#!/bin/sh

# Slackware build script for man-db

# Written by B. Watson (yalhcru@gmail.com)

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

# 20170125 bkw:
# - update for 2.7.6.
# - add --disable-cache-owner. TODO: revisit this at some
#   point. Maybe create a dedicated 'man' user, or use one of the existing
#   users like 'bin' or 'operator'.

# 20160726 bkw:
# - update for 2.7.5.

# 20150507 bkw:
# - update for 2.7.1.
# - fix homepage in .info file.
# - had to update libpipeline to 1.4.0.

# 20140924 bkw:
# - update for 2.7.0.1, which fixes the clash between man-db's zsoelim
#   and groff's zsoelim.
# - update README and README.Slackware slightly.

PRGNAM=man-db
VERSION=${VERSION:-2.7.6}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

# By default, install binaries to /opt, so as not to stomp on Slackware's
# man pkg. We will have to include a /etc/profile.d script to set PATH,
# MANPATH, etc. Note that only binaries and the man pages for man-db itself
# go to /opt. Everything else (libpipeline, man-db's shared libs, localized
# messages, etc) goes to /usr as usual.

# If you want a proper replacement for Slack's man pkg, build with
# USR="yes", which puts the binaries in the usual places. If your name is
# Patrick V. and you're finally replacing man with man-db in Slackware,
# feel free to uncomment the next line:
#USR="yes"

BINDIR=/opt/$PRGNAM/bin
[ "${USR:-no}" = "yes" ] && BINDIR=/usr/bin
MANDIR="${BINDIR/bin/man}"

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

# libpipeline is a pretty niche-market library. It used to be bundled
# in the man-db source, and as far as I can tell, nothing else uses it.
# Instead of making it a separate build and external dep, we'll just
# bundle it here.
LIBNAM=libpipeline
LIBVER=1.4.1

cd $TMP
rm -rf $LIBNAM-$LIBVER
tar xvf $CWD/$LIBNAM-$LIBVER.tar.gz
cd $LIBNAM-$LIBVER
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION/$LIBNAM-$LIBVER \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/$LIBNAM-$LIBVER
cp -a COPYING ChangeLog* NEWS README TODO \
  $PKG/usr/doc/$PRGNAM-$VERSION/$LIBNAM-$LIBVER

# now build man-db itself, using the libpipeline installed in $PKG
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.xz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# The circumlocutions below are needed because doing it the sane way:
# libpipeline_LIBS="-L$PKG/usr/lib$LIBDIRSUFFIX -lpipeline"
# gets broken by libtool (it *insists* on replacing -lpipeline with
# /usr/lib64/libpipeline.so, which will fail if it's an older version).
LD_LIBRARY_PATH="$PKG/usr/lib$LIBDIRSUFFIX" \
LDFLAGS="$PKG/usr/lib$LIBDIRSUFFIX/libpipeline.so" \
libpipeline_CFLAGS="-I$PKG/usr/include" \
libpipeline_LIBS="-L$PKG/usr/lib$LIBDIRSUFFIX $PKG/usr/lib$LIBDIRSUFFIX/libpipeline.so" \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --disable-setuid \
  --disable-cache-owner \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=$MANDIR \
  --bindir=$BINDIR \
  --sbindir=${BINDIR/bin/sbin} \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

# There will always be man pages here, regardless of USR=yes or no.
find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

if [ "${USR:-no}" != "yes" ]; then
  # separate dir full of man pages and symlinks in /opt
  find $PKG/$MANDIR -type f -exec gzip -9 {} \;
  for i in $( find $PKG/$MANDIR -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

  # only need the profile.d stuff if installing to /opt
  mkdir -p $PKG/etc/profile.d
  install -m0755 -oroot -groot $CWD/$PRGNAM.sh $CWD/$PRGNAM.csh $PKG/etc/profile.d
fi

# no special ownership or perms needed here since we --disable-setuid
mkdir -p $PKG/var/cache/man

# only ship a daily cronjob, don't need a weekly one like Debian has.
mkdir -p $PKG/etc/cron.daily
install -m0755 -oroot -groot $CWD/$PRGNAM.cron $PKG/etc/cron.daily/$PRGNAM

# modified default config, customized for Slackware. See the conf file for
# list of changes.
zcat $CWD/man_db.conf.new.gz \
  | sed "s,@LIBDIRSUFFIX@,$LIBDIRSUFFIX,g" \
  > $PKG/etc/man_db.conf.new
rm -rf $PKG/etc/man_db.conf

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a ABOUT-NLS Change* FAQ NEWS README docs/* $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
sed "s,@BINDIR@,$BINDIR," < $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

# N.B. the -p option is actually needed here (for libpipeline.so).
cd $PKG
/sbin/makepkg -p -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}