#!/bin/sh

# NOTE

# THIS SCRIPT IS FOR SLACKWARE 15.0!
# To use the -current repo, change RELEASE=15.0 to RELEASE="-current".
# (-current is not actually a release.)

# Also important: Don't forget to blacklist multilib in slackpkg if you
# use it.  /etc/slackpkg/blacklist:
#
# [0-9]+alien
# [0-9]+compat32

# Set MULTILIBDIR to a directory of your choosing.  Make sure that the
# directory is empty before running this for the first time.
# Default: /root/multilib

# You need to be root to run this script.

# This was written from the instructions on alienBOB's multilib blog post:

# https://wiki.alienbase.nl/doku.php?id=slackware:multilib

set -e

RELEASE=15.0
# RELEASE="-current"
MULTILIBDIR="/root/multilib"
mkdir -p "$MULTILIBDIR"
cd "$MULTILIBDIR"

URL="rsync://bear.alienbase.nl/mirrors/people/alien/multilib/$RELEASE/"

# Take an md5sum "snapshot" of the multilib package directory before we start
# and then after syncing take another to compare it with.
md5sum1=$( find "$MULTILIBDIR" -name "*.t?z" | md5sum )

rsync -ruhv --progress --exclude=debug/ --include=*/ --include=*t?z \
  --delete --exclude=* "$URL" ./

# snapshot #2
md5sum2=$( find "$MULTILIBDIR" -name "*.t?z" | md5sum )

if [ "$md5sum1" = "$md5sum2" ]; then
  printf "%s\n" "No changes detected."
  exit 0
fi

# Upgrade/install everything
upgradepkg --reinstall --install-new *.t?z
upgradepkg --install-new slackware64-compat32/*-compat32/*.t?z