#!/bin/bash


PORTAGE_OPTIONS=("--keep-going" "--autounmask-write" "--binpkg-respect-use=y" "--binpkg-changed-deps=y" "--verbose-conflicts" "--backtrack=100")

PORTAGE_UPGRADE_OPTIONS=("-vuNDk")

PORTAGE_ASK="-a"

INTERACTIVE=1

CHROOTED=0

SYNC_COMMAND="emaint sync -a"

int_handler() {
  exit 0
}

trap int_handler INT TERM EXIT

STARTDATE="$(date -Iseconds)"

if [[ -x /etc/cron.daily/porticron ]] ; then
  echo "porticron detected! -> skipping --ask"
  PORTAGE_ASK=""
fi

if [[ ! -t 1 ]] ; then
  echo "No tty connected! -> skipping --ask"
  echo "Waiting 10s for manual abortion..."
  sleep 10
  PORTAGE_ASK=""
  INTERACTIVE=0
fi

if [ "$(stat -c %d:%i /)" != "$(stat -c %d:%i /proc/1/root/.)" ]; then
  CHROOTED=1
fi

if [[  ${1} == "--no-sync" || ${2} == "--no-sync" ]] ; then
  echo "not syncing"
  SYNC_COMMAND=""
fi

if [[  ${1} == "--full" || ${2} == "--full" ]] ; then
  echo "Do a full upgrade including build dependencies"
  PORTAGE_UPGRADE_OPTIONS+=("--with-bdeps=y")
fi

if [[ $CHROOTED == 1 ]] ; then
  SYNC_COMMAND="layman -S"
fi

#any parameter prevents syncing
if [[ ! -z ${SYNC_COMMAND}  ]] ; then
  ${SYNC_COMMAND}
  eix-update >& /dev/null
fi

if eix -u -# sys-apps/portage > /dev/null ; then
  echo "portage update detected -> merging it"

  if eix -u -# app-portage/gentoolkit > /dev/null ; then
    emerge -v1 sys-apps/portage app-portage/gentoolkit
  else
    emerge -v1 portage
  fi
fi

echo "emerge options: ${PORTAGE_OPTIONS[*]}"
emerge $PORTAGE_ASK "${PORTAGE_UPGRADE_OPTIONS[@]}" "${PORTAGE_OPTIONS[@]}" world
echo "emerge return value: $?"

if [[ $INTERACTIVE == 1 ]] ; then
  dispatch-conf
  echo "dispatch-conf return value: $?"

  emerge "${PORTAGE_UPGRADE_OPTIONS[@]}" "${PORTAGE_OPTIONS[@]}" world
  echo "emerge return value: $?"

  dispatch-conf
  echo "dispatch-conf return value: $?"
fi

SETS=("@preserved-rebuild")

if eix -eI smart-live-rebuild &> /dev/null ; then
  SETS+=("@smart-live-rebuild")
fi

echo "Started at $STARTDATE"
echo "***************** rebuild packages *******************"
echo "run emerge -v --getbinpkg=n --usepkg=n ${PORTAGE_OPTIONS[*]} ${SETS[*]}"
emerge -v "${PORTAGE_OPTIONS[@]}" "${SETS[@]}"

if [[ -n "$(which webappup.sh 2> /dev/null)" ]] ; then
  webappup.sh
elif [[ -x "${HOME}/bin/webappup.sh" ]] ; then
  "${HOME}/bin/webappup.sh"
fi

echo "**************** clean /etc/portage/ ***************"
portpeek -rq

#Currently chroots are used to build and preserve packages!
if [[ $CHROOTED == 0 ]] ; then
  echo "**************** clean /usr/portage/distfiles ***********"
  eclean-dist -d

  echo "**************** clean /usr/portage/packages ***********"
  eclean-pkg

  if [[ -n "$(which buildCurrentSymlinkedKernel.sh 2> /dev/null)" ]] ; then
    buildCurrentSymlinkedKernel.sh
  elif [[ -x "${HOME}/bin/buildCurrentSymlinkedKernel.sh" ]] ; then
    "${HOME}/bin/buildCurrentSymlinkedKernel.sh"
  fi
fi


echo "***************** remove unneeded packages *******************"
echo Started at "$STARTDATE"

if [[ $(qlist -I gentoo-sources) != "" ]] ; then
  #make sure that current kernel sources are kept:
  CURRENTKERNELVERSION="$(uname -r)"
  echo current running kernel:"${CURRENTKERNELVERSION/"-gentoo"/}"
  emerge --noreplace gentoo-sources:"${CURRENTKERNELVERSION/"-gentoo"/}"
  emerge -a  "${PORTAGE_OPTIONS[@]}" --depclean
  if [[ "$(grep -c gentoo-sources /var/lib/portage/world)" -gt 2 ]] ; then
    echo too many kernelversion in world file!
    grep gentoo-source /var/lib/portage/world
  fi
  emerge "${PORTAGE_OPTIONS[@]}" --deselect gentoo-sources:"${CURRENTKERNELVERSION/"-gentoo"/}"
fi

if [[ -n "$(which restart_services)" && $CHROOTED == "1" ]] ; then
  restart_services -l
fi
echo "Started at $STARTDATE"
echo "  Ended at $(date -Iseconds)"