Fully transparent and generic cache for config and app database

The existing caching mechanism for config files was abstracted and extended, so
that it could be re-used to parse and cache the info.yaml files. This results
in a much more robust application database and should get rid of 99.9% of all
the -r/--recreate-database option usages.

Change-Id: Ic37fcd3b0e55d481712d469b6e331b9c433a9c5d
Reviewed-by: Dominik Holland <dominik.holland@qt.io>

1 files changed, 171 insertions, 0 deletions

diff --git a/src/main-lib/configuration_p.h b/src/main-lib/configuration_p.h
new file mode 100644
index 00000000..e97f9f2f
--- /dev/null
+++ b/src/main-lib/configuration_p.h
@@ -0,0 +1,171 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Copyright (C) 2019 Luxoft Sweden AB
+** Copyright (C) 2018 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Application Manager.
+**
+** $QT_BEGIN_LICENSE:LGPL-QTAS$
+** Commercial License Usage
+** Licensees holding valid commercial Qt Automotive Suite licenses may use
+** this file in accordance with the commercial license agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and The Qt Company.  For
+** licensing terms and conditions see https://www.qt.io/terms-conditions.
+** For further information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: LGPL-3.0
+**
+****************************************************************************/
+
+#pragma once
+
+#include <QtAppManCommon/global.h>
+#include <QStringList>
+#include <QVariantMap>
+#include <QVector>
+#include <QSet>
+
+QT_FORWARD_DECLARE_CLASS(QIODevice)
+
+QT_BEGIN_NAMESPACE_AM
+
+
+// IMPORTANT: if you add/remove/change anything in this struct, you also have to adjust the
+//            loadFromCache(), saveToCache() and mergeFrom() functions in the cpp file!
+
+struct ConfigurationData
+{
+    static ConfigurationData *loadFromSource(QIODevice *source, const QString &fileName);
+    static QByteArray substituteVars(const QByteArray &sourceContent, const QString &fileName,
+                                     QStringList *deploymentWarnings = nullptr);
+    static ConfigurationData *loadFromCache(QDataStream &ds);
+    void saveToCache(QDataStream &ds) const;
+    void mergeFrom(const ConfigurationData *from);
+
+
+    struct Runtimes {
+        QVariantMap configurations;
+    } runtimes;
+
+    struct {
+        QVariantMap configurations;
+        QList<QPair<QString, QString>> selection;
+    } containers;
+
+    struct {
+        bool disable = false;
+        struct {
+            int disambiguation = 10000;
+            int startApplication = 3000;
+            int replyFromApplication = 5000;
+            int replyFromSystem = 20000;
+        } timeouts;
+    } intents;
+
+    struct {
+        QStringList startup;
+        QStringList container;
+    } plugins;
+
+    struct {
+        struct {
+            QString id;
+            QString description;
+        } dlt;
+        QStringList rules;
+        QString messagePattern;
+        QVariant useAMConsoleLogger; // true / false / invalid
+    } logging;
+
+    struct {
+        bool disable = false;
+        QStringList caCertificates;
+        struct {
+            int minUserId = -1;
+            int maxUserId = -1;
+            int commonGroupId = -1;
+        } applicationUserIdSeparation;
+    } installer;
+
+    struct {
+        QVariantMap policies;
+        QVariantMap registrations;
+    } dbus;
+
+    struct {
+        double idleLoad = 0.;
+        int runtimesPerContainer = 0;
+    } quicklaunch;
+
+    struct {
+        QVariantMap opengl;
+        bool enableTouchEmulation = false;
+        QStringList iconThemeSearchPaths;
+        QString iconThemeName;
+        QString style;
+        bool loadDummyData = false;
+        QStringList importPaths;
+        QStringList pluginPaths;
+        QString windowIcon;
+        bool fullscreen = false;
+        QString mainQml;
+        QStringList resources;
+    } ui;
+
+    struct {
+        QStringList builtinAppsManifestDir;
+        QString installationDir;
+        QString documentDir;
+    } applications; // TODO: rename to package?
+
+    QVariantList installationLocations;
+
+    QVariantMap crashAction;
+    QVariantMap systemProperties;
+
+    struct {
+        bool forceSingleProcess = false;
+        bool forceMultiProcess = false;
+        bool noSecurity = false;
+        bool developmentMode = false;
+        bool noUiWatchdog = false;
+    } flags;
+
+    // command-line only:
+    struct {
+        QString waylandSocketName;
+        bool noFullscreen = false;
+        bool verbose = false;
+        bool slowAnimations = false;
+        bool noDltLogging = false;
+        bool singlePackage = false;
+        bool qmlDebug = false;
+        bool touchEmulation = false;
+    } commandLine;
+};
+
+QT_END_NAMESPACE_AM