#!/bin/sh
set -e

# mktexlsr and mktexlsr.pl generate different output
# Whichever of both scripts is run last, determines the output of /var/lib/texmf/ls-R
# See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1003449

# Don't run if texlive-base is not installed
if [ ! -e /usr/share/texlive/texmf-dist/scripts/texlive/mktexlsr ];
then
  exit 0
fi

# Don't run if the version of mktexlsr is sufficiently new
if grep -q "Also remove double empty" /usr/share/texlive/texmf-dist/scripts/texlive/mktexlsr;
then
  exit 0
fi

# Apply only the functional part of the patch in #1003449 (removes double empty lines)
sed -i -e "/vc_dirs'\./s/[\\]/| cat -s \\\\/" /usr/share/texlive/texmf-dist/scripts/texlive/mktexlsr

# Run the shell script, this hook is the last invoker.
# The output in /var/lib/texmf/ls-R will be sorted
mktexlsr

echo "P: $(basename $0) Reproducible hook has been applied"