# SPDX-FileCopyrightText: 2015,2020-2021 Robin Schneider <ypid@riseup.net>
#
# SPDX-License-Identifier: LPPL-1.3c
#
# This work consists of all files listed in manifest.txt.
# For more details about the licensing, refer to the README.md file.

TEXMFHOME ?= $(shell kpsewhich -var-value TEXMFHOME)
SHELL := /bin/bash -o nounset -o pipefail -o errexit

RELEASE_OPENPGP_FINGERPRINT ?= C505B5C93B0DB3D338A1B6005FE92C12EE88E1F0
DOCLICENSE_VERSION ?= $(shell sed --quiet --regexp-extended 's/.* v([0-9.]+) Support for putting documents under a license\]/\1/p;' doclicense.dtx)

.PHONY: all
all: build

.PHONY: build
build: manifest.txt doclicense.sty doclicense.pdf

# Duplicated in ../.github/workflows/ci.yml to have separate sections in the CI
# output for each step.
.PHONY: ci
ci: lint install-symlink build test-package-option-matrix-only-english

.PHONY: install-symlink
install-symlink: doclicense.sty
	mkdir --parents "$(TEXMFHOME)/tex/latex/"
	test -L "$(TEXMFHOME)/tex/latex/doclicense" || ln --no-target-directory --symbolic "$(shell pwd)" "$(TEXMFHOME)/tex/latex/doclicense"

.PHONY: check
check: check-copyright-date manifest.txt doclicense.sty lint

# Run before release.
.PHONY: check-full
check-full: check test-package-option-matrix

.PHONY: test-package-option-matrix
test-package-option-matrix:
	./test-package-option-matrix

.PHONY: test-package-option-matrix-only-english
test-package-option-matrix-only-english:
	./test-package-option-matrix "english"

# CTAN people want this when uploading a release.
.PHONY: check-copyright-date
check-copyright-date: README.md doclicense.dtx
	grep --quiet 'SPDX-FileCopyrightText:.*$(shell date +%Y)\s' README.md
	grep --quiet 'SPDX-FileCopyrightText:.*$(shell date +%Y)\s' doclicense.dtx

.PHONY: release-local
release-local: check-copyright-date
	git tag --sign --local-user "$(RELEASE_OPENPGP_FINGERPRINT)" --message "Released version $(DOCLICENSE_VERSION) of doclicense" "doclicense/v$(DOCLICENSE_VERSION)"

.PHONY: release-publish
release-publish:
	git push --follow-tags

.PHONY: lint
lint: doclicense.dtx
	chktex "$<"
	find -regextype posix-egrep -iregex '.*\.(tex|ldf)' -and -not -iname '*-plaintext.tex' -print0 | xargs --null chktex
	[[ -z "$(shell lacheck "$<" *.ldf | grep 'possible unwanted space')" ]]
	reuse --root . lint

.PHONY: clean
clean:
	rm -rf *.sty *.pdf *.aux *.out *.glo *.gls *.hd *.idx *.ilg *.ind *.log *.toc

doclicense.sty:
doclicense.pdf:

%.sty: %.ins %.dtx
	tex "$<"

%.pdf: %.dtx doclicense.sty
	lualatex "$<"
	makeindex -s gglo.ist -o doclicense.gls doclicense.glo
	makeindex -s gind doclicense
	lualatex "$<"
	# thumbpdf doclicense
	# lualatex "$<"

# The `cd .. && git archive` trick was needed with 2.29.2 so that evaluation of
# the `.gitattributes` file worked correctly.
.FORCE:
manifest.txt: manifest_header.txt Makefile .FORCE
	cat "$<" > "$@"
	echo "% This work consists of the files:" >> "$@"
	cd .. && git archive --worktree-attributes HEAD doclicense | tar -t -f - | grep -v '/$$' | sort >> "$(shell pwd)/$@"
	echo "% and the derived files:" >> "$@"
	echo doclicense.sty doclicense.pdf | tr ' ' '\n' >> "$@"