RDART-999: Fix flutter test dlopen

CHANGELOG.md

@@ -5,6 +5,7 @@
 
 ### Fixed
 * Fixed an issue that would cause macOS apps to be rejected with `Invalid Code Signing Entitlements` error. (Issue [#1679](https://github.com/realm/realm-dart/issues/1679))
+* Fixed a regression that makes it inconvenient to run unit tests using realm. (Issue [#1619](https://github.com/realm/realm-dart/issues/1619))
 
 ### Compatibility
 * Realm Studio: 15.0.0 or later.

packages/realm_dart/lib/src/cli/common/target_os_type.dart

@@ -8,24 +8,19 @@ enum TargetOsType {
   ios,
   linux,
   macos,
-  windows,
+  windows;
+
+  bool get isDesktop => [TargetOsType.linux, TargetOsType.macos, TargetOsType.windows].contains(this);
 }
 
 // Cannot use Dart 2.17 enhanced enums, due to an issue with build_cli :-/
 enum Flavor {
   flutter,
-  dart,
+  dart;
 }
 
 extension FlavorEx on Flavor {
-  String get packageName {
-    switch (this) {
-      case Flavor.dart:
-        return 'realm_dart';
-      case Flavor.flutter:
-        return 'realm';
-    }
-  }
+  String get packageName => switch (this) { Flavor.dart => 'realm_dart', Flavor.flutter => 'realm' };
 }
 
 extension StringEx on String {

packages/realm_dart/lib/src/cli/install/install_command.dart

@@ -25,26 +25,34 @@ class InstallCommand extends Command<void> {
 
   late Options options;
 
-  bool get debug => options.debug;
+  late Pubspec pubspec;
+  late final debug = options.debug;
+  late final flavor = options.flavor!;
+  late final force = options.force; // not used!?!
+  late final targetOsType = options.targetOsType!;
 
   InstallCommand() {
-    populateOptionsParser(argParser);
+    pubspec = parsePubspec(File('pubspec.yaml'));
+    final defaultFlavor = pubspec.dependencies['flutter'] == null ? Flavor.dart : Flavor.flutter; // default depends on project type
+    populateOptionsParser(
+      argParser,
+      targetOsTypeDefaultOverride: Platform.operatingSystem.asTargetOsType,
+      flavorDefaultOverride: defaultFlavor,
+    );
   }
 
-  Directory getBinaryPath(Directory realmPackagePath, {required bool isFlutter}) {
-    if (isFlutter) {
-      final root = realmPackagePath.path;
-      return Directory(switch (options.targetOsType) {
-        TargetOsType.android => path.join(root, 'android', 'src', 'main', 'cpp', 'lib'),
-        TargetOsType.ios => path.join(root, 'ios'),
-        TargetOsType.macos => path.join(root, 'macos'),
-        TargetOsType.linux => path.join(root, 'linux', 'binary', 'linux'),
-        TargetOsType.windows => path.join(root, 'windows', 'binary', 'windows'),
-        _ => throw Exception('Unsupported target OS type for Flutter: ${options.targetOsType}')
-      });
-    }
-    // TODO: Should binaries not go into package also for Dart?
-    return Directory(path.join(Directory.current.absolute.path, 'binary', options.targetOsType!.name));
+  Directory getBinaryPath(Directory realmPackagePath, Flavor flavor) {
+    final root = realmPackagePath.path;
+    return switch (flavor) {
+      Flavor.dart => Directory(path.join(root, 'binary', targetOsType.name)),
+      Flavor.flutter => Directory(switch (targetOsType) {
+          TargetOsType.android => path.join(root, 'android', 'src', 'main', 'cpp', 'lib'),
+          TargetOsType.ios => path.join(root, 'ios'),
+          TargetOsType.macos => path.join(root, 'macos'),
+          TargetOsType.linux => path.join(root, 'linux', 'binary', 'linux'),
+          TargetOsType.windows => path.join(root, 'windows', 'binary', 'windows'),
+        }),
+    };
   }
 
   Future<bool> shouldSkipDownload(String binariesPath, String expectedVersion) async {
@@ -105,31 +113,29 @@ class InstallCommand extends Command<void> {
     if (packageConfig == null) {
       abort('Run `dart pub get`');
     }
-    final package = packageConfig.packages.where((p) => p.name == name).singleOrNull;
+    final package = packageConfig[name];
     if (package == null) {
       abort('$name package not found in dependencies. Add $name package to your pubspec.yaml');
     }
     return Directory.fromUri(package.root);
   }
 
-  Future<Pubspec> parsePubspec(File file) async {
+  Pubspec parsePubspec(File file) {
     try {
-      return Pubspec.parse(await file.readAsString(), sourceUrl: file.uri);
-    } on Exception catch (e) {
-      throw Exception('Error parsing package pubspec at ${file.parent}. Error $e');
+      return Pubspec.parse(file.readAsStringSync(), sourceUrl: file.uri);
+    } catch (e) {
+      abort('Error parsing package pubspec at ${file.parent}. Error $e');
     }
   }
 
   @override
   FutureOr<void> run() async {
-    final pubspec = await parsePubspec(File('pubspec.yaml'));
-    final flavor = pubspec.dependencies['flutter'] == null ? Flavor.dart : Flavor.flutter;
-
     options = parseOptionsResult(argResults!);
-    validateOptions(flavor);
 
     final flavorName = flavor.packageName;
     final realmDependency = pubspec.dependencyOverrides[flavorName] ?? pubspec.dependencies[flavorName];
+    print(pubspec.dependencyOverrides.values.join('\n'));
+    print(realmDependency);
     if (realmDependency is PathDependency) {
       print('Path dependency for $flavorName found. Skipping install of native lib (assuming local development)');
       return;
@@ -140,26 +146,16 @@ class InstallCommand extends Command<void> {
     }
 
     final realmPackagePath = await getPackagePath(flavorName);
-    final realmPubspec = await parsePubspec(File(path.join(realmPackagePath.path, "pubspec.yaml")));
+    final realmPubspec = parsePubspec(File(path.join(realmPackagePath.path, "pubspec.yaml")));
 
-    final binaryPath = getBinaryPath(realmPackagePath, isFlutter: flavor == Flavor.flutter);
+    final binaryPath = getBinaryPath(realmPackagePath, flavor);
     print(binaryPath);
-    final archiveName = '${options.targetOsType!.name}.tar.gz';
+    final archiveName = '${targetOsType.name}.tar.gz';
     await downloadAndExtractBinaries(binaryPath, realmPubspec.version!, archiveName);
 
     print('Realm install command finished.');
   }
 
-  void validateOptions(Flavor flavor) {
-    final targetOs = flavor == Flavor.dart ? getTargetOS() : options.targetOsType;
-    if (targetOs == null) {
-      abort('Target OS not specified');
-    }
-    options.targetOsType = targetOs;
-  }
-
-  TargetOsType getTargetOS() => Platform.operatingSystem.asTargetOsType ?? (throw UnsupportedError('Unsupported platform ${Platform.operatingSystem}'));
-
   Never abort(String error) {
     print(error);
     print(usage);

packages/realm_dart/lib/src/cli/install/options.dart

@@ -8,7 +8,10 @@ part 'options.g.dart';
 
 @CliOptions()
 class Options {
-  @CliOption(help: 'The target OS to install binaries for.', abbr: 't')
+  @CliOption(help: 'The flavor to install binaries for.', abbr: 'f', provideDefaultToOverride: true)
+  Flavor? flavor;
+
+  @CliOption(help: 'The target OS to install binaries for.', abbr: 't', provideDefaultToOverride: true)
   TargetOsType? targetOsType;
 
   // use to debug install command
@@ -23,6 +26,9 @@ class Options {
 
 String get usage => _$parserForOptions.usage;
 
-ArgParser populateOptionsParser(ArgParser p) => _$populateOptionsParser(p);
+ArgParser populateOptionsParser(ArgParser parser, {
+  TargetOsType? targetOsTypeDefaultOverride,
+  Flavor? flavorDefaultOverride,
+}) => _$populateOptionsParser(parser, targetOsTypeDefaultOverride: targetOsTypeDefaultOverride, flavorDefaultOverride: flavorDefaultOverride);
 
 Options parseOptionsResult(ArgResults results) => _$parseOptionsResult(results);