#!/bin/bash

preCmds=('hostname')
cmds=()
postCmds=('sync')

if which check-kernel >/dev/null 2>&1; then
  postCmds+=('check-kernel -r')
fi

. #ETCDIR#/update-me.conf

if "${hasSudo}"; then
  for ((i=0; i<${postCmds[@]}; i++)); do
    if [ "${postCmd[${i}]}" = 'check-kernel -r' ]; then
      postCmd[${i}]='sudo check-kernel -r';
    fi
  done
fi

if [ ! "$(whoami)" == "root" ]
then
  if ! "${hasSudo}"
  then
    hostname
    err=1
    maxCount=3
    while [ ${err} -eq 1 ] && [ ${maxCount} -gt 0 ]
    do
      su -c "$(readlink -f "$0") || exit 2"
      err=$?
      maxCount=$[${maxCount} - 1]
    done
    exit ${err}
  fi
  pre='sudo'
else
  pre=''
fi

if [ ${#cmds[@]} -eq 0 ]
then
  if [ -d '#ETCDIR#/pacman.d' ]
  then
    cmds=('pacman -Syu' 'pacdiff')
  elif [ -d '#ETCDIR#/ports' ]
  then
    cmds=('ports -u' 'prt-get sysup' 'rejmerge' 'revdep')
  elif [ -d '#ETCDIR#/apt' ]
  then
    cmds=('apt-get update' 'apt-get upgrade' 'apt-get dist-upgrade' 'apt-get autoremove')
  else
    >&2 echo 'Unknown distribution!'
    exit 1
  fi
fi

for cmd in "${preCmds[@]}"
do
  ${cmd}
  err=$?
  if [ ${err} -ne 0 ]
  then
    >&2 echo 'Fehler'
    read s
    exit ${err}
  fi
done

for cmd in "${cmds[@]}"
do
  ${pre} ${cmd}
  err=$?
  if [ ${err} -ne 0 ]
  then
    >&2 echo 'Fehler'
    read s
    exit ${err}
  fi
done

for cmd in "${postCmds[@]}"
do
  ${cmd}
  err=$?
  if [ ${err} -ne 0 ]
  then
    >&2 echo 'Fehler'
    read s
    exit ${err}
  fi
done

>&2 echo 'Erfolg'
read s
exit 0