A script to generate android assets from a SVG file. Requires inkscape to resize and convert.

svg-to-android.sh

#!/bin/bash

USAGE="Usage is: ./svg-to-android.sh <svg_file> <exported_png_name> <width_dp> <height_dp> [resources_dir] \n	\
        If 'resources_dir' is ommited, a new folder is created in the current directory, named after the svg name.\n \
        Param 'exported_png_name' does not need extension.\n \
        On Mac OS specify full path for svg file and resources directory.\n \
	Exiting."

if [[ -z "$1" ]];
then
	echo "No SVG file specified." 
	echo -e $USAGE
	exit -1
fi

ispng=$(file $1)
echo $ispng | grep -q SVG

if [[ $? -ne 0 ]];
then
	echo "Invalid SVG file."
	echo -e $USAGE
	exit -2
fi


# Parse PNG final name 
if [[ -z "$2" ]]; 
then
	echo "Invalid PNG name." 
	echo -e $USAGE
	exit 0
else
        BASE="$2"
fi

# Parse image DP Width (aka, pixel size at mdpi)
if [[ -z "$3" ]]; 
then
	echo "Missing width!"
        echo -e $USAGE
        exit -1
else
        W="$3"
fi

# Parse image DP Height (aka, pixel size at mdpi)
if [[ -z "$4" ]]; 
then
	echo "Missing height!"
        echo -e $USAGE
        exit -1
else
        H="$4"
fi

# Parse directory to export 
if [[ -z "$5" ]]; 
then
	resroot=`basename $1`
else
        resroot="$5"
fi


DPINAME=("mdpi" "hdpi" "xhdpi" "xxhdpi" "xxxhdpi")
MULT_FACTOR=(1.0 1.5 2.0 3.0 4.0)

for ((ii=0;ii<5;ii++));
do
	echo "Processing $1 for ${DPINAME[$ii]}@${W[$ii]} px"
	suffix=${DPINAME[$ii]}
	dirname=$resroot/res/drawable-${DPINAME[$ii]}
	mkdir -p "$dirname"
	fname="$dirname"/"$BASE".png
	
	mult=${MULT_FACTOR[$ii]}
	width=$(bc -l <<< "(${mult} * ${W})")
	height=$(bc -l <<< "(${mult} * ${H})")

	inkscape -z -f=$1 --export-png="$fname" \
		-w=${width} -h=${height}
done