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annotate mrjunejune/inference/litellm_proxy.py @ 260:1f9877b637e9

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Add Copilot-powered cyberpunk JRPG chat Integrate the production JRPG chat with Seobeo streaming, Deita persistence, and a Bazel-managed Copilot SDK and LiteLLM inference stack. Co-authored-by: Copilot <[email protected]>
author MrJuneJune <mrjunejune@users.noreply.github.com>
date Wed, 05 Aug 2026 09:19:41 -0700
parents
children
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260
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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1 from __future__ import annotations
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2
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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3 import argparse
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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4 import asyncio
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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5 import json
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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6 import os
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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7 import pathlib
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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8 from collections.abc import AsyncIterator, Awaitable, Callable
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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9 from typing import Any
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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10
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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11 import litellm
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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12 import uvicorn
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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13 import yaml
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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14 from fastapi import FastAPI, HTTPException, Request
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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15 from fastapi.responses import JSONResponse, StreamingResponse
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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16
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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17 Completion = Callable[..., Awaitable[Any]]
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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18
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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19
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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20 def resolve_token_directory(explicit: str | None = None) -> pathlib.Path:
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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21 if explicit:
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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22 return pathlib.Path(explicit).expanduser().resolve()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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23 configured = os.environ.get("GITHUB_COPILOT_TOKEN_DIR")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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24 if configured:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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25 return pathlib.Path(configured).expanduser().resolve()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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26 state_root = os.environ.get("MRJUNEJUNE_INFERENCE_STATE")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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27 if state_root:
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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28 return (
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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29 pathlib.Path(state_root).expanduser().resolve()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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30 / "litellm-copilot"
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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31 )
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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32 xdg_state = os.environ.get("XDG_STATE_HOME")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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33 root = (
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34 pathlib.Path(xdg_state).expanduser()
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35 if xdg_state
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36 else pathlib.Path.home() / ".local" / "state"
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MrJuneJune <mrjunejune@users.noreply.github.com>
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37 )
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38 return (root / "mrjunejune" / "inference" / "litellm-copilot").resolve()
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39
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40
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41 def _serialize(value: Any) -> dict[str, Any]:
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42 if hasattr(value, "model_dump"):
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MrJuneJune <mrjunejune@users.noreply.github.com>
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43 return value.model_dump(exclude_none=True)
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MrJuneJune <mrjunejune@users.noreply.github.com>
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44 if hasattr(value, "dict"):
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MrJuneJune <mrjunejune@users.noreply.github.com>
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45 return value.dict()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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46 if isinstance(value, dict):
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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47 return value
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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48 raise TypeError("LiteLLM returned an unsupported response")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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49
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50
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MrJuneJune <mrjunejune@users.noreply.github.com>
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51 def create_app(
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MrJuneJune <mrjunejune@users.noreply.github.com>
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52 completion: Completion = litellm.acompletion,
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MrJuneJune <mrjunejune@users.noreply.github.com>
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53 *,
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MrJuneJune <mrjunejune@users.noreply.github.com>
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54 model_alias: str = "jrpg-copilot",
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MrJuneJune <mrjunejune@users.noreply.github.com>
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55 upstream_model: str = "github_copilot/gpt-4",
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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56 ) -> FastAPI:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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57 app = FastAPI(docs_url=None, redoc_url=None, openapi_url=None)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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58
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MrJuneJune <mrjunejune@users.noreply.github.com>
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59 @app.get("/health/liveliness")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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60 async def health() -> dict[str, str]:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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61 return {"status": "ready"}
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MrJuneJune <mrjunejune@users.noreply.github.com>
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62
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63 @app.get("/health/readiness")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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64 async def readiness() -> dict[str, str]:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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65 from litellm.llms.github_copilot.authenticator import Authenticator
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MrJuneJune <mrjunejune@users.noreply.github.com>
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66
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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67 try:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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68 await asyncio.to_thread(Authenticator().get_api_key)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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69 except Exception as error:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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70 raise HTTPException(
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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71 status_code=503,
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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72 detail="GitHub Copilot authentication unavailable",
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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73 ) from error
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MrJuneJune <mrjunejune@users.noreply.github.com>
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74 return {"status": "ready"}
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MrJuneJune <mrjunejune@users.noreply.github.com>
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75
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76 @app.post("/v1/chat/completions")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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77 async def chat(request: Request):
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78 master_key = os.environ.get("LITELLM_MASTER_KEY", "")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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79 authorization = request.headers.get("Authorization", "")
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80 if not master_key or authorization != f"Bearer {master_key}":
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MrJuneJune <mrjunejune@users.noreply.github.com>
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81 raise HTTPException(status_code=401, detail="Invalid gateway key")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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82
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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83 payload = await request.json()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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84 if not isinstance(payload, dict) or payload.get("model") != model_alias:
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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85 raise HTTPException(status_code=400, detail="Unknown model alias")
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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86 payload = dict(payload)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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87 payload["model"] = upstream_model
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MrJuneJune <mrjunejune@users.noreply.github.com>
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88 configured_max = int(os.environ.get("LITELLM_MAX_OUTPUT_TOKENS", "1024"))
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MrJuneJune <mrjunejune@users.noreply.github.com>
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89 requested_max = payload.get("max_tokens")
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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90 if not isinstance(requested_max, int) or requested_max > configured_max:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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91 payload["max_tokens"] = configured_max
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
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92
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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93 try:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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94 response = await completion(**payload)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
95 except Exception as error:
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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96 raise HTTPException(
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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97 status_code=502,
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MrJuneJune <mrjunejune@users.noreply.github.com>
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98 detail="GitHub Copilot provider request failed",
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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99 ) from error
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MrJuneJune <mrjunejune@users.noreply.github.com>
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100
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MrJuneJune <mrjunejune@users.noreply.github.com>
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101 if payload.get("stream"):
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MrJuneJune <mrjunejune@users.noreply.github.com>
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102 async def events() -> AsyncIterator[str]:
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103 async for chunk in response:
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104 yield (
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105 "data: "
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
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106 + json.dumps(_serialize(chunk), separators=(",", ":"))
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107 + "\n\n"
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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108 )
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109 yield "data: [DONE]\n\n"
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110
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111 return StreamingResponse(events(), media_type="text/event-stream")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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112 return JSONResponse(_serialize(response))
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113
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114 return app
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115
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116
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117 def _load_model(config_path: str) -> tuple[str, str]:
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118 with open(config_path, encoding="utf-8") as config_file:
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119 config = yaml.safe_load(config_file)
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MrJuneJune <mrjunejune@users.noreply.github.com>
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120 models = config.get("model_list", [])
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MrJuneJune <mrjunejune@users.noreply.github.com>
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121 if len(models) != 1:
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122 raise ValueError("LiteLLM config must contain exactly one model")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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123 model = models[0]
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MrJuneJune <mrjunejune@users.noreply.github.com>
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124 return model["model_name"], model["litellm_params"]["model"]
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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125
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126
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127 def main() -> None:
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MrJuneJune <mrjunejune@users.noreply.github.com>
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128 parser = argparse.ArgumentParser(description="Minimal LiteLLM gateway")
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MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
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129 parser.add_argument("--host", default="127.0.0.1")
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130 parser.add_argument("--port", type=int, default=4000)
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131 parser.add_argument("--config")
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MrJuneJune <mrjunejune@users.noreply.github.com>
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diff changeset
132 parser.add_argument("--authenticate", action="store_true")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
133 parser.add_argument(
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
134 "--token-dir",
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
135 help=(
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
136 "Persistent GitHub Copilot token directory. Defaults to "
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
137 "GITHUB_COPILOT_TOKEN_DIR, MRJUNEJUNE_INFERENCE_STATE, or "
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
138 "~/.local/state/mrjunejune/inference/litellm-copilot."
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
139 ),
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
140 )
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
141 args = parser.parse_args()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
142 if args.authenticate:
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
143 from litellm.llms.github_copilot.authenticator import Authenticator
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
144
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
145 token_directory = resolve_token_directory(args.token_dir)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
146 token_directory.mkdir(parents=True, exist_ok=True, mode=0o700)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
147 token_directory.chmod(0o700)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
148 os.environ["GITHUB_COPILOT_TOKEN_DIR"] = str(token_directory)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
149 authenticator = Authenticator()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
150 authenticator.get_access_token()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
151 authenticator.get_api_key()
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
152 print(f"GitHub Copilot authentication stored in {token_directory}")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
153 return
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
154 if not args.config:
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
155 parser.error("--config is required unless --authenticate is used")
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
156 model_alias, upstream_model = _load_model(args.config)
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
157 uvicorn.run(
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
158 create_app(model_alias=model_alias, upstream_model=upstream_model),
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
159 host=args.host,
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
160 port=args.port,
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
161 access_log=False,
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
162 )
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
163
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
164
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
165 if __name__ == "__main__":
1f9877b637e9 Add Copilot-powered cyberpunk JRPG chat
MrJuneJune <mrjunejune@users.noreply.github.com>
parents:
diff changeset
166 main()