transmission_ynh/scripts/upgrade

#!/bin/bash                                                                                                                                                                                      

# Retrieve arguments
domain=$(sudo yunohost app setting transmission domain)
path=$(sudo yunohost app setting transmission path)

# Remove trailing "/" for next commands
path=${path%/}

# Open port in firewall
sudo yunohost firewall allow TCP 51413 > /dev/null 2>&1

# Upgrade official debian package
sudo apt-get install transmission-daemon -y -qq 

# Make directories and set rights
sudo mkdir -p /home/yunohost.transmission/{progress,completed}
sudo chgrp debian-transmission /home/yunohost.transmission/{progress,completed}
sudo chmod 770 -R /home/yunohost.transmission/{progress,completed}

# Configure Transmission and reload
sed -i "s@PATHTOCHANGE@$path@g" ../conf/settings.json
sudo cp ../conf/settings.json /etc/transmission-daemon/settings.json
sudo service transmission-daemon reload

# Configure Nginx and reload
sed -i "s@PATHTOCHANGE@$path@g" ../conf/nginx.conf
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/transmission.conf
sudo service nginx reload