build: use mjs instead of mts files for ng-dev configuration

Author: josephperrott

.ng-dev/commit-message.mts renamed to .ng-dev/commit-message.mjs

@@ -1,11 +1,14 @@
-import {CommitMessageConfig} from '../ng-dev/commit-message/config.js';
-
 /** Build a set of scopes for a package. */
-function buildScopesFor(pkg: string, subpkgs: string[]) {
-  return [pkg, ...subpkgs.map((subpkg: string) => `${pkg}/${subpkg}`)];
+function buildScopesFor(pkg, subpkgs) {
+  return [pkg, ...subpkgs.map((subpkg) => `${pkg}/${subpkg}`)];
 }
 
-export const commitMessage: CommitMessageConfig = {
+/**
+ * The configuration for `ng-dev commit-message` commands.
+ *
+ * @type { import("../ng-dev/index.js").CommitMessageConfig }
+ */
+export const commitMessage = {
   maxLineLength: Infinity,
   minBodyLength: 0,
   scopes: [

.ng-dev/config.mts renamed to .ng-dev/config.mjs

@@ -0,0 +1,9 @@
+/**
+ * Configuration for the `ng-dev format` command.
+ *
+ * @type { import("../ng-dev/index.js").FormatConfig }
+ */
+export const format = {
+  'prettier': true,
+  'buildifier': true,
+};

.ng-dev/format.mjs

@@ -0,0 +1,12 @@
+/**
+ * Github configuration for the `ng-dev` command. This repository is used as
+ * remote for the merge script and other utilities like `ng-dev pr rebase`.
+ *
+ * @type { import("../ng-dev/index.js").GithubConfig }
+ */
+export const github = {
+  owner: 'angular',
+  name: 'dev-infra',
+  mainBranchName: 'main',
+  useNgDevAuthService: true,
+};

.ng-dev/format.mts

@@ -1,7 +1,10 @@
-import {PullRequestConfig} from '../ng-dev/pr/config/index.js';
-
-/** Configuration for interacting with pull requests in the repo. */
-export const pullRequest: PullRequestConfig = {
+/**
+ * Configuration for the merge tool in `ng-dev`. This sets up the labels which
+ * are respected by the merge script (e.g. the target labels).
+ *
+ * @type { import("../ng-dev/index.js").PullRequestConfig }
+ */
+export const pullRequest = {
   githubApiMerge: {
     default: 'auto',
     labels: [{pattern: 'merge: squash commits', method: 'squash'}],