feat: migrate to moment from date-fns, fix ls format

Date-fns is great, but too early for use

package.json

@@ -47,9 +47,9 @@
   },
   "dependencies": {
     "bunyan": "^1.8.9",
-    "date-fns": "^1.28.2",
     "lodash": "^4.17.4",
     "minimist-string": "^1.0.2",
+    "moment": "^2.18.1",
     "uuid": "^3.0.1",
     "when": "^3.7.8"
   },

src/commands/registration/mdtm.js

@@ -1,5 +1,5 @@
 const when = require('when');
-const format = require('date-fns/format');
+const moment = require('moment');
 
 module.exports = {
   directive: 'MDTM',
@@ -9,7 +9,7 @@ module.exports = {
 
     return when.try(this.fs.get.bind(this.fs), command._[1])
     .then(fileStat => {
-      const modificationTime = format(fileStat.mtime, 'YYYYMMDDHHmmss.SSS');
+      const modificationTime = moment.utc(fileStat.mtime).format('YYYYMMDDHHmmss.SSS');
       return this.reply(213, modificationTime);
     })
     .catch(err => {

src/helpers/file-stat.js

@@ -1,5 +1,5 @@
 const _ = require('lodash');
-const dateFns = require('date-fns');
+const moment = require('moment');
 const errors = require('../errors');
 
 module.exports = function (fileStat, format = 'ls') {
@@ -16,6 +16,10 @@ module.exports = function (fileStat, format = 'ls') {
 };
 
 function ls(fileStat) {
+  const now = moment.utc();
+  const mtime = moment.utc(new Date(fileStat.mtime));
+  const dateFormat = now.diff(mtime, 'months') < 6 ? 'MMM DD HH:mm' : 'MMM DD  YYYY';
+
   return [
     fileStat.mode !== null
       ? [
@@ -35,7 +39,7 @@ function ls(fileStat) {
     fileStat.uid,
     fileStat.gid,
     _.padStart(fileStat.size, 12),
-    _.padStart(dateFns.format(fileStat.mtime, 'MMM DD HH:mm'), 12),
+    _.padStart(mtime.format(dateFormat), 12),
     fileStat.name
   ].join(' ');
 }
@@ -44,7 +48,7 @@ function ep(fileStat) {
   const facts = [
     fileStat.dev && fileStat.ino ? `i${fileStat.dev.toString(16)}.${fileStat.ino.toString(16)}` : null,
     fileStat.size ? `s${fileStat.size}` : null,
-    fileStat.mtime ? `m${dateFns.format(dateFns.parse(fileStat.mtime), 'X')}` : null,
+    fileStat.mtime ? `m${moment.utc(new Date(fileStat.mtime)).format('X')}` : null,
     fileStat.mode ? `up${fileStat.mode.toString(8).substr(fileStat.mode.toString(8).length - 3)}` : null,
     fileStat.isDirectory() ? 'r' : '/'
   ].join(',');

test/helpers/file-stat.spec.js

@@ -1,5 +1,4 @@
 const {expect} = require('chai');
-const dateFns = require('date-fns');
 
 const fileStat = require('../../src/helpers/file-stat');
 const errors = require('../../src/errors');
@@ -17,24 +16,48 @@ describe('helpers // file-stat', function () {
     size: 527,
     blksize: 4096,
     blocks: 8,
-    atime: 'Mon, 10 Oct 2011 23:24:11 GMT',
-    mtime: 'Mon, 10 Oct 2011 23:24:11 GMT',
-    ctime: 'Mon, 10 Oct 2011 23:24:11 GMT',
-    birthtime: 'Mon, 10 Oct 2011 23:24:11 GMT',
+    atime: 'Mon, 10 Oct 2017 23:24:11 GMT',
+    mtime: 'Mon, 10 Oct 2017 23:24:11 GMT',
+    ctime: 'Mon, 10 Oct 2017 23:24:11 GMT',
+    birthtime: 'Mon, 10 Oct 2017 23:24:11 GMT',
     isDirectory: () => false
   };
 
-  describe.skip('format - ls //', function () {
+  const STAT_OLD = {
+    name: 'test2',
+    dev: 2114,
+    ino: 48064969,
+    mode: 33188,
+    nlink: 1,
+    uid: 84,
+    gid: 101,
+    rdev: 0,
+    size: 530,
+    blksize: 4096,
+    blocks: 8,
+    atime: 'Mon, 10 Oct 2011 14:05:12 GMT',
+    mtime: 'Mon, 10 Oct 2011 14:05:12 GMT',
+    ctime: 'Mon, 10 Oct 2011 14:05:12 GMT',
+    birthtime: 'Mon, 10 Oct 2011 14:05:12 GMT',
+    isDirectory: () => false
+  };
+
+  describe('format - ls //', function () {
     it('formats correctly', () => {
       const format = fileStat(STAT, 'ls');
-      expect(format).to.equal('-rwxrw-r-- 1 85 100          527 Oct 10 17:24 test1');
+      expect(format).to.equal('-rwxrw-r-- 1 85 100          527 Oct 10 23:24 test1');
+    });
+
+    it('formats correctly for files over 6 months old', () => {
+      const format = fileStat(STAT_OLD, 'ls');
+      expect(format).to.equal('-rwxrw-r-- 1 84 101          530 Oct 10  2011 test2');
     });
   });
 
-  describe.skip('format - ep //', function () {
+  describe('format - ep //', function () {
     it('formats correctly', () => {
       const format = fileStat(STAT, 'ep');
-      expect(format).to.equal('+i842.2dd69c9,s527,m1318289051,up644,/	test1');
+      expect(format).to.equal('+i842.2dd69c9,s527,m1507677851,up644,/	test1');
     });
   });