PYTHON = python

# these do not need changing
FILE_WITH_VERSION = findimports.py
FILE_WITH_CHANGELOG = CHANGES.txt

.PHONY: default
default:
	@echo "Nothing to build here"

.PHONY: check test
check test:
	$(PYTHON) testsuite.py

.PHONY: test-all-pythons
test-all-pythons:
	set -e; \
	for ver in 2.4 2.5 2.6 2.7; do \
		if which python$$ver > /dev/null; then \
			$(MAKE) test PYTHON=python$$ver; \
		else \
			echo "=================================="; \
			echo "Skipping python$$ver, not available."; \
			echo "=================================="; \
		fi; \
	done

.PHONY: preview-pypi-description
preview-pypi-description:
	# pip install restview, if missing
	restview -e "$(PYTHON) setup.py --long-description"

.PHONY: dist
dist:
	$(PYTHON) setup.py sdist

.PHONY: distcheck
distcheck:
	# Bit of a chicken-and-egg here, but if the tree is unclean, make
	# distcheck will fail.  Thankfully bzr lets me uncommit.
	@test -z "`bzr status 2>&1`" || { echo; echo "Your working tree is not clean" 1>&2; bzr status; exit 1; }
	make dist
	pkg_and_version=`$(PYTHON) setup.py --name`-`$(PYTHON) setup.py --version` && \
	rm -rf tmp && \
	mkdir tmp && \
	bzr export tmp/tree && \
	cd tmp && \
	tar xvzf ../dist/$$pkg_and_version.tar.gz && \
	diff -ur $$pkg_and_version tree -x PKG-INFO -x setup.cfg -x '*.egg-info' && \
	cd $$pkg_and_version && \
	make dist check && \
	cd .. && \
	mkdir one two && \
	cd one && \
	tar xvzf ../../dist/$$pkg_and_version.tar.gz && \
	cd ../two/ && \
	tar xvzf ../$$pkg_and_version/dist/$$pkg_and_version.tar.gz && \
	cd .. && \
	diff -ur one two -x SOURCES.txt && \
	cd .. && \
	rm -rf tmp && \
	echo "sdist seems to be ok"

.PHONY: releasechecklist
releasechecklist:
	@$(PYTHON) setup.py --version | grep -qv dev || { \
	    echo "Please remove the 'dev' suffix from the version number in $(FILE_WITH_VERSION)"; exit 1; }
	@$(PYTHON) setup.py --long-description | rst2html --exit-status=2 > /dev/null
	@ver_and_date="`$(PYTHON) setup.py --version` (`date +%Y-%m-%d`)" && \
	    grep -q "^$$ver_and_date$$" $(FILE_WITH_CHANGELOG) || { \
	        echo "$(FILE_WITH_CHANGELOG) has no entry for $$ver_and_date"; exit 1; }
	make distcheck

.PHONY: release
release: releasechecklist
	# I'm chicken so I won't actually do these things yet
	@echo "Please run"
	@echo
	@echo "  $(PYTHON) setup.py sdist register upload && bzr tag `$(PYTHON) setup.py --version`"
	@echo
	@echo "Please increment the version number in $(FILE_WITH_VERSION)"
	@echo "and add a new empty entry at the top of the changelog in $(FILE_WITH_CHANGELOG), then"
	@echo
	@echo '  bzr ci -m "Post-release version bump" && bzr push'
	@echo

