CT: kavita added

CT-Files/kavita/Scripts/UpdateKavita.sh

@@ -0,0 +1,20 @@
+#!/bin/ash
+NewKavitaVersion=$(curl -s https://api.github.com/repos/Kareadita/Kavita/releases/latest | grep 'tag_name.*' | cut -d : -f 2,3 | tr -d \" |tr -d , |tr -d " " |tr -d : )
+if test "$NewKavitaVersion" = "$(cat /opt/kavita-installed)" ; then
+    echo 'Kavita up-to-date'
+    exit
+else
+    echo 'Updating Kavita'
+    service kavita stop
+    mv /opt/kavita/config /tmp/kavitacfg
+    curl -L --retry 7 --retry-delay 5 https://github.com/Kareadita/Kavita/releases/download/$NewKavitaVersion/kavita-linux-musl-x64.tar.gz -o "/tmp/kavita.tar.gz" || exit 
+    rm -rf /opt/kavita/*
+    tar -C /opt/kavita --strip-components=1 -xf /tmp/kavita.tar.gz
+    chown kavita: -R /opt/kavita
+    rm -rf /tmp/kavita.tar.gz
+    mv /tmp/kavitacfg/* /opt/kavita/config
+    setcap 'cap_net_bind_service=+ep' /opt/kavita/Kavita
+    chmod +x /opt/kavita/Kavita
+    echo $NewKavitaVersion > /opt/kavita-installed
+    service kavita start
+fi