cabal := $(wildcard *.cabal)
package := $(notdir ./$(cabal:.cabal=))
version := $(shell sed -ne 's/^version: *\(.*\)/\1/p' $(cabal))
project := $(patsubst %.cabal,%,$(cabal))
cabal_builddir ?= dist-newstyle

override REPL_OPTIONS += -ignore-dot-ghci
override GHCID_OPTIONS += --no-height-limit --reverse-errors --color=always --warnings --restart $(cabal)

all: build
build:
	cabal build $(CABAL_BUILD_FLAGS)
clean c:
	cabal clean
repl:
	cabal repl $(CABAL_REPL_FLAGS) $(project)
ghcid:
	ghcid $(GHCID_OPTIONS) --command 'cabal repl -fno-code $(CABAL_REPL_FLAGS) $(project) $(addprefix --repl-options ,$(REPL_OPTIONS))'

doc:
	cabal haddock --haddock-css ocean --haddock-hyperlink-source

.PHONY: ChangeLog.md
ChangeLog.md:
	! git tag --merged | grep -Fqx $(package)-$(version)
	git diff --exit-code
	git tag -f $(package)-$(version)
	git-chglog --output $@.new --tag-filter-pattern '$(package)-.*' $(package)-$(version)
	touch $@
	cat $@ >>$@.new
	mv -f $@.new $@
	git tag -d $(package)-$(version)
	git add '$@'
	git commit -m 'doc: update `$@`'
tag: ChangeLog.md
	git tag -s -m $(package)-$(version) $(package)-$(version)

tar:
	git diff --exit-code
	reuse lint
	cabal sdist
	cabal haddock --haddock-for-hackage --enable-doc
upload: LANG=C
upload: tar
	git tag --merged | grep -Fqx $(package)-$(version)
	git push --follow-tags $(GIT_PUSH_FLAGS)
	cabal upload $(CABAL_UPLOAD_FLAGS) "$(cabal_builddir)"/sdist/$(package)-$(version).tar.gz
	cabal upload $(CABAL_UPLOAD_FLAGS) --documentation "$(cabal_builddir)"/$(package)-$(version)-docs.tar.gz
%/publish: CABAL_UPLOAD_FLAGS+=--publish
%/publish: %
	
publish: upload/publish

.PHONY: .hlint.yaml
.hlint.yaml: $(shell find src -name '*.hs' -not -name 'HLint.hs')
	sed -i -e '/^# BEGIN: generated hints/,/^# END: generated hints/d' $@
	echo >>$@ '# BEGIN: generated hints'
	hlint --find . | grep -- '- fixity:' | sort -u >>$@
	echo >>$@ '# END: generated hints'
lint: .hlint.yaml
	if hlint --quiet --report=hlint.html -XNoCPP $(HLINT_FLAGS) .; \
	then rm -f hlint.html; \
	else sensible-browser ./hlint.html & fi