ambevar-dotfiles/.scripts/pacfiles

#!/bin/sh

_usage () {
	cat <<EOF
Usage: ${1##*/} [OPTIONS] PACKAGES

Display size of files in PACKAGES.

  -h:  Display this help.
  -n:  Sort by size.

EOF
}

OPTION_SORT="cat"

while getopts ":hn" opt; do
	case $opt in
	h)
		_usage "$0"
		exit 1 ;;
	n)
		OPTION_SORT="sort -h" ;;
	\?)
		_usage "$0"
		exit 1 ;;
	esac
done

shift $(($OPTIND - 1))

if [ $# -eq 0 ]; then
	echo "Missing argument."
	_usage "$0"
	exit 1
fi

! command -v pacman >/dev/null && echo "You need pacman to run this script." && exit 1
if [ $(pacman -Qq "$@" 2>/dev/null | wc -l) -eq 0 ]; then
	echo "No valid package given." >&2
	exit
fi

## We use "eval" to be compatible with non-POSIX wordsplitting (e.g. zsh).
## WARNING: this only works with GNU 'du'.
du -bch $(pacman -Qlq "$@" | grep -v '.*/$' | sort -u) 2>/dev/null | eval ${OPTION_SORT}