#!/bin/bash

# usage: disk_size <disk-name> <output-file>

# Creates an "ini" output file suitable for php parse_ini_function which describes
# the size of <user-share> takes up on the selected disk.
# Since this uses the 'du' command, could take awhile.

disk="$1"
output="/var/local/emhttp/$disk.$2"
total=0;

echo "Computing share usage for $disk..."
rm -f "$output"

function check {
  folder="/mnt/$2/$1"
  if [[ -e "$folder" ]] ; then
    echo "calculating $1 usage..."
    size=$(du -sb "$folder"|cut -f1)
    echo "$1=$size" >>"$output"
    total=$(($total + $size))
  fi
}
while IFS=$'\n' read -r share; do
 [[ -d $share ]] && check "$(basename "$share")" "$disk"
done <<< $(ls -vd /mnt/user/*)
echo "share.total=$total" >>"$output"
echo "total disk usage: $total"