Files
pydn-ComfyUI-to-Python-Exte…/comfyui_to_python/app.py
T
Peyton DeNiro e569e361a6 fix: load comfy_extras nodes even when server.py import fails
server.py cannot load due to a ComfyUI internal module shadowing bug
(comfy/utils.py file shadows utils/ package). Decouple init_extra_nodes()
from server.py loading so NODE_CLASS_MAPPINGS still gets populated from
comfy_extras (UpscaleModelLoader, etc.) even without full PromptServer setup.

Also fix app.py to re-read from cached sys.modules[nodes] after
import_custom_nodes() instead of using stale initial copy.

Fixes the upscale-model-loader runtime e2e test.
2026-05-10 00:45:13 -05:00

84 lines
3.2 KiB
Python

import copy
import sys
from typing import TextIO
from .generator.planner import WorkflowPlanner
from .generator.render import WorkflowRenderer
from .io import write_python_output
from .load_order import LoadOrderDeterminer
from .workflow_loader import load_frontend_workflow_data, load_workflow_data
class ExportApplication:
"""High-level exporter orchestration."""
def __init__(
self,
workflow: str = "",
frontend_workflow: str | dict | None = None,
input_file: str = "",
output_file: str | TextIO = "",
queue_size: int = 1,
node_class_mappings: dict | None = None,
needs_init_custom_nodes: bool = False,
node_mapping_loader=None,
custom_node_importer=None,
):
if input_file and workflow:
raise ValueError("Can't provide both input_file and workflow")
if not input_file and not workflow:
raise ValueError("Needs input_file or workflow")
if not output_file:
raise ValueError("Needs output_file")
self.workflow = workflow
self.frontend_workflow = frontend_workflow
self.input_file = input_file
self.output_file = output_file
self.queue_size = queue_size
self.node_mapping_loader = node_mapping_loader
self.custom_node_importer = custom_node_importer
self.node_class_mappings = (
node_class_mappings
if node_class_mappings is not None
else self.node_mapping_loader()
)
self.needs_init_custom_nodes = needs_init_custom_nodes
self.base_node_class_mappings = copy.deepcopy(self.node_class_mappings)
def execute(self) -> None:
data = load_workflow_data(self.workflow, self.input_file)
metadata_workflow_data = load_frontend_workflow_data(self.frontend_workflow)
missing_node_types = {
node_data["class_type"]
for node_data in data.values()
if node_data["class_type"] not in self.node_class_mappings
}
if self.needs_init_custom_nodes or missing_node_types:
self.custom_node_importer()
# Re-read from the cached "nodes" module in sys.modules after
# import_custom_nodes() populates it with extras (comfy_extras,
# custom node directories, etc.). The original dict is a stale copy.
nodes_mod = sys.modules.get("nodes")
if nodes_mod is not None:
fresh_mappings = getattr(nodes_mod, "NODE_CLASS_MAPPINGS", {})
self.node_class_mappings = fresh_mappings
self.base_node_class_mappings = copy.deepcopy(self.node_class_mappings)
load_order = LoadOrderDeterminer(
data, self.node_class_mappings
).determine_load_order()
plan = WorkflowPlanner(
self.node_class_mappings, self.base_node_class_mappings
).build_plan(
load_order,
data,
metadata_workflow_data,
queue_size=self.queue_size,
)
generated_code = WorkflowRenderer().render(plan)
write_python_output(self.output_file, generated_code)
print(f"Code successfully generated and written to {self.output_file}")