var_export($data, TRUE) . ';');
return $data;
}
}
};
// Imitate CRM_Extension_MixinLoader::run()
// Parse all live mixins before trying to scan any classes.
global $_CIVIX_MIXIN_POLYFILL;
foreach ($mixins as $mixin) {
// If the exact same mixin is defined by multiple exts, just use the first one.
if (!isset($_CIVIX_MIXIN_POLYFILL[$mixin])) {
$_CIVIX_MIXIN_POLYFILL[$mixin] = include_once $basePath . '/mixin/' . $mixin . '.mixin.php';
}
}
foreach ($mixins as $mixin) {
// If there's trickery about installs/uninstalls/resets, then we may need to register a second time.
if (!isset(\Civi::$statics[$longName][$mixin])) {
\Civi::$statics[$longName][$mixin] = 1;
$func = $_CIVIX_MIXIN_POLYFILL[$mixin];
$func($mixInfo, $bootCache);
}
}
};