update:保存日志到/tmp

src/appdelegate.cpp

@@ -240,11 +240,53 @@ void AppDelegate::startNextInstall() {
     }
 
     m_installProcess = new QProcess(this);
+
+    // 新增：准备安装日志文件
+    QString logPath = QString("/tmp/%1_install.log").arg(packageName);
+    QFile *logFile = new QFile(logPath, m_installProcess);
+    if (logFile->open(QIODevice::Append | QIODevice::Text)) {
+        // 设置权限为777
+        QFile::setPermissions(logPath, QFile::ReadOwner | QFile::WriteOwner | QFile::ExeOwner |
+                                         QFile::ReadGroup | QFile::WriteGroup | QFile::ExeGroup |
+                                         QFile::ReadOther | QFile::WriteOther | QFile::ExeOther);
+        connect(m_installProcess, &QProcess::readyReadStandardOutput, this, [this, packageName, logFile]() {
+            QByteArray out = m_installProcess->readAllStandardOutput();
+            logFile->write(out);
+            logFile->flush();
+            QString text = QString::fromLocal8Bit(out);
+            qDebug().noquote() << text;
+            // 检查“软件包已安装”关键字
+            if (text.contains(QStringLiteral("软件包已安装"))) {
+                m_downloads[packageName].isInstalling = false;
+                m_downloads[packageName].isInstalled = true;
+                emit updateDisplay(packageName);
+            }
+        });
+        connect(m_installProcess, &QProcess::readyReadStandardError, this, [this, logFile]() {
+            QByteArray err = m_installProcess->readAllStandardError();
+            logFile->write(err);
+            logFile->flush();
+            qDebug().noquote() << QString::fromLocal8Bit(err);
+        });
+        connect(m_installProcess, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
+                this, [this, packageName, logFile](int /*exitCode*/, QProcess::ExitStatus /*status*/) {
+            if (logFile) logFile->close();
+            // 若未检测到“软件包已安装”，此处兜底
+            if (!m_downloads[packageName].isInstalled) {
+                m_downloads[packageName].isInstalling = false;
+            }
+            emit updateDisplay(packageName);
+            m_installProcess->deleteLater();
+            m_installProcess = nullptr;
+            m_installingPackage.clear();
+            startNextInstall();
+        });
+    } else {
+        // 日志文件无法打开时，仍然要连接原有信号
         connect(m_installProcess, &QProcess::readyReadStandardOutput, this, [this, packageName]() {
             QByteArray out = m_installProcess->readAllStandardOutput();
             QString text = QString::fromLocal8Bit(out);
             qDebug().noquote() << text;
-        // 检查“软件包已安装”关键字
             if (text.contains(QStringLiteral("软件包已安装"))) {
                 m_downloads[packageName].isInstalling = false;
                 m_downloads[packageName].isInstalled = true;
@@ -257,16 +299,13 @@ void AppDelegate::startNextInstall() {
         });
         connect(m_installProcess, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
                 this, [this, packageName](int /*exitCode*/, QProcess::ExitStatus /*status*/) {
-        // 若未检测到“软件包已安装”，此处兜底
-        if (!m_downloads[packageName].isInstalled) {
-            m_downloads[packageName].isInstalling = false;
-        }
             emit updateDisplay(packageName);
             m_installProcess->deleteLater();
             m_installProcess = nullptr;
             m_installingPackage.clear();
             startNextInstall();
         });
+    }
 
     // 注意参数顺序：deb路径在前，--no-create-desktop-entry在后
     QStringList args;

src/downloadmanager.cpp

@@ -33,9 +33,20 @@ void DownloadManager::startDownload(const QString &packageName, const QString &u
     QProcess *process = new QProcess(this);
     m_processes.insert(packageName, process);
 
-    connect(process, &QProcess::readyReadStandardOutput, this, [this, packageName, process]() {
+    // 新增：准备日志文件
+    QString logPath = QString("/tmp/%1_download.log").arg(packageName);
+    QFile *logFile = new QFile(logPath, process);
+    if (logFile->open(QIODevice::Append | QIODevice::Text)) {
+        // 设置权限为777
+        QFile::setPermissions(logPath, QFile::ReadOwner | QFile::WriteOwner | QFile::ExeOwner |
+                                         QFile::ReadGroup | QFile::WriteGroup | QFile::ExeGroup |
+                                         QFile::ReadOther | QFile::WriteOther | QFile::ExeOther);
+        connect(process, &QProcess::readyReadStandardOutput, this, [this, packageName, process, logFile]() {
             while (process->canReadLine()) {
                 QString line = QString::fromUtf8(process->readLine()).trimmed();
+                // 写入日志
+                logFile->write(line.toUtf8() + '\n');
+                logFile->flush();
                 QRegularExpression regex(R"(\((\d+)%\))");
                 QRegularExpressionMatch match = regex.match(line);
                 if (match.hasMatch()) {
@@ -44,9 +55,15 @@ void DownloadManager::startDownload(const QString &packageName, const QString &u
                 }
             }
         });
+        connect(process, &QProcess::readyReadStandardError, this, [process, logFile]() {
+            QByteArray err = process->readAllStandardError();
+            logFile->write(err);
+            logFile->flush();
+        });
+    }
 
     connect(process, QOverload<int, QProcess::ExitStatus>::of(&QProcess::finished),
-            this, [this, packageName, outputPath](int exitCode, QProcess::ExitStatus status) {
+            this, [this, packageName, outputPath, logFile](int exitCode, QProcess::ExitStatus status) {
         bool success = (exitCode == 0 && status == QProcess::NormalExit);
         if (!success) {
             qWarning() << "Download failed for" << packageName << "exit code:" << exitCode;
@@ -55,6 +72,8 @@ void DownloadManager::startDownload(const QString &packageName, const QString &u
         removeAria2Files(outputPath); // 清理残留 .aria2
         emit downloadFinished(packageName, success);
 
+        if (logFile) logFile->close();
+
         QProcess *proc = m_processes.take(packageName);
         if (proc) proc->deleteLater();
     });