fix: apply required changes due to introduction of PolicyKit and PackageKit in Moonraker

docs/changelog.md

@@ -2,6 +2,13 @@
 
 This document covers possible important changes to KIAUH.
 
+### 2022-01-29
+* Starting from the 28th of January, Moonraker can make use of PackageKit and PolicyKit.\
+More details on that can be found [here](
+https://github.com/Arksine/moonraker/issues/349) and [here](https://github.com/Arksine/moonraker/pull/346)
+* KIAUH will install Moonrakers PolicyKit rules by default when __installing__ Moonraker
+* KIAUH will also install Moonrakers PolicyKit rules when __updating__ Moonraker __via KIAUH__ as of now
+
 ### 2021-12-30
 * Updated the doc for the usage of the [G-Code Shell Command Extension](docs/gcode_shell_command.md)
 * It became apparent, that some user groups are missing on some systems. A missing video group \

resources/moonraker.service

@@ -8,6 +8,7 @@ WantedBy=multi-user.target
 
 [Service]
 Type=simple
+SupplementaryGroups=moonraker-admin
 User=%USER%
 RemainAfterExit=yes
 ExecStart=%MR_ENV%/bin/python %MR_DIR%/moonraker/moonraker.py -l %MR_LOG% -c %MR_CONF%

scripts/install_moonraker.sh

@@ -111,6 +111,9 @@ moonraker_setup(){
   ### step 4: create final moonraker instances
   create_moonraker_service
 
+  ### step 5: create polkit rules for moonraker
+  moonraker_polkit
+
   ### confirm message
   if [[ $INSTANCE_COUNT -eq 1 ]]; then
     CONFIRM_MSG="Moonraker has been set up!"
@@ -297,3 +300,22 @@ print_mr_ip_list(){
     i=$((i + 1))
   done
 }
+
+### introduced due to
+### https://github.com/Arksine/moonraker/issues/349
+### https://github.com/Arksine/moonraker/pull/346
+moonraker_polkit(){
+  SYSTEMDDIR="/etc/systemd/system"
+  MOONRAKER_SERVICES=$(find "$SYSTEMDDIR" -regextype posix-extended -regex "$SYSTEMDDIR/moonraker(-[^0])?[0-9]*.service")
+  for service in $MOONRAKER_SERVICES; do
+    HAS_SUPP="$( grep -cm1 "SupplementaryGroups=moonraker-admin" "$service" || true )"
+    if [ "$HAS_SUPP" -eq 0 ]; then
+      status_msg "Adding moonraker-admin supplementary group to $service ..."
+      sudo sed -i "/^Type=simple$/a SupplementaryGroups=moonraker-admin" "$service" \
+      && ok_msg "Adding moonraker-admin supplementary group successfull!"
+    fi
+  done
+  ### execute moonrakers policykit-rules script
+  "${HOME}"/moonraker/scripts/set-policykit-rules.sh
+  sudo systemctl daemon-reload
+}

scripts/update.sh

@@ -283,13 +283,17 @@ update_moonraker(){
   bb4u "moonraker"
   status_msg "Updating Moonraker ..."
   ### pull latest files from github
-  cd $MOONRAKER_DIR && git pull
+  cd "$MOONRAKER_DIR" && git pull
   ### read PKGLIST and install possible new dependencies
   install_moonraker_packages
   ### install possible new python dependencies
   MR_REQ_TXT="$MOONRAKER_DIR/scripts/moonraker-requirements.txt"
-  $MOONRAKER_ENV/bin/pip install -r $MR_REQ_TXT
+  "$MOONRAKER_ENV"/bin/pip install -r "$MR_REQ_TXT"
   update_log_paths "moonraker"
+
+  ### required due to https://github.com/Arksine/moonraker/issues/349
+  moonraker_polkit
+
   ok_msg "Update complete!"
   do_action_service "restart" "moonraker"
 }