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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "rmkeysoperation.h"
#include <iostream>
#ifdef WITH_TESTS
#include <QTest>
#endif
#include <QLoggingCategory>
#include <QRegularExpression>
Q_LOGGING_CATEGORY(rmkeyslog, "qtc.sdktool.operations.rmkeys", QtWarningMsg)
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())
qCCritical(rmkeyslog) << "No file given.";
if (m_keys.isEmpty())
qCCritical(rmkeyslog) << "No keys given.";
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
void RmKeysOperation::unittest()
{
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);
QVERIFY(result == testMap);
data.append(QLatin1String("testint"));
result = rmKeys(testMap, data);
QCOMPARE(result.count(), 2);
QVERIFY(result.contains(QLatin1String("subkeys")));
QVERIFY(result.contains(QLatin1String("subkeys2")));
cur = result.value(QLatin1String("subkeys")).toMap();
QCOMPARE(cur.count(), 2);
QVERIFY(cur.contains(QLatin1String("subsubkeys")));
QVERIFY(cur.contains(QLatin1String("testbool")));
cur = cur.value(QLatin1String("subsubkeys")).toMap();
QCOMPARE(cur.count(), 1);
QVERIFY(cur.contains(QLatin1String("testint2")));
cur = result.value(QLatin1String("subkeys2")).toMap();
QVERIFY(cur.isEmpty());
data.clear();
data.append(QLatin1String("subkeys/subsubkeys"));
result = rmKeys(testMap, data);
QCOMPARE(result.count(), 3);
QVERIFY(result.contains(QLatin1String("subkeys")));
QVERIFY(result.contains(QLatin1String("subkeys2")));
QVERIFY(result.contains(QLatin1String("testint")));
cur = result.value(QLatin1String("subkeys")).toMap();
QCOMPARE(cur.count(), 1);
QVERIFY(cur.contains(QLatin1String("testbool")));
cur = result.value(QLatin1String("subkeys2")).toMap();
QVERIFY(cur.isEmpty());
data.clear();
data.append(QLatin1String("subkeys/testbool"));
result = rmKeys(testMap, data);
QCOMPARE(result.count(), 3);
QVERIFY(result.contains(QLatin1String("subkeys")));
QVERIFY(result.contains(QLatin1String("subkeys2")));
QVERIFY(result.contains(QLatin1String("testint")));
cur = result.value(QLatin1String("subkeys")).toMap();
QCOMPARE(cur.count(), 1);
QVERIFY(cur.contains(QLatin1String("subsubkeys")));
cur = cur.value(QLatin1String("subsubkeys")).toMap();
QCOMPARE(cur.count(), 1);
QVERIFY(cur.contains(QLatin1String("testint2")));
cur = result.value(QLatin1String("subkeys2")).toMap();
QVERIFY(cur.isEmpty());
cur = result.value(QLatin1String("subkeys2")).toMap();
QVERIFY(cur.isEmpty());
// Test removing of non-existent key ...
testMap = rmKeys(testMap, data);
QTest::ignoreMessage(QtWarningMsg,
QRegularExpression("Key .* not found."));
testMap = rmKeys(testMap, data);
}
#endif
QVariantMap RmKeysOperation::rmKeys(const QVariantMap &map, const QStringList &removals)
{
QVariantMap result = map;
for (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 {
qCWarning(rmkeyslog) << "Key" << qPrintable(r) << "not found.";
continue;
}
stack.append(subMap);
}
// remove
Q_ASSERT(stack.count() == keys.count());
if (!stack.last().contains(keys.last())) {
qCWarning(rmkeyslog) << "Key" << qPrintable(r) << "not found.";
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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