GensrcModuleInfo.gmk revision 2012:b866d54ff8f5 
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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 ".\*" $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
110endif
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.
114ifeq ($(MODIFICATIONS), )
115  ifneq ($(wildcard $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java), )
116    $(shell $(RM) $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/module-info.java)
117  endif
118endif
119
120################################################################################
121
122all: $(TARGETS)
123