## preamble ##
.PHONY : all install clean tds zip ctan pdf dtx cls sty anc bib recover gloss ind
.DEFAULT : all
## programs ##
# DOC is the class/package XML document, always the most recently-edited
# Note: as of 2017-03-14 this does NOT need to be the same name as the dir,
# nor as the name of the principal class/package created
DOC   := $(shell ls -1t *.xml | grep -v '\.run\.' | grep -vE '^(ucc|lppl|autopack|languages|prepost|readme|template|test|.*\.frags|.*\.bak).xml$$' | head -1 | cut -d . -s -f 1)
HERE  := $(shell pwd)
JAVA  := $(shell which java)
SAX   := $(shell locate saxon9he.jar | tail -1)
LXP   := $(shell which lxprintf)
LMK   := $(shell which latexmk)
## classpack ##
# ClassPack-specific locations
TMF   := $(shell kpsewhich -expand-var '$$TEXMFHOME')
DEV   := $(TMF)/dev
CPX   := $(DEV)/db2dtx.xsl
CPB   := $(DEV)/db2bibtex.xsl
CPT   := $(DEV)/db2md.xsl
CPD   := $(DEV)/decommentbbl.awk
CPP   := $(DEV)/prepost.xml
IST   := $(DEV)/classpack.ist
RME   := $(DEV)/readme.xml
LPPL  := $(DEV)/lppl.xml
## metadata ##
# Metadata extracted from the document
TYPE  := $(shell $(LXP) -e book "%s" @userlevel $(DOC).xml)
LPROC := $(shell $(LXP) -e 'part[@xml:id="doc"]' "%s" @conformance $(DOC).xml)
BPROC := $(shell $(LXP) -e bibliography "%s" @condition $(DOC).xml)
BIBREF:= $(shell $(LXP) -e biblioref "%s\n" @linkend $(DOC).xml | wc -l)
RFC   := $(shell $(LXP) -e book "%s" 'count(//exceptionname)' $(DOC).xml)
RFCGOT:= $(shell grep rfc2119 $(DOC).bib 2>/dev/null | wc -l)
VER   := $(shell $(LXP) -e book "%s.%s" @version @revision $(DOC).xml)
#APROC := $(shell $(LXP) -e 'appendix[@arch]' "%s" 'normalize-space(@arch)' $(DOC).xml)
ADOX  := $(shell $(LXP) -e 'appendix[@arch]' "%s\n" @xlink:href $(DOC).xml)
#ADOC  := $(shell $(LXP) -e 'appendix[@arch]' "%s" 'substring-before(@xlink:href,".")' $(DOC).xml)
#AEXT  := $(shell $(LXP) -e 'appendix[@arch]' "%s" 'substring-after(@xlink:href,".")' $(DOC).xml)
DOX   := $(shell $(LXP) -e appendix "%s " @xlink:href $(DOC).xml)
LOC   := $(shell $(LXP) -e book "%s" @xml:base $(DOC).xml)
## shortcuts ##
# Target shortcuts
all   : pdf ctan tds 
#anc   : $(ADOC).pdf
cls   : $(DOC).$(TYPE)
ctan  : $(DOC)-$(VER).zip
dtx   : $(DOC).dtx
pdf   : $(DOC).pdf
sty   : $(DOC).$(TYPE)
zip   : $(DOC)-$(VER).zip
tds   : $(DOC)-$(VER).tds.zip
## dtx ##
# Transform the document into a .dtx file
$(DOC).dtx $(DOC).ins : $(DOC).xml $(CPX) $(CPB) $(CPT) $(CPD) $(CPP) $(RME)
	$(JAVA) -Djdk.xml.entityExpansionLimit=0 \
		-jar $(SAX) \
		-xi:on \
		-o:$@ \
		-s:$< \
		-dtd:on \
		-xsl:$(CPX) \
		cpdir=$(DEV) \
		appdir=$(HERE)
	$(shell echo $(RFC) exceptionnames, $(RFCGOT) entries in .bib >mflog)
ifeq ($(RFC),0)
	touch $(DOC).bib
endif
# removed 2018-02-04 and added to end of db2bibtex.xsl
#ifeq ($(RFCGOT),0)
#	cat $(DEV)/rfc2119.bib >>$(DOC).bib
#endif
# Extract all the files from the .dtx
$(DOC).$(TYPE) : $(DOC).dtx $(DOC).ins
	yes|pdflatex $(DOC).ins
## pdf ##
# Create the documentation
$(DOC).pdf : $(DOC).dtx $(DOC).$(TYPE) $(DOC).bib $(CPX) $(CPB) $(CPT) $(CPD) $(CPP) 
# Don't use latexmk for the moment as it fails to do index and glossary
#	$(LMK) -xelatex -bibtex $<
# if XeLaTeX is required, do this block
ifeq ($(LPROC),xelatex)
	$(LMK) -xelatex -bibtex $<
#	xelatex $<
#	biber $(DOC)
	makeindex -s gglo.ist -o $(DOC).gls $(DOC).glo
#	xelatex $<
	makeindex -s $(IST) -o $(DOC).ind $(DOC).idx
#	xelatex $<
	$(LMK) -xelatex -bibtex $<
# or if (pdflatex but no bibtex)
else ifeq ($(BIBREF),0)
	$(LMK) -pdf $<
# or if (pdflatex and biblatex)
else ifeq ($(BPROC),biber)
	pdflatex $<
	biber $(DOC)
	makeindex -s gglo.ist -o $(DOC).gls $(DOC).glo
	pdflatex $<
	makeindex -s $(IST) -o $(DOC).ind $(DOC).idx
	pdflatex $<
# else (pdflatex and bibtex)
else
	pdflatex $<
	bibtex $(DOC)
	awk -f $(CPD) $(DOC).bbl | iconv -f ISO-8859-1 -t UTF-8 - >$(DOC).bdc
	mv -f $(DOC).bdc $(DOC).bbl
	makeindex -s gglo.ist -o $(DOC).gls $(DOC).glo
	pdflatex $<
	makeindex -s $(IST) -o $(DOC).ind $(DOC).idx
	pdflatex $<
endif
# TODO: add processing demo/test file[s]
## zip ##
# Package as TDS zip file.
# Clear out the doc|source|tex|generic directories
# then populate them from the MANIFEST
# TODO: stop packaging generated files
$(DOC)-$(VER).tds.zip : README.md MANIFEST $(DOC).pdf \
          $(DOC).dtx $(DOC).ins $(DOC).$(TYPE) Makefile
	/bin/rm -rf doc/* source/* tex/* dev/$(DOC) 2>>$(DOC).err
	mkdir -p doc/latex/$(LOC)
	mkdir -p source/latex/$(LOC)
	mkdir -p tex/latex/$(LOC)
	mkdir -p tex/generic/$(LOC)
	cp -f README.md MANIFEST $(DOC).pdf doc/latex/$(LOC)/
	cp -f `cat MANIFEST | grep -E '\.(dtd|awk|sh|xsl|xml|dtx|tex|bib|csv|ins)$$'` source/latex/$(LOC) 2>>zip.log
	if [ `ls -1 *.cls 2>/dev/null|wc -l` -gt 0 ]; then cp -f *.cls tex/latex/$(LOC); fi
	if [ `ls -1 *.sty 2>/dev/null|wc -l` -gt 0 ]; then cp -f *.sty tex/latex/$(LOC); fi
	if [ `ls -1 *.cnf 2>/dev/null|wc -l` -gt 0 ]; then cp -f *.sty tex/latex/$(LOC); fi
	if [ `cat MANIFEST | grep -E '\.(jpg|png|pdf)$$' | grep -v $(DOC).pdf|wc -l` -gt 0 ]; then cp -f `cat MANIFEST | grep -E '\.(jpg|png|pdf)$$' | grep -v $(DOC).pdf` tex/generic/$(LOC) 2>>zip.log; fi
ifeq ($(ADOC),)
else
	cp -f $(ADOX) tex/latex/$(LOC)/
endif
ifeq ($(DOC),classpack)
	mkdir -p dev/$(DOC)
	for f in awk sh xsl xml dtd; do if [ -f source/latex/$(DOC)/*.$f ]; then mv -f source/latex/$(DOC)/*.$f dev/$(DOC); fi; done
endif
	/bin/rm -f $@
	zip -r -FS -T \
		--exclude=*.svn* --exclude=*.DS_Store* $@ \
		doc/latex/$(LOC) source/latex/$(LOC) tex/latex/$(LOC) tex/generic/* dev/$(DOC) 2>>$(LOC).err
## CTAN ##
# Package as zip file for CTAN
$(DOC)-$(VER).zip : README.md MANIFEST $(DOC).pdf $(DOC).dtx $(DOC).ins Makefile
	mkdir -p $(LOC)
	/bin/rm -rf $(LOC)/*
	$(LXP) -e '/book/info/revhistory/revision[not(../revision/@version > @version)]' \
		"Date of most recent change is %s\n" date/@YYYY-MM-DD $(DOC).xml >VERSION
#	unzip -v $@|grep -E '[12][0-9]{3}-[01][0-9]-[012][0-9] [0-2][0-9]:[0-5][0-9]'|awk '{print "Date of most-recently-changed file is " $$5 "T" $$6 ":00"}'|sort|tail -1>VERSION
	cp -f `cat MANIFEST | grep -Ev '(\.dtd|\.xsl|\.xml|\.sh|\.awk|Makefile|MANIFEST)$$'` $(LOC)/
	rm -f `lxprintf -e 'part[@xml:id="files"]/chapter' "$(LOC)/%s\n" @xlink:href $(DOC).xml`
	cp -f $(DOC).dtx $(DOC).ins $(LOC)/ 2>>zip.log
	/bin/rm -f $@
	zip -r -FS -T \
		--exclude=*.svn* --exclude=*.DS_Store* $@ \
		$(LOC)
	cp VERSION $(LOC)/VERSION
	ls -1 $(LOC) >$(LOC)/MANIFEST
	zip $@ $(LOC)/VERSION $(LOC)/MANIFEST

## install ##
# Install locally
install : $(DOC)-$(VER).tds.zip $(DOC)-$(VER).zip
	unzip -o -d $(TMF) $(DOC)-$(VER).tds.zip
#	svn add $(TMF)/doc/latex/$(LOC)
#	svn add $(TMF)/source/latex/$(LOC)
#	svn add $(TMF)/tex/latex/$(LOC)
#	svn add $(TMF)/tex/generic/
#	svn ci -m $(DOC)-install

## recover ##
# Recover from fatal LaTeX or Bib error after fixing
recover : $(DOC).dtx
	$(LPROC) --interaction=nonstopmode $(DOC).dtx
	$(BPROC) $(DOC)
gloss : $(DOC).dtx 
	makeindex -s gglo.ist -o $(DOC).gls $(DOC).glo
ind : $(DOC).dtx
	makeindex -s $(IST) -o $(DOC).ind $(DOC).idx
bib : $(DOC).dtx $(DOC).bib
	$(BPROC) $(DOC)
## clean ##
# Remove all trace of processing (used for a clean start)
clean :
	/bin/rm -f $(DOC).dtx $(DOC).ins $(DOC).$(TYPE) $(DOC).fls \
		$(DOC).aux $(DOC).log $(DOC).toc $(DOC).tex $(DOC).cnf \
		$(DOC).bib $(DOC).bbl $(DOC).blg $(DOC).bdc $(DOC).bcf \
		$(DOC).glo $(DOC).gls \
		$(DOC).idx $(DOC).ilg $(DOC).ind $(DOC).ins \
		$(DOC).dvi $(DOC).pdf $(DOC).log $(DOC).err \
		README.md MANIFEST VERSION \
		$(DOC)-$(VER).zip $(DOC)-$(VER).tds.zip $(DOC).cfg
	/bin/rm -rf $(LOC) doc source tex
## ancillary ##
# not yet
## eof ##
## cd ~/texmf/dev; for f in db2dtx db2bibtex db2md figtab2latex; do ./chunk -p cpdoc $f.xsl; mv $f*.frag classpack; done