## Licensed under the Apache License, Version 2.0 (the "License"); you may not
## use this file except in compliance with the License. You may obtain a copy of
## the License at
##
##   http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
## WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
## License for the specific language governing permissions and limitations under
## the License.

SPHINXBUILD  := sphinx-build
TEX          := tex
PDFLATEX     := pdflatex
MAKEINFO     := makeinfo

BUILDDIR     := build
SOURCE       := src/
PAPERSIZE    := -D latex_elements.papersize=a4
SPHINXFLAGS  := -a -W -n -A local=1 $(PAPERSIZE) -d $(BUILDDIR)/doctree
SPHINXOPTS   := $(SPHINXFLAGS) $(SOURCE)

ENSURECMD=which $(1) > /dev/null 2>&1 || (echo "*** Make sure that $(1) is installed and on your path" && exit 1)

all: html man

clean:
	rm -rf $(BUILDDIR)

html: $(SPHINXBUILD)
	$(SPHINXBUILD) -b $@ $(SPHINXOPTS) $(BUILDDIR)/$@

latex: $(TEX)
	$(SPHINXBUILD) -b $@ $(SPHINXOPTS) $(BUILDDIR)/$@

pdf: latex $(PDFLATEX)
	$(MAKE) LATEXOPTS=' -interaction=batchmode ' -C $(BUILDDIR)/latex all-pdf

info: $(SPHINXBUILD) $(MAKEINFO)
	$(SPHINXBUILD) -b texinfo $(SPHINXOPTS) $(BUILDDIR)/texinfo
	make -C $(BUILDDIR)/texinfo info

man: $(SPHINXBUILD)
	$(SPHINXBUILD) -b $@ $(SPHINXOPTS) $(BUILDDIR)/$@

check:
	python3 ext/linter.py $(SOURCE)

install-html:
install-pdf:
install-info:
install-man:

install: install-html install-pdf install-info install-man
	# copy-files

distclean: clean
	# delete-installed-files


$(SPHINXBUILD):
	@$(call ENSURECMD,$@)

$(TEX):
	@$(call ENSURECMD,$@)

$(PDFLATEX):
	@$(call ENSURECMD,$@)

$(MAKEINFO):
	@$(call ENSURECMD,$@)

$(PYTHON):
	@$(call ENSURECMD,$@)