ukui-search/ukui-search-service-dir-manager/main.cpp

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */
#include <QCoreApplication>
#include <QTime>
#include <QFile>
#include <QStandardPaths>
#include <QDir>
#include <syslog.h>
#include <unistd.h>
#include <QDebug>
#include "ukui-search-dir-manager-dbus.h"
void messageOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
    QByteArray localMsg = msg.toLocal8Bit();
    QByteArray currentTime = QTime::currentTime().toString().toLocal8Bit();

    bool showDebug = true;
    QString logFilePath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation) + "/.config/org.ukui/ukui-search-service-dir-manager.log";
    if (!QFile::exists(logFilePath)) {
        showDebug = false;
    }
    FILE *log_file = nullptr;

    if (showDebug) {
        log_file = fopen(logFilePath.toLocal8Bit().constData(), "a+");
    }

    const char *file = context.file ? context.file : "";
    const char *function = context.function ? context.function : "";
    switch (type) {
    case QtDebugMsg:
        if (!log_file) {
            break;
        }
        fprintf(log_file, "Debug: %s: %s (%s:%u, %s)\n", currentTime.constData(), localMsg.constData(), file, context.line, function);
        break;
    case QtInfoMsg:
        fprintf(log_file? log_file: stdout, "Info: %s: %s (%s:%u, %s)\n", currentTime.constData(), localMsg.constData(), file, context.line, function);
        break;
    case QtWarningMsg:
        fprintf(log_file? log_file: stderr, "Warning: %s: %s (%s:%u, %s)\n", currentTime.constData(), localMsg.constData(), file, context.line, function);
        break;
    case QtCriticalMsg:
        fprintf(log_file? log_file: stderr, "Critical: %s: %s (%s:%u, %s)\n", currentTime.constData(), localMsg.constData(), file, context.line, function);
        break;
    case QtFatalMsg:
        fprintf(log_file? log_file: stderr, "Fatal: %s: %s (%s:%u, %s)\n", currentTime.constData(), localMsg.constData(), file, context.line, function);
        break;
    }

    if (log_file)
        fclose(log_file);
}

int main(int argc, char *argv[])
{
    char *p_home = NULL;
    unsigned int i = 0;
    while(p_home == NULL) {
        ::sleep(1);
        ++i;
        p_home = getenv("HOME");
        if(i % 5 == 0) {
            qWarning() << "I can't find home! I'm done here!!";
            printf("I can't find home! I'm done here!!");
            syslog(LOG_ERR, "I can't find home! I'm done here!!\n");
        }
    }
    p_home = NULL;
    while(!QDir(QDir::homePath()).exists()) {
        qWarning() << "Home is not exits!!";
        printf("Home is not exits!!");
        syslog(LOG_ERR, "Home is not exits!!\n");
        ::sleep(1);
    }

    // Output log to file
    qInstallMessageHandler(messageOutput);
#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
    QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
    QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
#endif
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
    QApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
#endif
    UkuiSearchDirManagerDbus dirDbus(argc, argv, "ukui-search-service-dir-manager");

    if (dirDbus.isRunning()) {
        return 0;
    }
    return dirDbus.exec();
}