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#!/bin/sh -e
#
# Copyright (C) 2008  Grigory Batalov <bga@altlinux.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# rehash condition
found=

# get texmf directory list
kpsewhich=/usr/bin/kpsewhich
[ -x "$kpsewhich" ] && dirs=`"$kpsewhich" --show-path=ls-R`

[ -n "$dirs" ] || exit 0

# get a list of files
while read -r f; do
	if [ -n "$found" ]; then
		break
	fi
	# directories are separated with the colon
	OLDIFS="$IFS"
	IFS=:
	for i in $dirs; do
		# check if the file starts with a known directory
		if [ "${f#$i/}" != "$f" ]; then
			found=1
			break
		fi
	done
	IFS="$OLDIFS"
done

# rehash all directories
# TODO: it is possible to specify necessary directories
#	as arguments to texhash
texhash=/usr/bin/texhash
if [ -n "$found" ] && [ -x "$texhash" ]; then
	"$texhash"
fi