[MOB-11085] Migrate Danger to TypeScript (#957)

Author: a7medev

.circleci/config.yml

@@ -26,12 +26,15 @@ commands:
             - << parameters.working_directory >>/Pods
 jobs:
   danger:
-    docker:
-      - image: circleci/ruby:2.6.4
+    executor:
+      name: node/default
     steps:
       - advanced-checkout/shallow-checkout
-      - run: bundle install
-      - run: bundle exec danger
+      - node/install-packages:
+          pkg-manager: yarn
+      - run:
+          name: Run Danger
+          command: yarn danger ci
 
   lint:
     executor:

Dangerfile

@@ -0,0 +1,22 @@
+import { danger, fail, schedule, warn } from 'danger';
+
+const hasSourceChanges = danger.git.modified_files.some((file) => file.startsWith('src/'));
+const declaredTrivial =
+  !hasSourceChanges || danger.github.issue.labels.some((label) => label.name === 'trivial');
+
+// Make sure PR has a description.
+async function hasDescription() {
+  const linesOfCode = (await danger.git.linesOfCode()) ?? 0;
+  const hasNoDiscription = danger.github.pr.body.includes('> Description goes here');
+  if (hasNoDiscription && linesOfCode > 10) {
+    fail('Please provide a summary of the changes in the pull request description.');
+  }
+
+  if (!danger.git.modified_files.includes('CHANGELOG.md') && !declaredTrivial) {
+    warn(
+      'You have not included a CHANGELOG entry! \nYou can find it at [CHANGELOG.md](https://github.com/Instabug/Instabug-React-Native/blob/master/CHANGELOG.md).',
+    );
+  }
+}
+
+schedule(hasDescription());

dangerfile.ts

@@ -57,6 +57,7 @@
     "babel-core": "7.0.0-bridge.0",
     "babel-jest": "^24.8.0",
     "commander": "^9.4.1",
+    "danger": "^11.2.5",
     "eslint": "^8.24.0",
     "eslint-plugin-prettier": "^4.2.1",
     "esprima": "^4.0.1",