Add sz exec command.

tools/sz_repo_cli/lib/src/commands/commands.dart

@@ -10,6 +10,7 @@ export 'src/analyze_command.dart' show AnalyzeCommand;
 export 'src/deploy_command.dart';
 export 'src/deploy_web_app_command.dart';
 export 'src/do_stuff_command.dart';
+export 'src/exec_command.dart';
 export 'src/fix_comment_spacing_command.dart' show FixCommentSpacingCommand;
 export 'src/pub_command.dart';
 export 'src/pub_get_command.dart' show PubGetCommand;

tools/sz_repo_cli/lib/src/commands/src/exec_command.dart

@@ -0,0 +1,68 @@
+// Copyright (c) 2022 Sharezone UG (haftungsbeschränkt)
+// Licensed under the EUPL-1.2-or-later.
+//
+// You may obtain a copy of the Licence at:
+// https://joinup.ec.europa.eu/software/page/eupl
+//
+// SPDX-License-Identifier: EUPL-1.2
+
+import 'dart:async';
+
+import 'package:sz_repo_cli/src/common/common.dart';
+
+class ExecCommand extends ConcurrentCommand {
+  ExecCommand(super.processRunner, super.repo) {
+    argParser
+      ..addFlag('onlyFlutter',
+          help: 'Only run the command for Flutter packages.', defaultsTo: false)
+      ..addFlag('onlyDart',
+          help: 'Only run the command for Dart packages.', defaultsTo: false);
+  }
+
+  @override
+  final String name = 'exec';
+
+  @override
+  final String description = 'Runs a given command for all/multiple packages.';
+
+  @override
+  Duration get defaultPackageTimeout => const Duration(minutes: 5);
+
+  bool get onlyFlutter => argResults!['onlyFlutter'] as bool;
+  bool get onlyDart => argResults!['onlyDart'] as bool;
+
+  @override
+  Stream<Package> get packagesToProcess {
+    List<bool Function(Package)> testFuncs = [];
+    if (onlyDart) testFuncs.add((package) => package.isPureDartPackage);
+    if (onlyFlutter) testFuncs.add((package) => package.isFlutterPackage);
+
+    return super.packagesToProcess.where((event) {
+      for (var testFunc in testFuncs) {
+        if (testFunc(event)) {
+          continue;
+        } else {
+          return false;
+        }
+      }
+      return true;
+    });
+  }
+
+  @override
+  Future<void> runSetup() async {
+    if (argResults!.rest.isEmpty) {
+      throw ArgumentError(
+          'No command given. Please provide a command like this:\n'
+          'sz_repo_cli exec --onlyFlutter -- fvm dart fix --apply');
+    }
+  }
+
+  @override
+  Future<void> runTaskForPackage(Package package) async {
+    await processRunner.run(
+      argResults!.rest,
+      workingDirectory: package.location,
+    );
+  }
+}

tools/sz_repo_cli/lib/src/main.dart

@@ -54,6 +54,7 @@ Future<void> main(List<String> args) async {
     ..addCommand(AnalyzeCommand(processRunner, repo))
     ..addCommand(TestCommand(processRunner, repo))
     ..addCommand(FormatCommand(processRunner, repo))
+    ..addCommand(ExecCommand(processRunner, repo))
     ..addCommand(DoStuffCommand(repo))
     ..addCommand(FixCommentSpacingCommand(repo))
     ..addCommand(