feature(distribute) add ability to import config from remote export server

common/datetime.js

@@ -0,0 +1,33 @@
+'use strict';
+
+const shortdate = require('shortdate');
+
+module.exports = (date) => {
+    date = date || new Date();
+    check(date);
+    
+    const timeStr = shorttime(date);
+    const dateStr = shortdate(date);
+    
+    return `${dateStr} ${timeStr}`;
+};
+
+const addZero = (a) => {
+    if (a > 9)
+        return a;
+    
+    return `0${a}`;
+};
+
+function shorttime(date) {
+    const seconds = addZero(date.getSeconds());
+    const minutes = addZero(date.getMinutes());
+    const hours = addZero(date.getHours());
+    
+    return `${hours}:${minutes}:${seconds}`;
+}
+
+function check(date) {
+    if (!(date instanceof Date))
+        throw Error('date should be instanceof Date!');
+}

common/datetime.spec.js

@@ -0,0 +1,54 @@
+'use strict';
+
+const test = require('tape');
+const sinon = require('sinon');
+
+const datetime = require('./datetime');
+
+test('common: datetime', (t) => {
+    const dateStr = 'Fri, 17 Aug 2018 10:56:48';
+    const result = datetime(new Date(dateStr));
+    
+    const expected = '2018.08.17 10:56:48';
+    
+    t.equals(result, expected, 'should equal');
+    t.end();
+});
+
+test('common: datetime: no arg', (t) => {
+    const {Date} = global;
+    
+    let called = false;
+    const myDate = class extends Date {
+        constructor() {
+            super();
+            called = true;
+        }
+    };
+    
+    global.Date = myDate;
+    
+    datetime();
+    
+    global.Date = Date;
+    t.ok(called, 'should call new Date');
+    t.end();
+});
+
+test('common: 0 before number', (t) => {
+    const dateStr = 'Fri, 17 Aug 2018 10:56:08';
+    const result = datetime(new Date(dateStr));
+    
+    const expected = '2018.08.17 10:56:08';
+    
+    t.equals(result, expected, 'should equal');
+    t.end();
+});
+
+test('common: datetime: wrong args', (t) => {
+    const fn = () => datetime({});
+    
+    t.throws(fn, /date should be instanceof Date!/, 'should throw');
+    t.end();
+});
+