Revert most launch.py changes, add mac user script

    xformers = '--xformers' in sys.argv

    ngrok = '--ngrok' in sys.argv

    if platform.system() == 'Darwin':

        os.environ["PYTORCH_ENABLE_MPS_FALLBACK"] = "1"

        torch_command = os.environ.get('TORCH_COMMAND', "pip install torch==1.12.1 torchvision==0.13.1")

        k_diffusion_repo = os.environ.get('K_DIFFUSION_REPO', 'https://github.com/brkirch/k-diffusion.git')

        k_diffusion_commit_hash = os.environ.get('K_DIFFUSION_COMMIT_HASH', "51c9778f269cedb55a4d88c79c0246d35bdadb71")

        if os.environ.get('COMMANDLINE_ARGS') == None:

            if '--use-cpu' in sys.argv:

                idx = sys.argv.index('--use-cpu')

                if idx < len(sys.argv) and sys.argv[idx+1][0] != '-':

                    sys.argv.insert(idx+1, 'interrogate')

            else:

                sys.argv += ['--use-cpu', 'interrogate']

            sys.argv.append('--no-half')

    try:

        commit = run(f"{git} rev-parse HEAD").strip()

    except Exception:

    if not is_installed("torch") or not is_installed("torchvision"):

        run(f'"{python}" -m {torch_command}', "Installing torch and torchvision", "Couldn't install torch")

    if not skip_torch_cuda_test and platform.system() != 'Darwin':

    if not skip_torch_cuda_test:

        run_python("import torch; assert torch.cuda.is_available(), 'Torch is not able to use GPU; add --skip-torch-cuda-test to COMMANDLINE_ARGS variable to disable this check'")

    if not is_installed("gfpgan"):

    if not is_installed("pyngrok") and ngrok:

        run_pip("install pyngrok", "ngrok")

    if platform.system() == 'Darwin' and not is_installed("psutil"):

        run_pip("install psutil", "psutil")

    os.makedirs(dir_repos, exist_ok=True)

    git_clone(stable_diffusion_repo, repo_dir('stable-diffusion-stability-ai'), "Stable Diffusion", stable_diffusion_commit_hash)

#!/bin/bash

####################################################################

#                          macOS defaults                          #

# Please modify webui-user.sh to change these instead of this file #

####################################################################

export COMMANDLINE_ARGS="--skip-torch-cuda-test --no-half --use-cpu interrogate"

export TORCH_COMMAND="pip install torch==1.12.1 torchvision==0.13.1"

export K_DIFFUSION_REPO="https://github.com/brkirch/k-diffusion.git"

export K_DIFFUSION_COMMIT_HASH="51c9778f269cedb55a4d88c79c0246d35bdadb71"

export PYTORCH_ENABLE_MPS_FALLBACK=1

####################################################################

# change the variables in webui-user.sh instead #

#################################################

# If run from macOS, load defaults from webui-macos-env.sh

if [[ "$OSTYPE" == "darwin"* ]]; then

    if [[ -f webui-macos-env.sh ]]

        then

        source ./webui-macos-env.sh

    fi

fi

# Read variables from webui-user.sh

# shellcheck source=/dev/null

if [[ -f webui-user.sh ]]