chore: clean up macOS preview log output (#2823)

packages/shorebird_cli/lib/src/commands/preview_command.dart

@@ -550,8 +550,37 @@ This is only applicable when previewing Android releases.''',
     final logs = await open.newApplication(path: appDirectory.path);
     final completer = Completer<void>();
 
+    // Filter out extra noise from the logs.
+    final logFilters = [
+      RegExp(r'\[com\.apple.*\]'),
+      RegExp(r'\(RunningBoardServices\)'),
+      RegExp(r'\(CoreFoundation\)'),
+      RegExp(r'\(TCC\)'),
+      RegExp(r'\(Metal\)'),
+      RegExp('^Timestamp'),
+      RegExp('^Filtering the log data'),
+    ];
+
+    // Removes the log prefix from the log line.
+    // Example log line:
+    // ignore: lines_longer_than_80_chars
+    // 2025-01-31 09:53:22.889 Df macos_sandbox[22535:1d268] [dev.shorebird:updater::cache::patch_manager] [shorebird] No public key provided, skipping signature verification
+    final prefixRegex = RegExp(
+      r'^[\d-]+\W+[\d:\.]+\W+\w+\W+\w+\[[\da-f]+:[\da-f]+\]',
+    );
+    String removeLogPrefix(String line) {
+      return line.trim().replaceFirst(prefixRegex, '').trim();
+    }
+
     logs.listen(
-      (log) => logger.info(utf8.decode(log)),
+      (log) {
+        final logLine = utf8.decode(log);
+        if (logFilters.any((filter) => filter.hasMatch(logLine))) {
+          return;
+        }
+
+        logger.info(removeLogPrefix(logLine));
+      },
       onDone: completer.complete,
     );
 

packages/shorebird_cli/test/src/commands/preview_command_test.dart

@@ -1,3 +1,4 @@
+// cspell:words libinfo networkd
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io' hide Platform;
@@ -2146,6 +2147,46 @@ channel: ${DeploymentTrack.staging.channel}
           verify(() => logger.info('hello world')).called(1);
         });
       });
+
+      group('log output', () {
+        final rawLogOutput = '''
+2025-01-31 10:15:29.807 Df macos_sandbox[33557:2cc3d] [com.apple.network:] networkd_settings_read_from_file initialized networkd settings by reading plist directly
+
+2025-01-31 10:15:29.807 Df macos_sandbox[33557:2cc3d] [com.apple.network:path] nw_path_libinfo_path_check [5E11C960-BB0A-456A-8024-620DAB6CCF17 Hostname#941210b4:0 tcp, legacy-socket, attribution: developer]
+        libinfo check path: satisfied (Path is satisfied), interface: en0, ipv4, dns
+
+2025-01-31 10:15:29.808 Df macos_sandbox[33557:2cc12] [dev.shorebird:updater::updater] [shorebird] Reporting successful launch.
+'''
+            .split('\n');
+
+        setUp(() {
+          setupMacosShorebirdYaml();
+          when(() => open.newApplication(path: any(named: 'path'))).thenAnswer(
+            (_) async => Stream.fromIterable(rawLogOutput.map(utf8.encode)),
+          );
+        });
+
+        test('removes noisy lines from log output', () async {
+          final result = await runWithOverrides(command.run);
+          expect(result, equals(ExitCode.success.code));
+
+          verify(
+            () => logger.info(
+              '''[dev.shorebird:updater::updater] [shorebird] Reporting successful launch.''',
+            ),
+          ).called(1);
+          verifyNever(
+            () => logger.info(
+              any(that: contains('networkd_settings_read_from_file')),
+            ),
+          );
+          verifyNever(
+            () => logger.info(
+              any(that: contains('nw_path_libinfo_path_check')),
+            ),
+          );
+        });
+      });
     });
 
     group('windows', () {