1 #
   2 # Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 ################################################################################
  27 # This file makes modifications to module-info.java files based on the build
  28 # configuration.
  29 #
  30 # Depending on build platform, imported modules and optional parts of the build
  31 # being active, some modules need to have extra exports, provides or uses
  32 # declarations added to them. These optional extras are defined in .extra files:
  33 #
  34 # src/<module>/<share,platform>/classes/module-info.java.extra
  35 #
  36 # The contents of the .extra files are simply extra lines that could fit into
  37 # the module-info file.
  38 #
  39 # This makefile is called once for each from-module with the variable
  40 # MODULE naming the from-module.
  41 #
  42 # The modified module-info.java files are put in the gensrc directory where
  43 # they will automatically override the static versions in the src tree.
  44 #
  45 ################################################################################
  46 
  47 default: all
  48 
  49 include $(SPEC)
  50 include MakeBase.gmk
  51 include Modules.gmk
  52 
  53 ################################################################################
  54 # Define this here since jdk/make/Tools.gmk cannot be included from the top
  55 # make directory. Should probably move some tools away from the jdk repo.
  56 TOOL_GENMODULEINFOSOURCE = $(JAVA_SMALL) \
  57     $(INTERIM_LANGTOOLS_ARGS) \
  58     -cp "$(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes" \
  59     build.tools.module.GenModuleInfoSource
  60 
  61 ################################################################################
  62 
  63 # Name of data file. Keep module-info.java.ext until javafx has changed.
  64 MOD_FILENAME := module-info.java.extra module-info.java.ext
  65 
  66 # Construct all possible src directories for the module.
  67 MODULE_CLASSES_DIRS := $(call FindModuleSrcDirs, $(MODULE))
  68 
  69 # Find all the .extra files in the src dirs.
  70 MOD_FILES := $(wildcard $(foreach f, $(MOD_FILENAME), $(addsuffix /$(f), \
  71     $(MODULE_CLASSES_DIRS))))
  72 
  73 ifneq ($(MOD_FILES), )
  74   # Only make this call if modification files are found for this module
  75   ALL_MODULES := $(call FindAllModules)
  76 
  77   # Read the contents of all the files into a variable. Replace space with / to
  78   # let space represent new lines in the variable as $(shell) normalizes all
  79   # whitespace.
  80   $(foreach f, $(MOD_FILES), \
  81     $(eval MOD_FILE_CONTENTS += $(shell $(GREP) -v ".\*" $f | $(TR) ' ' '/')))
  82 
  83   # Filter the contents for modules that are actually being built
  84   MODULES_FILTER := $(addprefix %/, $(addsuffix ;, $(ALL_MODULES)))
  85   MODULES_FILTER += provides%
  86   MODIFICATIONS := $(filter $(MODULES_FILTER), $(MOD_FILE_CONTENTS))
  87 
  88   # Convert the modification lines into arguments for the modification tool.
  89   # Filter out modifications for non existing to-modules.
  90   $(foreach line, $(MODIFICATIONS), \
  91     $(eval split_line := $(subst /,$(SPACE),$(line))) \
  92     $(eval command := $(word 1, $(split_line))) \
  93     $(eval package := $(word 2, $(split_line))) \
  94     $(eval to_module := $(patsubst %;,%,$(word 4, $(split_line)))) \
  95     $(eval ARGS += -$(command) $(package)/$(to_module)))
  96 
  97   ifneq ($(ARGS), )
  98     $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java: \
  99         $(firstword $(call FindAllModuleInfos, $(MODULE))) \
 100         $(BUILD_TOOLS_JDK) \
 101         $(call DependOnVariable, ARGS)
 102                 $(MKDIR) -p $(@D)
 103                 $(RM) $@ $@.tmp
 104                 $(TOOL_GENMODULEINFOSOURCE) $(ARGS) -o $@.tmp $<
 105                 $(MV) $@.tmp $@
 106 
 107     TARGETS += $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java
 108   endif
 109 
 110 endif
 111 
 112 # If no modifications are found for this module, remove any module-info.java
 113 # created by a previous build since that is no longer valid.
 114 ifeq ($(MODIFICATIONS), )
 115   ifneq ($(wildcard $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java), )
 116     $(shell $(RM) $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java)
 117   endif
 118 endif
 119 
 120 ################################################################################
 121 
 122 all: $(TARGETS)