#!/bin/bash
#
# netsrpm-install.sh - Build srpms that download sources from network
#
# Copyright (C) 2003-2012 by Silvan Calarco <silvan.calarco@mambasoft.it>
# Copyright (C) 2005 by Massimo Pintore <massimo.pintore@qilinux.it>
# Copyright (C) 2005-2007 by Davide Madrisan <davide.madrisan@qilinux.it>

me="${0##*/}"
DISTRO_SRPMS_DIR=/usr/share/openmamba/SRPMS
rpmdir=$(rpm --eval=%{_rpmdir} 2>/dev/null)

while [ "$1" ]; do
   case $1 in
      -c) CHECK_MODE=1 ;;
      -u) UPGRADE_MODE=1 ;;
      *) PACKAGES="$PACKAGES $1"
   esac
   shift
done

if [ -z "$PACKAGES" ]; then
   echo "Usage:
$me [-c] pkgname ...

-c: only check and exit (returns: 0: up-to-date; 1: needs update; 2: not installed)
-u: only upgrade if already installed
"
   exit 255
fi

function check_if_already_installed() {
   rpm -q $1 &>/dev/null
   if [ $? -eq 0 ]; then
      notify-send -a $"Network software installation" -i $icon "$pckname" "$pckname: "$"already installed."
   else
      notify-send -a $"Network software installation" -i $icon "$pckname" $"There was an error installing"" $pckname!"
   fi
}

for pckname in $PACKAGES; do

   icon=`grep Icon= /usr/share/applications/openmamba-$pckname.desktop | sed "s|Icon=||"`

   SRPM_NAME=`\
      find $DISTRO_SRPMS_DIR \
         -regex ".*/${pckname//+/\\+}-[^-]*-[^-]*" -printf "%f " 2>/dev/null`

   [ "$SRPM_NAME" ] || {
      echo "$me: $pckname is missing in $DISTRO_SRPMS_DIR; aborting."
      exit 255
   }

   SRPM_VERSION=`\
      echo $SRPM_NAME | \
      sed "s|${pckname//+/\\+}-\([^-]*-[^-]*\).src.rpm|\1|" 2>/dev/null`

   RPM_INSTALLED=`rpm -q $pckname`
   [ $? -eq 0 ] || RPM_INSTALLED=

   RPM_INSTALLED_VERSION=`\
      echo $RPM_INSTALLED | \
      sed "s|${pckname//+/\\+}-\([^-]*-[^-]*\)\..*|\1|" 2>/dev/null`

   echo "Package name:      $pckname"
   echo "Installed version: $RPM_INSTALLED_VERSION"
   echo "Last version:      $SRPM_VERSION"
   echo

   if [ "$RPM_INSTALLED_VERSION" != "$SRPM_VERSION" ]; then
      if [ "$RPM_INSTALLED_VERSION" ]; then
         UPDATE_NEEDED=1
      elif [ "$UPGRADE_MODE" ]; then
         continue
      fi
   elif [ "$UPGRADE_MODE" ]; then
      continue
   fi

   if [ ! "$CHECK_MODE" ]; then
      SRPM_PATH=${DISTRO_SRPMS_DIR}/${SRPM_NAME}

      if [ ! -f $SRPM_PATH ]; then
         echo "$me: "$"missing SRPM \`$SRPM_PATH'."" "$"Aborting..." >&2
         exit 255
      fi

      tmpfile=`mktemp -q -t $me.XXXXXXXX` || {
         echo "$me: error: cannot create temporary files; aborting."
         exit 255
       }

      tmpdir=`mktemp -d -q -t $me.XXXXXXXX` || {
         echo "$me: error: cannot create temporary directory; aborting."
         exit 255
       }

      # get license agreement
      ( rpm2cpio $SRPM_PATH > $tmpfile &&
        cd $tmpdir &&
        cpio --quiet --extract --make-directories < $tmpfile ) 2>/dev/null

      if [ -f $tmpdir/LICENSE ]; then
         license-dialog $tmpdir/LICENSE
         [ $? -ne 0 ] && exit 1
      fi

      notify-send -a $"Network software installation" -i $icon "$pckname" $"$pckname installation in progress..."

      # build rpm
      echo "$me: "$"rebuilding package \`$SRPM_PATH'..."
      rpmbuild --rebuild $SRPM_PATH --define="%_rpmdir $tmpdir"
      if [ $? -gt 0 ]; then
         echo "$me: "$"error rebuilding \`$SRPM_PATH'."" "$"Aborting..." >&2
         check_if_already_installed $pckname
         exit 255
      fi
      RPM_PATH=`find $tmpdir -name \*.rpm`

      # install rpm
      sudo smart install -y $RPM_PATH
      if [ $? -gt 0 ]; then
         echo "$me: "$"error installing \`$SRPM_PATH'."" "$"Aborting..." >&2
         check_if_already_installed $pckname
         exit 255
      fi

      rpm -q $pckname 2>/dev/null
      if [ $? -eq 0 ]; then
         notify-send -a $"Network software installation" -i $icon "$pckname" $"Installation of $pckname successfully completed."
      else
         notify-send -a $"Network software installation" -i $icon "$pckname" $"There was an error installing $pckname!"
      fi
      rm -rf $tmpdir $tmpfile

   fi
done

[ "$UPDATE_NEEDED" ] && {
   echo "Update needed."
   exit 1
}
exit 0