protected function loadTargets($targets, $bundles)
{
// build the dependency order of bundles
$registered = [];
foreach ($bundles as $name => $bundle) {
$this->registerBundle($bundles, $name, $registered);
}
$bundleOrders = array_combine(array_keys($registered), range(0, count($bundles) - 1));
// fill up the target which has empty 'depends'.
$referenced = [];
foreach ($targets as $name => $target) {
if (empty($target['depends'])) {
if (!isset($all)) {
$all = $name;
} else {
throw new Exception("Only one target can have empty 'depends' option. Found two now: {$all}, {$name}");
}
} else {
foreach ($target['depends'] as $bundle) {
if (!isset($referenced[$bundle])) {
$referenced[$bundle] = $name;
} else {
throw new Exception("Target '{$referenced[$bundle]}' and '{$name}' cannot contain the bundle '{$bundle}' at the same time.");
}
}
}
}
if (isset($all)) {
$targets[$all]['depends'] = array_diff(array_keys($registered), array_keys($referenced));
}
// adjust the 'depends' order for each target according to the dependency order of bundles
// create an AssetBundle object for each target
foreach ($targets as $name => $target) {
if (!isset($target['basePath'])) {
throw new Exception("Please specify 'basePath' for the '{$name}' target.");
}
if (!isset($target['baseUrl'])) {
throw new Exception("Please specify 'baseUrl' for the '{$name}' target.");
}
usort($target['depends'], function ($a, $b) use($bundleOrders) {
if ($bundleOrders[$a] == $bundleOrders[$b]) {
return 0;
} else {
return $bundleOrders[$a] > $bundleOrders[$b] ? 1 : -1;
}
});
if (!isset($target['class'])) {
$target['class'] = $name;
}
$targets[$name] = Yii::createObject($target);
}
return $targets;
}