1 # Copyright (C) 2007 The Android Open Source Project 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 # 15 16 INTERNAL_CLEAN_STEPS := 17 18 # Builds up a list of clean steps. Creates a unique 19 # id for each step by taking makefile path, INTERNAL_CLEAN_BUILD_VERSION 20 # and appending an increasing number of '@' characters. 21 # 22 # $(1): shell command to run 23 # $(2): indicate to not use makefile path as part of step id if not empty. 24 # $(2) should only be used in build/core/cleanspec.mk: just for compatibility. 25 define _add-clean-step 26 $(if $(strip $(INTERNAL_CLEAN_BUILD_VERSION)),, \ 27 $(error INTERNAL_CLEAN_BUILD_VERSION not set)) 28 $(eval _acs_makefile_prefix := $(lastword $(MAKEFILE_LIST))) 29 $(eval _acs_makefile_prefix := $(subst /,_,$(_acs_makefile_prefix))) 30 $(eval _acs_makefile_prefix := $(subst .,-,$(_acs_makefile_prefix))) 31 $(eval _acs_makefile_prefix := $(_acs_makefile_prefix)_acs) 32 $(if $($(_acs_makefile_prefix)),,\ 33 $(eval $(_acs_makefile_prefix) := $(INTERNAL_CLEAN_BUILD_VERSION))) 34 $(eval $(_acs_makefile_prefix) := $($(_acs_makefile_prefix))@) 35 $(if $(strip $(2)),$(eval _acs_id := $($(_acs_makefile_prefix))),\ 36 $(eval _acs_id := $(_acs_makefile_prefix)$($(_acs_makefile_prefix)))) 37 $(eval INTERNAL_CLEAN_STEPS += $(_acs_id)) 38 $(eval INTERNAL_CLEAN_STEP.$(_acs_id) := $(1)) 39 $(eval _acs_id :=) 40 $(eval _acs_makefile_prefix :=) 41 endef 42 define add-clean-step 43 $(eval # for build/core/cleanspec.mk, dont use makefile path as part of step id) \ 44 $(if $(filter %/cleanspec.mk,$(lastword $(MAKEFILE_LIST))),\ 45 $(eval $(call _add-clean-step,$(1),true)),\ 46 $(eval $(call _add-clean-step,$(1)))) 47 endef 48 49 # Defines INTERNAL_CLEAN_BUILD_VERSION and the individual clean steps. 50 # cleanspec.mk is outside of the core directory so that more people 51 # can have permission to touch it. 52 include $(BUILD_SYSTEM)/cleanspec.mk 53 INTERNAL_CLEAN_BUILD_VERSION := $(strip $(INTERNAL_CLEAN_BUILD_VERSION)) 54 55 # If the clean_steps.mk file is missing (usually after a clean build) 56 # then we won't do anything. 57 CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION) 58 CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS) 59 60 # Read the current state from the file, if present. 61 # Will set CURRENT_CLEAN_BUILD_VERSION and CURRENT_CLEAN_STEPS. 62 # 63 clean_steps_file := $(PRODUCT_OUT)/clean_steps.mk 64 -include $(clean_steps_file) 65 66 ifneq ($(CURRENT_CLEAN_BUILD_VERSION),$(INTERNAL_CLEAN_BUILD_VERSION)) 67 # The major clean version is out-of-date. Do a full clean, and 68 # don't even bother with the clean steps. 69 $(info *** A clean build is required because of a recent change.) 70 $(shell rm -rf $(OUT_DIR)) 71 $(info *** Done with the cleaning, now starting the real build.) 72 else 73 # The major clean version is correct. Find the list of clean steps 74 # that we need to execute to get up-to-date. 75 steps := \ 76 $(filter-out $(CURRENT_CLEAN_STEPS),$(INTERNAL_CLEAN_STEPS)) 77 $(foreach step,$(steps), \ 78 $(info Clean step: $(INTERNAL_CLEAN_STEP.$(step))) \ 79 $(shell $(INTERNAL_CLEAN_STEP.$(step))) \ 80 ) 81 steps := 82 endif 83 CURRENT_CLEAN_BUILD_VERSION := 84 CURRENT_CLEAN_STEPS := 85 86 # Write the new state to the file. 87 # 88 $(shell \ 89 mkdir -p $(dir $(clean_steps_file)) && \ 90 echo "CURRENT_CLEAN_BUILD_VERSION := $(INTERNAL_CLEAN_BUILD_VERSION)" > \ 91 $(clean_steps_file) ;\ 92 echo "CURRENT_CLEAN_STEPS := $(INTERNAL_CLEAN_STEPS)" >> \ 93 $(clean_steps_file) \ 94 ) 95 96 clean_steps_file := 97 INTERNAL_CLEAN_STEPS := 98 INTERNAL_CLEAN_BUILD_VERSION := 99 100 101 # Since products and build variants (unfortunately) share the same 102 # PRODUCT_OUT staging directory, things can get out of sync if different 103 # build configurations are built in the same tree. The following logic 104 # will notice when the configuration has changed and remove the files 105 # necessary to keep things consistent. 106 107 previous_build_config_file := $(PRODUCT_OUT)/previous_build_config.mk 108 109 # TODO: this special case for the sdk is only necessary while "sdk" 110 # is a valid make target. Eventually, it will just be a product, at 111 # which point TARGET_PRODUCT will handle it and we can avoid this check 112 # of MAKECMDGOALS. The "addprefix" is just to keep things pretty. 113 ifneq ($(TARGET_PRODUCT),sdk) 114 building_sdk := $(addprefix -,$(filter sdk,$(MAKECMDGOALS))) 115 else 116 # Don't bother with this extra part when explicitly building the sdk product. 117 building_sdk := 118 endif 119 120 # A change in the list of aapt configs warrants an installclean, too. 121 aapt_config_list := $(strip $(PRODUCT_AAPT_CONFIG) $(PRODUCT_AAPT_PREF_CONFIG)) 122 123 current_build_config := \ 124 $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)$(building_sdk)-{$(aapt_config_list)} 125 building_sdk := 126 aapt_config_list := 127 force_installclean := false 128 129 # Read the current state from the file, if present. 130 # Will set PREVIOUS_BUILD_CONFIG. 131 # 132 PREVIOUS_BUILD_CONFIG := 133 -include $(previous_build_config_file) 134 PREVIOUS_BUILD_CONFIG := $(strip $(PREVIOUS_BUILD_CONFIG)) 135 ifdef PREVIOUS_BUILD_CONFIG 136 ifneq "$(current_build_config)" "$(PREVIOUS_BUILD_CONFIG)" 137 $(info *** Build configuration changed: "$(PREVIOUS_BUILD_CONFIG)" -> "$(current_build_config)") 138 ifneq ($(DISABLE_AUTO_INSTALLCLEAN),true) 139 force_installclean := true 140 else 141 $(info DISABLE_AUTO_INSTALLCLEAN is set; skipping auto-clean. Your tree may be in an inconsistent state.) 142 endif 143 endif 144 endif # else, this is the first build, so no need to clean. 145 PREVIOUS_BUILD_CONFIG := 146 147 # Write the new state to the file. 148 # 149 $(shell \ 150 mkdir -p $(dir $(previous_build_config_file)) && \ 151 echo "PREVIOUS_BUILD_CONFIG := $(current_build_config)" > \ 152 $(previous_build_config_file) \ 153 ) 154 previous_build_config_file := 155 current_build_config := 156 157 # 158 # installclean logic 159 # 160 161 # The files/dirs to delete during an installclean. This includes the 162 # non-common APPS directory, which may contain the wrong resources. 163 # 164 # Deletes all of the files that change between different build types, 165 # like "make user" vs. "make sdk". This lets you work with different 166 # build types without having to do a full clean each time. E.g.: 167 # 168 # $ make -j8 all 169 # $ make installclean 170 # $ make -j8 user 171 # $ make installclean 172 # $ make -j8 sdk 173 # 174 installclean_files := \ 175 $(HOST_OUT)/obj/NOTICE_FILES \ 176 $(HOST_OUT)/sdk \ 177 $(PRODUCT_OUT)/*.img \ 178 $(PRODUCT_OUT)/*.txt \ 179 $(PRODUCT_OUT)/*.xlb \ 180 $(PRODUCT_OUT)/*.zip \ 181 $(PRODUCT_OUT)/data \ 182 $(PRODUCT_OUT)/obj/APPS \ 183 $(PRODUCT_OUT)/obj/NOTICE_FILES \ 184 $(PRODUCT_OUT)/obj/PACKAGING \ 185 $(PRODUCT_OUT)/recovery \ 186 $(PRODUCT_OUT)/root \ 187 $(PRODUCT_OUT)/system \ 188 $(PRODUCT_OUT)/dex_bootjars \ 189 $(PRODUCT_OUT)/obj/JAVA_LIBRARIES \ 190 $(PRODUCT_OUT)/obj/FAKE 191 192 # The files/dirs to delete during a dataclean, which removes any files 193 # in the staging and emulator data partitions. 194 dataclean_files := \ 195 $(PRODUCT_OUT)/data/* \ 196 $(PRODUCT_OUT)/data-qemu/* \ 197 $(PRODUCT_OUT)/userdata-qemu.img 198 199 # make sure *_OUT is set so that we won't result in deleting random parts 200 # of the filesystem. 201 ifneq (2,$(words $(HOST_OUT) $(PRODUCT_OUT))) 202 $(error both HOST_OUT and PRODUCT_OUT should be set at this point.) 203 endif 204 205 # Define the rules for commandline invocation. 206 .PHONY: dataclean 207 dataclean: FILES := $(dataclean_files) 208 dataclean: 209 $(hide) rm -rf $(FILES) 210 @echo "Deleted emulator userdata images." 211 212 .PHONY: installclean 213 installclean: FILES := $(installclean_files) 214 installclean: dataclean 215 $(hide) rm -rf $(FILES) 216 @echo "Deleted images and staging directories." 217 218 ifeq "$(force_installclean)" "true" 219 $(info *** Forcing "make installclean"...) 220 $(info *** rm -rf $(dataclean_files) $(installclean_files)) 221 $(shell rm -rf $(dataclean_files) $(installclean_files)) 222 $(info *** Done with the cleaning, now starting the real build.) 223 endif 224 force_installclean := 225
