Added the command/irc.py directory that was not committed properly.

Added some more helper commands and changed a bit under the hood on those
previously committed for mapping irc/imc channels to each other.

There seems to be an issue with IMC2 users seeing an echo back to themselves when talking. Investigating.
/Griatch

src/commands/irc.py

@@ -0,0 +1,97 @@
+"""
+IRC-related functions
+"""
+
+from django.conf import settings
+from src.irc.connection import IRC_CHANNELS
+from src.irc.connection import connect_to_IRC
+from src.irc.models import IRCChannelMapping
+from src import comsys
+from src.cmdtable import GLOBAL_CMD_TABLE
+
+def cmd_IRC2chan(command):
+    """
+    @irc2chan IRCchannel channel
+
+    Links an IRC channel (including #) to an existing
+    evennia channel. You can link as many existing
+    evennia channels as you like to the
+    IRC channel this way. Running the command with an
+    existing mapping will re-map the channels.
+
+    """
+    source_object = command.source_object
+    if not settings.IRC_ENABLED:
+        s = """IRC is not enabled. You need to activate it in game/settings.py."""
+        source_object.emit_to(s)
+        return
+    args = command.command_argument
+    if not args or len(args.split()) != 2 :
+        source_object.emit_to("Usage: @irc2chan IRCchannel channel")
+        return
+    irc_channel, channel = args.split()
+    if irc_channel not in [o.factory.channel for o in IRC_CHANNELS]:
+        source_object.emit_to("IRC channel '%s' not found." % irc_channel)
+        return
+    try:
+        chanobj = comsys.get_cobj_from_name(channel)    
+    except CommChannel.DoesNotExist:
+        source_object.emit_to("Local channel '%s' not found (use real name, not alias)." % channel)
+        return
+       
+    #create the mapping.
+    outstring = ""
+    mapping = IRCChannelMapping.objects.filter(channel__name=channel)
+    if mapping:
+        mapping = mapping[0]
+        outstring = "Replacing %s. New " % mapping
+    else:
+        mapping = IRCChannelMapping()
+    
+    mapping.irc_server_name = settings.IRC_NETWORK
+    mapping.irc_channel_name = irc_channel   
+    mapping.channel = chanobj
+    mapping.save()
+    outstring += "Mapping set: %s." % mapping    
+    source_object.emit_to(outstring)
+
+GLOBAL_CMD_TABLE.add_command("@irc2chan",cmd_IRC2chan,auto_help=True,staff_help=True,
+                             priv_tuple=("objects.add_commchannel",))
+    
+def cmd_IRCjoin(command):
+    """
+    @ircjoin IRCchannel
+
+    Attempts to connect a bot to a new IRC channel (don't forget that
+    IRC channels begin with a #).
+    The bot uses the connection details defined in the main settings. 
+
+    Observe that channels added using this command does not survive a reboot. 
+    """
+    source_object = command.source_object
+    arg = command.command_argument
+    if not arg:
+        source_object.emit_to("Usage: @ircjoin irc_channel")
+        return
+    channel = arg.strip()
+    if channel[0] != "#": channel = "#%s" % channel
+    
+    connect_to_IRC(settings.IRC_NETWORK,
+                   settings.IRC_PORT,
+                   channel,settings.IRC_NICKNAME)
+GLOBAL_CMD_TABLE.add_command("@ircjoin",cmd_IRCjoin,auto_help=True,
+                             staff_help=True,
+                             priv_tuple=("objects.add_commchannel",))
+
+def cmd_IRCchanlist(command):
+    """
+    ircchanlist
+
+    Lists all externally available IRC channels.
+    """
+    source_object = command.source_object
+    s = "Available IRC channels:"
+    for c in IRC_CHANNELS:
+        s += "\n  %s \t(nick '%s') on %s" % (c.factory.channel,c.factory.nickname,c.factory.network,)
+    source_object.emit_to(s)
+GLOBAL_CMD_TABLE.add_command("ircchanlist", cmd_IRCchanlist, auto_help=True)