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#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-devel/binutils-config/files/Attic/binutils-config-1.0,v 1.3 2004/12/02 19:41:40 vapier Exp $

# Format of /etc/env.d/binutils/:
#  config-TARGET:	CURRENT=version for TARGET
#  TARGET-VER:		has a TARGET and VER variable

trap ":" INT QUIT TSTP

source /etc/init.d/functions.sh || {
	echo "$0: Could not source /etc/init.d/functions.sh!"
	exit 1
}
umask 022

usage() {
cat << "USAGE_END"
Usage: binutils-config [options] [binutils profile]
Change the current binutils profile, or give info about profiles.

Options:
  -c, --get-current-profile  Print current profile
  -l, --list-profiles        Print a list of available profiles

Profile names are of the form:  <CHOST>-<binutils version>
For example:                    x86_64-pc-linux-gnu-2.15.92.0.2
USAGE_END
}

[ "$#" -lt 1 ] && usage && exit 1

switch_profile() {
	source "${ENV_D}/${PROFILE}"

	ebegin "Switching to ${PROFILE}"

	BINPATH="/usr/${TARGET}/binutils-bin/${VER}"
	cd "${ROOT}/${BINPATH}" || exit 1
	mkdir -p "${ROOT}"/usr/${TARGET}/bin
	for x in * ; do
		ln -sf "${BINPATH}/${x}" "${ROOT}"/usr/${TARGET}/bin/${x}
	done

	LIBPATH="/usr/lib/binutils/${TARGET}/${VER}"
	cd "${ROOT}/${LIBPATH}" || exit 1
	mkdir -p "${ROOT}"/usr/${TARGET}/lib
	ln -sf "${LIBPATH}/ldscripts" "${ROOT}"/usr/${TARGET}/lib/ldscripts
	if [ "${TARGET}" == "${HOST}" ] ; then
		dstlib="${ROOT}"/usr/${HOST}/lib
	else
		dstlib="${ROOT}"/usr/${HOST}/${TARGET}/lib
	fi
	mkdir -p "${dstlib}"
	for x in lib* ; do
		ln -sf "${LIBPATH}/${x}" "${dstlib}/${x}"
	done

	INCPATH="${LIBPATH}/include"
	cd "${ROOT}/${INCPATH}" || exit 1
	if [ "${TARGET}" == "${HOST}" ] ; then
		dstinc="${ROOT}"/usr/include
	else
		dstinc="${ROOT}"/usr/${TARGET}/include
	fi
	mkdir -p "${dstinc}"
	for x in * ; do
		ln -sf "${INCPATH}/${x}" "${dstinc}/${x}"
	done

	eend 0

	echo "CURRENT=${VER}" > "${ENV_D}/config-${TARGET}"

	return 0
}

get_current_profile() {
	if [ ! -f "${ENV_D}/config-${PROFILE}" ] ; then
		eerror "$0: No binutils profile is active!"
		return 1
	fi

	source "${ENV_D}/config-${PROFILE}"

	if [ -z "${CURRENT}" ] ; then
		eerror "$0: No binutils profile is active!"
		return 1
	fi

	echo "${PROFILE}-${CURRENT}"

	return 0
}

list_profiles() {
	local i=1

	if [ "${ROOT}" != "/" ] ; then
		echo "Using binutils-config info in ${ROOT}"
	fi
	target=
	for x in "${ENV_D}"/* ; do
		if [ -f "${x}" -a "${x/\/config-}" == "${x}" ] ; then
			source "${x}"
			if [ "${target}" != "${TARGET}" ] ; then
				[ -n "${target}" ] && echo
				target="${TARGET}"
			fi

			x="${x##*/}"
			if [ -e "${ENV_D}/config-${TARGET}" ] ; then
				source "${ENV_D}/config-${TARGET}"
				[ "${VER}" == "${CURRENT}" ] && x="${x} *"
			fi
			echo " [${i}] ${x}"
			i=$((i + 1))
		fi
	done
}

[ -z "${ROOT}" ] && ROOT="/"
ENV_D="${ROOT}etc/env.d/binutils"

NEED_ACTION="yes"
DOIT="switch_profile"
PROFILE=""

for x in "$@" ; do
	case "${x}" in
		-c|--get-current-profile)
			if [ "${NEED_ACTION}" = "yes" ]
			then
				NEED_ACTION="no"
				DOIT="get_current_profile"
			fi
			;;
		-l|--list-profiles)
			if [ "${NEED_ACTION}" = "yes" ]
			then
				NEED_ACTION="no"
				DOIT="list_profiles"
			fi
			;;
		-h|--help)
			usage
			exit 0
			;;
		-v|--version)
			echo "binutils-config-1.0"
			exit 0
			;;
		-*)
			eerror "$0: Invalid switch!  Run $0 without parameters for help."
			exit 1
			;;
		*)
			if [ -n "${PROFILE}" ] ; then
				eerror "$0: Too many arguments!  Run $0 without parameters for help."
				exit 1
			fi

			if [ -z "$(echo ${x} | tr -d '[:digit:]')" ]
			then
				# User gave us a # representing the profile
				i=1
				for y in "${ENV_D}"/* ; do
					[ "${y/config-}" != "${y}" ] && continue

					if [ -f "${y}" ] && [ "${x}" -eq "${i}" ] ; then
						PROFILE="${y##*/}"
						break
					fi
					i=$((i + 1))
				done
			else
				# User gave us a full HOST-ver
				x="${x##*/}"
				if [ ! -f "${ENV_D}/${x}" ] && [ ! -f "${ENV_D}/config-${x}" ] ; then
					eerror "$0: Could not locate '$x' in '${ENV_D}/'!"
					exit 1
				fi
				PROFILE="${x}"
			fi
			;;
	esac
done

if [ "${DOIT}" != "list_profiles" ] ; then
	if [ -z "${CHOST}" ] ; then
		HOST="$(portageq envvar CHOST)"
	else
		HOST="${CHOST}"
	fi
fi
[ -z "${PROFILE}" ] && PROFILE="${HOST}"
eval ${DOIT}

# vim:ts=4