InvokeAI/invokeai/app/api/dependencies.py
2023-05-03 22:30:30 -04:00

90 lines
3.0 KiB
Python

# Copyright (c) 2022 Kyle Schouviller (https://github.com/kyle0654)
import os
import invokeai.backend.util.logging as logger
from typing import types
from ..services.default_graphs import create_system_graphs
from ..services.latent_storage import DiskLatentsStorage, ForwardCacheLatentsStorage
from ..services.config import InvokeAIWebConfig
from ..services.model_manager_initializer import get_model_manager
from ..services.restoration_services import RestorationServices
from ..services.graph import GraphExecutionState, LibraryGraph
from ..services.image_storage import DiskImageStorage
from ..services.invocation_queue import MemoryInvocationQueue
from ..services.invocation_services import InvocationServices
from ..services.invoker import Invoker
from ..services.processor import DefaultInvocationProcessor
from ..services.sqlite import SqliteItemStorage
from ..services.metadata import PngMetadataService
from .events import FastAPIEventService
# TODO: is there a better way to achieve this?
def check_internet() -> bool:
"""
Return true if the internet is reachable.
It does this by pinging huggingface.co.
"""
import urllib.request
host = "http://huggingface.co"
try:
urllib.request.urlopen(host, timeout=1)
return True
except:
return False
class ApiDependencies:
"""Contains and initializes all dependencies for the API"""
invoker: Invoker = None
def initialize(config, event_handler_id: int, logger: types.ModuleType=logger):
logger.info(f"Internet connectivity is {config.internet_available}")
events = FastAPIEventService(event_handler_id)
output_folder = os.path.abspath(
os.path.join(os.path.dirname(__file__), "../../../../outputs")
)
latents = ForwardCacheLatentsStorage(DiskLatentsStorage(f'{output_folder}/latents'))
metadata = PngMetadataService()
images = DiskImageStorage(f'{output_folder}/images', metadata_service=metadata)
# TODO: build a file/path manager?
db_location = os.path.join(output_folder, "invokeai.db")
services = InvocationServices(
model_manager=get_model_manager(config,logger),
events=events,
latents=latents,
images=images,
metadata=metadata,
queue=MemoryInvocationQueue(),
graph_library=SqliteItemStorage[LibraryGraph](
filename=db_location, table_name="graphs"
),
graph_execution_manager=SqliteItemStorage[GraphExecutionState](
filename=db_location, table_name="graph_executions"
),
processor=DefaultInvocationProcessor(),
restoration=RestorationServices(config,logger),
configuration=config,
logger=logger,
)
create_system_graphs(services.graph_library)
ApiDependencies.invoker = Invoker(services)
@staticmethod
def shutdown():
if ApiDependencies.invoker:
ApiDependencies.invoker.stop()