spkg/spkg

#!/bin/sh
source="https://git.hippoz.xyz/duck/repo/raw/branch/master"
tmpdir="/tmp"
setup() {
	prefix=$1
	mkdir "${prefix}"/bin
	cp ./spkg "${prefix}"/bin/spkg
	chmod +x "${prefix}"/bin/spkg
	mkdir "${prefix}"/etc/
	mv os-release "${prefix}"/etc/
	mkdir "${prefix}"/usr/
	mkdir "${prefix}"/usr/share
	mkdir "${prefix}"/usr/share/man
	mkdir "${prefix}"/usr/share/man/man1 "${prefix}"/usr/share/man/man2 "${prefix}"/usr/share/man/man3 "${prefix}"/usr/share/man/man4 "${prefix}"/usr/share/man/man5 "${prefix}"/usr/share/man/man6 "${prefix}"/usr/share/man/man7 "${prefix}"/usr/share/man/man8 "${prefix}"/usr/share/man/man9
	install -Dm644 ./man /usr/share/man1/spkg.1
}
removepkg() {
	pkgname=$1
	prefix=$2
	cd /usr/src/"${pkgname}" || exit 2
	{
		. ./PACKAGE
		"pkg_uninstall" "${prefix}"
	}
	sed "s/${pkgname} ${pkg_ver}//" "${prefix}"/var/cache/spkg.cache
}
instpkg() {
	pkgname=$1
	prefix=$2
	mkdir -p "${tmpdir}"/spkg/work/"${1}"-work/
	cd "${tmpdir}"/spkg/work/"${1}"-work/ || exit 2
	mkdir -p "${prefix}"/usr/src/"${pkgname}"
	wget -O "${prefix}"/usr/src/"${pkgname}" "${source}"/"${pkgname}"/PACKAGE	
	cd "${prefix}"/usr/src/"${pkgname}" || exit 2
	export PREFIX="${prefix}"
	export PKGNAME="${pkgname}"
	{
		. ./PACKAGE
		"pkg_install" "${prefix}"
	}
	sed a\ "${pkgname} ${pkg_ver}" "${prefix}"/var/cache/spkg.cache > "${prefix}"/var/cache/spkg.cache
}
update() {
	pkgname=$1
	prefix=$2
	version1=$(grep "${pkgname}" /var/cache/spkg.cache)
	version2=$(wget "${source}"/spkg.cache /tmp/spkg/web.spkg.cache && grep "${pkgname}" /tmp/spkg/web.spkg.cache )
	if [ "$version1" = "${version2}" ]; then
		echo 'Up to date.'
	else
		instpkg "${pkgname}" "${prefix}"
	fi
}
dbquery() {
	pkgname=$1
	wget "${source}"/spkg.cache /tmp/spkg/web.spkg.cache
	grep "${pkgname}" /tmp/spkg/web.spkg.cache
	rm /tmp/spkg/cache || mkdir 2>/dev/null /tmp/spkg
}
dblocal() {
	pkgname=$1
	grep "${pkgname}" /var/cache/spkg.cache
}
dblist() {
	cat /var/cache/spkg.cache
}
usage() {
	echo ' How to use: install to install, update to update, list to list, remove to remove. '
}
version() {
	echo "spkg 21.07.01.2a.nr"
}
case "${1}" in
	setup)
		case "${2}" in
			--root-dir) setup "${3}" ;;
			*) setup "/" ;;
		esac ;;
	remove) 
		case "${2}" in
			--root-dir) removepkg "${3}" "${4}" ;;
			*) removepkg "${3}" "/" ;;
		esac ;;
	install)
		case "${2}" in
			--root-dir) instpkg "${4}" "${3}" ;;
	    	*)  instpkg "${3}" "/" ;;
		esac ;;
    cache)
		case "${2}" in
			clean)
				rm -rf /usr/src/* ;;
			rm)
				rm -rf /usr/src/"${3}" ;;
			save)
				case ${3} in
					to) cp -rv /usr/src/* "${4}"/ ;;
				esac ;;
			database)
				case "${3}" in
					lookup)
						case "${4}" in
							local)
								dblocal "${5}" ;;
							query)
								dbquery "${5}" ;;
						esac;; 
				esac ;;
		esac ;;
	list)
		dblist ;;
	update)
		update "${2}" ;;
    --help)
		usage ;;
    --version)
		version ;;
esac