Bot to manage and test GitHub pull requests

The PR bot processes GitHub webhook events and can be built with go get github.com/macports/mpbot-github/pr/prbot.

The CI bot tests PRs on Travis CI and can be built with go get github.com/macports/mpbot-github/ci/runner.

PR bot

To run the PR bot, you need to add a webhook to your macports-ports repository. The webhook must have a secret and receive at least issue_comment (Issue comment), pull_request (Pull request), pull_request_review (Pull request review) events.

You also need a GitHub OAuth2 access token (e.g. a personal access tokens) as HUB_BOT_SECRET below.

You also need to set the following environment variables:

In pr/db/dbutil.go, connection strings for the PostgreSQL databases:

TRAC_DB: connection string for the Trac DB
WWW_DB: connection string for the PortIndex DB (https://github.com/macports/macports-infrastructure/tree/master/jobs)
PR_DB: connection string for the bot's own DB

In pr/prbot/main.go, secrets and production flag:

HUB_WEBHOOK_SECRET: used to verify webhook events
HUB_BOT_SECRET: used to comment and modify labels in PRs
BOT_ENV: set to production to actually mention maintainers (e.g. @l2dy instead of @_l2dy)

You also need a database with port maintainers and Trac account emails. We have a script that generates PostgreSQL dump from all ports in your local MacPorts installation for use in www.macports.org and the PR bot uses the maintainers table generated. The schema of Trac account emails is shown below:

--
-- Name: session_attribute; Type: TABLE; Schema: trac_macports; Owner: trac; Tablespace:
--

CREATE TABLE session_attribute (
    sid text NOT NULL,
    authenticated integer NOT NULL,
    name text NOT NULL,
    value text
);

--
-- Name: session_attribute_pk; Type: CONSTRAINT; Schema: trac_macports; Owner: trac; Tablespace:
--

ALTER TABLE ONLY session_attribute
    ADD CONSTRAINT session_attribute_pk PRIMARY KEY (sid, authenticated, name);

And some test data:

l2dy	1	email	l2dy@macports.org
l2dy	1	name	Zero King
l2dy	1	tz	UTC

You can use -l addr:port to set the listen address for GitHub webhook. It defaults to :8081, which means any address and port 8081.

CI bot

To run the CI bot, you need to have the .travis.yml and _ci/* files in your macports-ports repository and enable Travis CI for that repository here.

The CI bot is executed as root under Travis CI environment bootstrapped by this script.

It assumes that MacPorts is already installed and no cleanup is needed.

It will try to upload logs to https://paste.macports.org/, hardcoded in remoteLog.go.

For local debugging, you have to use your own Mojopaste instance and run the bot in a clone of macports-ports. The bot will try to get the list of changed ports from macports/master...HEAD so you need to fetch the master branch of the macports remote and commit your changes on the current branch.

License

nuvo-orgamen/mpbot-github

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