Merge pull request #91 from meteor/migrations-2.0.1

Contribution: Run async migrations in order

Author: nachocodoner

.github/workflows/test.yml

@@ -1,5 +1,9 @@
 name: Test
-on: push
+on:
+  push:
+    branches:
+      - master
+  pull_request:
 
 jobs:
   test:
@@ -9,6 +13,7 @@ jobs:
         meteorRelease:
           - '--release 2.9.1'
           - '--release 3.0.1'
+          - '--release 3.2.2'
           # Latest recommended version
           - ''
     steps:

.travis.yml

@@ -1,49 +1,51 @@
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+local-test:percolate:[email protected]
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.versions

@@ -205,7 +205,22 @@ Migrations.add({
 });
 ```
 
-For Meteor 2.8+ you can pass async function directly.
+Starting from Meteor 2.8+, you can use async functions directly in your migrations:
+
+```js
+Migrations.add({
+  version: 3,
+  name: 'Add belts to people wearing pants.',
+  up: async function () {
+    // Asynchronous migration code
+    await SomeCollection.updateAsync({ wearsPants: true }, { $set: { hasBelt: true } }, { multi: true });
+  },
+  down: async function () {
+    // Asynchronous rollback code
+    await SomeCollection.updateAsync({}, { $unset: { hasBelt: true } }, { multi: true });
+  },
+});
+```
 
 * Note: You may want to call migration after startup in case your host (such as Heroku) limits the amount of time given for startup
 ``` javascript