feat(CI): CHANGELOG.mdの追記個所をチェックするCIを追加 (#12963)

* feat(CI): CHANGELOG.mdの追記個所をチェックするCIを追加

* fix

* remove strategy

* fix

* fix

scripts/changelog-checker/src/index.ts

@@ -0,0 +1,33 @@
+import * as process from 'process';
+import * as fs from 'fs';
+import { parseChangeLog } from './parser.js';
+import { checkNewRelease, checkNewTopic } from './checker.js';
+
+function abort(message?: string) {
+	if (message) {
+		console.error(message);
+	}
+
+	process.exit(1);
+}
+
+function main() {
+	if (!fs.existsSync('./CHANGELOG-base.md') || !fs.existsSync('./CHANGELOG-head.md')) {
+		console.error('CHANGELOG-base.md or CHANGELOG-head.md is missing.');
+		return;
+	}
+
+	const base = parseChangeLog('./CHANGELOG-base.md');
+	const head = parseChangeLog('./CHANGELOG-head.md');
+
+	const result = (base.length < head.length)
+		? checkNewRelease(base, head)
+		: checkNewTopic(base, head);
+
+	if (!result.success) {
+		abort(result.message);
+		return;
+	}
+}
+
+main();