PKGNAME := $(shell sed -n "s/Package: *\([^ ]*\)/\1/p" DESCRIPTION)
PKGVERS := $(shell sed -n "s/Version: *\([^ ]*\)/\1/p" DESCRIPTION)
PKGSRC  := $(shell basename $(PWD))
TGZ     := $(PKGNAME)_$(PKGVERS).tar.gz

# Specify the directory holding R binaries. To use an alternate R build (say a
# pre-prelease version) use `make RBIN=/path/to/other/R/` or `export RBIN=...`
# If no alternate bin folder is specified, the default is to use the folder
# containing the first instance of R on the PATH.
RBIN ?= $(shell dirname "`which R`")

README.html: README.md
	"$(RBIN)/Rscript" -e "rmarkdown::render('README.md', output_format = 'html_document', output_options = list(mathjax = NULL))"

build:
	"$(RBIN)/R" CMD build .

install: build
	"$(RBIN)/R" CMD INSTALL $(TGZ)

check: build
	"$(RBIN)/R" CMD check --as-cran $(TGZ) 2>&1 | tee check.log

quickcheck: build
	"$(RBIN)/R" CMD check $(TGZ) 2>&1 | tee check.log

pd:
	"$(RBIN)/Rscript" -e "pkgdown::build_site()"
	git add -A
	git commit -m 'Static documentation rebuilt by pkgdown::build_site()' -e

winbuilder: build
	@echo "Uploading to R-release on win-builder"
	curl -T $(TGZ) ftp://anonymous@win-builder.r-project.org/R-release/
	@echo "Uploading to R-devel on win-builder"
	curl -T $(TGZ) ftp://anonymous@win-builder.r-project.org/R-devel/

drat: build
	"$(RBIN)/Rscript" -e "drat::insertPackage('$(TGZ)', commit = TRUE)"

$(WINBIN): build
	@echo "Building windows binary package..."
	"$(RBIN)/R" CMD INSTALL $(TGZ) --build
	@echo "DONE."

winbin: $(WINBIN)

dratwin: winbin
	"$(RBIN)/Rscript" -e "drat::insertPackage('$(WINBIN)', 'e:/git/drat/', commit = TRUE)"