/** * 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; }
/** * Create an empty constraint instance and set pretty string. * * @param string $prettyString The pretty string for the constraint. * * @return EmptyConstraint|\Composer\Package\LinkConstraint\EmptyConstraint * @see https://github.com/contao-community-alliance/composer-plugin/issues/44 * @see https://github.com/composer/semver/issues/17 */ private function createEmptyConstraint($prettyString) { if (!class_exists('Composer\\Semver\\Constraint\\EmptyConstraint')) { $constraint = new \Composer\Package\LinkConstraint\EmptyConstraint(); } else { $constraint = new EmptyConstraint(); } $constraint->setPrettyString($prettyString); return $constraint; }