Files
romm/backend/endpoints/scan.py
2023-09-09 08:36:52 -04:00

102 lines
3.2 KiB
Python

import emoji
import socketio # type: ignore
from rq import Queue
from logger.logger import log
from utils import fs, fastapi
from exceptions.fs_exceptions import PlatformsNotFoundException, RomsNotFoundException
from handler import dbh
from utils.socket import socket_server
from utils.cache import redis_client, redis_url
from endpoints.platform import PlatformSchema
from endpoints.rom import RomSchema
from config import ENABLE_EXPERIMENTAL_REDIS
scan_queue = Queue(connection=redis_client)
async def scan_platforms(
platform_slugs: list[str], complete_rescan: bool, selected_roms: list[str]
):
# Connect to external socketio server
sm = (
socketio.AsyncRedisManager(redis_url, write_only=True)
if ENABLE_EXPERIMENTAL_REDIS
else socket_server
)
# Scanning file system
try:
fs_platforms: list[str] = fs.get_platforms()
except PlatformsNotFoundException as e:
log.error(e)
await sm.emit("scan:done_ko", e.message)
return
platform_list = [dbh.get_platform(s).fs_slug for s in platform_slugs]
platform_list = platform_list or fs_platforms
for p_slug in platform_list:
try:
# Verify that platform exists
scanned_platform = fastapi.scan_platform(p_slug)
except RomsNotFoundException as e:
log.error(e)
continue
new_platform = dbh.add_platform(scanned_platform)
await sm.emit(
"scan:scanning_platform", PlatformSchema.from_orm(new_platform).dict()
)
dbh.add_platform(scanned_platform)
# Scanning roms
fs_roms = fs.get_roms(scanned_platform.fs_slug)
for fs_rom in fs_roms:
rom_id = dbh.rom_exists(scanned_platform.slug, fs_rom["file_name"])
if rom_id and rom_id not in selected_roms and not complete_rescan:
continue
scanned_rom = fastapi.scan_rom(scanned_platform, fs_rom)
if rom_id:
scanned_rom.id = rom_id
rom = dbh.add_rom(scanned_rom)
await sm.emit(
"scan:scanning_rom",
{
"p_name": scanned_platform.name,
**RomSchema.from_orm(rom).dict(),
},
)
dbh.purge_roms(scanned_platform.slug, [rom["file_name"] for rom in fs_roms])
dbh.update_n_roms(scanned_platform.slug)
dbh.purge_platforms(fs_platforms)
await sm.emit("scan:done", {})
@socket_server.on("scan")
async def scan_handler(_sid: str, options: dict):
"""Scan platforms and roms and write them in database."""
log.info(emoji.emojize(":magnifying_glass_tilted_right: Scanning "))
fs.store_default_resources()
platform_slugs = options.get("platforms", [])
complete_rescan = options.get("rescan", False)
selected_roms = options.get("roms", [])
# Run in worker if redis is available
if ENABLE_EXPERIMENTAL_REDIS:
return scan_queue.enqueue(
scan_platforms,
platform_slugs,
complete_rescan,
selected_roms,
job_timeout=14400, # Timeout after 4 hours
)
else:
await scan_platforms(platform_slugs, complete_rescan, selected_roms)