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/****************************************************************************
**
** Copyright (C) 2019 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 "algorithm.h"
#include "namevaluedictionary.h"
#include "qtcassert.h"
#include <QDir>
namespace Utils {
namespace {
NameValueMap::iterator findKey(NameValueMap &input, Utils::OsType osType, const QString &key)
{
const Qt::CaseSensitivity casing = (osType == Utils::OsTypeWindows) ? Qt::CaseInsensitive
: Qt::CaseSensitive;
for (auto it = input.begin(); it != input.end(); ++it) {
if (key.compare(it.key(), casing) == 0)
return it;
}
return input.end();
}
NameValueMap::const_iterator findKey(const NameValueMap &input, Utils::OsType osType, const QString &key)
{
const Qt::CaseSensitivity casing = (osType == Utils::OsTypeWindows) ? Qt::CaseInsensitive
: Qt::CaseSensitive;
for (auto it = input.constBegin(); it != input.constEnd(); ++it) {
if (key.compare(it.key(), casing) == 0)
return it;
}
return input.constEnd();
}
} // namespace
NameValueDictionary::NameValueDictionary(const QStringList &env, OsType osType)
: m_osType(osType)
{
for (const QString &s : env) {
int i = s.indexOf('=', 1);
if (i >= 0) {
const QString key = s.left(i);
if (!key.contains('=')) {
const QString value = s.mid(i + 1);
set(key, value);
}
}
}
}
NameValueDictionary::NameValueDictionary(const NameValuePairs &nameValues)
{
for (const auto &nameValue : nameValues)
set(nameValue.first, nameValue.second);
}
QStringList NameValueDictionary::toStringList() const
{
QStringList result;
for (auto it = m_values.constBegin(); it != m_values.constEnd(); ++it) {
if (it.value().second)
result.append(it.key() + '=' + it.value().first);
}
return result;
}
void NameValueDictionary::set(const QString &key, const QString &value, bool enabled)
{
QTC_ASSERT(!key.contains('='), return );
auto it = findKey(m_values, m_osType, key);
const auto valuePair = qMakePair(value, enabled);
if (it == m_values.end())
m_values.insert(key, valuePair);
else
it.value() = valuePair;
}
void NameValueDictionary::unset(const QString &key)
{
QTC_ASSERT(!key.contains('='), return );
auto it = findKey(m_values, m_osType, key);
if (it != m_values.end())
m_values.erase(it);
}
void NameValueDictionary::clear()
{
m_values.clear();
}
QString NameValueDictionary::value(const QString &key) const
{
const auto it = findKey(m_values, m_osType, key);
return it != m_values.end() && it.value().second ? it.value().first : QString();
}
NameValueDictionary::const_iterator NameValueDictionary::constFind(const QString &name) const
{
return findKey(m_values, m_osType, name);
}
int NameValueDictionary::size() const
{
return m_values.size();
}
void NameValueDictionary::modify(const NameValueItems &items)
{
NameValueDictionary resultKeyValueDictionary = *this;
for (const NameValueItem &item : items)
item.apply(&resultKeyValueDictionary);
*this = resultKeyValueDictionary;
}
enum : char {
#ifdef Q_OS_WIN
pathSepC = ';'
#else
pathSepC = ':'
#endif
};
NameValueItems NameValueDictionary::diff(const NameValueDictionary &other, bool checkAppendPrepend) const
{
NameValueMap::const_iterator thisIt = constBegin();
NameValueMap::const_iterator otherIt = other.constBegin();
NameValueItems result;
while (thisIt != constEnd() || otherIt != other.constEnd()) {
if (thisIt == constEnd() || thisIt.key() > otherIt.key()) {
result.append({otherIt.key(), otherIt.value().first,
otherIt.value().second ? NameValueItem::SetEnabled : NameValueItem::SetDisabled});
++otherIt;
} else if (otherIt == other.constEnd()) {
result.append(NameValueItem(thisIt.key(), QString(), NameValueItem::Unset));
++thisIt;
} else if (thisIt.key() < otherIt.key()) {
result.append(NameValueItem(thisIt.key(), QString(), NameValueItem::Unset));
++thisIt;
} else {
const QString &oldValue = thisIt.value().first;
const QString &newValue = otherIt.value().first;
const bool oldEnabled = thisIt.value().second;
const bool newEnabled = otherIt.value().second;
if (oldValue != newValue) {
if (checkAppendPrepend && newValue.startsWith(oldValue)
&& oldEnabled == newEnabled) {
QString appended = newValue.right(newValue.size() - oldValue.size());
if (appended.startsWith(QLatin1Char(pathSepC)))
appended.remove(0, 1);
result.append(NameValueItem(otherIt.key(), appended, NameValueItem::Append));
} else if (checkAppendPrepend && newValue.endsWith(oldValue)
&& oldEnabled == newEnabled) {
QString prepended = newValue.left(newValue.size() - oldValue.size());
if (prepended.endsWith(QLatin1Char(pathSepC)))
prepended.chop(1);
result.append(NameValueItem(otherIt.key(), prepended, NameValueItem::Prepend));
} else {
result.append({otherIt.key(), newValue, newEnabled
? NameValueItem::SetEnabled : NameValueItem::SetDisabled});
}
}
++otherIt;
++thisIt;
}
}
return result;
}
bool NameValueDictionary::hasKey(const QString &key) const
{
return m_values.contains(key);
}
OsType NameValueDictionary::osType() const
{
return m_osType;
}
QString NameValueDictionary::userName() const
{
return value(QString::fromLatin1(m_osType == OsTypeWindows ? "USERNAME" : "USER"));
}
} // namespace Utils
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