# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as 
# published by the Free Software Foundation here:
# (http://www.gnu.org/licenses/gpl-2.0.html)
# 
# This program 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.

# Some, but not all of variables are required. The following list
# describes the required variables:
#
# * URL:	The main website of the upstream project
# * REPO:	The location of the package on the source pacakge
#		server. This might be one of core, main, dev, or
#		perhaps others.
# * BRIEF:	Short description, should be 50 chars or less
# * SNAPVER:	This is the package version. When a package is
#		changed, but no changes are made to the source code
#		this value should be increased. This would include
#		things like usher being modified, changes to default
#		configuration files, file permissions, etc.
# * ARCHIVE:	The default commands that set this variable should
#		work in most cases, but in some cases it may need
#		to be modified. This variable should contain the
#		path to the source of the package (./SRC/filename)
# * TYPE:	This is probably not really needed due to the
#		ability	of gnu tar to figure it out on its own.
#		Should probably be removed at some point.
# * SRCDIR:	This is the name of the source directory after the
#		package source is extracted. The default command
#		should in most cases set this automatically.
# * PATCHDIR:	This directory should be ./SRC/patches and is
#		required, whether or not patches are used.
# * VERSION:	This should be set automatically based on the
#		version string in the source directory and SNAPVER.
#		The default command here should work in many cases,
#		but certain packages may need to use a different
#		method.
#
# Variables that aren't required:
#
# * ARCH:	This should be populated for packages which contain
#		compiled binaries. If it is not populated the ARCH
#		will be set to 'noarch'.
# * DEPENDS:	If any other packages are required for this package
#		to function then they need to be listed here,
#		preferably in alphabetical order.
# * BUILDDEPS:	Any package beyond packages from the core repo
#		need to be listed here. The idea is that we
#		can automate building and testing packages
#		from clean core systems. The core repo is
#		intended to include only the base minimum
#		packages which provide a functional system.
# * SRCPKG:	By default this is populated automatically with
#		the name of the package (current directory). If
#		the source package is used to generate multiple
#		packages then this variable should contain the
#		name of the git repo that tracks the source.
# * DESC:	This is to be used to provide a longer description
#		of the package.

export ARCH = x86_64
export DEPENDS = glibc,libpng,ncurses,pcre,readline,zlib
export BUILDDEPS = 
export SRCPKG = slang
export URL = http://www.jedsoft.org/slang/
SNAPVER = 0

ARCHIVE := $(PWD)/SRC/$(shell ls SRC|egrep '(bz2|gz|tar|xz)$$'|tail -1)
TYPE := $(shell file -ib $(ARCHIVE)|cut -d';' -f1|tr -d '\n')
SRCDIR := $(shell tar -tf $(ARCHIVE)|head -1|sed 's/\/.*//')
PATCHDIR := $(PWD)/SRC/patches
export VERSION := $(shell echo $(SRCDIR)|egrep -o '\-[0-9].*'| \
	sed 's/^-//')-$(SNAPVER)

ROOT := $(PWD)/ROOT
SLANGDEV := $(PWD)/slang-dev
SLANGDEVROOT := $(SLANGDEV)/ROOT
SLSH := $(PWD)/slsh
SLSHROOT := $(SLSH)/ROOT
LIBSLANG := $(PWD)/libslang
LIBSLANGROOT :=$(LIBSLANG)/ROOT

$(SLSH): $(LIBSLANGROOT)	
	@install -v -d $(SLSH)/SNAP && \
	if [ -d $(SLSHROOT) ]; then \
		touch $(SLSHROOT); \
	else \
		install -v -d $(SLSHROOT); \
	fi && \
	[ ! -d $(SLSH)/CONFIG ] & install -v -d $(SLSH)/CONFIG && \
	mv -v $(ROOT)/etc $(SLSH)/CONFIG && \
	mv -v $(ROOT)/* $(SLSHROOT) && \
	cd $(SLSH) && make -f ../Makefile.slsh && mv *.snap ../

$(LIBSLANGROOT): $(SLANGDEVROOT)
	@install -v -d $(LIBSLANG)/SNAP && \
	if [ -d $(LIBSLANGROOT) ]; then \
		touch $(LIBSLANGROOT); \
	else \
		install -v -d $(LIBSLANGROOT); \
	fi && \
	if [ ! -d $(LIBSLANGROOT)/usr ]; then \
		install -v -d -m 0755 $(LIBSLANGROOT)/usr; \
	fi && \
	mv -v $(ROOT)/usr/lib $(LIBSLANGROOT)/usr/lib && \
	cd $(LIBSLANG) && make -f ../Makefile.libslang && mv *.snap ../

$(SLANGDEVROOT): $(ROOT)
	@install -v -d $(SLANGDEV)/SNAP && \
	if [ -d $(SLANGDEVROOT) ]; then \
		touch $(SLANGDEVROOT); \
	else \
		install -v -d $(SLANGDEVROOT); \
	fi && \
	for file in `find $(ROOT)|egrep 'man3\/|pkgconfig\/|\.a$$|\.h$$'`; do \
		path=`dirname $$file|sed "s[$(ROOT)[$(SLANGDEVROOT)["`; \
		mkdir -p $$path; \
		mv $$file $$path; \
	done && \
	find $(ROOT) -type d -empty -delete && \
	cd $(SLANGDEV) && make -f ../Makefile.slang-dev && mv *.snap ../

$(SRCDIR)/configure: $(ARCHIVE)
	@if [ '$(TYPE)' = 'application/x-bzip2' ]; then \
		tar -jxf $(ARCHIVE); \
	elif [ '$(TYPE)' = 'application/x-gzip' ]; then \
		tar -zxf $(ARCHIVE); \
	elif [ '$(TYPE)' = 'application/x-tar' ]; then \
		tar -xf $(ARCHIVE); \
	elif [ '$(TYPE)' = 'application/x-xz' ]; then \
		tar -xf $(ARCHIVE); \
	else \
		echo 'Unable to determine archive type'; \
		exit 1; \
	fi
	@touch $(SRCDIR)/configure

$(SRCDIR)/config.log: $(SRCDIR)/configure
	@cd $(SRCDIR) && \
	for patch in `find $(PATCHDIR) -name \*.patch|sort`; do \
		patch --verbose -Np1 -i $$patch; \
	done
	@cd $(SRCDIR); \
	./configure \
		--prefix=/usr \
		--sysconfdir=/etc \
		--with-readline=gnu \
		--build=x86_64-snap-linux-gnu \
		--host=x86_64-snap-linux-gnu \
		--target=x86_64-snap-linux-gnu

$(SRCDIR)/slsh/objs/slsh: $(SRCDIR)/config.log
	@cd $(SRCDIR) && make

$(ROOT): $(SRCDIR)/slsh/objs/slsh
	@if [ -d $(ROOT) ]; then \
		touch $(ROOT); \
	else \
		mkdir -v $(ROOT); \
	fi

	@cd $(SRCDIR) && make install DESTDIR=$(ROOT)

test: $(ROOT)
	@cd $(SRCDIR); \
	make check

clean:
	@rm -rvf $(ROOT) \
		$(SLSH) \
		$(LIBSLANG) \
		$(SLANGDEV) \
		$(SNAPINFO) \
		$(MANIFEST) \
		$(FILES) \
		$(SRCDIR)