ITF Barcodes Lesesaal Systematik

#!/bin/bash

set -euo pipefail

# 1. You must have Python 3.x available and install a dependency: pip install python-barcode
# 2. You must have ImageMagick installed (the convert command)

# This file has the following format for each line: "<signatur>,<katalognummer>". Example: "VBA 001,7702300006"
CODES_FILE=${1:-./codes.csv}

TEMPDIR=$(mktemp -d)

while read CODE
do
    SIGNATUR=$(echo "$CODE" | cut -f1 -d",")
    NUMMER=$(echo "$CODE" | cut -f2 -d",")

    python3 << EOT
from barcode import ITF
from barcode.writer import SVGWriter

# Set options (font size in pt, others are in mm)
opts = dict(font_size=9, module_height=10.0, module_width=0.2, quiet_zone=1.0)
writer = SVGWriter()

# Render and write to file
with open("$TEMPDIR/$SIGNATUR - $NUMMER.svg", "wb") as f:
    # The leading and trailing 0 may be replaced with other digits. Will be cut of by the reading hall scanners.
    f.write(ITF(str("0${NUMMER}0"), writer=writer).render(opts, text='$SIGNATUR - $NUMMER'))
    f.close()
EOT

    convert -background none -density 600 "$TEMPDIR/$SIGNATUR - $NUMMER.svg" "$TEMPDIR/$SIGNATUR - $NUMMER.png"
done < "$CODES_FILE"

TARGETDIR=$(pwd)
cd "$TEMPDIR";
zip "$TARGETDIR/codes.zip" *.png
cd -
rm -rf "$TEMPDIR"