From fa3d78b0923fdd129977221e4a633dd22607870a Mon Sep 17 00:00:00 2001
From: Ryan Butler <thebutlah@gmail.com>
Date: Sun, 19 May 2024 02:29:43 -0400
Subject: [PATCH] ci: prevent merge of stacked PRs

---
 .github/workflows/stacked-prs.yaml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 .github/workflows/stacked-prs.yaml

diff --git a/.github/workflows/stacked-prs.yaml b/.github/workflows/stacked-prs.yaml
new file mode 100644
index 0000000..bf2390a
--- /dev/null
+++ b/.github/workflows/stacked-prs.yaml
@@ -0,0 +1,14 @@
+name: Stacked PRs
+on:
+  pull_request:
+  pull_request_target:
+
+jobs:
+  prevent_merge_of_stacked_pr:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check that base is "main"
+        run: |
+          if [[ "${GITHUB_BASE_REF}" != "main" ]]; then
+            exit 1;
+          fi