#Must already have a version of pgfSweave installed to compile this.
	#This is a workaround for using pgfSweave to compile the vignette
	#in the CRAN version without requiring pgfSweave already.
	#
	#The idea is that before submitting, the developer compiles the source
	#of the vignette with the version of pgfSweave they have been working on 
	#by running this make file.  Then copy the tex file output to inst/doc
	#as an Rnw file (with no code chunks) so that it registers as an official 
	#vignette.  
	#
	#Requires a little finagling to change the path to the example files and 
	#get rid of the \pgfrealjobname line

# Internal values

DOC_PATH=../../doc/
EXAMPLE_PATH=../../example/
EXEC_PATH=../../../exec/
CHANGELOG_PATH=../../../

RM_PATH={*,$(DOC_PATH)/*}
RM_SUFFIX={sh,map,aux,tex,log,pdf,dvi,in,fdb_latexmk}
BUILD_RM_SUFFIX={log,aux,dvi,sh,map,fdb_latexmk}

#
VIGNETTE_SOURCE_PDF=pgfSweave-vignette-source.pdf

VIGNETTE_DUMMY_PDF=$(DOC_PATH)/pgfSweave.pdf
VIGNETTE_DUMMY_RNW=$(DOC_PATH)/pgfSweave.Rnw

EXAMPLE_TEX=$(EXAMPLE_PATH)/pgfSweave-example.tex
EXAMPLE_PDF=$(EXAMPLE_PATH)/pgfSweave-example.pdf

all: $(VIGNETTE_DUMMY_PDF) 

$(VIGNETTE_DUMMY_PDF): $(VIGNETTE_DUMMY_RNW)
	(cd $(DOC_PATH)/ ; R CMD Sweave pgfSweave.Rnw; pdflatex pgfSweave.tex)

$(VIGNETTE_DUMMY_RNW): $(EXAMPLE_PDF)  $(VIGNETTE_SOURCE_PDF)
	# Copy Sweave.sty
	cp Sweave.sty $(DOC_PATH)/
	# Copy all the figures
	cp figs/*.pdf $(DOC_PATH)/figs/
	# Copy all the example file to include but dont use .Rnw so they are not 
	# recognised as another vignette 
	cp -f $(EXAMPLE_PATH)/pgfSweave-example.Rnw \
		  $(DOC_PATH)/pgfSweave-example-Rnw.in
	cp -f $(EXAMPLE_PATH)/pgfSweave-example.tex \
		  $(DOC_PATH)/pgfSweave-example-tex.in
	cp -f $(EXAMPLE_PATH)/pgfSweave-example.pdf \
		  $(DOC_PATH)/pgfSweave-example.pdf
	# Remove the pgfrealjobname command and the path to the example files since
	# the new file will be in the same directory 
	cat pgfSweave-vignette-source.tex \
		| grep -v "\\pgfrealjobname{pgfSweave-vignette-source}" \
		| sed 's/\.\.\/\.\.\/example\///g' > tmp
	# Change the names of the input files
	cat tmp | sed 's/pgfSweave-example\.Rnw/pgfSweave-example-Rnw.in/g' \
			| sed 's/pgfSweave-example\.tex/pgfSweave-example-tex\.in/g' \
			> ../../doc/pgfSweave.Rnw

$(VIGNETTE_SOURCE_PDF):
	echo `pwd`
	$(EXEC_PATH)/pgfsweave-script.R pgfSweave-vignette-source.Rnw

$(EXAMPLE_PDF):
	(cd $(EXAMPLE_PATH)/ ; make)

clean:
	rm -rf cache figs/* Rplots.* $(RM_PATH).$(RM_SUFFIX) \
		$(DOC_PATH)/Sweave.sty $(DOC_PATH)/*.Rnw $(DOC_PATH)/figs/* tmp \
		$(CHANGELOG)
	(cd $(EXAMPLE_PATH) ; make clean)

cleanforbuild:
	rm -rf cache figs/* Rplots.* $(RM_PATH).$(BUILD_RM_SUFFIX) \
		./pgfSweave-vignette-source.tex $(DOC_PATH)/pgfSweave-vignette.tex tmp
	(cd $(EXAMPLE_PATH) ; make cleanforbuild)