4 files changed, 9 insertions, 2 deletions
diff --git a/modules/hashes.py b/modules/hashes.py
index 819362a3..83272a07 100644
--- a/modules/hashes.py
+++ b/modules/hashes.py
@@ -4,6 +4,7 @@ import os.path
 
 import filelock
 
+from modules import shared
 from modules.paths import data_path
 
 
@@ -68,6 +69,9 @@ def sha256(filename, title):
     if sha256_value is not None:
         return sha256_value
 
+    if shared.cmd_opts.no_hashing:
+        return None
+
     print(f"Calculating sha256 for {filename}: ", end='')
     sha256_value = calculate_sha256(filename)
     print(f"{sha256_value}")
diff --git a/modules/hypernetworks/hypernetwork.py b/modules/hypernetworks/hypernetwork.py
index 503534e2..825a93b2 100644
--- a/modules/hypernetworks/hypernetwork.py
+++ b/modules/hypernetworks/hypernetwork.py
@@ -307,7 +307,7 @@ class Hypernetwork:
     def shorthash(self):
         sha256 = hashes.sha256(self.filename, f'hypernet/{self.name}')
 
-        return sha256[0:10]
+        return sha256[0:10] if sha256 else None
 
 
 def list_hypernetworks(path):
diff --git a/modules/sd_models.py b/modules/sd_models.py
index 300387a9..6c6bb571 100644
--- a/modules/sd_models.py
+++ b/modules/sd_models.py
@@ -59,6 +59,9 @@ class CheckpointInfo:
 
     def calculate_shorthash(self):
         self.sha256 = hashes.sha256(self.filename, "checkpoint/" + self.name)
+        if self.sha256 is None:
+            return
+
         self.shorthash = self.sha256[0:10]
 
         if self.shorthash not in self.ids:
diff --git a/modules/shared.py b/modules/shared.py
index 5600d480..79fbf724 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -106,7 +106,7 @@ parser.add_argument("--tls-certfile", type=str, help="Partially enables TLS, req
 parser.add_argument("--server-name", type=str, help="Sets hostname of server", default=None)
 parser.add_argument("--gradio-queue", action='store_true', help="Uses gradio queue; experimental option; breaks restart UI button")
 parser.add_argument("--skip-version-check", action='store_true', help="Do not check versions of torch and xformers")
-
+parser.add_argument("--no-hashing", action='store_true', help="disable sha256 hashing of checkpoints to help loading performance", default=False)
 
 
 script_loading.preload_extensions(extensions.extensions_dir, parser)