tools/gn2bp/gen_desc_json.sh

#!/bin/bash
set -x

# Run this script inside a full chromium checkout.
# TODO: add support for applying local patches.

OUT_PATH="out/cronet"

#######################################
# Generate desc.json for a specified architecture.
# Globals:
#   OUT_PATH
# Arguments:
#   target_cpu, string
#######################################
function gn_desc() {
  local -a gn_args=(
    "target_os = \"android\""
    "enable_websockets = false"
    "disable_file_support = true"
    "disable_brotli_filter = false"
    "is_component_build = false"
    "use_crash_key_stubs = true"
    "use_partition_alloc = false"
    "include_transport_security_state_preload_list = false"
    "use_platform_icu_alternatives = true"
    "default_min_sdk_version = 19"
    "use_errorprone_java_compiler = true"
    "enable_reporting = true"
    "use_hashed_jni_names = true"
    "treat_warnings_as_errors = false"
    "enable_base_tracing = false"
  )
  gn_args+=("target_cpu = \"${1}\"")

  # Only set arm_use_neon on arm architectures to prevent warning from being
  # written to json output.
  if [[ "$1" =~ ^arm ]]; then
    gn_args+=("arm_use_neon = false")
  fi

  # Configure gn args.
  gn gen "${OUT_PATH}" --args="${gn_args[*]}"

  # Generate desc.json.
  local -r out_file="desc_${1}.json"
  gn desc "${OUT_PATH}" --format=json --all-toolchains "//*" > "${out_file}"
}

gn_desc x86
gn_desc x64
gn_desc arm
gn_desc arm64