git-node: simplify PR wait time to 48 hours

Refs: nodejs/node#23082

Author: logictitans

lib/pr_checker.js

@@ -4,11 +4,7 @@ const SECOND = 1000;
 const MINUTE = SECOND * 60;
 const HOUR = MINUTE * 60;
 
-const SUNDAY = 0;
-const SATURDAY = 6;
-
-const WEEKDAY_WAIT = 48;
-const WEEKEND_WAIT = 72;
+const WAIT_TIME = 48;
 
 const {
   REVIEW_SOURCES: { FROM_COMMENT, FROM_REVIEW_COMMENT }
@@ -136,16 +132,11 @@ class PRChecker {
    */
   getWait(now) {
     const createTime = new Date(this.pr.createdAt);
-    const utcDay = createTime.getUTCDay();
-    // TODO: do we need to lose this a bit considering timezones?
-    const isWeekend = (utcDay === SUNDAY || utcDay === SATURDAY);
-    const waitTime = isWeekend ? WEEKEND_WAIT : WEEKDAY_WAIT;
-    const timeLeft = waitTime - Math.ceil(
+    const timeLeft = WAIT_TIME - Math.ceil(
       (now.getTime() - createTime.getTime()) / HOUR
     );
 
     return {
-      isWeekend,
       timeLeft
     };
   }
@@ -183,8 +174,7 @@ class PRChecker {
     const wait = this.getWait(now);
     if (wait.timeLeft > 0) {
       const dateStr = new Date(pr.createdAt).toDateString();
-      const type = wait.isWeekend ? 'weekend' : 'weekday';
-      cli.info(`This PR was created on ${dateStr} (${type} in UTC)`);
+      cli.info(`This PR was created on ${dateStr}`);
       cli.warn(`Wait at least ${wait.timeLeft} more hours before landing`);
       return false;
     }

test/unit/pr_checker.test.js

@@ -165,44 +165,12 @@ describe('PRChecker', () => {
   });
 
   describe('checkPRWait', () => {
-    it('should warn about PR younger than 72h on weekends', () => {
-      const cli = new TestCLI();
-
-      const expectedLogs = {
-        warn: [['Wait at least 49 more hours before landing']],
-        info: [['This PR was created on Sat Oct 28 2017 (weekend in UTC)']]
-      };
-
-      const now = new Date('2017-10-29T13:00:41.682Z');
-      const youngPR = Object.assign({}, firstTimerPR, {
-        createdAt: '2017-10-28T14:25:41.682Z'
-      });
-
-      const data = {
-        pr: youngPR,
-        reviewers: allGreenReviewers,
-        comments: commentsWithLGTM,
-        reviews: approvingReviews,
-        commits: simpleCommits,
-        collaborators,
-        authorIsNew: () => true,
-        getThread() {
-          return PRData.prototype.getThread.call(this);
-        }
-      };
-      const checker = new PRChecker(cli, data, argv);
-
-      const status = checker.checkPRWait(now);
-      assert(!status);
-      cli.assertCalledWith(expectedLogs);
-    });
-
-    it('should warn about PR younger than 48h on weekdays', () => {
+    it('should warn about PR younger than 48h', () => {
       const cli = new TestCLI();
 
       const expectedLogs = {
         warn: [['Wait at least 22 more hours before landing']],
-        info: [['This PR was created on Tue Oct 31 2017 (weekday in UTC)']]
+        info: [['This PR was created on Tue Oct 31 2017']]
       };
 
       const now = new Date('2017-11-01T14:25:41.682Z');