BUILD.gn

# Copyright 2013 The Flutter 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/toolchain/clang.gni")
import("//flutter/common/config.gni")
import("//flutter/examples/examples.gni")
import("//flutter/shell/platform/config.gni")
import("//flutter/shell/platform/glfw/config.gni")
import("//flutter/testing/testing.gni")
import("//third_party/dart/build/dart/copy_tree.gni")

# Whether to build the dartdevc sdk, libraries, and source files
# required for the flutter web sdk.
declare_args() {
  full_dart_sdk = false
}

config("config") {
  include_dirs = [ ".." ]
  if (is_win) {
    if (current_cpu != "x86") {
      cflags = [ "/WX" ]  # Treat warnings as errors.
    }
  }
}

config("export_dynamic_symbols") {
  # --dynamic-list is the GNU linker syntax supported by ELF linkers.
  # -exported_symbols_list is the macOS linker syntax. The different flags
  # accept files formatted differently, so we have exported_symbols.sym for GNU
  # linker syntax, and exported_symbols_mac.sym for the macOS linker syntax.
  if (is_linux || is_fuchsia) {
    inputs = [ "//flutter/common/exported_symbols.sym" ]
    ldflags = [ "-Wl,--dynamic-list="   rebase_path(inputs[0], root_build_dir) ]
  } else if (is_mac && !use_xcode) {
    inputs = [ "//flutter/common/exported_symbols_mac.sym" ]
    ldflags = [
      "-Xlinker",
      "-exported_symbols_list",
      "-Xlinker",
      rebase_path(inputs[0], root_build_dir),
    ]
  }
}

if (flutter_prebuilt_dart_sdk) {
  copy_trees("_copy_trees") {
    sources = [
      {
        target = "copy_dart_sdk"
        visibility = [ ":dart_sdk" ]
        source = prebuilt_dart_sdk
        dest = "$root_out_dir/dart-sdk"
        ignore_patterns = "{}"
      },
    ]
  }
}

group("dart_sdk") {
  if (build_engine_artifacts) {
    if (flutter_prebuilt_dart_sdk) {
      public_deps = [ ":copy_dart_sdk" ]
    } else {
      public_deps = [ "//third_party/dart:create_sdk" ]
    }
  }
}

group("flutter") {
  testonly = true

  # Compile the engine.
  public_deps = [
    ":unittests",
    "//flutter/shell/platform/embedder:flutter_engine",
    "//flutter/sky",
  ]

  # Ensure the example for a sample embedder compiles.
  if (build_embedder_examples) {
    public_deps  = [
      "//flutter/examples/glfw",
      "//flutter/examples/vulkan_glfw",
    ]
  }

  # If enbaled, compile the SDK / snapshot.
  if (!is_fuchsia) {
    public_deps  = [ "//flutter/lib/snapshot:generate_snapshot_bins" ]

    if (build_engine_artifacts) {
      public_deps  = [
        ":dart_sdk",
        "//flutter/flutter_frontend_server:frontend_server",

        # This must be listed explicitly for desktop cross-builds since
        # //flutter/lib/snapshot:generate_snapshot_bin will only build
        # gen_snapshot for the host and not the target.
        "//third_party/dart/runtime/bin:gen_snapshot",

        # Impeller artifacts - compiler and libtessellator
        "//flutter/impeller/compiler:impellerc",
        "//flutter/impeller/tessellator:tessellator_shared",

        # path_ops
        "//flutter/tools/path_ops",
      ]

      if (full_dart_sdk) {
        public_deps  = [ "//flutter/web_sdk" ]
      }
    }
  }

  if (build_engine_artifacts) {
    public_deps  = [
      "//flutter/shell/testing",
      "//flutter/tools/const_finder",
      "//flutter/tools/font-subset",
    ]
  }

  # Compile all benchmark targets if enabled.
  if (enable_unittests && !is_win && !is_fuchsia) {
    public_deps  = [
      "//flutter/display_list:display_list_benchmarks",
      "//flutter/display_list:display_list_builder_benchmarks",
      "//flutter/fml:fml_benchmarks",
      "//flutter/lib/ui:ui_benchmarks",
      "//flutter/shell/common:shell_benchmarks",
      "//flutter/third_party/txt:txt_benchmarks",
    ]
  }

  if ((flutter_runtime_mode == "debug" || flutter_runtime_mode == "profile") &&
      (is_ios || is_android)) {
    public_deps  = [ "//flutter/testing/scenario_app" ]
  }

  if (is_android && flutter_runtime_mode == "profile" &&
      current_cpu == "arm64") {
    public_deps  = [ "//flutter/testing/android_background_image" ]
  }
}

group("unittests") {
  testonly = true

  public_deps = []
  if (is_android) {
    public_deps  =
        [ "//flutter/shell/platform/android:flutter_shell_native_unittests" ]
  }

  # Compile all unittests targets if enabled.
  if (enable_unittests) {
    public_deps  = [
      "//flutter/display_list:display_list_rendertests",
      "//flutter/display_list:display_list_unittests",
      "//flutter/flow:flow_unittests",
      "//flutter/fml:fml_unittests",
      "//flutter/lib/ui:ui_unittests",
      "//flutter/runtime:dart_plugin_registrant_unittests",
      "//flutter/runtime:no_dart_plugin_registrant_unittests",
      "//flutter/runtime:runtime_unittests",
      "//flutter/shell/common:shell_unittests",
      "//flutter/shell/platform/embedder:embedder_a11y_unittests",
      "//flutter/shell/platform/embedder:embedder_proctable_unittests",
      "//flutter/shell/platform/embedder:embedder_unittests",
      "//flutter/testing:testing_unittests",
      "//flutter/testing/dart",
      "//flutter/testing/smoke_test_failure",
      "//flutter/third_party/tonic/tests:tonic_unittests",
      "//flutter/third_party/txt:txt_unittests",
    ]

    # The accessibility library only supports Mac and Windows at the moment.
    if (is_mac || is_win) {
      public_deps  =
          [ "//flutter/third_party/accessibility:accessibility_unittests" ]
    }

    if (is_fuchsia) {
      public_deps  = [ "//flutter/shell/platform/fuchsia:tests" ]
    }

    if (is_mac || is_linux) {
      public_deps  = [ "//flutter/impeller:impeller_unittests" ]
    }

    if (is_mac) {
      public_deps  =
          [ "//flutter/shell/platform/darwin:flutter_channels_unittests" ]
    }

    if (!is_win && !is_fuchsia) {
      public_deps  = [
        "//flutter/shell/platform/android/external_view_embedder:android_external_view_embedder_unittests",
        "//flutter/shell/platform/android/jni:jni_unittests",
        "//flutter/shell/platform/android/platform_view_android_delegate:platform_view_android_delegate_unittests",
      ]
    }

    # Unit tests for desktop embeddings should only be built if the desktop
    # embeddings are being built.
    if (enable_desktop_embeddings) {
      public_deps  = [
        "//flutter/shell/platform/common:common_cpp_core_unittests",
        "//flutter/shell/platform/common/client_wrapper:client_wrapper_unittests",
      ]

      if (!is_fuchsia) {
        # These tests require the embedder and thus cannot run on fuchsia.
        # TODO(): Enable when embedder works on fuchsia.
        public_deps  =
            [ "//flutter/shell/platform/common:common_cpp_unittests" ]

        # These tests require GLFW and thus cannot run on fuchsia.
        public_deps  = [ "//flutter/shell/platform/glfw/client_wrapper:client_wrapper_glfw_unittests" ]
      }

      if (is_linux) {
        public_deps  =
            [ "//flutter/shell/platform/linux:flutter_linux_unittests" ]
        if (build_glfw_shell) {
          public_deps  =
              [ "//flutter/shell/platform/glfw:flutter_glfw_unittests" ]
        }
      }

      if (is_mac) {
        public_deps  = [ "//flutter/shell/platform/darwin/macos:flutter_desktop_darwin_unittests" ]
      }

      if (is_win) {
        public_deps  = [
          "//flutter/shell/platform/windows:flutter_windows_unittests",
          "//flutter/shell/platform/windows/client_wrapper:client_wrapper_windows_unittests",
        ]
      }
    }
  }
}

if (build_engine_artifacts) {
  group("archives") {
    testonly = true

    deps = [ "//flutter/build/archives:artifacts" ]
  }
}

group("dist") {
  testonly = true

  deps = [ "//flutter/sky/dist" ]
}

if (is_fuchsia && enable_unittests) {
  group("fuchsia_tests") {
    testonly = true

    deps = [ "//flutter/shell/platform/fuchsia:tests" ]
  }
}