#!/bin/sh
#
# Copyright (C) 2022-2023 Free Software Foundation, Inc.
#
# This file is part of groff.
#
# groff 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 3 of the License, or
# (at your option) any later version.
#
# groff is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#

devpdf_fontbuilddir="${abs_top_builddir:-.}"/font/devpdf
ghostscript=@GHOSTSCRIPT@

wail () {
    echo ...FAILED >&2
    fail=yes
}

fail=

# The are the base 14 fonts required by the PDF standard.  They should
# _always_ be present and supported.  If their corresponding Type 1 font
# files are available, they too can be embedded in a PDF using gropdf's
# "-e" option.  groff's "EURO" font is always available; we ship it.
mandatory_fonts='CB
CBI
CI
CR
HB
HBI
HI
HR
S
TB
TBI
TI
TR
ZD'

# These fonts are commonly, but not universally, available; if used,
# their corresponding Type 1 font files must be embedded in a document.
#
# Their groff font descriptions will always be available: we ship them.
# But they are not usable with gropdf(1) if the Type 1 files are absent.
# We thus will not test them if they are not expected to work.
supplementary_fonts='AB
ABI
AI
AR
BMB
BMBI
BMI
BMR
HNB
HNBI
HNI
HNR
NB
NBI
NI
NR
PB
PBI
PI
PR
ZCMI'

for f in $mandatory_fonts
do
    printf "checking for font description %s...\n" "$f" >&2
    test -f "$devpdf_fontbuilddir"/"$f" || wail
done

if [ "$ghostscript" = no ] || [ "$ghostscript" = missing ]
then
    echo "Ghostscript not available; skipping check for any further" \
         "fonts in the default foundry" >&2
    exit 77 # skip
fi

for f in $supplementary_fonts
do
    printf "checking for font description %s...\n" "$f" >&2
    test -f "$devpdf_fontbuilddir"/"$f" || wail
done

test -z "$fail"

# vim:set ai et sw=4 ts=4 tw=72: