测试：从vj4的自动迁移脚本（未完成）

build/utils.js

@@ -0,0 +1,28 @@
+const fs = require('fs');
+const path = require('path');
+
+exports.root = (name) => path.resolve(__dirname, '..', name);
+exports.exist = (name) => {
+    try {
+        fs.statSync(exports.root(name));
+    } catch (e) {
+        return false;
+    }
+    return true;
+};
+exports.rmdir = function rmdir(p, recursive = true) {
+    if (!fs.existsSync(p)) return;
+    if (recursive) {
+        fs.readdirSync(p).forEach((file) => {
+            const curPath = `${p}/${file}`;
+            if (fs.statSync(curPath).isDirectory()) rmdir(curPath);
+            else fs.unlinkSync(curPath);
+        });
+    }
+    fs.rmdirSync(p);
+};
+exports.ignoreFailure = function ignoreFailure(func, ...params) {
+    try {
+        func(...params);
+    } catch (e) { } // eslint-disable-line no-empty
+};