freshrss_ynh/scripts/upgrade

#!/bin/bash
# Exit on command errors and treat unset variables as an error
set -eu

# Load common variables and helpers
. ./_common.sh

# Source app helpers
. /usr/share/yunohost/helpers

app=$YNH_APP_INSTANCE_NAME
FINAL_PATH="/var/www/$app"

#install php dependencies if necessary
install_freshrss_dependencies

# Check destination directory
[[ ! -d $FINAL_PATH ]] && ynh_die \
"The destination directory '$FINAL_PATH' does not exist.\
The app is not correctly installed, you should remove it first."

#old version cleanup
if [ -f $FINAL_PATH/data/user.php.dist ]; then
    sudo rm $FINAL_PATH/data/user.php.dist
fi

# Create tmp directory and install app inside
TMPDIR=$(mktemp -d)
sudo chmod 755 "$TMPDIR"
extract_freshrss "$TMPDIR"

# Restore config
sudo rm $TMPDIR/data/do-install.txt
sudo cp $FINAL_PATH/data/config.php $TMPDIR/data/config.php
sudo cp -r $FINAL_PATH/data/users/. $TMPDIR/data/users/
sudo cp -r $FINAL_PATH/extensions/. $TMPDIR/extensions/

# Set permissions to freshrss directory
sudo chown -R root:root $TMPDIR
sudo chown -R www-data: $TMPDIR/data/
sudo chown -R www-data: $TMPDIR/extensions/

# Clean up existing files and copy new files to the right place
sudo rm -rf "$FINAL_PATH"
sudo cp -rp "$TMPDIR" "$FINAL_PATH"