/**
* Main controlling function for checking dependencies
* Dependency check is done in the following way:
* - installed extension in matching version ? - return true
* - available extension in matching version ? - mark for installation
* - remote (TER) extension in matching version? - mark for download
*
* @todo handle exceptions / markForUpload
* @param Dependency $dependency
* @throws Exception\MissingVersionDependencyException
* @return bool
*/
protected function checkExtensionDependency(Dependency $dependency)
{
$extensionKey = $dependency->getIdentifier();
$extensionIsLoaded = $this->isDependentExtensionLoaded($extensionKey);
if ($extensionIsLoaded === true) {
$isLoadedVersionCompatible = $this->isLoadedVersionCompatible($dependency);
if ($isLoadedVersionCompatible === true || $this->skipDependencyCheck) {
return true;
}
$extension = $this->listUtility->getExtension($extensionKey);
$loadedVersion = $extension->getPackageMetaData()->getVersion();
if (version_compare($loadedVersion, $dependency->getHighestVersion()) === -1) {
try {
$this->getExtensionFromRepository($extensionKey, $dependency);
} catch (Exception\UnresolvedDependencyException $e) {
throw new Exception\MissingVersionDependencyException('The extension ' . $extensionKey . ' is installed in version ' . $loadedVersion . ' but needed in version ' . $dependency->getLowestVersion() . ' - ' . $dependency->getHighestVersion() . ' and could not be fetched from TER', 1396302624);
}
} else {
throw new Exception\MissingVersionDependencyException('The extension ' . $extensionKey . ' is installed in version ' . $loadedVersion . ' but needed in version ' . $dependency->getLowestVersion() . ' - ' . $dependency->getHighestVersion(), 1430561927);
}
} else {
$extensionIsAvailable = $this->isDependentExtensionAvailable($extensionKey);
if ($extensionIsAvailable === true) {
$isAvailableVersionCompatible = $this->isAvailableVersionCompatible($dependency);
if ($isAvailableVersionCompatible) {
$unresolvedDependencyErrors = $this->dependencyErrors;
$this->managementService->markExtensionForInstallation($extensionKey);
$this->dependencyErrors = array_merge($unresolvedDependencyErrors, $this->dependencyErrors);
} else {
$extension = $this->listUtility->getExtension($extensionKey);
$availableVersion = $extension->getPackageMetaData()->getVersion();
if (version_compare($availableVersion, $dependency->getHighestVersion()) === -1) {
try {
$this->getExtensionFromRepository($extensionKey, $dependency);
} catch (Exception\MissingExtensionDependencyException $e) {
if (!$this->skipDependencyCheck) {
throw new Exception\MissingVersionDependencyException('The extension ' . $extensionKey . ' is available in version ' . $availableVersion . ' but is needed in version ' . $dependency->getLowestVersion() . ' - ' . $dependency->getHighestVersion() . ' and could not be fetched from TER', 1430560390);
}
}
} else {
if (!$this->skipDependencyCheck) {
throw new Exception\MissingVersionDependencyException('The extension ' . $extensionKey . ' is available in version ' . $availableVersion . ' but is needed in version ' . $dependency->getLowestVersion() . ' - ' . $dependency->getHighestVersion(), 1430562374);
}
// Dependency check is skipped and the local version has to be installed
$this->managementService->markExtensionForInstallation($extensionKey);
}
}
} else {
$unresolvedDependencyErrors = $this->dependencyErrors;
$this->getExtensionFromRepository($extensionKey, $dependency);
$this->dependencyErrors = array_merge($unresolvedDependencyErrors, $this->dependencyErrors);
}
}
return false;
}