#!/bin/bash
#
#    Copyright (C) 2006  Brian Brazil
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
#

set -ex

. config

function ensure_updated {
  # Parameters: 
  # $1 Upstream binary package name
  # $2 Our binary package name
  # $3 Release
  # $4 Build script
  # $5 Version in ./config
  UPSTREAM_VERSION=$(reprepro -b $REPODST -T deb list $3 $1 | cut -f 3 -d ' ' | fgrep -v $DISTRONAME_L) || true

  OUR_VERSION=$(reprepro -b $REPODST -T deb list $3 $2 | cut -f 3 -d ' ' | fgrep $DISTRONAME_L) || true
  
  # Get the version per the config file
  CONFIG_VERSION=${OUR_VERSION#*$DISTRONAME_L}
  
  if ! [ -z "$UPSTREAM_VERSION" -a -z "$OUR_VERSION" ]; then
    FOUND=1   # Found a kernel
  fi

  if [ -n "$UPSTREAM_VERSION" ]; then  # We have something to build from
    # We haven't built yet, or are out of date
    if [ -z "$OUR_VERSION" ] || dpkg --compare-versions $UPSTREAM_VERSION gt $OUR_VERSION; then 
      add_package "$2" "$5" "$UPSTREAM_VERSION" "$3" "$4"
      return
    fi
    # Has the version in the config file changed?
    if [ -n "$OUR_VERSION" ]; then if [ "$CONFIG_VERSION" -lt "$5" ]; then
      add_package "$2" "$5" "$UPSTREAM_VERSION" "$3" "$4"
      return
    fi; fi
  else
    # Has the version in the config file changed?
    echo $1 Version:"$OUR_VERSION" Package:$CONFIG_VERSION Config:$5
    if [ -n "$OUR_VERSION" ]; then if [ "$CONFIG_VERSION" -lt "$5" ]; then
      # Remove our version in the repo
      RELEASE=$3 ./remove-package $2
      REDO=1
    fi; fi
  fi
}

function add_package {
  # Parametes:
  # $1 Our binary package name
  # $2 Version in ./config
  # $3 Upstream version
  # $4 Release
  # $5 Build script

  # Check if some other release already has it, remove epoch
  NEW_VERSION="${3#*:}${DISTRONAME_L}$2"
  DIR=$(reprepro -b $REPODST dumpreferences | fgrep "/$1_${NEW_VERSION}_" | cut -d/ -f 2-4 | head -1)
  if [ -n "$DIR" ]; then 
    # In another component - use that
    for i in $REPODST/pool/$DIR/*_"${NEW_VERSION}"_*.deb; do
      reprepro -b $REPODST includedeb $4 $i
    done
  else
    # Build it
    if [ 1 == "$DONT_CHROOT" ]; then
      # Some things need to manipulate the repo itself
      CHROOTDIR=$CHROOTDIR RELEASE=$4 VERSION="=$3" $5 || exit 1
    else
      chroot $CHROOTDIR bash -c "cd /builder && RELEASE=$4 VERSION='=$3' $5" || exit 1
      reprepro -Vb $REPODST include $4 $CHROOTDIR/$WORKINGDIR/*.changes
    fi
  fi

}

if [ 1 == $BACKPORTS ]; then EXTRAS="-backports"; fi
if [ 1 == $UPDATES ]; then EXTRAS="$EXTRAS -updates"; fi

REDO=1
while [ $REDO -eq 1 ]; do  #If versions in the config change, we could need to redo the lot
  REDO=0
  reprepro --noskipold -Vb $REPODST update

  for i in '' -security $EXTRAS; do
    ./update-chroot $i
    CHROOTDIR=$WORKINGDIR/$MIRRORDIST$i

    # General
    ensure_updated base-files base-files $RELEASE$i ./gen-base-files $BASE_FILES_VERSION
    ensure_updated ubiquity ubiquity $RELEASE$i ./gen-ubiquity $UBIQUITY_VERSION
    ensure_updated example-content example-content $RELEASE$i ./gen-example-content $EXAMPLE_CONTENT_VERSION
    ensure_updated launchpad-integration launchpad-integration $RELEASE$i ./gen-launchpad-integration $LAUNCHPAD_INTEGRATION_VERSION
    ensure_updated python-apt python-apt $RELEASE$i ./gen-python-apt $PYTHON_APT_VERSION
    ensure_updated module-init-tools module-init-tools $RELEASE$i ./gen-module-init-tools $MODULE_INIT_TOOLS_VERSION

    # Gnome
    ensure_updated ubuntu-artwork $DISTRONAME_L-artwork $RELEASE$i ./gen-artwork $ARTWORK_VERSION
    DONT_CHROOT=1 ensure_updated ubuntu-artwork ubuntu-artwork $RELEASE$i "./remove-package ubuntu-artwork" ''
    ensure_updated ubuntu-desktop $DISTRONAME_L-desktop $RELEASE$i ./gen-meta $META_VERSION
    DONT_CHROOT=1 ensure_updated ubuntu-desktop ubuntu-desktop $RELEASE$i "./remove-package ubuntu-desktop" ''
    ensure_updated human-icon-theme human-icon-theme $RELEASE$i ./gen-human-icon-theme $HUMAN_ICON_THEME_VERSION
    #ensure_updated firefox firefox $RELEASE$i ./gen-firefox $FIREFOX_VERSION
    ensure_updated gnome-about gnome-about $RELEASE$i ./gen-gnome-desktop $GNOME_DESKTOP_VERSION
    ensure_updated gnome-panel gnome-panel $RELEASE$i ./gen-gnome-panel $GNOME_PANEL_VERSION
    ensure_updated epiphany-browser epiphany-browser $RELEASE$i ./gen-epiphany-browser $EPIPHANY_BROWSER_VERSION
    ensure_updated yelp yelp $RELEASE$i ./gen-yelp $YELP_VERSION
    ensure_updated app-install-data app-install-data $RELEASE$i ./gen-app-install-data-ubuntu $APP_INSTALL_DATA_UBUNTU_VERSION

    # KDE
    #ensure_updated kubuntu-default-settings k$DISTRONAME_L-default-settings $RELEASE$i ./gen-kdefault-settings $KDEFAULT_SETTINGS_VERSION
    #ensure_updated kubuntu-desktop k$DISTRONAME_L-desktop $RELEASE$i ./gen-kmeta $KMETA_VERSION  
    #DONT_CHROOT=1 ensure_updated kubuntu-desktop kubuntu-desktop $RELEASE$i "./remove-package kubuntu-desktop" ''

    # GLX is non-free
    ensure_updated xserver-xorg-core xserver-xorg-core $RELEASE$i ./gen-xorg-server $XORG_SERVER_VERSION
    DONT_CHROOT=1 ensure_updated libgl1-mesa-dev libgl1-mesa-dev $RELEASE$i ./gen-mesa $MESA_VERSION
  
    # Non-Free, or no valid use in gNewSense
    DONT_CHROOT=1 ensure_updated linuxsampler linuxsampler $RELEASE$i "./remove-package linuxsampler" ''
    DONT_CHROOT=1 ensure_updated nvidia-xconfig nvidia-xconfig $RELEASE$i "./remove-package nvidia-xconfig" ''
    DONT_CHROOT=1 ensure_updated linux-wlan-ng-firmware linux-wlan-ng-firmware $RELEASE$i "./remove-package linux-wlan-ng-firmware" ''
    DONT_CHROOT=1 ensure_updated bcm43xx-fwcutter bcm43xx-fwcutter $RELEASE$i "./remove-package bcm43xx-fwcutter" ''
    DONT_CHROOT=1 ensure_updated b43-fwcutter b43-fwcutter $RELEASE$i "./remove-package b43-fwcutter" ''
    DONT_CHROOT=1 ensure_updated isdnactivecards isdnactivecards $RELEASE$i "./remove-package isdnactivecards" ''
    DONT_CHROOT=1 ensure_updated bind bind $RELEASE$i "./remove-package bind" ''
    DONT_CHROOT=1 ensure_updated helix-player helix-player $RELEASE$i "./remove-package helix-player" ''
    DONT_CHROOT=1 ensure_updated x11proto-gl-dev x11proto-gl-dev $RELEASE$i "./remove-package x11proto-gl-dev" ''
    DONT_CHROOT=1 ensure_updated nikto nikto $RELEASE$i "./remove-package nikto" ''
    DONT_CHROOT=1 ensure_updated firefox-3.0 firefox-3.0 $RELEASE$i "./remove-package firefox-3.0" ''
    DONT_CHROOT=1 ensure_updated firefox-2.0 firefox-2.0 $RELEASE$i "./remove-package firefox-2.0" ''
    DONT_CHROOT=1 ensure_updated jockey-common jockey-common $RELEASE$i "./remove-package jockey-common" ''
    DONT_CHROOT=1 ensure_updated vrms vrms $RELEASE$i "./remove-package vrms" ''

    FOUND=0
    for n in `seq 50 -1 12`; do
      export KERNEL_VERSIONPART=$n  #Used by ./gen-kernel
      if [ $FOUND -eq 0 ]; then
        ensure_updated linux-image-2.6.24-$n-386 linux-image-2.6.24-$n-386 $RELEASE$i ./gen-kernel $KERNEL_VERSION
				ensure_updated linux-ubuntu-modules-2.6.24-$KERNEL_VERSIONPART-386 linux-ubuntu-modules-2.6.24-$KERNEL_VERSIONPART-386 $RELEASE$i ./gen-linux-ubuntu-modules $LINUX_UBUNTU_MODULES_VERSION
      else
        #Only keep one
        RELEASE=$RELEASE$i ./remove-kernel linux 2.6.24
        RELEASE=$RELEASE$i ./remove-kernel linux-ubuntu-modules-2.6.24 2.6.24
      fi
    done

    # User-defined packages
    if [ -d packages/$RELEASE$i ]; then
			for PKG in packages/$RELEASE$i/*; do
				PKGNAME=${PKG##*/}
				PKG_VERSION=$(sed '1{s/.*(\(.*\)).*/\1/;q}' $PKG/debian/changelog)
				REPO_VERSION=$(reprepro -b $REPODST -T deb list $RELEASE$i $PKGNAME | cut -f 3 -d ' ') || true
				if [ -z "$REPO_VERSION" ] || dpkg --compare-versions $PKG_VERSION gt $REPO_VERSION; then
					rm -rf $CHROOTDIR/$WORKINGDIR
					mkdir -p $CHROOTDIR/$WORKINGDIR
					cp -r $PKG $CHROOTDIR/$WORKINGDIR
					chroot $CHROOTDIR bash -c "cd $WORKINGDIR/$PKGNAME && dpkg-buildpackage -rfakeroot -us -uc"
					reprepro -Vb $REPODST include $RELEASE$i $CHROOTDIR/$WORKINGDIR/*.changes
				fi
			done
   fi

  done
done

# Extra meta packages
./gen-emeta

echo "do-update completed"