misc repo metadata updates (#372)

Author: devoncarew

pkgs/repo_manage/lib/labels_update.dart

@@ -60,6 +60,7 @@ final Set<String> allowList = {
   'cla: yes',
   'dependencies',
   'Epic',
+  'good first issue',
   'meta',
   'P4',
   'S0',

pkgs/repo_manage/lib/src/common.dart

@@ -148,20 +148,30 @@ class RepoInfo {
 
 // These are monorepos, high-traffic repos, or otherwise noteable repos.
 final List<String> noteableRepos = [
-  'dart-lang/build',
+  // The SLO monorepos.
   'dart-lang/core',
+  'dart-lang/labs',
+  'dart-lang/tools',
+
+  // The topic monorepos.
+  'dart-lang/ai',
+  'dart-lang/build',
   'dart-lang/ecosystem',
-  'dart-lang/ffi',
   'dart-lang/http',
   'dart-lang/i18n',
-  'dart-lang/language',
   'dart-lang/native',
-  'dart-lang/pub',
-  'dart-lang/sdk',
   'dart-lang/shelf',
   'dart-lang/test',
-  'dart-lang/tools',
   'dart-lang/webdev',
+
+  // Other main dart-lang repos.
+  'dart-lang/dartdoc',
+  'dart-lang/language',
+  'dart-lang/pub',
+  'dart-lang/sdk',
+  'dart-lang/web',
+
+  // The main flutter repo.
   'flutter/flutter',
   'flutter/packages',
 ];

pkgs/trebuchet/README.md

@@ -8,8 +8,8 @@ This is a tool to move existing packages into monorepos.
 dart run bin/trebuchet.dart \
   --input-name coverage \
   --input-branch-name main \
-  --target-branch-name main \
   --input-path ~/projects/coverage/ \
+  --target-branch-name main \
   --target tools \
   --target-path ~/projects/tools/ \
   --git-filter-repo ~/tools/git-filter-repo \

pkgs/trebuchet/bin/trebuchet.dart

@@ -35,7 +35,7 @@ Future<void> main(List<String> arguments) async {
     )
     ..addOption(
       'target-branch-name',
-      help: 'The name of the main branch on the input repo',
+      help: 'The name of the main branch on the target repo',
       defaultsTo: 'main',
     )
     ..addOption(