Store all files in the current directory for portable installations. Fixes #43

app/app.pro

@@ -88,7 +88,8 @@ SOURCES += \
     gui/computermodel.cpp \
     gui/appmodel.cpp \
     streaming/streamutils.cpp \
-    backend/autoupdatechecker.cpp
+    backend/autoupdatechecker.cpp \
+    path.cpp
 
 HEADERS += \
     utils.h \
@@ -104,7 +105,8 @@ HEADERS += \
     gui/appmodel.h \
     streaming/video/decoder.h \
     streaming/streamutils.h \
-    backend/autoupdatechecker.h
+    backend/autoupdatechecker.h \
+    path.h
 
 # Platform-specific renderers and decoders
 ffmpeg {

app/backend/boxartmanager.cpp

@@ -1,13 +1,12 @@
 #include "boxartmanager.h"
+#include "../path.h"
 
-#include <QStandardPaths>
 #include <QImageReader>
 #include <QImageWriter>
 
 BoxArtManager::BoxArtManager(QObject *parent) :
     QObject(parent),
-    m_BoxArtDir(
-        QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/boxart")
+    m_BoxArtDir(Path::getBoxArtCacheDir())
 {
     if (!m_BoxArtDir.exists()) {
         m_BoxArtDir.mkpath(".");

app/main.cpp

@@ -11,6 +11,7 @@
 #define SDL_MAIN_HANDLED
 #include <SDL.h>
 
+#include "path.h"
 #include "gui/computermodel.h"
 #include "gui/appmodel.h"
 #include "backend/autoupdatechecker.h"
@@ -130,15 +131,23 @@ void qtLogToDiskHandler(QtMsgType type, const QMessageLogContext&, const QString
 
 int main(int argc, char *argv[])
 {
+    if (QFile(QDir::currentPath() + "/portable.dat").exists()) {
+        qInfo() << "Running in portable mode from:" << QDir::currentPath();
+        QSettings::setDefaultFormat(QSettings::IniFormat);
+        QSettings::setPath(QSettings::IniFormat, QSettings::UserScope, QDir::currentPath());
+        QSettings::setPath(QSettings::IniFormat, QSettings::SystemScope, QDir::currentPath());
+
+        // Initialize paths for portable mode
+        Path::initialize(true);
+    }
+    else {
+        // Initialize paths for standard installation
+        Path::initialize(false);
+    }
+
 #ifdef USE_CUSTOM_LOGGER
 #ifdef LOG_TO_FILE
-#ifdef Q_OS_DARWIN
-    // On macOS, $TMPDIR is some random folder under /var/folders/ that nobody can
-    // easily find, so use the system's global tmp directory instead.
-    QDir tempDir("/tmp");
-#else
-    QDir tempDir(QDir::tempPath());
-#endif
+    QDir tempDir(Path::getLogDir());
     s_LoggerFile = new QFile(tempDir.filePath(QString("Moonlight-%1.log").arg(QDateTime::currentSecsSinceEpoch())));
     if (s_LoggerFile->open(QIODevice::WriteOnly)) {
         qInfo() << "Redirecting log output to " << s_LoggerFile->fileName();

app/path.cpp

@@ -0,0 +1,39 @@
+#include "path.h"
+
+#include <QtDebug>
+#include <QDir>
+#include <QStandardPaths>
+#include <QSettings>
+
+QString Path::s_LogDir;
+QString Path::s_BoxArtCacheDir;
+
+QString Path::getLogDir()
+{
+    Q_ASSERT(!s_LogDir.isEmpty());
+    return s_LogDir;
+}
+
+QString Path::getBoxArtCacheDir()
+{
+    Q_ASSERT(!s_BoxArtCacheDir.isEmpty());
+    return s_BoxArtCacheDir;
+}
+
+void Path::initialize(bool portable)
+{
+    if (portable) {
+        s_LogDir = QDir::currentPath();
+        s_BoxArtCacheDir = QDir::currentPath() + "/boxart";
+    }
+    else {
+#ifdef Q_OS_DARWIN
+        // On macOS, $TMPDIR is some random folder under /var/folders/ that nobody can
+        // easily find, so use the system's global tmp directory instead.
+        s_LogDir = "/tmp";
+#else
+        s_LogDir = QDir::tempPath();
+#endif
+        s_BoxArtCacheDir = QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/boxart";
+    }
+}

app/path.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <QString>
+
+class Path
+{
+public:
+    static QString getLogDir();
+
+    static QString getBoxArtCacheDir();
+
+    static void initialize(bool portable);
+
+    static QString s_LogDir;
+    static QString s_BoxArtCacheDir;
+};

scripts/generate-installers.bat

@@ -120,6 +120,8 @@ echo Building portable package
 rem This must be done after WiX harvesting and signing, since the VCRT dlls are MS signed
 rem and should not be harvested for inclusion in the full installer
 copy "%VCREDIST_PATH%\%ARCH%\Microsoft.VC141.CRT\*.dll" %DEPLOY_FOLDER%
+rem This file tells Moonlight that it's a portable installation
+echo. > %DEPLOY_FOLDER%\portable.dat
 if !ERRORLEVEL! NEQ 0 goto Error
 7z a %INSTALLER_FOLDER%\MoonlightPortable.zip %DEPLOY_FOLDER%\*
 if !ERRORLEVEL! NEQ 0 goto Error