#!/bin/sh
# $FreeBSD$

if [ -z "${STAGEDIR}" -o -z "${PREFIX}" -o -z "${LOCALBASE}" ]; then
	echo "STAGEDIR, PREFIX, LOCALBASE required in environment." >&2
	exit 1
fi

warn() {
	echo "Warning: $@" >&2
}

err() {
	echo "Error: $@" >&2
}

shebang() {
	rc=0
	for f in `find ${STAGEDIR} -type f`; do
		interp=$(sed -n -e '1s/^#![[:space:]]*\([^[:space:]]*\).*/\1/p' $f)
		case "$interp" in
		"") ;;
		/usr/bin/env) ;;
		${LOCALBASE}/*) ;;
		${PREFIX}/*) ;;
		/usr/bin/awk) ;;
		/usr/bin/sed) ;;
		/bin/sh) ;;
		*)
			err "${interp} is an invalid shebang you need USES=shebangfix for ${f#${STAGEDIR}${PREFIX}/}"
			rc=1
			;;
		esac
	done
}

symlinks() {
	rc=0
	for l in `find ${STAGEDIR} -type l`; do
		link=$(readlink $l)
		case "${link}" in
		${STAGEDIR}*) err "Bad symlinks $l pointing inside the stage directory"
			rc=1
			;;
		esac
	done
}

paths() {
	rc=0
	dirs="${STAGEDIR} ${WRKDIR}"
	for f in `find ${STAGEDIR} -type f`;do
		for d in ${dirs}; do
			if grep -q ${d} ${f} ; then
				err "${f} is referring to ${d}"
				rc=1
			fi
		done
	done
}

checks="shebang symlinks paths"

ret=0
cd ${STAGEDIR}
for check in ${checks}; do
	${check} || ret=1
done

exit $ret