Major Bug fixes was done, it is as follows.

    * Fixed stalled updater after error in the updater due
      to network issues.

    * Fixed huge memory leaks, (i.e) Allocation of Block Replies
      were never freed by the program and were given the work to
      Qt and the operating system. Now we explicitly and safely delete
      all memory we allocate, Still there is a minor leak which needs
      to be fixed on the next release.

    * Fixed stalled updater on close of the progress dialog on a
      active update. (i.e) When the updater dialog was simply closed
      using the window buttons, The updater does not cancel itself.
      Instead it would continue the update in background.

    * Better handling of the redirected target file url. In the past
      errors were caused due to expired target file urls. THis is fixed
      now by resolving the redirects at the block range downloader and
      not the control file parser.

    * Other small fixes and added type safety when using QObject::sender()

CMakeLists.txt

@@ -5,6 +5,7 @@ set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTOUIC ON)
+
 option(LG "LOGGING_DISABLED" OFF)
 option(NG "NO_GUI" OFF)
 
@@ -68,6 +69,7 @@ list(APPEND toinstall
 
 if(LOGGING_DISABLED)
     message("-- [*] IMPORTANT: Logging will be disabled for this build.")
+    add_definitions(-DLOGGING_DISABLED)
 endif()
 
 if(NO_GUI)
@@ -83,7 +85,6 @@ else()
 endif()
 
 add_library(AppImageUpdaterBridge ${source})
-target_compile_definitions(AppImageUpdaterBridge PUBLIC LOGGING_DISABLED=LG)
 target_link_libraries(AppImageUpdaterBridge PUBLIC Qt5::Core Qt5::Network)
 target_include_directories(AppImageUpdaterBridge INTERFACE "$<BUILD_INTERFACE:. include>")
 target_include_directories(AppImageUpdaterBridge INTERFACE "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/AppImageUpdaterBridge>" )

examples/ProxyUpdate/main.cc

@@ -2,43 +2,43 @@
 #include <QDebug>
 #include <AppImageUpdaterBridge>
 
-int main(int ac , char **av){
-	if(ac == 1){
-		qInfo() << "Usage: " << av[0] << "[APPIMAGE PATH]";
-		return 0;
-	}
-	using AppImageUpdaterBridge::AppImageDeltaRevisioner;
-	using AppImageUpdaterBridge::errorCodeToDescriptionString;
-	QCoreApplication app(ac , av);
-	QString AppImagePath(av[1]);
+int main(int ac, char **av) {
+    if(ac == 1) {
+        qInfo() << "Usage: " << av[0] << "[APPIMAGE PATH]";
+        return 0;
+    }
+    using AppImageUpdaterBridge::AppImageDeltaRevisioner;
+    using AppImageUpdaterBridge::errorCodeToDescriptionString;
+    QCoreApplication app(ac, av);
+    QString AppImagePath(av[1]);
 
-	/* set proxy settings */
-	QNetworkProxy proxy;
-	proxy.setType(QNetworkProxy::Socks5Proxy);
-	proxy.setHostName("127.0.0.1");
-	proxy.setPort(9050);
-
-	AppImageDeltaRevisioner Revisioner(AppImagePath);
+    /* set proxy settings */
+    QNetworkProxy proxy;
+    proxy.setType(QNetworkProxy::Socks5Proxy);
+    proxy.setHostName("127.0.0.1");
+    proxy.setPort(9050);
 
-	QObject::connect(&Revisioner , &AppImageDeltaRevisioner::error ,
-	[&](short code){
-		qCritical() << "Could not continue the update because , "
-		         <<  errorCodeToDescriptionString(code);
-		app.quit();
-		return;
-	});
+    AppImageDeltaRevisioner Revisioner(AppImagePath);
 
-	QObject::connect(&Revisioner , &AppImageDeltaRevisioner::finished ,
-	[&](QJsonObject newVersion , QString oldVersionPath){
-		(void)newVersion;
-		(void)oldVersionPath;
-		qInfo() << "Update Completed!";
-		app.quit();
-		return;
-	});
-	Revisioner.setShowLog(true);
-	Revisioner.setProxy(proxy);
-	Revisioner.start();
-	return app.exec();
+    QObject::connect(&Revisioner, &AppImageDeltaRevisioner::error,
+    [&](short code) {
+        qCritical() << "Could not continue the update because , "
+                    <<  errorCodeToDescriptionString(code);
+        app.quit();
+        return;
+    });
+
+    QObject::connect(&Revisioner, &AppImageDeltaRevisioner::finished,
+    [&](QJsonObject newVersion, QString oldVersionPath) {
+        (void)newVersion;
+        (void)oldVersionPath;
+        qInfo() << "Update Completed!";
+        app.quit();
+        return;
+    });
+    Revisioner.setShowLog(true);
+    Revisioner.setProxy(proxy);
+    Revisioner.start();
+    return app.exec();
 }
 

examples/SimpleUpdate/CMakeLists.txt

@@ -7,6 +7,6 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 # find installed library
 find_package(AppImageUpdaterBridge)
 
-add_executable(SimpleUpdate main.cc TextProgressBar.cc)
+add_executable(SimpleUpdate main.cc cutelog.c)
 
 target_link_libraries(SimpleUpdate PRIVATE AppImageUpdaterBridge)

examples/SimpleUpdate/SimpleUpdate.pro

@@ -4,5 +4,5 @@ TEMPLATE = app
 TARGET = SimpleUpdate
 
 SOURCES += main.cc \
-           TextProgressBar.cc
-HEADERS += TextProgressBar.hpp
+           cutelog.c
+HEADERS += cutelog.h