filesignificancecheck.h

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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
 
#ifndef FILESIGNIFICANCECHECK_H
#define FILESIGNIFICANCECHECK_H
 
#include <QtCore/qdir.h>
#include <QtCore/qreadwritelock.h>
#include <QtCore/qregularexpression.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qvector.h>
 
#include <string>
#include <unordered_map>
#include <vector>
 
QT_BEGIN_NAMESPACE
 
class FileSignificanceCheck
{
public:
    FileSignificanceCheck() = default;
 
    static void create()
    {
        m_instance = new FileSignificanceCheck;
    }
 
    static void destroy()
    {
        delete m_instance;
        m_instance = nullptr;
    }
 
    static FileSignificanceCheck *the()
    {
        return m_instance;
    }
 
    void setRootDirectories(const QStringList &paths);
    void setExclusionRegExes(const QVector<QRegularExpression> &expressions);
 
    bool isFileSignificant(const std::string &filePath) const;
 
private:
    static FileSignificanceCheck *m_instance;
    std::vector<QDir> m_rootDirs;
    QVector<QRegularExpression> m_exclusionRegExes;
    mutable std::unordered_map<std::string, bool> m_cache;
    mutable QReadWriteLock m_cacheLock;
};
 
namespace LupdatePrivate {
 
inline bool isFileSignificant(const std::string &filePath)
{
    return FileSignificanceCheck::the()->isFileSignificant(filePath);
}
 
} // namespace LupdatePrivate
 
QT_END_NAMESPACE
 
#endif // header guard