Method applyDiff

apps/lib/diff/diffwidget.cpp:484–525

}

void DiffWidget::applyDiff(const QString &diff, ApplyFlags flags)
{
    //     const QString diff = getDiff(v, flags & Hunk, flags & (Staged | Discard));
    if (diff.isEmpty()) {
        return;
    }

    auto *file = new QTemporaryFile(this);
    if (!file->open()) {
        //         sendMessage(i18n("Failed to stage selection"), true);
        return;
    }
    file->write(diff.toUtf8());
    file->close();

    Q_ASSERT(!m_params.workingDir.isEmpty());
    auto *git = new QProcess(this);
    QStringList args;
    if (flags & Discard) {
        args = QStringList{QStringLiteral("apply"), file->fileName()};
    } else {
        args = QStringList{QStringLiteral("apply"), QStringLiteral("--index"), QStringLiteral("--cached"), file->fileName()};
    }
    if (!setupGitProcess(*git, m_params.workingDir, args)) {
        gitNotFoundMessage();
        return;
    }

    connect(git, &QProcess::finished, this, [this, git, file](int exitCode, QProcess::ExitStatus es) {
        if (es != QProcess::NormalExit || exitCode != 0) {
            onError(git->readAllStandardError(), git->exitCode());
        } else {
            runGitDiff();
            if (m_params.updateStatusCallback) {
                m_params.updateStatusCallback();
            }
        }
        delete file;
        git->deleteLater();
    });
    startHostProcess(*git, QProcess::ReadOnly);
}

void DiffWidget::runGitDiff()
{