#
# Copyright (c) 2011, 2020, 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.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

################################################################################
# This file contains helper functions for Main.gmk.
################################################################################

ifndef _MAINSUPPORT_GMK
_MAINSUPPORT_GMK := 1

# Setup make rules for creating a top-level target.
# Parameter 1 is the name of the rule. This name is used as variable prefix.
#
# Remaining parameters are named arguments. These include:
#   MAKEFILE the makefile to delegate to
#   TARGET the makefile target
#   ARGS arguments to the makefile
#   DEPS the target(s) this new rule depends on
#
SetupTarget = $(NamedParamsMacroTemplate)
define SetupTargetBody
  $1:
	+($(CD) $(TOPDIR)/make && $(MAKE) $(MAKE_ARGS) -f $$($1_MAKEFILE).gmk $$($1_TARGET) $$($1_ARGS))

  ALL_TARGETS += $1

  ifneq ($(DEPS), none)
    $1: $$($1_DEPS)
  endif
endef

define CleanDocs
	@$(PRINTF) "Cleaning docs ..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/docs
	$(RM) -r $(SUPPORT_OUTPUTDIR)/javadoc
	$(RM) -r $(IMAGES_OUTPUTDIR)/docs
	@$(PRINTF) " done\n"
endef

# Cleans the dir given as $1
define CleanDir
	@$(PRINTF) "Cleaning $(strip $1) build artifacts ..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	($(CD) $(OUTPUTDIR) && $(RM) -r $1)
	@$(PRINTF) " done\n"
endef

define CleanSupportDir
	@$(PRINTF) "Cleaning $(strip $1) build artifacts ..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/$(strip $1)
	@$(PRINTF) " done\n"
endef

define CleanMakeSupportDir
	@$(PRINTF) "Cleaning $(strip $1) make support artifacts ..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(MAKESUPPORT_OUTPUTDIR)/$(strip $1)
	@$(PRINTF) " done\n"
endef

define CleanTest
	@$(PRINTF) "Cleaning test $(strip $1) ..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/test/$(strip $(subst -,/,$1))
        # Remove as much of the test directory structure as is empty
	$(RMDIR) -p $(dir $(SUPPORT_OUTPUTDIR)/test/$(strip $(subst -,/,$1))) 2> /dev/null || true
	@$(PRINTF) " done\n"
endef

define Clean-gensrc
	@$(PRINTF) "Cleaning gensrc $(if $1,for $(strip $1) )..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/gensrc/$(strip $1)
	@$(PRINTF) " done\n"
endef

define Clean-java
	@$(PRINTF) "Cleaning java $(if $1,for $(strip $1) )..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(JDK_OUTPUTDIR)/modules/$(strip $1)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/special_classes/$(strip $1)
	$(PRINTF) " done\n"
	$(PRINTF) "Cleaning headers $(if $1,for $(strip $1)) ..."
	$(RM) -r $(SUPPORT_OUTPUTDIR)/headers/$(strip $1)
	@$(PRINTF) " done\n"
endef

define Clean-native
	@$(PRINTF) "Cleaning native $(if $1,for $(strip $1) )..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/native/$(strip $1)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/modules_libs/$(strip $1)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/modules_cmds/$(strip $1)
	@$(PRINTF) " done\n"
endef

define Clean-include
	@$(PRINTF) "Cleaning include $(if $1,for $(strip $1) )..."
	@$(PRINTF) "\n" $(LOG_DEBUG)
	$(RM) -r $(SUPPORT_OUTPUTDIR)/modules_include/$(strip $1)
	@$(PRINTF) " done\n"
endef

define CleanModule
  $(call Clean-gensrc, $1)
  $(call Clean-java, $1)
  $(call Clean-native, $1)
  $(call Clean-include, $1)
endef

define AddTestDependency
  test-$(strip $1): $2

  exploded-test-$(strip $1): $2

  ifneq ($(filter $(TEST), $1), )
    TEST_DEPS += $2
  endif
endef

################################################################################

PHASE_MAKEDIRS := $(TOPDIR)/make

# Helper macro for DeclareRecipesForPhase
# Declare a recipe for calling the module and phase specific makefile.
# If there are multiple makefiles to call, create a rule for each topdir
# that contains a makefile with the target $module-$suffix-$repodir,
# (i.e: java.base-gensrc-src)
# Normally there is only one makefile, and the target will just be
# $module-$suffix
# Param 1: Name of list to add targets to
# Param 2: Module name
define DeclareRecipeForModuleMakefile
  $2-$$($1_TARGET_SUFFIX):
	+($(CD) $(TOPDIR)/make && $(MAKE) $(MAKE_ARGS) \
	    -f ModuleWrapper.gmk -I $$(TOPDIR)/make/common/modules  \
	    $$(patsubst %,-I%/modules/$2,$$(PHASE_MAKEDIRS)) \
	    MODULE=$2 MAKEFILE_PREFIX=$$($1_FILE_PREFIX) $$($1_EXTRA_ARGS))

endef

# Helper macro for DeclareRecipesForPhase
# Param 1: Name of list to add targets to
# Param 2: Module name
define DeclareRecipesForPhaseAndModule
  $1_$2_MAKEFILES := $$(strip $$(wildcard \
      $$(addsuffix /modules/$2/$$($1_FILE_PREFIX).gmk, $$(PHASE_MAKEDIRS))))

  # Only declare recipes if there are makefiles to call
  ifneq ($$($1_$2_MAKEFILES), )
    # Add the top dir specific target to target list regardless of if recipe
    # generation is disabled.
    ifeq ($$($1_MULTIPLE_MAKEFILES), true)
      $$(foreach d, $$($1_$2_TOPDIRS), \
        $$(eval $1 += $2-$$($1_TARGET_SUFFIX)-$$(notdir $$d)))
    endif
    ifeq ($(NO_RECIPES),)
      $$(eval $$(call DeclareRecipeForModuleMakefile,$1,$2))
    endif
    $1 += $2-$$($1_TARGET_SUFFIX)
    $1_MODULES += $2
  endif
endef

# Declare recipes for a specific module and build phase if there are makefiles
# present for the specific combination.
# Param 1: Name of list to add targets to
# Named params:
# TARGET_SUFFIX : Suffix of target to create for recipe
# FILE_PREFIX : File prefix for this build phase
# CHECK_MODULES : List of modules to try
# MULTIPLE_MAKEFILES : Set to true to handle makefiles for the same module and
#                      phase in multiple repos
# EXTRA_ARGS : Add extra make args to each makefile call
# Exported variables:
# $1_MODULES : All modules that had rules generated
# $1_TARGETS : All targets generated
define DeclareRecipesForPhase
  $(foreach i,2 3 4 5 6 7 8, $(if $(strip $($i)),$(strip $1)_$(strip $($i)))$(NEWLINE))
  $(if $(9),$(error Internal makefile error: Too many arguments to \
      DeclareRecipesForPhase, please update MakeHelper.gmk))

  $$(foreach m, $$($(strip $1)_CHECK_MODULES), \
      $$(eval $$(call DeclareRecipesForPhaseAndModule,$(strip $1),$$m)))

  $(strip $1)_TARGETS := $$($(strip $1))
endef

################################################################################

endif # _MAINSUPPORT_GMK
