kc3-lang/angle/scripts/roll_aosp.sh

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• Hash : 20eb9be5
  Author :
  Date : 2020-07-07T16:24:55
  

  Generate Android.bp from multiple gn descriptions
  
  With the introduction of ABI-specific build targets (zlib), the script
  generate_android_bp.py needs to be updated to consume ABI-specific gn
  descriptions and generate ABI-specific build rules for each target.
  
  The roll_aosp.sh script was updated to generate ABI-specific gn
  descriptions for each:
      arm
      arm64
      x86
      x64
  
  Bug: b/160727922
  Test: Manual script execution and building in AOSP
  Change-Id: I459b388176f8fcc010f9f5668535d941b931cdd4
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2285272
  Commit-Queue: Tim Van Patten <timvp@google.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• scripts/roll_aosp.sh

• #!/bin/bash
  
  #  Copyright The ANGLE Project Authors. All rights reserved.
  #  Use of this source code is governed by a BSD-style license that can be
  #  found in the LICENSE file.
  #
  # Generates a roll CL within the ANGLE repository of AOSP.
  
  GN_OUTPUT_DIRECTORY=out/Android
  
  deps=(
      "third_party/spirv-tools/src"
      "third_party/glslang/src"
      "third_party/spirv-headers/src"
      "third_party/vulkan-headers/src"
      "third_party/jsoncpp"
      "third_party/jsoncpp/source"
      "third_party/vulkan_memory_allocator"
      "third_party/zlib"
  )
  
  # Only add the parts of NDK that are required by ANGLE. The entire dep is too large.
  delete_only_deps=(
      "third_party/android_ndk"
  )
  
  add_only_deps=(
      "third_party/android_ndk/sources/android/cpufeatures"
  )
  
  # Delete dep directories so that gclient can check them out
  for dep in ${deps[@]} ${delete_only_deps[@]}; do
      rm -rf $dep
  done
  
  # Sync all of ANGLE's deps so that 'gn gen' works
  python scripts/bootstrap.py
  gclient sync -D
  
  abis=(
      "arm"
      "arm64"
      "x86"
      "x64"
  )
  
  rm -r ${GN_OUTPUT_DIRECTORY}
  for abi in ${abis[@]}; do
      # generate gn build files and convert them to blueprints
      gn_args=(
          "target_os = \"android\""
          "is_component_build = false"
          "is_debug = false"
  
          # Build for 64-bit CPUs
          "target_cpu = \"$abi\""
  
          # Target ndk API 26 to make sure ANGLE can use the Vulkan backend on Android
          "android32_ndk_api_level = 26"
          "android64_ndk_api_level = 26"
  
          # Disable all backends except Vulkan
          "angle_enable_vulkan = true"
          "angle_enable_gl = true" # TODO(geofflang): Disable GL once Andrid no longer requires it. anglebug.com/4444
          "angle_enable_d3d9 = false"
          "angle_enable_d3d11 = false"
          "angle_enable_null = false"
          "angle_enable_metal = false"
  
          # SwiftShader is loaded as the system Vulkan driver on Android, not compiled by ANGLE
          "angle_enable_swiftshader = false"
  
          # Disable all shader translator targets except desktop GL (for Vulkan)
          "angle_enable_essl = true" # TODO(geofflang): Disable ESSL once Andrid no longer requires it. anglebug.com/4444
          "angle_enable_glsl = true" # TODO(geofflang): Disable ESSL once Andrid no longer requires it. anglebug.com/4444
          "angle_enable_hlsl = false"
      )
  
      gn gen ${GN_OUTPUT_DIRECTORY} --args="${gn_args[*]}"
      gn desc ${GN_OUTPUT_DIRECTORY} --format=json "*" > ${GN_OUTPUT_DIRECTORY}/desc.$abi.json
  done
  
  python scripts/generate_android_bp.py \
      ${GN_OUTPUT_DIRECTORY}/desc.arm.json \
      ${GN_OUTPUT_DIRECTORY}/desc.arm64.json \
      ${GN_OUTPUT_DIRECTORY}/desc.x86.json \
      ${GN_OUTPUT_DIRECTORY}/desc.x64.json > Android.bp
  
  rm -r ${GN_OUTPUT_DIRECTORY}
  git add Android.bp
  
  # Delete the .git files in each dep so that it can be added to this repo. Some deps like jsoncpp
  # have multiple layers of deps so delete everything before adding them.
  for dep in ${deps[@]} ${delete_only_deps[@]}; do
     rm -rf $dep/.git
  done
  
  extra_removal_files=(
     # Some third_party deps have OWNERS files which contains users that have not logged into
     # the Android gerrit. Repo cannot upload with these files present.
     "third_party/jsoncpp/OWNERS"
     "third_party/vulkan_memory_allocator/OWNERS"
     "third_party/zlib/OWNERS"
     "third_party/zlib/google/OWNERS"
     "third_party/zlib/contrib/tests/OWNERS"
     "third_party/zlib/contrib/bench/OWNERS"
     "third_party/zlib/contrib/tests/fuzzers/OWNERS"
  )
  
  for removal_file in ${extra_removal_files[@]}; do
     rm $removal_file
  done
  
  for dep in ${deps[@]} ${add_only_deps[@]}; do
     git add -f $dep
  done
  
  git commit --amend --no-edit
  

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