Add Danger

https://danger.systems/js/

.gitlab-ci.yml

@@ -22,6 +22,10 @@ deps:
     changes:
       - yarn.lock
 
+danger:
+  stage: test
+  script: yarn danger ci
+
 lint-js:
   stage: test
   script: yarn lint:js

dangerfile.ts

@@ -0,0 +1,15 @@
+import { danger, warn } from 'danger';
+
+// No PR is too small to include a description of why you made a change
+if (danger.gitlab.mr.description.length < 10) {
+  warn('Please include a description of your PR changes.');
+}
+
+// Check for a CHANGELOG entry
+const hasChangelog = danger.git.modified_files.some(f => f === 'CHANGELOG.md');
+const description = danger.gitlab.mr.description + danger.gitlab.mr.title;
+const isTrivial = description.includes('#trivial');
+
+if (!hasChangelog && !isTrivial) {
+  warn('Please add a changelog entry for your changes.');
+}

package.json

@@ -209,6 +209,7 @@
     "babel-eslint": "^10.1.0",
     "babel-jest": "^28.1.0",
     "cross-env": "^7.0.3",
+    "danger": "^11.0.7",
     "eslint": "^7.0.0",
     "eslint-plugin-import": "^2.25.4",
     "eslint-plugin-jsdoc": "^39.2.9",