Only comment on miss-islington's own PRs. (GH-25)

Author: Mariatta

backport/delete_branch.py

@@ -8,14 +8,15 @@
 @router.register("pull_request", action="closed")
 async def delete_branch(event, gh, *args, **kwargs):
     """
-    Delete the branch once PR is closed.
+    Delete the branch once miss-islington's PR is closed.
     Say thanks if it's merged.
     """
-    if event.data["pull_request"]["merged"]:
-        issue_number = event.data['pull_request']['number']
-        merged_by = event.data['pull_request']['merged_by']['login']
-        util.comment_on_pr(issue_number, f"Thanks, @{merged_by}!")
+    if event.data["pull_request"]["user"]["login"] == "miss-islington":
+        if event.data["pull_request"]["merged"]:
+            issue_number = event.data['pull_request']['number']
+            merged_by = event.data['pull_request']['merged_by']['login']
+            util.comment_on_pr(issue_number, f"Thanks, @{merged_by}!")
 
-    branch_name = event.data['pull_request']['head']['ref']
-    util.delete_branch(branch_name)
+        branch_name = event.data['pull_request']['head']['ref']
+        util.delete_branch(branch_name)