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Fixing Discord shortcomings (for our internal server) with Chuckle

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Discord Server Test status Command deployment status

About

Chuckle is our in-house Discord bot for our internal company server. We weren't a huge fan of Slack and, most of our target demographic uses Discord.

A few of our favorite (and only :p) features include:

  • Circle Back, create reminders to revisit a specific message
  • PR Comments, stream PR reviews and updates to a configured thread
  • /hexil, allow each member to set a custom role/name color

Development

Requirements

These are some broad, general requirements for running Chuckle.

Setup

Before you can actually setup... we have some setup to do!

  1. Install cargo-make (cargo install --force cargo-make)

Cargo doesn't have a native "scripts" feature like Yarn or NPM. Thus, we use cargo-make and Makefile.toml.

2. Install pre-commit (pip install pre-commit)

We use this for running git hooks. This is handled by the next step.

  1. Run cargo make setup

This installs necessary components for other scripts and development fun.

Environment

If it weren't for sqlx and it's inability to play nice with direnv, we wouldn't also need an .env file containing just the DATABASE_URL.

  1. Install direnv.

It automatically loads our .direnv file.

  1. Copy .envrc.example to .envrc and fill with your environment variables.

  2. Ensure .env houses your DATABASE_URL address.

Database

We utilize sqlx's compile-time checked queries, which requires a database connection during development. Additionally, we use sqlx's migrations tool, which is just a treat!

  1. Start the database with docker compose up -d.

  2. Run sqlx migrate run

This applies our database migrations.

Running

Now, running the bot should be as easy as:

  1. cargo make dev

Contributing

When making changes to Chuckle, there are a few things you must take into consideration.

If you make any query changes, you must run cargo sqlx prepare to create an entry in .sqlx to support SQLX_OFFLINE. If you make any command/interaction data changes, you must run cargo make commands-lockfile to remake the commands.lock.json file.

Regardless, of what scope, you must always ensure Clippy, Rustfmt and cargo-check are satisified, as done with pre-commit hooks.

Production

We currently host Chuckle on our Google Kubernetes Engine cluster.

flowchart TD
    commands["
        Update Discord
        Commands
    "]
    test["
        Lint, Format
        and Build
    "]
    commit[Push to main] --> test
    commit ---> deploy[Deploy to GCR]
    commit -- "
        commands.lock.json
        updated?
    " ---> commands
    commit -- "
        migrations
        updated?
    " --> cloudsql[Connect to Cloud SQL]
    --> migrations[Apply Migrations]
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Building Chuckle

todo, see our .github/workflows

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Fixing Discord shortcomings (for our internal server) with Chuckle

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Apache-2.0, MIT licenses found

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