#
# Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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# questions.
#

default: all

include $(SPEC)
include MakeBase.gmk

define SetupCreateHgtip

  $$(strip $1)/$(HGTIP_FILENAME): FRC
	$(HG) tip --repository $$(strip $1) --template '{node|short}\n' > $$@.tmp
	if [ ! -f $$@ ] || [ "`$(CAT) $$@`" != "`$(CAT) $$@.tmp`" ]; then \
	  $(MV) $$@.tmp $$@ ; \
	else \
	  $(RM) $$@.tmp ; \
	fi

  TARGETS += $$(strip $1)/$(HGTIP_FILENAME)

endef

# Only try to create the tips if finding an actual hg repository. This will be
# false if building from a source bundle.
$(foreach r, $(call FindAllReposAbs), \
  $(if $(wildcard $r/.hg), $(eval $(call SetupCreateHgtip, $r))) \
)

all: $(TARGETS)

FRC:

.PHONY: all