#!/bin/sh

# Slackware build script for darcs

# Written by Mikko Värri (vmj@linuxbox.fi)
# Public domain.

PRGNAM=darcs
VERSION=${VERSION:-2.5.2}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

GHC_VERSION=$(ghc --numeric-version)

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
    *) ARCH=$( uname -m ) ;;
  esac
fi

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

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Link darcs binary dynamically
patch -p0 <$CWD/darcs_cabal_dynamic.patch
# Bump regex-{posix,compat} version bounds (all tests pass)
patch -p0 <$CWD/darcs_cabal_regex.patch

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
runghc Setup.lhs configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --libsubdir=ghc-${GHC_VERSION}/$PRGNAM-$VERSION \
  --enable-shared \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --flags="dynamic -curl http mmap terminfo"

runghc Setup.lhs build
runghc Setup.lhs haddock
runghc Setup.lhs copy --destdir=$PKG
runghc Setup.lhs register --gen-pkg-config

PKGCONFD=/usr/lib${LIBDIRSUFFIX}/ghc-${GHC_VERSION}/package.conf.d
PKGID=$( grep -E "^id: " $PRGNAM-$VERSION.conf | cut -d" " -f2 )
mkdir -p $PKG/$PKGCONFD
mv $PRGNAM-$VERSION.conf $PKG/$PKGCONFD/$PKGID.conf

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# manual is missplaced, and Cabal does not support --mandir
mv $PKG/usr/share/man $PKG/usr/man
rmdir $PKG/usr/share

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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a COPYING NEWS README $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

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