[native_assets_cli] Move non-build.dart code to package:native_assets_builder

.github/workflows/health.yaml

@@ -8,7 +8,7 @@ jobs:
     uses: dart-lang/ecosystem/.github/workflows/health.yaml@main
     with:
       coverage_web: false
-      checks: "version,changelog,license,do-not-submit,breaking"
+      checks: "version,changelog,license,do-not-submit,breaking,coverage"
       use-flutter: true
       sdk: master
     permissions:

pkgs/native_assets_builder/dart_test.yaml

@@ -1,2 +1,3 @@
 paths:
   - test/build_runner/
+  - test/model/

pkgs/native_assets_builder/lib/native_assets_builder.dart

@@ -3,4 +3,5 @@
 // BSD-style license that can be found in the LICENSE file.
 
 export 'package:native_assets_builder/src/build_runner/build_runner.dart';
+export 'package:native_assets_builder/src/model/asset.dart';
 export 'package:native_assets_builder/src/package_layout/package_layout.dart';

pkgs/native_assets_builder/lib/src/model/asset.dart

@@ -0,0 +1,62 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:native_assets_cli/native_assets_cli.dart';
+
+import '../utils/yaml.dart';
+
+extension on AssetPath {}
+
+extension AssetIterable on Iterable<Asset> {
+  Iterable<Asset> whereLinkMode(LinkMode linkMode) =>
+      where((e) => e.linkMode == linkMode);
+
+  Map<Target, List<Asset>> get assetsPerTarget {
+    final result = <Target, List<Asset>>{};
+    for (final asset in this) {
+      final assets = result[asset.target] ?? [];
+      assets.add(asset);
+      result[asset.target] = assets;
+    }
+    return result;
+  }
+
+  Map<String, Map<String, List<String>>> toDartConst() => {
+        for (final entry in assetsPerTarget.entries)
+          entry.key.toString(): _combineMaps(entry.value
+              .map((e) => {
+                    e.id: _toDartConst(e.path),
+                  })
+              .toList())
+      };
+
+  Map<Object, Object> toNativeAssetsFileEncoding() => {
+        'format-version': [1, 0, 0],
+        'native-assets': toDartConst(),
+      };
+
+  String toNativeAssetsFile() => yamlEncode(toNativeAssetsFileEncoding());
+}
+
+List<String> _toDartConst(AssetPath path) {
+  switch (path) {
+    case AssetAbsolutePath _:
+      return ['absolute', path.uri.toFilePath()];
+    case AssetSystemPath _:
+      return ['system', path.uri.toFilePath()];
+    case AssetInProcess _:
+      return ['process'];
+    default:
+      assert(path is AssetInExecutable);
+      return ['executable'];
+  }
+}
+
+Map<X, Y> _combineMaps<X, Y>(Iterable<Map<X, Y>> maps) {
+  final result = <X, Y>{};
+  for (final map in maps) {
+    result.addAll(map);
+  }
+  return result;
+}

pkgs/native_assets_builder/lib/src/utils/yaml.dart

@@ -0,0 +1,18 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:yaml/yaml.dart';
+import 'package:yaml_edit/yaml_edit.dart';
+
+String yamlEncode(Object yamlEncoding) {
+  final editor = YamlEditor('');
+  editor.update(
+    [],
+    wrapAsYamlNode(
+      yamlEncoding,
+      collectionStyle: CollectionStyle.BLOCK,
+    ),
+  );
+  return editor.toString();
+}

pkgs/native_assets_builder/pubspec.yaml

@@ -12,9 +12,10 @@ dependencies:
   logging: ^1.2.0
   native_assets_cli: ^0.3.2
   package_config: ^2.1.0
+  yaml: ^3.1.2
+  yaml_edit: ^2.1.0
 
 dev_dependencies:
   dart_flutter_team_lints: ^2.1.1
   file_testing: ^3.0.0
   test: ^1.24.3
-  yaml: ^3.1.2

pkgs/native_assets_builder/test/model/asset_test.dart

@@ -0,0 +1,90 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// ignore_for_file: undefined_hidden_name
+
+import 'package:native_assets_builder/src/model/asset.dart';
+import 'package:native_assets_cli/native_assets_cli.dart'
+    hide AssetIterable, AssetRelativePath;
+import 'package:test/test.dart';
+
+void main() {
+  final fooUri = Uri.file('path/to/libfoo.so');
+  final foo3Uri = Uri(path: 'libfoo3.so');
+  final barUri = Uri(path: 'path/to/libbar.a');
+  final blaUri = Uri(path: 'path/with spaces/bla.dll');
+  final assets = [
+    Asset(
+      id: 'foo',
+      path: AssetAbsolutePath(fooUri),
+      target: Target.androidX64,
+      linkMode: LinkMode.dynamic,
+    ),
+    Asset(
+      id: 'foo3',
+      path: AssetSystemPath(foo3Uri),
+      target: Target.androidX64,
+      linkMode: LinkMode.dynamic,
+    ),
+    Asset(
+      id: 'foo4',
+      path: AssetInExecutable(),
+      target: Target.androidX64,
+      linkMode: LinkMode.dynamic,
+    ),
+    Asset(
+      id: 'foo5',
+      path: AssetInProcess(),
+      target: Target.androidX64,
+      linkMode: LinkMode.dynamic,
+    ),
+    Asset(
+      id: 'bar',
+      path: AssetAbsolutePath(barUri),
+      target: Target.linuxArm64,
+      linkMode: LinkMode.static,
+    ),
+    Asset(
+      id: 'bla',
+      path: AssetAbsolutePath(blaUri),
+      target: Target.windowsX64,
+      linkMode: LinkMode.dynamic,
+    ),
+  ];
+
+  final assetsDartEncoding = '''format-version:
+  - 1
+  - 0
+  - 0
+native-assets:
+  android_x64:
+    foo:
+      - absolute
+      - ${fooUri.toFilePath()}
+    foo3:
+      - system
+      - ${foo3Uri.toFilePath()}
+    foo4:
+      - executable
+    foo5:
+      - process
+  linux_arm64:
+    bar:
+      - absolute
+      - ${barUri.toFilePath()}
+  windows_x64:
+    bla:
+      - absolute
+      - ${blaUri.toFilePath()}''';
+
+  test('asset yaml', () async {
+    final fileContents = assets.toNativeAssetsFile();
+    expect(fileContents, assetsDartEncoding);
+  });
+
+  test('List<Asset> whereLinkMode', () async {
+    final assets2 = assets.whereLinkMode(LinkMode.dynamic);
+    expect(assets2.length, 5);
+  });
+}

pkgs/native_assets_cli/CHANGELOG.md

@@ -1,7 +1,10 @@
-## 0.3.3-wip
+## 0.4.0-wip
 
 - Added [example/use_dart_api/](example/use_dart_api/) detailing how to use
   `dart_api_dl.h` from the Dart SDK in native code.
+- **Breaking change** Moved code not used in `build.dart` to
+  `package:native_assets_builder`.
+
 
 ## 0.3.2