qt5base-lts/qmake/property.h
Oswald Buddenhagen 169a40d511 move generation of qconfig.cpp (and qt.conf) to qmake-based configure
this moves us another step towards the "outer" configure doing just
minimal bootstrapping of qmake.

a challenge here was that so far, qmake itself needed qconfig.cpp. this
was replaced by usage of a qt.conf file instead of compiled-in values.
however, to make the executable still self-contained, that qt.conf is
embedded into it (by simple appending of a fixed signature and the text
file).

the qmake with the embedded qt.conf is not used for the qt build itself,
which instead relies on the qt.conf in bin/ as before. however, due to
the missing built-in values, this file now needs to contain more
information than before. but except for a minimal version that is needed
to start up qmake/configure at all, that file is now also generated with
qmake. as some of the newly set up properties are subsequently used by
configure itself, qmake gains a (deliberately undocumented) function to
reload the qt.conf after it's fully populated.

unlike the old implementations, this one doesn't emit redundant qt.conf
entries which match the hard-coded fallbacks. omitting them leads to
leaner files which are more comprehensible.

Started-by: Paolo Angelelli <paolo.angelelli@qt.io>
Change-Id: I4526ef64b3c89d9851e10f83965fe479ed7f39f6
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
2016-12-13 18:56:12 +00:00

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the qmake application 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
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**
** 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
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** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef PROPERTY_H
#define PROPERTY_H
#include "library/proitems.h"
#include <qglobal.h>
#include <qstring.h>
#include <qhash.h>
QT_BEGIN_NAMESPACE
class QSettings;
class QMakeProperty
{
QSettings *settings;
void initSettings();
QHash<ProKey, ProString> m_values;
public:
QMakeProperty();
~QMakeProperty();
void reload();
bool hasValue(const ProKey &);
ProString value(const ProKey &);
void setValue(QString, const QString &);
void remove(const QString &);
bool exec();
};
QT_END_NAMESPACE
#endif // PROPERTY_H