Merge branch 'main' into install/force-torch-reinstall

.github/workflows/test-invoke-pip.yml

@@ -8,10 +8,11 @@ on:
       - 'ready_for_review'
       - 'opened'
       - 'synchronize'
+  workflow_dispatch:
 
 concurrency:
-   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-   cancel-in-progress: true
+  cancel-in-progress: true
 
 jobs:
   matrix:
@@ -62,28 +63,13 @@ jobs:
           #   github-env: $env:GITHUB_ENV
     name: ${{ matrix.pytorch }} on ${{ matrix.python-version }}
     runs-on: ${{ matrix.os }}
+    env:
+      PIP_USE_PEP517: '1'
     steps:
       - name: Checkout sources
         id: checkout-sources
         uses: actions/checkout@v3
 
-      - name: setup python
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: Set Cache-Directory Windows
-        if: runner.os == 'Windows'
-        id: set-cache-dir-windows
-        run: |
-          echo "CACHE_DIR=$HOME\invokeai\models" >> ${{ matrix.github-env }}
-          echo "PIP_NO_CACHE_DIR=1" >> ${{ matrix.github-env }}
-
-      - name: Set Cache-Directory others
-        if: runner.os != 'Windows'
-        id: set-cache-dir-others
-        run: echo "CACHE_DIR=$HOME/invokeai/models" >> ${{ matrix.github-env }}
-
       - name: set test prompt to main branch validation
         if: ${{ github.ref == 'refs/heads/main' }}
         run: echo "TEST_PROMPTS=tests/preflight_prompts.txt" >> ${{ matrix.github-env }}
@@ -92,26 +78,29 @@ jobs:
         if: ${{ github.ref != 'refs/heads/main' }}
         run: echo "TEST_PROMPTS=tests/validate_pr_prompt.txt" >> ${{ matrix.github-env }}
 
+      - name: setup python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: pip
+          cache-dependency-path: pyproject.toml
+
       - name: install invokeai
         env:
           PIP_EXTRA_INDEX_URL: ${{ matrix.extra-index-url }}
         run: >
           pip3 install
-          --use-pep517
           --editable=".[test]"
 
       - name: run pytest
+        id: run-pytest
         run: pytest
 
-      - name: Use Cached models
+      - name: set INVOKEAI_OUTDIR
-        id: cache-sd-model
+        run: >
-        uses: actions/cache@v3
+          python -c
-        env:
+          "import os;from ldm.invoke.globals import Globals;OUTDIR=os.path.join(Globals.root,str('outputs'));print(f'INVOKEAI_OUTDIR={OUTDIR}')"
-          cache-name: huggingface-models
+          >> ${{ matrix.github-env }}
-        with:
-          path: ${{ env.CACHE_DIR }}
-          key: ${{ env.cache-name }}
-          enableCrossOsArchive: true
 
       - name: run invokeai-configure
         id: run-preload-models
@@ -124,9 +113,8 @@ jobs:
           --full-precision
         # can't use fp16 weights without a GPU
 
-      - name: Run the tests
+      - name: run invokeai
-        if: runner.os != 'Windows'
+        id: run-invokeai
-        id: run-tests
         env:
           # Set offline mode to make sure configure preloaded successfully.
           HF_HUB_OFFLINE: 1
@@ -137,10 +125,11 @@ jobs:
           --no-patchmatch
           --no-nsfw_checker
           --from_file ${{ env.TEST_PROMPTS }}
+          --outdir ${{ env.INVOKEAI_OUTDIR }}/${{ matrix.python-version }}/${{ matrix.pytorch }}
 
       - name: Archive results
         id: archive-results
         uses: actions/upload-artifact@v3
         with:
-          name: results_${{ matrix.pytorch }}_${{ matrix.python-version }}
+          name: results
-          path: ${{ env.INVOKEAI_ROOT }}/outputs
+          path: ${{ env.INVOKEAI_OUTDIR }}

invokeai/backend/invoke_ai_web_server.py

@@ -1208,12 +1208,18 @@ class InvokeAIWebServer:
             )
 
         except KeyboardInterrupt:
+            # Clear the CUDA cache on an exception
+            self.empty_cuda_cache()
             self.socketio.emit("processingCanceled")
             raise
         except CanceledException:
+            # Clear the CUDA cache on an exception
+            self.empty_cuda_cache()
             self.socketio.emit("processingCanceled")
             pass
         except Exception as e:
+            # Clear the CUDA cache on an exception
+            self.empty_cuda_cache()
             print(e)
             self.socketio.emit("error", {"message": (str(e))})
             print("\n")
@@ -1221,6 +1227,12 @@ class InvokeAIWebServer:
             traceback.print_exc()
             print("\n")
 
+    def empty_cuda_cache(self):
+        if self.generate.device.type == "cuda":
+            import torch.cuda
+
+            torch.cuda.empty_cache()
+
     def parameters_to_generated_image_metadata(self, parameters):
         try:
             # top-level metadata minus `image` or `images`

invokeai/frontend/dist/index.html

@@ -7,8 +7,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>InvokeAI - A Stable Diffusion Toolkit</title>
     <link rel="shortcut icon" type="icon" href="./assets/favicon.0d253ced.ico" />
-    <script type="module" crossorigin src="./assets/index.dd4ad8a1.js"></script>
+    <script type="module" crossorigin src="./assets/index.9310184f.js"></script>
-    <link rel="stylesheet" href="./assets/index.8badc8b4.css">
+    <link rel="stylesheet" href="./assets/index.1536494e.css">
     <script type="module">try{import.meta.url;import("_").catch(()=>1);}catch(e){}window.__vite_is_modern_browser=true;</script>
     <script type="module">!function(){if(window.__vite_is_modern_browser)return;console.warn("vite: loading legacy build because dynamic import or import.meta.url is unsupported, syntax error above should be ignored");var e=document.getElementById("vite-legacy-polyfill"),n=document.createElement("script");n.src=e.src,n.onload=function(){System.import(document.getElementById('vite-legacy-entry').getAttribute('data-src'))},document.body.appendChild(n)}();</script>
   </head>
@@ -18,6 +18,6 @@
     
     <script nomodule>!function(){var e=document,t=e.createElement("script");if(!("noModule"in t)&&"onbeforeload"in t){var n=!1;e.addEventListener("beforeload",(function(e){if(e.target===t)n=!0;else if(!e.target.hasAttribute("nomodule")||!n)return;e.preventDefault()}),!0),t.type="module",t.src=".",e.head.appendChild(t),t.remove()}}();</script>
     <script nomodule crossorigin id="vite-legacy-polyfill" src="./assets/polyfills-legacy-dde3a68a.js"></script>
-    <script nomodule crossorigin id="vite-legacy-entry" data-src="./assets/index-legacy-8219c08f.js">System.import(document.getElementById('vite-legacy-entry').getAttribute('data-src'))</script>
+    <script nomodule crossorigin id="vite-legacy-entry" data-src="./assets/index-legacy-a33ada34.js">System.import(document.getElementById('vite-legacy-entry').getAttribute('data-src'))</script>
   </body>
 </html>

invokeai/frontend/dist/locales/options/en.json

@@ -43,6 +43,7 @@
   "invoke": "Invoke",
   "cancel": "Cancel",
   "promptPlaceholder": "Type prompt here. [negative tokens], (upweight)++, (downweight)--, swap and blend are available (see docs)",
+  "negativePrompts": "Negative Prompts",
   "sendTo": "Send to",
   "sendToImg2Img": "Send to Image to Image",
   "sendToUnifiedCanvas": "Send To Unified Canvas",

invokeai/frontend/public/locales/options/en.json

@@ -43,6 +43,7 @@
   "invoke": "Invoke",
   "cancel": "Cancel",
   "promptPlaceholder": "Type prompt here. [negative tokens], (upweight)++, (downweight)--, swap and blend are available (see docs)",
+  "negativePrompts": "Negative Prompts",
   "sendTo": "Send to",
   "sendToImg2Img": "Send to Image to Image",
   "sendToUnifiedCanvas": "Send To Unified Canvas",

invokeai/frontend/src/common/hooks/useClickOutsideWatcher.ts

@@ -11,7 +11,6 @@ const useClickOutsideWatcher = () => {
     function handleClickOutside(e: MouseEvent) {
       watchers.forEach(({ ref, enable, callback }) => {
         if (enable && ref.current && !ref.current.contains(e.target as Node)) {
-          console.log('callback');
           callback();
         }
       });

invokeai/frontend/src/common/util/getPromptAndNegative.ts

@@ -0,0 +1,20 @@
+import * as InvokeAI from 'app/invokeai';
+import promptToString from './promptToString';
+
+export function getPromptAndNegative(input_prompt: InvokeAI.Prompt) {
+  let prompt: string = promptToString(input_prompt);
+  let negativePrompt: string | null = null;
+
+  const negativePromptRegExp = new RegExp(/(?<=\[)[^\][]*(?=])/, 'gi');
+  const negativePromptMatches = [...prompt.matchAll(negativePromptRegExp)];
+
+  if (negativePromptMatches && negativePromptMatches.length > 0) {
+    negativePrompt = negativePromptMatches.join(', ');
+    prompt = prompt
+      .replaceAll(negativePromptRegExp, '')
+      .replaceAll('[]', '')
+      .trim();
+  }
+
+  return [prompt, negativePrompt];
+}

invokeai/frontend/src/common/util/parameterTranslation.ts

@@ -106,6 +106,7 @@ export const frontendToBackendParameters = (
     iterations,
     perlin,
     prompt,
+    negativePrompt,
     sampler,
     seamBlur,
     seamless,
@@ -155,6 +156,10 @@ export const frontendToBackendParameters = (
   let esrganParameters: false | BackendEsrGanParameters = false;
   let facetoolParameters: false | BackendFacetoolParameters = false;
 
+  if (negativePrompt !== '') {
+    generationParameters.prompt = `${prompt} [${negativePrompt}]`;
+  }
+
   generationParameters.seed = shouldRandomizeSeed
     ? randomInt(NUMPY_RAND_MIN, NUMPY_RAND_MAX)
     : seed;

invokeai/frontend/src/features/gallery/components/CurrentImageButtons.tsx

@@ -9,6 +9,7 @@ import {
   setAllParameters,
   setInitialImage,
   setIsLightBoxOpen,
+  setNegativePrompt,
   setPrompt,
   setSeed,
   setShouldShowImageDetails,
@@ -44,6 +45,7 @@ import { GalleryState } from 'features/gallery/store/gallerySlice';
 import { activeTabNameSelector } from 'features/options/store/optionsSelectors';
 import IAIPopover from 'common/components/IAIPopover';
 import { useTranslation } from 'react-i18next';
+import { getPromptAndNegative } from 'common/util/getPromptAndNegative';
 
 const systemSelector = createSelector(
   [
@@ -241,9 +243,18 @@ const CurrentImageButtons = () => {
     [currentImage]
   );
 
-  const handleClickUsePrompt = () =>
+  const handleClickUsePrompt = () => {
-    currentImage?.metadata?.image?.prompt &&
+    if (currentImage?.metadata?.image?.prompt) {
-    dispatch(setPrompt(currentImage.metadata.image.prompt));
+      const [prompt, negativePrompt] = getPromptAndNegative(
+        currentImage?.metadata?.image?.prompt
+      );
+
+      prompt && dispatch(setPrompt(prompt));
+      negativePrompt
+        ? dispatch(setNegativePrompt(negativePrompt))
+        : dispatch(setNegativePrompt(''));
+    }
+  };
 
   useHotkeys(
     'p',

invokeai/frontend/src/features/gallery/components/HoverableImage.tsx

@@ -10,9 +10,10 @@ import { DragEvent, memo, useState } from 'react';
 import {
   setActiveTab,
   setAllImageToImageParameters,
-  setAllTextToImageParameters,
+  setAllParameters,
   setInitialImage,
   setIsLightBoxOpen,
+  setNegativePrompt,
   setPrompt,
   setSeed,
 } from 'features/options/store/optionsSlice';
@@ -24,6 +25,7 @@ import {
 } from 'features/canvas/store/canvasSlice';
 import { hoverableImageSelector } from 'features/gallery/store/gallerySliceSelectors';
 import { useTranslation } from 'react-i18next';
+import { getPromptAndNegative } from 'common/util/getPromptAndNegative';
 
 interface HoverableImageProps {
   image: InvokeAI.Image;
@@ -62,7 +64,17 @@ const HoverableImage = memo((props: HoverableImageProps) => {
   const handleMouseOut = () => setIsHovered(false);
 
   const handleUsePrompt = () => {
-    image.metadata && dispatch(setPrompt(image.metadata.image.prompt));
+    if (image.metadata) {
+      const [prompt, negativePrompt] = getPromptAndNegative(
+        image.metadata?.image?.prompt
+      );
+
+      prompt && dispatch(setPrompt(prompt));
+      negativePrompt
+        ? dispatch(setNegativePrompt(negativePrompt))
+        : dispatch(setNegativePrompt(''));
+    }
+
     toast({
       title: t('toast:promptSet'),
       status: 'success',
@@ -115,7 +127,7 @@ const HoverableImage = memo((props: HoverableImageProps) => {
   };
 
   const handleUseAllParameters = () => {
-    metadata && dispatch(setAllTextToImageParameters(metadata));
+    metadata && dispatch(setAllParameters(metadata));
     toast({
       title: t('toast:parametersSet'),
       status: 'success',

invokeai/frontend/src/features/gallery/store/thunks/uploadImage.ts

@@ -38,7 +38,6 @@ export const uploadImage =
     });
 
     const image = (await response.json()) as InvokeAI.ImageUploadResponse;
-    console.log(image);
     const newImage: InvokeAI.Image = {
       uuid: uuidv4(),
       category: 'user',

invokeai/frontend/src/features/options/components/PromptInput/NegativePromptInput.tsx

@@ -0,0 +1,38 @@
+import { FormControl, Textarea } from '@chakra-ui/react';
+import type { RootState } from 'app/store';
+import { useAppDispatch, useAppSelector } from 'app/storeHooks';
+import { setNegativePrompt } from 'features/options/store/optionsSlice';
+import { useTranslation } from 'react-i18next';
+
+export function NegativePromptInput() {
+  const negativePrompt = useAppSelector(
+    (state: RootState) => state.options.negativePrompt
+  );
+
+  const dispatch = useAppDispatch();
+  const { t } = useTranslation();
+
+  return (
+    <FormControl>
+      <Textarea
+        id="negativePrompt"
+        name="negativePrompt"
+        value={negativePrompt}
+        onChange={(e) => dispatch(setNegativePrompt(e.target.value))}
+        background="var(--prompt-bg-color)"
+        placeholder={t('options:negativePrompts')}
+        _placeholder={{ fontSize: '0.8rem' }}
+        borderColor="var(--border-color)"
+        _hover={{
+          borderColor: 'var(--border-color-light)',
+        }}
+        _focusVisible={{
+          borderColor: 'var(--border-color-invalid)',
+          boxShadow: '0 0 10px var(--box-shadow-color-invalid)',
+        }}
+        fontSize="0.9rem"
+        color="var(--text-color-secondary)"
+      />
+    </FormControl>
+  );
+}

invokeai/frontend/src/features/options/store/optionsSlice.ts

@@ -5,6 +5,7 @@ import promptToString from 'common/util/promptToString';
 import { seedWeightsToString } from 'common/util/seedWeightPairs';
 import { FACETOOL_TYPES } from 'app/constants';
 import { InvokeTabName, tabMap } from 'features/tabs/tabMap';
+import { getPromptAndNegative } from 'common/util/getPromptAndNegative';
 
 export type UpscalingLevel = 2 | 4;
 
@@ -28,6 +29,7 @@ export interface OptionsState {
   optionsPanelScrollPosition: number;
   perlin: number;
   prompt: string;
+  negativePrompt: string;
   sampler: string;
   seamBlur: number;
   seamless: boolean;
@@ -77,6 +79,7 @@ const initialOptionsState: OptionsState = {
   optionsPanelScrollPosition: 0,
   perlin: 0,
   prompt: '',
+  negativePrompt: '',
   sampler: 'k_lms',
   seamBlur: 16,
   seamless: false,
@@ -123,6 +126,17 @@ export const optionsSlice = createSlice({
         state.prompt = promptToString(newPrompt);
       }
     },
+    setNegativePrompt: (
+      state,
+      action: PayloadAction<string | InvokeAI.Prompt>
+    ) => {
+      const newPrompt = action.payload;
+      if (typeof newPrompt === 'string') {
+        state.negativePrompt = newPrompt;
+      } else {
+        state.negativePrompt = promptToString(newPrompt);
+      }
+    },
     setIterations: (state, action: PayloadAction<number>) => {
       state.iterations = action.payload;
     },
@@ -307,7 +321,14 @@ export const optionsSlice = createSlice({
         state.shouldRandomizeSeed = false;
       }
 
-      if (prompt) state.prompt = promptToString(prompt);
+      if (prompt) {
+        const [promptOnly, negativePrompt] = getPromptAndNegative(prompt);
+        if (promptOnly) state.prompt = promptOnly;
+        negativePrompt
+          ? (state.negativePrompt = negativePrompt)
+          : (state.negativePrompt = '');
+      }
+
       if (sampler) state.sampler = sampler;
       if (steps) state.steps = steps;
       if (cfg_scale) state.cfgScale = cfg_scale;
@@ -448,6 +469,7 @@ export const {
   setParameter,
   setPerlin,
   setPrompt,
+  setNegativePrompt,
   setSampler,
   setSeamBlur,
   setSeamless,

invokeai/frontend/src/features/system/components/LanguagePicker.tsx

@@ -13,16 +13,16 @@ export default function LanguagePicker() {
 
   const LANGUAGES = {
     en: t('common:langEnglish'),
-    ru: t('common:langRussian'),
-    it: t('common:langItalian'),
-    pt_br: t('common:langBrPortuguese'),
-    de: t('common:langGerman'),
-    pl: t('common:langPolish'),
-    zh_cn: t('common:langSimplifiedChinese'),
-    es: t('common:langSpanish'),
-    ja: t('common:langJapanese'),
     nl: t('common:langDutch'),
     fr: t('common:langFrench'),
+    de: t('common:langGerman'),
+    it: t('common:langItalian'),
+    ja: t('common:langJapanese'),
+    pl: t('common:langPolish'),
+    pt_br: t('common:langBrPortuguese'),
+    ru: t('common:langRussian'),
+    zh_cn: t('common:langSimplifiedChinese'),
+    es: t('common:langSpanish'),
     ua: t('common:langUkranian'),
   };
 

invokeai/frontend/src/features/system/components/ModelManager/CheckpointModelEdit.tsx

@@ -316,7 +316,6 @@ export default function CheckpointModelEdit() {
   ) : (
     <Flex
       width="100%"
-      height="250px"
       justifyContent="center"
       alignItems="center"
       backgroundColor="var(--background-color)"

invokeai/frontend/src/features/system/components/ModelManager/DiffusersModelEdit.tsx

@@ -271,7 +271,6 @@ export default function DiffusersModelEdit() {
   ) : (
     <Flex
       width="100%"
-      height="250px"
       justifyContent="center"
       alignItems="center"
       backgroundColor="var(--background-color)"

invokeai/frontend/src/features/tabs/components/ImageToImage/ImageToImagePanel.tsx

@@ -19,6 +19,8 @@ import { useAppDispatch, useAppSelector } from 'app/storeHooks';
 import InvokeOptionsPanel from 'features/tabs/components/InvokeOptionsPanel';
 import { activeTabNameSelector } from 'features/options/store/optionsSelectors';
 import { useTranslation } from 'react-i18next';
+import { Flex } from '@chakra-ui/react';
+import { NegativePromptInput } from 'features/options/components/PromptInput/NegativePromptInput';
 
 export default function ImageToImagePanel() {
   const { t } = useTranslation();
@@ -67,7 +69,10 @@ export default function ImageToImagePanel() {
 
   return (
     <InvokeOptionsPanel>
-      <PromptInput />
+      <Flex flexDir="column" rowGap="0.5rem">
+        <PromptInput />
+        <NegativePromptInput />
+      </Flex>
       <ProcessButtons />
       <MainOptions />
       <ImageToImageStrength

invokeai/frontend/src/features/tabs/components/InvokeTabs.scss

@@ -24,8 +24,8 @@
     }
 
     svg {
-      width: 26px;
+      width: 24px;
-      height: 26px;
+      height: 24px;
     }
 
     &[aria-selected='true'] {

invokeai/frontend/src/features/tabs/components/TextToImage/TextToImagePanel.tsx

@@ -1,3 +1,4 @@
+import { Flex } from '@chakra-ui/react';
 import { Feature } from 'app/features';
 import FaceRestoreOptions from 'features/options/components/AdvancedOptions/FaceRestore/FaceRestoreOptions';
 import FaceRestoreToggle from 'features/options/components/AdvancedOptions/FaceRestore/FaceRestoreToggle';
@@ -10,6 +11,7 @@ import VariationsOptions from 'features/options/components/AdvancedOptions/Varia
 import MainOptions from 'features/options/components/MainOptions/MainOptions';
 import OptionsAccordion from 'features/options/components/OptionsAccordion';
 import ProcessButtons from 'features/options/components/ProcessButtons/ProcessButtons';
+import { NegativePromptInput } from 'features/options/components/PromptInput/NegativePromptInput';
 import PromptInput from 'features/options/components/PromptInput/PromptInput';
 import InvokeOptionsPanel from 'features/tabs/components/InvokeOptionsPanel';
 import { useTranslation } from 'react-i18next';
@@ -50,7 +52,10 @@ export default function TextToImagePanel() {
 
   return (
     <InvokeOptionsPanel>
-      <PromptInput />
+      <Flex flexDir="column" rowGap="0.5rem">
+        <PromptInput />
+        <NegativePromptInput />
+      </Flex>
       <ProcessButtons />
       <MainOptions />
       <OptionsAccordion accordionInfo={textToImageAccordions} />

invokeai/frontend/src/features/tabs/components/UnifiedCanvas/UnifiedCanvasPanel.tsx

@@ -13,6 +13,8 @@ import InvokeOptionsPanel from 'features/tabs/components/InvokeOptionsPanel';
 import BoundingBoxSettings from 'features/options/components/AdvancedOptions/Canvas/BoundingBoxSettings/BoundingBoxSettings';
 import InfillAndScalingOptions from 'features/options/components/AdvancedOptions/Canvas/InfillAndScalingOptions';
 import { useTranslation } from 'react-i18next';
+import { Flex } from '@chakra-ui/react';
+import { NegativePromptInput } from 'features/options/components/PromptInput/NegativePromptInput';
 
 export default function UnifiedCanvasPanel() {
   const { t } = useTranslation();
@@ -48,7 +50,10 @@ export default function UnifiedCanvasPanel() {
 
   return (
     <InvokeOptionsPanel>
-      <PromptInput />
+      <Flex flexDir="column" rowGap="0.5rem">
+        <PromptInput />
+        <NegativePromptInput />
+      </Flex>
       <ProcessButtons />
       <MainOptions />
       <ImageToImageStrength

ldm/generate.py

@@ -211,7 +211,7 @@ class Generate:
                 print('>> xformers memory-efficient attention is available but disabled')
         else:
             print('>> xformers not installed')
-            
+
         # model caching system for fast switching
         self.model_manager = ModelManager(mconfig,self.device,self.precision,max_loaded_models=max_loaded_models)
         # don't accept invalid models
@@ -565,11 +565,19 @@ class Generate:
                                              image_callback = image_callback)
 
         except KeyboardInterrupt:
+            # Clear the CUDA cache on an exception
+            if self._has_cuda():
+                torch.cuda.empty_cache()
+
             if catch_interrupts:
                 print('**Interrupted** Partial results will be returned.')
             else:
                 raise KeyboardInterrupt
         except RuntimeError:
+            # Clear the CUDA cache on an exception
+            if self._has_cuda():
+                torch.cuda.empty_cache()
+
             print(traceback.format_exc(), file=sys.stderr)
             print('>> Could not generate image.')
 

ldm/invoke/generator/txt2img2img.py

@@ -65,6 +65,10 @@ class Txt2Img2Img(Generator):
                 mode="bilinear"
             )
 
+            # Free up memory from the last generation.
+            if self.model.device.type == 'cuda':
+                torch.cuda.empty_cache()
+
             second_pass_noise = self.get_noise_like(resized_latents)
 
             verbosity = get_verbosity()

ldm/invoke/model_manager.py

@@ -753,7 +753,7 @@ class ModelManager(object):
         return search_folder, found_models
 
     def _choose_diffusers_vae(self, model_name:str, vae:str=None)->Union[dict,str]:
-        
+
         # In the event that the original entry is using a custom ckpt VAE, we try to
         # map that VAE onto a diffuser VAE using a hard-coded dictionary.
         # I would prefer to do this differently: We load the ckpt model into memory, swap the
@@ -954,7 +954,7 @@ class ModelManager(object):
     def _has_cuda(self) -> bool:
         return self.device.type == 'cuda'
 
-    def _diffuser_sha256(self,name_or_path:Union[str, Path])->Union[str,bytes]:
+    def _diffuser_sha256(self,name_or_path:Union[str, Path],chunksize=4096)->Union[str,bytes]:
         path = None
         if isinstance(name_or_path,Path):
            path = name_or_path
@@ -976,7 +976,8 @@ class ModelManager(object):
             for name in files:
                 count += 1
                 with open(os.path.join(root,name),'rb') as f:
-                    sha.update(f.read())
+                    while chunk := f.read(chunksize):
+                        sha.update(chunk)
         hash = sha.hexdigest()
         toc = time.time()
         print(f'  | sha256 = {hash} ({count} files hashed in','%4.2fs)' % (toc - tic))