feat: Add upgrade command to Serverpod CLI. (#1988)

Author: vicajilau

tools/serverpod_cli/bin/serverpod_cli.dart

@@ -10,6 +10,7 @@ import 'package:serverpod_cli/src/commands/generate_pubspecs.dart';
 import 'package:serverpod_cli/src/commands/generate.dart';
 import 'package:serverpod_cli/src/commands/language_server.dart';
 import 'package:serverpod_cli/src/commands/create_migration.dart';
+import 'package:serverpod_cli/src/commands/upgrade.dart';
 import 'package:serverpod_cli/src/commands/version.dart';
 import 'package:serverpod_cli/src/generated/version.dart';
 import 'package:serverpod_cli/src/logger/logger.dart';
@@ -65,6 +66,7 @@ ServerpodCommandRunner buildCommandRunner() {
     ..addCommand(LanguageServerCommand())
     ..addCommand(CreateMigrationCommand())
     ..addCommand(CreateRepairMigrationCommand())
+    ..addCommand(UpgradeCommand())
     ..addCommand(VersionCommand());
 }
 

tools/serverpod_cli/lib/src/commands/upgrade.dart

@@ -0,0 +1,33 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:serverpod_cli/src/logger/logger.dart';
+import 'package:serverpod_cli/src/runner/serverpod_command.dart';
+
+import '../generated/version.dart';
+
+class UpgradeCommand extends ServerpodCommand {
+  @override
+  final name = 'upgrade';
+
+  @override
+  final description = 'Upgrade Serverpod to the latest version.';
+
+  @override
+  void run() async {
+    var success = await log.progress('Updating Serverpod Cli...', () async {
+      log.debug('Running `dart pub global activate serverpod_cli`...');
+      var startProcess = await Process.start(
+          'dart', ['pub', 'global', 'activate', 'serverpod_cli']);
+      startProcess.stdout.transform(const Utf8Decoder()).listen(log.debug);
+      startProcess.stderr.transform(const Utf8Decoder()).listen(log.error);
+      return await startProcess.exitCode == 0;
+    });
+
+    if (success) {
+      log.info('Serverpod is up to date: $templateVersion version.');
+    } else {
+      log.info('Failed to update Serverpod.');
+    }
+  }
+}