添加日志重定向功能

CMakeLists.txt

@@ -167,6 +167,13 @@ add_executable(
         ${SOURCE_FILES}
         )
 
+if (CMAKE_BUILD_TYPE)
+        string(TOLOWER ${CMAKE_BUILD_TYPE} BUILD_TYPE)
+        if (${BUILD_TYPE} STREQUAL "debug")
+                target_compile_definitions(${PROJECT_NAME} PRIVATE UKUI_MENU_LOG_FILE_DISABLE)
+        endif ()
+endif ()
+
 target_compile_definitions(${PROJECT_NAME} PRIVATE $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:QT_QML_DEBUG>)
 target_link_libraries(${PROJECT_NAME}
         PRIVATE

src/main.cpp

@@ -3,12 +3,127 @@
 #include <QLocale>
 #include <QFile>
 #include <QDebug>
+#include <QDir>
+#include <QDateTime>
+#include <QStandardPaths>
 
 #include "qtsingleapplication.h"
 #include "ukui-menu-application.h"
 
+#define LOG_FILE_COUNT         2
+#define MAX_LOG_FILE_SIZE      4194304
+#define MAX_LOG_CHECK_INTERVAL 43200000
+
+static int logFileId = -1;
+static QString logFile     = "ukui-menu.log";
+static QString logFilePath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation) + "/.log/ukui-menu/";
+static QString logFileName = logFilePath + "ukui-menu-%1.log";
+static quint64 startupTime;
+
+bool checkFileSize(const QString &fileName) {
+    return QFile(fileName).size() < MAX_LOG_FILE_SIZE;
+}
+
+void clearFile(const QString &fileName) {
+    QFile file(fileName);
+    file.open(QIODevice::WriteOnly);
+    file.write("");
+    file.flush();
+    file.close();
+}
+
+void initLogFile() {
+    QDir dir;
+    if (!dir.exists(logFilePath)) {
+        if (!dir.mkpath(logFilePath)) {
+            qWarning() << "Unable to create" << logFilePath;
+            return;
+        }
+    }
+
+    for (int i = 0; i < LOG_FILE_COUNT; ++i) {
+        logFile = logFileName.arg(i);
+        if (QFile::exists(logFile)) {
+            if (checkFileSize(logFile)) {
+                logFileId = i;
+                break;
+            }
+        } else {
+            QFile file(logFile);
+            file.open(QIODevice::WriteOnly);
+            file.close();
+        }
+    }
+
+    if (logFileId < 0) {
+        logFileId = 0;
+        logFile = logFileName.arg(logFileId);
+        clearFile(logFile);
+    }
+
+    qInfo() << "init log file:" << logFile;
+}
+
+void checkLogFile() {
+    quint64 logTime = QDateTime::currentDateTime().toMSecsSinceEpoch();
+    quint64 spacing = std::max(logTime, startupTime) - std::min(logTime, startupTime);
+
+    if (spacing <= MAX_LOG_CHECK_INTERVAL || checkFileSize(logFile)) {
+        return;
+    }
+
+    logFileId = ((logFileId + 1) % LOG_FILE_COUNT);
+    logFile = logFileName.arg(logFileId);
+    if (!checkFileSize(logFile)) {
+        clearFile(logFile);
+    }
+}
+
+void messageOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg)
+{
+    checkLogFile();
+
+    QByteArray localMsg = msg.toLocal8Bit();
+    QByteArray currentTime = QTime::currentTime().toString().toLocal8Bit();
+    const char *file = context.file ? context.file : "";
+    const char *function = context.function ? context.function : "";
+
+    FILE *log_file = fopen(logFile.toLocal8Bit().constData(), "a+");
+
+    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[])
 {
+    startupTime = QDateTime::currentDateTime().toMSecsSinceEpoch();
+    initLogFile();
+#ifndef UKUI_MENU_LOG_FILE_DISABLE
+    qInstallMessageHandler(messageOutput);
+#endif
+
 #if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
 //    SideBarApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
@@ -49,5 +164,7 @@ int main(int argc, char *argv[])
     QObject::connect(&app, &QtSingleApplication::messageReceived,
                      &messageProcessor, &UkuiMenu::MenuMessageProcessor::processMessage);
 
+    qInfo() << "ukui-menu startup time:" << (QDateTime::currentDateTime().toMSecsSinceEpoch() - startupTime)
+             << ",date:" << QDateTime::currentDateTime().toString();
     return QtSingleApplication::exec();
 }

src/ukui-menu-application.cpp

@@ -17,6 +17,7 @@
  */
 
 #include "ukui-menu-application.h"
+#include "menu-dbus-service.h"
 #include "settings.h"
 #include "commons.h"
 #include "model-manager.h"
@@ -33,6 +34,7 @@
 #include <QCoreApplication>
 #include <QCommandLineParser>
 #include <QQmlContext>
+#include <QQmlEngine>
 #include <QDebug>
 
 using namespace UkuiMenu;

src/ukui-menu-application.h

@@ -19,15 +19,16 @@
 #ifndef UKUI_MENU_UKUI_MENU_APPLICATION_H
 #define UKUI_MENU_UKUI_MENU_APPLICATION_H
 
-#include "menu-dbus-service.h"
-#include <QQmlEngine>
+#include <QObject>
 
+class QQmlEngine;
 class QCommandLineOption;
 
 namespace UkuiMenu {
 
 class MenuMessageProcessor;
 class MenuWindow;
+class MenuDbusService;
 
 class UkuiMenuApplication : public QObject
 {