# Rules to fetch, build and install external source packages.
#
# TODO:
# - rules for pre-req dependencies
# - rules to build and maintain patches
# - rules to run tests before installing
# - build and run in chroot
# 

arc ?= $(notdir $(url)) 
configure_cmd ?= ./configure
build_cmd ?= make
install_cmd ?= sudo make install
uninstall_cmd ?= sudo make uninstall

ifdef git_url
	fetch_cmd = git clone --depth=1 $(git_url)
	extract_cmd = :
	dir ?= $(notdir $(git_url))
else
	fetch_cmd = curl -L $(url) -o $(arc)
	extract_cmd = gunzip < $(arc) | tar xf -
	dir ?= $(basename $(basename $(arc)))
endif

clean:
	rm -rf .install .build .configure .extract .fetch $(dir)

debug:
	@echo arc = $(arc)
	@echo dir = $(dir)

uninstall: .install
	cd $(dir) && $(uninstall_cmd)
	rm .install

install: .install
build: .build
configure: .configure
extract: .extract
fetch: .fetch

.install: .build
	cd $(dir) && $(install_cmd)
	@touch $@

.build: .configure
	cd $(dir) && $(build_cmd)
	@touch $@

.configure: .extract
	cd $(dir) && $(configure_cmd) $(configure_flags)
	@touch $@

.extract: .fetch
	$(extract_cmd)
	@touch $@

.fetch:
	$(fetch_cmd)
	@touch $@