Update templates

create/action.yml.erb

@@ -11,6 +11,10 @@ inputs:
   target-url:
     description: "URL to include in the status"
     default: "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+  sha:
+    description: "Commit sha to attach the status to if it's different from the workflow run commit"
+    required: false
+    default: ""
 
 outputs:
   commit_status_sha:
@@ -23,6 +27,8 @@ runs:
     - name: Determine commit to put the build status on
       id: commit_status_sha
       shell: bash
+      env:
+        COMMIT_STATUS_SHA: ${{ inputs.sha }}
       run: |
         @import ../script-import-helper (script_name: "get-commit-sha.bash")
     - name: Create commit status

create/get-commit-sha.bash

@@ -1,6 +1,8 @@
 set -eu -o pipefail
 
-if [[ "$GITHUB_EVENT_NAME" == "pull_request" ]]; then
+if [ -n "$COMMIT_STATUS_SHA" ]; then
+  SHA="$COMMIT_STATUS_SHA"
+elif [[ "$GITHUB_EVENT_NAME" == "pull_request" ]]; then
   SHA="${{ github.event.pull_request.head.sha }}"
 else
   SHA="${{ github.sha }}"