GNUmakefileBuilderl

# -*- mode: Makefile -*-
# Copyright (c) 2015, Grzegorz Junka
# All rights reserved.
#
# 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.
#
# * Redistributions in binary form must reproduce the above copyright notice,
#   this list of conditions and the following disclaimer in the documentation
#   and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#-------------------------------------------------------------------------------

## Defaults, change if needed
#-------------------------------------------------------------------------------
# Details of the builderl repository
BLDERLURL  ?= -b master git://github.com/yoonka/builderl.git $(BLDERLPATH)/
# An optional custom makefile to include
CUSTOMMK   ?= GNUmakefileCustom
#-------------------------------------------------------------------------------

# Pull builderl repository if needed
ISBLDERL := $(shell git --git-dir=$(BLDERLPATH)/.git \
  --work-tree=$(BLDERLPATH)/ status > /dev/null 2>&1; echo $$?)
BLDISDIFF := $(shell git diff $(BLDERLPATH) 2>&1 | wc -l | tr -d '[[:space:]]')
ifneq ($(ISBLDERL)-$(BLDISDIFF),0-0)
$(info Repository $(BLDERLPATH)/ not up to date, will try to update)
ISDIRTY := $(shell git diff $(BLDERLPATH) 2>/dev/null \
  | grep "\-dirty" | wc -l | tr -d '[[:space:]]')
ifeq ($(ISDIRTY),0)
ISBLDERL := $(shell git submodule update --init $(BLDERLPATH) \
  > /dev/null 2>&1; echo $$?)
ifneq ($(ISBLDERL),0)
$(error Can not update submodule $(BLDERLPATH))
endif # ISBLDERL
$(shell rm -f bin/builderl)
$(shell ln -s ../$(BLDERLPATH) bin/builderl)
else # ISDIRTY
$(warning $(BLDERLPATH)/ contains local changes, not updating!)
endif # ISDIRTY
endif # ISBLDERL-BLDISDIFF

incs := common rel_app_vars targets debug
include $(foreach file,$(incs),$(BLDERLPATH)/makefiles/$(file))

ifneq ($(wildcard $(CUSTOMMK)),)
include $(CUSTOMMK)
endif