#!/bin/sh
# Magellan Linux Installer (mage.sh)
# $Header: /home/cvsd/magellan-cvs/magellan-src/mage/usr/lib/mage/mage4.sh,v 1.3 2005-09-09 17:52:55 niro Exp $

# default die function
die()
{
	echo -e ${COLRED}"$@"${COLDEFAULT}
	exit 1
}

# include all needed files
[ -f ${MLIBDIR}/conf/mage.rc.global ] &&  \
	source ${MLIBDIR}/conf/mage.rc.global || \
	die "${MLIBDIR}/conf/mage.rc.global missing"

[ -f /etc/mage.rc ] && source /etc/mage.rc || \
	die "Your /etc/mage.rc is missing. Aborting."

[ -f ${MLIBDIR}/mage.functions.sh ] && \
	source ${MLIBDIR}/mage.functions.sh || \
	die "mage functions missing"

# for tests only
#source /home/tjoke/alx-cvs/magellan-src/mage/usr/lib/mage/mage.rc.global
#source /etc/mage.rc
#source /home/tjoke/alx-cvs/magellan-src/mage/usr/lib/mage/mage4.functions.sh
#MLIBDIR=/home/tjoke/alx-cvs/magellan-src/mage/usr/lib/mage

## only for tests -> normally in /etc/rc.d/init.d/functions
COLRED="\033[1;6m\033[31m"
COLGREEN="\033[1;6m\033[32m"
COLBLUE="\033[1;6m\033[34m"
COLDEFAULT="\033[0m"

if [[ ${NOCOLORS} = true ]]
then
	COLRED=""
	COLGREEN=""
	COLYELLOW=""
	COLBLUE=""
	COLMAGENTA=""
	COLWHITE=""
	COLDEFAULT=""
fi

# export default path
export PATH="${PATH}:${MLIBDIR}"

# export the default C locale
export LC_ALL=C

# sanity checks
[ ! -e ${VIRTUALDB_FILE} ] && touch ${VIRTUALDB_FILE}

if [ ! -e ${VIRTUALDB_DEFAULTS} ] && [[ $1 != update ]]
then
	echo
	echo "Please choose an profile from the mage tree."
	echo "ln -snf ${MAGEDIR}/profiles/profilename /etc/mage-profile"
	exit 1
fi

# default messages
showversion() {
	local MAGEVERSION="$(< ${MLIBDIR}/version)"

	echo -en "Magellan Package Manager v${MAGEVERSION} "
	echo -e  "-- Niels Rogalla (niro@magellan-linux.de)"
}

print_usage(){
	showversion
	echo
	echo "Usage: $(basename $0) [option] pkgname ..."
	echo "Options:"
	echo "     pretend        - pretends dependencies of a package"
	echo "     srcpretend     - pretends dependencies of a package (build from source)"
	echo "     install        - installs a package"
	echo "     srcinstall     - installs a package from source"
	echo "     uninstall      - removes a package"
	echo "     update         - updates mage-tree"
	echo "     uppretend      - pretend dependencies for a system upgrade"
	echo "     upgrade        - runs a complete system upgrade"
	echo "     srcuppretend   - pretend dependencies for a system upgrade from source"
	echo "     srcupgrade     - runs a complete system upgrade from source"
	echo "     search         - searches mage-tree for a package"
	echo "     clean          - removes *all* downloaded packages"
	echo "     unpack         - unpacks *all* needed package for 'foo'"
	echo "     download       - downloads *all* needed packages for 'foo'"
	echo "     version        - prints version info"
	echo
	echo "Other options:"
#	echo "NOINSTALL=yes $(basename $0) srcinstall PACKAGE"
#	echo "Builds a Package with its dependencies, but won't install anything."
#	echo
	echo "USE_UNSTABLE=true $(basename $0) [src]install PACKAGE"
	echo "Overrides stable packages; you can install packages that are marked unstable."
	echo
	echo "USE_TESTING=true $(basename $0) [src]install PACKAGE"
	echo "Overrides stable packages; you can install packages that are marked testing."
	echo
	echo "NOCOLORS=true $(basename $0) [src]install PACKAGE"
	echo "Disables all colors in the messages."
	echo
}


showversion
echo

# before anything run mage_setup
mage_setup || die "error in mage_setup()"

# install method
METHOD="$1"

# initial unversionized packagename, gets overridden later
MAGENAME="$2"

if [[ ${METHOD} != upgrade ]] && \
	[[ ${METHOD} != srcupgrade ]] && \
	[[ ${METHOD} != uppretend ]] && \
	[[ ${METHOD} != srcuppretend ]]
then
	[[ -z ${METHOD} ]] || [[ -z ${MAGENAME} ]] && print_usage && exit 1
fi


case ${METHOD} in
	download)
		# first of all get the right pkg which going to be installed
		PCAT="$(pname2pcat ${MAGENAME})"

		# package does not exists
		[ -z "${PCAT}" ] && die "Package '${MAGENAME}' does not exist."

		# source the highest magefile of this pkg
		source $(get_highest_magefile ${PCAT} ${MAGENAME})

		# convert PKGNAME to PNAME/PVER/PBUILD
		# we're working *only* with these three vars from here on
		PNAME="$(pkgname2pname ${PKGNAME})"
		PVER="$(pkgname2pver ${PKGNAME})"
		PBUILD="$(pkgname2pbuild ${PKGNAME})"

		# get all dependencies of this package
		ALLDEPS="$(${MLIBDIR}/depwalker.sh \
			--method install \
			--pcat ${PCAT} \
			--pname ${PNAME} \
			--pver ${PVER} \
			--pbuild ${PBUILD})"
		fetch_packages ${ALLDEPS} || die "fetching packages"
		md5sum_packages ${ALLDEPS} || die "md5 sum packages"
		;;

	srcdownload)
		# first of all get the right pkg which going to be installed
		PCAT="$(pname2pcat ${MAGENAME})"

		# package does not exists
		[ -z "${PCAT}" ] && die "Package '${MAGENAME}' does not exist."

		# source the highest magefile of this pkg
		source $(get_highest_magefile ${PCAT} ${MAGENAME})

		# convert PKGNAME to PNAME/PVER/PBUILD
		# we're working *only* with these three vars from here on
		PNAME="$(pkgname2pname ${PKGNAME})"
		PVER="$(pkgname2pver ${PKGNAME})"
		PBUILD="$(pkgname2pbuild ${PKGNAME})"

		# get all dependencies of this package
		ALLDEPS="$(${MLIBDIR}/depwalker.sh \
			--method srcinstall \
			--pcat ${PCAT} \
			--pname ${PNAME} \
			--pver ${PVER} \
			--pbuild ${PBUILD})"
		fetch_packages ${ALLDEPS} || die "fetching packages"
		;;

	pretend|srcpretend)
		# first of all get the right pkg which going to be installed
		PCAT="$(pname2pcat ${MAGENAME})"

		# package does not exists
		[ -z "${PCAT}" ] && die "Package '${MAGENAME}' does not exist."

		# source the highest magefile of this pkg
		source $(get_highest_magefile ${PCAT} ${MAGENAME})

		# convert PKGNAME to PNAME/PVER/PBUILD
		# we're working *only* with these three vars from here on
		PNAME="$(pkgname2pname ${PKGNAME})"
		PVER="$(pkgname2pver ${PKGNAME})"
		PBUILD="$(pkgname2pbuild ${PKGNAME})"

		# abort if already installed
		if is_installed ${PCAT}/${PNAME}-${PVER}-${PBUILD}
		then
			echo -en "Package "
			echo -en "${COLRED}${PNAME}-${PVER}-${PBUILD}${COLDEFAULT}"
			echo -e  " already installed."
			exit 3
		fi
		# get all dependencies of this package
		${MLIBDIR}/depwalker.sh \
			--method ${METHOD} \
			--pcat ${PCAT} \
			--pname ${PNAME} \
			--pver ${PVER} \
			--pbuild ${PBUILD}
		;;

	install)
		# first of all get the right pkg which going to be installed
		PCAT="$(pname2pcat ${MAGENAME})"

		# package does not exists
		[ -z "${PCAT}" ] && die "Package '${MAGENAME}' does not exist."

		# source the highest magefile of this pkg
		source $(get_highest_magefile ${PCAT} ${MAGENAME})

		# convert PKGNAME to PNAME/PVER/PBUILD
		# we're working *only* with these three vars from here on
		PNAME="$(pkgname2pname ${PKGNAME})"
		PVER="$(pkgname2pver ${PKGNAME})"
		PBUILD="$(pkgname2pbuild ${PKGNAME})"

		if is_installed ${PCAT}/${PNAME}-${PVER}-${PBUILD}
		then
			echo -en "Package "
			echo -en "${COLRED}${PNAME}-${PVER}-${PBUILD}${COLDEFAULT}"
			echo -e  " already installed."
			exit 3
		fi

		# get all dependencies of this package
		ALLDEPS="$(${MLIBDIR}/depwalker.sh \
			--method ${METHOD} \
			--pcat ${PCAT} \
			--pname ${PNAME} \
			--pver ${PVER} \
			--pbuild ${PBUILD})"

		# first fetch all packages
		fetch_packages ${ALLDEPS} || die "fetching packages"
		md5sum_packages ${ALLDEPS} || die "md5 sum packages"
		unpack_packages ${ALLDEPS} || die "unpacking packages"
		install_packages ${ALLDEPS} || die "installing packages"
		;;

	srcinstall)
		# first of all get the right pkg which going to be installed
		PCAT="$(pname2pcat ${MAGENAME})"

		# package does not exists
		[ -z "${PCAT}" ] && die "Package '${MAGENAME}' does not exist."

		# source the highest magefile of this pkg
		source $(get_highest_magefile ${PCAT} ${MAGENAME})

		# convert PKGNAME to PNAME/PVER/PBUILD
		# we're working *only* with these three vars from here on
		PNAME="$(pkgname2pname ${PKGNAME})"
		PVER="$(pkgname2pver ${PKGNAME})"
		PBUILD="$(pkgname2pbuild ${PKGNAME})"

		if is_installed ${PCAT}/${PNAME}-${PVER}-${PBUILD}
		then
			echo -en "Package "
			echo -en "${COLRED}${PNAME}-${PVER}-${PBUILD}${COLDEFAULT}"
			echo -e  " already installed."
			exit 3
		fi

		# get all dependencies of this package
		ALLDEPS="$(${MLIBDIR}/depwalker.sh \
			--method ${METHOD} \
			--pcat ${PCAT} \
			--pname ${PNAME} \
			--pver ${PVER} \
			--pbuild ${PBUILD})"

		install_packages --src-install ${ALLDEPS} || die "src-installing packages"
		;;

	uninstall)
			ALLDEPS="$(get_uninstall_candidates --pname ${MAGENAME})"
			if [ -z "${ALLDEPS}" ]
			then
				die "No package installed named '${MAGENAME}'."
			fi
			uninstall_packages ${ALLDEPS}
		;;

	uppretend|srcuppretend)
		${MLIBDIR}/depwalker.sh \
			--method ${METHOD} \
			--pcat ${METHOD} \
			--pname ${METHOD} \
			--pver ${METHOD} \
			--pbuild ${METHOD}
		;;

	upgrade|srcupgrade)
		# get all dependencies of *all* installed packages
		# fake pcat,pname,pver,pbuild ...
		ALLDEPS="$(${MLIBDIR}/depwalker.sh \
			--method ${METHOD} \
			--pcat ${METHOD} \
			--pname ${METHOD} \
			--pver ${METHOD} \
			--pbuild ${METHOD})"

		echo "DEBUG: ${ALLDEPS}"
		;;
	search)
		${MLIBDIR}/pkgsearch.sh ${MAGENAME}
		;;

	unpack)
		# first of all get the right pkg which going to be installed
		PCAT="$(pname2pcat ${MAGENAME})"

		# package does not exists
		[ -z "${PCAT}" ] && die "Package '${MAGENAME}' does not exist."

		# source the highest magefile of this pkg
		source $(get_highest_magefile ${PCAT} ${MAGENAME})

		# convert PKGNAME to PNAME/PVER/PBUILD
		# we're working *only* with these three vars from here on
		PNAME="$(pkgname2pname ${PKGNAME})"
		PVER="$(pkgname2pver ${PKGNAME})"
		PBUILD="$(pkgname2pbuild ${PKGNAME})"

		# get all dependencies of this package
		ALLDEPS="$(${MLIBDIR}/depwalker.sh \
			--method install \
			--pcat ${PCAT} \
			--pname ${PNAME} \
			--pver ${PVER} \
			--pbuild ${PBUILD})"
		fetch_packages ${ALLDEPS} || die "fetching packages"
		md5sum_packages ${ALLDEPS} || die "md5 sum packages"
		unpack_packages ${ALLDEPS} || die "unpacking packages"
		;;

	update)
		syncmage
		;;

	clean)
		cleanpkg
		;;

	version)
		showversion
		;;

	regen-mage-tree)
		if [ -z "${SMAGESCRIPTSDIR}" ] || [ ! -d "${SMAGESCRIPTSDIR}" ]
		then
			echo "SMAGESCRIPTSDIR not found. Check your mage.rc or check out smage repos."
			exit 1
		fi
		for i in $(find ${SMAGESCRIPTSDIR} -type f -name "*.smage2")
		do
			smage2 only-regen-tree "${i}"
		done
		;;

	*)
		print_usage
		;;
esac