#!/bin/bash

# Slackware build script for md2roff

# Written by B. Watson (urchlay@slackware.uk)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20230911 bkw: update for v1.11.
# - new homepage, thanks to Tonus for finding it.
# - upstream finally did a tagged release, yay!

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=md2roff
VERSION=${VERSION:-1.11}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM

# 20230911 bkw: we get 2 different filenames depending on whether the
# Content-disposition header is respected by whatever downloads the file.
# Handle either, without scary-looking error messages. Unlike github,
# codeberg doesn't have a "magic" URL that works either way.
TARBALL=$CWD/$PRGNAM-$VERSION.tar.gz
[ -e "$TARBALL" ] || TARBALL=$CWD/$VERSION.tar.gz
tar xvf $TARBALL

cd $PRGNAM
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} + -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} +

# Make the man page give the right directory for the PDF example:
patch -p1 < $CWD/manpage.diff
sed -i "s,@VERSION@,$VERSION," $PRGNAM.md

# Slackware 15.0's groff is slightly broken (and -current's too, I'm
# told), the -Tpdf option looks in the wrong dir for fonts (sent a bug
# report about this to PV). There's another way to convert a man page
# to a PDF that works fine, though:
sed -i 's,-groff.*,roff2pdf -K utf8 md2roff.1 > md2roff.1.pdf,' Makefile

# ...above I said "works fine", this is almost true: roff2pdf will
# fail if DISPLAY isn't set in the environment... although it can be
# set to literally anything (roff2pdf never tries to connect to X at
# all, it just insists the variable has to be set). So:
export DISPLAY=${DISPLAY:-no_such_display}

make install \
  CFLAGS="$SLKCFLAGS" \
  prefix=/usr \
  man1dir=/usr/man/man1 \
  DESTDIR=$PKG

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a LICENSE* *.md *.pdf examples $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

# 20230911 bkw: the man and PDF docs claim that the generated man page
# for md2roff.1 will be found in the documentation dir, so we'd better
# include it there...
ln -s ../../man/man1/$PRGNAM.1.gz $PKGDOC/$PRGNAM.1.gz

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE