Make sure the dc-data are vaild: set again the auto-request flag inside the CA-plugin.w

thread.

OnDemandUpdatePTU.pro

@@ -1,49 +1,139 @@
-# QT -= gui
-QT += core
-QT += widgets serialport
-QT += network
+QT += core gui
+QT += widgets serialport network
 
-TARGET = up_dev_ctrl
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
-CONFIG += c++11
-# CONFIG -= app_bundle
+TARGET = ATBUpdateTool
 
-# DEFINES+=LinuxDesktop
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
 
-QMAKE_CXXFLAGS += -Wno-deprecated-copy
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
 
-# custom target for 'git subtree'
-# subtree.target = subtree
-# subtree.commands = git subtree add --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash
-# subtree.depends =
-# QMAKE_EXTRA_UNIX_TARGETS += subtree
+# 1.3.6 :   Do not update device-controller/json files, but have the library
+#           (in a later step) do that.
+#           Fixed sending messages to ISMAS.
+#           Always execute contents of opkg_commands-file (even if there are no
+#           changes).
+# 1.3.7 :   Wait forever for git-commands to finish in QProcess executing such
+#           a command.
+# 1.3.8 :   Remove accessing opkg_commands under file-system-path /etc/psa_update.
+#           Activate download of json-configuration files.
+# 1.3.9 :   Fix sendLastVersion: use configured branch and not master branch in
+#               git show origin/master -s --format="c=%h m=%s d=%cI"    ==>
+#               git show origin/zg1/zone1 -s --format="c=%h m=%s d=%cI"
+#           Use dynamic values for os-release and apism-version when sending
+#           last version info.
+# 1.3.10:   Fix premature killing opkg-commands: detected timeout of 100s was
+#           too small when updating apism.
+#           Fix display of UPDATE_SUCCESS when opkg_command fails. Detected when
+#           updating apsim failed.
+# 1.3.11:   Integrate version of ATBUpdateTool in SendLastVersion-ISMAS-message.
+# 1.3.12:   Add command parameters for output of yocto-infos about ATBUpdateTool.
+#           Use 'git pull' instead of 'git fetch'.
+#           Use 'git clone --filter=blob:none' instead of 'git clone' to speed
+#           up cloning of customer repository.
+# 1.3.13:   Fix: if the customer repository is corrupted, remove it and re-clone
+#           the repository (without checking the ISMAS-trigger (WAIT-)button.
+# 1.3.14:   Add additional check for sanity of customer repository using
+#           "git fsck".
+#           Stream-lined code of update process: massive refactoring.
+#           Added functionality: If WAIT button is not active, then an existing
+#           customer repository will be repaired, or a not existing repository
+#           will be cloned. The process stops then.
+#           However, if the WAIT button is active, the at least the commands in
+#           opkg_commands will be executed. Changed files in the customer
+#           repository will be worked on: tariff-files will be synced with the
+#           local filesystem, json-files will be downloaded to firmware.
+#           The device-controller firmware will be handled in a later version.
+VERSION="1.3.15"
+#           Bug fixes found during testing.
+#           Don't disable Exit-button during update-process.
+#           Removed worker-thread with an own event-loop: only the GUI thread
+#           has an event loop. Tested JSON-downloads several times successfully
+#           (using the slave lib where the CA helper tool was active as master).
+#           Turned previous worker-object into its own thread, but without any
+#           own event-loop (so it cannot block anything inside the CA-plugin).
 
-! exists(DCPlugin) {
-    $$system("git subtree add --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash")
+# PLANNED TODOS:
+#   1:  Das Repository wird repariert bwz. neu geklont. Unabhaengig vom WAIT.
+#   2:  Wenn der WAIT-Button aktiv ist, dann wird ein Repository repariert (neu
+#       geklont), aber zusaetzlich werden alle verfuegbaren Dateien als neu
+#       angesehen und die entsprechenden Aktionen durchgefuehrt: tariff-files
+#       spiegeln, json-files laden und dc laden. Also VORSICHT: das repository
+#       muss in diesem fall wirklich in ordnung sein.
+#   3:  Wurde keine Datei geaendert, kein initiales Clone und der WAIT-button
+#       nicht aktiv, so (passiert natuerlich nichts) kann man davon ausgehen,
+#       dass es sich um ein automatisches Update handelt. Dann koennte man im
+#       ISMAS eine entsprechende Meldung anzeigen als Teil von SEND-LAST-VERSION.
+#       Wenn der WAIT-button aktiv ist, dann werden zumindest die opkg-commands
+#       ausgefuehrt.
+#   4:  rsync: immer alle Dateien soiegeln (bis auf opkg-commands)
+#   5:  Falls das Tool mal abstuerzt, dann einen Signal-Handler (fuer TERM)
+#       installieren, sodass zumnidest SEND-LAST-VERSION mit rausgeht.
+#   6:  rsync: explizites Binary, nicht das in busybox enthaltene.
+#   7:  Ein ini-File oder sowas.
+
+win32 {
+    BUILD_DATE=$$system("date /t")
+    BUILD_TIME=$$system("time /t")
 } else {
-    # $$system("git subtree pull --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash")
+    BUILD_DATE=$$system("date +%d-%m-%y")
+    BUILD_TIME=$$system("date +%H:%M:%S")
 }
 
-# You can make your code fail to compile if it uses deprecated APIs.
-# In order to do so, uncomment the following line.
-#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+GIT_COMMIT=$$system("git log -1 --format=oneline | cut -d' ' -f1")
+
+EXTENDED_VERSION="$${VERSION}-$${GIT_COMMIT}"
+
+INCLUDEPATH += plugins
+
+CONFIG += c++17
+# CONFIG -= app_bundle
+
+DEFINES+=APP_VERSION=\\\"$$VERSION\\\"
+DEFINES+=APP_BUILD_DATE=\\\"$$BUILD_DATE\\\"
+DEFINES+=APP_BUILD_TIME=\\\"$$BUILD_TIME\\\"
+DEFINES+=APP_EXTENDED_VERSION=\\\"$$EXTENDED_VERSION\\\"
+
+# keep comments, as /* fall through */
+QMAKE_CXXFLAGS += -C
+QMAKE_CXXFLAGS += -g
+QMAKE_CXXFLAGS += -Wno-deprecated-copy
 
 contains( CONFIG, PTU5 ) {
     greaterThan(QT_MAJOR_VERSION, 4): QT += serialport
     CONFIG += link_pkgconfig
     lessThan(QT_MAJOR_VERSION, 5):   PKGCONFIG += qextserialport
-    QMAKE_CXXFLAGS += -std=c++11   # for GCC >= 4.7
-    QMAKE_CXXFLAGS += -Wno-deprecated-copy
+    QMAKE_CXXFLAGS += -O2 -std=c++17   # for GCC >= 4.7
+    # QMAKE_CXXFLAGS += -Wno-deprecated-copy
     ARCH = PTU5
     DEFINES+=PTU5
 }
+contains( CONFIG, PTU5_YOCTO ) {
+    greaterThan(QT_MAJOR_VERSION, 4): QT += serialport
+    QMAKE_CXXFLAGS += -std=c++17   # for GCC >= 4.7
+    # QMAKE_CXXFLAGS += -Wno-deprecated-copy
+    PTU5BASEPATH = /opt/devel/ptu5
+    ARCH = PTU5
+    DEFINES+=PTU5
+
+    # add qmqtt lib
+    #LIBS += -lQt5Qmqtt
+}
 contains( CONFIG, DesktopLinux ) {
     greaterThan(QT_MAJOR_VERSION, 4): QT += serialport
     lessThan(QT_MAJOR_VERSION, 5):    CONFIG += extserialport
     # QMAKE_CC = ccache $$QMAKE_CC
     # QMAKE_CXX = ccache $$QMAKE_CXX
-    QMAKE_CXXFLAGS += -std=c++11
-    QMAKE_CXXFLAGS += -Wno-deprecated-copy
+    QMAKE_CXXFLAGS += -std=c++17
+    # QMAKE_CXXFLAGS += -Wno-deprecated-copy
     linux-clang {  QMAKE_CXXFLAGS += -Qunused-arguments   }
     ARCH = DesktopLinux
     DEFINES+=DesktopLinux
@@ -51,23 +141,39 @@ contains( CONFIG, DesktopLinux ) {
 
 SOURCES += \
         main.cpp \
+        progress_event.cpp \
+        update_dc_event.cpp \
+        mainwindow.cpp \
+        utils.cpp \
         update.cpp \
-        message_handler.cpp
+        git/git_client.cpp \
+        ismas/ismas_client.cpp \
+        process/command.cpp \
+        message_handler.cpp \
+        worker.cpp
 
 HEADERS += \
         update.h \
+        progress_event.h \
+        update_dc_event.h \
+        utils.h \
+        mainwindow.h \
+        git/git_client.h \
+        apism/ismas_data.h \
+        ismas/ismas_client.h \
+        process/command.h \
         message_handler.h \
-        DCPlugin/include/interfaces.h
+        worker.h \
+        plugins/interfaces.h
 
-OTHER_FILES += \
-    /opt/app/tools/atbupdate/update_log.csv
+FORMS += \
+    mainwindow.ui
 
-# https://blog.developer.atlassian.com/the-power-of-git-subtree/?_ga=2-71978451-1385799339-1568044055-1068396449-1567112770
-# git subtree add --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash
-# git subtree pull --prefix DCPlugin https://git.mimbach49.de/GerhardHoffmann/DCPlugin.git master --squash
-include(./DCPlugin/DCPlugin.pri)
 
-# Default rules for deployment.
+##########################################################################################
+# for running program on target through QtCreator
+contains( CONFIG, PTU5 ) {
    qnx: target.path = /tmp/$${TARGET}/bin
-else: unix:!android: target.path = /opt/$${TARGET}/bin
+   else: unix:!android: target.path = /opt/app/tools/atbupdate/
    !isEmpty(target.path): INSTALLS += target
+}

allgemein.txt

@@ -0,0 +1,126 @@
+0:
+    Zunaechst wir immer nachgesehen, ob das Repository bereits geklont wurde.
+    Wenn nein, dann wird geklont. Im Master-Branch befinden sich Dateinen, die
+    in allen anderen Branches gemeinsam genutzt werden. Das sollte wohl auf
+    jeden Fall fuer den DeviceController gelten.
+1:
+    Anfrage bei ISMAS ob neue Daten da sind. Hier faengt die ganze Sache an.
+    Da man nicht weiss, on ISMAS ueberhaupt antworten wird braucht es einen
+    Timer. Man kann die Sache dann auch gleich mehrfach versuchen.
+
+    Die Anfrage geht also per Signal an den Apism-Client. Im Signal wird der
+    Zustand mitgegeben:
+
+        ISMAS_UPDATE_REQUEST_PENDING
+
+    und im Slot dann entsprechend uebernommen. Der Timer sollte nicht im Worker
+    stehen, sondern im Apism-Client. Der Worker sollte damit nicht belastet
+    sein. Der wird dann vom Apism-Client entsprechend benachrichtigt.
+
+        ISMAS_UPDATE_REQUEST_FAILURE
+            ISMAS_UPDATE_REQUEST_TIMEOUT
+        ISMAS_UPDATE_REQUEST_SUCCESS
+
+    Im 1./2.Fall wird dann ein Fehlerhandling durchgefuehrt. Insbesondere
+    wird Apism ueber den DB-Kanal darueber informiert (U0003). Am Ende wie
+    dann wie immer SendCmdVersion und beenden der Applikation.
+
+    Im Erfolgsfall muss in der Antwort der Branch enthalten sein, fuer den das
+    Update durchgefuhrt werden soll. Das ist auch bereits so (Location).
+
+    Ein Sonderfall waere der -m-Modus, da hier niemand auf der ISMAS-Seite
+    aktiv eingreift. Hier braucht es dann einen Ubergabeparameter an 
+    ATBUpdateTool: --branch-name
+
+    Normalfall ist aber die Aktivierung via ISMAS. Dann muss der in der Antwort
+    enthaltene Branch zunaechst ausgecheckt werden.
+2: 
+    Dazu wird ein entsprechendes Signal an den GitClient gesandet.
+        
+        GIT_CHECKOUT_BRANCH_REQUEST
+
+    Der GitClient sieht jetzt erstmal nach, ob es diesen Branch ueberhaupt
+    gibt.
+
+        Falls nein:    
+
+        GIT_CHECKOUT_BRANCH_REQUEST_FAILURE
+            BRANCH_NOT_EXIST
+ 
+        Falls ja:
+            der GitClient versucht nun den Branch auszuchecken. 
+            Geht das gut?
+            Falls nein:
+
+                GIT_CHECKOUT_BRANCH_REQUEST_FAILURE
+                    BRANCH_CHECKOUT_ERROR
+
+            Falls ja:
+                GIT_CHECKOUT_BRANCH_REQUEST_SUCCESS
+                    -> eventl. koennte man den Namen des Branches mitgeben
+
+
+        Signal an den Worker. Im entsprechenden Slot wird jetzt der eigentliche
+        UpdateProzess angeworfen.
+ 3:
+    Mittels git fetch werden jetzt die Aenderungen ermittelt.
+
+        GIT_FETCH_UPDATES_REQUEST
+        
+        GIT_FETCH_UPDATES_REQUEST_FAILURE
+            -> Worker informieren damit Fehlerbehandlung aktiviert wird
+        GIT_FETCH_UPDATES_REQUEST_SUCCESS
+
+        GIT_DIFF_UPDATES
+
+        Die Liste der geaenderten Dateien geht an den Worker. Der kann jetzt
+        noch Test machen, ob das Sinn macht. Evtl. eine Statusmeldung ausgeben
+        drueber was gleich passieren wird.
+4:
+    Mittels git merge/pull werden nun die Dateien tatsaechlich im Branch 
+    aktualisiert.
+
+        GIT_PULL_UPDATES_REQUEST
+        GIT_PULL_UPDATES_REQUEST_FAILURE
+            -> Worker informieren damit Fehlerbehandlung aktiviert wird
+        GIT_PULL_UPDATES_REQUEST_SUCCESS
+            -> Worker informieren
+
+    Sind die Daten vorhanden, dann werden sie mittels rsync ins Dateisystem
+    kopiert.
+
+        RSYNC_UPDATES 
+        RSYNC_UPDATES_FAILURE
+        RSYNC_UPDATES_SUCCESS
+
+    Fuer jede kopierte Datei geht eine Nachricht raus ans ISMAS.
+5:
+    Sind die Daten dann kopiert, so werden sie auf den DC kopiert (falls
+    notwendig): hier gehen dann wieder Nachrichten an ISMAS raus:
+
+        DC_UPDATE 
+        DC_UPDATE_FAILURE
+        DC_UPDATE_SUCCESS
+
+        JSON_UPDATE
+        JSON_UPDATE_FAILURE
+        JSON_UPDATE_SUCCESS
+        
+        Hier fuer jedes Json-File.
+
+    Schliesslich noch eine Zusammenfasung an ISMAS:
+
+        ISMAS_UPDATE_INFO_CONFIRM
+        ISMAS_UPDATE_INFO_CONFIRM_FAILURE
+            -> Worker informieren damit Fehlerbehandlung aktiviert wird
+        ISMAS_UPDATE_INFO_CONFIRM_SUCCESS
+
+    und schliesslich der abschliessende Status an ISMAS zurueckgemeldet:
+
+        ISMAS_CURRENT_PSA_STATUS_CONFIRM
+        ISMAS_CURRENT_PSA_STATUS_CONFIRM_FAILURE
+        ISMAS_CURRENT_PSA_STATUS_CONFIRM_SUCCESS
+
+    
+
+

apism/ismas_data.h

@@ -0,0 +1,137 @@
+#ifndef ISMASDATA_H
+#define ISMASDATA_H
+
+#include <QJsonObject>
+#include <QJsonArray>
+
+
+
+
+namespace ISMAS {
+
+    struct TransferData : public QJsonObject {
+        struct : public QJsonObject {
+            QJsonValue tariffId;
+            QJsonValue group;
+            QJsonValue zone;
+        } device;
+
+        struct : public QJsonObject {
+            QJsonValue state;
+            QJsonValue uid;
+            QJsonValue seq_tick_number;
+            QJsonValue timestamp;
+            QJsonValue userText;
+            QJsonValue userTextType;
+        } transaction;
+
+        struct : public QJsonObject {
+            // TODO: check what is really used at the moment
+            QJsonValue id;          // unique article id
+            QJsonValue name;        // name
+            QJsonValue price;       // price in cent
+            QJsonValue currency;    //
+            QJsonValue startTime;   // start time
+            QJsonValue endTime;     // end time
+            QJsonValue userText;    // additional info
+            QJsonValue parkingTime;
+            QJsonValue printText;
+            // QJsonValue discount;
+        } item;
+
+        struct : public QJsonObject {
+            struct : public QJsonObject {
+                QJsonValue coins;     // total amount of coins value
+                // QJsonValue notes;     // total amount of notes value
+                QJsonValue overpaid;  // in cent
+                QJsonValue currency;
+                QJsonValue change;
+            } cash;
+
+            struct : public QJsonObject {
+                QJsonValue cardNumber;
+                QJsonValue value;           // buchungsbetrag
+                QJsonValue cardType;
+                QJsonValue currency;
+                QJsonValue tid;
+                QJsonValue tresult;
+            } card;
+
+            struct : public QJsonObject {
+                QJsonValue cardNumber;
+                QJsonValue cardType;
+                QJsonValue value;
+                QJsonValue valueOld;
+                QJsonValue valueNew;
+                QJsonValue time;
+                QJsonValue timeOld;
+                QJsonValue timeNew;
+            } prePaidCard;
+        } payment;
+
+        struct : public QJsonObject {
+            QJsonValue delivery;    // PRINT, OnlineTicket
+            QJsonValue result;      // SUCCESS, ERROR
+            QJsonValue errorCode;   // 0=OK, 1=...
+            QJsonValue errorMsg;
+        } result;
+    };
+
+
+    struct AccountData : public QJsonObject {
+        struct : public QJsonObject {
+            QJsonValue UID;
+            QJsonValue ChangeNumber;
+            QJsonValue Process;         // Vorgang
+            QJsonValue startDateTime;
+            QJsonValue endDateTime;
+            QJsonValue startHash;
+            QJsonValue endHash;
+
+            struct : public QJsonObject {
+                QJsonValue value;          // coin value
+                QJsonValue numberOfCoins;  // number of coins
+                QJsonValue currency;
+            } coin;
+
+        } coinBox;                  // Münzkasse
+    };
+
+
+    struct EventData : public QJsonObject {
+        struct : public QJsonObject {
+            QJsonValue eventID;
+            QJsonValue deviceName;
+            QJsonValue reason;
+            QJsonValue event;
+            QJsonValue eventState;
+            QJsonValue timeStamp;
+            QJsonValue parameter;
+            QJsonValue secondLevelInfo;
+        } machineEvent;                  //
+    };
+
+    struct StateData : public QJsonObject {
+        QJsonValue Timestamp;
+        QJsonArray HW_States;
+        struct : public QJsonObject {
+            QJsonValue name;
+            QJsonValue value;
+            QJsonValue unit;
+        } machineState;                  //
+    };
+
+
+    enum class REQUEST : quint8 {
+        NO_REQUEST,
+        START,
+        STOP,
+        PING,
+        SELF,
+        ISMAS_PARAMETER
+    };
+}
+
+
+
+#endif // ISMASDATA_H

doc/update_ptu.tex

@@ -2,6 +2,7 @@
 \usepackage{euler}
 \usepackage[english]{babel}
 \usepackage{lipsum}
+\usepackage{multirow}
 \usepackage[colorlinks=true, urlcolor=blue, linkcolor=red]{hyperref}
 \newcounter{Chapcounter}
 \newcommand\showmycounter{\addtocounter{Chapcounter}{1}\themycounter}
@@ -19,13 +20,15 @@
 
 \begin{document}
 \maketitle
-\chapter{Introduction}
+% \chapter{Introduction}
 \section{Motivation}
+
 The two main components of a PSA are
 \begin{itemize}
     \item PTU software.
     \item Device controller (DC) firmware.
 \end{itemize}
+
 While the DC firmware is basically the same for each PSA (even for different
 customers), the PTU software is highly dependent on customer requirements.\par
 Hence, each customer is assigned an own git-repository, which will be loaded
@@ -36,6 +39,7 @@
 script [{\bf \nameref{UpdateScript}}]), work together to finish a PSA installation.\par 
     
 \section{PSA: Initial configuration}
+
 For the initial configuration, a PSA loads a customer-specific git-repository,
 which structure is detailed below [{\bf \nameref{repostructure}}].\par
 The "git clone" for the repository is done by the UpdateScript [{\bf \nameref{UpdateScript}}].
@@ -46,17 +50,28 @@
     }
 \end{center}
 which will be interpreted by the UpdateController [{\bf \nameref{UpdateTool}}].
-        The structure of {\bf update\_log.csv} is detailed below [{\bf \nameref{updatelogcsv}}].\par
-        Each line of {\bf update\_log.csv} represents a command for the UpdateController,
+The structure of [{\bf \nameref{updatelogcsv}}] is detailed below.\par
+Each line of update\_log.csv represents a command for the UpdateController,
 which will either download certain files to the DC or execute some
 \href{https://openwrt.org/docs/guide-user/additional-software/opkg}{opkg}
 commands [{\bf \nameref{opkg}}].
         
 \section{PSA: Update}
    
-    \newpage
+The update of a PSA is basically managed by \href{https://git-scm.com/}{git}, a
+free and open source distributed version control system. Like many other Version
+Control Systems, git has a way to fire off custom scripts when certain important
+actions occur, so-called \href{https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks}{hooks}.
+The hooks used for a PSA update are called {\bf post-checkout} and {\bf post-merge}.\par
+The post-checkout hook is called when checking out some branch of the customer-repository
+(for instance when cloning the customer repository for the first time). In contrast,
+the post-merge hook is called when a \href{https://www.git-scm.com/docs/git-pull}{git pull}
+operation has been issued (more precisely, a \href {https://www.git-scm.com/docs/git-fetch}{git-fetch}
+followed by a \href{https://www.git-scm.com/docs/git-merge}{git-merge}).\par
+Both hooks update the file [{\bf \nameref{updatelogcsv}}], which is interpreted
+by the UpdateController in a second step.
     
-\chapter{Update-Tool "up\_dev\_ctrl"}
+% \chapter{Update-Tool "up\_dev\_ctrl"}
     \section{up\_dev\_ctrl}
     \label{UpdateTool}
 
@@ -79,7 +94,7 @@
 
     \newpage
 
-\chapter{Update-Script "update\_psa"}
+% \chapter{Update-Script "update\_psa"}
     \section{update\_psa}
     \label{UpdateScript}
 
@@ -98,13 +113,60 @@
         \end{itemize}
     \newpage
 
-\chapter{Annex}
+%\chapter{Annex}
     \section{Structure of a customer git-repository}
     \label{repostructure}
+    \subsection{The post-checkout hook}
+TODO: checkout\_history
+    \subsection{The post-merge hook}
+They are both located under the {\bf .githooks}-directory
     
-    \section{Structure of "update\_log.csv"}
+\section{update\_log.csv}
 \label{updatelogcsv}
+    \begin{table}[h!]
+        \begin{center}
+        \caption{Initial state of update\_log.csv}
+        \label{tab:initial_state}
+        \begin{tabular}{llll}
+            \textbf{Request} & \textbf{Name} & \textbf{Date} & \textbf{Status}\\
+            \hline
+            \multicolumn{4}{c}{}\\
+            DOWNLOAD & /etc/dc/dc2c4.21.bin                & 2023-05-01T12:00:00 & N/A\\
+            DOWNLOAD & /etc/psa\_config/DC2C\_print01.json & 2023-05-01T12:00:00 & N/A\\
+            DOWNLOAD & /etc/psa\_config/DC2C\_print02.json & 2023-05-01T12:00:00 & N/A\\
+            DOWNLOAD & /etc/psa\_config/DC2C\_print03.json & 2023-05-01T12:00:00 & N/A\\
+            DOWNLOAD & /etc/psa\_config/DC2C\_print04.json & 2023-05-01T12:00:00 & N/A\\
+            DOWNLOAD & /etc/psa\_config/DC2C\_print29.json & 2023-05-01T12:00:00 & N/A\\
+            DOWNLOAD & /etc/psa\_config/DC2C\_print32.json & 2023-05-01T12:00:00 & N/A\\
+            EXECUTE  & opkg update                         & 2023-05-01T12:00:00 & N/A\\
+        \end{tabular}
+        \end{center}
+    \end{table}    
+
+    \begin{table}[h!]
+        \begin{center}
+        \caption{State of update\_log.csv after updating}
+        \label{tab:initial_state}
+        \begin{tabular}{llll}
+            \textbf{Request} & \textbf{Name} & \textbf{Date} & \textbf{Status}\\
+            \hline
+            \multicolumn{4}{c}{}\\
+            DONE & /etc/dc/dc2c4.21.bin                & 2023-05-01T12:00:00 & N/A\\
+            DONE & /etc/psa\_config/DC2C\_print01.json & 2023-05-01T12:00:00 & N/A\\
+            DONE & /etc/psa\_config/DC2C\_print02.json & 2023-05-01T12:00:00 & N/A\\
+            DONE & /etc/psa\_config/DC2C\_print03.json & 2023-05-01T12:00:00 & N/A\\
+            DONE & /etc/psa\_config/DC2C\_print04.json & 2023-05-01T12:00:00 & N/A\\
+            DONE & /etc/psa\_config/DC2C\_print29.json & 2023-05-01T12:00:00 & N/A\\
+            DONE & /etc/psa\_config/DC2C\_print32.json & 2023-05-01T12:00:00 & N/A\\
+            DONE & opkg update                         & 2023-05-01T12:00:00 & N/A\\
+        \end{tabular}
+        \end{center}
+    \end{table}    
+
+    \newpage
     
     \section{The package manager "opkg"}
     \label{opkg}
+
+    \section{Known problems}
 \end{document}

git/git_client.cpp

@@ -0,0 +1,434 @@
+#include "git_client.h"
+#include "update.h"
+#include "worker.h"
+#include "utils.h"
+
+#include <QRegularExpression>
+#include <QDebug>
+#include <QDir>
+
+
+GitClient::GitClient(QString const &customerNrStr,
+                     QString const &customerRepository,
+                     QString const &workingDirectory,
+                     QString const &branchName,
+                     QObject *parent)
+  : QObject(parent)
+  , m_worker(qobject_cast<Worker *>(parent))
+  , m_repositoryPath(QString("https://git.mimbach49.de/GerhardHoffmann/%1.git").arg(customerNrStr))
+  , m_customerNr(customerNrStr)
+  , m_workingDirectory(workingDirectory)
+  , m_branchName(branchName)
+  , m_customerRepository(customerRepository) {
+    if (!m_worker) {
+        qCritical() << "ERROR CASTING PARENT TO WORKER FAILED";
+    }
+}
+
+bool GitClient::gitCloneCustomerRepository() {
+    /*  Blobless clone
+        ==============
+
+        When using the --filter=blob:none option, the initial git clone will
+        download all reachable commits and trees, and only download the blobs
+        for commits when you do a git checkout. This includes the first checkout
+        inside the git clone operation.
+
+        The important thing to notice is that we have a copy of every blob at
+        HEAD but the blobs in the history are not present. If your repository
+        has a deep history full of large blobs, then this option can
+        significantly reduce your git clone times. The commit and tree data is
+        still present, so any subsequent git checkout only needs to download
+        the missing blobs. The Git client knows how to batch these requests to
+        ask the server only for the missing blobs.
+
+        Further, when running git fetch in a blobless clone, the server only
+        sends the new commits and trees. The new blobs are downloaded only
+        after a git checkout. Note that git pull runs git fetch and then git
+        merge, so it will download the necessary blobs during the git merge
+        command.
+
+        When using a blobless clone, you will trigger a blob download whenever
+        you need the contents of a file, but you will not need one if you only
+        need the OID (object-id) of a file. This means that git log can detect
+        which commits changed a given path without needing to download extra
+        data.
+
+        This means that blobless clones can perform commands like git
+        merge-base, git log, or even git log -- <path> with the same performance
+        as a full clone.
+
+        Commands like git diff or git blame <path> require the contents of the
+        paths to compute diffs, so these will trigger blob downloads the first
+        time they are run. However, the good news is that after that you will
+        have those blobs in your repository and do not need to download them a
+        second time. Most developers only need to run git blame on a small
+        number of files, so this tradeoff of a slightly slower git blame command
+        is worth the faster clone and fetch times.
+
+        Note: git v2.18 does not support treeless clones: --filter=tree:0.
+     */
+
+    // Note: for some reason it is necessary to pass "--progress ---v",
+    // otherwise QProcess returns an error of 128 = 0x80 for the command.
+
+    QString gitCommand("git clone --progress -vvv --filter=blob:none ");
+    gitCommand += m_repositoryPath;
+    Command c(gitCommand);
+
+    qInfo() << "IN CURRENT WD" << m_workingDirectory
+            << "CLONE VIA COMMAND" << gitCommand;
+
+    if (c.execute(m_workingDirectory)) { // execute the command in wd
+        QString const result = c.getCommandResult();
+        if (!result.isEmpty()) {
+            // Cloning into 'customer_281'...\n
+            int customer = -1;
+            int cloning = result.indexOf("Cloning", 0, Qt::CaseInsensitive);
+            if (cloning != -1) {
+                customer = result.indexOf("customer_", cloning, Qt::CaseInsensitive);
+                if (customer != -1) {
+                    QString customerNr = result.mid(customer);
+                    static constexpr char const ch = '\'';
+                    int i = customerNr.indexOf(QChar(ch));
+                    if (i != -1) {
+                        if ((customerNr = customerNr.mid(0, i)) == m_customerNr) {
+                            qInfo() << "CLONING" << m_repositoryPath << "OK";
+                            return true;
+                        }
+                        Utils::printCriticalErrorMsg(
+                            QString("ERROR CLONE RESULT HAS WRONG CUSTOMER-NR. (%1 != %2) CLONE_RESULT=%3")
+                                .arg(customerNr)
+                                .arg(m_customerNr)
+                                .arg(result));
+                        return false;
+                    }
+                }
+            }
+            Utils::printCriticalErrorMsg(
+                QString("ERROR CLONE RESULT HAS WRONG FORMAT. CLONING=%1 CUSTOMER=%2 CLONE_RESULT=%3")
+                    .arg(cloning)
+                    .arg(customer)
+                    .arg(result));
+            return false;
+        }
+        Utils::printCriticalErrorMsg("ERROR CLONE RESULT IS EMPTY");
+    }
+    return false;
+}
+
+bool GitClient::copyGitConfigFromMaster() { // only allowed when called in
+                                            // master branch (???)
+    if (QDir(m_customerRepository).exists()) {
+        QString const cp = QString("cp .gitconfig .git/config");
+        Command c("bash");
+        if (c.execute(m_customerRepository, QStringList() << "-c" << cp)) {
+            qInfo() << "cp .gitconfig .git/config OK";
+            return true;
+        }
+        qCritical() << "ERROR cp .gitconfig .git/config";
+    }
+    return false;
+}
+
+QStringList GitClient::gitBranchNames() {
+    // git config --global pager.branch false
+    QStringList bNames;
+    if (QDir(m_customerRepository).exists()) {
+        QString gitCommand("git branch -a");
+        Command c(gitCommand);
+        if (c.execute(m_customerRepository)) {
+            QString const result = c.getCommandResult();
+            return result.split('\n');
+        }
+    }
+    return bNames;
+}
+
+bool GitClient::gitCheckoutBranch() {
+    // TODO: nachsehen, ob der Branch ueberhaupt existiert
+
+    if (QDir(m_customerRepository).exists()) {
+        int zoneNr = Utils::read1stLineOfFile("/mnt/system_data/zone_nr");
+        m_branchName = (zoneNr != 0)
+            ? QString("zg1/zone%1").arg(zoneNr) : "master";
+
+        QString gitCommand("git checkout ");
+        gitCommand += m_branchName;
+
+        Command c(gitCommand);
+        return c.execute(m_customerRepository); // execute command in customerRepo
+    }
+    Utils::printCriticalErrorMsg(QString("ERROR ") + m_customerRepository + " DOES NOT EXIST");
+    return false;
+}
+
+bool GitClient::gitCloneAndCheckoutBranch() {
+    qInfo() << "CLONE" << m_repositoryPath << "AND CHECKOUT" << m_branchName;
+    if (gitCloneCustomerRepository()) {
+        //if (copyGitConfigFromMaster()) {
+            if (gitCheckoutBranch()) {
+                return true;
+            } else {
+                // TODO
+            }
+        //}
+    }
+    Utils::printCriticalErrorMsg(QString("CLONE ") + m_repositoryPath + " AND CHECKOUT FAILED");
+    return false;
+}
+
+QStringList GitClient::gitShowReason(QString branchName) {
+    QStringList lst;
+    if (QDir(m_customerRepository).exists()) {
+        // %h: commit (short form)
+        // %s: commit message
+        // %cI: commit date, strict ISO 8601 format
+        // Note: branch with branchName has to exist: format zg1/zone1
+        Command c(QString("git show origin/%1 -s --format=\"c=%h m=%s d=%cI\"").arg(branchName));
+        if (c.execute(m_customerRepository)) {
+            QString const s = c.getCommandResult().trimmed();
+            int const c = s.indexOf("c=");
+            int const m = s.indexOf("m=");
+            int const d = s.indexOf("d=");
+
+            QString msg = IsmasClient::getReasonForLastSendVersion();
+            QString commit{""}, date{""};
+
+            if (c != -1) {
+                int start = c + 2;
+                if (m >= start) {
+                    int length = m - start;
+                    commit = s.mid(start, length).trimmed();
+
+                    start = m + 2;
+                    if (d >= start) {
+                        length = d - start;
+                        msg += " (";
+                        msg = s.mid(start, length).trimmed();
+                        msg += ")";
+
+                        start = d + 2;
+                        date = s.mid(start);
+                    }
+                }
+
+                if (!commit.isEmpty() && !msg.isEmpty() && !date.isEmpty()) {
+                    lst << commit << msg << date;
+                }
+            }
+        }
+    } else {
+        qCritical() << "CUSTOMER_REPOSITORY" << m_customerRepository
+                    << "DOES NOT EXIST";
+    }
+    return lst;
+}
+
+/*
+ Zu beachten: wird eine datei neu hinzugefuegt (git add/commit) dann aber gleich
+ wieder geloscht, so wird sie im diff nicht angezeigt.
+ */
+std::optional<QStringList> GitClient::gitDiff(QString const &commits) {
+    if (QDir(m_customerRepository).exists()) {
+        // 409f198..6c22726
+        QString gitCommand("git diff --compact-summary ");
+        gitCommand += commits;
+
+        Command c(gitCommand);
+        if (c.execute(m_customerRepository)) { // execute command in local customerRepo
+            QString s = c.getCommandResult().trimmed();
+            Utils::printInfoMsg("GIT DIFF RESULT " + s);
+
+            QStringList lines = Update::split(s, '\n');
+            QStringList fileNames;
+            // each line has the format "etc/psa_config/DC2C_print01.json | 1 +
+            // or the format            "etc/psa_config/DC2C_print01.json (new) | 1 +
+            // the filenames are relativ to the repository
+            for (int i = 0; i < lines.size(); ++i) {
+                QString const &line = lines.at(i);
+                int newIndex = line.indexOf("(new");    // for new files
+                int goneIndex = line.indexOf("(gone");  // for removed files
+                int modeIndex = line.indexOf("(mode");
+                int pipeIndex = line.indexOf('|');
+                if (newIndex != -1) {
+                    QString file = line.left(newIndex).trimmed();
+                    qInfo() << "FILE (NEW)" << file;
+                    fileNames << file;
+                } else
+                if (modeIndex != -1) {
+                    QString const file = line.left(modeIndex).trimmed();
+                    qInfo() << "FILE (MODE)" << file;
+                    fileNames << file;
+                } else
+                if (goneIndex != -1) {
+                    QString const file = line.left(goneIndex).trimmed();
+                    qCritical() << "FILE (GONE)" << file;
+                } else
+                if (pipeIndex != -1) {
+                    QString const file = line.left(pipeIndex).trimmed();
+                    qInfo() << "FILE (PIPE)" << file;
+                    fileNames << file;
+                }
+            }
+            if (!fileNames.isEmpty()) {
+                return fileNames;
+            }
+        }
+    }
+    return std::nullopt;
+}
+
+bool GitClient::gitFsck() {
+    bool r = false;
+    if (QDir(m_customerRepository).exists()) {
+        Command c("git fsck");
+        if ((r = c.execute(m_customerRepository)) == false) {
+            QString const &s = c.getCommandResult().trimmed();
+            Utils::printCriticalErrorMsg(QString("GIT FSCK FAILED: %1").arg(s));
+        }
+    }
+    return r;
+}
+/*
+ Hat sich nichts geaendert, so werden auch keine Commits <>..<> angezeigt
+ */
+std::optional<QString> GitClient::gitPull() {
+    if (QDir(m_customerRepository).exists()) {
+        qInfo() << "BRANCH NAME" << m_branchName;
+
+        Command c("git pull");
+        if (c.execute(m_customerRepository)) {
+            QString const s = c.getCommandResult().trimmed();
+            if (!s.isEmpty()) {
+                QStringList lines = Update::split(s, '\n');
+                worker()->CONSOLE(lines) << Worker::UPDATE_STEP::UPDATE_REPOSITORY;
+                if (!lines.empty()) {
+                    static const QRegularExpression alreadyUpToDate("^\\s*Already\\s+up\\s+to\\s+date.*$");
+                    if (std::none_of(lines.cbegin(), lines.cend(),
+                        [](QString const &s) { return s.contains(alreadyUpToDate); })) {
+                        int zoneNr = Utils::read1stLineOfFile("/mnt/system_data/zone_nr");
+                        m_branchName = (zoneNr != 0) ? QString("zg1/zone%1").arg(zoneNr) : "master";
+                        // lines can look like this:
+                        // From https://git.mimbach49.de/GerhardHoffmann/customer_281
+                        //   41ec581..5d25ac3  master     -> origin/master
+                        //   ff10f57..43530a1  zg1/zone1  -> origin/zg1/zone1
+                        //   6ed893f..5d9882c  zg1/zone2  -> origin/zg1/zone2
+                        //   4384d17..77045d8  zg1/zone3  -> origin/zg1/zone3
+                        //   89d2812..36a0d74  zg1/zone5  -> origin/zg1/zone5
+                        bool found = false;
+                        for (int i=0; i < lines.size(); ++i) {
+                            if (lines.at(i).contains(m_branchName)) {
+                                found = true;
+                                // 409f198..6c22726  zg1/zone1  -> origin/zg1/zone1
+                                static QRegularExpression re("(^\\s*)([0-9A-Fa-f]+..[0-9A-Fa-f]+)(.*$)");
+                                QRegularExpressionMatch match = re.match(lines.at(i));
+                                if (match.hasMatch()) {
+                                    if (re.captureCount() == 3) { // start with full match (0), then the other 3 matches
+                                        QString const matchCaptured = match.captured(2);
+                                        worker()->CONSOLE(QStringList(matchCaptured)) << Worker::UPDATE_STEP::UPDATE_REPOSITORY;
+                                        return matchCaptured;
+                                    } else {
+                                        QStringList lst(QString("(wrong capture count (%1)").arg(re.captureCount()));
+                                        worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+                                    }
+                                } else {
+                                    QStringList lst("no regex-match for commits");
+                                    worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+                                }
+                            }
+                        }
+                        if (!found) {
+                            QStringList lst(QString("unknown branch name ") + m_branchName);
+                            worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+                        }
+                    } else {
+                        return "Already up to date";
+                    }
+                } else {
+                    QStringList lst(QString("WRONG FORMAT FOR RESULT OF 'GIT PULL' ") + s);
+                    worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+                }
+            } else {
+                QStringList lst("EMPTY RESULT FOR 'GIT PULL'");
+                worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+            }
+        }
+    } else {
+        QStringList lst(QString("REPOSITORY ") + m_customerRepository + " DOES NOT EXIST");
+        worker()->GUI(lst) << (worker()->CONSOLE(lst) << Worker::UPDATE_STEP::UPDATE_REPOSITORY_FAILURE);
+    }
+    return std::nullopt;
+}
+
+std::optional<QStringList> GitClient::gitMerge() {
+    Command c("git merge");
+    if (c.execute(m_workingDirectory)) {
+        QString s = c.getCommandResult();
+        QStringList lst = Update::split(s, '\n');
+        return lst;
+    }
+    return std::nullopt;
+}
+
+QString GitClient::gitLastCommit(QString fileName) {
+    if (QDir(m_customerRepository).exists()) {
+        QString const filePath
+            = QDir::cleanPath(m_customerRepository + QDir::separator() + fileName);
+        if (QFile(filePath).exists()) {
+            QString const gitCommand = QString("git log %1 | head -n 1").arg(fileName);
+            Command c("bash");
+            if (c.execute(m_customerRepository, QStringList() << "-c" << gitCommand)) {
+                QString const r = c.getCommandResult();
+                int const idx = r.indexOf("commit ");
+                if (idx != -1) {
+                    return r.mid(idx + 8).trimmed();
+                }
+            }
+        }
+    }
+    return "";
+}
+
+// fileName has to an absolute path
+QString GitClient::gitBlob(QString fileName) {
+    QFileInfo fi(fileName);
+    if (fi.exists()) {
+        QString const gitCommand = QString("git hash-object %1").arg(fileName);
+        Command c(gitCommand);
+        if (c.execute("/tmp")) {
+            return c.getCommandResult().trimmed();
+        }
+    }
+    return "N/A";
+}
+
+QString GitClient::gitCommitForBlob(QString blob) {
+    if (QDir(m_customerRepository).exists()) {
+        QString const gitCommand
+            = QString("git whatchanged --all --find-object=%1 | head -n 1").arg(blob);
+        Command c(gitCommand);
+        if (c.execute(m_customerRepository)) {
+            return c.getCommandResult();
+        }
+    }
+    return "";
+}
+
+bool GitClient::gitIsFileTracked(QString fName) {
+    if (QDir(m_customerRepository).exists()) {
+        QString const gitCommand
+            = QString("git ls-files --error-unmatch %1").arg(fName);
+        Command c(gitCommand);
+        return c.execute(m_customerRepository);
+    }
+    return false;
+}
+
+
+//get_commit_for_blob () {
+//    # search for the blob in all commits for the file(name) $1
+//    echo $(git log --all --pretty=format:%H -- $2   |
+//           xargs -I{} bash -c "git ls-tree {} -- $2 |
+//           grep -q $1 && echo -n {} && head -n 1")
+//}

git/git_client.h

@@ -0,0 +1,62 @@
+#ifndef GIT_CLIENT_H_INCLUDED
+#define GIT_CLIENT_H_INCLUDED
+
+#include <QObject>
+#include <QStringList>
+#include <optional>
+
+#include "process/command.h"
+#include "ismas/ismas_client.h"
+
+class Worker;
+class GitClient : public QObject {
+    Q_OBJECT
+
+    Worker *m_worker;
+    QString const m_repositoryPath;
+    QString const m_customerNr;
+    QString const m_workingDirectory;
+    QString m_branchName;
+    QString const m_customerRepository;
+
+    bool copyGitConfigFromMaster();
+
+  public:
+    explicit GitClient(QString const &customerNrStr,
+                       QString const &repositoryPath,
+                       QString const &workingDirectory = QCoreApplication::applicationDirPath(),
+                       QString const &branchName = "master",
+                       QObject *parent = 0);
+
+    bool gitCloneCustomerRepository();
+    bool gitCheckoutBranch();
+    QStringList gitBranchNames();
+
+    QString const workingDirectory() const { return m_workingDirectory; }
+    QString workingDirectory() { return m_workingDirectory; }
+
+    QString const branchName() const { return m_branchName; }
+    QString branchName() { return m_branchName; }
+
+    QString repositoryPath() { return m_repositoryPath; }
+    QString const repositoryPath() const { return m_repositoryPath; }
+
+    bool gitCloneAndCheckoutBranch();
+
+    Worker *worker() { return m_worker; }
+    Worker const *worker() const { return m_worker; }
+
+    std::optional<QString> gitPull();
+    std::optional<QStringList> gitDiff(QString const &commit);
+    std::optional<QStringList> gitMerge();
+
+    bool gitFsck();
+
+    QString gitLastCommit(QString fileName);
+    QStringList gitShowReason(QString branchName);
+    static QString gitBlob(QString fileName);
+    QString gitCommitForBlob(QString blob);
+    bool gitIsFileTracked(QString file2name);
+};
+
+#endif // GIT_CLIENT_H_INCLUDED

ismas/ismas_client.cpp

@@ -0,0 +1,942 @@
+#include "ismas/ismas_client.h"
+#include "utils.h"
+
+#include <cstring>
+#include <cstdio>
+
+#include <errno.h>
+#include <arpa/inet.h> // inet_addr()
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <string.h>
+#include <strings.h> // bzero()
+#include <sys/socket.h>
+#include <unistd.h> // read(), write(), close()
+#include <fcntl.h>
+
+
+#include <QThread>
+#include <QJsonDocument>
+#include <QJsonObject>
+
+#if 0
+########################
+# Spec vom 27.10.2023:
+# U0010 -> %-Werte
+# U0001 -> 100%
+# U0003 -> "FAIL"
+# U0002 -> "" (OK -> WAIT state reset)
+# ISMAS -> "WAIT"
+########################
+#
+# $1: EVENT: U0001 update finished: 100%
+#            U0002 reset TRG
+#            U0003 error
+#            U0010 for update process
+# $2: PERCENT : "only for ISMAS: 0-100%",
+# $3: RESULTCODE : "only for ISMAS",
+#   0: Success
+#   1: no Update nessesary
+#   2: Backup failed
+#   3: Package error/ Wrong package
+#   4: Install Error
+# $4: STEP : "running step (only for us): update_psa...",
+# $5: STEP_RESULT : "error and result text",
+# $6: VERSION : "opkg and conf info; what will be updated"
+#
+#endif
+
+#include <QDateTime>
+#include <QDebug>
+
+void IsmasClient::printDebugMessage(int port,
+                                    QString const &clientIP,
+                                    int clientPort,
+                                    QString const &message) {
+#if 0
+    Q_UNUSED(port);
+    Q_UNUSED(clientIP);
+    Q_UNUSED(clientPort);
+    Q_UNUSED(message);
+#else
+    qDebug().noquote()
+        << "\n"
+        << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
+        << "hostname ........" << "127.0.0.1"  << "\n"
+        << "port ............" << port << "\n"
+        << "local address ..." << clientIP << "\n"
+        << "local port ......" << clientPort << "\n"
+        << message;
+#endif
+}
+
+void IsmasClient::printInfoMessage(int port,
+                                   QString const &clientIP,
+                                   int clientPort,
+                                   QString const &message) {
+#if 0
+    Q_UNUSED(port);
+    Q_UNUSED(clientIP);
+    Q_UNUSED(clientPort);
+    Q_UNUSED(message);
+#else
+    qInfo().noquote()
+        << "\n"
+        << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
+        << "hostname ........" << "127.0.0.1"  << "\n"
+        << "port ............" << port << "\n"
+        << "local address ..." << clientIP << "\n"
+        << "local port ......" << clientPort << "\n"
+        << message;
+#endif
+}
+
+void IsmasClient::printErrorMessage(int port,
+                                    QString const &clientIP,
+                                    int clientPort,
+                                    QString const &message) {
+    qCritical().noquote()
+        << "\n"
+        << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
+        << "hostname ........" << "127.0.0.1"  << "\n"
+        << "port ............" << port << "\n"
+        << "local address ..." << clientIP << "\n"
+        << "local port ......" << clientPort << "\n"
+        << message;
+}
+
+std::optional<QString>
+IsmasClient::sendRequestReceiveResponse(int port, QString const &request) {
+
+    qInfo() << "REQUEST" << request;
+
+    int sockfd;
+    int r;
+    errno = 0;
+    // socket create and verification
+    if ((sockfd = ::socket(AF_INET, SOCK_STREAM, 0)) == -1) {
+        qCritical().noquote()
+            << "\n"
+            << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
+            << "SOCKET CREATION FAILED (" << strerror(errno) << ")";
+        return std::nullopt;
+    }
+
+    struct sockaddr_in servAddr;
+    bzero(&servAddr, sizeof(servAddr));
+    // assign IP, PORT
+    servAddr.sin_family = AF_INET;
+    servAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+    servAddr.sin_port = htons(port);
+    // connect the client socket to server socket
+    if ((r = ::connect(sockfd, (struct sockaddr *)(&servAddr), sizeof(servAddr))) != 0) {
+        qCritical().noquote()
+            << "\n"
+            << "SEND-REQUEST-RECEIVE-RESPONSE ..." << "\n"
+            << "CONNECTION WITH SERVER FAILED (" << strerror(r) << ")";
+        ::close(sockfd);
+        return std::nullopt;
+    }
+
+    struct sockaddr_in clientAddr;
+    bzero(&clientAddr, sizeof(clientAddr));
+    socklen_t sockLen = sizeof(clientAddr);
+
+    char clientIP[16];
+    bzero(&clientIP, sizeof(clientIP));
+    getsockname(sockfd, (struct sockaddr *)(&clientAddr), &sockLen);
+    inet_ntop(AF_INET, &clientAddr.sin_addr, clientIP, sizeof(clientIP));
+    unsigned int clientPort = ntohs(clientAddr.sin_port);
+
+    printDebugMessage(port, clientIP, clientPort, QString("CONNECTED TO SERVER"));
+
+    struct timeval tv;
+    tv.tv_sec = 10;  /* 10 secs timeout for read and write */
+
+    struct linger so_linger;
+    so_linger.l_onoff = 1;
+    so_linger.l_linger = 0;
+
+    int maxfdp1;
+    fd_set rset;
+    fd_set wset;
+
+    setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &so_linger, sizeof(so_linger));
+    // no reliable, but does not harm, as we use select() as well
+    setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
+    setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+    int flag = 1;
+    setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int));
+
+    static char buf[1024*8];
+    bzero(buf, sizeof(buf));
+    int const bytesToWrite = strlen(request.toStdString().c_str());
+    strncpy(buf, request.toStdString().c_str(), sizeof(buf)-1);
+
+    int loop = 0;
+    int bytesWritten = 0;
+    while (bytesWritten < bytesToWrite) {
+        errno = 0;
+        FD_ZERO(&wset);
+        FD_SET(sockfd, &wset);
+        maxfdp1 = sockfd + 1;
+        tv.tv_sec = 60;  /* 60 secs timeout for read and write -> APISM cuts the connection after 30s */
+        tv.tv_usec = 0;
+
+        int const w = select(maxfdp1, NULL, &wset, NULL, &tv);
+        if (w < 0) { // error
+            if (errno == EINTR) {
+                printErrorMessage(port, clientIP, clientPort,
+                    QString("INTERRUPTED BY SIGNAL (1) (") + strerror(errno) + ")");
+                continue;
+            } else {
+                printErrorMessage(port, clientIP, clientPort,
+                        QString("SELECT-ERROR (WRITE) %1(").arg(loop) + strerror(errno) + ")");
+                ::close(sockfd);
+                return std::nullopt;
+            }
+        } else
+        if (w == 0) { // timeout
+            printErrorMessage(port, clientIP, clientPort,
+                    QString("SELECT-TIMEOUT (WRITE) %1(").arg(loop) + strerror(errno) + ")");
+            if (++loop < 10) {
+                QThread::msleep(500);
+                continue;
+            }
+            ::close(sockfd);
+            return std::nullopt;
+        } else
+        if (w > 0) {
+            int n = ::sendto(sockfd, buf+bytesWritten, bytesToWrite-bytesWritten, 0, NULL, 0);
+            if (n >= 0) {
+                bytesWritten += n;
+            } else {
+                if (errno == EWOULDBLOCK) {
+                    if (++loop < 10) {
+                        QThread::msleep(500);
+                        continue;
+                    }
+                    printErrorMessage(port, clientIP, clientPort,
+                        QString("WRITE TIMEOUT %1(").arg(loop) + strerror(errno) + ")");
+                    ::close(sockfd);
+                    return std::nullopt;
+                } else
+                if (errno == EINTR) {
+                    printErrorMessage(port, clientIP, clientPort,
+                        QString("WRITE INTERRUPTED BY SIGNAL (1) (") + strerror(errno) + ")");
+                    continue;
+                }
+            }
+        }
+    }
+
+    // DO NOT USE SHUTDOWN! APISM CAN NOT COPE WITH IT
+    // errno = 0;
+    // if (shutdown(sockfd, SHUT_WR) < 0) {
+    //     printErrorMessage(port, clientIP, clientPort,
+    //        QString("CANNOT CLOSE WRITING END (") + strerror(errno) + ")");
+    // }
+
+    printInfoMessage(port, clientIP, clientPort, QString("MESSAGE SENT <<<") + buf + ">>>");
+
+    loop = 0;
+    bzero(buf, sizeof(buf));
+    int bytesToRead = sizeof(buf)-1;
+    int bytesRead = 0;
+    while (bytesRead < bytesToRead) {
+        errno = 0;
+        FD_ZERO(&rset);
+        FD_SET(sockfd, &rset);
+        maxfdp1 = sockfd + 1;
+        tv.tv_sec = 60;  /* 60 secs timeout for read and write */
+        tv.tv_usec = 0;
+
+        QString const selectStart = QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+
+        int const r = select(maxfdp1, &rset, NULL, NULL, &tv);
+        if (r < 0) { // error
+            if (errno == EINTR) {
+                printErrorMessage(port, clientIP, clientPort,
+                    QString("INTERRUPTED BY SIGNAL (2) (") + strerror(errno) + ")");
+                continue;
+            } else {
+                printErrorMessage(port, clientIP, clientPort,
+                        QString("SELECT-ERROR (READ) %1(").arg(loop) + strerror(errno) + ")");
+                ::close(sockfd);
+                return std::nullopt;
+            }
+        } else
+        if (r == 0) { // timeout
+            printErrorMessage(port, clientIP, clientPort,
+                    QString("SELECT-TIMEOUT (READ) %1(").arg(loop) + strerror(errno) + ")");
+            if (++loop < 10) {
+                QThread::msleep(500);
+                continue;
+            }
+            ::close(sockfd);
+            return std::nullopt;
+        } else
+        if (r > 0) {
+            if (FD_ISSET(sockfd, &rset)) {
+                int n = ::recvfrom(sockfd, buf+bytesRead, bytesToRead-bytesRead,
+                                   0, NULL, NULL);
+                if (n > 0) { //
+                    bytesRead += n;
+                } else
+                if (n == 0) {
+                    // The return value will be 0 when the peer has performed an orderly shutdown.
+                    printErrorMessage(port, clientIP, clientPort,
+                        QString("PEER CLOSED CONNECTION (") + strerror(errno) + ") START AT" +
+                                selectStart + " NOW " + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+                    ::close(sockfd);
+                    return std::nullopt;
+                } else
+                if (n < 0) {
+                    if (errno == EWOULDBLOCK) { // check just in case
+                        if (++loop < 10) {
+                            QThread::msleep(500);
+                            continue;
+                        }
+                        printErrorMessage(port, clientIP, clientPort,
+                                QString("READ TIMEOUT %1(").arg(loop) + strerror(errno) + ")");
+                        ::close(sockfd);
+                        return std::nullopt;
+                    }
+                    if (errno == EINTR) {
+                        printErrorMessage(port, clientIP, clientPort,
+                            QString("INTERRUPTED BY SIGNAL (2) (") + strerror(errno) + ")");
+                        continue;
+                    }
+                }
+            }
+        }
+
+        // printInfoMessage(port, clientIP, clientPort, QString("MESSAGE RECEIVED ") + buf);
+        QString response(buf);
+
+        if (int idx = response.indexOf("{\"error\":\"ISMAS is offline\"}")) {
+            response = response.mid(0, idx);
+        } else
+        if (response.contains("RECORD")) { // RECORD SAVED or RECORD WRITE ABORTED
+            printInfoMessage(port, clientIP, clientPort, QString("IGNORED '") + response + "' RESPONSE");
+            ::close(sockfd);
+            return std::nullopt;
+        }
+
+        QJsonParseError parseError;
+        QJsonDocument document(QJsonDocument::fromJson(response.toUtf8(), &parseError));
+        if (parseError.error == QJsonParseError::NoError) {
+            if (document.isObject()) { // done: received valid APISM response
+                printInfoMessage(port, clientIP, clientPort,
+                   QString("VALID APISM RESPONSE .. \n") + response);
+                ::close(sockfd);
+                return response;
+            } else {
+                printInfoMessage(port, clientIP, clientPort,
+                   QString("CORRUPTED RESPONSE ") + response);
+                ::close(sockfd);
+                return std::nullopt;
+            }
+        } else {
+            printDebugMessage(port, clientIP, clientPort,
+                QString("PARSE ERROR ") + response + " " + parseError.errorString());
+            ::close(sockfd);
+            return std::nullopt;
+        }
+    }
+    return std::nullopt;
+}
+
+QString IsmasClient::updateNewsToIsmas(char const *event,
+                                       int percent,
+                                       int resultCode,
+                                       char const *step,
+                                       char const *step_result,
+                                       char const *version) {
+    char buf[1024];
+    memset(buf, 0, sizeof(buf));
+
+    QString const ts = QDateTime::currentDateTime().toString(Qt::ISODateWithMs);
+    snprintf(buf, sizeof(buf)-1,
+        "{"
+            "\"REASON\":\"SW_UP\","
+            "\"TIMESTAMP\":\"%s\","
+            "\"EVENT_ID\":\"0\","
+            "\"EVENT\":\"%s\","
+            "\"EVENTSTATE\":1,"
+            "\"PARAMETER\": {"
+                "\"PERCENT\" : %d,"
+                "\"RESULTCODE\" : %d,"
+                "\"STEP\" : \"%s\","
+                "\"STEP_RESULT\" : \"%s\","
+                "\"VERSION\" : \"%s\""
+            "}"
+        "}", ts.toStdString().c_str(), event, percent, resultCode,
+             step, step_result, version);
+    return buf;
+}
+
+QString IsmasClient::errorBackendNotConnected(QString const &info,
+                                              QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             RESULT_CODE::INSTALL_ERROR,
+                             "CHECK BACKEND CONNECTIVITY",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::errorGitClone(QString const &info,
+                                   QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             RESULT_CODE::INSTALL_ERROR,
+                             "CLONE CUSTOMER REPOSITORY FAILED",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::backendConnected(QString const &info,
+                                      QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "CHECK BACKEND CONNECTIVITY",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::execOpkgCommand(QString const &info,
+                                     QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "EXECUTE OPKG COMMAND",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::rsyncFile(QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "RSYNC FILE",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::updateTriggerSet(QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "CHECK UPDATE TRIGGER",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+
+}
+
+QString IsmasClient::errorUpdateTrigger(QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             RESULT_CODE::INSTALL_ERROR,
+                             "CHECK UPDATE TRIGGER",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+
+}
+
+QString IsmasClient::updateOfPSASendVersion(PSAInstalled const &psa) {
+    //static int const constexpr SIZE = 4096*8;
+    static char buf[4096*2];
+    memset(buf, 0, sizeof(buf));
+
+    // local data="#M=APISM#C=CMD_SENDVERSION#J=
+    snprintf(buf, sizeof(buf)-1,
+        "{"
+            "\"VERSION_INFO\" : {"
+                "\"REASON\":\"%s\","
+                "\"CREATED\":\"%s\","
+                "\"HASH\":\"%s\""
+            "},"
+            "\"TARIFF\" : {"
+                "\"VERSION\" : \"%s\","
+                "\"PROJECT\" : \"%s\","
+                "\"ZONE\" : %d,"
+                "\"INFO\" : \"%s\","
+                "\"BLOB\" : \"%s\","
+                "\"LAST-COMMIT\" : \"%s\","
+                "\"SIZE\" : %d,"
+                "\"LOADED\" : \"%s\""
+            "},"
+            "\"OPKG_COMMANDS\" : {"
+                "\"BLOB\" : \"%s\","
+                "\"LAST-COMMIT\" : \"%s\","
+                "\"SIZE\" : %d,"
+                "\"LOADED\" : \"%s\""
+            "},"
+            "\"JSON\" : {"
+                "\"DC2C_CASH\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_CONF\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_DEVICE\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_01\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_02\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_03\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_04\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_05\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_06\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_07\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_08\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_09\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_10\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_11\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_12\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_13\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_14\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_15\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_16\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_17\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_18\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_19\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_20\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_21\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_22\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_23\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_24\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_25\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_26\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_27\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_28\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_29\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_30\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_31\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "},"
+                "\"DC2C_PRINT_32\" : {"
+                    "\"BLOB\" : \"%s\","
+                    "\"SIZE\" : %d"
+                "}"
+            "},"
+            "\"HARDWARE\" : {"
+                "\"DEVICES\" : [\"PTU5\", \"DC\", \"PRINTER\", \"BNA\"]"
+            "},"
+            "\"OS\" : {"
+                "\"Linux\": \"%s\""
+            "},"
+            "\"CONFIG\" : {"
+                "\"PTU5\" : {"
+                    "\"CPU_SERIAL\" : \"%s\""
+                "},"
+                "\"DC\" : {"
+                    "\"HW-VERSION\" : \"%s\","
+                    "\"SW-VERSION\" : \"%s\","
+                    "\"SIZE\" : %d,"
+                    "\"GITBLOB\" : \"%s\","
+                    "\"GITLASTCOMMIT\" : \"%s\""
+                "},"
+                "\"PRINTER\" : {"
+                "},"
+                "\"BNA\" : {"
+                "}"
+            "},"
+            "\"SOFTWARE\": {"
+                "\"APISM\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"ATBQT\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"ATB-UPDATE-TOOL\" : {"
+                    "\"VERSION\" : \"%s\""
+                "}"
+            "},"
+            "\"PLUGINS\" : {"
+                "\"libATBDeviceControllerPlugin.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"libIngenicoISelf_CCPlugin.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"libMOBILISIS_CalculatePricePlugin.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"libMOBILISIS_CalculatePricePlugin_ConfigUi.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"libPRM_CalculatePricePlugin.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"libPRM_CalculatePricePlugin_ConfigUi.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "},"
+                "\"libTCP_ZVT_CCPlugin.so\" : {"
+                    "\"VERSION\" : \"%s\""
+                "}"
+            "}"
+        "}",
+        psa.versionInfo.reason.toStdString().c_str(),
+        psa.versionInfo.created.toStdString().c_str(),
+        psa.versionInfo.lastCommit.toStdString().c_str(),
+
+        psa.tariff.version.toStdString().c_str(),
+        psa.tariff.project.toStdString().c_str(),
+        psa.tariff.zone,
+        psa.tariff.info.toStdString().c_str(),
+        psa.tariff.blob.toStdString().c_str(),
+        psa.tariff.lastCommit.toStdString().c_str(),
+        psa.tariff.size,
+        psa.tariff.loadTime.toStdString().c_str(),
+
+        psa.opkg.blob.toStdString().c_str(),
+        psa.opkg.lastCommit.toStdString().c_str(),
+        psa.opkg.size,
+        psa.opkg.loadTime.toStdString().c_str(),
+
+        psa.cash.blob.toStdString().c_str(),
+        psa.cash.size,
+        psa.conf.blob.toStdString().c_str(),
+        psa.conf.size,
+        psa.device.blob.toStdString().c_str(),
+        psa.device.size,
+
+        psa.print[0].blob.toStdString().c_str(),
+        psa.print[0].size,
+        psa.print[1].blob.toStdString().c_str(),
+        psa.print[1].size,
+        psa.print[2].blob.toStdString().c_str(),
+        psa.print[2].size,
+        psa.print[3].blob.toStdString().c_str(),
+        psa.print[3].size,
+        psa.print[4].blob.toStdString().c_str(),
+        psa.print[4].size,
+        psa.print[5].blob.toStdString().c_str(),
+        psa.print[5].size,
+        psa.print[6].blob.toStdString().c_str(),
+        psa.print[6].size,
+        psa.print[7].blob.toStdString().c_str(),
+        psa.print[7].size,
+        psa.print[8].blob.toStdString().c_str(),
+        psa.print[8].size,
+        psa.print[9].blob.toStdString().c_str(),
+        psa.print[9].size,
+        psa.print[10].blob.toStdString().c_str(),
+        psa.print[10].size,
+        psa.print[11].blob.toStdString().c_str(),
+        psa.print[11].size,
+        psa.print[12].blob.toStdString().c_str(),
+        psa.print[12].size,
+        psa.print[13].blob.toStdString().c_str(),
+        psa.print[13].size,
+        psa.print[14].blob.toStdString().c_str(),
+        psa.print[14].size,
+        psa.print[15].blob.toStdString().c_str(),
+        psa.print[15].size,
+        psa.print[16].blob.toStdString().c_str(),
+        psa.print[16].size,
+        psa.print[17].blob.toStdString().c_str(),
+        psa.print[17].size,
+        psa.print[18].blob.toStdString().c_str(),
+        psa.print[18].size,
+        psa.print[19].blob.toStdString().c_str(),
+        psa.print[19].size,
+        psa.print[20].blob.toStdString().c_str(),
+        psa.print[20].size,
+        psa.print[21].blob.toStdString().c_str(),
+        psa.print[21].size,
+        psa.print[22].blob.toStdString().c_str(),
+        psa.print[22].size,
+        psa.print[23].blob.toStdString().c_str(),
+        psa.print[23].size,
+        psa.print[24].blob.toStdString().c_str(),
+        psa.print[24].size,
+        psa.print[25].blob.toStdString().c_str(),
+        psa.print[25].size,
+        psa.print[26].blob.toStdString().c_str(),
+        psa.print[26].size,
+        psa.print[27].blob.toStdString().c_str(),
+        psa.print[27].size,
+        psa.print[28].blob.toStdString().c_str(),
+        psa.print[28].size,
+        psa.print[29].blob.toStdString().c_str(),
+        psa.print[29].size,
+        psa.print[30].blob.toStdString().c_str(),
+        psa.print[30].size,
+        psa.print[31].blob.toStdString().c_str(),
+        psa.print[31].size,
+
+        psa.hw.linuxVersion.toStdString().c_str(),
+        psa.hw.cpuSerial.toStdString().c_str(),
+
+        psa.dc.versionHW.toStdString().c_str(),
+        psa.dc.versionSW.toStdString().c_str(),
+        psa.dc.size,
+        psa.dc.gitBlob.toStdString().c_str(),
+        psa.dc.gitLastCommit.toStdString().c_str(),
+
+        psa.sw.apismVersion.toStdString().c_str(),
+        psa.sw.atbQTVersion.toStdString().c_str(),
+        psa.sw.atbUpdateToolVersion.toStdString().c_str(),
+
+        psa.pluginVersion.deviceController.toStdString().c_str(),
+        psa.pluginVersion.ingenicoISelfCC.toStdString().c_str(),
+        psa.pluginVersion.mobilisisCalculatePrice.toStdString().c_str(),
+        psa.pluginVersion.mobilisisCalculatePriceConfigUi.toStdString().c_str(),
+        psa.pluginVersion.prmCalculatePrice.toStdString().c_str(),
+        psa.pluginVersion.prmCalculatePriceConfigUi.toStdString().c_str(),
+        psa.pluginVersion.tcpZVT.toStdString().c_str());
+
+    qInfo() << buf;
+
+    return buf;
+}
+
+QString IsmasClient::updateOfPSAContinues(QString currentStage,
+                                          QString currentStageInfo,
+                                          QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             currentStage.toStdString().c_str(),
+                             currentStageInfo.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::updateOfPSAStarted(QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "START",
+                             "detected WAIT state: start update process",
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::checkoutBranch(QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "BRANCH-CHECKOUT",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::cloneAndCheckoutCustomerRepository(QString const &info, QString const &version) { // clone and checkout customer repository
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "CLONE-CHECKOUT",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::gitFetch(QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0010",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "GIT-FETCH",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::errorGitFetch(int resultCode, QString const &info, QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             resultCode,
+                             "GIT-FETCH-FAILED",
+                             info.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::updateOfPSAActivated(QString const &version) {   // sent even after success
+    m_progressInPercent = 0;
+    return updateNewsToIsmas("U0002",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "UPDATE ACTIVATED",
+                             "reset WAIT state",
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::updateOfPSASucceeded(QString const &version) {
+    m_progressInPercent = 100;
+    return updateNewsToIsmas("U0001",
+                             m_progressInPercent,
+                             RESULT_CODE::SUCCESS,
+                             "UPDATE SUCCESS",
+                             "update process succeeded",
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::sanityCheckFailed(int resultCode, QString reason, QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             resultCode,
+                             "SANITY-CHECK-FAILED",
+                             reason.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+QString IsmasClient::jsonParseFailed(int resultCode, QString reason, QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             resultCode,
+                             "JSON-PARSE-ERROR",
+                             reason.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+std::optional<QString> IsmasClient::finalResult(int resultCode,
+                                                QString reason,
+                                                QString const &version) {
+    Q_UNUSED(resultCode);
+    Q_UNUSED(reason);
+    Q_UNUSED(version);
+
+    /*
+    m_progressInPercent = 100;
+    if (resultCode == RESULT_CODE::SUCCESS) {
+        return updateNewsToIsmas("U0002",
+                                 m_progressInPercent,
+                                 resultCode,
+                                 "FINAL-UPDATE-RESULT",
+                                 reason.toStdString().c_str(),
+                                 version.toStdString().c_str());
+    }
+    if (resultCode == RESULT_CODE::INSTALL_ERROR) {
+        return updateNewsToIsmas("U0003",
+                                 m_progressInPercent,
+                                 resultCode,
+                                 "FINAL-UPDATE-RESULT",
+                                 reason.toStdString().c_str(),
+                                 version.toStdString().c_str());
+    }
+    */
+    return std::nullopt;
+}
+
+QString IsmasClient::updateOfPSAFailed(int resultCode, QString step,
+                                       QString reason, QString const &version) {
+    return updateNewsToIsmas("U0003",
+                             m_progressInPercent,
+                             resultCode,
+                             step.toStdString().c_str(),
+                             reason.toStdString().c_str(),
+                             version.toStdString().c_str());
+}
+
+char const *IsmasClient::reason[REASON::ENTRIES] = {
+    "TIME-TRIGGERED", "SERVICE", "DEV-TEST"
+};
+
+QString IsmasClient::getReasonForLastSendVersion() {
+    QString const &parentName = Utils::getParentName();
+    if (parentName == "ATBQT") {
+        return reason[REASON::SERVICE];
+    }
+    if (parentName == "systemd") {
+        return reason[REASON::TIME_TRIGGERED];
+    }
+    return reason[REASON::DEV_TEST];
+}

ismas/ismas_client.h

@@ -0,0 +1,208 @@
+#ifndef ISMAS_CLIENT_H_INCLUDED
+#define ISMAS_CLIENT_H_INCLUDED
+
+#include <QObject>
+#include <QString>
+
+#include <optional>
+
+struct PSAInstalled {
+    struct VersionInfo {
+        QString created;
+        QString reason;
+        QString lastCommit;
+    } versionInfo;
+
+    struct Tariff {
+        QString name;
+        QString version;
+        QString project;
+        int zone;
+        int size;
+        QString blob;
+        QString lastCommit;
+        QString info;
+        QString loadTime;
+    } tariff;
+
+    struct HardWare {
+        QString linuxVersion;
+        QString cpuSerial;
+    } hw;
+
+    struct Opkg {
+        int size;
+        QString blob;
+        QString lastCommit;
+        QString loadTime;
+    } opkg;
+
+    struct DC {
+        QString versionHW;
+        QString versionSW;
+        QString gitBlob;
+        QString gitLastCommit;
+        int size;
+    } dc;
+
+    struct SoftWare {
+        QString apismVersion;
+        QString atbQTVersion;
+        QString atbUpdateToolVersion;
+    } sw;
+
+    struct PluginVersion {
+        QString deviceController;
+        QString ingenicoISelfCC;
+        QString mobilisisCalculatePrice;
+        QString mobilisisCalculatePriceConfigUi;
+        QString prmCalculatePrice;
+        QString prmCalculatePriceConfigUi;
+        QString tcpZVT;
+    } pluginVersion;
+
+    struct DC2C {
+        QString name;
+        QString blob;
+        int size;
+    };
+
+    DC2C cash;
+    DC2C conf;
+    DC2C device;
+
+    DC2C print[32];
+
+    explicit PSAInstalled() {
+        tariff.name = "N/A";
+        tariff.version = "N/A";
+        tariff.project = "N/A";
+        tariff.zone = -1;
+        tariff.size = -1;
+        tariff.blob = "N/A";
+        tariff.info = "N/A";
+        tariff.loadTime = "N/A";
+
+        hw.linuxVersion = "N/A";
+        hw.cpuSerial = "N/A";
+
+        opkg.size = -1;
+        opkg.blob = "N/A";
+        opkg.lastCommit = "N/A";
+        opkg.loadTime = "N/A";
+
+        dc.versionHW = "N/A";
+        dc.versionSW = "N/A";
+        dc.gitBlob = "N/A";
+        dc.gitLastCommit = "N/A";
+        dc.size = -1;
+
+        sw.apismVersion = "N/A";
+        sw.atbQTVersion = "N/A";
+        sw.atbUpdateToolVersion = "N/A";
+
+        pluginVersion.deviceController = "N/A";
+        pluginVersion.ingenicoISelfCC = "N/A";
+        pluginVersion.mobilisisCalculatePrice = "N/A";
+        pluginVersion.mobilisisCalculatePriceConfigUi = "N/A";
+        pluginVersion.prmCalculatePrice = "N/A";
+        pluginVersion.prmCalculatePriceConfigUi = "N/A";
+        pluginVersion.tcpZVT = "N/A";
+
+        cash.name = "N/A";
+        cash.blob = "N/A";
+        cash.size = -1;
+
+        conf.name = "N/A";
+        conf.blob = "N/A";
+        conf.size = -1;
+
+        device.size = -1;
+        device.blob = "N/A";
+        device.size = -1;
+
+        for (int i=0; i < 32; ++i) {
+            print[i].size = -1;
+            print[i].blob = "N/A";
+            print[i].size = -1;
+        }
+    }
+};
+
+class IsmasClient : public QObject {
+    Q_OBJECT
+
+    int m_progressInPercent;
+public:
+    explicit IsmasClient() : m_progressInPercent(1) {}
+
+    enum APISM {
+        DB_PORT = 7777,
+        DIRECT_PORT = 7778
+    };
+
+
+    enum RESULT_CODE {
+        SUCCESS=0,
+        NO_UPDATE_NECESSARY=1,
+        BACKUP_FAILED=2,
+        WRONG_PACKAGE=3,
+        INSTALL_ERROR=4};
+
+    enum REASON {
+        TIME_TRIGGERED = 0,
+        SERVICE,
+        DEV_TEST,
+        ENTRIES
+    };
+
+    static char const *reason[REASON::ENTRIES];
+
+    static std::optional<QString>
+        sendRequestReceiveResponse(int port, QString const &request);
+
+    static QString getReasonForLastSendVersion();
+
+    int getProgressInPercent() const {return m_progressInPercent; }
+    void setProgressInPercent(int procent) { m_progressInPercent = procent; }
+
+    QString updateNewsToIsmas(char const *event,
+                              int percent,
+                              int resultCode,
+                              char const *step,
+                              char const *step_result,
+                              char const *version);
+
+    QString updateOfPSAStarted(QString const &version = QString());   // start of update process
+    QString cloneAndCheckoutCustomerRepository(QString const &info, QString const &version = QString());   // clone and checkout customer repository
+    QString checkoutBranch(QString const &info, QString const &version = QString());   // checkout branch
+    QString errorBackendNotConnected(QString const &info, QString const &version = QString());   // checkout branch
+    QString errorGitClone(QString const &info, QString const &version = QString());
+    QString backendConnected(QString const &info, QString const &version = QString());
+    QString updateTriggerSet(QString const &info, QString const &version = QString());
+    QString errorUpdateTrigger(QString const &info, QString const &version = QString());
+    QString gitFetch(QString const &info, QString const &version = QString());
+    QString execOpkgCommand(QString const &info, QString const &version = QString());
+    QString rsyncFile(QString const &info, QString const &version = QString());
+    QString errorGitFetch(int resultCode, QString const &info, QString const &version = QString());
+    QString updateOfPSAActivated(QString const &version = QString());
+                                    // and update accepted
+    QString updateOfPSASucceeded(QString const &version = QString()); // update process succeeded
+    QString updateOfPSAContinues(QString currentStage, QString currentStageInfo, QString const &version = QString());
+    QString updateOfPSAFailed(int resultCode, QString step, QString reason, QString const &version = QString());
+    QString sanityCheckFailed(int resultCode, QString reason, QString const &version = QString());
+    QString jsonParseFailed(int resultCode, QString reason, QString const &version = QString());
+    std::optional<QString> finalResult(int resultCode, QString reason, QString const &version = QString());
+
+    QString updateOfPSASendVersion(PSAInstalled const &psa);
+
+  private:
+    static void printDebugMessage(int port, QString const &clientIP, int clientPort,
+                                  QString const &message);
+    static void printInfoMessage(int port, QString const &clientIP, int clientPort,
+                                 QString const &message);
+    static void printErrorMessage(int port, QString const &clientIP, int clientPort,
+                                  QString const &message);
+};
+
+#endif // ISMAS_CLIENT_H_INCLUDED

main.cpp

@@ -4,19 +4,40 @@
 #include <QTimer>
 #include <QFileInfo>
 
+#ifdef __linux__
+#include <stdlib.h> // system()
+#endif
+
 #include "message_handler.h"
-#include "interfaces.h"
-#include "DCPlugin/include/hwapi.h"
+#include "plugins/interfaces.h"
 
 #include <unistd.h>
-#include <thread>
 #include <memory>
 #include <QSharedMemory>
 #include <QRunnable>
 #include <QThreadPool>
 #include <QDir>
+#include <QProcess>
+#include <QCommandLineParser>
+#include <QStandardPaths>
+#include <QMainWindow>
 
 #include "update.h"
+#include "git/git_client.h"
+#include "ismas/ismas_client.h"
+#include "worker_thread.h"
+#include "worker.h"
+#include "mainwindow.h"
+#include "utils.h"
+
+#include <QThread>
+#include <QtWidgets>
+#include <QScopedPointer>
+
+#if defined (Q_OS_UNIX) || defined (Q_OS_LINUX)
+#include <unistd.h>
+#include <errno.h>
+#endif
 
 #ifdef PTU5
 #define SERIAL_PORT "ttymxc2"
@@ -24,45 +45,145 @@
 #define SERIAL_PORT "ttyUSB0"
 #endif
 
-class Work : public QRunnable {
-    QString m_update_ctrl_file;
-    QString m_workingDir;
-public:
-    explicit Work(QString update_ctrl_file, QString workingDir)
-      : m_update_ctrl_file(update_ctrl_file)
-        , m_workingDir(workingDir) {
-    }
-    void run() {
-        Update m_update(m_update_ctrl_file, m_workingDir);
-        // if (m_update.doUpdate()) {
-        // }
-    }
-};
-
 // argv[1]: file to send to dc
 int main(int argc, char *argv[]) {
+    QByteArray const value = qgetenv("LC_ALL");
+    if (value != "C") {
+        qputenv("LC_ALL", "C");
+    }
+    // qputenv("XDG_RUNTIME_DIR", "/run/user/0");
+
+    openlog("ATB-UPDATE", LOG_PERROR | LOG_PID | LOG_CONS, LOG_USER);
+
     QApplication a(argc, argv);
+    QApplication::setApplicationName("ATBUpdateTool");
+    QApplication::setApplicationVersion(APP_VERSION);
 
     if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
         atbInstallMessageHandler(atbDebugOutput);
-        setDebugLevel(QtMsgType::QtDebugMsg);
-        //setDebugLevel(QtMsgType::QtDebugMsg);
+        setDebugLevel(LOG_NOTICE);
     }
 
-    QByteArray const value = qgetenv("XDG_RUNTIME_DIR");
-    if (value.size() == 0) {
-        qputenv("XDG_RUNTIME_DIR", "/run/user/0");
-    }
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Download tool for downloading device controller firmware, printer json-files and executing opkg-commands.");
+    parser.addHelpOption();
+    parser.addVersionOption();
 
-    QString const update_ctrl_file = "/opt/app/tools/atbupdate/update_log.csv";
-    QString const workingDir = (argc == 2) ? argv[1] : ".";
+    QCommandLineOption pluginDirectoryOption(QStringList() << "plugin-directory" << "plugin-directory",
+        QCoreApplication::translate("main", "Where to find dc-plugin."),
+        QCoreApplication::translate("main", "directory"));
+    QString const pluginDefault = "/usr/lib";
+    pluginDirectoryOption.setDefaultValue(pluginDefault);
+    parser.addOption(pluginDirectoryOption);
 
-    Work work(update_ctrl_file, workingDir);
-    work.setAutoDelete(false);
-    QThreadPool *threadPool = QThreadPool::globalInstance();
-    threadPool->start(&work);
-    if (!threadPool->waitForDone()) {
-        return -1;
-    }
+    QCommandLineOption pluginNameOption(QStringList() << "plugin-name" << "plugin-name",
+        QCoreApplication::translate("main", "Name of dc-plugin."),
+        QCoreApplication::translate("main", "directory"));
+    QString const pluginNameDefault = "libCAslave.so";
+    pluginNameOption.setDefaultValue(pluginNameDefault);
+    parser.addOption(pluginNameOption);
+
+    QCommandLineOption noDownloadOption("no-psa-hardware-update",
+        QCoreApplication::translate("main", "Do not update the PSA firmware (json, device-controller)."));
+    parser.addOption(noDownloadOption);
+
+    QCommandLineOption workingDirectoryOption(QStringList() << "working-directory" << "working-directory",
+        QCoreApplication::translate("main", "working directory of update-script."),
+        QCoreApplication::translate("main", "directory"));
+    QString const workingDirectoryDefault = "/opt/app/tools/atbupdate";
+    workingDirectoryOption.setDefaultValue(workingDirectoryDefault);
+    parser.addOption(workingDirectoryOption);
+
+    QCommandLineOption dryRunOption(QStringList() << "d" << "dry-run",
+        QCoreApplication::translate("main", "Start ATBUpdateTool in dry-run-mode. No actual actions."));
+    parser.addOption(dryRunOption);
+
+    QCommandLineOption extendedVersionOption(QStringList() << "V" << "extended-version",
+        QCoreApplication::translate("main", "Show extended version (including last git commit)."));
+    parser.addOption(extendedVersionOption);
+
+    QCommandLineOption yoctoVersionOption(QStringList() << "y" << "yocto-version",
+        QCoreApplication::translate("main", "Show yocto version of ATBUpdateTool."));
+    parser.addOption(yoctoVersionOption);
+
+    QCommandLineOption yoctoInstallStatusOption(QStringList() << "Y" << "yocto-install",
+        QCoreApplication::translate("main", "Show yocto install status of ATBUpdateTool."));
+    parser.addOption(yoctoInstallStatusOption);
+
+    // Process the actual command line arguments given by the user
+    parser.process(a);
+    QString plugInDir = parser.value(pluginDirectoryOption);
+    QString plugInName = parser.value(pluginNameOption);
+    QString workingDir = parser.value(workingDirectoryOption);
+    bool const dryRun = parser.isSet(dryRunOption);
+    bool const noUpdatePsaHardware = parser.isSet(noDownloadOption);
+    bool const showYoctoVersion = parser.isSet(yoctoVersionOption);
+    bool const showYoctoInstallStatus = parser.isSet(yoctoInstallStatusOption);
+    bool const showExtendedVersion = parser.isSet(extendedVersionOption);
+    QString const rtPath = QCoreApplication::applicationDirPath();
+
+    int machineNr = Utils::read1stLineOfFile("/etc/machine_nr");
+    int customerNr = Utils::read1stLineOfFile("/etc/cust_nr");
+    int zoneNr = Utils::read1stLineOfFile("/etc/zone_nr");
+    QString const branchName = (zoneNr != 0)
+            ? QString("zg1/zone%1").arg(zoneNr) : "master";
+
+    QThread::currentThread()->setObjectName("main thread");
+    qInfo() << "Main thread" << QThread::currentThreadId();
+
+    if (showExtendedVersion) {
+        printf(APP_EXTENDED_VERSION"\n");
         return 0;
     }
+
+    if (showYoctoVersion) {
+        printf("%s\n", Worker::getATBUpdateToolYoctoVersion().toStdString().c_str());
+        return 0;
+    }
+
+    if (showYoctoInstallStatus) {
+        printf("%s\n", Worker::getATBUpdateToolYoctoInstallationStatus().toStdString().c_str());
+        return 0;
+    }
+
+    if (!QDir(plugInDir).exists()) {
+        qCritical() << plugInDir
+                    << "does not exists, but has to contain dc-library";
+        exit(-1);
+    }
+
+    qInfo() << "pwd ......................" << rtPath;
+    qInfo() << "plugInDir ................" << plugInDir;
+    qInfo() << "plugInName ..............." << plugInName;
+    qInfo() << "workingDir ..............." << workingDir;
+    qInfo() << "dryRun ..................." << dryRun;
+    qInfo() << "noUpdatePsaHardware ......" << noUpdatePsaHardware;
+    qInfo() << "extended-version ........." << APP_EXTENDED_VERSION;
+    //qInfo() << "yocto-version ............" << Worker::getATBUpdateToolYoctoVersion();
+    //qInfo() << "yocto-install-status ....." << Worker::getATBUpdateToolYoctoInstallationStatus();
+
+    // before loading the library, delete all possible shared memory segments
+#if defined Q_OS_LINUX || defined Q_OS_UNIX
+    // system("rm -rf /tmp/qipc*");
+#else
+#error "Only tested under UNIX/LINUX"
+#endif
+
+    Worker worker(customerNr,
+                  machineNr,
+                  zoneNr,
+                  branchName,
+                  plugInDir,
+                  plugInName,
+                  workingDir,
+                  noUpdatePsaHardware,
+                  dryRun);
+
+    MainWindow mw(&worker);
+    worker.setMainWindow(&mw);
+
+    mw.setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
+    mw.showFullScreen();
+
+    return a.exec();
+}

main.cpp.bck

@@ -0,0 +1,81 @@
+#include <QCoreApplication>
+#include <QApplication>
+#include <QDebug>
+#include <QTimer>
+#include <QFileInfo>
+
+#include "message_handler.h"
+#include "plugins/interfaces.h"
+
+#include "DCPlugin/include/hwapi.h"
+
+#include <unistd.h>
+#include <thread>
+#include <memory>
+
+static void updateBinary(std::unique_ptr<hwinf> hw,     // update d2dc*.bin
+                         char const *fileToSendToDC,
+                         char const *baudrate,
+                         char const *serialInterface) {
+    for (int i=0; i < 1;++i) {
+        hw->dc_updateDC(fileToSendToDC, baudrate, serialInterface);
+        std::this_thread::sleep_for(std::chrono::milliseconds(3000));
+    }
+    QCoreApplication::quit();
+}
+
+static void updatePrinterConf(std::unique_ptr<hwinf> hw, // update printer-file
+                              char const *fileToSendToDC,
+                              char const *baudrate,
+                              char const *serialInterface) {
+    for (int i=0; i < 1;++i) {
+        hw->dc_updateDC(fileToSendToDC, baudrate, serialInterface);
+        std::this_thread::sleep_for(std::chrono::milliseconds(3000));
+    }
+    QCoreApplication::quit();
+}
+
+int main(int argc, char *argv[]) {
+    QApplication a(argc, argv);
+
+    if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
+        atbInstallMessageHandler(atbDebugOutput);
+        setDebugLevel(QtMsgType::QtDebugMsg);
+        //setDebugLevel(QtMsgType::QtDebugMsg);
+    }
+
+    if (argc > 2) {
+        qCritical() << "Usage: " << argv[0] << "<file to send to dc>";
+        return -1;
+    }
+
+    std::unique_ptr<hwinf> hw(new hwapi());
+    QFileInfo fileInfo(argv[1]);
+    QString fname(fileInfo.fileName());
+    int ret = 0;
+
+    if (fname.startsWith("dc") && fname.endsWith(".bin")) {
+#ifdef PTU5
+        std::thread t(updateBinary, std::move(hw),
+                      fname.toStdString().c_str(), "115200", "ttymxc2");
+#else
+        std::thread t(updateBinary, std::move(hw),
+                      fname.toStdString().c_str(), "115200", "ttyUSB0");
+#endif
+        ret = a.exec();
+        t.join();
+    } else
+    if (fname.startsWith("DC") && fname.endsWith(".json")) {
+#ifdef PTU5
+        std::thread t(updatePrinterConf, std::move(hw),
+                      fname.toStdString().c_str(), "115200", "ttymxc2");
+#else
+        std::thread t(updatePrinterConf, std::move(hw),
+                      fname.toStdString().c_str(), "115200", "ttyUSB0");
+#endif
+        ret = a.exec();
+        t.join();
+    }
+
+    return ret;
+}

main.cpp.bck2

@@ -0,0 +1,54 @@
+#include <QCoreApplication>
+#include <QApplication>
+#include <QDebug>
+#include <QTimer>
+#include <QFileInfo>
+
+#include "message_handler.h"
+#include "interfaces.h"
+#include "DCPlugin/include/hwapi.h"
+
+#include <unistd.h>
+#include <thread>
+#include <memory>
+#include <QSharedMemory>
+#include <QRunnable>
+#include <QThreadPool>
+#include <QDir>
+
+#include "update.h"
+#include "worker_thread.h"
+#include "worker.h"
+
+#ifdef PTU5
+#define SERIAL_PORT "ttymxc2"
+#else
+#define SERIAL_PORT "ttyUSB0"
+#endif
+
+// argv[1]: file to send to dc
+int main(int argc, char *argv[]) {
+    QApplication a(argc, argv);
+
+    if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
+        atbInstallMessageHandler(atbDebugOutput);
+        setDebugLevel(QtMsgType::QtDebugMsg);
+        //setDebugLevel(QtMsgType::QtDebugMsg);
+    }
+
+    QByteArray const value = qgetenv("XDG_RUNTIME_DIR");
+    if (value.size() == 0) {
+        qputenv("XDG_RUNTIME_DIR", "/run/user/0");
+    }
+
+    QString const update_ctrl_file = "/opt/app/tools/atbupdate/update_log.csv";
+    QString const workingDir = (argc == 2) ? argv[1] : ".";
+
+    Worker worker(update_ctrl_file, workingDir);
+
+    qCritical() << "starting main event loop";
+    int ret = a.exec();
+    qCritical() << "stopping main event loop" << ret;
+
+    return ret;
+}

main.cpp.bck3

@@ -0,0 +1,62 @@
+#include <QCoreApplication>
+#include <QApplication>
+#include <QDebug>
+#include <QTimer>
+#include <QFileInfo>
+
+#include "message_handler.h"
+#include "plugins/interfaces.h"
+
+#include <unistd.h>
+#include <thread>
+#include <memory>
+#include <QSharedMemory>
+#include <QRunnable>
+#include <QThreadPool>
+#include <QDir>
+
+#include "update.h"
+#include "worker_thread.h"
+#include "worker.h"
+
+#include <thread>
+
+#ifdef PTU5
+#define SERIAL_PORT "ttymxc2"
+#else
+#define SERIAL_PORT "ttyUSB0"
+#endif
+
+static void doWork(QString update_ctrl_file, QString workingDir) {
+    std::this_thread::sleep_for(std::chrono::milliseconds(2000));
+    Update update(update_ctrl_file, workingDir);
+    update.doUpdate();
+    std::this_thread::sleep_for(std::chrono::milliseconds(2000));
+    QCoreApplication::quit();
+}
+
+// argv[1]: file to send to dc
+int main(int argc, char *argv[]) {
+    QApplication a(argc, argv);
+
+    if (!messageHandlerInstalled()) { // change internal qt-QDebug-handling
+        atbInstallMessageHandler(atbDebugOutput);
+        setDebugLevel(QtMsgType::QtDebugMsg);
+        //setDebugLevel(QtMsgType::QtDebugMsg);
+    }
+
+    QByteArray const value = qgetenv("XDG_RUNTIME_DIR");
+    if (value.size() == 0) {
+        qputenv("XDG_RUNTIME_DIR", "/run/user/0");
+    }
+
+    // QString const update_ctrl_file = "/opt/app/tools/atbupdate/update_log.csv";
+    // QString const workingDir = (argc == 2) ? argv[1] : ".";
+
+    // std::thread t(doWork, update_ctrl_file, workingDir);
+
+    int ret = a.exec();
+    // t.join();
+
+    return ret;
+}

mainwindow.cpp

@@ -0,0 +1,305 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include "worker.h"
+#include "utils.h"
+#include "progress_event.h"
+#include "update_dc_event.h"
+#include "plugins/interfaces.h"
+
+#include <QDateTime>
+#include <QMessageBox>
+#include <QDebug>
+#include <QScrollBar>
+#include <QEvent>
+
+
+MainWindow::MainWindow(Worker *worker, QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+    , m_worker(worker)
+    , m_width(70)
+    , m_progressRunning(false)
+    , m_updateStep(UpdateDcEvent::UpdateStep::NONE) {
+
+    this->setStatusBar(new QStatusBar(this));
+    QFont f;
+    f.setStyleHint(QFont::Monospace);
+    f.setWeight(QFont::Bold);
+    f.setFamily("Misc Fixed");
+    f.setPixelSize(12);
+    this->statusBar()->setFont(f);
+
+    ui->setupUi(this);
+
+    ui->updateProgress->setRange(0, 100);
+    ui->updateProgress->reset();
+
+    QStringList lst;
+    QString start = QDateTime::currentDateTime().toString(Qt::ISODate);
+    lst << QString("Start: ") + start.leftJustified(m_width-10);
+    lst << QString("").leftJustified(m_width-3, '=');
+    lst << QString("Update tool version: %1 - %2 %3").arg(APP_VERSION).arg(APP_BUILD_DATE).arg(APP_BUILD_TIME).leftJustified(m_width-3);
+    lst << QString("Machine number     : %1 ").arg(m_worker->machineNr()).leftJustified(m_width-3);
+    lst << QString("Customer number    : %1 ").arg(m_worker->customerNr()).leftJustified(m_width-3);
+    lst << QString("Zone number        : %1 (%2)").arg(m_worker->zoneNr()).arg(Utils::zoneName(m_worker->zoneNr())).leftJustified(m_width-3);
+    lst << QString("APISM version      : %1").arg(m_worker->apismVersion()).leftJustified(m_width-3);
+    lst << QString("").leftJustified(m_width-3, '=');
+
+    ui->updateStatus->setText(lst.join('\n'));
+    ui->updateStatus->setEnabled(true);
+    // ui->updateStatus->installEventFilter(this);
+
+    m_startTimer = new QTimer(this);
+    connect(m_startTimer, SIGNAL(timeout()), m_worker, SLOT(start()));
+    m_startTimer->setSingleShot(true);
+    m_startTimer->start(1000);
+
+    m_exitTimer = new QTimer(this);
+    connect(m_exitTimer, SIGNAL(timeout()), ui->exit, SLOT(click()));
+    m_exitTimer->setSingleShot(true);
+    m_exitTimer->start(1800 * 1000);
+
+    connect(ui->exit, SIGNAL(clicked()),this,SLOT(onQuit()));
+    connect(m_worker, SIGNAL(disableExit()),this,SLOT(onDisableExit()));
+    connect(m_worker, SIGNAL(enableExit()),this,SLOT(onEnableExit()));
+    connect(m_worker, SIGNAL(stopStartTimer()),this,SLOT(onStopStartTimer()));
+    connect(m_worker, SIGNAL(restartExitTimer()),this,SLOT(onRestartExitTimer()));
+    connect(m_worker, SIGNAL(appendText(QString,QString)),this,SLOT(onAppendText(QString,QString)));
+    connect(m_worker, SIGNAL(showErrorMessage(QString,QString)),this, SLOT(onShowErrorMessage(QString,QString)));
+    connect(m_worker, SIGNAL(showStatusMessage(QString,QString)),this, SLOT(onShowStatusMessage(QString,QString)));
+    connect(m_worker, SIGNAL(showErrorMessage(QStringList)),this, SLOT(onShowErrorMessage(QStringList)));
+    connect(m_worker, SIGNAL(showStatusMessage(QString,QString)),this, SLOT(onShowStatusMessage(QString,QString)));
+    connect(m_worker, SIGNAL(replaceLast(QString,QString)),this,SLOT(onReplaceLast(QString,QString)));
+    connect(m_worker, SIGNAL(replaceLast(QStringList,QString)),this, SLOT(onReplaceLast(QStringList,QString)));
+}
+
+MainWindow::~MainWindow() {
+    delete m_startTimer;
+    delete m_exitTimer;
+    delete ui;
+}
+
+void MainWindow::customEvent(QEvent *event) {
+    if (event->type() == ProgressEvent::type()) {
+        ProgressEvent *pevent = (ProgressEvent *)event;
+        int const progress = pevent->progressPercent();
+        QObject const *sender = pevent->sender();
+        if (sender == this) {
+            switch(progress) {
+            case 0: {
+                ui->updateProgress->reset();
+            } break;
+            case START_PROGRESS_LOOP: {
+                m_progressRunning = true;
+                ui->updateProgress->reset();
+                // m_progressValue = 10;
+                QApplication::postEvent(this, new ProgressEvent(this, 1));
+            } break;
+            case STOP_PROGRESS_LOOP: {
+                m_progressRunning = false;
+                // m_progressValue -= 10;
+                // m_worker->setProgress(m_progressValue/10);
+            } break;
+            default: {
+                if (m_progressRunning) {
+                    // m_progressValue = progress;
+                    ui->updateProgress->setValue(progress);
+                    // ueberpruefen: hauptfenster schickt sich selber ein event
+                    // QApplication::postEvent(this, new ProgressEvent(this, progress));
+                    // QThread::msleep(500);
+                }}
+            }
+        } else
+        if (sender == m_worker) {
+            switch(progress) {
+            case 0: {
+                ui->updateProgress->reset();
+            } break;
+            case START_PROGRESS_LOOP: {
+                QApplication::postEvent(this, new ProgressEvent(this, START_PROGRESS_LOOP));
+            } break;
+            case STOP_PROGRESS_LOOP: {
+                QApplication::postEvent(this, new ProgressEvent(this, STOP_PROGRESS_LOOP));
+            } break;
+            default:{
+                ui->updateProgress->setValue(progress);
+            }}
+        } else {
+            qCritical() << "!!! UNKNOWN SENDER !!!";
+        }
+    }
+
+    QThread::yieldCurrentThread();
+}
+
+void MainWindow::onStopStartTimer() {
+    m_startTimer->stop();
+}
+
+void MainWindow::onDisableExit() {
+   ui->exit->setEnabled(false);
+}
+
+void MainWindow::onEnableExit() {
+   ui->exit->setEnabled(true);
+}
+
+void MainWindow::onRestartExitTimer() {
+    m_exitTimer->stop();
+    m_exitTimer->start(60 * 1000);
+
+    scrollDownTextEdit();
+    ui->updateStatus->setEnabled(false);
+}
+
+void MainWindow::onQuit() {
+    m_exitTimer->stop();
+    int errorCode = 0;
+
+    qCritical()
+        << QString("ON QUIT: CURRENT STEP %1")
+            .arg(m_worker->getSmap()[m_worker->currentStep()]);
+
+    // TODO: replace SEND_LAST_VERSION with UPDATE_SUCCEEDED
+    if (m_worker->currentStep() != Worker::UPDATE_STEP::SEND_LAST_VERSION) {
+        errorCode = -1;
+    }
+    qCritical() << QString("ON QUIT: EXIT CODE %1").arg(errorCode);
+    qApp->exit(errorCode);
+}
+
+void MainWindow::scrollDownTextEdit() {
+    // Utils::printInfoMsg(QString("SCROLL-DOWN-TEXT_EDIT CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
+    ui->updateStatus->setEnabled(true);
+
+    QTextCursor tmpCursor = ui->updateStatus->textCursor();
+    tmpCursor.movePosition(QTextCursor::End);
+    ui->updateStatus->setTextCursor(tmpCursor);
+    ui->updateStatus->ensureCursorVisible();
+}
+
+void MainWindow::onAppendText(QString text, QString suffix) {
+    // Utils::printInfoMsg(QString("ON APPEND CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
+    QString editText = ui->updateStatus->toPlainText();
+    scrollDownTextEdit();
+
+    if (!suffix.isNull() && suffix.size() > 0) {
+        //qInfo() << "TEXT" << text << "SUFFIX" << suffix;
+        if (suffix == Worker::UPDATE_STEP_SUCCESS || suffix == Worker::UPDATE_STEP_FAIL) {
+            ui->updateStatus->insertPlainText(QString("\n").leftJustified(m_width-3, '=') + " ");
+            // editText += QString("\n").leftJustified(m_width-3, '=');
+            // editText += " ";
+        }
+        QString const &add = (QString("\n") + text).leftJustified(m_width - (2 + suffix.size())) + suffix;
+        ui->updateStatus->insertPlainText(add);
+        // editText += add;
+    } else {
+        QString const &add = text.leftJustified(m_width-9);
+        ui->updateStatus->insertPlainText(add);
+        //editText += add;
+    }
+
+    // debug
+    // QString editText = ui->updateStatus->toPlainText();
+    // Utils::printLineEditInfo(editText.split('\n', QString::SplitBehavior::SkipEmptyParts));
+    // ui->updateStatus->setText(editText.trimmed());
+
+    // scrollDownTextEdit();
+}
+
+void MainWindow::onReplaceLast(QStringList newTextLines, QString suffix) {
+    // Utils::printInfoMsg(QString("ON REPLACE LAST (LIST) CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
+    int const s = newTextLines.size();
+    if (s > 0) {
+        QString editText = ui->updateStatus->toPlainText();
+        QStringList lines = editText.split('\n', QString::SplitBehavior::SkipEmptyParts);
+        QString newText;
+        if (lines.size() >= s) {
+            for (int i = 0; i < s; ++i) {
+                lines.removeLast();
+            }
+            if (lines.size() > 0) {
+                newText = lines.join('\n');
+                newText += '\n';
+            }
+            QStringList newLines;
+            for (int i = 0; i < s; ++i) {
+                if (i == 0 && !suffix.isNull() && suffix.size() > 0 && suffix != "\n") {
+                    newLines += Utils::rstrip(newTextLines.at(i).leftJustified(m_width-10) + suffix);
+                } else {
+                    newLines += Utils::rstrip(newTextLines.at(i).leftJustified(m_width-10));
+                }
+            }
+            lines += newLines;
+            newText += newLines.join(' ');
+        }
+
+        ui->updateStatus->setText(newText);
+        Utils::printLineEditInfo(lines);
+        scrollDownTextEdit();
+    }
+}
+
+void MainWindow::onReplaceLast(QString text, QString suffix) {
+    // Utils::printInfoMsg(QString("ON REPLACE LAST (TEXT) CALLED AT ")
+    //    + QDateTime::currentDateTime().toString(Qt::ISODateWithMs));
+
+    QString editText = ui->updateStatus->toPlainText();
+    QStringList lines = editText.split('\n', QString::SplitBehavior::SkipEmptyParts);
+    if (lines.size() > 0) {
+        lines.removeLast();
+        if (!suffix.isNull() && suffix.size() > 0 && suffix != "\n") {
+            QString const add = text.leftJustified(m_width-10) + suffix;
+            if (!add.isEmpty()) {
+                lines += text.leftJustified(m_width-10) + suffix;
+            }
+        } else {
+            QString const add = text.leftJustified(m_width-10);
+            if (!add.isEmpty()) {
+                lines += text.leftJustified(m_width-10);
+            }
+        }
+    }
+
+    Utils::printLineEditInfo(lines);
+    ui->updateStatus->setText(lines.join('\n').trimmed());
+    scrollDownTextEdit();
+}
+
+void MainWindow::onShowMessage(QString title, QString text) {
+    this->statusBar()->clearMessage();
+    this->statusBar()->showMessage( // timeout: 10000
+        QString(title + " " + text).leftJustified(80, ' '), 10000);
+}
+
+void MainWindow::onShowErrorMessage(QString title, QString text) {
+    onShowMessage(title, text);
+}
+
+void MainWindow::onShowStatusMessage(QString title, QString text) {
+    onShowMessage(title, text);
+}
+
+void MainWindow::onShowErrorMessage(QStringList lst) {
+    if (lst.size() >= 2) {
+        onShowMessage(lst.at(0), lst.at(1));
+    }
+    if (lst.size() == 1) {
+        onShowMessage(lst.at(0), "");
+    }
+}
+
+void MainWindow::onShowStatusMessage(QStringList lst) {
+    if (lst.size() >= 2) {
+        onShowMessage(lst.at(0), lst.at(1));
+    }
+    if (lst.size() == 1) {
+        onShowMessage(lst.at(0), "");
+    }
+}

mainwindow.h

@@ -0,0 +1,77 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QTimer>
+#include <QStatusBar>
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class MainWindow; }
+QT_END_NAMESPACE
+
+#include "worker.h"
+#include "update.h"
+#include "update_dc_event.h"
+
+#define EMERGENCY_LEAVE_BL 0
+
+class hwinf;
+class MainWindow : public QMainWindow {
+    Q_OBJECT
+
+protected:
+    void customEvent(QEvent *event) override;
+
+public:
+    MainWindow(Worker *worker, QWidget *parent = nullptr);
+    ~MainWindow();
+
+    static const int START_PROGRESS_LOOP = -1;
+    static const int STOP_PROGRESS_LOOP = -2;
+    static const int BL_START_COUNT = 5;
+    static const int BL_CHECK_COUNT = 5;
+    static const int BL_IS_UP_COUNT = 5;
+    static const int BL_STOP_COUNT = 5;
+
+    UpdateDcEvent::UpdateStep updateStep() const { return m_updateStep; }
+    void setUpdateStep(UpdateDcEvent::UpdateStep updateStep) { m_updateStep = updateStep; }
+
+public slots:
+    void onAppendText(QString, QString suffix = "");
+    void onReplaceLast(QStringList, QString suffix = "");
+    void onReplaceLast(QString, QString suffix = "");
+    void onShowErrorMessage(QString, QString);
+    void onShowStatusMessage(QString, QString);
+    void onShowErrorMessage(QStringList);
+    void onShowStatusMessage(QStringList);
+    void onStopStartTimer();
+    void onRestartExitTimer();
+    void onEnableExit();
+    void onDisableExit();
+#if EMERGENCY_LEAVE_BL==1
+    void emergencyLeaveBL();
+#endif
+
+signals:
+
+#if EMERGENCY_LEAVE_BL==1
+    void leaveBL();
+#endif
+
+private slots:
+    void onQuit();
+
+private:
+    void scrollDownTextEdit();
+    void onShowMessage(QString, QString);
+
+    Ui::MainWindow *ui;
+    Worker *m_worker;
+    int const m_width;
+    QTimer *m_startTimer;
+    QTimer *m_exitTimer;
+    bool m_progressRunning;
+    //int m_progressValue;
+    UpdateDcEvent::UpdateStep m_updateStep;
+};
+#endif // MAINWINDOW_H

mainwindow.ui

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>480</height>
+   </rect>
+  </property>
+  <property name="font">
+   <font>
+    <family>Source Code Pro</family>
+   </font>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <widget class="QWidget" name="layoutWidget">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>10</y>
+      <width>781</width>
+      <height>441</height>
+     </rect>
+    </property>
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="3" column="2">
+      <widget class="QPushButton" name="exit">
+       <property name="text">
+        <string>Exit</string>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="1">
+      <widget class="QProgressBar" name="updateProgress">
+       <property name="value">
+        <number>1</number>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0" rowspan="3" colspan="3">
+      <widget class="QTextEdit" name="updateStatus">
+       <property name="enabled">
+        <bool>true</bool>
+       </property>
+       <property name="font">
+        <font>
+         <family>Misc Fixed</family>
+         <pointsize>11</pointsize>
+         <bold>true</bold>
+        </font>
+       </property>
+       <property name="verticalScrollBarPolicy">
+        <enum>Qt::ScrollBarAsNeeded</enum>
+       </property>
+       <property name="horizontalScrollBarPolicy">
+        <enum>Qt::ScrollBarAsNeeded</enum>
+       </property>
+       <property name="sizeAdjustPolicy">
+        <enum>QAbstractScrollArea::AdjustToContents</enum>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

message_handler.cpp

@@ -2,15 +2,17 @@
 
 #include <QDateTime>
 #include <cstring>
-
-#define OUTPUT_LEN (20)
+#include <QString>
+#include <QFileInfo>
+#include <QMessageLogContext>
 
 
+static char const *DBG_NAME[] = { "DBG  ", "WARN ", "CRIT ", "FATAL", "INFO " };
 static bool installedMsgHandler = false;
-static QtMsgType debugLevel = QtInfoMsg;
+static int debugLevel = LOG_NOTICE;
 
-QtMsgType getDebugLevel() { return debugLevel; }
-void setDebugLevel(QtMsgType newDebugLevel) {
+int getDebugLevel() { return debugLevel; }
+void setDebugLevel(int newDebugLevel) {
     debugLevel = newDebugLevel;
 }
 
@@ -41,108 +43,53 @@ QtMessageHandler atbInstallMessageHandler(QtMessageHandler handler) {
 ///     return app.exec();
 ///  }
 ///
-#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
-void atbDebugOutput(QtMsgType type, const char *msg) {
-    switch (type) {
-        case QtDebugMsg: {
-            if (debugLevel <= QtDebugMsg) {
-                fprintf(stderr, "%*.*s Debug: %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                    QDateTime::currentDateTime().toString(Qt::ISODate).toStdString().c_str(), msg);
-            }
-        } break;
-        case QtInfoMsg: {
-            if (debugLevel <= QtInfoMsg) {
-                fprintf(stderr, "%*.*s Info: %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                    QDateTime::currentDateTime().toString(Qt::ISODate).toStdString().c_str(), msg);
-            }
-        } break;
-        case QtWarningMsg: {
-            if (debugLevel <= QtWarningMsg) {
-                fprintf(stderr, "%*.*s Warning: %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                    QDateTime::currentDateTime().toString(Qt::ISODate).toStdString().c_str(), msg);
-            }
-        } break;
-        case QtCriticalMsg: {
-            if (debugLevel <= QtCriticalMsg) {
-                fprintf(stderr, "%*.*s Critical: %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                    QDateTime::currentDateTime().toString(Qt::ISODate).toStdString().c_str(), msg);
-            }
-        } break;
-        case QtFatalMsg: {
-            if (debugLevel <= QtFatalMsg) {
-                fprintf(stderr, "%*.*s Fatal: %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                    QDateTime::currentDateTime().toString(Qt::ISODate).toStdString().c_str(), msg);
-            }
-            // abort();
-        } break;
-        default: {
-            fprintf(stderr, "%*.*s No ErrorLevel defined! %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                QDateTime::currentDateTime().toString(Qt::ISODate).toStdString().c_str(), msg);
-        }
-    }
-}
-#elif QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+#if (QT_VERSION > QT_VERSION_CHECK(5, 0, 0) && QT_VERSION < QT_VERSION_CHECK(6, 0, 0))
 void atbDebugOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg) {
-    static constexpr const char *format = "dd.MM.yyyy hh:mm:ss";
-    QByteArray localMsg = msg.toLocal8Bit();
-    const char *file = context.file ? context.file : "";
-    const char *function = context.function ? context.function : "";
-    const char *p = std::strstr(function, "::");
-    if (p) {
-        function = p + 2;
-    }
-    char const* output = std::strrchr(file, '/');
-    if (output) {
-        file = output + 1;
-    }
-    qint64 const currentMSecsSinceEpoch = QDateTime::currentMSecsSinceEpoch();
-    int const fractional_part = currentMSecsSinceEpoch % 1000;
-    QDateTime const datetime = QDateTime::fromMSecsSinceEpoch(currentMSecsSinceEpoch);
-    switch (type) {
-        case QtDebugMsg: {
-            if (debugLevel <= QtDebugMsg) {
-                // fprintf(stderr, "%*.*s          CTX %s (%s:%u) ->\n", OUTPUT_LEN, OUTPUT_LEN,
-                //        "", function, file, context.line);
-                //fprintf(stderr, "%*.*s.%03d DEBG %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                //        datetime.toString(format).toStdString().c_str(), fractional_part,
-                //        localMsg.constData());
-                fprintf(stderr, "%*.*s.%03d DEBUG %s (%s:%u)\n", OUTPUT_LEN, OUTPUT_LEN,
-                        datetime.toString(format).toStdString().c_str(), fractional_part,
-                        localMsg.constData(), file, context.line);
+    Q_UNUSED(context);
+    QString const localMsg = QString(DBG_NAME[type]) + msg.toLocal8Bit();
+
+    switch (debugLevel) {
+        case LOG_DEBUG: { // debug-level message
+            syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+        } break;
+        case LOG_INFO: { // informational message
+            if (type != QtDebugMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
             }
         } break;
-        case QtInfoMsg: {
-            if (debugLevel <= QtInfoMsg) {
-                fprintf(stderr, "%*.*s.%03d INFO %s (%s:%u)\n", OUTPUT_LEN, OUTPUT_LEN,
-                        datetime.toString(format).toStdString().c_str(), fractional_part,
-                        localMsg.constData(), file, context.line);
+        case LOG_NOTICE: { // normal, but significant, condition
+            if (type != QtDebugMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
             }
         } break;
-        case QtWarningMsg: {
-            if (debugLevel <= QtWarningMsg) {
-                fprintf(stderr, "%*.*s.%03d WARN %s (%s:%u)\n", OUTPUT_LEN, OUTPUT_LEN,
-                        datetime.toString(format).toStdString().c_str(), fractional_part,
-                        localMsg.constData(), file, context.line);
+        case LOG_WARNING: { // warning conditions
+            if (type != QtInfoMsg && type != QtDebugMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
             }
         } break;
-        case QtCriticalMsg: {
-            if (debugLevel <= QtCriticalMsg) {
-                fprintf(stderr, "%*.*s.%03d CRIT %s (%s:%u)\n", OUTPUT_LEN, OUTPUT_LEN,
-                        datetime.toString(format).toStdString().c_str(), fractional_part,
-                        localMsg.constData(), file, context.line);
+        case LOG_ERR: { // error conditions
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
             }
         } break;
-        case QtFatalMsg: {
-            if (debugLevel <= QtFatalMsg) {
-                fprintf(stderr, "%*.*s.%03d FATAL %s (%s:%u)\n", OUTPUT_LEN, OUTPUT_LEN,
-                        datetime.toString(format).toStdString().c_str(), fractional_part,
-                        localMsg.constData(), file, context.line);
+        case LOG_CRIT: { // critical conditions
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_ALERT: { // action must be taken immediately
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
+            }
+        } break;
+        case LOG_EMERG: { // system is unusable
+            if (type != QtInfoMsg && type != QtDebugMsg && type != QtWarningMsg) {
+                syslog(LOG_DEBUG, "%s", localMsg.toStdString().c_str());
             }
         } break;
         default: {
-            fprintf(stderr, "%*.*s.%03d No ErrorLevel defined! %s\n", OUTPUT_LEN, OUTPUT_LEN,
-                datetime.toString(format).toStdString().c_str(), fractional_part,
-                msg.toStdString().c_str());
+            //fprintf(stderr, "%s No ErrorLevel defined! %s\n",
+            //    datetime.toStdString().c_str(), msg.toStdString().c_str());
         }
     }
 }

message_handler.h

@@ -2,9 +2,12 @@
 #define MESSAGE_HANDLER_H_INCLUDED
 
 #include <QtGlobal>
+#ifdef __linux__
+#include <syslog.h>
+#endif
 
-QtMsgType getDebugLevel();
-void setDebugLevel(QtMsgType newDebugLevel);
+int getDebugLevel();
+void setDebugLevel(int newDebugLevel);
 
 bool messageHandlerInstalled();
 QtMessageHandler atbInstallMessageHandler(QtMessageHandler handler);

process/command.cpp

@@ -0,0 +1,124 @@
+#include "command.h"
+
+#include <QProcess>
+#include <QDebug>
+#include <QDir>
+#include <QRegularExpression>
+#include <QDateTime>
+
+Command::Command(QString const &command, int start_timeout, int finish_timeout)
+    : m_command(command.trimmed())
+    , m_commandResult("")
+    , m_waitForStartTimeout(start_timeout)
+    , m_waitForFinishTimeout(finish_timeout)
+    , m_exitCode(-1) {
+}
+
+QString Command::getCommandResult() const {
+    return m_commandResult;
+}
+
+void Command::readyReadStandardOutput() {
+    QProcess *p = (QProcess *)sender();
+    m_commandResult += p->readAllStandardOutput();
+    // qCritical() << m_commandResult;
+}
+
+void Command::readyReadStandardError() {
+    QProcess *p = (QProcess *)sender();
+    QByteArray buf = p->readAllStandardError();
+    qCritical() << buf;
+}
+
+void Command::finished(int /*exitCode*/, QProcess::ExitStatus /*exitStatus*/) {
+    QProcess *p = (QProcess *)sender();
+    // read all remaining data sent to the process, just in case
+    QString d = p->readAllStandardOutput();
+    if (!d.isEmpty()) {
+        m_commandResult += d;
+    }
+    disconnect(p, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(readyReadStandardOutput()));
+    disconnect(p, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(readyReadStandardError()));
+}
+
+bool Command::execute(QString workingDirectory, QStringList args) {
+
+    if (!QDir::setCurrent(workingDirectory)) {
+        qCritical() << "SET WORKING_DIRECTORY" << workingDirectory
+                    << "FAILED FOR" << m_command;
+        return false;
+    }
+
+    QScopedPointer<QProcess> p(new QProcess(this));
+    p->setWorkingDirectory(workingDirectory);
+    p->setProcessChannelMode(QProcess::MergedChannels);
+
+    connect(&(*p), SIGNAL(readyReadStandardOutput()), this, SLOT(readyReadStandardOutput()));
+    connect(&(*p), SIGNAL(readyReadStandardError()), this, SLOT(readyReadStandardError()));
+
+    if (!args.isEmpty()) {
+        qDebug() << "START COMMAND" << m_command << "WITH ARGS" << args
+                 << "IN" << p->workingDirectory();
+        p->start(m_command, args);
+    } else {
+        qDebug() << "START COMMAND" << m_command
+                 << "IN" << p->workingDirectory();
+        p->start(m_command);
+    }
+
+    qint64 const start = QDateTime::currentDateTime().toMSecsSinceEpoch();
+
+    if (p->waitForStarted(m_waitForStartTimeout)) {
+        qDebug() << "PROCESS" << m_command << "STARTED IN" << p->workingDirectory();
+        if (p->state() == QProcess::ProcessState::Running) {
+            qDebug() << "PROCESS" << m_command << "RUNNING IN" << p->workingDirectory();
+            // wait forever for git/opkg-commands to finish
+            int wait = m_waitForFinishTimeout;
+            if (m_command.trimmed().startsWith("git", Qt::CaseInsensitive) ||
+                m_command.trimmed().startsWith("opkg", Qt::CaseInsensitive)) {
+                wait = -1;
+            }
+            bool const no_timeout = p->waitForFinished(wait);
+            if (no_timeout) {
+                qDebug() << "PROCESS" << m_command << "FINISHED IN" << p->workingDirectory();
+                if (p->exitStatus() == QProcess::NormalExit) {
+                    if ((m_exitCode = p->exitCode()) == 0) {
+                        qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                        qDebug() << "EXECUTED" << m_command
+                                 << QString("(runtime %1ms)").arg(end-start)
+                                 << "with code" << m_exitCode
+                                 << "IN" << p->workingDirectory();
+                        return true;
+                    } else {
+                        qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                        qCritical() << "EXECUTED" << m_command
+                                    << QString("(runtime %1ms)").arg(end-start)
+                                    << "with code" << m_exitCode
+                                    << "IN" << p->workingDirectory();
+                    }
+                } else {
+                    qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                    qCritical() << "PROCESS" << m_command << "CRASHED with code"
+                                << p->exitCode()
+                                << QString("(after %1ms)").arg(end-start)
+                                << "IN" << p->workingDirectory();
+                }
+            } else {
+                qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+                qCritical() << "PROCESS" << m_command
+                            << "DID NOT FINISH WITH" << wait
+                            << "MS IN" << p->workingDirectory()
+                            << QString("(runtime %1ms)").arg(end-start);
+            }
+        } else {
+            qCritical() << "WRONG PROCESS STATE" << p->state()
+                        << "IN" << p->workingDirectory();
+        }
+    } else {
+        qint64 const end = QDateTime::currentDateTime().toMSecsSinceEpoch();
+        qCritical() << "PROCESS" << m_command << "TIMEOUT AT START"
+                    << QString("(runtime %1ms)").arg(end-start)
+                    << "IN" << p->workingDirectory();
+    }
+    return false;
+}

process/command.h

@@ -0,0 +1,35 @@
+#ifndef COMMAND_H_INCLUDED
+#define COMMAND_H_INCLUDED
+#endif // COMMAND_H_INCLUDED
+
+#include <QObject>
+#include <QCoreApplication>
+#include <QString>
+#include <QStringList>
+#include <QProcess>
+
+
+class Command : public QObject {
+    Q_OBJECT
+
+    QString m_command;
+    QString m_commandResult;
+    int m_waitForStartTimeout;
+    int m_waitForFinishTimeout;
+    int m_exitCode;
+public:
+    explicit Command(QString const &command,
+                     int start_timeout = 100000,
+                     int finish_timeout = 100000);
+
+    QString getCommandResult() const;
+    QString command() const { return m_command; }
+
+    bool execute(QString workingDirectory, QStringList args = QStringList());
+    int exitCode() const { return m_exitCode; }
+
+private slots:
+    void readyReadStandardOutput();
+    void readyReadStandardError();
+    void finished(int exitCode, QProcess::ExitStatus exitStatus);
+};

progress_event.cpp

@@ -0,0 +1,20 @@
+#include "progress_event.h"
+
+QEvent::Type ProgressEvent::customEventType = QEvent::None;
+
+ProgressEvent::ProgressEvent(QObject const *sender, int progressPercent)
+    : QEvent(ProgressEvent::type())
+    , m_sender(sender)
+    , m_progressPercent(progressPercent) {
+}
+
+ProgressEvent::~ProgressEvent() {
+}
+
+QEvent::Type ProgressEvent::type() {
+    if (customEventType == QEvent::None) {
+        int generatedType = QEvent::registerEventType();
+        customEventType = static_cast<QEvent::Type>(generatedType);
+    }
+    return customEventType;
+}

progress_event.h

@@ -0,0 +1,26 @@
+#ifndef PROGRESS_EVENT_H_INCLUDED
+#define PROGRESS_EVENT_H_INCLUDED
+
+#include <QEvent>
+
+class ProgressEvent : public QEvent {
+
+    QObject const *m_sender;
+    int m_progressPercent;
+public:
+    explicit ProgressEvent(QObject const *sender, int progressPercent);
+    virtual ~ProgressEvent();
+    static QEvent::Type type();
+
+    QObject const *sender() { return m_sender; }
+    QObject const *sender() const { return m_sender; }
+
+    void setProgress(int progressPercent) { m_progressPercent = progressPercent; }
+    int progressPercent() { return m_progressPercent; }
+    int progressPercent() const { return m_progressPercent; }
+private:
+    static QEvent::Type customEventType;
+};
+
+
+#endif // PROGRESS_EVENT_H_INCLUDED

update.h

@@ -4,9 +4,12 @@
 #include <QObject>
 #include <QString>
 #include <QFile>
+#include <QDir>
+#include <QByteArray>
+#include <QProcess>
+#include <QPluginLoader>
 
-#include "interfaces.h"
-#include "DCPlugin/include/hwapi.h"
+#include "plugins/interfaces.h"
 
 #ifdef PTU5
 #define SERIAL_PORT "ttymxc2"
@@ -14,43 +17,89 @@
 #define SERIAL_PORT "ttyUSB0"
 #endif
 
-class Update;
-struct ScopedPointerCustomDeleter {
-    static void cleanup(Update *pointer);
-};
-
-// TODO: check hardware compatibility
-// TODO: opkg commandos
-
+class Worker;
 class Update : public QObject {
     Q_OBJECT
 
-    QScopedPointer<hwinf> m_hw;
+    hwinf *m_hw = nullptr;
+    Worker *m_worker = nullptr;
     char const *m_serialInterface;
     char const *m_baudrate;
-    QFile m_update_ctrl_file;
-    QFile m_update_ctrl_file_copy;
+    QString m_customerRepository;
+    QString m_customerNrStr;
+    QString m_branchName;
+    QString m_pluginName;
     QString m_workingDir;
+    bool m_maintenanceMode;
+    bool m_dryRun;
 
-    bool m_init;
+    static QPluginLoader pluginLoader;
 
-    bool updateBinary(char const *fileToSendToDC);
-    bool updatePrinterConf(int nrOfTemplate, char const *fileToSendToDC);
-    bool finishUpdate(bool finish);
-    QStringList getOpenLines();
-    QStringList split(QString line, QChar sep = ',');
-
-    bool execUpdateScript();
 public:
-    explicit Update(QString update_ctrl_file,
-                    QString workingDir = ".",
+    enum class DownloadResult {OK, ERROR, TIMEOUT, NOP};
+    enum class FileTypeJson {CONFIG=1, DEVICE=2, CASH=3, SERIAL=4, TIME=5, PRINTER=6};
+
+    static hwinf *loadDCPlugin(QDir const &plugInDir, QString const &fn);
+    static bool unloadDCPlugin();
+    static QStringList split(QString line, QChar sep = ',');
+
+
+    explicit Update(Worker *worker,
+                    QString customerRepository,
+                    QString customerNrStr,
+                    QString branchName,
+                    QString plugInDir,
+                    QString pluginName,
+                    QString workingDir,
+                    bool dryRun = false,
                     QObject *parent = nullptr,
-                    hwinf *hw = nullptr,
                     char const *serialInterface = SERIAL_PORT,
                     char const *baudrate = "115200");
     virtual ~Update() override;
-    bool doUpdate();
+    bool doUpdate(int &displayIndex, QStringList const &linesToWorkOn);
+
+    hwinf *hw() { return m_hw; }
+    hwinf const *hw() const { return m_hw; }
+
+    //QString customerId() { return m_customerId; }
+    //QString const customerId() const { return m_customerId; }
+
+    QString branchName() { return m_branchName; }
+    QString const branchName() const { return m_branchName; }
+
+    //QString repositoryPath() { return m_repositoryPath; }
+    //QString const repositoryPath() const { return m_repositoryPath; }
+
+private:
+    static QString jsonType(enum FileTypeJson type);
+
+    DownloadResult sendStatus(int ret) const;
+    DownloadResult sendNextAddress(int bNum) const;
+    DownloadResult sendNextDataBlock(QByteArray const &b, int bNum) const;
+    DownloadResult dc_downloadBinary(QByteArray const &binary) const;
+
+    bool startBootloader() const;
+    bool stopBootloader() const;
+    bool openSerial(int br, QString baudrate, QString comPort) const;
+    void closeSerial() const;
+    bool isSerialOpen() const;
+    bool resetDeviceController() const;
+    QByteArray loadBinaryDCFile(QString filename) const;
+    bool downloadBinaryToDC(QString const &bFile) const;
+    bool updateDC(QString bFile) const;
+    bool updatePrinterTemplate(int templateIdx, QString fname) const;
+    bool updateBinary(char const *fileToSendToDC);
+    bool updateConfig(QString jsFileToSendToDC);
+    bool updateCashConf(QString jsFileToSendToDC);
+    bool updateDeviceConf(QString jsFileToSendToDC);
+    bool downloadJson(enum FileTypeJson type, int templateIdx,
+                      QString jsFileToSendToDC) const;
+    QStringList getDcSoftAndHardWareVersion();
+
+private slots:
+    void readyReadStandardOutput();
+    void readyReadStandardError();
+    void finished(int exitCode, QProcess::ExitStatus exitStatus);
 
-    bool const m_delete;
 };
 #endif // UPDATE_H_INCLUDED

update_dc_event.cpp

@@ -0,0 +1,25 @@
+#include "update_dc_event.h"
+
+QEvent::Type UpdateDcEvent::customEventType = QEvent::None;
+
+UpdateDcEvent::UpdateDcEvent(QObject const *sender,
+                             UpdateStep updateStep,
+                             int count,
+                             QDateTime const &sendDateTime)
+    : QEvent(UpdateDcEvent::type())
+    , m_sender(sender)
+    , m_updateStep(updateStep)
+    , m_count(count)
+    , m_sendDateTime(sendDateTime) {
+}
+
+UpdateDcEvent::~UpdateDcEvent() {
+}
+
+QEvent::Type UpdateDcEvent::type() {
+    if (customEventType == QEvent::None) {
+        int generatedType = QEvent::registerEventType();
+        customEventType = static_cast<QEvent::Type>(generatedType);
+    }
+    return customEventType;
+}

update_dc_event.h

@@ -0,0 +1,40 @@
+#ifndef UPDATE_DC_EVENT_H_INCLUDED
+#define UPDATE_DC_EVENT_H_INCLUDED
+
+#include <QEvent>
+#include <QDateTime>
+
+class UpdateDcEvent : public QEvent {
+public:
+    enum UpdateStep { NONE, DC_REBOOT, BL_START, BL_CHECK, BL_CHECK_AFTER_STOP, BL_IS_UP, BL_IS_DOWN, BL_STOP};
+
+private:
+    QObject const *m_sender;
+    UpdateStep m_updateStep;
+    int m_count;
+    QDateTime m_sendDateTime;
+
+public:
+    explicit UpdateDcEvent(QObject const *sender, UpdateStep updateStep,
+                           int count,
+                           QDateTime const &sendDateTime = QDateTime::currentDateTime());
+    virtual ~UpdateDcEvent();
+    static QEvent::Type type();
+
+    QObject const *sender() { return m_sender; }
+    QObject const *sender() const { return m_sender; }
+
+    void setUpdateStep(UpdateStep updateStep) { m_updateStep = updateStep; }
+    UpdateStep updateStep() { return m_updateStep; }
+    UpdateStep updateStep() const { return m_updateStep; }
+    int count() const { return m_count; }
+    void setCount(int count) { m_count = count; }
+    QDateTime &sendDateTime() { return m_sendDateTime; }
+    QDateTime const &sendDateTime() const { return m_sendDateTime; }
+
+private:
+    static QEvent::Type customEventType;
+};
+
+
+#endif // PROGRESS_EVENT_H_INCLUDED

utils.cpp

@@ -1,201 +1,304 @@
 #include "utils.h"
+#include "message_handler.h"
+#include "git/git_client.h"
+
+
+#if defined (Q_OS_UNIX) || defined (Q_OS_LINUX)
+#include "unistd.h"
+#endif
 
-#include <QCoreApplication>
-#include <QApplication>
 #include <QFile>
-#include <QTemporaryFile>
-#include <QDebug>
 #include <QTextStream>
+#include <QDebug>
+#include <QDir>
+#include <QDirIterator>
+#include <QRegularExpression>
 
-#include "interfaces.h"
-#include "DCPlugin/include/hwapi.h"
+#include <fstream>
 
-//#include <unistd.h>
-#include <thread>
-#include <memory>
-#include <QSharedMemory>
-#include <QScopedPointer>
-#include <QProcess>
-
-#define COLUMN_STATUS       (0)
-#define COLUMN_NAME         (1)
-#define COLUMN_DATE_TIME    (2)
-#define COLUMN_RESULT       (3)
-
-Utils::Utils(QString update_ctrl_file,
-             QObject *parent,
-             char const *serialInterface,
-             char const *baudrate)
-    : QObject(parent)
-    , m_hw(new hwapi())
-    , m_serialInterface(serialInterface)
-    , m_baudrate(baudrate)
-    , m_update_ctrl_file(update_ctrl_file)
-    , m_update_ctrl_file_copy(update_ctrl_file + ".copy")
-    , m_in(&m_update_ctrl_file)
-    , m_out(&m_update_ctrl_file_copy)
-    , m_init(true) {
-
-    if (!m_update_ctrl_file.exists()) {
-        qCritical() << "Update-file" << m_update_ctrl_file.fileName()
-                    << "does not exist";
-        m_init = false;
-    }
-    if (!m_update_ctrl_file.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        qCritical() << "can not open " << m_update_ctrl_file.fileName()
-                    << "for reading";
-        m_init = false;
-    }
-    if (!m_update_ctrl_file_copy.open(QIODevice::WriteOnly | QIODevice::Text)) {
-        qCritical() << "can not open " << m_update_ctrl_file_copy.fileName()
-                    << "for writing";
-        m_init = false;
+int Utils::read1stLineOfFile(QString fileName) {
+    QFile f(fileName);
+    if (f.exists()) {
+        if (f.open(QIODevice::ReadOnly | QIODevice::Text)) {
+            QTextStream in(&f);
+            in.setCodec("UTF-8");
+            while(!in.atEnd()) {
+                return in.readLine().toInt();
             }
         }
+    }
+    return -1;
+}
 
-Utils::~Utils() {
+QString Utils::zoneName(quint8 i) {
+    static constexpr char const *zName[] = {
+        "",
+        "purple",
+        "blue",
+        "yellow",
+        "green",
+        "yellow (mars)",
+        "green (mars)"
+    };
+    if (i < (sizeof(zName)/sizeof(char const *))) {
+        return zName[i];
+    }
+    return "N/A";
+}
+
+void Utils::printCriticalErrorMsg(QString const &errorMsg, bool upper, bool lower) {
+    if (upper) qCritical() << QString(80, 'E');
+
+    qCritical() << errorMsg;
+
+    if (lower) qCritical() << QString(80, 'E');
+}
+
+void Utils::printCriticalErrorMsg(QStringList const &errorMsg) {
+    qCritical() << QString(80, 'E');
+    for (int i = 0; i < errorMsg.size(); ++i) {
+        qCritical() << errorMsg.at(i);
+    }
+    qCritical() << QString(80, 'E');
+}
+
+void Utils::printUpdateStatusMsg(QDebug debug, QStringList const &updateMsg) {
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+
+    Q_UNUSED(debug);
+
+    for (int i = 0; i < updateMsg.size(); ++i) {
+        qInfo() << updateMsg.at(i);
+    }
+
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+}
+
+void Utils::printUpdateStatusMsg(QStringList const &updateMsg) {
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+
+    for (int i = 0; i < updateMsg.size(); ++i) {
+        qCritical() << updateMsg.at(i);
+    }
+
+    //if (updateMsg.size() > 1) {
+    //    qCritical() << QString(80, 'U');
+    //}
+}
+
+void Utils::printUpdateStatusMsg(QString const &updateMsg, bool upper, bool lower) {
+    if (upper) qCritical() << QString(80, 'U');
+
+    qCritical() << updateMsg;
+
+    if (lower) qCritical() << QString(80, 'U');
+}
+
+void Utils::printUpdateStatusMsg(QDebug debug, QString const &updateMsg,
+                                 bool upper, bool lower) {
+    if (upper) debug << QString(80, 'U');
+
+    qInfo() << updateMsg;
+
+    if (lower) debug << QString(80, 'U');
 
 }
 
-void Utils::updateBinary(char const *fileToSendToDC) {
-    qDebug() << "file to send to DC ..." << fileToSendToDC;
-    qDebug() << "baudrate ............." << m_baudrate;
-    qDebug() << "serial interface ....." << m_serialInterface;
-    m_hw->dc_updateDC(fileToSendToDC, m_baudrate, m_serialInterface);
-    std::this_thread::sleep_for(std::chrono::milliseconds(3000));
-    QCoreApplication::quit();
+void Utils::printInfoMsg(QString const &infoMsg, bool upper, bool lower) {
+    if (upper) qCritical() << QString(80, 'I');
+
+    qCritical() << infoMsg;
+
+    if (lower) qCritical() << QString(80, 'I');
 }
 
-void Utils::updatePrinterConf(int nrOfTemplate, char const *fileToSendToDC) {
-    QVector<int> printTemplates{ nrOfTemplate };
-    QVector<QString> filesToSend{ fileToSendToDC };
+void Utils::printInfoMsg(QStringList const &infoMsg) {
+    //if (infoMsg.size() > 1) {
+    //    qCritical() << QString(80, 'I');
+    //}
 
-    m_hw->dc_updatePrinterTemplate(hwapi::FileTypeJson::PRINTER,
-                                   printTemplates, filesToSend,
-                                   QString(m_baudrate),
-                                   QString(m_serialInterface));
-    std::this_thread::sleep_for(std::chrono::milliseconds(3000));
-    QCoreApplication::quit();
+    for (int i = 0; i < infoMsg.size(); ++i) {
+        qCritical() << infoMsg.at(i);
     }
 
-QStringList Utils::getOpenLines() {
-    QStringList openLines;
+    //if (infoMsg.size() > 1) {
+    //    qCritical() << QString(80, 'I');
+    //}
+}
 
-    while (!m_in.atEnd()) {
-        QString line = m_in.readLine().trimmed();
-        // QString.split() is defined >= 5.14
-        if (!line.startsWith("OPEN")) {
-            m_out << line;
+void Utils::printLineEditInfo(QStringList const &lines) {
+    if (getDebugLevel() == LOG_DEBUG) {
+        for (int i=0; i<lines.size(); ++i) {
+            qInfo() << lines.at(i);
+        } qInfo() << ""; qInfo() << "";
+    }
+}
+
+QString Utils::getTariffLoadTime(QString fileName) {
+    QFileInfo fInfo(fileName);
+    if (fInfo.exists()) {
+        QDateTime lastModifiedTime = fInfo.lastModified();
+        if (lastModifiedTime.isValid()) {
+            return lastModifiedTime.toString(Qt::ISODateWithMs);
         } else {
-            openLines << line;
-        }
-    }
-    return openLines;
-}
-
-bool Utils::doUpdate() {
-    /*
-        The file referred to by 'update_data' has the following structure for
-        each line:
-
-        # ======================================================================
-        # STATUS    |  NAME  |   DATE  |  RESULT
-        # ======================================================================
-        # where
-        #
-        # STATUS: OPEN or CLOSED
-        # NAME  : If starting with 'opkg' it is an opkg-command to be executed.
-        #         Otherwise its the name of a file which has to be updated.
-        # DATE  : 0000-00-00T00:00:00
-        # RESULT: SUCCESS or ERROR (possibly with description)
-        #
-     */
-    if (!m_init) {
-        return false;
-    }
-
-    QStringList openLines = getOpenLines();
-
-    bool res = false;
-    QList<QString>::const_iterator it;
-    for (it = openLines.cbegin(); it != openLines.cend(); ++it) {
-        int start = 0, end;
-        int column = 0;
-        QString status, name, datetime, result;
-        QString line = *it;
-        while ((end = line.indexOf(QChar(','), start)) != -1) {
-            QString next = line.mid(start, end).trimmed();
-            switch (column) {
-            case COLUMN_STATUS:
-                status = next;
-                break;
-            case COLUMN_NAME:
-                name = next;
-                break;
-            case COLUMN_DATE_TIME:
-                datetime = next;
-                break;
-            case COLUMN_RESULT:
-                result = next;
-                break;
-            }
-            ++column;
-            start = end + 1;
-        }
-
-        if (!status.contains("OPEN")) {
-            qCritical() << "Parsing error for" << m_update_ctrl_file.fileName();
-            return false;
-        }
-        if (name.contains("dc2c") && name.endsWith(".bin")) {
-            updateBinary(name.toStdString().c_str());
-            res = true;
-        } else
-        if (name.contains("DC2C_print") && name.endsWith(".json")) {
-            int i = name.indexOf("DC2C_print");
-            int templateIdx = name.mid(i).midRef(10, 2).toInt();
-            updatePrinterConf(templateIdx, name.toStdString().c_str());
-            res = true;
-        } else
-        if (name.contains("opkg")) {
-            int i = name.indexOf("opkg ");
-            QString rest = name.mid(i).trimmed();
-            QScopedPointer<QProcess> p(new QProcess(this));
-            p->setProcessChannelMode(QProcess::MergedChannels);
-            p->start("opkg", QStringList() << rest);
-            if (p->waitForStarted(1000)) {
-                if (p->state() == QProcess::ProcessState::Running) {
-                    if (p->waitForFinished(10000)) {
-                        QByteArray output = p->readAllStandardOutput();
-                        qCritical() << output;
-                        res = true;
-                    }
+            printCriticalErrorMsg(fileName + " HAS INVALID MODIFIED-TIME");
+            QDateTime birthTime = fInfo.birthTime();
+            if (birthTime.isValid()) {
+                return birthTime.toString(Qt::ISODateWithMs);
+            } else {
+                printCriticalErrorMsg(fileName + " HAS INVALID BIRTH-TIME");
             }
         }
     } else {
-            // TODO
+        printCriticalErrorMsg(fileName + " DOES NOT EXIST");
     }
-        QString resultLine = "CLOSED";
-        resultLine += ", " + name;
-        resultLine += ", " + QDateTime::currentDateTime().toString(Qt::ISODate);
-        resultLine += ", " + (res == true) ? "SUCCESS" : "ERROR";
-        m_out << resultLine;
-    } // for (it = openLines.cbegin(); it != openLines.end(); ++it) {
-
-    return finishUpdate(openLines.size() > 0);
+    return "N/A";
 }
 
-bool Utils::finishUpdate(bool replaceCtrlFile) {
-    if (replaceCtrlFile) {
-        if (!m_update_ctrl_file_copy.exists()) {
+QString Utils::rstrip(QString const &str) {
+    int n = str.size() - 1;
+    for (; n >= 0; --n) {
+        if (!str.at(n).isSpace()) {
+            return str.left(n + 1);
+        }
+    }
+    return "";
+}
+
+bool Utils::sameFilesInDirs(QDir const &dir1, QDir const &dir2,
+                            QStringList const &nameFilters) {
+    if (!dir1.exists()) {
+        printCriticalErrorMsg(dir1.dirName() + " DOES NOT EXIST");
         return false;
     }
-        if (!m_update_ctrl_file.remove()) {
+    if (!dir2.exists()) {
+        printCriticalErrorMsg(dir2.dirName() + " DOES NOT EXIST");
         return false;
     }
-        if (!m_update_ctrl_file_copy.rename(m_update_ctrl_file.fileName())) {
+    if (dir1.absolutePath() == dir2.absolutePath()) {
+        printCriticalErrorMsg(dir1.dirName() + " AND "+ dir2.dirName() + " HAVE SAME PATH");
         return false;
     }
+
+    // files, sorted by name
+    QFileInfoList const &lst1 = dir1.entryInfoList(nameFilters, QDir::Files, QDir::Name);
+    QFileInfoList const &lst2 = dir2.entryInfoList(nameFilters, QDir::Files, QDir::Name);
+
+    QStringList fileNameLst1{};
+    QStringList fileNameLst2{};
+    QListIterator<QFileInfo> i1(lst1);
+    while (i1.hasNext()) {
+        fileNameLst1 << i1.next().fileName();
     }
+    QListIterator<QFileInfo> i2(lst2);
+    while (i2.hasNext()) {
+        fileNameLst2 << i2.next().fileName();
+    }
+
+    if (fileNameLst1.isEmpty()) {
+        qCritical() << "DIR1" << dir1.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+    if (fileNameLst2.isEmpty())  {
+        qCritical() << "DIR1" << dir2.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+    if (fileNameLst1 != fileNameLst2) {
+        printCriticalErrorMsg(dir1.dirName() + " AND " + dir2.dirName()
+                            + " DIFFER: [" + fileNameLst1.join(',') + "],["
+                            + fileNameLst2.join(',') + "]");
+        return false;
+    } else {
+        printInfoMsg(dir1.dirName() + " AND " + dir2.dirName()
+                    + " ARE EQUAL: [" + fileNameLst1.join(',') + "]");
+    }
+
+    QStringList gitBlobLst1{};
+    QStringList gitBlobLst2{};
+    QListIterator<QFileInfo> i3(lst1);
+    while (i3.hasNext()) {
+        gitBlobLst1 << GitClient::gitBlob(i3.next().fileName());
+    }
+    QListIterator<QFileInfo> i4(lst2);
+    while (i4.hasNext()) {
+        gitBlobLst2 << GitClient::gitBlob(i4.next().fileName());
+    }
+
+    if (gitBlobLst1.isEmpty()) {
+        qCritical() << "DIR1" << dir1.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+    if (gitBlobLst2.isEmpty())  {
+        qCritical() << "DIR1" << dir2.dirName() << " DOES NOT CONTAIN EXPECTED FILES";
+        return false;
+    }
+
+    if (gitBlobLst1 != gitBlobLst2) {
+        printCriticalErrorMsg(dir1.dirName() + " AND " + dir2.dirName()
+                            + " DIFFER: [" + gitBlobLst1.join(',') + "],["
+                            + gitBlobLst2.join(',') + "]");
+        return false;
+    } else {
+        printInfoMsg(dir1.dirName() + " AND " + dir2.dirName()
+                    + " CONTAIN SAME GIT-BLOBS FOR FILES: [" + fileNameLst1.join(',') + "]");
+
+    }
+
     return true;
 }
+
+
+QString Utils::getParentName() { // get name of parent process
+    QString ppid = QString("/proc/%1/status").arg(getppid());
+    std::ifstream f(ppid.toStdString().c_str());
+    if (f.is_open()) {
+        std::string next;
+        while (std::getline(f, next)) {
+            QString line = QString(next.c_str()).simplified();
+            if (line.startsWith("Name")) {
+                int const idx = line.indexOf(QChar(':'));
+                if (idx != -1) {
+                    return line.mid(idx+1).trimmed();
+                }
+            }
+        }
+    }
+    return "";
+}
+
+bool Utils::isATBQTRunning() {
+    QDirIterator it("/proc",
+                    QStringList() << "status",
+                    QDir::Files,
+                    QDirIterator::Subdirectories);
+    while (it.hasNext()) {
+        QString const &nextStatusFile = it.next();
+        static const QRegularExpression re("^/proc/[0-9]{1,}/status");
+        QRegularExpressionMatch match = re.match(nextStatusFile);
+        if (match.hasMatch()) {
+            std::ifstream f(nextStatusFile.toStdString().c_str());
+            if (f.is_open()) {
+                std::string next;
+                while (std::getline(f, next)) {
+                    QString line = QString(next.c_str()).simplified();
+                    if (line.startsWith("Name")) {
+                        int const idx = line.indexOf(QChar(':'));
+                        if (idx != -1) {
+                            QString const binary = line.mid(idx+1).trimmed();
+                            if (binary == "ATBQT") {
+                                return true;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    return false;
+}

utils.h

@@ -3,44 +3,33 @@
 
 #include <QObject>
 #include <QString>
+#include <QStringList>
 #include <QFile>
+#include <QFileInfo>
+#include <QDateTime>
+#include <QDir>
+#include <QDebug>
 
-#include <memory>
+namespace Utils {
+    int read1stLineOfFile(QString fileName);
+    QString zoneName(quint8 i);
+    void printCriticalErrorMsg(QString const &errorMsg, bool upper=false, bool lower=false);
+    void printCriticalErrorMsg(QStringList const &errorMsg);
+    void printInfoMsg(QString const &infoMsg, bool upper=false, bool lower=false);
+    void printInfoMsg(QStringList const &infoMsg);
+    void printUpdateStatusMsg(QDebug debug, QStringList const &updateMsg);
+    void printUpdateStatusMsg(QStringList const &updateMsg);
+    void printUpdateStatusMsg(QString const &updateMsg, bool upper=false, bool lower=false);
+    void printUpdateStatusMsg(QDebug debug, QString const &updateMsg, bool upper=false, bool lower=false);
+    void printLineEditInfo(QStringList const &lines);
+    QString getTariffLoadTime(QString fileName);
+    QString rstrip(QString const &str);
+    bool sameFilesInDirs(QDir const &dir1, QDir const &dir2,
+                         QStringList const &nameFilters = {"*.json"});
 
-#include "interfaces.h"
-#include "DCPlugin/include/hwapi.h"
 
-#ifdef PTU5
-#define SERIAL_PORT "ttymxc2"
-#else
-#define SERIAL_PORT "ttyUSB0"
-#endif
+    QString getParentName();
+    bool isATBQTRunning();
+}
 
-class Utils : public QObject {
-    Q_OBJECT
-
-    std::unique_ptr<hwinf> m_hw;
-    char const *m_serialInterface;
-    char const *m_baudrate;
-    QFile m_update_ctrl_file;
-    QFile m_update_ctrl_file_copy;
-    QTextStream m_in;
-    QTextStream m_out;
-
-    bool m_init;
-
-    void updateBinary(char const *fileToSendToDC);
-    void updatePrinterConf(int nrOfTemplate, char const *fileToSendToDC);
-    bool finishUpdate(bool finish);
-    QStringList getOpenLines();
-    static constexpr QChar SEPARATOR = QChar(',');
-
-public:
-    explicit Utils(QString update_ctrl_file,
-                   QObject *parent = nullptr,
-                   char const *serialInterface = SERIAL_PORT,
-                   char const *baudrate = "115200");
-    virtual ~Utils() override;
-    bool doUpdate();
-};
 #endif // UTILS_H_INCLUDED

worker_thread.cpp

@@ -0,0 +1,13 @@
+#include "worker_thread.h"
+
+WorkerThread::WorkerThread(QString const &name,
+                           QObject *parent) : QThread(parent) {
+    this->setObjectName(name);
+}
+
+WorkerThread::~WorkerThread() {
+}
+
+//void WorkerThread::run() {
+//
+//}

worker_thread.h

@@ -0,0 +1,17 @@
+#ifndef WORKER_THREAD_H_INCLUDED
+#define WORKER_THREAD_H_INCLUDED
+
+#include <QThread>
+#include <QString>
+
+class WorkerThread : public QThread {
+    Q_OBJECT
+public:
+    WorkerThread(QString const &name, QObject *parent = nullptr);
+    virtual ~WorkerThread();
+
+protected:
+    // virtual void run();
+};
+
+#endif // WORKER_THREAD_H_INCLUDED