From 23d91dfb126322386b871ce95cd32aed65436a5f Mon Sep 17 00:00:00 2001
From: "John T. Wodder II" <git@varonathe.org>
Date: Mon, 21 Feb 2022 08:23:05 -0500
Subject: [PATCH] Don't repeat API requests when finding subdir files to delete
 before Zarr upload

---
 dandi/files.py | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/dandi/files.py b/dandi/files.py
index 3044eaad8..b0e297ddb 100644
--- a/dandi/files.py
+++ b/dandi/files.py
@@ -866,11 +866,15 @@ def iter_upload(
                         asset_path,
                         p,
                     )
-                    for ee in e.iterfiles():
-                        try:
-                            to_delete.append(old_zarr_entries.pop(str(ee)))
-                        except KeyError:
-                            pass
+                    eprefix = str(e) + "/"
+                    sub_e = [
+                        (k, v)
+                        for k, v in old_zarr_entries.items()
+                        if k.startswith(eprefix)
+                    ]
+                    for k, v in sub_e:
+                        old_zarr_entries.pop(k)
+                        to_delete.append(v)
                     to_upload.append(item)
                 elif pdigest != e.get_digest().value:
                     lgr.debug(