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https://github.com/metakgp/eva

A Hubot for the Metakgp Slack channel
https://github.com/metakgp/eva

eva hacktoberfest heroku hubot-adapters hubot-scripts

Last synced: about 2 months ago
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A Hubot for the Metakgp Slack channel

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README 

        
# Eva



Eva is a chatbot built on the [Hubot][hubot] framework. It was

initially generated by [generator-hubot][generator-hubot], and configured to be

deployed on [Heroku][heroku] to get you up and running as quickly as possible.



This README is intended to help get you started. Definitely update and improve

to talk about your own instance, how to use and deploy, what functionality he

has, etc!



[heroku]: http://www.heroku.com

[hubot]: http://hubot.github.com

[generator-hubot]: https://github.com/github/generator-hubot



### Present Setup



This is deployed on Heroku. The name of the app is `metakgp-eva`. If you want to

push changes to eva, open a PR on this repository. The heroku application is owned

by [Vikrant Varma](https://github.com/amrav).



### Running Eva Locally



You can test your hubot by running the following, however, some plugins will not

behave as expected unless the [environment variables](#configuration) they rely

upon have been set.



#### Pre-requisites



- Node.js

- NPM



You can use a package manager like [nvm](https://github.com/creationix/nvm) to

get the latest version of node for your operating system.



#### Running Eva



Now you can start Eva locally by running:



    % bin/hubot



You'll see some start-up output and a prompt:



    [Sat Feb 28 2015 12:38:27 GMT+0000 (GMT)] INFO Using default redis on localhost:6379

    Eva>



Then you can interact with Eva by typing `Eva help`.



    Eva> Eva help

    Eva animate me  - The same thing as `image me`, except adds [snip]

    Eva help - Displays all of the help commands that Eva knows about.

    ...



### Configuration



A few scripts (including some installed by default) require environment

variables to be set as a simple form of configuration.



Each script should have a commented header that contains a "Configuration"

section that explains which values it requires to be placed in which variable.

When you have lots of scripts installed this process can be quite labour

intensive. The following shell command can be used as a stopgap until an

easier way to do this has been implemented.



    grep -o 'hubot-[a-z0-9_-]\+' external-scripts.json | \

      xargs -n1 -I {} sh -c 'sed -n "/^# Configuration/,/^#$/ s/^/{} /p" \

          $(find node_modules/{}/ -name "*.coffee")' | \

        awk -F '#' '{ printf "%-25s %s\n", $1, $2 }'



How to set environment variables will be specific to your operating system.

Rather than recreate the various methods and best practices in achieving this,

it's suggested that you search for a dedicated guide focused on your OS.



### Scripting



An example script is included at `scripts/example.coffee`, so check it out to

get started, along with the [Scripting Guide](scripting-docs).



For many common tasks, there's a good chance someone has already one to do just

the thing.



[scripting-docs]: https://github.com/github/hubot/blob/master/docs/scripting.md



### external-scripts



There will inevitably be functionality that everyone will want. Instead of

writing it yourself, you can use existing plugins.



Hubot is able to load plugins from third-party `npm` packages. This is the

recommended way to add functionality to your hubot. You can get a list of

available hubot plugins on [npmjs.com](npmjs) or by using `npm search`:



    % npm search hubot-scripts panda

    NAME             DESCRIPTION                        AUTHOR DATE       VERSION KEYWORDS

    hubot-pandapanda a hubot script for panda responses =missu 2014-11-30 0.9.2   hubot hubot-scripts panda

    ...



To use a package, check the package's documentation, but in general it is:



1. Use `npm install --save` to add the package to `package.json` and install it

2. Add the package name to `external-scripts.json` as a double-quoted string



You can review `external-scripts.json` to see what is included by default.



##### Advanced Usage



It is also possible to define `external-scripts.json` as an object to

explicitly specify which scripts from a package should be included. The example

below, for example, will only activate two of the six available scripts inside

the `hubot-fun` plugin, but all four of those in `hubot-auto-deploy`.



```json

{

  "hubot-fun": [

    "crazy",

    "thanks"

  ],

  "hubot-auto-deploy": "*"

}

```



**Be aware that not all plugins support this usage and will typically fall back

to including all scripts.**



[npmjs]: https://www.npmjs.com



### hubot-scripts



Before hubot plugin packages were adopted, most plugins were held in the

[hubot-scripts][hubot-scripts] package. Some of these plugins have yet to be

migrated to their own packages. They can still be used but the setup is a bit

different.



To enable scripts from the hubot-scripts package, add the script name with

extension as a double-quoted string to the `hubot-scripts.json` file in this

repo.



[hubot-scripts]: https://github.com/github/hubot-scripts



##  Persistence



If you are going to use the `hubot-redis-brain` package (strongly suggested),

you will need to add the Redis to Go addon on Heroku which requires a verified

account or you can create an account at [Redis to Go][redistogo] and manually

set the `REDISTOGO_URL` variable.



    % heroku config:add REDISTOGO_URL="..."



If you don't need any persistence feel free to remove the `hubot-redis-brain`

from `external-scripts.json` and you don't need to worry about redis at all.



[redistogo]: https://redistogo.com/



## Adapters



Adapters are the interface to the service you want your hubot to run on, such

as Campfire or IRC. There are a number of third-party adapters that the

community has contributed. Check [Hubot Adapters][hubot-adapters] for the

available ones.



If you would like to run a non-Campfire or shell adapter you will need to add

the adapter package as a dependency to the `package.json` file in the

`dependencies` section.



Once you've added the dependency with `npm install --save` to install it you

can then run hubot with the adapter.



    % bin/hubot -a 



Where `` is the name of your adapter without the `hubot-` prefix.



[hubot-adapters]: https://github.com/github/hubot/blob/master/docs/adapters.md



## Deployment



    % heroku create --stack cedar

    % git push heroku master



If your Heroku account has been verified you can run the following to enable

and add the Redis to Go addon to your app.



    % heroku addons:add redistogo:nano



If you run into any problems, check out Heroku's [docs][heroku-node-docs].



You'll need to edit the `Procfile` to set the name of your hubot.



More detailed documentation can be found on the [deploying hubot onto

Heroku][deploy-heroku] wiki page.



### Deploying to UNIX or Windows



If you would like to deploy to either a UNIX operating system or Windows.

Please check out the [deploying hubot onto UNIX][deploy-unix] and [deploying

hubot onto Windows][deploy-windows] wiki pages.



[heroku-node-docs]: http://devcenter.heroku.com/articles/node-js

[deploy-heroku]: https://github.com/github/hubot/blob/master/docs/deploying/heroku.md

[deploy-unix]: https://github.com/github/hubot/blob/master/docs/deploying/unix.md

[deploy-windows]: https://github.com/github/hubot/blob/master/docs/deploying/unix.md



## Campfire Variables



If you are using the Campfire adapter you will need to set some environment

variables. If not, refer to your adapter documentation for how to configure it,

links to the adapters can be found on [Hubot Adapters][hubot-adapters].



Create a separate Campfire user for your bot and get their token from the web

UI.



    % heroku config:add HUBOT_CAMPFIRE_TOKEN="..."



Get the numeric IDs of the rooms you want the bot to join, comma delimited. If

you want the bot to connect to `https://mysubdomain.campfirenow.com/room/42`

and `https://mysubdomain.campfirenow.com/room/1024` then you'd add it like

this:



    % heroku config:add HUBOT_CAMPFIRE_ROOMS="42,1024"



Add the subdomain hubot should connect to. If your web URL looks like

`http://mysubdomain.campfirenow.com` then you'd add it like this:



    % heroku config:add HUBOT_CAMPFIRE_ACCOUNT="mysubdomain"



[hubot-adapters]: https://github.com/github/hubot/blob/master/docs/adapters.md



## Restart the bot



You may want to get comfortable with `heroku logs` and `heroku restart` if

you're having issues.