version_defaults.mk revision 6eb7ad5e1020c0785f685b5a2e2a99b8c218ce16
1# 2# Copyright (C) 2008 The Android Open Source Project 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15# 16 17# 18# Handle various build version information. 19# 20# Guarantees that the following are defined: 21# PLATFORM_VERSION 22# PLATFORM_SDK_VERSION 23# PLATFORM_VERSION_CODENAME 24# DEFAULT_APP_TARGET_SDK 25# BUILD_ID 26# BUILD_NUMBER 27# BUILD_DATETIME 28# PLATFORM_SECURITY_PATCH 29# 30 31# Look for an optional file containing overrides of the defaults, 32# but don't cry if we don't find it. We could just use -include, but 33# the build.prop target also wants INTERNAL_BUILD_ID_MAKEFILE to be set 34# if the file exists. 35# 36INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk) 37ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)" 38 include $(INTERNAL_BUILD_ID_MAKEFILE) 39endif 40 41ifeq "" "$(PLATFORM_VERSION)" 42 # This is the canonical definition of the platform version, 43 # which is the version that we reveal to the end user. 44 # Update this value when the platform version changes (rather 45 # than overriding it somewhere else). Can be an arbitrary string. 46 PLATFORM_VERSION := O 47endif 48 49ifeq "" "$(PLATFORM_SDK_VERSION)" 50 # This is the canonical definition of the SDK version, which defines 51 # the set of APIs and functionality available in the platform. It 52 # is a single integer that increases monotonically as updates to 53 # the SDK are released. It should only be incremented when the APIs for 54 # the new release are frozen (so that developers don't write apps against 55 # intermediate builds). During development, this number remains at the 56 # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds 57 # the code-name of the new development work. 58 59 # When you change PLATFORM_SDK_VERSION please ensure you also update the 60 # corresponding methods for isAtLeast* in the following java file: 61 # platform/frameworks/support/compat/gingerbread/android/support/v4/os/BuildCompat.java 62 PLATFORM_SDK_VERSION := 25 63endif 64 65ifeq "" "$(PLATFORM_JACK_MIN_SDK_VERSION)" 66 # This is definition of the min SDK version given to Jack for the current 67 # platform. For released version it should be the same as 68 # PLATFORM_SDK_VERSION. During development, this number may be incremented 69 # before PLATFORM_SDK_VERSION if the plateform starts to add new java 70 # language supports. 71 PLATFORM_JACK_MIN_SDK_VERSION := 25 72endif 73 74ifeq "" "$(PLATFORM_VERSION_CODENAME)" 75 # This is the current development code-name, if the build is not a final 76 # release build. If this is a final release build, it is simply "REL". 77 PLATFORM_VERSION_CODENAME := O 78 79 # This is all of the development codenames that are active. Should be either 80 # the same as PLATFORM_VERSION_CODENAME or a comma-separated list of additional 81 # codenames after PLATFORM_VERSION_CODENAME. 82 PLATFORM_VERSION_ALL_CODENAMES := $(PLATFORM_VERSION_CODENAME) 83endif 84 85ifeq "REL" "$(PLATFORM_VERSION_CODENAME)" 86 PLATFORM_PREVIEW_SDK_VERSION := 0 87else 88 ifeq "" "$(PLATFORM_PREVIEW_SDK_VERSION)" 89 # This is the definition of a preview SDK version over and above the current 90 # platform SDK version. Unlike the platform SDK version, a higher value 91 # for preview SDK version does NOT mean that all prior preview APIs are 92 # included. Packages reading this value to determine compatibility with 93 # known APIs should check that this value is precisely equal to the preview 94 # SDK version the package was built for, otherwise it should fall back to 95 # assuming the device can only support APIs as of the previous official 96 # public release. 97 # This value will always be 0 for release builds. 98 PLATFORM_PREVIEW_SDK_VERSION := 1 99 endif 100endif 101 102ifeq "" "$(DEFAULT_APP_TARGET_SDK)" 103 # This is the default minSdkVersion and targetSdkVersion to use for 104 # all .apks created by the build system. It can be overridden by explicitly 105 # setting these in the .apk's AndroidManifest.xml. It is either the code 106 # name of the development build or, if this is a release build, the official 107 # SDK version of this release. 108 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)" 109 DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION) 110 else 111 DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME) 112 endif 113endif 114 115ifeq "" "$(PLATFORM_SECURITY_PATCH)" 116 # Used to indicate the security patch that has been applied to the device. 117 # It must signify that the build includes all security patches issued up through the designated Android Public Security Bulletin. 118 # It must be of the form "YYYY-MM-DD" on production devices. 119 # It must match one of the Android Security Patch Level strings of the Public Security Bulletins. 120 # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty. 121 PLATFORM_SECURITY_PATCH := 2017-01-01 122endif 123 124ifeq "" "$(PLATFORM_BASE_OS)" 125 # Used to indicate the base os applied to the device. 126 # Can be an arbitrary string, but must be a single word. 127 # 128 # If there is no $PLATFORM_BASE_OS set, keep it empty. 129 PLATFORM_BASE_OS := 130endif 131 132ifeq "" "$(BUILD_ID)" 133 # Used to signify special builds. E.g., branches and/or releases, 134 # like "M5-RC7". Can be an arbitrary string, but must be a single 135 # word and a valid file name. 136 # 137 # If there is no BUILD_ID set, make it obvious. 138 BUILD_ID := UNKNOWN 139endif 140 141ifeq "" "$(BUILD_DATETIME)" 142 # Used to reproduce builds by setting the same time. Must be the number 143 # of seconds since the Epoch. 144 BUILD_DATETIME := $(shell date +%s) 145endif 146 147ifneq (,$(findstring Darwin,$(shell uname -sm))) 148DATE := date -r $(BUILD_DATETIME) 149else 150DATE := date -d @$(BUILD_DATETIME) 151endif 152 153ifeq "" "$(BUILD_NUMBER)" 154 # BUILD_NUMBER should be set to the source control value that 155 # represents the current state of the source code. E.g., a 156 # perforce changelist number or a git hash. Can be an arbitrary string 157 # (to allow for source control that uses something other than numbers), 158 # but must be a single word and a valid file name. 159 # 160 # If no BUILD_NUMBER is set, create a useful "I am an engineering build 161 # from this date/time" value. Make it start with a non-digit so that 162 # anyone trying to parse it as an integer will probably get "0". 163 BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S) 164endif 165