From fde92c7cf3ab0268cadfa92113903cea522c9119 Mon Sep 17 00:00:00 2001
From: Charan Jagwani <cjagwani@nvidia.com>
Date: Mon, 13 Apr 2026 19:56:01 -0700
Subject: [PATCH] fix(ci): use PR head ref for e2e-brev checkout to support
 fork PRs

workflow_dispatch with pr_number resolved the branch name, but fork
branches don't exist in the base repo. Use refs/pull/<N>/head instead,
which GitHub creates for all open PRs regardless of origin.
---
 .github/workflows/e2e-brev.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/e2e-brev.yaml b/.github/workflows/e2e-brev.yaml
index cd158064b5..fa20941f59 100644
--- a/.github/workflows/e2e-brev.yaml
+++ b/.github/workflows/e2e-brev.yaml
@@ -115,11 +115,13 @@ jobs:
           BRANCH=$(gh pr view ${{ inputs.pr_number }} --repo ${{ github.repository }} --json headRefName -q .headRefName)
           echo "Resolved PR #${{ inputs.pr_number }} → branch: $BRANCH"
           echo "RESOLVED_BRANCH=$BRANCH" >> "$GITHUB_ENV"
+          # Use the PR head ref for checkout — works for both fork and non-fork PRs.
+          echo "PR_REF=refs/pull/${{ inputs.pr_number }}/head" >> "$GITHUB_ENV"
 
       - name: Checkout target branch
         uses: actions/checkout@v6
         with:
-          ref: ${{ env.RESOLVED_BRANCH || inputs.branch || 'main' }}
+          ref: ${{ env.PR_REF || inputs.branch || 'main' }}
 
       - name: Create check run (pending)
         if: inputs.pr_number != ''