#!/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
    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/

echo "Checking for updates..."
PKGLIST=`yum --installroot $DOM0_UPDATES_DIR check-update -q | cut -f 1 -d ' '`

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

if [ "$DOIT" != "1" ]; then
    zenity --question --title="Qubes Dom0 updates" \
      --text="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

# qvm-copy-to-vm works only from user
su -c "qvm-copy-to-vm @dom0updates $DOM0_UPDATES_DIR/packages/*.rpm" user