GensrcModuleInfo.gmk revision 2093:ac5b9049ea28 
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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
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21# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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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
47default: all
48
49include $(SPEC)
50include MakeBase.gmk
51include 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.
56TOOL_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.
64MOD_FILENAME := module-info.java.extra module-info.java.ext
65
66# Construct all possible src directories for the module.
67MODULE_CLASSES_DIRS := $(call FindModuleSrcDirs, $(MODULE))
68
69# Find all the .extra files in the src dirs.
70MOD_FILES := $(wildcard $(foreach f, $(MOD_FILENAME), $(addsuffix /$(f), \
71    $(MODULE_CLASSES_DIRS))))
72
73ifneq ($(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 -e ".\*" -e "//" $f | $(TR) ' ' '/')))
82
83  # Separate the modifications into qualified exports and the rest
84  MODS_QUALIFIED_EXPORTS := $(call containing, /to/, $(MOD_FILE_CONTENTS))
85  MODS_REST := $(filter-out $(MODS_QUALIFIED_EXPORTS), $(MOD_FILE_CONTENTS))
86
87  # Filter the contents for modules that are actually being built
88  ALL_MODULES_FILTER := $(addprefix %/, $(addsuffix ;, $(ALL_MODULES)))
89  MODIFICATIONS := $(filter $(ALL_MODULES_FILTER), $(MODS_QUALIFIED_EXPORTS)) \
90      $(MODS_REST)
91
92  # Returns non empty if the package exists in the current module
93  # Param 1 - Name of package with dots
94  PackageExists = \
95      $(strip $(wildcard $(addsuffix $(subst .,/,/$(strip $1)), \
96          $(MODULE_CLASSES_DIRS) \
97          $(addsuffix /$(MODULE), $(IMPORT_MODULES_CLASSES)) \
98      )))
99
100  # Convert the modification lines into arguments for the modification tool.
101  # Filter out modifications for non existing to-modules.
102  $(foreach line, $(MODIFICATIONS), \
103    $(eval split_line := $(subst /,$(SPACE),$(line))) \
104    $(eval command := $(word 1, $(split_line))) \
105    $(if $(filter $(command), exports), \
106      $(eval package := $(patsubst %;,%,$(word 2, $(split_line)))) \
107      $(if $(call PackageExists, $(package)), \
108        $(eval to_module := $(patsubst %;,%,$(word 4, $(split_line)))) \
109        $(if $(to_module), \
110          $(eval ARGS += -$(command) $(package)/$(to_module)) \
111        , \
112          $(eval ARGS += -$(command) $(package)) \
113        ) \
114      ) \
115    , \
116      $(if $(filter $(command), provides), \
117        $(eval provider := $(patsubst %;,%,$(word 2, $(split_line)))) \
118        $(eval class := $(patsubst %;,%,$(word 4, $(split_line)))) \
119        $(eval ARGS += -$(command) $(provider)/$(class)) \
120      , \
121        $(error A module-info.extra in $(MODULE) contains invalid command $(command)) \
122      ) \
123    ) \
124  )
125
126  ifneq ($(ARGS), )
127    $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java: \
128        $(firstword $(call FindAllModuleInfos, $(MODULE))) \
129        $(BUILD_TOOLS_JDK) \
130        $(call DependOnVariable, ARGS)
131		$(MKDIR) -p $(@D)
132		$(RM) $@ $@.tmp
133		$(TOOL_GENMODULEINFOSOURCE) $(ARGS) -o $@.tmp $<
134		$(MV) $@.tmp $@
135
136    TARGETS += $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java
137  endif
138
139endif
140
141# If no modifications are found for this module, remove any module-info.java
142# created by a previous build since that is no longer valid.
143ifeq ($(MODIFICATIONS), )
144  ifneq ($(wildcard $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java), )
145    $(shell $(RM) $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java)
146  endif
147endif
148
149################################################################################
150
151all: $(TARGETS)
152