vercheck

#!/usr/bin/env bash

repo="$1"
pacbsd_path="$2"
archlinux_path="$3"

die() {
    echo "$@"
    exit 1
}

if [ -z "${repo}" ] || [ -z "${pacbsd_path}" ] || [ -z "${archlinux_path}" ] ; then
	echo "usage: $0 repository PacBSD_tree ArchLinux_tree"
	exit
fi

if [ ! -d "${pacbsd_path}/${repo}" ]; then
	die "No such repo ${repo} in PacBSD tree"
fi

if [ ! -e /usr/bin/abs ]; then
	die "abs tool is not installed. Run 'pacman -s abs'"
else
	su root -c abs "${repo}"
fi

for i in "${pacbsd_path}/${repo}/"*; do
	unset absdpkgver
	unset linuxpkgver

	if [ -d "${i}" ]; then
		source "${i}/PKGBUILD"
		pacbsdpkgver="${pkgver}"
		unset pkgver
		if [ -d "${archlinux_path}/${repo}/${i##*/}" ]; then
			source "${archlinux_path}/${repo}/${i##*/}/PKGBUILD"
			linuxpkgver="${pkgver}"
			unset pkgver
		else
			## check in other repo incase they're different
			for i in core extra community; do
				#skip the repo in $repo
				if [ "${i}" == "${repo}" ]; then
					continue
				else
					if [ -d "${archlinux_path}/${i}/${i##*/}" ]; then
						source "${archlinux_path}/${i}/${i##*/}/PKGBUILD"
						linuxpkgver="${pkgver}"
						unset pkgver
						# break, no point in continuing the loop
						break
					fi
				fi
			done
			continue
		fi
		check=$(vercmp "${pacbsdpkgver}" "${linuxpkgver}")
		if [ "${check}" -lt "0" ]; then
			echo "${i} needs updating: PacBSD: ${pacbsdpkgver} ArchLinux: ${linuxpkgver}"
		fi
		unset check

	fi
done