# Maintainer: wain <wain.at.gmx.net>
pkgname=kernel26fr-emission-WAIN
pkgver=2.6.18
pkgrel=2
pkgdesc="The Linux Kernel with patch-2.6.18-emission${emissionver}.patch"
arch=(i686 x86_64)
url="http://www.evolution-mission.org/viewforum.php?f=8"
#lastknownpatch for building kernel offline
emissionver=1
lastknownpatch="linux-2.6.18-emission${emissionver}"
depends=('module-init-tools')
provides=('kernel26')
source=(http://archiwain.free.fr/kernelemission/logo_linux_clut224.ppm \
	http://archiwain.free.fr/kernelemission/logo_linux_vga16.ppm \
	http://archiwain.free.fr/kernelemission/logo_linux_mono.ppm \
	http://archiwain.free.fr/kernelemission/config \
	)
install=kernel26fr.install
md5sums=('5a62bcc7e96601052c7405459b483826' 'a995ec849ea43d3c89d607bbdd1e7d09'\
         'ed6b42fea2f5d27f7eb920746ccc1ebb' '7ebd95f730ecd7e78cfa9ef243ddcc67')

###
prompt() {
	if [ "$USE_COLOR" = "Y" -o "$USE_COLOR" = "y" ]; then
		echo -e "\n\033[1;33m==> \033[1;0m \033[1;1m$1\033[1;0m" >&2
		echo -e "\033[1;33m==> \033[1;0m \033[1;1m"----------------------------------------------"\033[1;0m" >&2
		echo -ne "\033[1;33m==> \033[1;0m" >&2
	else
		echo -ne "\n==> $1" >&2
   		echo "==> ----------------------------------------------"
   		echo -n "==> "
	fi
}

build() {
# Patch version to use ?
#--------------------------------
patch_emission=$lastknownpatch
urlpatchemission="http://distfiles.evolution-mission.org/sources/${pkgver}/emission${emissionver}/${patch_emission}.bz2"
echo $urlpatchemission
echo
msg "Patchs utilisés:"
plain $lastknownpatch
echo
sleep 1
# Extract the kernel ?
#------------------------------
cd $startdir/src/
# Are the kernelsources and patch sources here ? 
if [ -d linux-$pkgver ] 
then 
	extractkernel="n" 
else 
	extractkernel="o"
fi 
# Extract the sources if not necessary ? 
if [ "$extractkernel" = "n" ] 
then
   	prompt "Le kernel a déjà été extrait, voulez-vous le ré-extraire ?: o/n [n]"
	read -n 1 choiceextractkernel
        if [ "$choiceextractkernel" = "o" ] 
	then
		extractkernel="o"
		rm -Rf linux-$pkgver # on supprime le répertoire linux  
	fi	
fi

#Extract the sources
#------------------------------
if [ "$extractkernel" = "o" ] 
then
	# Get files
	#------------------------------
	cd $startdir
	rm -Rf $startdir/src/linux-$pkgver # on supprime le répertoire linux  
	msg "Téléchargement, et extraction des sources"
	sleep 2
	wget -c "ftp://ftp.fr.kernel.org/pub/linux/kernel/v2.6/linux-${pkgver}.tar.bz2" || return 1
	wget -c "${urlpatchemission}" || return 1

	# Extract the sources
	#------------------------------
       	plain "extracting ..."
	bzcat linux-$pkgver.tar.bz2 | tar xvf -
	mv linux-$pkgver $startdir/src/

	# Patch the kernel
	#------------------------------
	cd $startdir/src/linux-$pkgver
    	# big patchset
	bzcat $startdir/$patch_emission.bz2 | patch -p1 || return 1
 	# Remove the extraversion from Makefile
  	sed -i "s|^EXTRAVERSION.*$|EXTRAVERSION = -emission|g" ./Makefile
fi 

# Select the config file
#------------------------------
cd $startdir
echo
warning "Si vous voulez utiliser votre config perso renommez le fichier en 'conf*'"
plain "----------------------------------------------------------------------"
plain "    Tapez le numéro du fichier de configuration à utiliser"
plain "----------------------------------------------------------------------"
n=0
config=`ls -t *conf* | head -n 1`
for i in `ls -t  *conf*` 
do
       plain "$n:  $i" 
       n=$(( $n + 1 ))
done
prompt "(Tapez 0 pour utiliser le fichier le plus récent: ($config)"
read result
config=`ls -t *conf* | head -n $(( $result + 1 )) | tail -n 1`
cp $config $startdir/src/config
msg "utilisation du fichier ${config} ! "

# LOCAL_VERSION ??
#-------------------------------------------------------------
old_local_version=$(grep -v "^#" $startdir/src/config | grep "CONFIG_LOCALVERSION=" | sed s/"CONFIG_LOCALVERSION="/""/ | tr -d \")
[ -z "$old_local_version" ] && old_local_version="-PERSO"
prompt "Entrez un nom précédé d'un tiret pour personnaliser votre kernel.\nIl aura la forme \"${pkgver}-emission${old_local_version}\": [${old_local_version}]"
read new_local_version
[ -z "$new_local_version" ] && new_local_version=$old_local_version
sed -i "s|CONFIG_LOCALVERSION=.*$|CONFIG_LOCALVERSION=\"$new_local_version\"|" $startdir/src/config 
msg "Le kernel s'appelera: ${pkgver}-emission${new_local_version}"

# initramfs ?
#-------------------------------------------------------------
prompt "Voulez-vous générer une image initramfs ? o/n [n]"
read -n 1 initramfs

# arch logo ??
#-------------------------------------------------------------
cd $startdir/src/linux-$pkgver
#-correct config file for framebuffer and maybe splash support
[ ! "`grep "CONFIG_FB_VESA_TNG" ../config`" ] && echo "#CONFIG_FB_VESA_TNG is not set" >> ../config
[ ! "`grep "CONFIG_FB_VESA_STD" ../config`" ] && echo "#CONFIG_FB_VESA_STD is not set" >> ../config
[ ! "`grep "CONFIG_FB_SPLASH" ../config`" ] && echo "#CONFIG_FB_SPLASH is not set" >> ../config
[ ! "`grep "CONFIG_FB_VESA_DEFAULT_MODE" ../config`" ] && echo "#CONFIG_FB_VESA_DEFAULT_MODE is not set" >> ../config
[ ! "`grep "CONFIG_LOGO" ../config`" ] && echo "#CONFIG_LOGO is not set" >> ../config
[ ! "`grep "CONFIG_LOGO_LINUX_CLUT224" ../config`" ] && echo "#CONFIG_LOGO_LINUX_CLUT224  is not set" >> ../config
rm -f drivers/video/logo/logo_linux_mono.ppm  
rm -f drivers/video/logo/logo_linux_vga16.ppm  
rm -f drivers/video/logo/logo_linux_clut224.ppm  
prompt "Voulez-vous afficher le logo Archlinux au démarrage ?\n(ne pas utiliser le logo si vous utilisez gensplash) : o/n [n]"
read -n 1 logo
	if [ "$logo" = "o" ]
	then
  		cp ../logo_linux_mono.ppm drivers/video/logo/
  		cp ../logo_linux_vga16.ppm drivers/video/logo/
  		cp ../logo_linux_clut224.ppm drivers/video/logo/

  		sed -i "s|^.*CONFIG_LOGO is not set|CONFIG_LOGO=y|" ../config
  		sed -i "s|^.*CONFIG_LOGO_LINUX_CLUT224 is not set|CONFIG_LOGO_LINUX_CLUT224=y|" ../config
  		sed -i "s|^.*CONFIG_FB_SPLASH.*$|#CONFIG_FB_SPLASH desactivated by user|" ../config
	else
  		sed -i "s|^.*CONFIG_LOGO.*$|#CONFIG_LOGO desactivated by user|" ../config
	fi

# use gensplash ??
#-------------------------------------------------------------
if [ "$logo" != "o" ]
then
	echo
	warning "Si vous n'avez pas besoin de modifier votre initrd, répondez non."
	prompt "Voulez-vous modifier/ajouter gensplash pour ce kernel ?\n(Nécessite les paquetages initscripts-gensplash et mkinitramfs) : o/n [n]"
	read -n 1 choicesplash
fi
if [ "$choicesplash" = "o" ]
then
	#-theme
	prompt "Entrez le nom du thème gensplash présent \ndans /etc/splash/ sur la machine de destination: [darch]"
	read  splashtheme
	[ -z "$splashtheme" ] && splashtheme="darch"
  	sed -i "s|^.*CONFIG_BLK_DEV_RAM .*$|CONFIG_BLK_DEV_RAM=y|" ../config
  	sed -i "s|^.*CONFIG_BLK_INITRD.*$|CONFIG_BLK_DEV_INITRD=y|" ../config
  	sed -i "s|^.*CONFIG_FB_VIRTUAL.*$|#CONFIG_FB_VIRTUAL desactivated by user|" ../config
	sed -i "s|^.*CONFIG_FB_SPLASH.*$|CONFIG_FB_SPLASH=y|" ../config
	#-resolution
	defautvalue=$(grep "CONFIG_FB_VESA_DEFAULT_MODE=" ../config | cut -d "\"" -f 2)
	[ -z "$defautvalue" ] && defautvalue="800x600@70"
	defautvalue=${defautvalue%@*}
	prompt "Entrez la résolution du thème à utiliser: [${defautvalue}]"
	read splashresolution
	[ -z "$splashresolution" ] && splashresolution=$defautvalue
fi

# Correct config file for framebuffer
#-------------------------------------------------------------
if [ "$logo" = "o" ] || [ "$choicesplash" = "o" ]
then
	sed -i "s|^.*CONFIG_FB .*$|CONFIG_FB=y|" ../config
	sed -i "s|^.*CONFIG_FB_CFB_FILLRECT.*$|CONFIG_FB_CFB_FILLRECT=y|" ../config
	sed -i "s|^.*CONFIG_FB_CFB_COPYAREA.*$|CONFIG_FB_CFB_COPYAREA=y|" ../config
	sed -i "s|^.*CONFIG_FB_CFB_IMAGEBLIT.*$|CONFIG_FB_CFB_IMAGEBLIT=y|" ../config
	sed -i "s|^.*CONFIG_FB_VESA .*$|CONFIG_FB_VESA=y|" ../config
	sed -i "s|^.*CONFIG_VIDEO_SELECT.*$|CONFIG_VIDEO_SELECT=y|" ../config
	sed -i "s|^.*CONFIG_VGA_CONSOLE.*$|CONFIG_VGA_CONSOLE=y|" ../config
	sed -i "s|^.*CONFIG_DUMMY_CONSOLE.*$|CONFIG_DUMMY_CONSOLE=y|" ../config
	sed -i "s|^.*CONFIG_FRAMEBUFFER_CONSOLE .*$|CONFIG_FRAMEBUFFER_CONSOLE=y|" ../config
	sed -i "s|^.*CONFIG_FONTS.*$|CONFIG_FONTS=y|" ../config
	sed -i "s|^.*CONFIG_FONT_8x16.*$|CONFIG_FONT_8x16=y|" ../config
	
	#vesa driver
	echo
	prompt "Par défaut, le kernel utilisera le driver VESA STANDARD (plus stable)\nVESA TNG permet en revanche de changer la fréquence et la profondeur\nd'affichage de la console et permet une résolution plus élevée.\nPréférez-vous utiliser VESA TNG ? o/n[n]"
	read -n 1 videomodechoice
	if [ "$videomodechoice" = "o" ]
	then
		videomode="TNG"
		#-profondeur
		prompt "Choisissez le mode vga (bits@Hz): [32@70]"
		read  vgamode
		[ -z "$vgamode" ] && vgamode="32@70"
  		sed -i "s|^.*CONFIG_FB_VESA_STD.*$|#CONFIG_FB_VESA_STD desactivated|" ../config
  		sed -i "s|^.*CONFIG_FB_VESA_TNG.*$|CONFIG_FB_VESA_TNG=y|" ../config
  		sed -i "s|^.*CONFIG_FB_VESA_DEFAULT_MODE.*$|CONFIG_FB_VESA_DEFAULT_MODE=\"${splashresolution}@${vgamode#*@}\"|" ../config
	else
		videomode="STD"
		echo
		sed -i "s|^.*CONFIG_FB_VESA_TNG.*$|#CONFIG_FB_VESA_TNG desactivated|" ../config
		sed -i "s|^.*CONFIG_FB_VESA_STD.*$|CONFIG_FB_VESA_STD=y|" ../config
		plain "     +---------------------------------------------------+"
		plain "          | 640x480 800x600 1024x768 1280x1024 1600x1200"
		plain "     -----+----------------------------------------------"
		plain "      256 |     769     771      773     775	796"
		plain "      32K |     784     787      790     793	797"
		plain "      64K |     785     788      791     794	798"
		plain "      16M |     786     789      792     795	799"
		plain "     +---------------------------------------------------+"
		prompt "Facultatif: Choisissez un des modes vga ci-dessus: [788]"
		read  vgamode
		[ -z "$vgamode" ] && vgamode="788"
	fi
else
	videomode="off"
fi
#--------------------------------------------------------------
# get rid of the 'i' in i686
cat ../config | sed "s|#CARCH#|$carch|g" >./.config
#--------------------------------------------------------------

# Editor choice ??
#-------------------------------------------------------------
# for gvim, add --nofork
cd $startdir/src/linux-$pkgver
echo
plain "--------------------------------------------------------------------"
plain "    Choix de l'éditeur de configuration"
plain "--------------------------------------------------------------------"
plain "0: ne pas modifier (compiler directement ${config})"
plain "1: xconfig    2: gconfig    3: menuconfig   4: gvim   5: $EDITOR"
prompt "Avec quel éditeur voulez-vous modifier la configuration du kernel ?"
read -n 1 result
echo 
case $result in
 1)
  make xconfig
  ;;
 2)
  make gconfig
  ;;
 3)
  make menuconfig
  ;;
 4)
  (gvim --nofork ./.config)
  ;;
 5)
  ($EDITOR .config)
  ;;
 *)
  yes "" | make config
  ;;
esac
wait
#---------------------------------------------------------

  
  ##### NO USER CHANGES BELOW HERE #####

  # save the current pkgname
  old_pkgname=$pkgname

  # set pkgname for build purposes - DO NOT alter!
  pkgname=kernel26

  # save the updated config to build with today's date
  cp ./.config $startdir/config-${patch_emission}${new_localversion}-$(date +%y-%m-%d\-%Hh)

  # Read the full kernel version info from new config to use in pathnames and pkgname
  . ./.config
  # Kernel release - will be the same as Makefile
  _kernrel="${pkgver}-emission${CONFIG_LOCALVERSION}"
  # Set a new pkgname from  kernel release and pkgver suffix
  pkgname="${pkgname}fr-emission${CONFIG_LOCALVERSION}"

  # build!
  echo
  if ! [ "$extractkernel" = "o" ]
  then
  	prompt "Voulez-vous réutiliser les modules compilés précédemment (plus rapide) ? o/n [o]: "
  	read -n 1 choice
  fi
  echo
  plain "Appuyez sur une touche pour commencer ou CTRL+C pour abandonner"
  plain "        ---------------------------------------------"
  read anykey
  if [ "$choice" = "n" ] ; then
        make -j3 clean bzImage modules || return 1
  else
        make -j3 bzImage modules || return 1
  fi
  if [ "$CARCH" = "x86_64" ]; then
	  build_arch="x86_64" 
  else
	  build_arch="i386"
  fi
  mkdir -p $startdir/pkg/{lib/modules,boot}
  make INSTALL_MOD_PATH=$startdir/pkg modules_install || return 1
  cp System.map $startdir/pkg/boot/System.map26emission${CONFIG_LOCALVERSION}
  cp arch/${build_arch}/boot/bzImage $startdir/pkg/boot/vmlinuz26emission${CONFIG_LOCALVERSION}
  install -D -m644 Makefile $startdir/pkg/usr/src/linux-${_kernrel}/Makefile
  install -D -m644 Makefile $startdir/pkg/usr/src/linux-${_kernrel}/kernel/Makefile
  install -D -m644 .config  $startdir/pkg/usr/src/linux-${_kernrel}/.config
  install -D -m644 .kernelrelease $startdir/pkg/usr/src/linux-${_kernrel}/.kernelrelease
  install -D -m644 .config $startdir/pkg/boot/kconfig-${_kernrel}
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/include
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/arch/${build_arch}/kernel
  for i in acpi asm-generic asm-${build_arch} config linux math-emu media net pcmcia scsi sound video; do
    cp -a include/$i $startdir/pkg/usr/src/linux-${_kernrel}/include/
  done
  # copy files necessary for later builds, like nvidia and vmware
  cp -a scripts $startdir/pkg/usr/src/linux-${_kernrel}
  cp Module.symvers $startdir/pkg/usr/src/linux-${_kernrel}
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/.tmp_versions
  cp arch/${build_arch}/Makefile $startdir/pkg/usr/src/linux-${_kernrel}/arch/${build_arch}/
  cp arch/${build_arch}/Makefile.cpu $startdir/pkg/usr/src/linux-${_kernrel}/arch/${build_arch}/
  cp arch/${build_arch}/kernel/asm-offsets.s $startdir/pkg/usr/src/linux-${_kernrel}/arch/${build_arch}/kernel/
  # add headers for lirc package
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/drivers/media/video
  cp drivers/media/video/*.h  $startdir/pkg/usr/src/linux-${_kernrel}/drivers/media/video/
  for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102 usbvideo zc0301; do
	  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/drivers/media/video/$i
	  cp -a drivers/media/video/$i/*.h $startdir/pkg/usr/src/linux-${_kernrel}/drivers/media/video/$i
  done
  cd $startdir/pkg/usr/src/linux-${_kernrel}/drivers/media/video
  ln -s bt8xx/bttv.h bttv.h
  ln -s bt8xx/bttvp.h bttvp.h
  ln -s bt8xx/bt848.h bt848.h
  cd -
  # add inotify.h
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/include/linux
  cp include/linux/inotify.h $startdir/pkg/usr/src/linux-${_kernrel}/include/linux/
  # add CLUSTERIP file for iptables
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/net/ipv4/netfilter/
  cp net/ipv4/netfilter/ipt_CLUSTERIP.c $startdir/pkg/usr/src/linux-${_kernrel}/net/ipv4/netfilter/
  # add dm headers
  mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/drivers/md
  cp drivers/md/*.h  $startdir/pkg/usr/src/linux-${_kernrel}/drivers/md
  # copy in Kconfig files
  for i in `find . -name "Kconfig*"`; do
    mkdir -p $startdir/pkg/usr/src/linux-${_kernrel}/`echo $i | sed 's|/Kconfig.*||'`
    cp $i $startdir/pkg/usr/src/linux-${_kernrel}/$i
  done
  cd $startdir/pkg/usr/src/linux-${_kernrel}/include && ln -s asm-${build_arch} asm
  chown -R root.root $startdir/pkg/usr/src/linux-${_kernrel}
  cd $startdir/pkg/lib/modules/${_kernrel} 
  rm -f source build
  ln -sf /usr/src/linux-${_kernrel} build
  # Fix nvidia build issue.
  cp $startdir/src/linux-$pkgver/arch/${build_arch}/Makefile.cpu $startdir/pkg/usr/src/linux-${_kernrel}/arch/${build_arch}/
  # Correct the kernel26fr.install
  cd $startdir
  sed -i "s|initramfs=.*$|initramfs=\"$initramfs\"|" ./kernel26fr.install
  sed -i "s|kern_version=.*$|kern_version=\"${_kernrel}\"|" ./kernel26fr.install
  sed -i "s|vmlinuz_version=.*$|vmlinuz_version=\"vmlinuz26emission${CONFIG_LOCALVERSION}\"|" ./kernel26fr.install
  sed -i "s|gensplash=.*$|gensplash=\"${choicesplash}\"|" ./kernel26fr.install
  sed -i "s|splashtheme=.*$|splashtheme=\"${splashtheme}\"|" ./kernel26fr.install
  sed -i "s|splashresolution=.*$|splashresolution=\"${splashresolution}\"|" ./kernel26fr.install
  sed -i "s|videomode=.*$|videomode=\"${videomode}\"|" ./kernel26fr.install
  sed -i "s|vgamode=.*$|vgamode=\"${vgamode}\"|" ./kernel26fr.install
  # Correct the pkgname in our PKGBUILD - this allows correct gensync operation
  # NOTE: pkgname variable must be declared with first 10 lines of PKGBUILD!
  sed -i "1,11 s|pkgname=$old_pkgname|pkgname=$pkgname|" ./PKGBUILD
  #sed -i "1,11 s|pkgdesc=.*$|pkgdesc=\"The Linux Kernel with $patch_emission\"|" ./PKGBUILD
  #sed -i "1,11 s|lastknownpatch=.*$|lastknownpatch=\"$patch_emission\"|" ./PKGBUILD
}