protocol.pdf: protocol.tex zcash.bib incremental_merkle.pdf key_components.pdf
	$(MAKE) pdf

sapling.pdf: protocol.tex zcash.bib incremental_merkle.pdf key_components_sapling.pdf
	$(MAKE) sapling

.PHONY: pdf
pdf:
	printf '\\renewcommand{\\docversion}{Version %s}' "$$(git describe --tags --abbrev=6)" |tee protocol.ver
	mkdir -p aux
	rm -f aux/protocol.*
	latexmk -bibtex -pdf -auxdir=aux -outdir=aux protocol
	mv -f aux/protocol.pdf .

.PHONY: html
html: protocol.pdf sapling.pdf
	# Can't use --split-pages 1 because XHR doesn't work by default on local files in Chrome.
	pdf2htmlEX --decompose-ligature 1 --font-size-multiplier 65 --fit-width 1000 --dest-dir html protocol.pdf
	pdf2htmlEX --decompose-ligature 1 --font-size-multiplier 65 --fit-width 1000 --dest-dir html sapling.pdf

.PHONY: pvcpdf
pvcpdf:
	printf '\\renewcommand{\\docversion}{Version %s}' "$$(git describe --tags --abbrev=6)" |tee protocol.ver
	mkdir -p aux
	rm -f aux/protocol.*
	latexmk -bibtex -pdf -pvc -auxdir=aux protocol

.PHONY: sapling
sapling:
	printf '\\toggletrue{issapling}\n\\renewcommand{\\docversion}{Version %s [\\SaplingSpec]}' "$$(git describe --tags --abbrev=6)" |tee protocol.ver
	mkdir -p aux
	rm -f aux/sapling.*
	latexmk -bibtex -pdf -jobname=sapling -auxdir=aux -outdir=aux protocol
	mv -f aux/sapling.pdf .

.PHONY: pvcsapling
pvcsapling:
	printf '\\toggletrue{issapling}\n\\renewcommand{\\docversion}{Version %s [\\SaplingSpec]}' "$$(git describe --tags --abbrev=6)" |tee protocol.ver
	mkdir -p aux
	rm -f aux/sapling.*
	latexmk -bibtex -pdf -jobname=sapling -auxdir=aux -pvc protocol

LATEX=pdflatex

.PHONY: nolatexmk-pdf
nolatexmk-pdf:
	printf '\\renewcommand{\\docversion}{Version %s}' "$$(git describe --tags --abbrev=6)" |tee protocol.ver
	# If $(LATEX) fails, touch an input so that 'make' won't think it is up-to-date next time.
	rm -f protocol.aux protocol.bbl protocol.blg protocol.brf protocol.bcf
	$(LATEX) protocol.tex || { touch incremental_merkle.pdf; exit 1; }
	biber protocol
	$(LATEX) protocol.tex || { touch incremental_merkle.pdf; exit 1; }
	$(LATEX) protocol.tex || { touch incremental_merkle.pdf; exit 1; }
	$(LATEX) protocol.tex || { touch incremental_merkle.pdf; exit 1; }

.PHONY: nolatexmk-sapling
nolatexmk-sapling:
	printf '\\toggletrue{issapling}\n\\renewcommand{\\docversion}{Version %s [\\SaplingSpec]}' "$$(git describe --tags --abbrev=6)" |tee protocol.ver
	# If $(LATEX) fails, touch an input so that 'make' won't think it is up-to-date next time.
	rm -f sapling.aux sapling.bbl sapling.blg sapling.brf sapling.bcf
	$(LATEX) -jobname=sapling protocol.tex || { touch incremental_merkle.pdf; exit 1; }
	biber sapling
	$(LATEX) -jobname=sapling protocol.tex || { touch incremental_merkle.pdf; exit 1; }
	$(LATEX) -jobname=sapling protocol.tex || { touch incremental_merkle.pdf; exit 1; }
	$(LATEX) -jobname=sapling protocol.tex || { touch incremental_merkle.pdf; exit 1; }

.PHONY: clean
clean:
	rm -f aux/* html/* protocol.ver \
              protocol.dvi protocol.pdf protocol.bbl protocol.blg protocol.brf     protocol.toc \
              protocol.aux protocol.out protocol.log protocol.bcf protocol.run.xml protocol.fls protocol.fdb_latexmk \
              sapling.dvi  sapling.pdf  sapling.bbl  sapling.blg  sapling.brf      sapling.toc \
              sapling.aux  sapling.out  sapling.log  sapling.bcf  sapling.run.xml  sapling.fls  sapling.fdb_latexmk

optimizer-installed.flag:
	# Nail down git commits to make backdooring somewhat harder.
	git clone https://github.com/pts/sam2p.git
	cd sam2p && git reset --hard a2d7819107324faf7b0904fc7074f7dd4a0e16c7 && $(MAKE)
	git clone https://github.com/pts/tif22pnm.git
	cd tif22pnm && git reset --hard 22217c1a3ea355a899e9c7c79903488ca13d1dfe && $(MAKE)
	git clone https://github.com/pts/pdfsizeopt.git
	cd pdfsizeopt && git reset --hard 47a03403d70f6975888cee966858bebc51b76463
	touch optimizer-installed.flag

.PHONY: clean-optimizer
clean-optimizer:
	rm -rf sam2p tif22pnm pdfsizeopt optimizer-installed.flag

.PHONY: optimize-pdf
optimize-pdf: optimizer-installed.flag
	PATH="${PATH}:$(CURDIR)/sam2p:$(CURDIR)/tif22pnm" pdfsizeopt/pdfsizeopt --v=40 --use-image-optimizer=sam2p \
              --tmp-dir=aux protocol.pdf protocol-opt.pdf
	mv -f protocol-opt.pdf protocol.pdf

.PHONY: optimize-sapling
optimize-sapling: optimizer-installed.flag
	PATH="${PATH}:$(CURDIR)/sam2p:$(CURDIR)/tif22pnm" pdfsizeopt/pdfsizeopt --v=40 --use-image-optimizer=sam2p \
              --tmp-dir=aux sapling.pdf sapling-opt.pdf
	mv -f sapling-opt.pdf sapling.pdf

.PHONY: optimized
optimized: pdf sapling optimize-pdf optimize-sapling