#!/usr/bin/make -f
#
# \brief  Tool for preparing the Nim tool-chain for the Genode OS Framework
# \author Emery Hemingway
# \date   2017-07-04
#

help:
	@$(ECHO)
	@$(ECHO) "Build Nim compiler for the Genode OS Framework tool chain"
	@$(ECHO)
	@$(ECHO) "--- available commands ---"
	@$(ECHO) "build         - build Nim compiler"
	@$(ECHO) "clean         - clean everything except contrib sources"
	@$(ECHO) "install       - copy Nim compiler and standard library to '$(INSTALL_LOCATION)'"
	@$(ECHO)

.PHONY: build help install

GENODE_DIR ?= $(realpath $(dir $(firstword $(MAKEFILE_LIST)))/..)
include $(GENODE_DIR)/tool/ports/mk/common.inc

LOCAL_INSTALL_LOCATION ?= /usr/local
INSTALL_LOCATION := $(LOCAL_INSTALL_LOCATION)/genode-nim

NIM_CONTRIB_DIR = $(shell $(GENODE_DIR)/tool/ports/current nim)
NIM_CSOURCES_CONTRIB_DIR = $(shell $(GENODE_DIR)/tool/ports/current nim-csources)

BUILD_DIR = build/nim

build: $(BUILD_DIR)/bin/nim $(BUILD_DIR)/koch

$(BUILD_DIR)/bin/nim: $(BUILD_DIR)/koch
	@$(ECHO) "$(BRIGHT_COL)building Nim compiler...$(DEFAULT_COL)"
	$(VERBOSE)cd $(BUILD_DIR) && ./koch boot -d:release --verbosity:0 --hint[Processing]:off

$(BUILD_DIR)/koch: $(BUILD_DIR)/koch.nim $(BUILD_DIR)/.bootstrap.tag
	@$(ECHO) "$(BRIGHT_COL)building Koch...$(DEFAULT_COL)"
	$(VERBOSE)cd $(BUILD_DIR) && ./bin/nim c koch

$(BUILD_DIR)/.bootstrap.tag: $(BUILD_DIR)/csources
	@$(ECHO) "$(BRIGHT_COL)building bootstrap compiler...$(DEFAULT_COL)"
	$(VERBOSE)cd $(BUILD_DIR)/csources && sh build.sh
	@touch $@

$(BUILD_DIR)/csources: $(NIM_CSOURCES_CONTRIB_DIR) $(BUILD_DIR)/koch.nim
	@$(ECHO) "$(BRIGHT_COL)copying Nim C sources...$(DEFAULT_COL)"
	$(VERBOSE)mkdir -p $@
	$(VERBOSE)cp -a $</* $@

$(BUILD_DIR)/koch.nim: $(NIM_CONTRIB_DIR)
	@$(ECHO) "$(BRIGHT_COL)copying Nim sources...$(DEFAULT_COL)"
	$(VERBOSE)mkdir -p $(BUILD_DIR)
	$(VERBOSE)cp -a $</* $(BUILD_DIR)

$(NIM_CONTRIB_DIR):
	@$(ECHO) "$(BRIGHT_COL)preparing Nim...$(DEFAULT_COL)"
	$(VERBOSE)$(GENODE_DIR)/tool/ports/prepare_port nim

$(NIM_CSOURCES_CONTRIB_DIR):
	@$(ECHO) "$(BRIGHT_COL)preparing Nim C sources...$(DEFAULT_COL)"
	$(VERBOSE)$(GENODE_DIR)/tool/ports/prepare_port nim-csources

copy: build
	@$(ECHO) "$(BRIGHT_COL)installing Nim to '$(INSTALL_LOCATION)'...$(DEFAULT_COL)"
	$(VERBOSE)rm -r $(BUILD_DIR)/csources
	$(VERBOSE)sudo mkdir -p $(INSTALL_LOCATION)
	$(VERBOSE)sudo cp -a $(BUILD_DIR)/* $(INSTALL_LOCATION)

install: copy

clean:
	$(VERBOSE)rm -rf $(BUILD_DIR)