336 lines
12 KiB
C++
336 lines
12 KiB
C++
#include "package.h"
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#include "alpmdatabase.h"
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#include "utilities.h"
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#include "repository.h"
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#include <QJsonObject>
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#include <QJsonValue>
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#include <QJsonArray>
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#include <QVariant>
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using namespace std;
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using namespace ChronoUtilities;
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namespace PackageManagement {
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/*!
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* \class The Package class holds meta information about an
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* Arch Linux package.
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*/
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/*!
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* \brief Constructs a new package instance.
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*
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* Since it is intenced to use the Package class as base class only,
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* this constructor is protected.
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*/
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Package::Package(const QString &name, Repository *source) :
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m_origin(PackageOrigin::Unknown),
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m_source(source),
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m_hasGeneralInfo(false),
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m_name(name),
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m_hasInstallScript(false),
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m_hasBuildRelatedMetaData(false),
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m_hasInstallRelatedMetaData(false),
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m_validationMethods(ALPM_PKG_VALIDATION_UNKNOWN),
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m_installReason(ALPM_PKG_REASON_EXPLICIT),
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m_id(-1),
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m_categoryId(-1),
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m_votes(-1)
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{
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// initialization must be done in derived class
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}
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Package::~Package()
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{}
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bool Package::matches(const QString &name, const QString &version, const Dependency &dependency)
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{
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if(name == dependency.name) {
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PackageVersionComparsion cmp;
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switch(dependency.mode) {
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case ALPM_DEP_MOD_ANY:
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return true;
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case ALPM_DEP_MOD_EQ:
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return version == dependency.version;
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case ALPM_DEP_MOD_GE:
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return (cmp = PackageVersion(version).compare(PackageVersion(dependency.version))) == PackageVersionComparsion::Equal || cmp == PackageVersionComparsion::NewerThenSyncVersion;
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case ALPM_DEP_MOD_LE:
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return (cmp = PackageVersion(version).compare(PackageVersion(dependency.version))) == PackageVersionComparsion::Equal || cmp == PackageVersionComparsion::PackageUpgradeOnly || cmp == PackageVersionComparsion::SoftwareUpgrade;
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case ALPM_DEP_MOD_GT:
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return PackageVersion(version).compare(PackageVersion(dependency.version)) == PackageVersionComparsion::NewerThenSyncVersion;
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case ALPM_DEP_MOD_LT:
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return (cmp = PackageVersion(version).compare(PackageVersion(dependency.version))) == PackageVersionComparsion::PackageUpgradeOnly || cmp == PackageVersionComparsion::SoftwareUpgrade;
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default:
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;
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}
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}
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return false;
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}
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/*!
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* \cond
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*/
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namespace Utilities {
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inline void put(QJsonObject &obj, const QString &key, const QJsonValue &value)
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{
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if(!value.isNull()) {
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obj.insert(key, value);
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}
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}
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inline void put(QJsonObject &obj, const QString &key, const DateTime dateTime)
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{
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if(!dateTime.isNull()) {
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put(obj, key, QString::fromLocal8Bit(dateTime.toString().data()));
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}
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}
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inline void put(QJsonObject &obj, const QString &key, const QStringList &values)
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{
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if(!values.isEmpty()) {
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put(obj, key, QJsonArray::fromStringList(values));
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}
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}
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void put(QJsonObject &obj, const QString &key, const QList<Dependency> &dependencies)
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{
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if(!dependencies.isEmpty()) {
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QJsonArray jsonArray;
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for(const auto &dep : dependencies) {
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QJsonObject depObj;
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depObj.insert(QStringLiteral("name"), dep.name);
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depObj.insert(QStringLiteral("ver"), dep.version);
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switch(dep.mode) {
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case ALPM_DEP_MOD_ANY:
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depObj.insert(QStringLiteral("mod"), QStringLiteral("any"));
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break;
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case ALPM_DEP_MOD_EQ:
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depObj.insert(QStringLiteral("mod"), QStringLiteral("eq"));
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break;
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case ALPM_DEP_MOD_GE:
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depObj.insert(QStringLiteral("mod"), QStringLiteral("ge"));
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break;
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case ALPM_DEP_MOD_LE:
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depObj.insert(QStringLiteral("mod"), QStringLiteral("le"));
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break;
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case ALPM_DEP_MOD_GT:
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depObj.insert(QStringLiteral("mod"), QStringLiteral("gt"));
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break;
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case ALPM_DEP_MOD_LT:
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depObj.insert(QStringLiteral("mod"), QStringLiteral("lt"));
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break;
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}
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jsonArray << depObj;
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}
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put(obj, key, jsonArray);
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}
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}
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}
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/*!
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* \endcond
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*/
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using namespace Utilities;
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/*!
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* \brief Returns basic information about the packages as JSON object.
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*/
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QJsonObject Package::basicInfo(bool includeRepoAndName) const
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{
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QJsonObject info;
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if(includeRepoAndName) {
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if(source()) {
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put(info, QStringLiteral("repo"), source()->name());
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}
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put(info, QStringLiteral("name"), name());
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}
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put(info, QStringLiteral("archs"), architectures());
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put(info, QStringLiteral("arch"), buildArchitecture());
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put(info, QStringLiteral("ver"), version());
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put(info, QStringLiteral("desc"), description());
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put(info, QStringLiteral("bdate"), buildDate());
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put(info, QStringLiteral("flagdate"), outOfDate());
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return info;
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}
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/*!
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* \brief Returns full information about the package as JSON object.
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*/
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QJsonObject Package::fullInfo(bool includeRepoAndName) const
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{
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QJsonObject info;
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if(includeRepoAndName) {
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if(source()) {
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put(info, QStringLiteral("repo"), source()->name());
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}
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put(info, QStringLiteral("name"), name());
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}
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put(info, QStringLiteral("archs"), architectures());
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put(info, QStringLiteral("arch"), buildArchitecture());
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put(info, QStringLiteral("ver"), version());
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put(info, QStringLiteral("desc"), description());
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put(info, QStringLiteral("bdate"), buildDate());
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put(info, QStringLiteral("bdate"), buildDate());
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put(info, QStringLiteral("flagdate"), outOfDate());
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put(info, QStringLiteral("idate"), installDate());
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put(info, QStringLiteral("isize"), QJsonValue(static_cast<long long int>(installedSize())));
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put(info, QStringLiteral("url"), upstreamUrl());
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put(info, QStringLiteral("lic"), licenses());
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put(info, QStringLiteral("grp"), groups());
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put(info, QStringLiteral("prov"), provides());
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put(info, QStringLiteral("optd"), optionalDependencies());
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put(info, QStringLiteral("deps"), dependencies());
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put(info, QStringLiteral("requ"), requiredBy());
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put(info, QStringLiteral("optf"), optionalFor());
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put(info, QStringLiteral("conf"), conflicts());
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put(info, QStringLiteral("repl"), replaces());
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put(info, QStringLiteral("pack"), packer());
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put(info, QStringLiteral("expl"), QJsonValue(installReason() == ALPM_PKG_REASON_EXPLICIT));
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put(info, QStringLiteral("scri"), QJsonValue(hasInstallScript()));
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put(info, QStringLiteral("sig"), Utilities::validationMethodsStrings(validationMethods()));
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put(info, QStringLiteral("file"), fileName());
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put(info, QStringLiteral("files"), files());
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return info;
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}
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/*!
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* \brief The PackageVersion class helps parsing package versions.
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*/
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/*!
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* \brief Constructs a new PackageVersion instance from the specified \a versionStr.
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*/
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PackageVersion::PackageVersion(const QString &versionStr)
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{
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// determine start offsets of version and release
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const ushort *str = versionStr.utf16(), *versionBeg = nullptr, *releaseBeg = nullptr;
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for(const auto *i = str; ; ++i) {
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switch(*i) {
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case 0:
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goto terminationFound;
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case ':':
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if(!versionBeg && !releaseBeg) {
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versionBeg = i + 1;
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}
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break;
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case '-':
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releaseBeg = i + 1;
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break;
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default: ;
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}
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}
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terminationFound:
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if(versionBeg) {
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// epoch present
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epoch = QString::fromUtf16(str, versionBeg - str - 1);
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if(releaseBeg) {
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// release present
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version = QString::fromUtf16(versionBeg, releaseBeg - versionBeg - 1);
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release = QString::fromUtf16(releaseBeg);
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} else {
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version = QString::fromUtf16(versionBeg);
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}
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} else {
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// epoch not present
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if(releaseBeg) {
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// release present
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version = QString::fromUtf16(str, releaseBeg - str - 1);
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release = QString::fromUtf16(releaseBeg);
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} else {
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version = QString::fromUtf16(str);
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}
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}
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}
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/*!
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* \brief Compares two version parts.
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* \returns Returns 1 if part1 is newer then part2, -1 if part2 is newer then part1 and 0 if both parts are equal.
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*/
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PackageVersionPartComparsion PackageVersion::compareParts(const QString &part1, const QString &part2)
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{
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static const QRegExp nonAlphanumericPattern(QStringLiteral("[^a-zA-Z\\d:öäüÖÄÜß]"));
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int part1Pos = 0, part2Pos = 0, part1End, part2End;
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while(true) {
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// determine current segments
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part1End = part1.indexOf(nonAlphanumericPattern, part1Pos);
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part2End = part2.indexOf(nonAlphanumericPattern, part2Pos);
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auto segment1 = part1.midRef(part1Pos, part1End);
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auto segment2 = part2.midRef(part2Pos, part2End);
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// compare current segments
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int digit1 = segment1.size();
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int digit2 = segment2.size();
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const auto *i1 = segment1.cbegin(), *e1 = segment1.cend();
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const auto *i2 = segment2.cbegin(), *e2 = segment2.cend();
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// trim leading zeros
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for(; i1 < e1 && *i1 == QLatin1Char('0'); ++i1, --digit1);
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for(; i2 < e2 && *i2 == QLatin1Char('0'); ++i2, --digit2);
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if(digit1 > digit2) {
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// segment 1 has more digits -> newer
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return PackageVersionPartComparsion::Newer;
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} else if (digit2 > digit1) {
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// segment 2 has more digits -> newer
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return PackageVersionPartComparsion::Older;
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} else {
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for(; i1 < e1 && i2 < e2; ++i1, ++i2) {
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if(*i1 > *i2) {
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// segment 1 digit has higher value -> newer
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return PackageVersionPartComparsion::Newer;
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} else if(*i2 > *i1) {
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// segment 2 digit has higher value -> newer
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return PackageVersionPartComparsion::Older;
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}
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}
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}
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// this segment is equal, look for the next segment
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if(part1End >= 0 && part2End >= 0) {
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// there is another segment in both parts
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part1Pos = part1End + 1;
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part2Pos = part2End + 1;
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} else if(part1End >= 0) {
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// only part 1 has another segment -> it is more specific and hence considered newer
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return PackageVersionPartComparsion::Newer;
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} else if(part2End >= 0) {
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// only part 2 has another segment -> it is more specific and hence considered newer
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return PackageVersionPartComparsion::Older;
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} else {
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// none of the parts has another segment -> parts are equal
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return PackageVersionPartComparsion::Equal;
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}
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}
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}
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/*!
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* \brief Compares this version with another version.
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*
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* This method distinguishes between software upgrades and package releases. See Alpm::PackageVersionComparsion enum.
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*/
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PackageVersionComparsion PackageVersion::compare(const PackageVersion &other) const
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{
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if(!epoch.isEmpty() || !other.epoch.isEmpty()) {
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switch(compareParts(other.epoch, epoch)) {
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case PackageVersionPartComparsion::Newer: return PackageVersionComparsion::SoftwareUpgrade;
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case PackageVersionPartComparsion::Older: return PackageVersionComparsion::NewerThenSyncVersion;
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case PackageVersionPartComparsion::Equal: ;
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}
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}
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switch(compareParts(other.version, version)) {
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case PackageVersionPartComparsion::Newer: return PackageVersionComparsion::SoftwareUpgrade;
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case PackageVersionPartComparsion::Older: return PackageVersionComparsion::NewerThenSyncVersion;
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case PackageVersionPartComparsion::Equal: ;
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}
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switch(compareParts(other.release, release)) {
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case PackageVersionPartComparsion::Newer: return PackageVersionComparsion::PackageUpgradeOnly;
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case PackageVersionPartComparsion::Older: return PackageVersionComparsion::NewerThenSyncVersion;
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case PackageVersionPartComparsion::Equal: ;
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}
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return PackageVersionComparsion::Equal;
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}
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}
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