Update .fonctions

scripts/.fonctions

@@ -437,3 +437,29 @@ ynh_find_port () {
 	done
 	echo $port
 }
+
+extract_source() {
+  sudo rm -rf /var/www/scrumblr  
+  sudo git clone https://github.com/aliasaria/scrumblr.git /var/www/$app  \
+    || ynh_die "Unable to download source"
+}
+
+check_or_install_npm() {
+  if ! dpkg -s npm | grep "installed" > /dev/null 2>&1 \
+       || ! dpkg -s nodejs-legacy | grep "installed" > /dev/null 2>&1; then
+    sudo apt-get update
+    sudo apt-get install -y npm nodejs-legacy
+  fi
+}
+
+pre_inst_scrumblr() {
+  # Add user if not exist
+  id -g "$app" &>/dev/null || sudo addgroup "$app" --system --quiet
+  id -u "$app" &>/dev/null || sudo adduser "$app" \
+      --ingroup "$app" --system --quiet --shell /bin/bash
+
+  # Configure init script
+  sudo cp ../conf/"$app".service /etc/systemd/system/
+  sudo systemctl daemon-reload
+  sudo systemctl enable "$app".service
+}