Change pub roller bot to push to flutter-pub-roller-bot/flutter.git (#129844)

Fixes https://github.com/flutter/flutter/issues/129744
Part of https://github.com/flutter/flutter/issues/129847

Migrate the packages_autoroller script to push to
flutter-pub-roller-bot/flutter.git, rather than
fluttergithubbot/flutter.git.

.ci.yaml

@@ -243,8 +243,6 @@ targets:
 
   - name: Linux packages_autoroller
     presubmit: false
-    # TODO(fujino): https://github.com/flutter/flutter/issues/129744
-    bringup: true
     recipe: pub_autoroller/pub_autoroller
     timeout: 30
     enabled_branches:

dev/conductor/core/bin/packages_autoroller.dart

@@ -15,8 +15,8 @@ import 'package:process/process.dart';
 
 const String kTokenOption = 'token';
 const String kGithubClient = 'github-client';
-const String kMirrorRemote = 'mirror-remote';
 const String kUpstreamRemote = 'upstream-remote';
+const String kGithubAccountName = 'flutter-pub-roller-bot';
 
 Future<void> main(List<String> args) {
   return run(args);
@@ -39,11 +39,10 @@ Future<void> run(
     help: 'Path to GitHub CLI client. If not provided, it is assumed `gh` is '
         'present on the PATH.',
   );
+  // TODO(fujino): delete after recipe has been migrated to stop passing this
   parser.addOption(
-    kMirrorRemote,
-    help: 'The mirror git remote that the feature branch will be pushed to. '
-        'Required',
-    mandatory: true,
+    'mirror-remote',
+    help: '(Deprecated) this is now a no-op. To change the account, edit this tool.',
   );
   parser.addOption(
     kUpstreamRemote,
@@ -64,7 +63,7 @@ ${parser.usage}
     rethrow;
   }
 
-  final String mirrorUrl = results[kMirrorRemote]! as String;
+  const String mirrorUrl = 'https://github.com/flutter-pub-roller-bot/flutter.git';
   final String upstreamUrl = results[kUpstreamRemote]! as String;
   final String tokenPath = results[kTokenOption]! as String;
   final File tokenFile = fs.file(tokenPath);
@@ -92,6 +91,7 @@ ${parser.usage}
     orgName: _parseOrgName(mirrorUrl),
     token: token,
     processManager: processManager,
+    githubUsername: kGithubAccountName,
   ).roll();
 }
 

dev/conductor/core/lib/src/packages_autoroller.dart

@@ -20,7 +20,7 @@ class PackageAutoroller {
     required this.framework,
     required this.orgName,
     required this.processManager,
-    this.githubUsername = 'fluttergithubbot',
+    required this.githubUsername,
     Stdio? stdio,
   }) {
     this.stdio = stdio ?? VerboseStdio.local();
@@ -111,7 +111,7 @@ This PR was generated by the automated
   Future<bool> updatePackages({
     bool verbose = true,
   }) async {
-    final String author = '$githubUsername <$githubUsername@gmail.com>';
+    final String author = '$githubUsername <$githubUsername@google.com>';
 
     await framework.newBranch(await featureBranchName);
     final io.Process flutterProcess = await framework.streamFlutter(<String>[

dev/conductor/core/test/packages_autoroller_test.dart

@@ -63,6 +63,7 @@ void main() {
       orgName: orgName,
       processManager: processManager,
       stdio: stdio,
+      githubUsername: 'flutter-pub-roller-bot',
     );
   });
 
@@ -199,7 +200,7 @@ void main() {
         'pr',
         'list',
         '--author',
-        'fluttergithubbot',
+        'flutter-pub-roller-bot',
         '--repo',
         'flutter/flutter',
         '--state',
@@ -216,7 +217,7 @@ void main() {
     await controller.stream.drain();
     await rollFuture;
     expect(processManager, hasNoRemainingExpectations);
-    expect(stdio.stdout, contains('fluttergithubbot already has open tool PRs'));
+    expect(stdio.stdout, contains('flutter-pub-roller-bot already has open tool PRs'));
     expect(stdio.stdout, contains(r'[{number: 123}]'));
   });
 
@@ -239,7 +240,7 @@ void main() {
         'pr',
         'list',
         '--author',
-        'fluttergithubbot',
+        'flutter-pub-roller-bot',
         '--repo',
         'flutter/flutter',
         '--state',
@@ -335,7 +336,7 @@ void main() {
         'pr',
         'list',
         '--author',
-        'fluttergithubbot',
+        'flutter-pub-roller-bot',
         '--repo',
         'flutter/flutter',
         '--state',
@@ -427,7 +428,7 @@ void main() {
         'commit',
         '--message',
         'roll packages',
-        '--author="fluttergithubbot <fluttergithubbot@gmail.com>"',
+        '--author="flutter-pub-roller-bot <flutter-pub-roller-bot@google.com>"',
       ]),
       const FakeCommand(command: <String>[
         'git',
@@ -475,12 +476,11 @@ void main() {
 
   group('command argument validations', () {
     const String tokenPath = '/path/to/token';
-    const String mirrorRemote = 'https://githost.com/org/project';
 
     test('validates that file exists at --token option', () async {
       await expectLater(
         () => run(
-          <String>['--token', tokenPath, '--mirror-remote', mirrorRemote],
+          <String>['--token', tokenPath],
           fs: fileSystem,
           processManager: processManager,
         ),
@@ -499,7 +499,7 @@ void main() {
         ..writeAsStringSync('');
       await expectLater(
         () => run(
-          <String>['--token', tokenPath, '--mirror-remote', mirrorRemote],
+          <String>['--token', tokenPath],
           fs: fileSystem,
           processManager: processManager,
         ),