#!/bin/sh

# Slackware build script for bacon 

# Written by Steve Pledger <spledger91@yahoo.com>

# 2010-12-21 UPDATE:
#   -Niels Horn suggested I display a warning if the internal
#   version doesn't match the VERSION variable
#   -According to the BaCon documentation, I'm supposed to use the '-o'
#   switch for each compiler option.
#   e.g. "-o -O2 -o -march=i486 -o -mtune=i686" instead of "-o -O2 -march=i486 -mtune=i686"

PRGNAM="bacon"
VERSION="${VERSION:-1.0_build_19}"
BUILD=${BUILD:-2}
TAG=${TAG:-_SBo}

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}

# Version number may change, so figure out the real version
SRCVER="$(bash $CWD/bacon.bash -v | grep version | cut -d' ' -f3-5 | tr ' ' _)"

if [ "$VERSION" != "$SRCVER" ]; then
  cat <<EOF
WARNING: The source version ($SRCVER) does not match the VERSION variable ($VERSION).
To build anyway, re-run the SlackBuild like this:

  VERSION=$SRCVER ./$PRGNAM.SlackBuild

exiting...
EOF

  exit 1
fi

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
mkdir $PRGNAM-$VERSION

cd $PRGNAM-$VERSION
# Bacon creates a binary in the same location as the source, so copy the source file here.
cat $CWD/bacon.bac > bacon.bac

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 {} \;

# Use the Bash version of BaCon to convert and compile the BASIC version, which is much faster.
# (Note: Not using sh because this requires Bash 4.x and sh may be a symlink to another shell)
bash $CWD/bacon.bash -p -o $(echo $SLKCFLAGS | sed -e 's: : -o :g') bacon.bac

mkdir -p $PKG/usr/bin
install -m 0755 bacon $PKG/usr/bin

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

mkdir -p $PKG/usr/doc/$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:-tgz}