#!/bin/bash

# Slackware build script for reflex

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

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

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

PRGNAM=reflex
VERSION=${VERSION:-2.5.4.20210808}
BUILD=${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 [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

# The "2.5.4" part of VERSION isn't part of the filename nor the extracted
# directory. I kept it as part of the version number for consistency
# with reflex's own documentation, but it means I gotta construct the
# tarball filename:
TARVER="$( echo $VERSION | rev | cut -d. -f1 | rev )"

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$TARVER
tar xvf $CWD/$PRGNAM-$TARVER.tgz
cd $PRGNAM-$TARVER
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 {} \+

# Check VERSION in tarball, to make sure the version hasn't
# updated. Nobody but me should ever see this error message (in the
# grand tradition of error messages that say "This never happens").
MAJMIN="$( echo $VERSION | rev | cut -d. -f2- | rev )"
REALVER="$( cut -f2 VERSION )"

if [ "$REALVER" != "$MAJMIN" ]; then
  cat 1>&2 <<EOF

*** VERSION=$VERSION, the $MAJMIN part is wrong, doesn't match
*** VERSION $REALVER in the VERSION file.
*** Fix the build! If you are not the maintainer, please copy/paste
*** this message and mail it to the maintainer.

EOF
  exit 1
fi

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

make
make install DESTDIR=$PKG

strip $PKG/usr/bin/$PRGNAM
gzip -9 $PKG/usr/man/man1/$PRGNAM.1

# Considered adding MISC/* to the doc dir, but it's almost all cruft
# from 20+ years ago, from before reflex forked from flex, and it looks
# like it's only of interest to archaeologists.
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a COPYING NEWS README VERSION $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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