First stab at IPC based auto sharding

disco/api/client.py

@@ -32,9 +32,13 @@ class APIClient(LoggingClass):
         self.client = client
         self.http = HTTPClient(self.client.config.token)
 
-    def gateway(self, version, encoding):
+    def gateway_get(self):
         data = self.http(Routes.GATEWAY_GET).json()
-        return data['url'] + '?v={}&encoding={}'.format(version, encoding)
+        return data
+
+    def gateway_bot_get(self):
+        data = self.http(Routes.GATEWAY_BOT_GET).json()
+        return data
 
     def channels_get(self, channel):
         r = self.http(Routes.CHANNELS_GET, dict(channel=channel))
@@ -48,6 +52,9 @@ class APIClient(LoggingClass):
         r = self.http(Routes.CHANNELS_DELETE, dict(channel=channel))
         return Channel.create(self.client, r.json())
 
+    def channels_typing(self, channel):
+        self.http(Routes.CHANNELS_TYPING, dict(channel=channel))
+
     def channels_messages_list(self, channel, around=None, before=None, after=None, limit=50):
         r = self.http(Routes.CHANNELS_MESSAGES_LIST, dict(channel=channel), params=optional(
             around=around,

disco/api/http.py

@@ -25,12 +25,14 @@ class Routes(object):
     """
     # Gateway
     GATEWAY_GET = (HTTPMethod.GET, '/gateway')
+    GATEWAY_BOT_GET = (HTTPMethod.GET, '/gateway/bot')
 
     # Channels
     CHANNELS = '/channels/{channel}'
     CHANNELS_GET = (HTTPMethod.GET, CHANNELS)
     CHANNELS_MODIFY = (HTTPMethod.PATCH, CHANNELS)
     CHANNELS_DELETE = (HTTPMethod.DELETE, CHANNELS)
+    CHANNELS_TYPING = (HTTPMethod.POST, CHANNELS + '/typing')
     CHANNELS_MESSAGES_LIST = (HTTPMethod.GET, CHANNELS + '/messages')
     CHANNELS_MESSAGES_GET = (HTTPMethod.GET, CHANNELS + '/messages/{message}')
     CHANNELS_MESSAGES_CREATE = (HTTPMethod.POST, CHANNELS + '/messages')

disco/bot/bot.py

@@ -430,8 +430,8 @@ class Bot(object):
 
     def load_plugin_config(self, cls):
         name = cls.__name__.lower()
-        if name.startswith('plugin'):
-            name = name[6:]
+        if name.endswith('plugin'):
+            name = name[:-6]
 
         path = os.path.join(
             self.config.plugin_config_dir, name) + '.' + self.config.plugin_config_format

disco/cli.py

@@ -18,6 +18,7 @@ parser.add_argument('--config', help='Configuration file', default='config.yaml'
 parser.add_argument('--token', help='Bot Authentication Token', default=None)
 parser.add_argument('--shard-count', help='Total number of shards', default=None)
 parser.add_argument('--shard-id', help='Current shard number/id', default=None)
+parser.add_argument('--shard-auto', help='Automatically run all shards', action='store_true', default=False)
 parser.add_argument('--manhole', action='store_true', help='Enable the manhole', default=None)
 parser.add_argument('--manhole-bind', help='host:port for the manhole to bind too', default=None)
 parser.add_argument('--encoder', help='encoder for gateway data', default=None)
@@ -41,6 +42,7 @@ def disco_main(run=False):
 
     from disco.client import Client, ClientConfig
     from disco.bot import Bot, BotConfig
+    from disco.gateway.sharder import AutoSharder
     from disco.util.token import is_valid_token
 
     if os.path.exists(args.config):
@@ -56,6 +58,10 @@ def disco_main(run=False):
         print('Invalid token passed')
         return
 
+    if args.shard_auto:
+        AutoSharder(config).run()
+        return
+
     client = Client(config)
 
     bot = None

disco/client.py

@@ -37,7 +37,7 @@ class ClientConfig(LoggingClass, Config):
     shard_id = 0
     shard_count = 1
 
-    manhole_enable = True
+    manhole_enable = False
     manhole_bind = ('127.0.0.1', 8484)
 
     encoder = 'json'

disco/gateway/client.py

@@ -17,7 +17,7 @@ class GatewayClient(LoggingClass):
     GATEWAY_VERSION = 6
     MAX_RECONNECTS = 5
 
-    def __init__(self, client, encoder='json'):
+    def __init__(self, client, encoder='json', ipc=None):
         super(GatewayClient, self).__init__()
         self.client = client
         self.encoder = ENCODERS[encoder]
@@ -25,6 +25,11 @@ class GatewayClient(LoggingClass):
         self.events = client.events
         self.packets = client.packets
 
+        # IPC for shards
+        if ipc:
+            self.shards = ipc.get_shards()
+            self.ipc = ipc
+
         # Its actually 60, 120 but lets give ourselves a buffer
         self.limiter = SimpleLimiter(60, 130)
 
@@ -98,14 +103,17 @@ class GatewayClient(LoggingClass):
         self.session_id = ready.session_id
         self.reconnects = 0
 
-    def connect_and_run(self):
-        if not self._cached_gateway_url:
-            self._cached_gateway_url = self.client.api.gateway(
-                version=self.GATEWAY_VERSION,
-                encoding=self.encoder.TYPE)
+    def connect_and_run(self, gateway_url=None):
+        if not gateway_url:
+            if not self._cached_gateway_url:
+                self._cached_gateway_url = self.client.api.gateway_get()['url']
+
+            gateway_url = self._cached_gateway_url
+
+        gateway_url += '?v={}&encoding={}'.format(self.GATEWAY_VERSION, self.encoder.TYPE)
 
-        self.log.info('Opening websocket connection to URL `%s`', self._cached_gateway_url)
-        self.ws = Websocket(self._cached_gateway_url)
+        self.log.info('Opening websocket connection to URL `%s`', gateway_url)
+        self.ws = Websocket(gateway_url)
         self.ws.emitter.on('on_open', self.on_open)
         self.ws.emitter.on('on_error', self.on_error)
         self.ws.emitter.on('on_close', self.on_close)

disco/gateway/ipc/gipc.py

@@ -0,0 +1,50 @@
+import random
+import gipc
+import gevent
+import string
+import weakref
+
+
+def get_random_str(size):
+    return ''.join([random.choice(string.ascii_printable) for _ in range(size)])
+
+
+class GIPCProxy(object):
+    def __init__(self, pipe):
+        self.pipe = pipe
+        self.results = weakref.WeakValueDictionary()
+        gevent.spawn(self.read_loop)
+
+    def read_loop(self):
+        while True:
+            nonce, data = self.pipe.get()
+            if nonce in self.results:
+                self.results[nonce].set(data)
+
+    def __getattr__(self, name):
+        def wrapper(*args, **kwargs):
+            nonce = get_random_str()
+            self.results[nonce] = gevent.event.AsyncResult()
+            self.pipe.put(nonce, name, args, kwargs)
+            return self.results[nonce]
+        return wrapper
+
+
+class GIPCObject(object):
+    def __init__(self, inst, pipe):
+        self.inst = inst
+        self.pipe = pipe
+        gevent.spawn(self.read_loop)
+
+    def read_loop(self):
+        while True:
+            nonce, func, args, kwargs = self.pipe.get()
+            func = getattr(self.inst, func)
+            self.pipe.put((nonce, func(*args, **kwargs)))
+
+class IPC(object):
+    def __init__(self, sharder):
+        self.sharder = sharder
+
+    def get_shards(self):
+        return {}

disco/gateway/sharder.py

@@ -0,0 +1,31 @@
+import gipc
+
+from disco.client import Client
+from disco.bot import Bot, BotConfig
+from disco.api.client import APIClient
+from disco.gateway.ipc.gipc import GIPCObject, GIPCProxy
+
+
+def run_shard(config, id, pipe):
+    config.shard_id = id
+    client = Client(config)
+    bot = Bot(client, BotConfig(config.bot))
+    GIPCObject(bot, pipe)
+    bot.run_forever()
+
+
+class AutoSharder(object):
+    def __init__(self, config):
+        self.config = config
+        self.client = APIClient(config.token)
+        self.shards = {}
+        self.config.shard_count = self.client.gateway_bot_get()['shards']
+
+    def run(self):
+        for shard in range(self.shard_count):
+            self.start_shard(shard)
+
+    def start_shard(self, id):
+        cpipe, ppipe = gipc.pipe(duplex=True)
+        gipc.start_process(run_shard, (self.config, id, cpipe))
+        self.shards[id] = GIPCProxy(ppipe)