# Makefile_evio

# Builds EVIO under a new directory rooted in the current working
# directory. The new directory (DIR_NAME) has a name that depends on
# the version being built.

# EVIO_VERSION defines which tagged version to build. It should
# correspond to the name of the desired directory in the repos/tags
# directory of the repository. If left undefined, the latest version
# will be checked out from the repos/trunk.

PWD = $(shell pwd)

DIR_NAME = evio-$(EVIO_VERSION)
TARFILE = evio-$(EVIO_VERSION).tgz
EVIO_HOME = $(PWD)/$(DIR_NAME)

all: env_check prod_link

env_check:
ifdef EVIO_VERSION
	@echo Building EVIO version $(EVIO_VERSION)
else
	@echo error: EVIO_VERSION must be defined ; exit 1
endif

$(EVIO_HOME)/.checkout_done:
	svn co $(SVN_URL)
	date > $@

$(TARFILE):
	wget http://coda.jlab.org/wiki/Downloads/evio/evio-$(EVIO_VERSION)/$(TARFILE)

$(EVIO_HOME)/.untar_done: $(TARFILE)
	tar zxf $(TARFILE)		  

ifndef EVIO_VERSION
make_evio: $(EVIO_HOME)/.checkout_done
else
make_evio: $(EVIO_HOME)/.untar_done
endif
	cd $(EVIO_HOME) ; scons --prefix=. install

prod_link: make_evio
	test -L prod || ln -s $(DIR_NAME) prod # will not overwrite existing link