irc.json

{
    "name": "irc",
    "active": true,
    "events": [
        "issues",
        "push",
        "pull_request"
    ],
    "config": {
        "server": "irc.mozilla.org",
        "port": "6697",
        "room": "#servo",
        "nick": "ghservo",
        "ssl": "1",
        "message_without_join": "0",
        "no_colors": "0",
        "notice": "0"
    }
}

repo_add_irc.sh

#!/bin/bash

owner=mozilla-servo
repo=$1
user=metajack

curl -i -u $user -X POST https://api.github.com/repos/$owner/$repo/hooks --data @irc.json