Начата работа над логикой сервера

server/core/utils.js

@@ -0,0 +1,29 @@
+const Promise = require('bluebird');
+const fs = require('fs');
+
+function sleep(ms) {
+    return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+function statPathSync(path) {
+    try {
+        return fs.statSync(path);
+    } catch (ex) {}
+    return false;
+}
+
+function mkDirIfNotExistsSync(path) {
+    console.log(path);
+    let exists = statPathSync(path);
+    if (!exists) {
+        fs.mkdirSync(path, {recursive: true, mode: 0o755});
+    } else if (!exists.isDirectory()) {
+        throw new Error(`Not a directory: ${path}`);
+    }
+}
+
+module.exports = {
+    sleep,
+    statPathSync,
+    mkDirIfNotExistsSync,
+};