fix assigner more (#462)

* try again

* test draft

* more cleanup

* delete test readme

* one more simplification

Author: mvadari

.github/scripts/assign_xls_number.py

@@ -63,7 +63,7 @@ def find_draft_xls_files(changed_files: list[str]) -> list[str]:
     Returns:
         List of draft XLS directory names (e.g., ["XLS-draft-my-feature"])
     """
-    draft_pattern = re.compile(r"^(XLS-draft-[^/]+)/README\.md$")
+    draft_pattern = re.compile(r"^((XLS|xls)-draft[^/]+)/README\.md$")
     drafts = []
 
     for file_path in changed_files:

.github/workflows/assign-xls-number.yml

@@ -1,30 +1,41 @@
 name: Assign XLS Number
 
 on:
-  pull_request:
-    types: [opened, synchronize, reopened]
+  pull_request_target:
+    types: [opened, synchronize, reopened, ready_for_review]
 
 jobs:
   assign-xls-number:
     runs-on: ubuntu-latest
     name: Assign XLS Number to Draft
     permissions:
       pull-requests: write
+      issues: write
       contents: read
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v6
         with:
           fetch-depth: 0
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Checkout script from base branch
+        uses: actions/checkout@v6
+        with:
+          ref: ${{ github.event.pull_request.base.ref }}
+          sparse-checkout: |
+            .github/scripts/assign_xls_number.py
+          sparse-checkout-cone-mode: false
+          path: base-repo
 
       - name: Get added files
         id: added-files
         uses: tj-actions/changed-files@v47
         with:
           files: |
-            XLS-draft-*/README.md
-            xls-draft-*/README.md
+            XLS-draft*/README.md
+            xls-draft*/README.md
           # Only look at added files, not modified ones
           include_all_old_new_renamed_files: false
 
@@ -53,7 +64,7 @@ jobs:
         id: assign-number
         run: |
           echo ${{ steps.check-drafts.outputs.draft_files }}
-          python .github/scripts/assign_xls_number.py ${{ steps.check-drafts.outputs.draft_files }}
+          python base-repo/.github/scripts/assign_xls_number.py ${{ steps.check-drafts.outputs.draft_files }}
 
       - name: Check for existing assignment comment
         if: steps.check-drafts.outputs.has_drafts == 'true'