fix: auto-detect RunPod environment and use correct paths

- Automatically detects RunPod environment (checks for /workspace directory)
- Uses RunPod paths by default: /workspace/huggingface_cache and /workspace/ComfyUI/models
- Falls back to local paths (~/.cache/huggingface and ~/ComfyUI/models) on non-RunPod systems
- Updated help text to show both RunPod and local defaults
- Updated example YAML with RunPod paths

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

artifact_comfyui_download.sh

@@ -97,11 +97,16 @@ else
     CONFIG_FILE=""  # No config file by default
 fi
 
-# Default cache directory (use HuggingFace default)
+# Default cache directory - detect RunPod or use HuggingFace default
+if [[ -d "/workspace" ]]; then
+    # RunPod environment
+    CACHE_DIR="${CACHE_DIR:-/workspace/huggingface_cache}"
+    COMFYUI_DIR="${COMFYUI_DIR:-/workspace/ComfyUI/models}"
+else
+    # Local environment
     CACHE_DIR="${CACHE_DIR:-${HOME}/.cache/huggingface}"
-
-# Default ComfyUI models directory
     COMFYUI_DIR="${COMFYUI_DIR:-${HOME}/ComfyUI/models}"
+fi
 
 # Default command
 COMMAND="both"
@@ -727,8 +732,12 @@ while [[ $# -gt 0 ]]; do
             echo ""
             echo "Options:"
             echo "  -c, --config FILE     Configuration file (default: NONE)"
-            echo "  --cache-dir DIR       Cache directory (default: ~/.cache/huggingface)"
+            echo "  --cache-dir DIR       Cache directory (default: auto-detect)"
-            echo "  --comfyui-dir DIR     ComfyUI models directory (default: ~/ComfyUI/models)"
+            echo "                        RunPod: /workspace/huggingface_cache"
+            echo "                        Local: ~/.cache/huggingface"
+            echo "  --comfyui-dir DIR     ComfyUI models directory (default: auto-detect)"
+            echo "                        RunPod: /workspace/ComfyUI/models"
+            echo "                        Local: ~/ComfyUI/models"
             echo "  -h, --help            Show this help message"
             echo ""
             echo "Examples:"

comfyui_models.example.yaml

@@ -0,0 +1,112 @@
+# ComfyUI Models Configuration Example
+#
+# This file defines which models to download from HuggingFace
+# and explicit source->destination file mappings for symlinks.
+#
+# IMPORTANT: Use the 'files' array to specify EXACTLY which files to link
+# and where to link them. Without explicit file mappings, ALL files from
+# the repository will be linked (which causes trash/wrong files).
+#
+# Format:
+#   - repo_id: HuggingFace repository (e.g., "runwayml/stable-diffusion-v1-5")
+#   - description: Human-readable description
+#   - size_gb: Approximate size
+#   - essential: Is this a core model?
+#   - type: ComfyUI subdirectory (checkpoints, vae, loras, controlnet, etc.)
+#   - filename: Optional filter for find_model_files (usually leave empty)
+#   - files: Array of {source: "filename_in_repo", dest: "filename_in_comfyui"}
+#
+# Example:
+#   files:
+#     - source: "v1-5-pruned-emaonly.safetensors"
+#       dest: "sd-v1-5.safetensors"
+#
+# This will create: ComfyUI/models/checkpoints/sd-v1-5.safetensors
+# Pointing to: ~/.cache/huggingface/.../v1-5-pruned-emaonly.safetensors
+
+settings:
+  # RunPod: /workspace/huggingface_cache
+  # Local: ~/.cache/huggingface
+  cache_dir: /workspace/huggingface_cache
+  parallel_downloads: 1
+
+model_categories:
+  # Stable Diffusion Checkpoints
+  checkpoints:
+    - repo_id: runwayml/stable-diffusion-v1-5
+      description: Stable Diffusion v1.5
+      size_gb: 4
+      essential: true
+      type: checkpoints
+      filename: ""
+      files:
+        - source: "v1-5-pruned-emaonly.safetensors"
+          dest: "sd-v1-5.safetensors"
+
+    - repo_id: stabilityai/stable-diffusion-xl-base-1.0
+      description: SDXL Base 1.0
+      size_gb: 7
+      essential: true
+      type: checkpoints
+      filename: ""
+      files:
+        - source: "sd_xl_base_1.0.safetensors"
+          dest: "sdxl-base-1.0.safetensors"
+
+  # VAE Models
+  vae:
+    - repo_id: stabilityai/sd-vae-ft-mse-original
+      description: SD VAE ft MSE
+      size_gb: 0.3
+      essential: true
+      type: vae
+      filename: ""
+      files:
+        - source: "vae-ft-mse-840000-ema-pruned.safetensors"
+          dest: "sd-vae-ft-mse.safetensors"
+
+  # LoRA Models
+  loras:
+    - repo_id: latent-consistency/lcm-lora-sdv1-5
+      description: LCM LoRA for SD v1.5
+      size_gb: 0.1
+      essential: false
+      type: loras
+      filename: ""
+      files:
+        - source: "pytorch_lora_weights.safetensors"
+          dest: "lcm-lora-sdv1-5.safetensors"
+
+  # ControlNet Models
+  controlnet:
+    - repo_id: lllyasviel/control_v11p_sd15_canny
+      description: ControlNet Canny
+      size_gb: 1.4
+      essential: false
+      type: controlnet
+      filename: ""
+      files:
+        - source: "diffusion_pytorch_model.safetensors"
+          dest: "control_v11p_sd15_canny.safetensors"
+
+    - repo_id: lllyasviel/control_v11p_sd15_openpose
+      description: ControlNet OpenPose
+      size_gb: 1.4
+      essential: false
+      type: controlnet
+      filename: ""
+      files:
+        - source: "diffusion_pytorch_model.safetensors"
+          dest: "control_v11p_sd15_openpose.safetensors"
+
+  # Upscale Models
+  upscale_models:
+    - repo_id: ai-forever/Real-ESRGAN
+      description: Real-ESRGAN x4
+      size_gb: 0.1
+      essential: false
+      type: upscale_models
+      filename: ""
+      files:
+        - source: "RealESRGAN_x4plus.pth"
+          dest: "RealESRGAN_x4plus.pth"