Makefile

SDK ?= macosx
SWIFTC = xcrun --sdk $(SDK) swiftc
SWIFTFLAGS ?=
DESTDIR ?= /opt/coreutils-swift

PWD = $(shell pwd)
BUILD_ROOT ?= build
BUILD_LIB_ROOT := $(BUILD_ROOT)/lib
BUILD_BIN_ROOT := $(BUILD_ROOT)/bin

BUILD_FOLDERS := $(BUILD_ROOT) $(BUILD_BIN_ROOT) $(BUILD_LIB_ROOT)

LIBS = CommandLine Rainbow

LIB_PRODUCTS := $(LIBS:%=$(BUILD_LIB_ROOT)/lib%.dylib) $(LIBS:%=$(BUILD_LIB_ROOT)/%.swiftmodule) $(LIBS:%=$(BUILD_LIB_ROOT)/%.swiftdoc)

BINARIES = ls whoami uname env sleep wc echo yes true false pwd mkdir date domainname sync cat hostname rmdir uuidgen

BIN_PRODUCTS := $(BINARIES:%=$(BUILD_BIN_ROOT)/%)

all: $(LIB_PRODUCTS) $(BIN_PRODUCTS)

$(BUILD_LIB_ROOT)/%.swiftmodule: $(BUILD_LIB_ROOT)/lib%.dylib

$(BUILD_LIB_ROOT)/%.swiftdoc: $(BUILD_LIB_ROOT)/lib%.dylib

$(BUILD_LIB_ROOT)/lib%.dylib: lib/%/*.swift | $(BUILD_FOLDERS)
	$(SWIFTC) \
	-emit-library \
	-o $(BUILD_LIB_ROOT)/lib$*.dylib \
	-Xlinker -install_name \
	-Xlinker @rpath/../lib/lib$*.dylib \
	-emit-module \
	-emit-module-path $(BUILD_LIB_ROOT)/$*.swiftmodule \
	-module-name $* \
	-module-link-name $* \
	$(SWIFTFLAGS) \
	lib/$*/*.swift

$(BUILD_BIN_ROOT)/%: $(LIB_PRODUCTS) src/*.swift src/%/*.swift
	$(SWIFTC) \
	-o $(BUILD_BIN_ROOT)/$* \
	-I $(BUILD_LIB_ROOT) \
	-L $(BUILD_LIB_ROOT) \
	-Xlinker -rpath \
	-Xlinker @executable_path \
	$(SWIFTFLAGS) \
	src/*.swift src/$*/*.swift

$(BUILD_FOLDERS):
	mkdir -p $@

clean:
	rm -rf $(BUILD_ROOT)

install: | all
	mkdir -p $(DESTDIR)
	chown -R $(shell whoami):staff $(DESTDIR)
	cp -a build/* $(DESTDIR)
	$(info Add PATH="$(DESTDIR)/bin:$$PATH" to ~/.bash_profile to use these utilities)

uninstall:
	rm -r $(DESTDIR)

help:
	@echo "Usage: make [ all <path-to-library> <path-to-swiftmodule> <path-to-swiftdoc\> <path-to-binary> clean install uninstall help ]"