protected function enableReplaces(PackageInterface $package)
{
// we may "replace" any of the packages (e.g. ext-mbstring is bundled with PHP) that have been required
// figure out which those are so we can decide if they need enabling (because they're built shared)
$enable = array_intersect_key($package->getReplaces(), $this->allPlatformRequirements);
foreach (array_keys($enable) as $extension) {
$this->enableExtension($extension, $package);
}
}
/**
* Checks if the package matches the given constraint directly or through
* provided or replaced packages
*
* @param array|PackageInterface $candidate
* @param string $name Name of the package to be matched
* @param ConstraintInterface $constraint The constraint to verify
* @return int One of the MATCH* constants of this class or 0 if there is no match
*/
private function match($candidate, $name, ConstraintInterface $constraint = null)
{
$candidateName = $candidate->getName();
$candidateVersion = $candidate->getVersion();
$isDev = $candidate->getStability() === 'dev';
$isAlias = $candidate instanceof AliasPackage;
if (!$isDev && !$isAlias && isset($this->filterRequires[$name])) {
$requireFilter = $this->filterRequires[$name];
} else {
$requireFilter = new EmptyConstraint();
}
if ($candidateName === $name) {
$pkgConstraint = new Constraint('==', $candidateVersion);
if ($constraint === null || $constraint->matches($pkgConstraint)) {
return $requireFilter->matches($pkgConstraint) ? self::MATCH : self::MATCH_FILTERED;
}
return self::MATCH_NAME;
}
$provides = $candidate->getProvides();
$replaces = $candidate->getReplaces();
// aliases create multiple replaces/provides for one target so they can not use the shortcut below
if (isset($replaces[0]) || isset($provides[0])) {
foreach ($provides as $link) {
if ($link->getTarget() === $name && ($constraint === null || $constraint->matches($link->getConstraint()))) {
return $requireFilter->matches($link->getConstraint()) ? self::MATCH_PROVIDE : self::MATCH_FILTERED;
}
}
foreach ($replaces as $link) {
if ($link->getTarget() === $name && ($constraint === null || $constraint->matches($link->getConstraint()))) {
return $requireFilter->matches($link->getConstraint()) ? self::MATCH_REPLACE : self::MATCH_FILTERED;
}
}
return self::MATCH_NONE;
}
if (isset($provides[$name]) && ($constraint === null || $constraint->matches($provides[$name]->getConstraint()))) {
return $requireFilter->matches($provides[$name]->getConstraint()) ? self::MATCH_PROVIDE : self::MATCH_FILTERED;
}
if (isset($replaces[$name]) && ($constraint === null || $constraint->matches($replaces[$name]->getConstraint()))) {
return $requireFilter->matches($replaces[$name]->getConstraint()) ? self::MATCH_REPLACE : self::MATCH_FILTERED;
}
return self::MATCH_NONE;
}
/**
* Checks if source replaces a package with the same name as target.
*
* Replace constraints are ignored. This method should only be used for
* prioritisation, not for actual constraint verification.
*
* @param PackageInterface $source
* @param PackageInterface $target
* @return bool
*/
protected function replaces(PackageInterface $source, PackageInterface $target)
{
foreach ($source->getReplaces() as $link) {
if ($link->getTarget() === $target->getName()) {
return true;
}
}
return false;
}
/**
* {@inheritdoc}
*/
public function getReplaces()
{
return $this->package->getReplaces();
}
/**
* Returns the installation path of a package
*
* @param PackageInterface $package
* @return string path
*/
public function getInstallPath(PackageInterface $package)
{
$extensionKey = '';
foreach ($package->getReplaces() as $packageName => $version) {
if (strpos($packageName, '/') === FALSE) {
$extensionKey = trim($packageName);
break;
}
}
if (empty($extensionKey)) {
list(, $extensionKey) = explode('/', $package->getName(), 2);
$extensionKey = str_replace('-', '_', $extensionKey);
}
return $this->extensionDir . DIRECTORY_SEPARATOR . $extensionKey;
}
