#   BSD LICENSE
#
#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
#   Copyright 2015 6WIND S.A.
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#
#   Redistribution and use in source and binary forms, with or without
#   modification, are permitted provided that the following conditions
#   are met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
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#       notice, this list of conditions and the following disclaimer in
#       the documentation and/or other materials provided with the
#       distribution.
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#       contributors may be used to endorse or promote products derived
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#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# Configuration, compilation and installation can be done at once
# with make install T=<config>

ifdef T # config, build and install combined
# The build directory is T and may be prepended with O
O ?= .
RTE_OUTPUT := $O/$T
else # standard install
# Build directory is given with O=
O ?= build
RTE_OUTPUT := $O
endif

ifdef T # defaults with T= will install an almost flat staging tree
export prefix ?=
else
prefix      ?=     /usr/local
endif
exec_prefix ?=      $(prefix)
bindir      ?= $(exec_prefix)/bin
libdir      ?= $(exec_prefix)/lib
includedir  ?=      $(prefix)/include/dpdk
datarootdir ?=      $(prefix)/share
datadir     ?=       $(datarootdir)/dpdk
sdkdir      ?=                $(datadir)
targetdir   ?=                $(datadir)/$(RTE_TARGET)

# The install directories may be staged in DESTDIR

# Create the directory $1 if not exists
rte_mkdir = test -d $1 || mkdir -p $1

# Create the relative symbolic link $2 -> $1
# May be replaced with --relative option of ln from coreutils-8.16
rte_symlink = ln -snf $$($(RTE_SDK)/scripts/relpath.sh $1 $(dir $2)) $2

.PHONY: pre_install
pre_install:
ifdef T
	$(Q)if [ ! -f $(RTE_OUTPUT)/.config ]; then \
		$(MAKE) config O=$(RTE_OUTPUT); \
	elif cmp -s $(RTE_OUTPUT)/.config.orig $(RTE_OUTPUT)/.config; then \
		$(MAKE) config O=$(RTE_OUTPUT); \
	else \
		if [ -f $(RTE_OUTPUT)/.config.orig ] ; then \
			tmp_build=$(RTE_OUTPUT)/.config.tmp; \
			$(MAKE) config O=$$tmp_build; \
			if ! cmp -s $(RTE_OUTPUT)/.config.orig $$tmp_build/.config ; then \
				echo "Conflict: local config and template config have both changed"; \
				exit 1; \
			fi; \
		fi; \
		echo "Using local configuration"; \
	fi
	$(Q)$(MAKE) all O=$(RTE_OUTPUT)
endif

.PHONY: install
install:
ifeq ($(DESTDIR)$(if $T,,+),)
	@echo Installation cannot run with T defined and DESTDIR undefined
else
	@echo ================== Installing $(DESTDIR)$(prefix)/
	$(Q)$(MAKE) O=$(RTE_OUTPUT) T= install-runtime
	$(Q)$(MAKE) O=$(RTE_OUTPUT) T= install-sdk
	@echo Installation in $(DESTDIR)$(prefix)/ complete
endif

install-runtime:
	$(Q)$(call rte_mkdir, $(DESTDIR)$(libdir))
	$(Q)cp -a    $O/lib/* $(DESTDIR)$(libdir)
	$(Q)$(call rte_mkdir, $(DESTDIR)$(bindir))
	$(Q)tar -cf -      -C $O app  --exclude 'app/*.map' \
		--exclude 'app/cmdline*' --exclude app/test \
		--exclude app/testacl --exclude app/testpipeline | \
	    tar -xf -      -C $(DESTDIR)$(bindir) --strip-components=1 \
		--keep-newer-files --warning=no-ignore-newer
	$(Q)$(call rte_mkdir,      $(DESTDIR)$(datadir))
	$(Q)cp -a $(RTE_SDK)/tools $(DESTDIR)$(datadir)

install-sdk:
	$(Q)$(call rte_mkdir, $(DESTDIR)$(includedir))
	$(Q)tar -chf -     -C $O include | \
	    tar -xf -      -C $(DESTDIR)$(includedir) --strip-components=1 \
		--keep-newer-files --warning=no-ignore-newer
	$(Q)$(call rte_mkdir,                            $(DESTDIR)$(sdkdir))
	$(Q)cp -a               $(RTE_SDK)/{mk,scripts}  $(DESTDIR)$(sdkdir)
	$(Q)$(call rte_mkdir,                            $(DESTDIR)$(targetdir))
	$(Q)cp -a               $O/.config               $(DESTDIR)$(targetdir)
	$(Q)$(call rte_symlink, $(DESTDIR)$(includedir), $(DESTDIR)$(targetdir)/include)
	$(Q)$(call rte_symlink, $(DESTDIR)$(libdir),     $(DESTDIR)$(targetdir)/lib)