Add support for component aliases

Introduce concept of component aliases, which act as an alternative way
for referring a set of related components.

Component aliases are declared in an alias definition file, which is
included to the created installer's binary layout as a resource. The
file lists the available aliases, including metadata - such as name,
version, and description - and the list of components and other aliases
the alias requires.

Aliases can be referred only from the CLI for the time being, with the
supported commands 'install' and 'search'.

Task-number: QTIFW-2978
Change-Id: I281f171cc7d932ce496051d7090ae169a4709eec
Reviewed-by: Katja Marttila <katja.marttila@qt.io>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/libs/installer/packagemanagercore_p.h b/src/libs/installer/packagemanagercore_p.h
index 986776479..22b3ca9f3 100644
--- a/src/libs/installer/packagemanagercore_p.h
+++ b/src/libs/installer/packagemanagercore_p.h
@@ -54,8 +54,11 @@ using namespace KDUpdater;
 namespace QInstaller {
 
 struct BinaryLayout;
+struct AliasSource;
+class AliasFinder;
 class ScriptEngine;
 class ComponentModel;
+class ComponentAlias;
 class InstallerCalculator;
 class UninstallerCalculator;
 class RemoteFileEngineHandler;
@@ -106,6 +109,7 @@ public:
     QString configurationFileName() const;
 
     bool buildComponentTree(QHash<QString, Component*> &components, bool loadScript);
+    bool buildComponentAliases();
 
     template <typename T>
     bool loadComponentScripts(const T &components, const bool postScript = false);
@@ -185,8 +189,10 @@ signals:
 
 public:
     UpdateFinder *m_updateFinder;
+    AliasFinder *m_aliasFinder;
     QSet<PackageSource> m_packageSources;
     QSet<PackageSource> m_compressedPackageSources;
+    QSet<AliasSource> m_aliasSources;
     std::shared_ptr<LocalPackageHub> m_localPackageHub;
     QStringList m_filesForDelayedDeletion;
 
@@ -214,6 +220,8 @@ public:
     QList<QInstaller::Component*> m_updaterComponentsDeps;
     QList<QInstaller::Component*> m_updaterDependencyReplacements;
 
+    QHash<QString, QInstaller::ComponentAlias *> m_componentAliases;
+
     OperationList m_ownedOperations;
     OperationList m_performedOperationsOld;
     OperationList m_performedOperationsCurrentSession;
@@ -258,6 +266,8 @@ private:
 
     PackagesList remotePackages();
     LocalPackagesMap localInstalledPackages();
+    QList<ComponentAlias *> componentAliases();
+
     bool fetchMetaInformationFromRepositories(DownloadType type = DownloadType::All);
     bool addUpdateResourcesFromRepositories(bool compressedRepository = false);
     void processFilesForDelayedDeletion();
@@ -281,6 +291,7 @@ private:
     TempPathDeleter m_tmpPathDeleter;
 
     bool m_updates;
+    bool m_aliases;
     bool m_repoFetched;
     bool m_updateSourcesAdded;
     qint64 m_magicBinaryMarker;