new music cog using wavelink

src/cogs/music.py

@@ -0,0 +1,60 @@
+import discord
+from subprocess import Popen, DEVNULL
+from wavelink import Client as wClient
+from discord.ext import commands
+from utils.core import load
+
+def setup(client):
+    client.add_cog(Music(client))
+
+class Music(commands.Cog):
+    """Commandes relatives à la musique."""
+    def __init__(self, client):
+        self.client = client
+        self.keys = load(["PASSWORD_LAVALINK"])
+        print("Démarrage du serveur Lavalink...")
+        Popen(['java', '-jar', 'Lavalink.jar'], stdout = DEVNULL)
+        print("Lavalink prêt")
+
+        if not hasattr(client, 'wavelink'):
+            self.client.wavelink = wClient(bot = self.client)
+
+        self.client.loop.create_task(self.start_nodes())
+
+    async def start_nodes(self):
+        await self.client.wait_until_ready()
+
+        # Initiate our nodes. For this example we will use one server.
+        # Region should be a discord.py guild.region e.g sydney or us_central (Though this is not technically required)
+        await self.client.wavelink.initiate_node(host = "127.0.0.1",
+                                                 port = 2333,
+                                                 rest_uri = "http://127.0.0.1:2333",
+                                                 password = self.keys["TOKEN_REDDIT_CLIENT_ID"],
+                                                 identifier = "TEST",
+                                                 region = "us_central")
+
+    @commands.command(name='connect')
+    async def connect_(self, ctx, *, channel: discord.VoiceChannel = None):
+        if not channel:
+            try:
+                channel = ctx.author.voice.channel
+            except AttributeError:
+                raise discord.DiscordException("Aucun channel à rejoindre. Veuillez soit spécifier un canal valide, soit en rejoindre un.")
+
+        player = self.client.wavelink.get_player(ctx.guild.id)
+        await ctx.send(f"Connexion à **`{channel.name}`**")
+        await player.connect(channel.id)
+
+    @commands.command()
+    async def play(self, ctx, *, query: str):
+        tracks = await self.client.wavelink.get_tracks(f"ytsearch:{query}")
+
+        if not tracks:
+            return await ctx.send("Je n'ai pas trouvé la musique demandé.")
+
+        player = self.client.wavelink.get_player(ctx.guild.id)
+        if not player.is_connected:
+            await ctx.invoke(self.connect_)
+
+        await ctx.send(f"Ajout de {str(tracks[0])} à la file d'attente.")
+        await player.play(tracks[0])