Script to convert SVG's into (many different res) drawables.

Adapted from 3ee3b4aad8/original/convert.sh

F-Droid/tools/svg-to-drawables.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+
+# Originally by https://github.com/vitriolix/storymaker-art/blob/3ee3b4aad8db4fd24290b0173e8129a3d0e5299d/original/convert.sh,
+# then modified to make it generic and able to be used by any Android project.
+#
+# Requires ImageMagick to be installed.
+# Some builds of ImageMagick on OSX have problems generating the images correctly.
+#
+# This script scales and creates images at the correct dpi level for Android.
+# When creating svg files set the image size to the size that you want your hdpi images to be.
+
+function usage {
+	echo $1
+	echo ""
+	echo "USAGE: svg-to-drawable.sh svg-image res-directory [manually-scaled-res-directory]"
+	echo "  svg-image                      Path to the .svg image to convert"
+	echo "  res-directory                  Usually \"res\" in your android project"
+	echo "  manually-scaled-res-directory  Put manually scaled images in this dir, useful for, e.g. differing levels of details"
+	exit
+}
+
+SVG_FILE=$1
+OUTPUT_RES_DIR=$2
+SCALED_RES_DIR=$3
+
+RES_NORMAL=drawable
+RES_XXXHDPI=drawable-xxxhdpi
+RES_XXHDPI=drawable-xxhdpi
+RES_XHDPI=drawable-xhdpi
+RES_HDPI=drawable-hdpi
+RES_MDPI=drawable-mdpi
+RES_LDPI=drawable-ldpi
+
+if (( $# < 2 ))
+then
+	usage "ERROR: Requires at least svg-image and res-directory to be passed to script"
+elif [ ! -d $OUTPUT_RES_DIR ]
+then
+	usage "ERROR: $OUTPUT_RES_DIR is not a directory"
+fi
+
+function convert_drawable {
+	DIR=$1
+	FILE_PATH=$2
+	FILE_NAME=`basename $FILE_PATH`
+	SCALE=$3
+	PNG_FILE=${FILE_NAME/.svg}.png
+	DRAWABLE_DIR=$OUTPUT_RES_DIR/$DIR
+	OUTPUT_PATH=$DRAWABLE_DIR/$PNG_FILE
+
+	if [ ! -d $DRAWABLE_DIR ]; then
+		mkdir $DRAWABLE_DIR
+	fi
+
+	if [ -f $OUTPUT_PATH ]; then
+		rm $OUTPUT_PATH
+	fi
+
+	INFO=""
+	if [ -f $SCALED_RES_DIR/$DIR/$FILE_NAME ]; then
+		INFO=" (Using manually scaled file from $DIR/$FILE_NAME)"
+		convert -background none $SCALED_RES_DIR/$DIR/$FILE $OUTPUT_PATH || exit
+	else
+		INFO=" (Scaled by $SCALE%)"
+		convert -background none $FILE_PATH[$SCALE%] $OUTPUT_PATH || exit
+	fi
+	echo "  $OUTPUT_PATH$INFO"
+
+}
+
+echo "Processing $SVG_FILE" 
+convert_drawable $RES_NORMAL  $SVG_FILE 100
+convert_drawable $RES_XXXHDPI $SVG_FILE 150
+convert_drawable $RES_XXHDPI  $SVG_FILE 125
+convert_drawable $RES_XHDPI   $SVG_FILE 100
+convert_drawable $RES_HDPI    $SVG_FILE 75
+convert_drawable $RES_MDPI    $SVG_FILE 50
+convert_drawable $RES_LDPI    $SVG_FILE 37.5