#!/bin/bash
#
# jail-upgrade v0.5: upgrade packages in jails
# feedback: rhatto@riseup.net | GPL
#
#  Jail-upgrade 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 any later version.
#
#  Jail-upgrade 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.
#
#  You should have received a copy of the GNU General Public License along with
#  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#

COMMON="/usr/libexec/simplepkg/common.sh"

function swaret_jail_upgrade {

  if [ ! -d "$PATCHES_DIR" ]; then
    cd $PATCHES_DIR
    for installed in `ls $1/var/log/packages/$pack* 2> /dev/null`; do
      if [[ $pack == `package_name $installed.tgz` ]]; then
        if [[ "`basename $installed`" != "`basename $file .tgz`" ]]; then
          ROOT=$1 upgradepkg $file
        fi
      fi
    done
  fi
}

function simplaret_jail_upgrade {

  echo upgrading jail $1...

  VERSION="`cat $1/etc/slackware-version | awk '{ print $2 }' | sed -e 's/.0$//'`"
  ARCH="`cat $1/etc/slackware-version | awk '{ print $3 }' | sed -e 's/(//' -e 's/)//'`"

  if [ -z "$ARCH" ]; then
    ARCH="i386"
  fi

  if [ -d "$PATCHES_DIR/$ARCH/$VERSION" ]; then
    cd $PATCHES_DIR/$ARCH/$VERSION
    for file in `ls *tgz`; do
      pack=`package_name $file`
      for installed in `ls $1/var/log/packages/$pack* 2> /dev/null`; do
        if [[ "$pack" == "`package_name $installed.tgz`" ]]; then
          if [[ "`basename $installed`" != "`basename $file .tgz`" ]]; then
            ROOT=$1 upgradepkg $file
          fi
        fi
      done
    done
  else
    echo error: cant upgrade for arch $ARCH and version $VERSION on $1: no such patch dir $PATCHES_DIR/$ARCH/$VERSION
  fi

}

if [ -f "$COMMON" ]; then
  source $COMMON
  eval_config `basename $0`
else
  echo "error: file $COMMON not found, check your `basename $0` installation"
  exit 1
fi

if [ ! -z "$PATCHES" ]; then
  if [ -d "$PATCHES" ]; then
    PATCHES_DIR="$PATCHES" 
  else
    echo "error: folder $PATCHES does not exist"
  fi
fi

if [ "$SIMPLARET" == "simplaret" ]; then
  upgrade_method="simplaret_jail_upgrade"
elif [ "$SIMPLARET" == "swaret" ]; then
  upgrade_method="swaret_jail_upgrade"
else
  echo invalid value $SIMPLARET for SIMPLARET, please check your $CONF
  exit 1
fi

if [ -z "$1" ]; then
  if [ -d "/var/log/packages" ]; then
    $upgrade_method /
  fi
  for vserver in `ls $JAIL_ROOT`; do
    if [ -d "$JAIL_ROOT/$vserver/var/log/packages" ]; then
      $upgrade_method $JAIL_ROOT/$vserver
    fi
  done
elif [ -d "$JAIL_ROOT/$1" ]; then
  if [ -d "$JAIL_ROOT/$1/var/log/packages" ]; then
    $upgrade_method $JAIL_ROOT/$1
  else
    echo error: jail $JAIL_ROOT/$1 dont looks like a slackware system
  fi
else
  echo "error: jail $0 does not exist"
  exit 1
fi