# YaCy - Makefile  Dependency Updater
# $Id$
# $HeadURL$
# Copyright (C) 2009  Alexander Kahl <e-user@gmx.net>
#
# This file is part of YaCy.
# YaCy is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# YaCy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

TOP := $(dir $(lastword $(MAKEFILE_LIST)))
LIBDIR := ${TOP}lib
MIRRORURL := http://yacy.de/libs
DEPENDENCIES := commons-httpclient-3.1.jar xerces.jar bzip2.jar commons-fileupload-1.2.1.jar commons-logging-1.1.1.jar mysql-connector-java-5.1.7-bin.jar servlet-api.jar commons-jxpath-1.1.jar commons-io-1.4.jar sbbi-upnplib-1.0.4.jar svnRevNr.jar nsisant-1.2.jar domaingraph.jar jsmoothgen-ant.jar tm-extractors-1.0.jar PDFBox-0.7.3.jar jakarta-oro-2.0.7.jar odf_utils_05_11_29.jar FontBox-0.1.0-dev.jar poi-3.0-alpha2-20060616.jar bcprov-jdk14-139.jar jrpm-head.jar jsch-0.1.21.jar J7Zip-modified.jar log4j-1.2.9.jar jmimemagic-0.1.0.jar poi-scratchpad-3.0-alpha2-20060616.jar commons-codec-1.3.jar webcat-0.1-swf.jar tar.jar bcmail-jdk14-139.jar
OBSOLETEDEPS = $(filter-out ${DEPENDENCIES}, $(notdir $(wildcard ${LIBDIR}/*)))
PREREQS := du wget rm mkdir cut

update: $(PREREQS) $(DEPENDENCIES) prune

prune: $(OBSOLETEDEPS)
# Placeholder rule

$(OBSOLETEDEPS):
	@echo "pruning $@"
	@rm -vf "${LIBDIR}/$@"

$(PREREQS):
	@which "$@" > /dev/null 2>&1 || { echo "please install \"$@\""; exit 1; }

$(DEPENDENCIES): $(LIBDIR)
	@test -e "${LIBDIR}/$@" -a ! -w "${LIBDIR}/$@" \
		&& { echo "something's wrong with ${LIBDIR}/$@"; exit 1; } || :
	@test -e "${LIBDIR}/$@" && [[ $$(du "${LIBDIR}/$@"|cut -f1) == 0 ]] \
		&& rm -vf "${LIBDIR}/$@" ||:
	@wget -nv -O "${LIBDIR}/$@" "${MIRRORURL}/$@" || :

$(LIBDIR):
	@mkdir -vp "$@"

.PHONY: update prune