Hacky slashy

BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 20 matching lines @@
   # in files.
   root_extra_deps = []
 }
 
 if (is_official_build) {
   # An official (maximally optimized!) component (optimized for build times)
   # build doesn't make sense and usually doesn't work.
   assert(!is_component_build)
 }
 
+is_fuchsia = current_os == "fuchsia"

[jamesr, 2017/02/17 00:47:35]

ideally this would be in
https://cs.chromium.org/chromium/src/build/config/BUILDCONFIG.gn?q=BUILDCONFI...

[scottmg, 2017/02/17 00:50:45]

Agreed, I wasn't sure what the general feeling was on whether Fuchsia had
exceeded QNX and FreeBSD-level yet. :o

But it would make comparisons less ugly for sure.

+
 # This file defines the following five main targets:
 #
 # "both_gn_and_gyp" should list every root target (target that nothing else
 # depends on) built by GN that is also built in the GYP build.
 #
 # "gn_all" should (transitively) cause everything to be built; if you run
 # 'ninja gn_all' and then 'ninja all', the second build should do no work.
 #
 # "gn_only" should list every root target that is *not* intended to be built in
 # a GYP build. Because GN has different rules for deciding what an 'all' build
@@ skipping 21 matching lines @@
 
 group("gn_all") {
   testonly = true
 
   deps = [
     ":both_gn_and_gyp",
     ":gn_only",
     ":gn_visibility",
   ]
 
-  if (!is_ios) {
+  if (!is_ios && !is_fuchsia) {
     deps += [ "//v8:gn_all" ]
   }
 }
 
 # TODO(GYP_GONE): This target exists for compatibility with GYP, specifically
 # for the iOS bots and the official builders.
 group("All") {
   testonly = true
 
   deps = [
@@ skipping 103 matching lines @@
 }
 
 # The "both_gn_and_gyp" target should reflect every target that is built
 # in both the GN and GYP builds, and ideally it should match the
 # "both_gn_and_gyp" target in build/gn_migration.gypi line-for-line.
 group("both_gn_and_gyp") {
   testonly = true
   deps = [
     "//base:base_unittests",
     "//chrome/installer",
-    "//components:components_unittests",
     "//net:net_unittests",
-    "//skia:skia_unittests",
     "//sql:sql_unittests",
     "//tools/ipc_fuzzer:ipc_fuzzer_all",
-    "//ui/base:ui_base_unittests",
-    "//ui/gfx:gfx_unittests",
     "//url:url_unittests",
   ]
 
-  if (!is_android && !is_chromecast) {
+  if (!is_fuchsia) {
+    deps += [
+      "//components:components_unittests",
+      "//skia:skia_unittests",
+      "//ui/base:ui_base_unittests",
+      "//ui/gfx:gfx_unittests",
+    ]
+  }
+
+  if (!is_android && !is_chromecast && !is_fuchsia) {
     deps += [
       "//crypto:crypto_unittests",
       "//google_apis/gcm:gcm_unit_tests",
     ]
   }
 
-  if (!is_ios && !is_android && !is_chromecast) {
+  if (!is_ios && !is_android && !is_chromecast && !is_fuchsia) {
     deps += [
       "//chrome",
       "//chrome/test:browser_tests",
       "//chrome/test:interactive_ui_tests",
       "//chrome/test:sync_integration_tests",
       "//chrome/test/chromedriver:chromedriver_unittests",
       "//components/sync/tools:sync_client",
       "//components/sync/tools:sync_listen_notifications",
       "//extensions:extensions_browsertests",
       "//extensions:extensions_unittests",
@@ skipping 38 matching lines @@
       "//third_party/webrtc/tools:frame_analyzer",
       "//tools/battor_agent",
       "//tools/battor_agent:battor_agent_unittests",
       "//tools/gn",
       "//tools/gn:gn_unittests",
       "//tools/perf/clear_system_cache",
       "//ui/accessibility:accessibility_unittests",
     ]
   }
 
-  if (!is_ios) {
+  if (!is_ios && !is_fuchsia) {
     # TODO(GYP): Figure out which of these should actually build on iOS,
     # and whether there should be other targets that are iOS-only and missing.
     deps += [
       "//cc:cc_unittests",
       "//chrome/test:telemetry_perf_unittests",
       "//chrome/test:unit_tests",
       "//components:components_browsertests",
       "//components/policy:policy_templates",
       "//content/shell:content_shell",
       "//content/test:content_browsertests",
@@ skipping 23 matching lines @@
       "//third_party/angle/src/tests:angle_unittests",
       "//third_party/catapult/telemetry:bitmaptools($host_toolchain)",
       "//third_party/smhasher:pmurhash",
       "//tools/imagediff($host_toolchain)",
       "//ui/display:display_unittests",
       "//ui/events:events_unittests",
       "//ui/gl:gl_unittests",
       "//ui/touch_selection:ui_touch_selection_unittests",
       "//url/ipc:url_ipc_unittests",
     ]
-  } else {
+  } else if (is_ios) {
     deps += [ "//ios:all" ]
+  } else if (is_fuchsia) {
+    deps += [ "//fuchsia" ]
   }
 
   deps += root_extra_deps
 
   if (enable_extensions) {
     deps += [ "//extensions/shell:app_shell_unittests" ]
   }
 
   if (enable_media_router) {
     deps += [ "//chrome/browser/media/router" ]
@@ skipping 177 matching lines @@
       "//google_apis:google_apis_unittests",
     ]
   }
 
   if ((is_win || is_mac || is_linux) &&
       (target_cpu == "x86" || target_cpu == "x64")) {
     deps += [ "//third_party/swiftshader" ]
   }
 
   # TODO(GYP): Figure out which of these should (and can) build
-  # for chromeos/ios.
-  if (!is_chromeos && !is_ios) {
+  # for chromeos/ios/fuchsia.
+  if (!is_chromeos && !is_ios && !is_fuchsia) {
     deps += [
       "//base:build_utf8_validator_tables",
       "//base:check_example",
       "//cc:cc_perftests",
       "//cc/blink:cc_blink_unittests",
       "//components:components_perftests",
       "//components/sync:run_sync_testserver",
       "//device:device_unittests",
       "//gin:gin_shell",
       "//gin:gin_unittests",
@@ skipping 141 matching lines @@
     ]
     deps -= [
       "//crypto:crypto_unittests",  # TODO(GYP)
       "//net:net_unittests",  # TODO(GYP)
     ]
 
     if (!(is_component_build && is_debug && target_cpu == "x86")) {
       deps +=
           [ "//chrome/installer/mini_installer:next_version_mini_installer" ]
     }
-  } else if (!is_android && !is_ios) {
+  } else if (!is_android && !is_ios && !is_fuchsia) {
     deps += [ "//breakpad:symupload($host_toolchain)" ]
   }
 
   if (is_chromecast) {
     deps += [ "//chromecast:cast_shell" ]
   }
 
   if (is_mac || is_win) {
     deps += [
       "//third_party/crashpad/crashpad/handler:crashpad_handler",
       "//third_party/crashpad/crashpad/tools:crashpad_database_util",
     ]
   }
 
   if (use_openh264) {
     deps += [
       "//third_party/openh264:common",
       "//third_party/openh264:encoder",
       "//third_party/openh264:processing",
     ]
   }
 }
 
 group("gn_only") {
   testonly = true
 
   deps = []
 
-  if (!is_ios) {
+  if (!is_ios && !is_fuchsia) {
     deps += [
       "//media/mojo:media_mojo_unittests",
       "//services:service_unittests",
     ]
   }
 
-  if (!is_android && !is_ios) {
+  if (!is_android && !is_ios && !is_fuchsia) {
     deps += [ "//content/browser/bluetooth/tools:bluetooth_metrics_hash" ]
   }
 
-  if (!is_android && !is_ios && !is_chromeos) {
+  if (!is_android && !is_ios && !is_chromeos && !is_fuchsia) {
     deps += [ "//components/proximity_auth:proximity_auth_unittests" ]
   }
 
   if (is_win || is_linux) {
     deps += [
       "//mash:all",
       "//media/mojo/services:media_service_unittests",
       "//mojo",
       "//services/navigation",
       "//services/preferences:tests",
@@ skipping 132 matching lines @@
   }
 }
 
 group("gn_visibility") {
   deps = [
     "//build/config/sanitizers:options_sources",
     # "//third_party/pdfium:pdfium_embeddertests",  # TODO(GYP): visibility?
     # "//third_party/pdfium:pdfium_unittests",  # TODO(GYP): visibility?
   ]
 
-  if (!is_ios) {
+  if (!is_ios && !is_fuchsia) {
     deps += [
       "//v8:postmortem-metadata",
       "//v8:v8_snapshot",
     ]
   }
 }
 
-if (!is_ios) {
+if (!is_ios && !is_fuchsia) {
   # This group includes all of the targets needed to build and test Blink,
   # including running the layout tests (see below).
   group("blink_tests") {
     testonly = true
 
     deps = [
       ":webkit_layout_tests",
       "//third_party/WebKit/public:all_blink",
     ]
   }
@@ skipping 55 matching lines @@
   }
 }
 
 # Add a dummy target for compatibility w/ GYP
 group("chromium_swarm_tests") {
 }
 
 group("chromium_builder_perf") {
   testonly = true
 
-  if (!is_ios && !is_android && !is_chromecast) {
+  if (!is_ios && !is_android && !is_chromecast && !is_fuchsia) {
     data_deps = [
       "//cc:cc_perftests",
       "//chrome/test:load_library_perf_tests",
       "//chrome/test:telemetry_perf_tests",
       "//components/tracing:tracing_perftests",
       "//gpu:gpu_perftests",
       "//media:media_perftests",
       "//tools/perf/chrome_telemetry_build:telemetry_chrome_test",
     ]
 
@@ skipping 15 matching lines @@
       data_deps += [
         "//chrome/installer/mini_installer:mini_installer",
         "//chrome/test:angle_perftests",
       ]
     } else {
       data_deps += [ "//breakpad:minidump_stackwalk($host_toolchain)" ]
     }
   }
 }
 
-if (!is_ios && !is_android && !is_chromecast) {
+if (!is_ios && !is_android && !is_chromecast && !is_fuchsia) {
   group("chromium_builder_asan") {
     testonly = true
 
     deps = [
       "//chrome:chrome",
       "//content/shell:content_shell",
       "//v8:d8",
     ]
     if (!is_win) {
       deps += [
@@ skipping 65 matching lines @@
   assert(target_name != "")  # Mark as used.
   sources = invoker.actual_sources
   assert(
       sources == invoker.actual_sources,
       "Do not use a platform name in your output directory (found \"$root_build_dir\"). http://crbug.com/548283")
 }
 
 assert_valid_out_dir("_unused") {
   actual_sources = [ "$root_build_dir/foo" ]
 }