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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "fsenginehandler.h"
#include "fixedlistfsengine.h"
#include "fsengine_impl.h"
#include "rootinjectfsengine.h"
#include "fsengine.h"
#include "../algorithm.h"
namespace Utils::Internal {
static FilePath removeDoubleSlash(const QString &fileName)
{
// Reduce every two or more slashes to a single slash.
QString result;
const QChar slash = QChar('/');
bool lastWasSlash = false;
for (const QChar &ch : fileName) {
if (ch == slash) {
if (!lastWasSlash)
result.append(ch);
lastWasSlash = true;
} else {
result.append(ch);
lastWasSlash = false;
}
}
// We use fromString() here to not normalize / clean the path anymore.
return FilePath::fromString(result);
}
QAbstractFileEngine *FSEngineHandler::create(const QString &fileName) const
{
if (fileName.startsWith(':'))
return nullptr;
static const QString rootPath = FilePath::specialRootPath();
static const FilePath rootFilePath = FilePath::fromString(rootPath);
const QString fixedFileName = QDir::cleanPath(fileName);
if (fixedFileName == rootPath) {
const FilePaths paths
= Utils::transform(FSEngine::registeredDeviceSchemes(), [](const QString &scheme) {
return rootFilePath.pathAppended(scheme);
});
return new FixedListFSEngine(removeDoubleSlash(fileName), paths);
}
if (fixedFileName.startsWith(rootPath)) {
const QStringList deviceSchemes = FSEngine::registeredDeviceSchemes();
for (const QString &scheme : deviceSchemes) {
if (fixedFileName == rootFilePath.pathAppended(scheme).toString()) {
const FilePaths filteredRoots = Utils::filtered(FSEngine::registeredDeviceRoots(),
[scheme](const FilePath &root) {
return root.scheme() == scheme;
});
return new FixedListFSEngine(removeDoubleSlash(fileName), filteredRoots);
}
}
FilePath fixedPath = FilePath::fromString(fixedFileName);
if (fixedPath.needsDevice())
return new FSEngineImpl(removeDoubleSlash(fileName));
}
if (fixedFileName.compare(QDir::rootPath(), Qt::CaseInsensitive) == 0)
return new RootInjectFSEngine(fileName);
return nullptr;
}
} // Utils::Internal
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