Systemd changes | root script | URL support for gif effects (#1319)

* Systemd changes and URL option for Gif Effects
* Add grayscale to gif effect
* WebUI adjustments
* Rename version to .version
* Copy runHyperionAsRoot.sh to rpi packages
* Pack script into all unix packages
* Start hyperion only after network is available
* Snap builds removed due to poor server connection
* Flexible updateHyperionUser.sh
* updateHyperionUser script entered in the package
* Print help on none sudo execute
* Corrected embedded Python location
* Replacement for the QWindowsScreen grabWindow function
* Updated to latest 2.x mbedtls version 2.27

Co-authored-by: LordGrey <lordgrey.emmel@gmail.com>

bin/scripts/updateHyperionUser.sh

@@ -0,0 +1,92 @@
+#!/bin/bash -e
+
+# help print function
+function printHelp {
+echo "The script updates the user Hyperion is executed by system and service manager (after start-up).
+Without arguments it will configure Hyperion being executed under the current user.
+The script must be executed as root, i.e. sudo $0
+
+Options:
+-u username   The user name Hyperion to executed to be with
+-h            Shows this help message and exits"
+}
+
+function prompt () {
+        while true; do
+                read -p "$1 " yn
+                if [[ $yn = "" ]]; then
+                        echo "Please answer Yes or No."
+                else
+                        case "${yn:-Y}" in
+                                [Yes]* ) return 1;;
+                                [No]* ) return 0;;
+                                * ) echo "Please answer Yes or No.";;
+                        esac
+                fi
+        done
+}
+
+# Default username
+USERNAME=${SUDO_USER}
+
+while getopts u:h option
+do
+ case "${option}"
+ in
+ u) USERNAME=${OPTARG};;
+ v) _VERBOSE=1;;    
+ h) printHelp; exit 0;;
+ esac
+done
+
+if [ "`id -u`" -ne 0 ]; then
+	printHelp
+	exit 99
+fi
+
+if ! id ${USERNAME} >/dev/null 2>&1; then
+	echo "The given username \"${USERNAME}\" does not exist. Exiting..."
+	exit 99
+fi
+
+echo "Configure the hyperion daemon to be executed under user: ${USERNAME}"
+
+if [ ${USERNAME} == "root" ]; then
+	echo ''
+	echo 'You asked to run Hyperion with root privileges. This poses a security risk!'
+	echo 'It is recommended not to do so unless there are good reasons (e.g. WS281x usage).'
+	if prompt 'Are you sure you want to run Hyperion under root? [Yes/No]'; then
+		echo 'No updates will be done. Exiting...'
+		exit 99
+	fi
+fi
+
+#Disable current service
+CURRENT_SERVICE=$(systemctl --type service | { grep -o "hyperion.*@.*\.service" || true; })
+if [[ ! -z ${CURRENT_SERVICE} ]]; then
+	CURRENT_SERVICE_USER=$(expr "${CURRENT_SERVICE}" : 'hyperion.*@\(.*\).service')
+	if [ "${USERNAME}" == "${CURRENT_SERVICE_USER}" ]; then
+		echo "Hyperion is already running under the user: ${USERNAME}. No updates required."
+		exit 0;
+	fi
+	echo "Disable current service: ${CURRENT_SERVICE}"
+	systemctl is-active --quiet ${CURRENT_SERVICE} && systemctl disable --quiet ${CURRENT_SERVICE} --now >/dev/null 2>&1
+fi
+
+HYPERION="hyperion"
+#Downward compatibility
+if [[ ${CURRENT_SERVICE} == hyperiond* ]]; then
+	HYPERION="hyperiond"
+fi
+
+#Enable new service
+NEW_SERVICE="${HYPERION}@${USERNAME}.service"
+echo "Restarting Hyperion Service: ${NEW_SERVICE}"
+systemctl enable --quiet ${NEW_SERVICE} --now >/dev/null 2>&1
+
+# Update HyperBian splash screen
+sed -i "s/${CURRENT_SERVICE}/${NEW_SERVICE}/" /etc/update-motd.d/10-hyperbian >/dev/null 2>&1
+
+echo "Done."
+exit 0
+