Add github workflow for a build with pytorch nightly.

.ci/nightly/update_windows/update.py

+import pygit2
+from datetime import datetime
+import sys
+
+def pull(repo, remote_name='origin', branch='master'):
+    for remote in repo.remotes:
+        if remote.name == remote_name:
+            remote.fetch()
+            remote_master_id = repo.lookup_reference('refs/remotes/origin/%s' % (branch)).target
+            merge_result, _ = repo.merge_analysis(remote_master_id)
+            # Up to date, do nothing
+            if merge_result & pygit2.GIT_MERGE_ANALYSIS_UP_TO_DATE:
+                return
+            # We can just fastforward
+            elif merge_result & pygit2.GIT_MERGE_ANALYSIS_FASTFORWARD:
+                repo.checkout_tree(repo.get(remote_master_id))
+                try:
+                    master_ref = repo.lookup_reference('refs/heads/%s' % (branch))
+                    master_ref.set_target(remote_master_id)
+                except KeyError:
+                    repo.create_branch(branch, repo.get(remote_master_id))
+                repo.head.set_target(remote_master_id)
+            elif merge_result & pygit2.GIT_MERGE_ANALYSIS_NORMAL:
+                repo.merge(remote_master_id)
+
+                if repo.index.conflicts is not None:
+                    for conflict in repo.index.conflicts:
+                        print('Conflicts found in:', conflict[0].path)
+                    raise AssertionError('Conflicts, ahhhhh!!')
+
+                user = repo.default_signature
+                tree = repo.index.write_tree()
+                commit = repo.create_commit('HEAD',
+                                            user,
+                                            user,
+                                            'Merge!',
+                                            tree,
+                                            [repo.head.target, remote_master_id])
+                # We need to do this or git CLI will think we are still merging.
+                repo.state_cleanup()
+            else:
+                raise AssertionError('Unknown merge analysis result')
+
+
+repo = pygit2.Repository(str(sys.argv[1]))
+ident = pygit2.Signature('comfyui', 'comfy@ui')
+try:
+    print("stashing current changes")
+    repo.stash(ident)
+except KeyError:
+    print("nothing to stash")
+backup_branch_name = 'backup_branch_{}'.format(datetime.today().strftime('%Y-%m-%d_%H_%M_%S'))
+print("creating backup branch: {}".format(backup_branch_name))
+repo.branches.local.create(backup_branch_name, repo.head.peel())
+
+print("checking out master branch")
+branch = repo.lookup_branch('master')
+ref = repo.lookup_reference(branch.name)
+repo.checkout(ref)
+
+print("pulling latest changes")
+pull(repo)
+
+print("Done!")
+

.ci/nightly/update_windows/update_all.bat

+..\python_embeded\python.exe .\update.py ..\ComfyUI\
+..\python_embeded\python.exe -s -m pip install --upgrade --pre torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu118 -r ../ComfyUI/requirements.txt pygit2
+pause

.ci/nightly/update_windows/update_comfyui_only.bat

+..\python_embeded\python.exe .\update.py ..\ComfyUI\
+pause

.ci/nightly/windows_base_files/README_VERY_IMPORTANT.txt

+HOW TO RUN:
+
+if you have a NVIDIA gpu:
+
+run_nvidia_gpu.bat
+
+
+
+To run it in slow CPU mode:
+
+run_cpu.bat
+
+
+
+IF YOU GET A RED ERROR IN THE UI MAKE SURE YOU HAVE A MODEL/CHECKPOINT IN: ComfyUI\models\checkpoints
+
+You can download the stable diffusion 1.5 one from: https://huggingface.co/runwayml/stable-diffusion-v1-5/blob/main/v1-5-pruned-emaonly.ckpt
+
+
+
+To update only the ComfyUI code: update\update_comfyui_only.bat
+To update ComfyUI with the python dependencies: update\update_all.bat

.ci/nightly/windows_base_files/run_cpu.bat

+.\python_embeded\python.exe -s ComfyUI\main.py --cpu --windows-standalone-build
+pause

.ci/nightly/windows_base_files/run_nvidia_gpu.bat

+.\python_embeded\python.exe -s ComfyUI\main.py --windows-standalone-build --use-pytorch-cross-attention
+pause

.ci/setup_windows_zip_nightly_pytorch.ps1

+Invoke-WebRequest -URI https://www.python.org/ftp/python/3.10.9/python-3.10.9-embed-amd64.zip -O python_embeded.zip
+Expand-Archive python_embeded.zip
+rm python_embeded.zip
+cd python_embeded
+Add-Content -Path .\python310._pth -Value 'import site'
+Invoke-WebRequest -Uri https://bootstrap.pypa.io/get-pip.py -OutFile get-pip.py
+.\python.exe get-pip.py
+.\python.exe -s -m pip install torch torchvision torchaudio --pre --extra-index-url https://download.pytorch.org/whl/nightly/cu118 -r ../ComfyUI/requirements.txt pygit2
+"../ComfyUI`n" + (Get-Content .\python310._pth -Raw) | Set-Content .\python310._pth
+cd ..
+
+
+mkdir ComfyUI_windows_portable
+mv python_embeded ComfyUI_windows_portable_nightly_pytorch
+mv ComfyUI_copy ComfyUI_windows_portable_nightly_pytorch/ComfyUI
+
+cd ComfyUI_windows_portable_nightly_pytorch
+
+mkdir update
+cp ComfyUI/.ci/nightly/update_windows/* ./update/
+cp ComfyUI/.ci/nightly/windows_base_files/* ./
+
+cd ..
+
+& "C:\Program Files\7-Zip\7z.exe" a -t7z -m0=lzma -mx=8 -mfb=64 -md=32m -ms=on ComfyUI_windows_portable_nightly_pytorch.7z ComfyUI_windows_portable_nightly_pytorch
+mv ComfyUI_windows_portable_nightly_pytorch.7z ComfyUI/ComfyUI_windows_portable_nvidia_or_cpu_nightly_pytorch.7z

.github/workflows/windows_release_nightly_pytorch.yml

+name: "Windows Release Nightly pytorch"
+
+on:
+  workflow_dispatch:
+#  push:
+#    branches:
+#      - master
+
+jobs:
+  build:
+    permissions:
+        contents: "write"
+        packages: "write"
+        pull-requests: "read"
+    runs-on: windows-latest
+    steps:
+        - uses: actions/checkout@v3
+          with:
+            fetch-depth: 0
+
+        - run: |
+            cd ..
+            cp ComfyUI/.ci/setup_windows_zip_nightly_pytorch.ps1 ./
+            cp -r ComfyUI ComfyUI_copy
+            .\setup_windows_zip_nightly_pytorch.ps1
+            ls
+
+        - name: Upload binaries to release
+          uses: svenstaro/upload-release-action@v2
+          with:
+                repo_token: ${{ secrets.GITHUB_TOKEN }}
+                file: ComfyUI_windows_portable_nvidia_or_cpu_nightly_pytorch.7z
+                tag: "latest"
+                overwrite: true