feat(tools): check-skin 独立校验 CLI

脱离构建即可自检 override, 秒级反馈; 有错退出码 1 并逐条指出
子游戏名+文件路径+原因(第二准则: 错误早暴露、可定位)。

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

cocoscreator_projects/scripts/check-skin.mjs

@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+import { join } from 'node:path';
+import { existsSync } from 'node:fs';
+import { pathToFileURL } from 'node:url';
+import { FRAMEWORK_UI_DIR, GAMES_DIR, gameOverrideDir } from './lib/paths.mjs';
+import { listAssets, validateOverrides } from './lib/skin.mjs';
+
+/** 校验某子游戏的皮肤覆盖。opts 可注入路径用于测试。 */
+export function checkSkin(gameName, opts = {}) {
+  const gamesDir = opts.gamesDir ?? GAMES_DIR;
+  const frameworkUiDir = opts.frameworkUiDir ?? FRAMEWORK_UI_DIR;
+
+  const projectDir = join(gamesDir, gameName);
+  if (!existsSync(projectDir)) {
+    throw new Error(`找不到子游戏工程：${projectDir}`);
+  }
+  // override 目录不存在 = 该子游戏不换肤，合法
+  const { matched, errors } = validateOverrides(frameworkUiDir, gameOverrideDir(projectDir));
+  return { matched, errors, frameworkTotal: listAssets(frameworkUiDir).length };
+}
+
+// CLI 入口：有错误则退出码 1
+if (import.meta.url === pathToFileURL(process.argv[1]).href) {
+  const name = process.argv[2];
+  if (!name) {
+    console.error('用法: npm run check-skin <game>');
+    process.exit(1);
+  }
+  const { matched, errors, frameworkTotal } = checkSkin(name);
+  console.log(`皮肤命中 ${matched.length} 处，框架可覆盖资源共 ${frameworkTotal} 个`);
+  if (errors.length === 0) {
+    console.log('OK: override 全部合法。');
+    process.exit(0);
+  }
+  console.error(`\n发现 ${errors.length} 处问题（子游戏 ${name}）：`);
+  for (const e of errors) {
+    console.error(`  [${e.code}] ${e.path}\n      ${e.message}`);
+  }
+  process.exit(1);
+}

cocoscreator_projects/scripts/test/check-skin.test.mjs

@@ -0,0 +1,85 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { join } from 'node:path';
+import { mkdirSync, writeFileSync, rmSync, mkdtempSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import { deflateSync } from 'node:zlib';
+import { checkSkin } from '../check-skin.mjs';
+
+function crc32(buf) {
+  let c = ~0;
+  for (const x of buf) { c ^= x; for (let i = 0; i < 8; i++) c = (c >>> 1) ^ (0xEDB88320 & -(c & 1)); }
+  return ~c >>> 0;
+}
+function chunk(type, data) {
+  const len = Buffer.alloc(4); len.writeUInt32BE(data.length);
+  const td = Buffer.concat([Buffer.from(type, 'ascii'), data]);
+  const c = Buffer.alloc(4); c.writeUInt32BE(crc32(td));
+  return Buffer.concat([len, td, c]);
+}
+function makePng(w, h) {
+  const ihdr = Buffer.alloc(13);
+  ihdr.writeUInt32BE(w, 0); ihdr.writeUInt32BE(h, 4); ihdr[8] = 8; ihdr[9] = 2;
+  const raw = Buffer.alloc(h * (1 + w * 3));
+  return Buffer.concat([
+    Buffer.from([137, 80, 78, 71, 13, 10, 26, 10]),
+    chunk('IHDR', ihdr), chunk('IDAT', deflateSync(raw)), chunk('IEND', Buffer.alloc(0)),
+  ]);
+}
+function put(dir, rel, content) {
+  const p = join(dir, ...rel.split('/'));
+  mkdirSync(join(p, '..'), { recursive: true });
+  writeFileSync(p, content);
+}
+
+function scaffold() {
+  const root = mkdtempSync(join(tmpdir(), 'youle-checkskin-'));
+  const frameworkUiDir = join(root, 'ui');
+  const gamesDir = join(root, 'games');
+  mkdirSync(frameworkUiDir, { recursive: true });
+  mkdirSync(join(gamesDir, 'demo', 'assets', 'game', 'override'), { recursive: true });
+  put(frameworkUiDir, 'atlas-hall/btn.png', makePng(64, 64));
+  put(frameworkUiDir, 'atlas-hall/bg.png', makePng(64, 64));
+  return { root, frameworkUiDir, gamesDir, overrideDir: join(gamesDir, 'demo', 'assets', 'game', 'override') };
+}
+
+test('checkSkin 统计命中数与框架资源总数', () => {
+  const s = scaffold();
+  try {
+    put(s.overrideDir, 'atlas-hall/btn.png', makePng(64, 64));
+    const r = checkSkin('demo', { gamesDir: s.gamesDir, frameworkUiDir: s.frameworkUiDir });
+    assert.deepEqual(r.errors, []);
+    assert.deepEqual(r.matched, ['atlas-hall/btn.png']);
+    assert.equal(r.frameworkTotal, 2);
+  } finally { rmSync(s.root, { recursive: true, force: true }); }
+});
+
+test('checkSkin 报出孤儿 override', () => {
+  const s = scaffold();
+  try {
+    put(s.overrideDir, 'atlas-hall/nope.png', makePng(64, 64));
+    const r = checkSkin('demo', { gamesDir: s.gamesDir, frameworkUiDir: s.frameworkUiDir });
+    assert.equal(r.errors.length, 1);
+    assert.equal(r.errors[0].code, 'orphan');
+  } finally { rmSync(s.root, { recursive: true, force: true }); }
+});
+
+test('checkSkin 对不存在的子游戏抛错', () => {
+  const s = scaffold();
+  try {
+    assert.throws(
+      () => checkSkin('nosuch', { gamesDir: s.gamesDir, frameworkUiDir: s.frameworkUiDir }),
+      /找不到子游戏工程/,
+    );
+  } finally { rmSync(s.root, { recursive: true, force: true }); }
+});
+
+test('checkSkin 对没有 override 目录的子游戏返回零命中而非报错', () => {
+  const s = scaffold();
+  try {
+    rmSync(s.overrideDir, { recursive: true, force: true });
+    const r = checkSkin('demo', { gamesDir: s.gamesDir, frameworkUiDir: s.frameworkUiDir });
+    assert.deepEqual(r.matched, []);
+    assert.deepEqual(r.errors, []);
+  } finally { rmSync(s.root, { recursive: true, force: true }); }
+});