Batch convert SVGs to PDF using Inkscape

svg2pdf.sh

#!/bin/zsh

IMAGE_DIR=$1
INK="/Applications/Inkscape.app/Contents/MacOS/inkscape"
SCRIPT="inkscript"
COUNT=0

# If gdate is available (brew install coreutils), we can show precise timing info
type -a gdate &> /dev/null && HAS_GDATE=1

# Make a script for Inkscape's --shell mode
makeInkScript() {
    for file in *.svg ; do
        echo << EOF >> ${SCRIPT}
file-open:${file}
export-filename:${file}.pdf
export-type:pdf
export-do
file-close:${file}
EOF
        COUNT=$((COUNT += 1)) 
    done
    echo "Batching ${COUNT} images..."
}

doAllThatStuff() {
    cat ${SCRIPT} | ${INK} --shell &> /dev/null
}

pushd $IMAGE_DIR

[ ! -z $HAS_GDATE ] && INK_START=$(gdate +%s.%N)
makeInkScript
[ ! -z $HAS_GDATE ] && INK_END=$(gdate +%s.%N)

if [ ! -z $HAS_GDATE ] ; then
    echo -n "Time required to compose Inkscape script: "
    echo $((INK_END - INK_START))
fi

[ ! -z $HAS_GDATE ] && CONVERT_START=$(gdate +%s.%N)
doAllThatStuff > /dev/null
[ ! -z $HAS_GDATE ] && CONVERT_END=$(gdate +%s.%N)

if [ ! -z $HAS_GDATE ] ; then
    echo -n "Time required to convert images: "
    echo $((CONVERT_END - CONVERT_START))
fi

popd

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