#

# Copyright (c) 2015, 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.

#

# 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 makes modifications to module-info.java files based on the build

# configuration.

#

# Depending on build platform, imported modules and optional parts of the build

# being active, some modules need to have extra exports, provides or uses

# declarations added to them. These optional extras are defined in .extra files:

#

# src/<module>/<share,platform>/classes/module-info.java.extra

#

# The contents of the .extra files are simply extra lines that could fit into

# the module-info file.

#

# This makefile is called once for each from-module with the variable

# MODULE naming the from-module.

#

# The modified module-info.java files are put in the gensrc directory where

# they will automatically override the static versions in the src tree.

#

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

default: all

include $(SPEC)

include MakeBase.gmk

include Modules.gmk

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

# Define this here since jdk/make/Tools.gmk cannot be included from the top

# make directory. Should probably move some tools away from the jdk repo.

TOOL_GENMODULEINFOSOURCE = $(JAVA_SMALL) \

    $(INTERIM_LANGTOOLS_ARGS) \

    -cp "$(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes" \

    build.tools.module.GenModuleInfoSource

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

# Name of data file. Keep module-info.java.ext until javafx has changed.

MOD_FILENAME := module-info.java.extra module-info.java.ext

# Construct all possible src directories for the module.

MODULE_CLASSES_DIRS := $(call FindModuleSrcDirs, $(MODULE))

# Find all the .extra files in the src dirs.

MOD_FILES := $(wildcard $(foreach f, $(MOD_FILENAME), $(addsuffix /$(f), \

    $(MODULE_CLASSES_DIRS))))

ifneq ($(MOD_FILES), )

  # Only make this call if modification files are found for this module

  ALL_MODULES := $(call FindAllModules)

  # Read the contents of all the files into a variable. Replace space with / to

  # let space represent new lines in the variable as $(shell) normalizes all

  # whitespace.

  $(foreach f, $(MOD_FILES), \

    $(eval MOD_FILE_CONTENTS += $(shell $(GREP) -v -e ".\*" -e "//" $f | $(TR) ' ' '/')))

  # Separate the modifications into qualified exports and the rest

  MODS_QUALIFIED_EXPORTS := $(call containing, /to/, $(MOD_FILE_CONTENTS))

  MODS_REST := $(filter-out $(MODS_QUALIFIED_EXPORTS), $(MOD_FILE_CONTENTS))

  # Filter the contents for modules that are actually being built

  ALL_MODULES_FILTER := $(addprefix %/, $(addsuffix ;, $(ALL_MODULES)))

  MODIFICATIONS := $(filter $(ALL_MODULES_FILTER), $(MODS_QUALIFIED_EXPORTS)) \

      $(MODS_REST)

  # Returns non empty if the package exists in the current module

  # Param 1 - Name of package with dots

  PackageExists = \

      $(strip $(wildcard $(addsuffix $(subst .,/,/$(strip $1)), \

          $(MODULE_CLASSES_DIRS) \

          $(addsuffix /$(MODULE), $(IMPORT_MODULES_CLASSES)) \

          $(JDK_OUTPUTDIR)/modules/$(MODULE) \

      )))

  # Convert the modification lines into arguments for the modification tool.

  # Filter out modifications for non existing to-modules.

  $(foreach line, $(MODIFICATIONS), \

    $(eval split_line := $(subst /,$(SPACE),$(line))) \

    $(eval command := $(word 1, $(split_line))) \

    $(if $(filter $(command), exports), \

      $(eval package := $(patsubst %;,%,$(word 2, $(split_line)))) \

      $(if $(call PackageExists, $(package)), \

        $(eval to_module := $(patsubst %;,%,$(word 4, $(split_line)))) \

        $(if $(to_module), \

          $(eval ARGS += -$(command) $(package)/$(to_module)) \

        , \

          $(eval ARGS += -$(command) $(package)) \

        ) \

      ) \

    , \

      $(if $(filter $(command), provides), \

        $(eval provider := $(patsubst %;,%,$(word 2, $(split_line)))) \

        $(eval class := $(patsubst %;,%,$(word 4, $(split_line)))) \

        $(eval ARGS += -$(command) $(provider)/$(class)) \

      , \

        $(error A module-info.extra in $(MODULE) contains invalid command $(command)) \

      ) \

    ) \

  )

  ifneq ($(ARGS), )

    $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java: \

        $(firstword $(call FindAllModuleInfos, $(MODULE))) \

        $(BUILD_TOOLS_JDK) \

        $(call DependOnVariable, ARGS)

		$(MKDIR) -p $(@D)

		$(RM) $@ $@.tmp

		$(TOOL_GENMODULEINFOSOURCE) $(ARGS) -o $@.tmp $<

		$(MV) $@.tmp $@

    TARGETS += $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java

  endif

endif

# If no modifications are found for this module, remove any module-info.java

# created by a previous build since that is no longer valid.

ifeq ($(MODIFICATIONS), )

  ifneq ($(wildcard $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java), )

    $(shell $(RM) $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java)

  endif

endif

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

all: $(TARGETS)