#!/bin/bash
#
# powertop.SlackBuild
# code: Vicious (michal@scxd.info); improvements: Zielony (e-pl@o2.pl)
set -e
# PACKAGE GENERAL INFO [EDIT]
PKGNAME=powertop
VERSION=1.9
BUILD=1X
ARCH=i686
URL=http://www.lesswatts.org/projects/powertop/download/powertop-$VERSION.tar.gz

CWD=`pwd`
TMP=/tmp/$PKGNAME

if [ -e $TMP/$PKGNAME-$VERSION/'Makefile' ]; then
	cd $TMP/$PKGNAME-$VERSION
	make
else
if [ ! -d $TMP/$PKGNAME-$VERSION ]; then
rm -rf $TMP/package
mkdir -p $TMP/package/install

# PACKAGE DESCRIPTION  [EDIT]
cat << SLACKDESC | fmt -w $(( 80 - `echo $PKGNAME | wc -c` - 3 )) | perl -pe "s/^/$PKGNAME: /" > $TMP/package/install/slack-desc
PowerTOP (saving power on Intel systems with Linux)

Computer programs can make your computer use more power. PowerTOP is a Linux tool that helps you find those programs that are misbehaving while your computer is idle. The application that misbehaved the most was the Linux kernel. However, as of version 2.6.21, the Linux kernel went tickless, and no longer has a fixed 1000Hz timer tick. The result (in theory) is huge power savings because the CPU stays in low power mode for longer periods during system idle. 

               Package prepared by Heniek (heniekk@gmail.com)
SLACKDESC

cd $TMP

# step 1: DOWNLOAD SOURCE
PKGFNAME=`ls -t | grep -i $PKGNAME*.t*z* | head -1`
if [ -z $PKGFNAME ]; then
	( wget -c $URL -P $TMP -O $PKGNAME-$VERSION.${URL//*.} )

# step 2: UNPACK SOURCE AND COMPILE
	PKGFNAME=`ls -t | grep -i $PKGNAME*.t*z* | head -1`
fi
EXTENSION=`echo ${PKGFNAME//*.}`
if [ $EXTENSION = "bz2" ]; then
	tar jxvf $PKGFNAME -C $TMP
else
	tar xvfz $PKGFNAME -C $TMP
fi

DIRNAME=`tar tf $PKGFNAME | head -1`
echo $DIRNAME | grep '/' && DIRNAME=${DIRNAME%${DIRNAME#*/}}
if [ $DIRNAME != $PKGNAME-$VERSION/ ]; then mv $DIRNAME $PKGNAME-$VERSION; fi

chown root:root $TMP -R
fi

cd $TMP/$PKGNAME-$VERSION

if [ "$ARCH" = "i686" ]; then
	SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "i486" ]; then
	SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i386" ]; then
	SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "s390" ]; then
	SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
	SLKCFLAGS="-O2"
fi

if [ -s 'configure' ]; then
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" ./configure \
	--prefix=/usr \
	--disable-debug \
	--mandir=/usr/man \
	--sysconfdir=/etc \
	--program-prefix="" \
	--program-suffix="" \
	$ARCH-slackware-linux
fi
sed -i -e "s|/usr|$TMP/package/usr|g" Makefile
make
fi
make install

mkdir -p $TMP/package/usr/doc/$PKGNAME-$VERSION
cp -af COPYING README $TMP/package/usr/doc/$PKGNAME-$VERSION

# step 3: STRIP BINARIES & GZIP MANUALS
( cd $TMP/package
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)
( gzip $TMP/package/usr/man/man?/* )

# step 4: CREATE PACKAGE & CLEAN TMP
cd $TMP/package
if [ `ls | wc -m` -le 8 ]; then
	echo "Brak plików pakietu!"
else
	( requiredbuilder -y -s $TMP/package/install $TMP/$PKGNAME-$VERSION )
	makepkg -l y -c n $CWD/$PKGNAME-$VERSION-$ARCH-$BUILD.tgz
	rm -rf $TMP
fi