#!/bin/sh
# $NetBSD: scan,v 1.12 2025/04/09 00:26:33 wiz Exp $
#
# Copyright (c) 2007 Joerg Sonnenberger <joerg@NetBSD.org>.
# All rights reserved.
#
# This code was developed as part of Google's Summer of Code 2007 program.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in
#    the documentation and/or other materials provided with the
#    distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.

. /usr/pkg/etc/pbulk.conf

set -e

if [ "${config_version}" != "0.68" ]; then
	echo "Your configuration has version ${config_version}."
	echo "This version of pbulk expects version 0.68."
	exit 1
fi

if [ "${reuse_scan_results}" = yes -a -f "${bulklog}.old/meta/pscan" ]; then
	echo "Using old scan results from ${bulklog}.old/meta/pscan"
	extra_pscan_args="-L ${bulklog}.old/meta/pscan"
else
	extra_pscan_args=""
fi

case "${strict_mode}" in
[yY][eE][sS])
	extra_presolve_args="-s"
	strict_mode=yes
	;;
*)
	extra_presolve_args=""
	strict_mode=no
	;;
esac

if [ -n "${ignore_missing_dependencies}" ]; then
	echo "The 'ignore_missing_dependencies' configuration variable is obsolete and has no effect." >&2
fi

if [ -z "${limited_list}" ]; then
	echo "Scanning..."
	case "${master_mode}" in
	[nN][oO])
		${pscan} -v -M ${make} ${extra_pscan_args} ${pkgsrc} ${loc}/pscan 2>> ${loc}/pscan.stderr
		;;
	[yY][eE][sS])
		${pscan} -v -I ${pscan_start_script} -m ${master_port_scan} -M ${make} ${extra_pscan_args} ${pkgsrc} ${loc}/pscan 2>> ${loc}/pscan.stderr
		;;
	*)
		echo "master_mode must be either yes or no."
		exit 1
		;;
	esac
	echo "Resolving..."
	if ! ${presolve} ${extra_presolve_args} -v ${loc}/pscan > ${loc}/presolve 2> ${loc}/presolve-err.log; then
		# can only happen in strict mode
		echo "Global dependency resolution failed, check ${loc}/presolve-err.log for details" >&2
	fi
else
	initial=1
	mkdir -p ${loc}
	sed -e 's/\#.*$//' -e 's/[ 	]*$//' -e '/^$/d' "${limited_list}" > ${loc}/missing

	while [ -s ${loc}/missing ]; do
		sort -u ${loc}/missing > ${loc}/missing.s
		echo "Scanning..."
		case "${master_mode}" in
		[nN][oO])
			${pscan} -v -l -M ${make} ${pkgsrc} ${loc}/pscan < ${loc}/missing.s
			;;
		[yY][eE][sS])
			${pscan} -v -l -I ${pscan_start_script} -m ${master_port_scan} -M ${make} ${pkgsrc} ${loc}/pscan < ${loc}/missing.s
			;;
		*)
			echo "master_mode must be either yes or no."
			exit 1
			;;
		esac
		echo "Resolving..."
		if [ "$initial" = 1 ]; then
			${presolve} -i ${loc}/missing -v ${loc}/pscan > ${loc}/presolve
			initial=0
		else
			${presolve} -i ${loc}/missing -v ${loc}/presolve ${loc}/pscan > ${loc}/presolve.new
			cmp -s ${loc}/presolve.new ${loc}/presolve && break
			mv ${loc}/presolve.new ${loc}/presolve
		fi
	done

	if [ -s ${loc}/missing ]; then
		if [ "${strict_mode}" = "yes" ]; then
			echo "Unresolvable dependencies found, exiting"
			cat ${loc}/missing
			exit 1
		fi
		echo "Unresolvable dependencies found, marking packages depending on them as broken:"
		cat ${loc}/missing
		${presolve} -v ${loc}/presolve ${loc}/pscan > ${loc}/presolve.new
		mv ${loc}/presolve.new ${loc}/presolve
	fi
fi
date '+SCAN_END_EPOCHE=%s' >> ${loc}/status
