#!/bin/bash

DOM0_UPDATES_DIR=/var/lib/qubes/dom0-updates

DOIT=0
GUI=1
while [ -n "$1" ]; do
    if [ "x--doit" = "x$1" ]; then
        DOIT=1
    elif [ "x--nogui" = "x$1" ]; then
        GUI=0
    else
        break
    fi
    shift
done

if ! [ -d "$DOM0_UPDATES_DIR" ]; then
    echo "Dom0 updates dir does not exists: $DOM0_UPDATES_DIR"
    exit 1
fi

mkdir -p $DOM0_UPDATES_DIR/etc
cp /etc/yum.conf $DOM0_UPDATES_DIR/etc/

PKGLIST="$*"

if [ "x$PKGLIST" = "x" ]; then
    echo "Checking for dom0 updates..."
    PKGLIST=`yum --installroot $DOM0_UPDATES_DIR check-update -q | cut -f 1 -d ' '`
fi

if [ -z "$PKGLIST" ]; then
    # No new updates
    exit 0
fi

if [ "$DOIT" != "1" ]; then
    PKGCOUNT=`echo $PKGLIST|wc -w`
    zenity --question --title="Qubes Dom0 updates" \
      --text="$PKGCOUNT updates for dom0 available. Do you want to download its now?" || exit 0
fi

mkdir -p "$DOM0_UPDATES_DIR/packages"

set -e

if [ "$GUI" = 1 ]; then
    ( echo "1"
    yumdownloader --destdir "$DOM0_UPDATES_DIR/packages" --installroot "$DOM0_UPDATES_DIR" $PKGLIST
    echo 100 ) | zenity --progress --pulsate --auto-close --auto-kill \
         --text="Downloading updates for Dom0, please wait..." --title="Qubes Dom0 updates"
else
    yumdownloader --destdir "$DOM0_UPDATES_DIR/packages" --installroot "$DOM0_UPDATES_DIR" $PKGLIST
fi

/usr/lib/qubes/qrexec_client_vm dom0 qubes.ReceiveUpdates /usr/lib/qubes/qfile-agent $DOM0_UPDATES_DIR/packages/*.rpm