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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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.
**
****************************************************************************/
#include "rmkeysoperation.h"
#include <iostream>
QString RmKeysOperation::name() const
{
return QLatin1String("rmKeys");
}
QString RmKeysOperation::helpText() const
{
return QLatin1String("remove settings from configuration");
}
QString RmKeysOperation::argumentsHelpText() const
{
return QLatin1String("A file (relative to top-level settings directory and without .xml extension)\n"
"followed by one or more keys to remove.\n");
}
bool RmKeysOperation::setArguments(const QStringList &args)
{
if (args.count() < 2)
return false;
m_keys = args;
m_file = m_keys.takeFirst();
if (m_file.isEmpty())
std::cerr << "No file given." << std::endl << std::endl;
if (m_keys.isEmpty())
std::cerr << "No keys given." << std::endl << std::endl;
return !m_file.isEmpty() && !m_keys.isEmpty();
}
int RmKeysOperation::execute() const
{
Q_ASSERT(!m_keys.isEmpty());
QVariantMap map = load(m_file);
QVariantMap result = rmKeys(map, m_keys);
if (map == result)
return 1;
// Write data again:
return save(result, m_file) ? 0 : 2;
}
#ifdef WITH_TESTS
bool RmKeysOperation::test() const
{
QVariantMap testMap;
QVariantMap subKeys;
QVariantMap cur;
cur.insert(QLatin1String("testint2"), 53);
subKeys.insert(QLatin1String("subsubkeys"), cur);
subKeys.insert(QLatin1String("testbool"), true);
testMap.insert(QLatin1String("subkeys"), subKeys);
subKeys.clear();
testMap.insert(QLatin1String("subkeys2"), subKeys);
testMap.insert(QLatin1String("testint"), 23);
QStringList data;
QVariantMap result = rmKeys(testMap, data);
if (result != testMap)
return false;
data.append(QLatin1String("testint"));
result = rmKeys(testMap, data);
if (result.count() != 2
|| !result.contains(QLatin1String("subkeys"))
|| !result.contains(QLatin1String("subkeys2")))
return false;
cur = result.value(QLatin1String("subkeys")).toMap();
if (cur.count() != 2
|| !cur.contains(QLatin1String("subsubkeys"))
|| !cur.contains(QLatin1String("testbool")))
return false;
cur = cur.value(QLatin1String("subsubkeys")).toMap();
if (cur.count() != 1
|| !cur.contains(QLatin1String("testint2")))
return false;
cur = result.value(QLatin1String("subkeys2")).toMap();
if (cur.count() != 0)
return false;
data.clear();
data.append(QLatin1String("subkeys/subsubkeys"));
result = rmKeys(testMap, data);
if (result.count() != 3
|| !result.contains(QLatin1String("subkeys"))
|| !result.contains(QLatin1String("subkeys2"))
|| !result.contains(QLatin1String("testint")))
return false;
cur = result.value(QLatin1String("subkeys")).toMap();
if (cur.count() != 1
|| !cur.contains(QLatin1String("testbool")))
return false;
cur = result.value(QLatin1String("subkeys2")).toMap();
if (cur.count() != 0)
return false;
data.clear();
data.append(QLatin1String("subkeys/testbool"));
result = rmKeys(testMap, data);
if (result.count() != 3
|| !result.contains(QLatin1String("subkeys"))
|| !result.contains(QLatin1String("subkeys2"))
|| !result.contains(QLatin1String("testint")))
return false;
cur = result.value(QLatin1String("subkeys")).toMap();
if (cur.count() != 1
|| !cur.contains(QLatin1String("subsubkeys")))
return false;
cur = cur.value(QLatin1String("subsubkeys")).toMap();
if (cur.count() != 1
|| !cur.contains(QLatin1String("testint2")))
return false;
cur = result.value(QLatin1String("subkeys2")).toMap();
if (cur.count() != 0)
return false;
cur = result.value(QLatin1String("subkeys2")).toMap();
if (cur.count() != 0)
return false;
return true;
}
#endif
QVariantMap RmKeysOperation::rmKeys(const QVariantMap &map, const QStringList &removals)
{
QVariantMap result = map;
foreach (const QString &r, removals) {
QList<QVariantMap> stack;
const QStringList keys = r.split(QLatin1Char('/'));
// Set up a stack of QVariantMaps along the path we take:
stack.append(result);
for (int i = 0; i < keys.count() - 1; ++i) {
QVariantMap subMap;
if (stack.last().contains(keys.at(i))) {
subMap = stack.last().value(keys.at(i)).toMap();
} else {
std::cerr << "Warning: Key " << qPrintable(r) << " not found." << std::endl;
continue;
}
stack.append(subMap);
}
// remove
Q_ASSERT(stack.count() == keys.count());
if (!stack.last().contains(keys.last())) {
std::cerr << "Warning: Key " << qPrintable(r) << " not found." << std::endl;
continue;
}
stack.last().remove(keys.last());
// Generate new resultset by folding maps back in:
QVariantMap foldBack = stack.takeLast();
for (int i = keys.count() - 2; i >= 0; --i) { // skip last key, that is already taken care of
const QString k = keys.at(i);
QVariantMap current = stack.takeLast();
current.insert(k, foldBack);
foldBack = current;
}
Q_ASSERT(stack.isEmpty());
Q_ASSERT(foldBack != map);
result = foldBack;
}
return result;
}
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