feat(rulesets): enable updating existing rulesets

for #732

lib/plugins/rulesets.js

@@ -1,10 +1,24 @@
+import deepEqual from 'deep-equal'
+
 import Diffable from './diffable.js'
 
 export default class Rulesets extends Diffable {
   async find () {
-    await this.github.repos.getRepoRulesets(this.repo)
+    const { data: rulesets } = await this.github.repos.getRepoRulesets(this.repo)
+
+    return rulesets
+  }
+
+  comparator (existing, attrs) {
+    return existing.name === attrs.name
+  }
+
+  changed (existing, attrs) {
+    return !deepEqual(existing, attrs)
+  }
 
-    return []
+  update (existing, attrs) {
+    this.github.repos.updateRepoRuleset({ ...this.repo, ruleset_id: existing.ruleset_id, ...attrs })
   }
 
   async add (attrs) {

package.json

@@ -29,6 +29,7 @@
   "author": "Brandon Keepers",
   "license": "ISC",
   "dependencies": {
+    "deep-equal": "^2.2.3",
     "deepmerge": "4.3.1",
     "js-yaml": "4.1.0",
     "probot": "13.3.7"

test/integration/features/rulesets.feature

@@ -6,7 +6,6 @@ Feature: Repository Rulesets
     When a settings sync is triggered
     Then the ruleset is enabled for the repository
 
-  @wip
   Scenario: Update a ruleset
     Given a ruleset exists for the repository
     And the ruleset is modified in the config