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<?php declare(strict_types=1);
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Repository;
use Composer\Package\BasePackage;
use Composer\Package\PackageInterface;
use Composer\Package\Version\VersionParser;
use Composer\Semver\Constraint\ConstraintInterface;
use Composer\Semver\Constraint\Constraint;
use Composer\Semver\Constraint\MatchAllConstraint;
use Composer\Package\RootPackageInterface;
use Composer\Package\Link;
/**
* Installed repository is a composite of all installed repo types.
*
* The main use case is tagging a repo as an "installed" repository, and offering a way to get providers/replacers easily.
*
* Installed repos are LockArrayRepository, InstalledRepositoryInterface, RootPackageRepository and PlatformRepository
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class InstalledRepository extends CompositeRepository
{
/**
* @param ConstraintInterface|string|null $constraint
*
* @return BasePackage[]
*/
public function findPackagesWithReplacersAndProviders(string $name, $constraint = null): array
{
$name = strtolower($name);
if (null !== $constraint && !$constraint instanceof ConstraintInterface) {
$versionParser = new VersionParser();
$constraint = $versionParser->parseConstraints($constraint);
}
$matches = [];
foreach ($this->getRepositories() as $repo) {
foreach ($repo->getPackages() as $candidate) {
if ($name === $candidate->getName()) {
if (null === $constraint || $constraint->matches(new Constraint('==', $candidate->getVersion()))) {
$matches[] = $candidate;
}
continue;
}
foreach (array_merge($candidate->getProvides(), $candidate->getReplaces()) as $link) {
if (
$name === $link->getTarget()
&& ($constraint === null || $constraint->matches($link->getConstraint()))
) {
$matches[] = $candidate;
continue 2;
}
}
}
}
return $matches;
}
/**
* Returns a list of links causing the requested needle packages to be installed, as an associative array with the
* dependent's name as key, and an array containing in order the PackageInterface and Link describing the relationship
* as values. If recursive lookup was requested a third value is returned containing an identically formed array up
* to the root package. That third value will be false in case a circular recursion was detected.
*
* @param string|string[] $needle The package name(s) to inspect.
* @param ConstraintInterface|null $constraint Optional constraint to filter by.
* @param bool $invert Whether to invert matches to discover reasons for the package *NOT* to be installed.
* @param bool $recurse Whether to recursively expand the requirement tree up to the root package.
* @param string[] $packagesFound Used internally when recurring
*
* @return array[] An associative array of arrays as described above.
* @phpstan-return array<array{0: PackageInterface, 1: Link, 2: mixed[]|bool}>
*/
public function getDependents($needle, ?ConstraintInterface $constraint = null, bool $invert = false, bool $recurse = true, ?array $packagesFound = null): array
{
$needles = array_map('strtolower', (array) $needle);
$results = [];
// initialize the array with the needles before any recursion occurs
if (null === $packagesFound) {
$packagesFound = $needles;
}
// locate root package for use below
$rootPackage = null;
foreach ($this->getPackages() as $package) {
if ($package instanceof RootPackageInterface) {
$rootPackage = $package;
break;
}
}
// Loop over all currently installed packages.
foreach ($this->getPackages() as $package) {
$links = $package->getRequires();
// each loop needs its own "tree" as we want to show the complete dependent set of every needle
// without warning all the time about finding circular deps
$packagesInTree = $packagesFound;
// Replacements are considered valid reasons for a package to be installed during forward resolution
if (!$invert) {
$links += $package->getReplaces();
// On forward search, check if any replaced package was required and add the replaced
// packages to the list of needles. Contrary to the cross-reference link check below,
// replaced packages are the target of links.
foreach ($package->getReplaces() as $link) {
foreach ($needles as $needle) {
if ($link->getSource() === $needle) {
if ($constraint === null || ($link->getConstraint()->matches($constraint) === true)) {
// already displayed this node's dependencies, cutting short
if (in_array($link->getTarget(), $packagesInTree)) {
$results[] = [$package, $link, false];
continue;
}
$packagesInTree[] = $link->getTarget();
$dependents = $recurse ? $this->getDependents($link->getTarget(), null, false, true, $packagesInTree) : [];
$results[] = [$package, $link, $dependents];
$needles[] = $link->getTarget();
}
}
}
}
}
// Require-dev is only relevant for the root package
if ($package instanceof RootPackageInterface) {
$links += $package->getDevRequires();
}
// Cross-reference all discovered links to the needles
foreach ($links as $link) {
foreach ($needles as $needle) {
if ($link->getTarget() === $needle) {
if ($constraint === null || ($link->getConstraint()->matches($constraint) === !$invert)) {
// already displayed this node's dependencies, cutting short
if (in_array($link->getSource(), $packagesInTree)) {
$results[] = [$package, $link, false];
continue;
}
$packagesInTree[] = $link->getSource();
$dependents = $recurse ? $this->getDependents($link->getSource(), null, false, true, $packagesInTree) : [];
$results[] = [$package, $link, $dependents];
}
}
}
}
// When inverting, we need to check for conflicts of the needles against installed packages
if ($invert && in_array($package->getName(), $needles)) {
foreach ($package->getConflicts() as $link) {
foreach ($this->findPackages($link->getTarget()) as $pkg) {
$version = new Constraint('=', $pkg->getVersion());
if ($link->getConstraint()->matches($version) === $invert) {
$results[] = [$package, $link, false];
}
}
}
}
// List conflicts against X as they may explain why the current version was selected, or explain why it is rejected if the conflict matched when inverting
foreach ($package->getConflicts() as $link) {
if (in_array($link->getTarget(), $needles)) {
foreach ($this->findPackages($link->getTarget()) as $pkg) {
$version = new Constraint('=', $pkg->getVersion());
if ($link->getConstraint()->matches($version) === $invert) {
$results[] = [$package, $link, false];
}
}
}
}
// When inverting, we need to check for conflicts of the needles' requirements against installed packages
if ($invert && $constraint && in_array($package->getName(), $needles) && $constraint->matches(new Constraint('=', $package->getVersion()))) {
foreach ($package->getRequires() as $link) {
if (PlatformRepository::isPlatformPackage($link->getTarget())) {
if ($this->findPackage($link->getTarget(), $link->getConstraint())) {
continue;
}
$platformPkg = $this->findPackage($link->getTarget(), '*');
$description = $platformPkg ? 'but '.$platformPkg->getPrettyVersion().' is installed' : 'but it is missing';
$results[] = [$package, new Link($package->getName(), $link->getTarget(), new MatchAllConstraint, Link::TYPE_REQUIRE, $link->getPrettyConstraint().' '.$description), false];
continue;
}
foreach ($this->getPackages() as $pkg) {
if (!in_array($link->getTarget(), $pkg->getNames())) {
continue;
}
$version = new Constraint('=', $pkg->getVersion());
if ($link->getTarget() !== $pkg->getName()) {
foreach (array_merge($pkg->getReplaces(), $pkg->getProvides()) as $prov) {
if ($link->getTarget() === $prov->getTarget()) {
$version = $prov->getConstraint();
break;
}
}
}
if (!$link->getConstraint()->matches($version)) {
// if we have a root package (we should but can not guarantee..) we show
// the root requires as well to perhaps allow to find an issue there
if ($rootPackage) {
foreach (array_merge($rootPackage->getRequires(), $rootPackage->getDevRequires()) as $rootReq) {
if (in_array($rootReq->getTarget(), $pkg->getNames()) && !$rootReq->getConstraint()->matches($link->getConstraint())) {
$results[] = [$package, $link, false];
$results[] = [$rootPackage, $rootReq, false];
continue 3;
}
}
$results[] = [$package, $link, false];
$results[] = [$rootPackage, new Link($rootPackage->getName(), $link->getTarget(), new MatchAllConstraint, Link::TYPE_DOES_NOT_REQUIRE, 'but ' . $pkg->getPrettyVersion() . ' is installed'), false];
} else {
// no root so let's just print whatever we found
$results[] = [$package, $link, false];
}
}
continue 2;
}
}
}
}
ksort($results);
return $results;
}
public function getRepoName(): string
{
return 'installed repo ('.implode(', ', array_map(static function ($repo): string {
return $repo->getRepoName();
}, $this->getRepositories())).')';
}
/**
* @inheritDoc
*/
public function addRepository(RepositoryInterface $repository): void
{
if (
$repository instanceof LockArrayRepository
|| $repository instanceof InstalledRepositoryInterface
|| $repository instanceof RootPackageRepository
|| $repository instanceof PlatformRepository
) {
parent::addRepository($repository);
return;
}
throw new \LogicException('An InstalledRepository can not contain a repository of type '.get_class($repository).' ('.$repository->getRepoName().')');
}
}