From b76c26cb4691b12377ec245112af4a96fef9a73d Mon Sep 17 00:00:00 2001
From: Ben Challis <ben-challis@users.noreply.github.com>
Date: Sat, 2 Mar 2024 23:39:40 +0000
Subject: [PATCH] Fix merge gatekeeper on PRs (#290)

`github.ref` breaks PRs, but works for merge queues, make it
conditional.

See https://github.com/upsidr/merge-gatekeeper/issues/71

---------

Co-authored-by: Marcin Michalski <marcin+github@michalski.dev>
---
 .github/workflows/merge-gatekeeper.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/merge-gatekeeper.yml b/.github/workflows/merge-gatekeeper.yml
index 737629d8..4dd61413 100644
--- a/.github/workflows/merge-gatekeeper.yml
+++ b/.github/workflows/merge-gatekeeper.yml
@@ -17,4 +17,4 @@ jobs:
         uses: upsidr/merge-gatekeeper@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          ref: ${{ github.sha }}
+          ref: ${{ github.event.pull_request.head.sha || github.sha }}