PYTHON	    = python
SRCDIR      = $(CURDIR)
TESTDIR     = $(CURDIR)/test
TESTLIB     = $(TESTDIR)/lib
BUILDDIR    = $(CURDIR)/build/lib
DISTDIR     = $(CURDIR)/dist

PYPATH = $(BUILDDIR):$(TESTLIB):$(PYTHONPATH)
COVERAGE = $(or $(shell which coverage), $(shell which python-coverage), \
	   coverage)

all: clean
	PYTHONPATH="$(PYTHONPATH):$(SRCDIR)" $(PYTHON) ./setup.py build

install: all
	PYTHONPATH="$(PYTHONPATH):$(SRCDIR)" $(PYTHON) ./setup.py install

test: all
	retval=0; \
	       for i in `find "$(TESTDIR)" -iname '*.py' -perm -u+x -type f`; do \
	       echo $$i; \
	       PYTHONPATH="$(PYPATH)" $(PYTHON) $$i -v || retval=$$?; \
	       done; exit $$retval

ifeq ($(file),)
test-one:
	echo Run $(make) $@ file=test/some/path
else
test-one: all
	echo $(file) $(case)
	PYTHONPATH="$(PYPATH)" $(PYTHON) $(file) $(case)
endif


all-tests: test-app test-node

test-app:
	$(MAKE) test-one file=test/resources/linux/application.py case=$(case)
test-node:
	$(MAKE) test-one file=test/resources/linux/node.py case=$(case)

coverage: all
	rm -f .coverage
	for i in `find "$(TESTDIR)" -perm -u+x -type f`; do \
		set -e; \
		PYTHONPATH="$(PYPATH)" $(COVERAGE) -x $$i -v; \
		done
	$(COVERAGE) -c
	$(COVERAGE) -r -m `find "$(BUILDDIR)" -name \\*.py -type f`
	rm -f .coverage

clean:
	rm -f $$(find . -name '*.pyc') .coverage *.pcap
	rm -rf "$(BUILDDIR)"

distclean: clean
	rm -rf "$(DISTDIR)"

MANIFEST:
	find . -path ./.hg\* -prune -o -path ./build -prune -o \
		-name \*.pyc -prune -o -name \*.swp -prune -o \
		-name MANIFEST -prune -o -type f -print | \
		sed 's#^\./##' | sort > MANIFEST

dist: MANIFEST
	./setup.py sdist

.PHONY: all clean distclean dist test coverage install MANIFEST

########## for uploading onto pypi
# this assumes you have an entry 'pypi' in your .pypirc
# see pypi documentation on how to create .pypirc
LOCAL_ID=$(shell id)
ifneq "$(LOCAL_ID)" "$(filter $(LOCAL_ID),parmen)"
BUILD_ID=thierry
USE_TWINE=
else
BUILD_ID=mario
USE_TWINE=true
endif

PYPI_TARGET=pypi
PYPI_TARBALL_HOST=$(BUILD_ID)@build.onelab.eu
PYPI_TARBALL_TOPDIR=/build/nepi

VERSION = $(shell cat VERSION)
VERSIONTAG = nepi-$(VERSION)-pypi
VERSIONTAR = nepi-$(VERSION).tar.gz
GIT-TAG-ALREADY-SET = $(shell git tag | grep '^$(VERSIONTAG)$$')
# to check for uncommitted changes
GIT-CHANGES = $(shell echo $$(git diff HEAD | wc -l))
GIT-URL = git://git.onelab.eu/nepi.git

version: nepi/util/version.py
nepi/util/version.py: VERSION nepi/util/version.py.in
	sed -e "s,@VERSIONTAG@,$(VERSION),g" -e "s,@SCMURL@,$(GIT-URL),g" nepi/util/version.py.in > $@

clean: version-clean
version-clean:
	rm -f nepi/util/version.py

##########
# depending on the value of USE_TWINE, we either do the upload with setup.py itself,
# or with the help of twine which apparently is the only way that mario could find out on his setup
define upload_pypi
$(if $(USE_TWINE),./setup.py sdist && twine upload dist/* -r $(1),./setup.py sdist upload -r $(1))
endef

# run this only once the sources are in on the right tag
pypi: version
	@if [ $(GIT-CHANGES) != 0 ]; then echo "You have uncommitted changes - cannot publish"; false; fi
	@if [ -n "$(GIT-TAG-ALREADY-SET)" ] ; then echo "tag $(VERSIONTAG) already set"; false; fi
	@if ! grep -q ' $(VERSION)' CHANGELOG.md ; then echo no mention of $(VERSION) in CHANGELOG.md; false; fi
	@echo "You are about to release $(VERSION) - OK (Ctrl-c if not) ? " ; read _
	git tag $(VERSIONTAG)
	$(call upload_pypi,pypi)
	@if [ ssh $(PYPI_TARBALL_HOST) ls $(PYPI_TARBALL_TOPDIR)/$(VERSIONTAR) ] ;\
	  then echo "$(VERSIONTAR) already present on $(PYPI_TARBALL_HOST) - ignored" ;\
	  else rsync -av dist/$(VERSIONTAR) $(PYPI_TARBALL_HOST):$(PYPI_TARBALL_TOPDIR)/ ;\
	  fi


# it can be convenient to define a test entry, say testpypi, in your .pypirc
# that points at the testpypi public site
# no upload to build.onelab.eu is done in this case 
# try it out with
# pip install -i https://testpypi.python.org/pypi nepi
# dependencies need to be managed manually though
testpypi: version
	$(call upload_pypi,testpypi)

#################### convenience, for debugging only
# make +foo : prints the value of $(foo)
# make ++foo : idem but verbose, i.e. foo=$(foo)
++%: varname=$(subst +,,$@)
++%:
	@echo "$(varname)=$($(varname))"
+%: varname=$(subst +,,$@)
+%:
	@echo "$($(varname))"