Add support for compiling QML/JS files ahead of time in resources

This is bringing over the loading infrastructure from the Qt Quick
Compiler that allows embedding qml/js files in resources and compiling
them ahead of time.

At the moment, the approach of generating one cpp file per qml/js file
and the loader stub is needed because the build system does not support
dynamic resource generation. In addition, as per QTBUG-60961, we must
ensure that the generated data structures are aligned.

To retain compatibility this is enabled via CONFIG += qtquickcompiler,
but we may need to find a new name (but should keep the old one in any
case).

Task-number: QTBUG-60961
Change-Id: Ia9839bf98d3af4c50636b6e06815364a9fc7ee57
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 51 insertions, 0 deletions

diff --git a/tools/qmlcachegen/resourcefilemapper.h b/tools/qmlcachegen/resourcefilemapper.h
new file mode 100644
index 0000000000..f6e82bacb0
--- /dev/null
+++ b/tools/qmlcachegen/resourcefilemapper.h
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt 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 General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** 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-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef RESOURCEFILEMAPPER_H
+#define RESOURCEFILEMAPPER_H
+
+#include <QStringList>
+#include <QHash>
+#include <QFile>
+
+struct ResourceFileMapper
+{
+    ResourceFileMapper(const QStringList &resourceFiles);
+    ResourceFileMapper(const QString &resourceFile);
+
+    bool isEmpty() const;
+
+    QStringList resourcePaths(const QString &fileName);
+    QStringList qmlCompilerFiles() const;
+
+private:
+    void populateFromQrcFile(QFile &file);
+
+    QHash<QString, QString> qrcPathToFileSystemPath;
+};
+
+#endif // RESOURCEFILEMAPPER_H