[mediapipe-task-text] Upgrade native_assets_cli (#35)

* [mediapipe-task-text] Upgrade native_assets_cli

* cleanup

Author: dcharkes

packages/mediapipe-task-text/build.dart

@@ -0,0 +1,97 @@
+import 'dart:io';
+import 'package:native_assets_cli/native_assets_cli.dart';
+import 'package:http/http.dart' as http;
+import 'package:path/path.dart' as path;
+
+import '../sdk_downloads.dart';
+
+late File logFile;
+
+final logs = <(DateTime, String)>[];
+void log(String msg) {
+  logs.add((DateTime.now(), msg));
+  if (!logFile.parent.existsSync()) {
+    logFile.parent.createSync();
+  }
+
+  if (logFile.existsSync()) {
+    logFile.deleteSync();
+  }
+  logFile.createSync();
+  logFile.writeAsStringSync(logs
+      .map<String>((rec) => '[${rec.$1.toIso8601String()}] ${rec.$2}')
+      .toList()
+      .join('\n\n'));
+}
+
+Future<void> main(List<String> args) async {
+  await build(args, (buildConfig, buildOutput) async {
+    logFile = File(
+      path.joinAll([
+        Directory.current.path, // root dir of app using `mediapipe-task-xyz`
+        'build/${buildConfig.dryRun ? "dryrun" : "live-run"}-build-log.txt',
+      ]),
+    );
+
+    log(args.join(' '));
+    final String targetOS = buildConfig.targetOS.toString();
+    log('targetOS: $targetOS');
+
+    log('dir.current: ${Directory.current.absolute.path}');
+
+    // Throw if target runtime is unsupported.
+    if (!sdkDownloadUrls.containsKey(targetOS)) {
+      throw Exception('Unsupported target OS: $targetOS. '
+          'Supported values are: ${sdkDownloadUrls.keys.toSet()}');
+    }
+
+    buildOutput.addDependencies([
+      buildConfig.packageRoot.resolve('build.dart'),
+      buildConfig.packageRoot.resolve('sdk_downloads.dart'),
+    ]);
+
+    final downloadFileLocation = buildConfig.outputDirectory.resolve(
+      buildConfig.targetOS.dylibFileName('text'),
+    );
+    log('downloadFileLocation: $downloadFileLocation');
+    buildOutput.addAsset(
+      NativeCodeAsset(
+        package: 'mediapipe_text',
+        name:
+            'src/io/third_party/mediapipe/generated/mediapipe_text_bindings.dart',
+        linkMode: DynamicLoadingBundled(),
+        os: buildConfig.targetOS,
+        architecture: buildConfig.targetArchitecture,
+        file: downloadFileLocation,
+      ),
+    );
+    if (!buildConfig.dryRun) {
+      final arch = buildConfig.targetArchitecture.toString();
+      final assetUrl = sdkDownloadUrls[targetOS]!['libtext']![arch]!;
+      downloadAsset(assetUrl, downloadFileLocation);
+    }
+  });
+}
+
+Future<void> downloadAsset(String assetUrl, Uri destinationFile) async {
+  final downloadUri = Uri.parse(assetUrl);
+  final downloadedFile = File(destinationFile.toFilePath());
+
+  log('Downloading file from $downloadUri');
+
+  final downloadResponse = await http.get(downloadUri);
+  log('Download response: ${downloadResponse.statusCode}');
+
+  if (downloadResponse.statusCode == 200) {
+    if (downloadedFile.existsSync()) {
+      downloadedFile.deleteSync();
+    }
+    downloadedFile.createSync();
+    log('Saved file to ${downloadedFile.absolute.path}\n');
+    downloadedFile.writeAsBytes(downloadResponse.bodyBytes);
+  } else {
+    log('${downloadResponse.statusCode} :: ${downloadResponse.body}');
+    throw Exception(
+        '${downloadResponse.statusCode} :: ${downloadResponse.body}');
+  }
+}

packages/mediapipe-task-text/hook/build.dart

@@ -24,11 +24,11 @@ dependencies:
   http: ^1.1.0
   logging: ^1.2.0
   mediapipe_core: ^0.0.1
-  native_assets_cli: ^0.3.0
-  native_toolchain_c: ^0.3.0
+  native_assets_cli: ^0.5.4
+  native_toolchain_c: ^0.4.1
   path: ^1.8.3
 
 dev_dependencies:
-  ffigen: ^9.0.1
+  ffigen: ^12.0.0
   flutter_lints: ^2.0.0
   test: ^1.21.0