Method doDirectoryCompare

src/pdiff.cpp:1415–1474

Return true for success, else false

/// Return true for success, else false
bool KDiff3App::doDirectoryCompare(const bool bCreateNewInstance)
{
    FileAccess f1(m_sd1->getFilename());
    FileAccess f2(m_sd2->getFilename());
    FileAccess f3(m_sd3->getFilename());
    FileAccess f4(m_outputFilename);

    assert(f1.isDir());

    if(bCreateNewInstance)
    {
        Q_EMIT createNewInstance(f1.absoluteFilePath(), f2.absoluteFilePath(), f3.absoluteFilePath());
    }
    else
    {
        //Only a debugging aid now. Used to insure m_bDirCompare is not changed
        [[maybe_unused]] const bool bDirCompare = m_bDirCompare;

        FileAccess destDir;

        if(!m_bDefaultFilename) destDir = f4;
        m_pDirectoryMergeDock->show();
        m_pDirectoryMergeInfoDock->show();
        m_pMainWidget->hide();
        setUpdatesEnabled(true);

        (*gDirInfo) = DirectoryInfo(f1, f2, f3, destDir);

        bool bSuccess = m_pDirectoryMergeWindow->init(
            !m_outputFilename.isEmpty());
        //This is a bug if it still happens.
        assert(m_bDirCompare == bDirCompare);

        if(bSuccess)
        {
            m_sd1->reset();
            if(m_pDiffTextWindow1 != nullptr)
            {
                m_pDiffTextWindow1->init(QString(""), nullptr, eLineEndStyleDos, nullptr, 0, nullptr, nullptr);
                m_pDiffTextWindowFrame1->init();
            }
            m_sd2->reset();
            if(m_pDiffTextWindow2 != nullptr)
            {
                m_pDiffTextWindow2->init(QString(""), nullptr, eLineEndStyleDos, nullptr, 0, nullptr, nullptr);
                m_pDiffTextWindowFrame2->init();
            }
            m_sd3->reset();
            if(m_pDiffTextWindow3 != nullptr)
            {
                m_pDiffTextWindow3->init(QString(""), nullptr, eLineEndStyleDos, nullptr, 0, nullptr, nullptr);
                m_pDiffTextWindowFrame3->init();
            }
        }
        Q_EMIT updateAvailabilities();
        return bSuccess;
    }