#
# update.sh - Updates QiLinux sources
#
# Copyright (c) 2005-2007 by Silvan Calarco <silvan.calarco@mambasoft.it>
#
# 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.

. ./VERSION
. ./functions.inc.sh
. ./defs.inc.sh

tmpfile=`mktemp -q -t ${0##*/}.XXXXXXXX` ||
 { echo "${0##*/}: error: cannot create temporary files." >&2
    { (exit 1); exit 1; }; }

trap "rm -f $tmpfile" 0 1 2 5 15

copyleft="\
makedist boot CD creator (version $makedist_version)
Copyright (c) 2003-2007 by Silvan Calarco <silvan.calarco@mambasoft.it>
Copyright (c) 2003-2005 by Davide Madrisan <davide.madrisan@qilinux.it>
"

unset branch   # can be 'stable', 'unstable', or 'devel'
makedist_me="${0##*/}"

function usage() {
   echo "\
usage: $makedist_me [-y] [-u[=<opts>]] [-t target] branch
  -u : download setup scripts and files and QiLinux packages
    <opts> can be:
       setup   download the setup scripts and db files
       rpms    download only the RPM packages
       srpms   download only the SRPM packages
       lists   create packages lists for each media
       all     download setup scripts, db files, RPM, SRPM

i.e. $makedist_me -u stable
     $makedist_me -u=setup,rpms stable
     $makedist_me -u=setup devel
" >&2
}

#
# Main
#


while test -n "$1" ; do
   case $1 in
      -u) UPDATE=all ;;
      -u=*) UPDATE="`echo $1 | sed s/.*=//`" ;;
      -h) usage; exit ;;
      -f) force_update=1 ;;
      -F) force_noupdate=1 ;;
      -v) echo "$copyleft"; exit ;;
       *) if test -z $branch ; then branch=$1
          fi ;;
    esac
    shift
done

#MAKEDIST_TARGET=distrocd
#echo $MAKEDIST_TARGET
#TARGETDIR=$TOPDIR/targets/$MAKEDIST_TARGET
#. $TARGETDIR/settings.inc

echo "Updating packages..."
echo " - download from           : repository <$qilinux_ftp>"
unset update_dirs; update=$UPDATE
test -n "`echo $update | sed '/setup\|all/!d'`" &&
   { update_dirs="$UTILSDIR";
     echo "    - update setup files";
     update=`echo $update | sed s/setup/@/`; }
test -n "`echo $update | sed 's/srpms//g;/rpms\|all/!d'`" &&
   { update_dirs="$update_dirs ${RPMDIR}${arch}";
     update_content=true;
     echo "    - update RPM packages";
     update=`echo $update | sed /[^s]*rpms/s/rpms/@/`; }
test -n "`echo $update | sed 's/[^s]rpms//g;/srpms\|all/!d'`" &&
   { update_dirs="$update_dirs $SRPMSDIR";
     echo "    - update SRPM packages";
     update=`echo $update | sed s/srpms/@/`; }
test -n "`echo $update | sed '/lists\|all/!d'`" &&
   { update_lists="true";
     echo "    - update packages lists";
     update=`echo $update | sed s/lists/@/`; }
# exit if an unknown option is found
test -n "`echo $update | sed 's/all//g;s/@//g;s/,//g'`" &&
   { echo "$makedist_me: syntax error in -u options" >&2
      { (exit 1); exit 1; }; }

case "$branch" in
   stable) branch_dir="stable/current" ;;
   unstable) branch_dir="unstable/current" ;;
   devel) branch_dir="devel" ;;
   *) echo "unknown branch ($branch)"
      echo "valid choices are: 'stable', 'unstable', 'devel'"
      exit 1 ;;
esac

#
# rsync_repository
#
# $1: source remote resource
# $2: destination dir
function rsync_repository() {
   rsync -av --delete $1 $2  ||
       { echo "$makedist_me: rsync error $? downloading files from $1" >&2
           { (exit 1); exit 1; }; }

#$qilinux_ftp::ftpqilinux/$branch_dir/$rsync_suffix $local_dest/.. ||

}

# download the user required files from QiLinux repository
if test -n "$update_dirs"; then
   echo "Downloading packages from the ftp repository ($branch_dir)..."

   for local_dest in $update_dirs; do
      mkdir -p $local_dest

      unset mkcd_updates mkcd_private

      case $local_dest in
         *$arch*) rsync_suffix="RPMS/$arch"
	          [ "$branch" = "stable" ] && mkcd_updates="updates/$rsync_suffix"
		  ;;
         *noarch*) rsync_suffix="RPMS/noarch" ;;
         *SRPMS*) rsync_suffix="SRPMS" ;;
         *utils*) rsync_suffix="utils" ;;
      esac

      [ "$qilinux_ftp" ] &&
      {
         rsync_repository $qilinux_ftp::$qilinux_ftp_dir/$branch_dir/$rsync_suffix $local_dest/..
         [ "$mkcd_updates" ] &&
         {
            [ -e $UPDATES_RPMDIR ] || mkdir -p $UPDATES_RPMDIR
	    echo "*** Syncing updates branch"
            rsync_repository $qilinux_ftp::$qilinux_ftp_dir/$branch_dir/$mkcd_updates/.. $UPDATES_RPMDIR
         }     
      }

      [ "$qilinux_private_ftp_dir" ] &&
      {
         [ -e $PRIVATE_RPMDIR ] || mkdir -p $PRIVATE_RPMDIR
	 echo "*** Syncing private branch"
         rsync_repository $qilinux_private_ftp::$qilinux_private_ftp_dir/$rsync_suffix/.. $PRIVATE_RPMDIR
      }
   done
fi
echo
exit 0