#!/bin/sh
# Written by Michal Kosmulski <mkosmul _at_ users _dot_ sourceforge _dot_ net>
# This script is hereby put in the public domain.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Display a dialog box with a progress bar showing how much of a file
# has been downloaded.
# Parameters:
# $1 file name
# $2 final file size (in bytes)
# Uses zenity
if [ $# != 2 ]; then
	echo "Usage:"
	echo "$0 file_name final_size"
	exit 1;
fi
name="$1"
final_size="$2"
size=0
( 
	while (( size < final_size )); do
		if [ -f "$name" ]; then
			size=`ls -l "$name" | awk '{print $5}'`; 
		else
			size=0
		fi
		echo -e '#'"${name}: ${size} of ${final_size}"; 
		echo -e "100*${size}/${final_size};\nquit\n" | bc; 
		sleep 1; 
	done
	echo '#'"${name}: Finished downloading - ${size} of ${final_size}";
) | zenity --title="Downloading file ${name}" --progress --percentage=0