#!/usr/bin/env bash
# Author:  Oliver Ladner <oli@lugh.ch>
# License: LGPL
#
# Fetches all your delicious bookmarks
# and validates the XML before saving.
# Requires xmlstarlet

DEL_USER=foo
DEL_PASS=bar
API_URL=api.del.icio.us/v1/posts/all
BKP_FILE=/home/username/deliciousbackup.xml

# When no backup exists, just do it
if [ ! -f $BKP_FILE ]; then
	curl -s https://$DEL_USER:$DEL_PASS@$API_URL > $BKP_FILE
else
	curl -s https://$DEL_USER:$DEL_PASS@$API_URL > $BKP_FILE.tmp
	if [ $(xmlstarlet validate $BKP_FILE.tmp > /dev/null 2>&1; echo $?) -gt 0 ]; then
		rm $BKP_FILE.tmp
		echo "Downloaded XML file not valid. Previous backup preserved."
	# if XML is valid, move to final destination
	else
		mv $BKP_FILE.tmp $BKP_FILE
	fi
fi