build/icu/icu_assembly_input_bundle.gni

# Copyright 2023 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/assembly/assembly_input_bundle.gni")
import("config.gni")  # icu_flavors

# An ICU-aware assembly_input_bundle.
#
# Args:
#
#   - icu_base_packages: same as `base_packages` from assembly_input_bundle,
#     but needs ICU adaptation.
#   - icu_cache_packages: same as `cache_packages` from assembly_input_bundle,
#     but needs ICU adaptation.
#   - all other args are the same as in `assembly_input_bundle`
#
# Refer to icu_source_set.gni for detailed comments on some constructs below,
# the ideas of which are commonly reused in all icu_* templates.
template("icu_assembly_input_bundle") {
  foreach(icu_flavor, icu_flavors) {
    assembly_input_bundle(
        "${target_name}.icu_${icu_flavor.name}_${icu_flavor.commit_id}") {
      forward_variables_from(invoker,
                             "*",
                             [
                               "icu_base_packages",
                               "icu_cache_packages",
                             ])

      if (defined(invoker.icu_base_packages)) {
        if (!defined(base_packages)) {
          base_packages = []
        }

        foreach(icu_base_package, invoker.icu_base_packages) {
          base_packages += [ "${icu_base_package}.icu_${icu_flavor.name}_${icu_flavor.commit_id}" ]
        }
      }

      if (defined(invoker.icu_cache_packages)) {
        if (!defined(cache_packages)) {
          cache_packages = []
        }

        foreach(icu_cache_package, invoker.icu_cache_packages) {
          cache_packages += [ "${icu_cache_package}.icu_${icu_flavor.name}_${icu_flavor.commit_id}" ]
        }
      }

      # Add ICU variations of other parameters if needed.
    }
  }

  # Also produce the unflavored input bundle.
  assembly_input_bundle("${target_name}") {
    forward_variables_from(invoker,
                           "*",
                           [
                             "icu_base_packages",
                             "icu_cache_packages",
                           ])

    if (defined(invoker.icu_base_packages)) {
      if (!defined(base_packages)) {
        base_packages = []
      }

      foreach(icu_base_package, invoker.icu_base_packages) {
        base_packages += [ "${icu_base_package}" ]
      }
    }

    if (defined(invoker.icu_cache_packages)) {
      if (!defined(cache_packages)) {
        cache_packages = []
      }

      foreach(icu_cache_package, invoker.icu_cache_packages) {
        cache_packages += [ "${icu_cache_package}" ]
      }
    }

    # Add ICU variations of other parameters if needed.
  }
}