Reset grumpyscreen config when needed

meta-opencentauri/recipes-apps/grumyscreen/files/grumpyscreen.cfg

@@ -1,3 +1,8 @@
+# -----
+# PLEASE DO NOT EDIT THIS FILE. EDIT grumpyscreen.cfg INSTEAD.
+# UPDATES WILL RESET THIS FILE. YOUR EDITS WILL BE LOST WHEN UPDATING.
+# -----
+
 [default_macros]
 cooldown: TURN_OFF_HEATERS
 extrude: _GUPPYSCREEN_EXTRUDE EXTRUDER_TEMP={} EXTRUDE_LEN={} SPEED={}

meta-opencentauri/recipes-apps/grumyscreen/files/grumpyscreen.init

@@ -10,13 +10,48 @@
 
 GRUMPYSCREEN_EXEC=/usr/bin/grumpyscreen
 PIDFILE=/var/run/gui.pid
+CONFIG_FILE="/etc/klipper/config/grumpyscreen-readonly/grumpyscreen.cfg"
+CONFIG_OVERRIDE_FILE="/etc/klipper/config/grumpyscreen.cfg"
+CONFIG_VERSION="20260518"
+CONFIG_VERSION_FILE="/etc/grumpyscreen-config.ver"
+CONFIG_BACKUP_DIR="/etc/klipper/config/config-backups"
 
-export CONFIG_FILE=/etc/klipper/config/grumpyscreen.cfg
+export CONFIG_FILE
+export CONFIG_OVERRIDE_FILE
+
+ensure_grumpyscreen_config_version() {
+    current_version=""
+
+    if [ -f "$CONFIG_VERSION_FILE" ]; then
+        current_version="$(tr -d '[:space:]' < "$CONFIG_VERSION_FILE" 2>/dev/null)"
+    else
+        current_version="" #reset configs
+        echo "$current_version" > "$CONFIG_VERSION_FILE" || return 1
+    fi
+
+    if [ "$current_version" = "$CONFIG_VERSION" ]; then
+        return 0
+    fi
+
+    if [ -f "$CONFIG_OVERRIDE_FILE" ]; then
+        backup_timestamp="$(date +%Y%m%d_%H%M%S)" || return 1
+        backup_file="$CONFIG_BACKUP_DIR/grumpyscreen-$backup_timestamp.cfg"
+
+        mkdir -p "$CONFIG_BACKUP_DIR" || return 1
+        cp "$CONFIG_OVERRIDE_FILE" "$backup_file" || return 1
+        echo "# Add other extra configuration here.\n" > "$CONFIG_OVERRIDE_FILE"
+    fi
+
+    printf '%s\n' "$CONFIG_VERSION" > "$CONFIG_VERSION_FILE" || return 1
+}
 
 case "$1" in
     start)
         echo "Starting grumpyscreen..."
-        # Start grumpyscreen in the background
+        if ! ensure_grumpyscreen_config_version; then
+            echo "Failed to update Grumpyscreen config version state"
+            exit 1
+        fi
         start-stop-daemon -S -b -m -p "$PIDFILE" -x "$GRUMPYSCREEN_EXEC"
         ;;
     stop)

meta-opencentauri/recipes-apps/grumyscreen/grumpyscreen_20260518.bb

@@ -87,7 +87,10 @@ do_install() {
 
     install -d ${D}${sysconfdir}/klipper
     install -d ${D}${sysconfdir}/klipper/config
-    install -m 0644 ${WORKDIR}/grumpyscreen.cfg ${D}${sysconfdir}/klipper/config/
+    echo "# Add other extra configuration here.\n" > ${D}${sysconfdir}/klipper/config/grumpyscreen.cfg
+
+    install -d ${D}${sysconfdir}/klipper/config/grumpyscreen-readonly
+    install -m 0644 ${WORKDIR}/grumpyscreen.cfg ${D}${sysconfdir}/klipper/config/grumpyscreen-readonly/
 
     install -d ${D}${sysconfdir}/init.d
     install -m 0755 ${WORKDIR}/grumpyscreen.init ${D}${sysconfdir}/init.d/grumpyscreen
@@ -97,7 +100,11 @@ FILES:${PN} = " \
     ${bindir}/grumpyscreen \
     ${datadir}/grumpyscreen \
     ${sysconfdir}/klipper/config/grumpyscreen.cfg \
+    ${sysconfdir}/klipper/config/grumpyscreen-readonly/grumpyscreen.cfg \
     ${sysconfdir}/init.d/grumpyscreen \
 "
 
-CONFFILES:${PN} = "${sysconfdir}/klipper/config/grumpyscreen.cfg"
+CONFFILES:${PN} = " \
+    ${sysconfdir}/klipper/config/grumpyscreen.cfg \
+    ${sysconfdir}/klipper/config/grumpyscreen-readonly/grumpyscreen.cfg \
+"