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

#include <QApplication>
#include <QFile>
#include <QTime>
#include <QStandardPaths>
#include <QDir>
#include <syslog.h>
#include <unistd.h>
#include <QDebug>
#include "ukui-search-service.h"
using namespace UkuiSearch;
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::TempLocation) + "/ukui-search.log";
//    QString logFilePath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation) + "/.config/org.ukui/ukui-search/ukui-search.log";
    QString logFilePath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation) + "/.config/org.ukui/ukui-search-service.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
    UkuiSearchService ukss(argc, argv, "ukui-search-service");
    if (ukss.isRunning())
        return 0;

    return ukss.exec();
}