feat: Add custom node management and additional configuration options in entrypoint.sh

This commit introduces several enhancements to the `entrypoint.sh` script for the Comfy service:

1. **Custom Node Management**: Added logic to update custom nodes located in `/data/config/comfy/custom_nodes/`. If the `UPDATE_CUSTOM_NODES` environment variable is set to `true`, it will pull the latest changes from each node's Git repository and update submodules recursively for specific nodes like `krita-ai-diffusion`.

2. **Environment Variable Usage**: Introduced a new environment variable `CACHE` which should be used instead of hardcoding `/root/.cache`. This makes the script more flexible and configurable.

3. **Krita Integration**: Added support for Krita integration with ComfyUI, including downloading models if `KRITA_DOWNLOAD_MODELS` is set to `true`, managing upscale models, and setting up symbolic links for model directories.

4. **GGUF, XFLUX, CNAUX, IPAPLUS, INPAINT, TOOLING Support**: Included logic to handle additional custom nodes (`ComfyUI-GGUF`, `x-flux-comfyui`, `comfyui_controlnet_aux`, `ComfyUI_IPAdapter_plus`, `comfyui-inpaint-nodes`, `comfyui-tooling-nodes`) based on their respective environment variables (`USE_GGUF`, `USE_XFLUX`, `USE_CNAUX`, `USE_IPAPLUS`, `USE_INPAINT`, `USE_TOOLING`). These nodes are moved to the custom nodes directory if they don't already exist.

5. **Model Management**: Added functionality to download and manage specific models required by certain integrations, such as CLIP Vision and IP Adapters for XFLUX.

These changes enhance the script's flexibility, making it easier to integrate additional features and manage dependencies dynamically based on environment configurations.

services/comfy/entrypoint.sh

@@ -2,11 +2,12 @@
 
 set -Eeuo pipefail
 
-mkdir -vp /data/config/comfy/custom_nodes
+CUSTOM_NODES="/data/config/comfy/custom_nodes"
+mkdir -vp "${CUSTOM_NODES}"
 
 declare -A MOUNTS
 
-MOUNTS["/root/.cache"]="/data/.cache"
+MOUNTS["${CACHE}"]="/data/.cache"
 MOUNTS["${ROOT}/input"]="/data/config/comfy/input"
 MOUNTS["${ROOT}/output"]="/output/comfy"
 
@@ -22,6 +23,54 @@ for to_path in "${!MOUNTS[@]}"; do
   echo Mounted $(basename "${from_path}")
 done
 
+if [ "${UPDATE_CUSTOM_NODES:-false}" = "true" ]; then
+  find /data/config/comfy/custom_nodes/ -mindepth 1 -maxdepth 1 -type d | while read NODE
+    do echo "---- ${NODE##*/} ----"
+    cd $NODE && git pull;
+    [ "${NODE##*/}" = "krita-ai-diffusion" ] && git submodule update --recursive; cd ..
+  done
+fi
+
+if [ "${USE_KRITA}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/krita-ai-diffusion" ] && cp -a "${ROOT}/krita-ai-diffusion" "${CUSTOM_NODES}"/
+  if [ "${KRITA_DOWNLOAD_MODELS:-false}" = "true" ]; then
+    cd "${ROOT}/krita-ai-diffusion/scripts" && python3 download_models.py --verbose --retry-attempts 10 --continue-on-error --recommended /data && cd ..
+  fi
+  [ -d "${ROOT}/models/upscale_models" ] && rm -rf "${ROOT}/models/upscale_models"
+  if [ ! -L "${ROOT}/models/upscale_models" ]; then
+    cd "${ROOT}/models"
+    ln -sfT /data/models/upscale_models upscale_models
+  fi
+fi
+if [ "${USE_GGUF}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/ComfyUI-GGUF" ] && mv "${ROOT}/ComfyUI-GGUF" "${CUSTOM_NODES}"/
+fi
+if [ "${USE_XFLUX}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/x-flux-comfyui" ] && mv "${ROOT}/x-flux-comfyui" "${CUSTOM_NODES}"/
+  [ ! -e "/data/models/clip_vision" ] && mkdir -p /data/models/clip_vision
+  [ ! -e "/data/models/clip_vision/model.safetensors" ] && cd /data/models/clip_vision && \
+    python3 -c 'import sys; from urllib.request import urlopen; from pathlib import Path; Path(sys.argv[2]).write_bytes(urlopen(sys.argv[1]).read())' \
+      "https://huggingface.co/openai/clip-vit-large-patch14/resolve/main/model.safetensors" "model.safetensors"
+  [ ! -e "/data/models/xlabs" ] && mkdir -p /data/models/xlabs/{ipadapters,loras,controlnets}
+  [ ! -e "/data/models/xlabs/ipadapters/flux-ip-adapter.safetensors" ] && cd /data/models/xlabs/ipadapters && \
+    python3 -c 'import sys; from urllib.request import urlopen; from pathlib import Path; Path(sys.argv[2]).write_bytes(urlopen(sys.argv[1]).read())' \
+      "https://huggingface.co/XLabs-AI/flux-ip-adapter/resolve/main/ip_adapter.safetensors" "flux-ip-adapter.safetensors"
+  [ -d "${ROOT}/models/xlabs" ] && rm -rf "${ROOT}/models/xlabs"
+  [ ! -e "${ROOT}/models/xlabs" ] && cd "${ROOT}/models" && ln -sT /data/models/xlabs xlabs && cd ..
+fi
+if [ "${USE_CNAUX}" = "true" ] || [ "${USE_KRITA}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/comfyui_controlnet_aux" ] && mv "${ROOT}/comfyui_controlnet_aux" "${CUSTOM_NODES}"/
+fi
+if [ "${USE_IPAPLUS}" = "true" ] || [ "${USE_KRITA}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/ComfyUI_IPAdapter_plus" ] && mv "${ROOT}/ComfyUI_IPAdapter_plus" "${CUSTOM_NODES}"/
+fi
+if [ "${USE_INPAINT}" = "true" ] || [ "${USE_KRITA}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/comfyui-inpaint-nodes" ] && mv "${ROOT}/comfyui-inpaint-nodes" "${CUSTOM_NODES}"/
+fi
+if [ "${USE_TOOLING}" = "true" ] || [ "${USE_KRITA}" = "true" ]; then
+  [ ! -e "${CUSTOM_NODES}/comfyui-tooling-nodes" ] && mv "${ROOT}/comfyui-tooling-nodes" "${CUSTOM_NODES}"/
+fi
+
 if [ -f "/data/config/comfy/startup.sh" ]; then
   pushd ${ROOT}
   . /data/config/comfy/startup.sh