#!/bin/sh

# _noauto* wrapper for builtin rpm Provides generator
# requires:		/bin/sh, /usr/bin/rpmdeps, coreutils, findutils
# input (stdin):	filenames (one per line)
# output (stdout):	Provides list (one per line)

# note that no large list is stored in shell variable - this was VERY slow

ulimit -c 0

PERLOPT="--define=__perl_provides /bin/sh -c 'cat >/dev/null'"
PERLOPT2="--define=__perl_requires /bin/sh -c 'cat >/dev/null'"
PHPOPT="--define=__php_provides /bin/sh -c 'cat >/dev/null'"
PHPOPT2="--define=__php_requires /bin/sh -c 'cat >/dev/null'"
noprovfiles=''
noprov=''
buildroot=''
while [ $# -gt 0 ]; do
	case "$1" in
	  --with-perl)
		PERLOPT=""
		PERLOPT2=""
		;;
	  --with-php)
		PHPOPT=""
		PHPOPT2=""
		;;
	  --buildroot=*)
		buildroot="${1#--buildroot=}"
		;;
	  --noautoprovfiles=*)
		for i in ${1#--noautoprovfiles=} ; do
		        noprovfiles="${noprovfiles}\|${buildroot}${i}"
		done
		;;
	  --noautoprov=*)
		for i in ${1#--noautoprov=} ; do
			noprov="${noprov}\|${i}"
		done
	esac
	shift
done

if [ -r /etc/rpm/noautoprovfiles ]; then
	for i in `cat /etc/rpm/noautoprovfiles | grep -v '^#'`; do
		noprovfiles="${noprovfiles}\|${buildroot}${i}"
	done
fi

if [ -r /etc/rpm/noautoprov ]; then
	for i in `cat /etc/rpm/noautoprov | grep -v '^#'`; do
		noprov="${noprov}\|${i}"
	done
fi

# rpmdeps output seems sorted, but resort it in case of long list split
grep -v -e "^\(${noprovfiles}\)\$" | tr '\n' '\0' | \
	xargs -r -0 /usr/bin/rpmdeps "${PERLOPT}" "${PERLOPT2}" \
		"${PHPOPT}" "${PHPOPT2}" --provides | \
	LC_ALL=C sort -u | grep -v -e "^\(${noprov}\)\$"

exit 0