Automatic versioning for Camera.

  Bug: 10461009

This is the scheme copied from GMS Core and modified by Babel, which
allows us to generate version number more easily and also incorporate
build numbers into it.

Change-Id: I6ed4bf03e545a22423cb9936a5fcb67a50133490

Android.mk

@@ -14,7 +14,12 @@ LOCAL_SRC_FILES += $(call all-java-files-under, src_pd)
 
 LOCAL_RESOURCE_DIR += $(LOCAL_PATH)/res
 
-LOCAL_AAPT_FLAGS := --auto-add-overlay
+
+include $(LOCAL_PATH)/version.mk
+LOCAL_AAPT_FLAGS := \
+        --auto-add-overlay \
+        --version-name "$(version_name_package)" \
+        --version-code $(version_code_package) \
 
 LOCAL_PACKAGE_NAME := Camera2
 
@@ -24,4 +29,4 @@ LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 
 include $(BUILD_PACKAGE)
 
-include $(call all-makefiles-under, $(LOCAL_PATH))
\ No newline at end of file
+include $(call all-makefiles-under, $(LOCAL_PATH))

AndroidManifest.xml

 <?xml version="1.0" encoding="utf-8"?>
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.android.camera2"
-    android:versionCode="1"
-    android:versionName="2.0" >
+    package="com.android.camera2">
 
     <uses-sdk
         android:minSdkVersion="14"

version.mk

+#
+# Copyright (C) 2013 Google Inc.
+#
+
+# The version code scheme for the package apk is:
+#      Mmbbbtad
+# where
+#    M - major version (one or more digits)
+#    m - minor version (exactly 1 digit)
+#  bbb - manually specified build number (exactly 3 digits)
+#    t - build type (exactly 1 digit).  Current valid values are:
+#           0 : eng build
+#           1 : build server build
+#    a - device architecture (exactly 1 digit).  Current valid values are:
+#           0 : non-native
+#           1 : armv5te
+#           3 : armv7-a
+#           5 : mips
+#           7 : x86
+#    d - asset density (exactly 1 digit).  Current valid values are:
+#           0 : all densities
+#           2 : mdpi
+#           4 : hdpi
+#           6 : xhdpi
+# Mmbbb is specified manually.  tad is automatically set during the build.
+#
+# For the client jar, the version code is agnostic to the target architecture and density: Mmbbbt00
+#
+# NOTE: arch needs to be more significant than density because x86 devices support running ARM
+# code in emulation mode, so all x86 versions must be higher than all ARM versions to ensure
+# we deliver true x86 code to those devices.
+
+# Specify the following manually.  Note that base_version_minor must be exactly 1 digit and
+# base_version_build must be exactly 3 digits.
+base_version_major := 2
+base_version_minor := 0
+base_version_build := 001
+
+#####################################################
+#####################################################
+# Collect automatic version code parameters
+ifneq "" "$(filter eng.%,$(BUILD_NUMBER))"
+  # This is an eng build
+  base_version_buildtype := 0
+else
+  # This is a build server build
+  base_version_buildtype := 1
+endif
+
+ifeq "$(TARGET_ARCH)" "x86"
+  base_version_arch := 7
+else ifeq "$(TARGET_ARCH)" "mips"
+  base_version_arch := 5
+else ifeq "$(TARGET_ARCH)" "arm"
+  ifeq ($(TARGET_ARCH_VARIANT),armv5te)
+    base_version_arch := 1
+  else
+    base_version_arch := 3
+  endif
+else
+  base_version_arch := 0
+endif
+
+ifeq "$(package_dpi)" "mdpi"
+  base_version_density := 2
+else ifeq "$(package_dpi)" "hdpi"
+  base_version_density := 4
+else ifeq "$(package_dpi)" "xhdpi"
+  base_version_density := 6
+else
+  base_version_density := 0
+endif
+
+# Build the version code
+version_code_package := $(base_version_major)$(base_version_minor)$(base_version_build)$(base_version_buildtype)$(base_version_arch)$(base_version_density)
+
+# The version name scheme for the package apk is:
+# - For eng build (t=0):     M.m.bbb eng.$(USER)-hh
+# - For build server (t=1):  M.m.bbb (nnnnnn-hh)
+#       where nnnnnn is the build number from the build server (no zero-padding)
+# On eng builds, the BUILD_NUMBER has the user and timestamp inline
+ifneq "" "$(filter eng.%,$(BUILD_NUMBER))"
+  git_hash := $(shell git --git-dir $(LOCAL_PATH)/.git log -n 1 --pretty=format:%h)
+  date_string := $(shell date +%m%d%y_%H%M%S)
+  version_name_package := $(base_version_major).$(base_version_minor).$(base_version_build) (eng.$(USER).$(git_hash).$(date_string)-$(base_version_arch)$(base_version_density))
+else
+  version_name_package := $(base_version_major).$(base_version_minor).$(base_version_build) ($(BUILD_NUMBER)-$(base_version_arch)$(base_version_density))
+endif
+
+# Cleanup the locals
+base_version_major :=
+base_version_minor :=
+base_version_build :=
+base_version_buildtype :=
+base_version_arch :=
+base_version_density :=
+git_hash :=
+date_string :=