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Last pushed: 7 months ago
Short Description
Main image for the bot at https://github.com/best-coloc-ever/globibot
Full Description

globibot

A plugin-based, extensible bot for Discord

Configuration

The bot configuration is read from a yaml file (specified with --config-path)
You can copy the existing config.example.yaml file and fill in the values yourself

You must at least provide a valid token for your bot under the top level bot configuration key
There must also be a top level web key as well as a top level db

A minimalistic configuration file could look like this:

bot:
  # A valid discord application token
  token: 'MyaWes0mebOtT0k3n'

  # Plugins to enable
  plugins:
    some_plugin: {}
    some_other_plugin_with_conf:
      conf_key: 'conf value'

  # Ids of people able to use "master commands"
  masters:
    - 'Some snowflake id for a discord account'

web:
  port: 80

db:
  host: db
  user: postgres

Deployment :whale:

If you want to use the webserver:

Place/generate your SSL/TLS certificate in ./web/server/fullchain.pem
Place the associated private key in ./web/server/privkey.pem

Then make sure docker >= 1.10 and docker-compose >= 1.6 are installed and run:

./dev run --rm web-builder npm install # Fetch node dependencies
./dev run --rm web-builder webpack -p # Bundle the website

./prod up -d db # Boots up the db
./dev run --rm db flyway migrate # Populate the db

./prod up -d # Boots up the bot and the webserver

./prod logs -f bot # To access the bot's stdout logs

Using plugins

Globibot comes with a minimalistic set of plugins

Plugins are python modules loaded from the directory specified by --plugin-path

To enable a plugin, you can just add its name in the configuration file under the plugins key

Creating plugins

For globibot to be able to load a plugin, your plugin module must export a symbol called plugin_cls which would point to a class that inherits Plugin from bot.lib.plugin

Let's create a simple plugin called foo

In ./bot/plugins/foo/__init__.py:

from .foo_plugin import Foo

plugin_cls = Foo

In ./bot/plugins/foo/foo_plugin.py:

from globibot.lib.plugin import Plugin

class Foo(Plugin):
    pass

In ./bot/config.yaml let's add our plugin with a dummy config:

bot:
  # ...

  plugins:

    foo:
      bar: 1337

  # ...

Now if you start/restart the bot:

./script/dev up -d bot # To start the bot
# Or
./script/dev restart -t 0 bot # To restart the bot

You should see in the logs that Globibot loaded your plugin:

From this moment on, any changes to your foo modules will be reloaded automatically when module files change

Let's add a simple command to the plugin:

In ./bot/src/bot/plugins/foo/foo_plugin.py:

from globibot.lib.plugin import Plugin

from globibot.lib.decorators import command # Command declaration helper

from globibot.lib.helpers import parsing as p # Parser combinator tools
from globibot.lib.helpers.hooks import master_only # Hook to only allow master users

class Foo(Plugin):

    def load(self):
        '''
        Called on plugin load/reload
        '''

        # Loads the value of the `bar` configuration key with a default value
        # if the key were to be absent
        self.bar = self.config.get('bar', 42)

    @command(p.string('!foo') + p.bind(p.integer, 'number'))
    async def foo_command(self, message, number):
        '''
        Called on inputs starting with the string '!foo' (case insensitive)
        followed by an integer whose value will be bound to the `number`
        variable
        '''

        await self.send_message(
            message.channel, # Sends a message in the same channel as the input
            '{} * {} = {}'.format(number, self.bar, number * self.bar)
        )

    @command(p.string('!id') + p.bind(p.mention, 'user_id'), master_only)
    async def id_command(self, message, user_id):
        '''
        Called on inputs starting with the string '!id' (case insensitive)
        followed by a discord user mention (usually displayed '@SomeUser' on
        discord's client)

        We have access to SomeUser's discord's ID in the `user_id` variable

        The command is marked as `master_only` and will execute only if the
        input was sent by someone who was registered as 'master' in the
        configuration file
        '''

        await self.send_message(
            message.channel,
            '{}: the id is {}'
                .format(message.author.mention, user_id),
            delete_after = 30 # Message deletes itself after 30 seconds
        )

Upon saving this file, you should see this:

And then you can simply test the results in discord directly:

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datcoloc
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