#!/bin/zsh

rpmopts=(--replacefiles)

if [[ $1 == --replacepkgs ]] {
	rpmopts+=($1)
	shift
}

arch=i586
flavor=default
update==false
mydir=$(pwd)
if [[ $0 == *update* || $0 == *112* ]] {
	url=http://download.opensuse.org/distribution/11.2/repo/oss/suse/$arch/
	url=http://download.opensuse.org/update/11.2/rpm/$arch/
	sarch=noarch
	rpmopts+=(--nodeps)
	update==true
} \
else {
	url=http://download.opensuse.org/repositories/Kernel://HEAD/openSUSE_11.2/$arch/
	sarch=noarch
	rpmopts+=(--nodeps)
}
if [[ -z $sarch ]] { sarch=$arch }
if [[ -z $surl  ]] { surl=${url%$arch/}$sarch/ }

if [[ -n $GET_KERNEL_PIN_FLAVOR ]] { flavor=$GET_KERNEL_PIN_FLAVOR }
versions=($(wget -nv $url -O-|perl -nE'say if (undef,$_) = m{<a href=("|'"'"'|)kernel-'$flavor'-(\d.*?-.*?)\.i586\.rpm\1(?:\s.*?)?>}'))
if [[ ! $#versions -gt 0 ]] {
	echo Could not get kernel version, aborting...
	exit 1
}

tempdir=$(mktemp -d)
if [[ $tempdir != /* ]] {
	echo No valid tempdir found, got $tempdir, aborting...
	exit 2
}
trap '
	trap - INT
	cd $tempdir
	rm *(L0)
	cd
	rmdir $tempdir 
	return $((128+$1))
' INT
cd $tempdir
touch $versions
ver=$(ls -rv|head -1)
if [[ -n $GET_KERNEL_PIN_VER ]] { ver=$GET_KERNEL_PIN_VER }
rm *(L0)
cd
rmdir $tempdir
trap - INT

echo
echo \*\*\* CURRENT VERSION: $ver \*\*\*
echo


dlc=(wget -c)
dlc=(aria2c -Z)
sver=${ver%.*}
dest=$HOME/Downloads/kernel/$sver
mkdir -p $dest/$flavor
cd $dest

( mv */* . )
( setopt nullglob; cleanml=(*.metalink *.metalink.<->)
if [[ $#cleanml -gt 0 ]] {
	rm $cleanml
}; )
$dlc \
	${url}kernel-syms-${ver}.${arch}.rpm \
	${url}kernel-${flavor}-${ver}.${arch}.rpm \
	${url}kernel-${flavor}-base-${ver}.${arch}.rpm \
	${url}kernel-${flavor}-extra-${ver}.${arch}.rpm \
	${url}kernel-${flavor}-devel-${ver}.${arch}.rpm \
	${surl}kernel-source-${ver}.${sarch}.rpm
for flavor_d (*(/)) { ( mv *-${flavor_d}-* $flavor_d ) }

echo TODO: sudo rpm -ivh $rpmopts *.rpm $flavor/*.rpm
echo
echo -n Install\? \[yn\]

if { read -q } {
	sudo rpm -ivh $rpmopts *.rpm $flavor/*.rpm
	if { $update } {
		echo You should reinstall the newer kernel now...
		cd $mydir
		sleep 1
		echo try: $(echo ${0/update}|tr -s _-) --replacepkgs
	}
} \
else {
	echo To install later...
	echo
	echo cd \~${dest#$HOME}
	echo sudo rpm -ivh $rpmopts \*.rpm $flavor/\*.rpm
	echo
	if { $update } {
		echo You should also reinstall the newer kernel with
		echo   $(echo ${0/update}|tr -s _-) --replacepkgs
	}
}

cd $mydir