wwwbackup

#!/usr/bin/env bash

# wwwbackup: back woodruffw.us files up to tarball, rotate weekly

if [[ "$(hostname)" != "athena" ]] ; then
	echo "Wrong host, dummy."
	exit 1
fi

shopt -s nullglob

cap="7" # don't go over 7 stored backups
www_root="/usr/share/nginx/html"
backup_dir="${HOME}/www_backups"
backup_slug="${backup_dir}/$(date +%Y-%m-%d).tar.gz"

mkdir -p "${backup_dir}"

tar czf "${backup_slug}" "${www_root}"

old_backups=$(ls ${backup_dir}/*.tar.gz | sort -r | sed -e "1,${cap}d")

[[ -n "${old_backups}" ]] && echo "${old_backups}" | xargs rm