Toby Harradine df922a0e3e
[Audio] More robust startup and unload (#2118)
* More robust cleanup for audio and streams

Signed-off-by: Toby Harradine <tobyharradine@gmail.com>

* Remove copied code from streams

Signed-off-by: Toby Harradine <tobyharradine@gmail.com>
2018-09-22 15:04:46 +10:00

58 lines
1.8 KiB
Python

from pathlib import Path
from aiohttp import ClientSession
import shutil
import logging
from .audio import Audio
from .manager import start_lavalink_server
from redbot.core import commands
from redbot.core.data_manager import cog_data_path
import redbot.core
log = logging.getLogger("red.audio")
LAVALINK_DOWNLOAD_URL = (
"https://github.com/Cog-Creators/Red-DiscordBot/releases/download/{}/Lavalink.jar"
).format(redbot.core.__version__)
LAVALINK_DOWNLOAD_DIR = cog_data_path(raw_name="Audio")
LAVALINK_JAR_FILE = LAVALINK_DOWNLOAD_DIR / "Lavalink.jar"
APP_YML_FILE = LAVALINK_DOWNLOAD_DIR / "application.yml"
BUNDLED_APP_YML_FILE = Path(__file__).parent / "data/application.yml"
async def download_lavalink(session):
with LAVALINK_JAR_FILE.open(mode="wb") as f:
async with session.get(LAVALINK_DOWNLOAD_URL) as resp:
while True:
chunk = await resp.content.read(512)
if not chunk:
break
f.write(chunk)
async def maybe_download_lavalink(loop, cog):
jar_exists = LAVALINK_JAR_FILE.exists()
current_build = redbot.core.VersionInfo(*await cog.config.current_build())
if not jar_exists or current_build < redbot.core.version_info:
log.info("Downloading Lavalink.jar")
LAVALINK_DOWNLOAD_DIR.mkdir(parents=True, exist_ok=True)
async with ClientSession(loop=loop) as session:
await download_lavalink(session)
await cog.config.current_build.set(redbot.core.version_info.to_json())
shutil.copyfile(str(BUNDLED_APP_YML_FILE), str(APP_YML_FILE))
async def setup(bot: commands.Bot):
cog = Audio(bot)
if not await cog.config.use_external_lavalink():
await maybe_download_lavalink(bot.loop, cog)
await start_lavalink_server(bot.loop)
await cog.initialize()
bot.add_cog(cog)