Makefile

SHELL:=/bin/bash

ifneq (, $(shell which gcc-8))
CC := gcc-8
endif
ifneq (, $(shell which g++-8))
CXX := g++-8
endif

LDLIBS += -lcurl -lm -leccodes -lnetcdf -lwebsockets -lcbor -lpthread
CPPFLAGS += -O3 -Isrc -fms-extensions
# LDLIBS += -lmongoc-1.0 -lbson-1.0
# CPPFLAGS += -I/usr/include/libmongoc-1.0/ -I/usr/include/libbson-1.0/
CPPFLAGS += -MMD -MP -MF $@.d
CFLAGS 	+= -std=gnu11 -fplan9-extensions
CXXFLAGS += -std=c++14

SRC = $(wildcard src/*.c* src/*/*.c*)
OBJ = $(patsubst %,build/%.o,$(SRC))
BIN = $(patsubst apps/%,bin/%,$(basename $(wildcard apps/*.c*)))

all: $(BIN)

bin/%: apps/%.* $(OBJ)
	mkdir -p $(@D)
	$(CXX) $(CPPFLAGS) $(CXXFLAGS) $^ $(LDLIBS) -o $@

build/%.cpp.o: %.cpp
	mkdir -p $(@D)
	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@

build/%.c.o: %.c
	mkdir -p $(@D)
	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@

.PRECIOUS: $(OBJ)

-include $(OBJ:%.o=%.o.d)
.PHONY: %.d


.PHONY: clean
clean:
	rm -rf build/ bin/

DATA_DIR ?= ./data/

MONTHS := $(shell d="1979-01-02"; until [[ $$d > "2011-04-01" ]]; do echo "$$(date +%Y%m -d $$d)"; d=$$(date -I -d "$$d + 1 month"); done)
FIELDS := ocnu5 ocnv5 wnd10m.l

.PHONY: grb2 nc
grb2 nc: %: $(foreach month,$(MONTHS),$(foreach field,$(FIELDS),$(DATA_DIR)/$(field).gdas.$(month).%))

%.grb2:
	-mkdir -p $(@D); \
	YYYYMM=$$(echo "$@" | rev | cut -d. -f2 | rev); \
	cd $(@D) && curl -O ftp://nomads.ncdc.noaa.gov/CFSR/HP_time_series/$$YYYYMM/$(notdir $@)

%.nc:
	$(MAKE) $*.grb2
	grib_to_netcdf -T -I type -k3 -o $@ $*.grb2
	rm $*.grb2

.PHONY: npm
npm:
	cd www; npm i

.PHONY: deps
deps:
	sudo apt-get install gcc-8 g++-8 libeccodes-dev libeccodes-tools libnetcdf-dev libcbor-dev cmake libssl1.0-dev nodejs-dev npm
	$(MAKE) libwebsockets
	$(MAKE) nlohmann-json
	$(MAKE) npm

.PHONY: install
install: all
	sudo cp bin/sailing /usr/bin/

.PHONY: libwebsockets
libwebsockets:
	mkdir -p build; cd build; \
	git clone https://github.com/warmcat/libwebsockets; \
	cd libwebsockets; \
	git checkout v3.1.0; \
	mkdir -p build; cd build; \
	cmake ..; \
	make -j8; \
	sudo make install; \
	sudo ldconfig

.PHONY: nlohmann-json
nlohmann-json:
	mkdir -p build; cd build; \
	git clone https://github.com/nlohmann/json; \
	cd json; \
	git checkout v3.6.1; \
	mkdir -p build; cd build; \
	cmake ..; \
	make -j8; \
	sudo make install; \
	sudo ldconfig