#!/bin/bash
# packager           : Frederic Boulet <bipbip> bipbiponlinux~AT~gmail.com
# homepage           : http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufrequtils.html
# source location    : http://www.kernel.org/pub/linux/utils/kernel/cpufreq/
# last revised       : 14.12.2009
# dep                : 

softname='cpufrequtils'
softversion='006'
packageversion='1fb'

arch='i486'
cpu='i686'

prefix=/usr

# log ;)
(

# parameters needed for the build process
buildir=$(pwd)
src="$buildir/$softname-$softversion"
srcpkg="$buildir/$softname-$softversion.tar.gz"
package="$softname-$softversion-$arch-$packageversion"
dest="$buildir/$package"
source=http://www.kernel.org/pub/linux/utils/kernel/cpufreq/$softname-$softversion.tar.gz

# prepare the build result directory
rm -rf $dest
mkdir -p $dest
mkdir -p $dest/install
mkdir -p $dest/$prefix/bin
mkdir -p $dest/usr/doc
mkdir -p $dest/usr/src/$softname-$softversion

# Slack-desc
cat <<EOF > $dest/install/slack-desc 
            |-----handy-ruler------------------------------------------------------|
cpufrequtils: libcpufreq (cpu frequency utilities)
cpufrequtils: 
cpufrequtils: "libcpufreq" is a library which offers a unified access method
cpufrequtils: for userspace tools and programs to the cpufreq core and drivers
cpufrequtils: in the Linux kernel. This allows for code reduction in userspace 
cpufrequtils: tools, a clean implementation of the interaction to the cpufreq 
cpufrequtils: core, and support for both the sysfs and proc interfaces.
cpufrequtils: 
cpufrequtils: 
cpufrequtils: 
cpufrequtils: 
EOF

# check if source is present
if [ -f $softname-$softversion.tar.gz ]; then
	echo "Source file already here, no need to download";
else
 	echo "Downloading source"
	wget -c --no-check-certificate $source
fi

# extract the source code
cd $buildir
tar xzvf $srcpkg
cd $src	

# build
export CFLAGS="-O2 -march=$arch -mtune=$cpu"
export CXXFLAGS="-O2 -march=$arch -mtune=$cpu"
  
make
make install DESTDIR=$dest

# add 'default' files
	cd $src
    mkdir -p $dest/usr/doc/$softname-$softversion
    cp -a \
      AUTHORS COPYING README \
      $dest/usr/doc/$softname-$softversion
	
#  strip
( cd $dest
  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
)

# compress man pages
( cd $dest/$prefix/man
  find . -name "*.?" | xargs gzip -9
)

# SalixBuild
cd $buildir
cp build-$softname.sh $dest/$prefix/src/$softname-$softversion

# set target permissions
chown -R root.root $dest

cd $dest
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;

# real packaging work
cd $dest
makepkg -l y -c n $dest.txz

# computes the md5sum signature for the package
cd $buildir
md5sum $package.txz > $package.md5

# .dep
cd $buildir
echo -e "" > $package.dep

# .src
echo http://people.salixos.org/fredb/ap/cpufrequtils/build-cpufrequtils.sh > $package.src
echo $source >> $package.src

# erase
rm -rf $src
rm -rf $dest

# log ;)
) 2>&1 | tee "$softname-$softversion-build.log"