Adds Danger. Disables tag flow

.github/workflows/danger.yml

@@ -0,0 +1,21 @@
+name: Danger
+
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  danger:
+    runs-on: ubuntu-latest
+    name: "Run Danger"
+    steps:
+      - uses: actions/checkout@v1
+      - name: Danger
+        uses: docker://ghcr.io/danger/danger-swift:3.13.0
+        with:
+            args: --failOnErrors --no-publish-check --remove-previous-comments
+        env:
+          GITHUB_TOKEN: ${{ github.token }}

.github/workflows/post-release-merge.yml

@@ -1,11 +1,11 @@
 name: Post PR Merge
 
-on:
-  pull_request:
-    # Patterns matched against refs/heads
-    branches:
-      - release/next
-    types: [ closed ]
+on: workflow_dispatch
+  # pull_request:
+  #   # Patterns matched against refs/heads
+  #   branches:
+  #     - release/next
+  #   types: [ closed ]
 
 jobs:
   release_merge:

Dangerfile.swift

@@ -0,0 +1,19 @@
+import Danger
+import Foundation
+
+let danger = Danger()
+let pr = danger.github.pullRequest
+let isReleasePr = pr.head.ref.hasPrefix("release")
+
+func isConventionalCommitTitle() -> Bool {
+    // Commitizen-compatible conventional commit titles
+    pr.title.hasPrefix("BREAKING CHANGE:") ||
+    pr.title.hasPrefix("chore:") ||
+    pr.title.hasPrefix("fix:") ||
+    pr.title.hasPrefix("feat:")
+}
+
+if !isReleasePr && !isConventionalCommitTitle() {
+    fail("Please use a conventional commit title for this PR. See [Conventional Commits and SemVer](https://www.notion.so/primerio/Automating-Version-Bumping-and-Changelog-Creation-c13e32fea11447069dea76f966f4b0fb?pvs=4#c55764aa2f2748eb988d581a456e61e7)")
+}
+