progress bars! omg

src/upgrade.js

@@ -157,6 +157,13 @@ Upgrade.process = function (files, skipCount, callback) {
 				var scriptExport = require(file);
 				var date = new Date(scriptExport.timestamp);
 				var version = path.dirname(file).split('/').pop();
+				var progress = {
+					current: 0,
+					total: 0,
+					incr: Upgrade.incrementProgress,
+					script: scriptExport,
+					date: date,
+				};
 
 				process.stdout.write('  → '.white + String('[' + [date.getUTCFullYear(), date.getUTCMonth() + 1, date.getUTCDate()].join('/') + '] ').gray + String(scriptExport.name).reset + '... ');
 
@@ -168,7 +175,9 @@ Upgrade.process = function (files, skipCount, callback) {
 				}
 
 				// Do the upgrade...
-				scriptExport.method(function (err) {
+				scriptExport.method.bind({
+					progress: progress,
+				})(function (err) {
 					if (err) {
 						process.stdout.write('error\n'.red);
 						return next(err);
@@ -177,6 +186,12 @@ Upgrade.process = function (files, skipCount, callback) {
 					// Record success in schemaLog
 					db.sortedSetAdd('schemaLog', Date.now(), path.basename(file, '.js'));
 
+					if (progress.total > 0) {
+						process.stdout.clearLine();
+						process.stdout.cursorTo(0);
+						process.stdout.write('  → '.white + String('[' + [date.getUTCFullYear(), date.getUTCMonth() + 1, date.getUTCDate()].join('/') + '] ').gray + String(scriptExport.name).reset + '... ');
+					}
+
 					process.stdout.write('OK\n'.green);
 					next();
 				});
@@ -192,4 +207,18 @@ Upgrade.process = function (files, skipCount, callback) {
 	], callback);
 };
 
+Upgrade.incrementProgress = function () {
+	this.current += 1;
+
+	// Redraw the progress bar
+	var percentage = Math.floor((this.current / this.total) * 100) + '%';
+	var filled = Math.floor((this.current / this.total) * 15);
+	var unfilled = 15 - filled;
+	process.stdout.clearLine();
+	process.stdout.cursorTo(0);
+
+	process.stdout.write('  → '.white + String('[' + [this.date.getUTCFullYear(), this.date.getUTCMonth() + 1, this.date.getUTCDate()].join('/') + '] ').gray + String(this.script.name).reset + '... ');
+	process.stdout.write('[' + (filled ? new Array(filled).join('#') : '') + new Array(unfilled).join(' ') + '] (' + this.current + '/' + this.total + ') ' + percentage);
+};
+
 module.exports = Upgrade;

src/upgrades/1.5.0/moderation_history_refactor.js

@@ -11,6 +11,15 @@ module.exports = {
 	name: 'Update moderation notes to zset',
 	timestamp: Date.UTC(2017, 2, 22),
 	method: function (callback) {
+		var progress = this.progress;
+
+		db.sortedSetCard('users:joindate', function (err, numPosts) {
+			if (err) {
+				return callback(err);
+			}
+
+			progress.total = numPosts;
+
 			batch.processSortedSet('users:joindate', function (ids, next) {
 				async.each(ids, function (uid, next) {
 					db.getObjectField('user:' + uid, 'moderationNote', function (err, moderationNote) {
@@ -22,9 +31,12 @@ module.exports = {
 							note: moderationNote,
 							timestamp: Date.now(),
 						};
+
+						progress.incr();
 						db.sortedSetAdd('uid:' + uid + ':moderation:notes', note.timestamp, JSON.stringify(note), next);
 					});
 				}, next);
 			}, callback);
+		});
 	},
 };

src/upgrades/1.5.0/post_votes_zset.js

@@ -10,17 +10,28 @@ module.exports = {
 	name: 'New sorted set posts:votes',
 	timestamp: Date.UTC(2017, 1, 27),
 	method: function (callback) {
+		var progress = this.progress;
+
+		db.sortedSetCard('posts:pid', function (err, numPosts) {
+			if (err) {
+				return callback(err);
+			}
+
+			progress.total = numPosts;
+
 			require('../../batch').processSortedSet('posts:pid', function (pids, next) {
-			async.each(pids, function (pid, next) {
+				async.eachSeries(pids, function (pid, next) {
 					db.getObjectFields('post:' + pid, ['upvotes', 'downvotes'], function (err, postData) {
 						if (err || !postData) {
 							return next(err);
 						}
 
 						var votes = parseInt(postData.upvotes || 0, 10) - parseInt(postData.downvotes || 0, 10);
+						progress.incr();
 						db.sortedSetAdd('posts:votes', votes, pid, next);
 					});
 				}, next);
 			}, {}, callback);
+		});
 	},
 };