From e9a5ef8916d950c36e3f41341bdb3ece4a18b2b4 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Fri, 5 Feb 2021 03:09:48 +0100
Subject: [PATCH] Re-enable `vendor-gems` for pull requests.

---
 .github/workflows/vendor-gems.yml | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/vendor-gems.yml b/.github/workflows/vendor-gems.yml
index 2e3fef6b15..46b3d454b0 100644
--- a/.github/workflows/vendor-gems.yml
+++ b/.github/workflows/vendor-gems.yml
@@ -1,6 +1,7 @@
 name: Vendor Gems
 
 on:
+  pull_request_target:
   workflow_dispatch:
     inputs:
       pull_request:
@@ -40,17 +41,25 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.HOMEBREW_GITHUB_API_TOKEN }}
       - name: Vendor Gems
+        env:
+          GEM_NAME: ${{ steps.checkout.outputs.gem_name }}
         run: |
-          if [[ '${{ steps.checkout.outputs.gem_name }}' == 'sorbet' ]]; then
+          set -u
+
+          if [[ "${GEM_NAME}" == 'sorbet' ]]; then
             brew vendor-gems --update sorbet,sorbet-runtime
           else
             brew vendor-gems
           fi
       - name: Update RBI files
+        env:
+          GEM_NAME: ${{ steps.checkout.outputs.gem_name }}
         run: |
+          set -u
+
           if brew typecheck --update --fail-if-not-changed; then
             if git add Library/Homebrew/sorbet; then
-              git commit -m "Update RBI files for ${{ steps.checkout.outputs.gem_name }}."
+              git commit -m "Update RBI files for ${GEM_NAME}."
             fi
 
             git reset --hard