# Copyright 2018 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.
#

template("assert_cmx") {
  package_meta = []
  if (defined(invoker.meta)) {
    package_meta = invoker.meta
  }

  found_cmx = false

  # deprecated_system_image are not fuchsia packages. Skip.
  if (invoker.deprecated_system_image) {
    found_cmx = true
  }

  # Tests don't launch as components by default, so no cmx is required.
  if (defined(invoker.testonly) && invoker.testonly) {
    found_cmx = true
  }

  # Unmigrated targets are whitelisted.
  if (defined(invoker.deprecated_no_cmx)) {
    found_cmx = true
  }

  # Packages that only contain shell binaries are allowed.
  if (defined(invoker.binaries)) {
    bins = []
    foreach(binary, invoker.binaries) {
      if (defined(binary.shell) && binary.shell) {
        bins += [ binary ]
      }
    }
    if (bins == invoker.binaries) {
      found_cmx = true
    }
  }

  # Packages that only contain data are allowed.
  if (!defined(invoker.binaries) && !defined(invoker.binary)) {
    found_cmx = true
  }

  foreach(item, package_meta) {
    dest = item.path
    if (defined(item.dest)) {
      dest = item.dest
    }
    if (get_path_info(dest, "extension") == "cmx") {
      found_cmx = true
    }
  }

  assert(found_cmx == true,
      "No cmx found in package $target_name. Please add cmx to your component. "
      + "See https://fuchsia.googlesource.com/docs/+/master/the-book/"
      + "package_metadata.md#Component-manifest. "
      + "Also see go/cmx-everywhere for the migration design.")
}