Makefile

# vim:ft=make:
-include config.mk

BIBTEX    ?= bibtex
PYTHON    ?= python
ASYMPTOTE ?= asy
GNUPLOT   ?= gnuplot
MAXIMA    ?= maxima -b
TEXENGINE ?= pdflatex
MAIN_SRC  ?= main.tex
SOURCES   ?=
PACKAGES  ?=
BUILD_DIR ?= build
VIEWER    ?= xdg-open

MAIN_NAME = $(patsubst %.tex,%,$(MAIN_SRC))
MAIN_TARGET = $(BUILD_DIR)/$(patsubst %.tex,%.pdf,$(MAIN_SRC))
BIBITEM_FILE = $(BUILD_DIR)/$(patsubst %.tex,%.bbl,$(MAIN_SRC))
BIBITEM_REDO_FILE = $(BUILD_DIR)/$(patsubst %.tex,%.REDO.bbl,$(MAIN_SRC))

OBJECTS = $(patsubst %.tex,$(BUILD_DIR)/%.o,$(SOURCES))
OBJECTS_BIBFILES = $(patsubst %.tex,$(BUILD_DIR)/%.obib,$(SOURCES))
OBJECTS_BIBITEM = $(patsubst %.tex,$(BUILD_DIR)/%.obibitem,$(SOURCES))
OBJECTS_SOURCES = $(patsubst %.tex,$(BUILD_DIR)/%.osrc,$(SOURCES))
OBJECTS_FIGURES = $(patsubst %.tex,$(BUILD_DIR)/%.ofig,$(SOURCES))
OBJECTS_TOC = $(patsubst %.tex,$(BUILD_DIR)/%.otoc,$(SOURCES))
DEP_FILE = $(BUILD_DIR)/$(patsubst %.tex,%.dependency_list,$(MAIN_SRC))
TOC_DEP = $(BUILD_DIR)/toc.d
TOC_DEP_NEW = $(BUILD_DIR)/toc.d.new

FIGS_SUFFIXES = %.pdf %.eps %.png %.jpg %.jpeg %.gif %.dvi %.bmp %.svg %.ps
SCRIPT_SUFFIXES = $(FIGS_SUFFIXES) %.tex

ifdef COLOR
COLOR_R = 
COLOR_G = 
COLOR_Y = 
COLOR_E = 
endif

ifdef QUIET
STDERROUT = 2> /dev/null > /dev/null
endif

ifneq ($(MAKECMDGOALS),clean)
	-include $(DEP_FILE)
endif

.DEFAULT_GOAL := all

all: $(MAIN_TARGET)


$(MAIN_TARGET): $(TOC_DEP_NEW) $(BIBITEM_REDO_FILE) $(PACKAGES)
$(MAIN_TARGET):
	$(_creating)
	$(tex-command)

view: $(MAIN_TARGET)
	$(VIEWER) $<


$(BIBITEM_FILE): $(shell cat /dev/null $(OBJECTS_BIBFILES))
.NOTPARALLEL:
$(BIBITEM_FILE): $(OBJECTS_BIBITEM)
	$(_creating)
	if test -z $^; then \
		touch $@; \
	else \
		{ for i in $^; do set -x; test -e $$i && cp $$i $(BUILD_DIR)/$$i; done }; \
		( cd $(BUILD_DIR) ; $(BIBTEX) $(patsubst %.tex,%,$(MAIN_SRC));); \
	fi

$(BIBITEM_REDO_FILE): $(BIBITEM_FILE)
	$(_creating)
	$(tex-command)
	$(tex-command)
	touch $@

REV ?=
ifeq ($(MAKECMDGOALS),diff)
ifeq ($(REV),)
$(error set the value of REV to a valid revision name)
endif
endif
DIFF_TARGET = $(MAIN_NAME)-diff$(REV).pdf
DIFF_SOURCE = $(MAIN_NAME)-diff$(REV).tex
diff: $(DIFF_TARGET)
$(DIFF_TARGET): $(DIFF_SOURCE)
	$(_creating)
	tectonic $<
$(DIFF_SOURCE): $(MAIN_SRC)
	$(_creating)
	latexdiff-vc --git -r $(REV) $<

dist: $(shell cat /dev/null \
								$(OBJECTS_SOURCES) \
									$(OBJECTS_FIGURES) \
									$(OBJECTS_BIBFILES) $(PACKAGES) )
	$(_creating)
	@mkdir -p $@
	@$(MAKE) \
		dist/$(MAIN_SRC) \
		$(patsubst %,dist/%,$^) \

dist/%: %
	$(_creating)
	@mkdir -p $(dir $@)
	@cp $< $@

$(TOC_DEP_NEW): $(OBJECTS_TOC)
	$(_creating)
	@cat $^ > $@
	@if ! diff $(TOC_DEP) $(TOC_DEP_NEW) > /dev/null 2>&1; then $(tex-command); fi
	@cp $(TOC_DEP_NEW) $(TOC_DEP)

$(BUILD_DIR)/%.o: %.tex
	$(_creating)
	@mkdir -p $(dir $@)
	@python3 -c "$$python_get_all_dependencies" $? > $@

%.osrc: %.o
	$(_creating)
	@echo > $@
	@awk -F'^input +' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@
	@awk -F'^include +' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@

%.obib: %.o
	$(_creating)
	@echo > $@
	@awk -F'^bibliography +' '{print $$2}' $< | sed "/^\s*$$/d" | sed "s/,/ /g" |\
	 	sort -u >> $@

%.obibitem: %.o
	$(_creating)
	@echo > $@
	@awk -F'cite +' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@

%.ofig: %.o
	$(_creating)
	@echo > $@
	@awk -F'^includegraphics +' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@
	@awk -F'^includepdf +' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@

%.otoc: %.o
	$(_creating)
	@echo > $@
	@awk -F'^part ' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@
	@awk -F'^section ' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@
	@awk -F'^chapter ' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@
	@awk -F'^subsection ' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@
	@awk -F'^subsubsection ' '{print $$2}' $< | sed "/^\s*$$/d" | sort -u >> $@

$(DEP_FILE): $(OBJECTS_SOURCES) $(OBJECTS_FIGURES) $(OBJECTS_BIBFILES)
	$(_creating)
	@echo '$(MAIN_TARGET): \' > $@
	@cat $^ | sed "/^\s*$$/d" | sed 's_$$_ \\_' >> $@
	@echo '' >> $@

$(BUILD_DIR):
	mkdir -p $@

$(SCRIPT_SUFFIXES): %.mac
	$(_creating)
	@cd $(dir $<) && $(MAXIMA) $(notdir $<)
$(SCRIPT_SUFFIXES): %.py
	$(_creating)
	@cd $(dir $<) && $(PYTHON) $(notdir $<)
$(SCRIPT_SUFFIXES): %.sh
	$(_creating)
	@cd $(dir $<) && $(SHELL) $(notdir $<)
$(FIGS_SUFFIXES): %.asy
	$(_creating)
	@cd $(dir $<) && $(ASYMPTOTE) -f $$(echo $(suffix $@) | tr -d "\.") $(notdir $< )
$(FIGS_SUFFIXES): %.gnuplot
	$(_creating)
	@cd $(dir $<) && $(GNUPLOT) $(notdir $< )
$(FIGS_SUFFIXES): %.tex
	$(_creating)
	@cd $(dir $<) && $(TEXENGINE) $(notdir $< )

PURGE_SUFFIXES = .aux .bbl .blg .fdb_latexmk .fls .log out \
                 .ilg .toc .nav .snm .run.xml .glo .ist -blx.bib
clean:
	@rm -v $(wildcard \
		$(DEP_FILE) $(OBJECTS) $(OBJECTS_SOURCES) \
		$(OBJECTS_BIBFILES) \
		$(OBJECTS_FIGURES) $(TOC_DEP) $(TOC_DEP_NEW) $(MAIN_TARGET) \
		$(OBJECTS_TOC) $(patsubst %,$(BUILD_DIR)/*%,$(PURGE_SUFFIXES)) \
	) 2> /dev/null

config.mk:
	@echo "Creating a default $@"
	$(file >$@,$(_default_config))

define _default_config
MAIN_SRC  = main.tex
BUILD_DIR = build
# TeX files
SOURCES   = $$(MAIN_SRC) $$(wildcard *.tex)
PACKAGES  = $$(wildcard *.sty)

VIEW      = 1
VIEWER    = xdg-open
BIBTEX    = bibtex
PYTHON    = python3
TEXENGINE = pdflatex
# use color for output
COLOR = 1
endef

define python_get_all_dependencies
import re
import sys


keywords = [ "includegraphics"
           , "includepdf"
           , "cite"
           , "citep"
           , "ref"
           , "refeq"
           , "label"
           , "input"
           , "include"
           , "bibliography"
           , "part"
           , "chapter"
           , "section"
           , "subsection"
           , "subsubsection"
           ]
command_regex = r"\\(%s)%s%s" % ( "|".join(keywords)
                                , "(\[[^{}]+\])?"
                                , "{([^{}]+)}"
                                )
re_command_regex = re.compile(command_regex)


def remove_comments(text):
    return re.sub(r"%.*[\n]", "", text)


def get_parsed_keywords(text):
    parsed = re_command_regex.findall(remove_comments(text))
    return sum([[(name, value)
                    for value in re.sub(r"\s", "", values).split(",")]
                        for name, _, values in parsed], [])


if __name__ == "__main__":

    input_file = sys.argv[1]

    with open(input_file) as f:
        text = f.read()
        for s in get_parsed_keywords(text):
            print("{0} {1}".format(s[0], s[1]))
endef
export python_get_all_dependencies

define _creating
$(info $(COLOR_G)$@$(COLOR_E) from $(COLOR_Y)$<$(COLOR_E))
endef

define tex-command
$(TEXENGINE) -output-directory=$(BUILD_DIR) $(MAIN_SRC) $(STDERROUT)
endef

.PHONY: clean diff