661 lines
28 KiB
Python
661 lines
28 KiB
Python
from __future__ import annotations
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import asyncio
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import logging
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import shutil
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import time
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import uuid
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from collections.abc import Callable
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from datetime import datetime, timedelta, timezone
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from typing import Any
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from .config import Settings
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from .database import Database
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from .steam_api import SteamWorkshopClient, WorkshopDetails
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from .workshop import SteamCmdRunner, directory_size, parse_about_xml, utc_now
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logger = logging.getLogger("uvicorn.error")
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ProgressCallback = Callable[[dict[str, Any]], None]
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class InitialDownloadTimeout(RuntimeError):
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pass
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def _batches(values: list[str], size: int) -> list[list[str]]:
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return [values[index : index + size] for index in range(0, len(values), size)]
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class RefreshService:
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def __init__(
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self,
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settings: Settings,
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database: Database,
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steam: SteamWorkshopClient | None = None,
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runner: SteamCmdRunner | None = None,
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):
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self.settings = settings
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self.database = database
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self.steam = steam or SteamWorkshopClient()
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self.runner = runner or SteamCmdRunner(
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settings.steamcmd_path,
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settings.workshop_content_dir,
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settings.steamcmd_timeout_seconds,
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)
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def needs_initial_download(self) -> bool:
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rows = self.database.current_mods()
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if not rows:
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return True
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for row in rows:
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if row.get("status") == "skipped":
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continue
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if row.get("status") != "ready" or not (
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self.settings.workshop_content_dir / row["workshop_id"]
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).is_dir():
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return True
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return False
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def _store_metadata(
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self,
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detail: WorkshopDetails,
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previous: dict[str, Any] | None,
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stale: bool,
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skip_reason: str | None = None,
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) -> dict[str, Any]:
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invalid_reason = skip_reason
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if invalid_reason is None and detail.result != 1:
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invalid_reason = f"Steam returned result {detail.result}"
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elif invalid_reason is None and detail.consumer_app_id not in (0, 294100):
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invalid_reason = f"Workshop item belongs to app {detail.consumer_app_id}"
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return {
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"workshop_id": detail.workshop_id,
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"title": detail.title,
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"package_id": None,
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"steam_app_id": None,
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"display_name": None,
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"time_updated": detail.time_updated,
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"metadata_file_size": detail.file_size,
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"disk_size": None,
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"local_path": None,
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"status": "skipped"
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if invalid_reason
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else ("pending" if stale else (previous or {}).get("status", "pending")),
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"error": invalid_reason,
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"last_checked_at": utc_now(),
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"last_downloaded_at": None,
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}
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def _inspection_values(
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self,
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workshop_id: str,
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downloaded: bool,
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forced_error: str | None = None,
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) -> tuple[bool, dict[str, Any]]:
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mod_path = self.settings.workshop_content_dir / workshop_id
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if forced_error:
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return False, {
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"workshop_id": workshop_id,
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"status": "failed",
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"error": forced_error,
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"disk_size": directory_size(mod_path),
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"local_path": str(mod_path) if mod_path.exists() else None,
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"last_checked_at": utc_now(),
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"last_downloaded_at": utc_now() if downloaded else None,
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}
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try:
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parsed = parse_about_xml(mod_path)
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return True, {
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"workshop_id": workshop_id,
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"package_id": parsed.package_id,
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"steam_app_id": parsed.declared_steam_app_id,
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"display_name": parsed.display_name,
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"disk_size": directory_size(mod_path),
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"local_path": str(mod_path),
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"status": "ready",
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"error": "",
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"last_checked_at": utc_now(),
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"last_downloaded_at": utc_now() if downloaded else None,
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}
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except (OSError, ValueError) as error:
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return False, {
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"workshop_id": workshop_id,
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"status": "failed",
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"error": str(error),
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"disk_size": directory_size(mod_path),
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"local_path": str(mod_path) if mod_path.exists() else None,
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"last_checked_at": utc_now(),
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"last_downloaded_at": utc_now() if downloaded else None,
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}
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def refresh(
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self,
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run_id: str,
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trigger: str,
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*,
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initial_download: bool = False,
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overall_timeout_seconds: int | None = None,
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progress: ProgressCallback | None = None,
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) -> None:
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started_at = utc_now()
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started = time.monotonic()
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deadline = (
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started + overall_timeout_seconds
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if initial_download and overall_timeout_seconds is not None
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else None
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)
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self.database.create_run(run_id, trigger, started_at)
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metrics: dict[str, Any] = {
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"collection_items": 0,
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"unique_items": 0,
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"ready_items": 0,
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"downloads_requested": 0,
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"downloads_succeeded": 0,
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"downloads_failed": 0,
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"bytes_before": directory_size(self.settings.workshop_content_dir),
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"bytes_after": 0,
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"bytes_downloaded": 0,
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"cache_bytes": 0,
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"status": "failed",
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"error": None,
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}
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def report(**values: Any) -> None:
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if progress:
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progress(values)
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def remaining_time() -> float | None:
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if deadline is None:
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return None
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remaining = deadline - time.monotonic()
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if remaining <= 0:
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raise InitialDownloadTimeout(
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"The initial Workshop download reached its "
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f"{overall_timeout_seconds}-second limit"
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)
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return remaining
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try:
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report(stage="collections", completed_mods=0, total_mods=0, percent=0.0)
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remaining_time()
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collection_ids = list(self.settings.collections.values())
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response, collection_reference_ids = self.steam.get_collections(collection_ids)
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named_collections: dict[str, tuple[str, list[str]]] = {}
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all_ids: list[str] = []
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for name, collection_id in self.settings.collections.items():
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workshop_ids = response.get(collection_id)
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if workshop_ids is None:
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raise RuntimeError(
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f"Steam did not return collection {collection_id}"
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)
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named_collections[name] = (collection_id, workshop_ids)
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all_ids.extend(workshop_ids)
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self.database.replace_collection_members(named_collections)
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unique_ids = sorted(set(all_ids), key=int)
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metrics["collection_items"] = len(all_ids)
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metrics["unique_items"] = len(unique_ids)
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details = self.steam.get_item_details(unique_ids)
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previous = self.database.mod_map(unique_ids)
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targets: list[str] = []
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metadata_rows: list[dict[str, Any]] = []
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for workshop_id in unique_ids:
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detail = details.get(workshop_id)
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if not detail:
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self.database.upsert_mod(
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{
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"workshop_id": workshop_id,
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"status": "skipped",
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"error": "Steam returned no item metadata",
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"last_checked_at": utc_now(),
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}
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)
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continue
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old = previous.get(workshop_id)
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local_path = self.settings.workshop_content_dir / workshop_id
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stale = (
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old is None
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or int(old.get("time_updated") or 0) != detail.time_updated
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or old.get("status") != "ready"
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or not local_path.is_dir()
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)
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skip_reason = (
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"Workshop entry is a collection reference"
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if workshop_id in collection_reference_ids
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else None
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)
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metadata_rows.append(
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self._store_metadata(detail, old, stale, skip_reason=skip_reason)
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)
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if (
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detail.result == 1
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and detail.consumer_app_id in (0, 294100)
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and workshop_id not in collection_reference_ids
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and stale
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):
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targets.append(workshop_id)
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self.database.upsert_mods(metadata_rows)
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metrics["downloads_requested"] = len(targets)
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total_targets = len(targets)
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completed_targets = 0
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current_after_metadata = self.database.mod_map(unique_ids)
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resolved_before = sum(
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1
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for row in current_after_metadata.values()
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if row.get("status") in {"ready", "skipped"}
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)
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progress_total = len(unique_ids) if initial_download else total_targets
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progress_completed = resolved_before if initial_download else 0
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title_by_id = {
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workshop_id: details[workshop_id].title
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for workshop_id in targets
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if workshop_id in details
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}
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report(
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stage="downloading" if targets else "inspecting",
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completed_mods=progress_completed,
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total_mods=progress_total,
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percent=round(
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(progress_completed / max(progress_total, 1)) * 100, 1
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)
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if progress_total
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else 100.0,
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)
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if initial_download:
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logger.info(
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"Initial Workshop download started: %d mods need download, "
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"%d/%d collection entries already resolved, %.1f-hour hard limit",
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total_targets,
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resolved_before,
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len(unique_ids),
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(overall_timeout_seconds or 0) / 3600,
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)
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if targets:
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remaining_bytes = sum(
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max(int(details[workshop_id].file_size or 0), 0)
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for workshop_id in targets
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if workshop_id in details
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)
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workshop_root = self.settings.workshop_content_dir.parent.parent
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workshop_root.mkdir(parents=True, exist_ok=True)
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free_bytes = shutil.disk_usage(workshop_root).free
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required_bytes = int(remaining_bytes * 1.1)
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logger.info(
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"Workshop capacity check: %.2f GiB expected, %.2f GiB free",
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remaining_bytes / (1024**3),
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free_bytes / (1024**3),
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)
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if required_bytes and free_bytes < required_bytes:
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raise RuntimeError(
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"Insufficient Workshop volume space: "
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f"{free_bytes / (1024**3):.2f} GiB free, "
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f"approximately {required_bytes / (1024**3):.2f} GiB required"
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)
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if targets and not self.runner.available():
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reason = (
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f"SteamCMD was not found at '{self.settings.steamcmd_path}'. "
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"Set STEAMCMD_PATH to enable anonymous downloads."
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)
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inspection_rows: list[dict[str, Any]] = []
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for workshop_id in targets:
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mod_path = self.settings.workshop_content_dir / workshop_id
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success, values = self._inspection_values(
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workshop_id,
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downloaded=False,
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forced_error=None if mod_path.is_dir() else reason,
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)
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inspection_rows.append(values)
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if not success:
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metrics["downloads_failed"] += 1
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self.database.upsert_mods(inspection_rows)
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else:
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download_queue = list(targets)
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ready_target_ids: set[str] = set()
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batch_number = 0
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pass_number = 1
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while download_queue:
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# SteamCMD stops processing the rest of a command when one
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# Workshop item times out. Keep the first pass efficient,
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# then isolate every remaining item so one bad mod cannot
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# permanently block the items that followed it in a batch.
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pass_batch_size = (
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self.settings.steamcmd_batch_size if pass_number == 1 else 1
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)
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batches = _batches(download_queue, pass_batch_size)
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if pass_number > 1:
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logger.info(
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"Initial Workshop download retry pass %d is "
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"isolating %d remaining mods individually",
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pass_number,
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len(download_queue),
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)
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for pass_batch_number, batch in enumerate(batches, start=1):
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remaining = remaining_time()
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batch_number += 1
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logger.info(
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"%s pass %d batch %d/%d starting (%d mods): %s",
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"Initial Workshop download"
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if initial_download
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else "Workshop refresh",
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pass_number,
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pass_batch_number,
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len(batches),
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len(batch),
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", ".join(
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f"{title_by_id.get(workshop_id, 'Unknown mod')} "
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f"[{workshop_id}]"
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for workshop_id in batch
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),
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)
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result = self.runner.run_batch(
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batch, timeout_seconds=remaining
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)
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if result.status != "completed":
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logger.warning(
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"SteamCMD pass %d batch %d/%d finished with "
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"status=%s exit_code=%s after %.1fs. Output:\n%s",
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pass_number,
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pass_batch_number,
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len(batches),
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result.status,
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result.exit_code,
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result.elapsed_seconds,
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result.output_tail or "(no SteamCMD output)",
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)
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if result.has_io_failure:
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recover = getattr(self.runner, "recover_io_failure", None)
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moved = recover() if callable(recover) else []
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if moved:
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logger.warning(
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"SteamCMD I/O recovery quarantined transient "
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"Workshop state: %s",
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", ".join(str(path) for path in moved),
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)
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self.database.add_download_attempt(
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{
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"run_id": run_id,
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"batch_number": batch_number,
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"item_count": len(batch),
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"workshop_ids": batch,
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"started_at": result.started_at,
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"finished_at": result.finished_at,
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"elapsed_seconds": result.elapsed_seconds,
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"exit_code": result.exit_code,
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"status": result.status,
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"output_tail": result.output_tail,
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}
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)
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inspection_rows = []
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for workshop_id in batch:
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failure = (
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(
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"SteamCMD did not complete this item; "
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"queued for retry"
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if initial_download
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else "SteamCMD reported a download failure"
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)
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if workshop_id in result.failed_ids
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else None
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)
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success, values = self._inspection_values(
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workshop_id, downloaded=True, forced_error=failure
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)
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inspection_rows.append(values)
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if success:
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metrics["downloads_succeeded"] += 1
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ready_target_ids.add(workshop_id)
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else:
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metrics["downloads_failed"] += 1
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completed_targets = len(ready_target_ids)
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progress_completed = (
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resolved_before + completed_targets
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if initial_download
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else completed_targets
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)
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percent = round(
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(progress_completed / max(progress_total, 1)) * 100,
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1,
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)
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title = title_by_id.get(workshop_id, "Unknown mod")
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outcome = (
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"ready"
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if success
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else ("retrying" if initial_download else "failed")
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)
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report(
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stage="downloading",
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completed_mods=progress_completed,
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total_mods=progress_total,
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percent=percent,
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current_workshop_id=workshop_id,
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current_title=title,
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current_status=outcome,
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)
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logger.info(
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"%s %d/%d (%.1f%%) %s: %s [%s]",
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"Initial mod download"
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if initial_download
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else "Mod refresh",
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progress_completed,
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progress_total,
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percent,
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outcome,
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title,
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workshop_id,
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)
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self.database.upsert_mods(inspection_rows)
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remaining_time()
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if not initial_download:
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break
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download_queue = [
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workshop_id
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for workshop_id in download_queue
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if workshop_id not in ready_target_ids
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]
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if download_queue:
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remaining = remaining_time()
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retry_delay = min(30.0, remaining or 30.0)
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logger.warning(
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"Initial Workshop download pass %d left %d mods; "
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"retrying in %.0f seconds",
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pass_number,
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len(download_queue),
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retry_delay,
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)
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time.sleep(retry_delay)
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remaining_time()
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pass_number += 1
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|
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# Re-inspect ready cached items whose metadata has never been parsed by this backend.
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current = self.database.mod_map(unique_ids)
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pending_rows = []
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for workshop_id in unique_ids:
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row = current.get(workshop_id)
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if row and row.get("status") == "pending":
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_, values = self._inspection_values(workshop_id, downloaded=False)
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pending_rows.append(values)
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if pending_rows:
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self.database.upsert_mods(pending_rows)
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metrics["bytes_after"] = directory_size(self.settings.workshop_content_dir)
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metrics["cache_bytes"] = metrics["bytes_after"]
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metrics["bytes_downloaded"] = max(
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metrics["bytes_after"] - metrics["bytes_before"], 0
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)
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final_rows = self.database.mod_map(unique_ids)
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metrics["ready_items"] = sum(
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1 for row in final_rows.values() if row.get("status") == "ready"
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)
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resolved_items = sum(
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1
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for row in final_rows.values()
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if row.get("status") in {"ready", "skipped"}
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)
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metrics["status"] = (
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"completed"
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if resolved_items == metrics["unique_items"]
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else "partial"
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)
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if metrics["status"] == "partial" and not metrics["error"]:
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metrics["error"] = (
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f"{metrics['unique_items'] - resolved_items} items are not resolved"
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)
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report(
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stage=metrics["status"],
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completed_mods=resolved_items,
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total_mods=metrics["unique_items"],
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percent=round(
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(resolved_items / max(metrics["unique_items"], 1)) * 100, 1
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)
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if metrics["unique_items"]
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else 100.0,
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)
|
|
except Exception as error: # noqa: BLE001 - the run must always persist a terminal state
|
|
metrics["status"] = "failed"
|
|
metrics["error"] = str(error)
|
|
metrics["bytes_after"] = directory_size(self.settings.workshop_content_dir)
|
|
metrics["cache_bytes"] = metrics["bytes_after"]
|
|
metrics["bytes_downloaded"] = max(
|
|
metrics["bytes_after"] - metrics["bytes_before"], 0
|
|
)
|
|
report(stage="failed", error=str(error))
|
|
logger.error(
|
|
"%s failed: %s",
|
|
"Initial Workshop download" if initial_download else "Workshop refresh",
|
|
error,
|
|
)
|
|
finally:
|
|
if metrics["unique_items"]:
|
|
metrics["ready_items"] = sum(
|
|
1
|
|
for row in self.database.current_mods()
|
|
if row.get("status") == "ready"
|
|
)
|
|
elapsed = max(time.monotonic() - started, 0.001)
|
|
metrics["elapsed_seconds"] = round(elapsed, 3)
|
|
metrics["average_mbps"] = round(
|
|
(metrics["bytes_downloaded"] * 8 / 1_000_000) / elapsed, 3
|
|
)
|
|
metrics["finished_at"] = utc_now()
|
|
self.database.finish_run(run_id, metrics)
|
|
logger.info(
|
|
"%s finished: status=%s, ready=%d/%d, elapsed=%.1fs, "
|
|
"cache=%d bytes",
|
|
"Initial Workshop download" if initial_download else "Workshop refresh",
|
|
metrics["status"],
|
|
metrics["ready_items"],
|
|
metrics["unique_items"],
|
|
elapsed,
|
|
metrics["cache_bytes"],
|
|
)
|
|
|
|
|
|
class RefreshCoordinator:
|
|
def __init__(
|
|
self,
|
|
service: RefreshService,
|
|
interval_seconds: int,
|
|
refresh_on_startup: bool,
|
|
initial_download_timeout_seconds: int = 43200,
|
|
):
|
|
self.service = service
|
|
self.interval_seconds = interval_seconds
|
|
self.refresh_on_startup = refresh_on_startup
|
|
self.initial_download_timeout_seconds = initial_download_timeout_seconds
|
|
self.current_run_id: str | None = None
|
|
self.next_refresh_at: str | None = None
|
|
self._refresh_task: asyncio.Task[None] | None = None
|
|
self._scheduler_task: asyncio.Task[None] | None = None
|
|
self._stop = asyncio.Event()
|
|
self._active_initial_download = False
|
|
self._progress: dict[str, Any] | None = None
|
|
|
|
async def start(self) -> None:
|
|
if self._scheduler_task:
|
|
return
|
|
self._scheduler_task = asyncio.create_task(self._scheduler_loop())
|
|
|
|
async def stop(self) -> None:
|
|
self._stop.set()
|
|
if self._scheduler_task:
|
|
self._scheduler_task.cancel()
|
|
await asyncio.gather(self._scheduler_task, return_exceptions=True)
|
|
|
|
async def trigger(self, trigger: str) -> tuple[str, bool]:
|
|
if self._refresh_task and not self._refresh_task.done():
|
|
return self.current_run_id or "", False
|
|
run_id = uuid.uuid4().hex
|
|
self.current_run_id = run_id
|
|
initial_download = self.service.needs_initial_download()
|
|
self._active_initial_download = initial_download
|
|
self._progress = {
|
|
"stage": "starting",
|
|
"completed_mods": 0,
|
|
"total_mods": 0,
|
|
"percent": 0.0,
|
|
}
|
|
|
|
def update_progress(values: dict[str, Any]) -> None:
|
|
self._progress = {**(self._progress or {}), **values}
|
|
|
|
async def run() -> None:
|
|
try:
|
|
await asyncio.to_thread(
|
|
self.service.refresh,
|
|
run_id,
|
|
trigger,
|
|
initial_download=initial_download,
|
|
overall_timeout_seconds=(
|
|
self.initial_download_timeout_seconds
|
|
if initial_download
|
|
else None
|
|
),
|
|
progress=update_progress,
|
|
)
|
|
finally:
|
|
self.current_run_id = None
|
|
self._active_initial_download = False
|
|
|
|
self._refresh_task = asyncio.create_task(run())
|
|
return run_id, True
|
|
|
|
async def _wait_for_initial_download(self, started: bool) -> None:
|
|
if started and self._active_initial_download and self._refresh_task:
|
|
self.next_refresh_at = None
|
|
await asyncio.shield(self._refresh_task)
|
|
|
|
async def _scheduler_loop(self) -> None:
|
|
if self.refresh_on_startup:
|
|
_, started = await self.trigger("startup")
|
|
await self._wait_for_initial_download(started)
|
|
while not self._stop.is_set():
|
|
next_time = datetime.now(timezone.utc) + timedelta(
|
|
seconds=self.interval_seconds
|
|
)
|
|
self.next_refresh_at = next_time.isoformat()
|
|
try:
|
|
await asyncio.wait_for(self._stop.wait(), timeout=self.interval_seconds)
|
|
except asyncio.TimeoutError:
|
|
_, started = await self.trigger("scheduled")
|
|
await self._wait_for_initial_download(started)
|
|
|
|
def state(self) -> dict[str, Any]:
|
|
return {
|
|
"running": bool(self._refresh_task and not self._refresh_task.done()),
|
|
"current_run_id": self.current_run_id,
|
|
"next_refresh_at": self.next_refresh_at,
|
|
"interval_seconds": self.interval_seconds,
|
|
"initial_download": bool(
|
|
self._active_initial_download
|
|
and self._refresh_task
|
|
and not self._refresh_task.done()
|
|
),
|
|
"initial_download_timeout_seconds": self.initial_download_timeout_seconds,
|
|
"progress": dict(self._progress) if self._progress else None,
|
|
}
|