#!/bin/bash
# wain@gmx.net
# pacremove is a pacman's wrapper that can look for orphans after removing packages
BEFORE=/tmp/before.$$
AFTER=/tmp/after.$$
VERSION='0.1.0'

if (( $# < 2 ))
then
cat << EOF
pacremove version $VERSION
usage:  pacremove {-R --remove} [options] <package>
options:
  -c, --cascade       remove packages and all packages that depend on them
  -d, --nodeps        skip dependency checks
  -k, --dbonly        only remove database entry, do not remove files
  -n, --nosave        remove configuration files as well
  -s, --recursive     remove dependencies also (that won't break packages)
      --config <path> set an alternate configuration file
      --noconfirm     do not ask for any confirmation
      --noprogressbar do not show a progress bar when downloading files
  -v, --verbose       be verbose
  -r, --root <path>   set an alternate installation root
  -b, --dbpath <path> set an alternate database locationthen
EOF
exit 0
fi

# search orphans before removing
pacman -Qe | awk '{print $1}' > $BEFORE

# remove with pacman
pacman $@

# search orphans after removing
pacman -Qe | awk '{print $1}' > $AFTER

# show new orphans
neworphans=$(comm -1 -3 $BEFORE $AFTER)
[ ! -z $neworphans ] && { echo "This packages are no longer used and can be removed:"; echo $neworphans; }

# remove tmp files
rm $BEFORE $AFTER

exit 0