Windows build

DEPS

@@ -18,7 +18,7 @@ vars = {
   "dart_sdk_revision": "4f9b5084a041a0e7cc26295da1da9109df43ac4c",
   "dart_sdk_git": "git@github.com:shorebirdtech/dart-sdk.git",
   "updater_git": "https://github.com/shorebirdtech/updater.git",
-  "updater_rev": "54e1e2ce2f82e5fe004bd0730c00d4310ab637dc",
+  "updater_rev": "71b5ed65fab03fcf241edf0c74d027de9998da51",
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

common/config.gni

@@ -73,6 +73,10 @@ if (slimpeller) {
   feature_defines_list += [ "SLIMPELLER=1" ]
 }
 
+if (is_ios || is_mac || is_android || is_win) {
+  feature_defines_list += [ "SHOREBIRD_PLATFORM_SUPPORTED=1" ]
+}
+
 if (is_ios || is_mac) {
   flutter_cflags_objc = [
     "-Werror=overriding-method-mismatch",

shell/common/shell.cc

@@ -444,7 +444,7 @@ Shell::Shell(DartVMRef vm,
       weak_factory_gpu_(nullptr),
       weak_factory_(this) {
   // FIXME: This is probably the wrong place to hook into.
-#if FML_OS_ANDROID || FML_OS_IOS || FML_OS_MACOSX
+#if SHOREBIRD_PLATFORM_SUPPORTED
   if (!vm_) {
     shorebird_report_launch_failure();
   } else {

shell/common/shorebird/BUILD.gn

@@ -31,6 +31,15 @@ source_set("shorebird") {
   ]
 
   include_dirs = [ "//flutter/updater" ]
+
+  if (host_os == "win" && target_os == "win") {
+    if (target_cpu == "x64") {
+      libs = [
+        "userenv.lib",
+        "//third_party/updater/target/x86_64-pc-windows-msvc/release/updater.lib",
+      ]
+    }
+  }
 }
 
 if (enable_unittests) {

shell/common/shorebird/shorebird.cc

@@ -21,6 +21,7 @@
 #include "flutter/shell/common/shorebird/snapshots_data_handle.h"
 #include "flutter/shell/common/switches.h"
 #include "fml/logging.h"
+#include "shell/platform/embedder/embedder.h"
 #include "third_party/dart/runtime/include/dart_tools_api.h"
 
 #include "third_party/updater/library/include/updater.h"
@@ -79,8 +80,100 @@ FileCallbacks ShorebirdFileCallbacks() {
   };
 }
 
+// FIXME: consolidate this with the other ConfigureShorebird
+bool ConfigureShorebird(const ShorebirdConfigArgs& args,
+                        std::string& patch_path) {
+  patch_path = args.release_app_library_path;
+  auto shorebird_updater_dir_name = "shorebird_updater";
+
+  auto code_cache_dir = fml::paths::JoinPaths(
+      {std::move(args.code_cache_path), shorebird_updater_dir_name});
+  auto app_storage_dir = fml::paths::JoinPaths(
+      {std::move(args.app_storage_path), shorebird_updater_dir_name});
+
+  fml::CreateDirectory(fml::paths::GetCachesDirectory(),
+                       {shorebird_updater_dir_name},
+                       fml::FilePermission::kReadWrite);
+
+  bool init_result;
+  // Using a block to make AppParameters lifetime explicit.
+  {
+    AppParameters app_parameters;
+    // Combine version and version_code into a single string.
+    // We could also pass these separately through to the updater if needed.
+    auto release_version =
+        args.release_version.version + "+" + args.release_version.build_number;
+    app_parameters.release_version = release_version.c_str();
+    app_parameters.code_cache_dir = code_cache_dir.c_str();
+    app_parameters.app_storage_dir = app_storage_dir.c_str();
+
+    // https://stackoverflow.com/questions/26032039/convert-vectorstring-into-char-c
+    std::vector<const char*> c_paths{};
+    c_paths.push_back(args.release_app_library_path.c_str());
+    // Do not modify application_library_path or c_strings will invalidate.
+
+    app_parameters.original_libapp_paths = c_paths.data();
+    app_parameters.original_libapp_paths_size = c_paths.size();
+
+    // shorebird_init copies from app_parameters and shorebirdYaml.
+    init_result = shorebird_init(&app_parameters, ShorebirdFileCallbacks(),
+                                 args.shorebird_yaml.c_str());
+  }
+
+  // We've decided not to support synchronous updates on launch for now.
+  // It's a terrible user experience (having the app hang on launch) and
+  // instead we will provide examples of how to build a custom update UI
+  // within Dart, including updating as part of login, etc.
+  // https://github.com/shorebirdtech/shorebird/issues/950
+
+  // We only set the base snapshot on iOS for now.
+  // TODO: this won't compile as we don't have a settings object here.
+  // #if FML_OS_IOS || FML_OS_MACOSX
+  //   SetBaseSnapshot(settings);
+  // #endif
+
+  FML_LOG(INFO) << "Checking for active patch";
+  char* c_active_path = shorebird_next_boot_patch_path();
+  if (c_active_path != NULL) {
+    patch_path = c_active_path;
+    shorebird_free_string(c_active_path);
+    FML_LOG(INFO) << "Shorebird updater: patch path: " << patch_path;
+  } else {
+    FML_LOG(INFO) << "Shorebird updater: no active patch.";
+  }
+
+  // We are careful only to report a launch start in the case where it's the
+  // first time we've configured shorebird this process. Otherwise we could end
+  // up in a case where we report a launch start, but never a completion (e.g.
+  // from package:flutter_work_manager which sometimes creates a FlutterEngine
+  // (and thus configures shorebird) but never runs it. The proper fix for this
+  // is probably to move the launch_start() call to be later in the lifecycle
+  // (when the snapshot is loaded and run, rather than when FlutterEngine is
+  // initialized).  This "hack" will still have a problem where FlutterEngine is
+  // initialized but never run before the app is quit, could still cause us to
+  // suddenly mark-bad a patch that was never actually attempted to launch.
+  if (!init_result) {
+    return false;
+  }
+
+  // Once start_update_thread is called, the next_boot_patch* functions may
+  // change their return values if the shorebird_report_launch_failed
+  // function is called.
+  shorebird_report_launch_start();
+
+  if (shorebird_should_auto_update()) {
+    FML_LOG(INFO) << "Starting Shorebird update";
+    shorebird_start_update_thread();
+  } else {
+    FML_LOG(INFO)
+        << "Shorebird auto_update disabled, not checking for updates.";
+  }
+
+  return true;
+}
+
 void ConfigureShorebird(const ShorebirdFlutterProjectArgs& args,
-                        flutter::Settings& settings) {
+                        Settings& settings) {
   // cache_path is used for both code_cache and app_storage, as we don't persist
   // any data between releases. args.app_path is appended to
   // the settings.application_library_path vector at this function's call site.

shell/common/shorebird/shorebird.h

@@ -6,12 +6,39 @@
 
 namespace flutter {
 
+struct ReleaseVersion {
+  std::string version;
+  std::string build_number;
+};
+
+struct ShorebirdConfigArgs {
+  std::string code_cache_path;
+  std::string app_storage_path;
+  std::string release_app_library_path;
+  std::string shorebird_yaml;
+  ReleaseVersion release_version;
+
+  ShorebirdConfigArgs(std::string code_cache_path,
+                      std::string app_storage_path,
+                      std::string release_app_library_path,
+                      std::string shorebird_yaml,
+                      ReleaseVersion release_version)
+      : code_cache_path(code_cache_path),
+        app_storage_path(app_storage_path),
+        release_app_library_path(release_app_library_path),
+        shorebird_yaml(shorebird_yaml),
+        release_version(release_version) {}
+};
+
+bool ConfigureShorebird(const ShorebirdConfigArgs& args,
+                        std::string& patch_path);
+
 void ConfigureShorebird(const ShorebirdFlutterProjectArgs& args,
-                        flutter::Settings& settings);
+                        Settings& settings);
 
 void ConfigureShorebird(std::string code_cache_path,
                         std::string app_storage_path,
-                        flutter::Settings& settings,
+                        Settings& settings,
                         const std::string& shorebird_yaml,
                         const std::string& version,
                         const std::string& version_code);

shell/platform/embedder/embedder.cc

@@ -2306,13 +2306,16 @@ FlutterEngineResult FlutterEngineInitialize(size_t version,
         "Could not infer the Flutter project to run from given arguments.");
   }
 
+  // FIXME: This is probably the wrong place to call ConfigureShorebird, as
+  // some platforms (i.e., Windows) need to to swap out the app path before
+  // this point.
   // Begin shorebird
+#if FML_OS_MACOSX
   if (args->shorebird_args.shorebird_yaml_contents) {
     settings.application_library_path.push_back(args->shorebird_args.app_path);
     flutter::ConfigureShorebird(args->shorebird_args, settings);
-  } else {
-    FML_LOG(INFO) << "[shorebird] No shorebird YAML contents provided.";
   }
+#endif
   // End shorebird
 
   // Create the engine but don't launch the shell or run the root isolate.

shell/platform/windows/BUILD.gn

@@ -156,6 +156,7 @@ source_set("flutter_windows_source") {
     ":flutter_windows_headers",
     "//flutter/fml:fml",
     "//flutter/impeller/renderer/backend/gles",
+    "//flutter/shell/common/shorebird:shorebird",
     "//flutter/shell/platform/common:common_cpp",
     "//flutter/shell/platform/common:common_cpp_input",
     "//flutter/shell/platform/common:common_cpp_switches",
@@ -169,6 +170,7 @@ source_set("flutter_windows_source") {
     "//flutter/third_party/angle:libEGL_static",
     "//flutter/third_party/angle:libGLESv2_static",
     "//flutter/third_party/rapidjson",
+    "//flutter/third_party/tonic",
   ]
 }
 

shell/platform/windows/flutter_project_bundle.h

@@ -44,6 +44,10 @@ class FlutterProjectBundle {
   // Sets engine switches.
   void SetSwitches(const std::vector<std::string>& switches);
 
+  void SetAotLibraryPath(const std::filesystem::path& aot_library_path) {
+    aot_library_path_ = aot_library_path;
+  }
+
   // Attempts to load AOT data for this bundle. The returned data must be
   // retained until any engine instance it is passed to has been shut down.
   //