Makefile

CABAL = cabal

HAPPY = happy
HAPPY_OPTS = -agc

ALEX = alex
ALEX_OPTS = -g
ALEX_VER = `awk '/^version:/ { print $$2 }' alex.cabal`

SDIST_DIR=dist-newstyle/sdist

sdist ::
	@case "`$(CABAL) --numeric-version`" in \
		2.[2-9].* | [3-9].* ) ;; \
		* ) echo "Error: needs cabal 2.2.0.0 or later (but got : `$(CABAL) --numeric-version`)" ; exit 1 ;; \
	esac
	@if [ "`git status -s`" != '' ]; then \
		echo "Error: Tree is not clean"; \
		exit 1; \
	fi
	$(HAPPY) $(HAPPY_OPTS) src/Parser.y -o src/Parser.hs
	$(ALEX) $(ALEX_OPTS) src/Scan.x -o src/Scan.hs
	mv src/Parser.y src/Parser.y.boot
	mv src/Scan.x src/Scan.x.boot
	$(CABAL) v2-sdist
	@if [ ! -f "${SDIST_DIR}/alex-$(ALEX_VER).tar.gz" ]; then \
		echo "Error: source tarball not found: dist/alex-$(ALEX_VER).tar.gz"; \
		exit 1; \
	fi
	git checkout .
	git clean -f

sdist-test :: sdist sdist-test-only
	@rm -rf "${SDIST_DIR}/alex-${ALEX_VER}/"

sdist-test-only ::
	@if [ ! -f "${SDIST_DIR}/alex-$(ALEX_VER).tar.gz" ]; then \
		echo "Error: source tarball not found: ${SDIST_DIR}/alex-$(ALEX_VER).tar.gz"; \
		exit 1; \
	fi
	rm -rf "${SDIST_DIR}/alex-$(ALEX_VER)/"
	tar -xf "${SDIST_DIR}/alex-$(ALEX_VER).tar.gz" -C ${SDIST_DIR}/
	echo "packages: ." > "${SDIST_DIR}/alex-$(ALEX_VER)/cabal.project"
	cd "${SDIST_DIR}/alex-$(ALEX_VER)/" && cabal v2-test --enable-tests all
	@echo ""
	@echo "Success! ${SDIST_DIR}/alex-$(ALEX_VER).tar.gz is ready for distribution!"
	@echo ""