fix: replace moment with dayjs

package.json

@@ -118,13 +118,11 @@
     "@postlight/ci-failed-test-reporter": "^1.0",
     "browser-request": "github:postlight/browser-request#feat-add-headers-to-response",
     "cheerio": "^0.22.0",
+    "dayjs": "^1.11.7",
     "difflib": "github:postlight/difflib.js",
     "ellipsize": "0.1.0",
     "iconv-lite": "0.5.0",
     "jquery": "^3.5.0",
-    "moment": "^2.23.0",
-    "moment-parseformat": "3.0.0",
-    "moment-timezone": "0.5.37",
     "postman-request": "^2.88.1-postman.31",
     "string-direction": "^0.1.2",
     "turndown": "^7.1.1",

src/cleaners/date-published.js

@@ -1,8 +1,8 @@
-import moment from 'moment-timezone';
-import parseFormat from 'moment-parseformat';
-// Is there a compelling reason to use moment here?
-// Mostly only being used for the isValid() method,
-// but could just check for 'Invalid Date' string.
+import dayjs from 'dayjs';
+import customParseFormat from 'dayjs/plugin/customParseFormat';
+import utc from 'dayjs/plugin/utc';
+import timezonePlugin from 'dayjs/plugin/timezone';
+import advancedFormat from 'dayjs/plugin/advancedFormat';
 
 import {
   MS_DATE_STRING,
@@ -16,6 +16,11 @@ import {
   TIME_WITH_OFFSET_RE,
 } from './constants';
 
+dayjs.extend(customParseFormat);
+dayjs.extend(utc);
+dayjs.extend(timezonePlugin);
+dayjs.extend(advancedFormat);
+
 export function cleanDateString(dateString) {
   return (dateString.match(SPLIT_DATE_STRING) || [])
     .join(' ')
@@ -27,21 +32,24 @@ export function cleanDateString(dateString) {
 
 export function createDate(dateString, timezone, format) {
   if (TIME_WITH_OFFSET_RE.test(dateString)) {
-    return moment(new Date(dateString));
+    return dayjs(new Date(dateString));
   }
 
   if (TIME_AGO_STRING.test(dateString)) {
     const fragments = TIME_AGO_STRING.exec(dateString);
-    return moment().subtract(fragments[1], fragments[2]);
+    return dayjs().subtract(fragments[1], fragments[2]);
   }
 
   if (TIME_NOW_STRING.test(dateString)) {
-    return moment();
+    return dayjs();
   }
 
-  return timezone
-    ? moment.tz(dateString, format || parseFormat(dateString), timezone)
-    : moment(dateString, format || parseFormat(dateString));
+  if (timezone) {
+    return format
+      ? dayjs.tz(dateString, format, timezone)
+      : dayjs.tz(new Date(dateString), timezone);
+  }
+  return format ? dayjs(dateString, format) : dayjs(new Date(dateString));
 }
 
 // Take a date published string, and hopefully return a date out of

src/cleaners/date-published.test.js

@@ -1,13 +1,13 @@
 import assert from 'assert';
-import moment from 'moment-timezone';
+import dayjs from 'dayjs';
 
 import cleanDatePublished, { cleanDateString } from './date-published';
 
 describe('cleanDatePublished(dateString)', () => {
   it('returns a date', () => {
     const datePublished = cleanDatePublished('published: 1/1/2020');
 
-    assert.equal(datePublished, moment('1/1/2020', 'MM/DD/YYYY').toISOString());
+    assert.equal(datePublished, dayjs('1/1/2020', 'M/D/YYYY').toISOString());
   });
 
   it('returns null if date is invalid', () => {
@@ -28,37 +28,37 @@ describe('cleanDatePublished(dateString)', () => {
   it('accepts a custom date format', () => {
     // The JS date parser is forgiving, but
     // it needs am/pm separated from a time
-    const datePublished = cleanDatePublished('Mon Aug 03 12:45:00 EDT 2015', {
+    const datePublished = cleanDatePublished('Aug 03 12:45:00 EDT 2015', {
       timezone: 'America/New_York',
-      format: 'ddd MMM DD HH:mm:ss zz YYYY',
+      format: 'MMM DD HH:mm:ss z YYYY',
     });
     assert.equal(datePublished, '2015-08-03T16:45:00.000Z');
   });
 
   it('can handle dates formatted as "[just|right] now"', () => {
     const date1 = cleanDatePublished('now');
-    const newDate1 = moment(date1)
+    const newDate1 = dayjs(date1)
       .format()
       .split('T')[0];
-    const expectedDate1 = moment()
+    const expectedDate1 = dayjs()
       .format()
       .split('T')[0];
     assert.equal(newDate1, expectedDate1);
 
     const date2 = cleanDatePublished('just now');
-    const newDate2 = moment(date2)
+    const newDate2 = dayjs(date2)
       .format()
       .split('T')[0];
-    const expectedDate2 = moment()
+    const expectedDate2 = dayjs()
       .format()
       .split('T')[0];
     assert.equal(newDate2, expectedDate2);
 
     const date3 = cleanDatePublished('right now');
-    const newDate3 = moment(date3)
+    const newDate3 = dayjs(date3)
       .format()
       .split('T')[0];
-    const expectedDate3 = moment()
+    const expectedDate3 = dayjs()
       .format()
       .split('T')[0];
     assert.equal(newDate3, expectedDate3);
@@ -69,30 +69,30 @@ describe('cleanDatePublished(dateString)', () => {
     // "X days ago" will not be accurate down to the exact time
     // "X months ago" will not be accurate down to the exact day
     const date1 = cleanDatePublished('1 hour ago');
-    const newDate1 = moment(date1)
+    const newDate1 = dayjs(date1)
       .format()
       .split('T')[0];
-    const expectedDate1 = moment()
+    const expectedDate1 = dayjs()
       .subtract(1, 'hour')
       .format()
       .split('T')[0];
     assert.equal(newDate1, expectedDate1);
 
     const date2 = cleanDatePublished('5 days ago');
-    const newDate2 = moment(date2)
+    const newDate2 = dayjs(date2)
       .format()
       .split('T')[0];
-    const expectedDate2 = moment()
+    const expectedDate2 = dayjs()
       .subtract(5, 'days')
       .format()
       .split('T')[0];
     assert.equal(newDate2, expectedDate2);
 
     const date3 = cleanDatePublished('10 months ago');
-    const newDate3 = moment(date3)
+    const newDate3 = dayjs(date3)
       .format()
       .split('T')[0];
-    const expectedDate3 = moment()
+    const expectedDate3 = dayjs()
       .subtract(10, 'months')
       .format()
       .split('T')[0];

yarn.lock

@@ -2577,6 +2577,11 @@ date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
 
+dayjs@^1.11.7:
+  version "1.11.7"
+  resolved "https://registry.yarnpkg.com/dayjs/-/dayjs-1.11.7.tgz#4b296922642f70999544d1144a2c25730fce63e2"
+  integrity sha512-+Yw9U6YO5TQohxLcIkrXBeY73WP3ejHWVvx8XCk3gxvQDCTEmS48ZrSZCKciI7Bhl/uCMyxYtE9UqRILmFphkQ==
+
 [email protected], debug@^2.1.2, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -6132,22 +6137,6 @@ module-deps@^6.0.0:
     through2 "^2.0.0"
     xtend "^4.0.0"
 
-[email protected]:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/moment-parseformat/-/moment-parseformat-3.0.0.tgz#3a1dc438b4bc073b7e93cc298cfb6c5daac26dba"
-
-[email protected]:
-  version "0.5.37"
-  resolved "https://registry.yarnpkg.com/moment-timezone/-/moment-timezone-0.5.37.tgz#adf97f719c4e458fdb12e2b4e87b8bec9f4eef1e"
-  integrity sha512-uEDzDNFhfaywRl+vwXxffjjq1q0Vzr+fcQpQ1bU0kbzorfS7zVtZnCnGc8mhWmF39d4g4YriF6kwA75mJKE/Zg==
-  dependencies:
-    moment ">= 2.9.0"
-
-"moment@>= 2.9.0", moment@^2.23.0:
-  version "2.29.4"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.29.4.tgz#3dbe052889fe7c1b2ed966fcb3a77328964ef108"
-  integrity sha512-5LC9SOxjSc2HF6vO2CyuTDNivEdoz2IvyJJGj6X8DJ0eFyfszE0QiEd+iXmBvUP3WHxSjFH/vIsA0EN00cgr8w==
-
 [email protected]:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"