Logger: runtime log config, no logs till a user selects wallet mode

main.qml

@@ -1367,6 +1367,7 @@ ApplicationWindow {
         } else {
             wizard.wizardState = "wizardHome";
             rootItem.state = "normal"
+            logger.resetLogFilePath(persistentSettings.portable);
             openWallet("wizard");
         }
 

pages/settings/SettingsInfo.qml

@@ -272,9 +272,9 @@ Rectangle {
                     <style type='text/css'>\
                         a {cursor:pointer;text-decoration: none; color: #FF6C3C}\
                     </style>\
-                    <a href='#'>%1</a>".arg(walletLogPath)
+                    <a href='#'>%1</a>".arg(logger.logFilePath)
                 textFormat: Text.RichText
-                onLinkActivated: oshelper.openContainingFolder(walletLogPath)
+                onLinkActivated: oshelper.openContainingFolder(logger.logFilePath)
 
                 MouseArea {
                     anchors.fill: parent
@@ -397,7 +397,7 @@ Rectangle {
                     if(currentWallet)
                         data += currentWallet.walletCreationHeight;
 
-                    data += "\nWallet log path: " + walletLogPath;
+                    data += "\nWallet log path: " + logger.logFilePath;
                     data += "\nWallet mode: " + walletModeString;
                     data += "\nGraphics mode: " + isOpenGL ? "OpenGL" : "Low graphics mode";
                     if (isTails)

src/main/Logger.cpp

@@ -26,6 +26,8 @@
 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#include "Logger.h"
+
 #include <QCoreApplication>
 #include <QStandardPaths>
 #include <QFileInfo>
@@ -33,9 +35,11 @@
 #include <QDir>
 #include <QDebug>
 
-#include "Logger.h"
+#include <easylogging++.h>
+#include <wallet/api/wallet2_api.h>
+
+#include "qt/MoneroSettings.h"
 #include "qt/TailsOS.h"
-#include "wallet/api/wallet2_api.h"
 
 // default log path by OS (should be writable)
 static const QString defaultLogName = "monero-wallet-gui.log";
@@ -63,15 +67,21 @@ static const QString defaultLogName = "monero-wallet-gui.log";
 
 
 // return the absolute path of the logfile and ensure path folder exists
-const QString getLogPath(const QString logPath)
+const QString getLogPath(const QString &userDefinedLogFilePath, bool portable)
 {
-    const QFileInfo fi(logPath);
+    const QFileInfo fi(userDefinedLogFilePath);
+    if (!userDefinedLogFilePath.isEmpty() && !fi.isDir())
+    {
+        return fi.absoluteFilePath();
+    }
+
+    if (portable)
+    {
+        return QDir(MoneroSettings::portableFolderName()).filePath(defaultLogName);
+    }
 
     if(TailsOS::detect() && TailsOS::usePersistence)
         return QDir::homePath() + "/Persistent/Monero/logs/" + defaultLogName;
-
-    if(!logPath.isEmpty() && !fi.isDir())
-        return fi.absoluteFilePath();
     else {
         QDir appDir(osPath + "/" + appFolder);
         if(!appDir.exists())
@@ -98,3 +108,26 @@ void messageHandler(QtMsgType type, const QMessageLogContext &context, const QSt
     }
 }
 
+Logger::Logger(QCoreApplication &parent, QString userDefinedLogFilePath)
+    : QObject(&parent)
+    , m_applicationFilePath(parent.applicationFilePath().toStdString())
+    , m_userDefinedLogFilePath(std::move(userDefinedLogFilePath))
+{
+    el::Configurations c;
+    c.setGlobally(el::ConfigurationType::ToFile, "false");
+    c.setGlobally(el::ConfigurationType::ToStandardOutput, "true");
+    el::Loggers::setDefaultConfigurations(c, true);
+}
+
+void Logger::resetLogFilePath(bool portable)
+{
+    m_logFilePath = QDir::toNativeSeparators(getLogPath(m_userDefinedLogFilePath, portable));
+    Monero::Wallet::init(m_applicationFilePath.c_str(), "monero-wallet-gui", m_logFilePath.toStdString(), true);
+    qInstallMessageHandler(messageHandler);
+    emit logFilePathChanged();
+}
+
+QString Logger::logFilePath() const
+{
+    return m_logFilePath;
+}

src/main/Logger.h

@@ -26,11 +26,28 @@
 // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef LOGGER_H
-#define LOGGER_H
+#pragma once
 
-const QString getLogPath(const QString logPath);
-void messageHandler(QtMsgType type, const QMessageLogContext &context, const QString &message);
+#include <QCoreApplication>
+#include <QObject>
+#include <QString>
 
-#endif // LOGGER_H
+class Logger : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString logFilePath READ logFilePath NOTIFY logFilePathChanged)
 
+public:
+    Logger(QCoreApplication &parent, QString userDefinedLogFilePath);
+
+    Q_INVOKABLE void resetLogFilePath(bool portable);
+    QString logFilePath() const;
+
+signals:
+    void logFilePathChanged() const;
+
+private:
+    const std::string m_applicationFilePath;
+    QString m_logFilePath;
+    const QString m_userDefinedLogFilePath;
+};

src/main/main.cpp

@@ -61,7 +61,6 @@
 #include "model/SubaddressModel.h"
 #include "SubaddressAccount.h"
 #include "model/SubaddressAccountModel.h"
-#include "wallet/api/wallet2_api.h"
 #include "Logger.h"
 #include "MainApp.h"
 #include "qt/downloader.h"
@@ -269,10 +268,7 @@ Verify update binary using 'shasum'-compatible (SHA256 algo) output signed by tw
 
     Monero::Utils::onStartup();
 
-    // Log settings
-    const QString logPath = QDir::toNativeSeparators(getLogPath(parser.value(logPathOption)));
-    Monero::Wallet::init(argv[0], "monero-wallet-gui", logPath.toStdString().c_str(), true);
-    qInstallMessageHandler(messageHandler);
+    Logger logger(app, parser.value(logPathOption));
 
     // loglevel is configured in main.qml. Anything lower than
     // qWarning is not shown here unless MONERO_LOG_LEVEL env var is set
@@ -281,7 +277,7 @@ Verify update binary using 'shasum'-compatible (SHA256 algo) output signed by tw
     if (logLevelOk && logLevel >= 0 && logLevel <= Monero::WalletManagerFactory::LogLevel_Max){
         Monero::WalletManagerFactory::setLogLevel(logLevel);
     }
-    qWarning().noquote() << "app startd" << "(log: " + logPath + ")";
+    qWarning().noquote() << "app startd" << "(log: " + logger.logFilePath() + ")";
 
     if (parser.isSet(verifyUpdateOption))
     {
@@ -446,14 +442,14 @@ Verify update binary using 'shasum'-compatible (SHA256 algo) output signed by tw
 
     engine.addImageProvider(QLatin1String("qrcode"), new QRCodeImageProvider());
 
+    engine.rootContext()->setContextProperty("logger", &logger);
+
     engine.rootContext()->setContextProperty("mainApp", &app);
 
     engine.rootContext()->setContextProperty("IPC", ipc);
 
     engine.rootContext()->setContextProperty("qtRuntimeVersion", qVersion());
 
-    engine.rootContext()->setContextProperty("walletLogPath", logPath);
-
     engine.rootContext()->setContextProperty("tailsUsePersistence", TailsOS::usePersistence);
 
 // Exclude daemon manager from IOS

src/qt/MoneroSettings.cpp

@@ -191,7 +191,7 @@ QString MoneroSettings::portableFilePath() const
     return filename;
 }
 
-QString MoneroSettings::portableFolderName() const
+QString MoneroSettings::portableFolderName()
 {
     return "monero-storage";
 }

src/qt/MoneroSettings.h

@@ -63,6 +63,8 @@ public:
     Q_INVOKABLE bool setPortable(bool enabled);
     Q_INVOKABLE void setWritable(bool enabled);
 
+    static QString portableFolderName();
+
 public slots:
     void _q_propertyChanged();
 
@@ -84,7 +86,6 @@ private:
     bool portable() const;
     bool portableConfigExists() const;
     QString portableFilePath() const;
-    QString portableFolderName() const;
     std::unique_ptr<QSettings> portableSettings() const;
     std::unique_ptr<QSettings> unportableSettings() const;
     void swap(std::unique_ptr<QSettings> newSettings);

wizard/WizardModeSelection.qml

@@ -48,6 +48,7 @@ Rectangle {
             return;
         }
 
+        logger.resetLogFilePath(portable);
         appWindow.changeWalletMode(mode);
         wizardController.wizardStackView.backTransition = false;
         wizardController.wizardState = wizardState;