public function canAcquireLeaseOnResource(DrydockBlueprint $blueprint, DrydockResource $resource, DrydockLease $lease)
{
// Don't hand out leases on working copies which have not activated, since
// it may take an arbitrarily long time for them to acquire a host.
if (!$resource->isActive()) {
return false;
}
$need_map = $lease->getAttribute('repositories.map');
if (!is_array($need_map)) {
return false;
}
$have_map = $resource->getAttribute('repositories.map');
if (!is_array($have_map)) {
return false;
}
$have_as = ipull($have_map, 'phid');
$need_as = ipull($need_map, 'phid');
foreach ($need_as as $need_directory => $need_phid) {
if (empty($have_as[$need_directory])) {
// This resource is missing a required working copy.
return false;
}
if ($have_as[$need_directory] != $need_phid) {
// This resource has a required working copy, but it contains
// the wrong repository.
return false;
}
unset($have_as[$need_directory]);
}
if ($have_as && $lease->getAttribute('repositories.strict')) {
// This resource has extra repositories, but the lease is strict about
// which repositories are allowed to exist.
return false;
}
if (!DrydockSlotLock::isLockFree($this->getLeaseSlotLock($resource))) {
return false;
}
return true;
}