Function to remove wiki

src/freedombone-app-wiki

 WIKI_CODE=
 WIKI_ONION_PORT=8089
 
+function remove_wiki {
+	if ! grep -Fxq "install_wiki" $COMPLETION_FILE; then
+		return
+	fi
+	function_check remove_onion_service
+	remove_onion_service wiki ${WIKI_ONION_PORT}
+	nginx_dissite $WIKI_DOMAIN_NAME
+	if [ -f /etc/nginx/sites-available/$WIKI_DOMAIN_NAME ]; then
+		rm /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
+	fi
+	apt-get -y remove --purge dokuwiki
+	if [ ! -d /var/www/$WIKI_DOMAIN_NAME ]; then
+		rm -rf /var/www/$WIKI_DOMAIN_NAME
+	fi
+	if [ -d /var/lib/dokuwiki ]; then
+		rm -rf /var/lib/dokuwiki
+	fi
+	if [ -d /etc/dokuwiki ]; then
+		rm -rf /etc/dokuwiki
+	fi
+	if [ -d /usr/share/dokuwiki ]; then
+		rm -rf /usr/share/dokuwiki
+	fi
+	sed -i '/install_wiki/d' $COMPLETION_FILE
+}
+
 function get_wiki_admin_password {
 	if [ -f /home/$MY_USERNAME/README ]; then
 		if grep -q "Wiki password" /home/$MY_USERNAME/README; then
 		echo "\$conf['authtype'] = 'authplain';" >> /etc/dokuwiki/local.php
 	fi
 
-    function_check get_wiki_admin_password
+	function_check get_wiki_admin_password
 	get_wiki_admin_password
 	if [ ! $WIKI_ADMIN_PASSWORD ]; then
 		if [ -f $IMAGE_PASSWORD_FILE ]; then
 	echo '    }' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
 	echo '}' >> /etc/nginx/sites-available/$WIKI_DOMAIN_NAME
 
-    function_check create_site_certificate
+	function_check create_site_certificate
 	create_site_certificate $WIKI_DOMAIN_NAME
 
-    function_check configure_php
+	function_check configure_php
 	configure_php
 
 	nginx_ensite $WIKI_DOMAIN_NAME
 
 	echo "Wiki onion domain:${WIKI_ONION_HOSTNAME}" >> $COMPLETION_FILE
 
-    function_check add_ddns_domain
+	function_check add_ddns_domain
 	add_ddns_domain $WIKI_DOMAIN_NAME
 
 	# add some post-install instructions