#!/bin/bash

# genpower.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter <stuart@armedslack.org>
# Please see changelog.txt for revisions to this package's build script history.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
export CWD=$SLACKSOURCE/$PKGSERIES/$PACKAGE
export PORTCWD=$PWD

# Temporary build locations:
export TMPBUILD=$TMP/build-$PACKAGE
export PKG=$TMP/package-$PACKAGE
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Determine the CFLAGS for the known architectures:
case $PORTARCH in
   arm)     export SLKCFLAGS="-O2 -march=armv3 -mtune=xscale" ;;
   powerpc) export SLKCFLAGS="-O2" ;;
   sparc)   export SLKCFLAGS="-O2" ;;
   hppa)    export SLKCFLAGS="-O2" ;;
   *)       export SLKCFLAGS="-O2" ;;
esac

# Extract source:
tar zxvvf $CWD/$PACKAGE-$VERSION.tar.gz
cd $PACKAGE-$VERSION
slackhousekeeping
find . -type d -name CVS -exec rm -rf {} \;

# Apply patches:
zcat $CWD/genpower.var.diff.gz | patch -p1 -E --verbose || failpatch

# Build:
make || failmake

# Install into package:
mkdir -pm755 $PKG/{sbin,etc}
install -m755 genpowerfail gentest genpowerd $PKG/sbin/
install -m644 genpowerd.conf $PKG/etc/genpowerd.conf.new
mkdir -p $PKG/usr/man/man8
install -m644 gentest.8 genpowerd.8 $PKG/usr/man/man8/

# Copy docs:
mkdir -p $PKG/usr/doc/$PACKAGE-$VERSION
cp -favv COPYING Change.Log README TODO genpower.docs cables \
         $PKG/usr/doc/$PACKAGE-$VERSION

# Create the install script:
mkdir -p $PKG/install
cat << EOF > $PKG/install/doinst.sh
#!/bin/sh
config() {
  NEW="\$1"
  OLD="\$(dirname \$NEW)/\$(basename \$NEW .new)"
  # If there's no config file by that name, mv it over:
  if [ ! -r \$OLD ]; then
    mv \$NEW \$OLD
  elif [ "\$(cat \$OLD | md5sum)" = "\$(cat \$NEW | md5sum)" ]; then # toss the redundant copy
    rm \$NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}
config etc/genpowerd.conf.new
EOF
install -m644 $CWD/slack-desc $PKG/install/

# If necessary, start the fakeroot server so we can set file/dir ownerships:
start_fakeroot

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs

# Build the package:
if [ $PORTARCH = arm ]; then
   slackmp # run makepkg
  else
   makepkg -l y -c n $PKGSTORE/$PKGSERIES/$PACKAGE-$VERSION-$ARCH-$BUILD.tgz
fi

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links