1. 10 Sep, 2023 1 commit
    • Daco Harkes's avatar
      Native assets support for MacOS and iOS (#130494) · aa36db1d
      Daco Harkes authored
      Support for FFI calls with `@Native external` functions through Native assets on MacOS and iOS. This enables bundling native code without any build-system boilerplate code.
      
      For more info see:
      
      * https://github.com/flutter/flutter/issues/129757
      
      ### Implementation details for MacOS and iOS.
      
      Dylibs are bundled by (1) making them fat binaries if multiple architectures are targeted, (2) code signing these, and (3) copying them to the frameworks folder. These steps are done manual rather than via CocoaPods. CocoaPods would have done the same steps, but (a) needs the dylibs to be there before the `xcodebuild` invocation (we could trick it, by having a minimal dylib in the place and replace it during the build process, that works), and (b) can't deal with having no dylibs to be bundled (we'd have to bundle a dummy dylib or include some dummy C code in the build file).
      
      The dylibs are build as a new target inside flutter assemble, as that is the moment we know what build-mode and architecture to target.
      
      The mapping from asset id to dylib-path is passed in to every kernel compilation path. The interesting case is hot-restart where the initial kernel file is compiled by the "inner" flutter assemble, while after hot restart the "outer" flutter run compiled kernel file is pushed to the device. Both kernel files need to contain the mapping. The "inner" flutter assemble gets its mapping from the NativeAssets target which builds the native assets. The "outer" flutter run get its mapping from a dry-run invocation. Since this hot restart can be used for multiple target devices (`flutter run -d all`) it contains the mapping for all known targets.
      
      ### Example vs template
      
      The PR includes a new template that uses the new native assets in a package and has an app importing that. Separate discussion in: https://github.com/flutter/flutter/issues/131209.
      
      ### Tests
      
      This PR adds new tests to cover the various use cases.
      
      * dev/devicelab/bin/tasks/native_assets_ios.dart
        * Runs an example app with native assets in all build modes, doing hot reload and hot restart in debug mode.
      * dev/devicelab/bin/tasks/native_assets_ios_simulator.dart
        * Runs an example app with native assets, doing hot reload and hot restart.
      * packages/flutter_tools/test/integration.shard/native_assets_test.dart
        * Runs (incl hot reload/hot restart), builds, builds frameworks for iOS, MacOS and flutter-tester.
      * packages/flutter_tools/test/general.shard/build_system/targets/native_assets_test.dart
        * Unit tests the new Target in the backend.
      * packages/flutter_tools/test/general.shard/ios/native_assets_test.dart
      * packages/flutter_tools/test/general.shard/macos/native_assets_test.dart
        * Unit tests the native assets being packaged on a iOS/MacOS build.
      
      It also extends various existing tests:
      
      * dev/devicelab/bin/tasks/module_test_ios.dart
         * Exercises the add2app scenario.
      * packages/flutter_tools/test/general.shard/features_test.dart
         * Unit test the new feature flag.
      aa36db1d
  2. 04 Oct, 2018 1 commit
    • Greg Spencer's avatar
      Rename module --> application in flutter create command. (#22565) · 9f23866a
      Greg Spencer authored
      This renames the "module" template to the "application" template, and makes "application" the default. The existing "app" template is now deprecated.
      
      flutter create also now recognizes the type of project in an existing directory, and is able to recreate it without having the template type explicitly specified (although you can still do that). It does this now by first looking in the .metadata file for the new project_type field, and if it doesn't find that, then it looks at the directory structure. Also, the .metadata file is now overwritten even on an existing directory so that 1) the project_type can be added to legacy projects, and 2) the version of Flutter that updated the project last is updated.
      
      I also cleaned up a bunch of things in create_test.dart, added many more tests, and added an example test to the test/ directory in the generated output of the application template.
      
      Fixes #22530
      Fixes #22344
      9f23866a
  3. 03 Nov, 2017 1 commit