X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/ef8deb6d4a729192d7b7818d91530d462e769b7d..066aa9210ac7815cbb9b4a25075f54d614b0afc7:/.github/workflows/lint.yml

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 90c4801..064d474 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,6 +16,13 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
+      - name: Assert PR target is main
+        if: github.event_name == 'pull_request' && github.repository == 'psf/black'
+        run: |
+          if [ "$GITHUB_BASE_REF" != "main" ]; then
+              echo "::error::PR targeting '$GITHUB_BASE_REF', please refile targeting 'main'." && exit 1
+          fi
+
       - name: Set up latest Python
         uses: actions/setup-python@v4
         with: