# *** DO NOT EDIT THIS FILE EXCEPT IN THE PROJECT HOME DIRECTORY ***

# Relative path to the project home directory.
# For makefile in every directory other than $(PROJECT_HOME) this is
# automatically set by "make makefiles"
PROJECT_HOME = ../.

SHELL = /bin/bash
CD = cd -P

EXTRA_TEX_PREAMBLE =

-include $(PROJECT_HOME)/makefile.project

# The path to this project subdir, relative to $(PROJECT_HOME).
# For makefile in every directory other than $(PROJECT_HOME)
# this is automatically set by "make makefiles".
PROJECT_PATH = ./HW6

EXCLUDE_SUBDIRS += . .. CVS .svn $(wildcard gen-*) src

PROJECT_SUBDIRS = $(filter-out $(EXCLUDE_SUBDIRS),$(notdir $(shell find . -maxdepth 1 -type d -not -name ".*.tmp")))

SUBDIR_MAKEFILES = $(addsuffix /makefile,$(PROJECT_SUBDIRS))

MD_MACROS = $(PROJECT_HOME)/include/md-macros.m4

MD += $(wildcard *.md)
M4D += $(wildcard *.m4d)
GEN_MD = $(M4D:.m4d=.md)
MD_HTML += $(M4D:.m4d=.html)
MD_HTML += $(MD:.md=.html)
MD_HTML := $(sort $(MD_HTML))
#MD_PDF += $(MD:.md=.pdf) #don't gen pdf by default

HTMLOPTS += --standalone --smart --gladtex
PDPDFOPTS += --smart

SUBDIR_DEPS += $(MD_HTML) $(MD_PDF)

PUBLISH_RSYNC_FILTERS = \
	--filter="+ gen-images*/" \
	--filter="- gen-*" \
	--filter="- *private*" \
	--filter='- src/' \
	--filter='- scripts/' \
	--filter='- .svn/' \
	--filter='- E*/' \
	--filter='+ *.html' \
	--filter='+ *.css' \
	--filter='+ *.png' \
	--filter='+ *.gif' \
	--filter='+ *.jpg' \
	--filter='+ *.JPG' \
	--filter='+ *.avi' \
	--filter='+ *.pdf' \
	--filter='+ *.java' \
	--filter='+ *.c' \
	--filter='+ *.h' \
	--filter='+ *.cpp' \
	--filter='+ *.hpp' \
	--filter='+ makefile' \
	--filter='+ *.exe' \
	--filter='+ bin/**' \
	--filter='+ *.tri' \
	--filter='+ *.stl' \
	--filter='+ *.dae' \
	--filter='+ *.ply' \
	--filter='+ *.rts' \
	--filter='+ .ht*' \
	--filter='+ */' \
	--filter='- *'

# function to make a target recursively
# first argument is target to make
# second argument is "true" to continue on fail, "false" to stop on fail
recursively-make = $(foreach DIR,$(PROJECT_SUBDIRS),[ ! -d $(DIR) ] || pushd $(DIR) > /dev/null && ( $(MAKE) $(1) || $(2) ) && popd > /dev/null && ) true

# function to make something from $(PROJECT_HOME)
make-from-project-home = \
	@echo making $(1) from $(PROJECT_HOME); \
	$(CD) $(PROJECT_HOME) && $(MAKE) $(1)

# recursively make something
%.recursive:
#	@echo recursively making $(basename $@)
	$(MAKE) $(basename $@)
	$(call recursively-make,$@,true)

-include makefile.dir

default: subdir

.PHONY: FORCE
FORCE:

gen-header.html: FORCE
	echo "<link rel=\"icon\" type=\"image/png\" href=\"$(PROJECT_HOME)/icon.png\" />" > $@

gen-footer.html: FORCE
	echo "<p id=\"footer\" align=\"center\">this page subject to change &nbsp;|&nbsp; last updated `date` &nbsp;|&nbsp; <a href=\"$(PROJECT_HOME)/index.html\">course homepage</a></p>" > $@

gen-header.tex: FORCE
	echo "\usepackage{amsmath} \usepackage{amssymb}" > $@ 
	echo $(EXTRA_TEX_PREAMBLE)  > $@

%.md: %.m4d makefile $(MD_MACROS)
	m4 -P "-I$(PROJECT_HOME)/include" $(MD_MACROS) $< > $@

%.htex: %.md makefile gen-header.html gen-footer.html $(EXTRA_HTML_DEPS)
	pandoc $(HTMLOPTS) -H gen-header.html -A gen-footer.html -o $@ $<

%.html: %.htex
	if [[ ! -d gen-images-$(basename $@) ]]; then mkdir gen-images-$(basename $@); fi
	gladtex -p $(EXTRA_TEX_PREAMBLE) -d gen-images-$(basename $@) $<
	if [[ `ls gen-images-$(basename $@)/*.png 2> /dev/null | wc -l` == 0 ]]; then $(RM) -rf gen-images-$(basename $@); fi

%.pdf: %.md $(CSS) makefile gen-header.tex
	markdown2pdf $(PDPDFOPTS) -H gen-header.tex -o $@ $<

%.pdf: %.svg
	inkscape -z -T -A ./$@ $<

%.pdf: %.png
	convert $< -density 300 $@

%.pdf: %.jpg
	convert $< -density 300 $@

%.pdf: %.tex FORCE
	pdflatex $<

.PHONY: clean
clean: $(EXTRA_CLEAN_DEPS)
	rm -f $(GEN_MD) $(MD_HTML) $(MD_PDF) *~ gen-*.html gen-*.tex *.htex
	rm -rf gen-images-*

# whitespace regex
WS = [ \t]*

$(SUBDIR_MAKEFILES): makefile
	@if [ -e $@ ] && [ `grep -c "DO NOT EDIT" $@ 2> /dev/null ` -eq 0 ]; \
	then echo "$@ exists but is not generated, skipping"; \
	else echo "(re)making $@" && \
	$(RM) $@ && \
	sed \
	-e 's|^$(WS)PROJECT_HOME$(WS)=$(WS)\(.*\)$(WS)|PROJECT_HOME = ../\1|' \
	-e 's/^$(WS)PROJECT_PATH$(WS)=$(WS)\(.*\)$(WS)/PROJECT_PATH = \1\/$(subst /,,$(dir $@))/' \
  -e 's/^$(WS)if-root-package$(WS)=.*/if-root-package = $$(2)/' \
  makefile > $@; fi

.PHONY: makefiles
makefiles: $(SUBDIR_MAKEFILES)
	@echo making makefiles
	@$(call recursively-make,makefiles,true)

.PHONY: subdir
subdir: $(EXTRA_SUBDIR_DEPS) $(SUBDIR_DEPS)

.PHONY: project-announce
project-announce:
	@echo making project

.PHONY: project
project: project-announce
	$(call make-from-project-home,subdir.recursive)

.PHONY: project-clean
project-clean:
	$(call make-from-project-home,clean.recursive)

.PHONY: publish
publish:
	$(call make-from-project-home,publish.impl)

.PHONY: publish.impl
publish.impl:
	rsync -Crav --progress --chmod='go+r' --copy-links $(PUBLISH_RSYNC_FILTERS) * $(PUBLISH_DEST)


.PHONY: show-settings
show-settings:
	@echo "PROJECT_HOME=$(PROJECT_HOME)"
	@echo "PROJECT_PATH=$(PROJECT_PATH)"
	@echo "PROJECT_SUBDIRS=$(PROJECT_SUBDIRS)"
	@echo "SUBDIR_MAKEFILES=$(SUBDIR_MAKEFILES)"
	@echo "EXTRA_HTML_DEPS=$(EXTRA_HTML_DEPS)"
	@echo "MD=$(MD)"
	@echo "M4D=$(M4D)"
	@echo "GEN_MD=$(GEN_MD)"
	@echo "MD_HTML=$(MD_HTML)"
	@echo "MD_PDF=$(MD_PDF)"