#!/bin/sh -e

# to test POSIX-correctness, change hash-bang to /bin/bash and uncomment
# the following line:

# set -o posix

# Very simple configuration script for t1lib.  Checks system font
# directory and adds anything ending in .pfa or pfb to the font
# database.  A few things borrowed from paperconfig, (C) 1996, Yves
# Arrouye <arrouye@debian.org>

# Based on script written by David Huggins-Daines <dhd@debian.org>

usage() {
	cat <<EOF

Usage: `basename $0` [ -v, --version ] [ -h, --help ] [ --force ]
                   [ fontdirs... ]

Options: -v, --version          print version information and exit
         -h, --help             print this help and exit
         --force                force configuration
EOF
	exit 0
}

version=0.3
confdir=/etc/t1lib
conffile=$confdir/t1lib.config
dbase=$confdir/FontDatabase
temp=$confdir/FontDatabase.tmp
force=0
fontdirs="/usr/share/fonts/Type1"

while [ $# -ne 0 ]
do
	case "$1" in
		-v|--version)
			echo "`basename $0` version $version"
			exit 0
			;;
		-h|--help)
			usage
			;;
		--force)
			force=1
			;;
		*)
			pat=${1%/}
			if ! grep -q -x $pat <<EOF 2>/dev/null
$fontdirs
EOF
			then
				fontdirs="$fontdirs $1"
			fi
			;;
	esac
	shift
done

# We presume that if the database exists, then so does the
# configuration file.  Hopefully this won't break anything.

if [ $force -ne 1 ] && [ -e $dbase ]; then
	echo "Configuration and font database files already exist."
	echo "Run $0 --force to rebuild them."
	exit 0
fi

fontpath=""
afmpath=""
mkdir -p $confdir || true
echo -n "Searching for Type 1 fonts and AFM files..."

for i in $fontdirs
do
	if [ ! -d $i ] || [ "`echo $i/*.pf[ab]`" = "$i/*.pf[ab]" ]; then
		continue
	fi
	fontpath="$fontpath$i:"

	for j in `find $i -mindepth 1 -maxdepth 2 -name "*.afm" -type f -printf "%h\n" | sort | uniq`; do
		afmpath="$afmpath$j:"
	done

	# get a listing of all the fonts in each dir
	find $i -maxdepth 1 -name "*.pf[ab]" -type f -printf '%f\n' >> $temp
done
fontpath=${fontpath%:}
afmpath=${afmpath%:}

if [ -z "$fontpath" ]; then
	cat <<EOF


No Type 1 fonts were found in the expected locations.
If you want t1lib to be aware of your fonts, you should run
$0 with the names of your local font directories as
arguments, or you should edit the $dbase file manually.
See the FontDatabase(5) manual page for more information.

EOF
	rm -f $temp
else
	echo " done."
	echo -n "Building font database..."
	fontcount=`cat $temp | wc -l || true`
	echo $fontcount > $dbase
	cat $temp >> $dbase
	rm -f $temp
	echo " done."
fi

# now set the paths in the config file
cat <<EOF >$conffile
t1lib.config - global configuration file for t1lib.
It was created automatically on `date`
by the t1libconfig script.

Run $0 --force to rebuild it.

ENCODING=$confdir/enc
AFM=$afmpath
TYPE1=$fontpath
FONTDATABASE=$dbase
EOF

exit 0