Minimum Supported Rust Version

Rust 1.86.0 or higher.

Development Guide

Before contributing, make yourself familiar with our contribution guidelines and the technical documentation for this project.

Before getting started, you'll want to install:

• mise
• Docker
• Git
• mold (optional, faster compilation)

A default.nix is available for Nix users! Run nix-shell to activate mise.

As a heads-up, the development environment uses the following ports:

| Service | Port | | ------------------------- | :------------: | | MongoDB | 27017 | | Redis | 6379 | | MinIO | 14009 | | Maildev | 14025
14080 | | Revolt Web App | 14701 | | RabbitMQ | 5672
15672 | | crates/delta | 14702 | | crates/bonfire | 14703 | | crates/services/autumn | 14704 | | crates/services/january | 14705 | | crates/services/gifbox | 14706 |

Now you can clone and build the project:

git clone https://github.com/revoltchat/backend revolt-backend
cd revolt-backend
mise build

A default configuration Revolt.toml is present in this project that is suited for development.

If you'd like to change anything, create a Revolt.overrides.toml file and specify relevant variables.

[!TIP] Use Sentry to catch unexpected service errors:

# Revolt.overrides.toml
[sentry]
api = "https://abc@your.sentry/1"
events = "https://abc@your.sentry/1"
files = "https://abc@your.sentry/1"
proxy = "https://abc@your.sentry/1"

[!TIP] If you have port conflicts on common services, you can try the following:

# compose.override.yml
services:
  redis:
    ports: !override
      - "14079:6379"

  database:
    ports: !override
      - "14017:27017"

  rabbit:
    ports: !override
      - "14072:5672"
      - "14672:15672"

And corresponding Revolt configuration:

#     Revolt.overrides.toml
# and Revolt.test-overrides.toml
[database]
mongodb = "mongodb://127.0.0.1:14017"
redis = "redis://127.0.0.1:14079/"

[rabbit]
port = 14072

Then continue:

# start other necessary services
docker compose up -d

# run everything together
./scripts/start.sh
# .. or individually
# run the API server
cargo run --bin revolt-delta
# run the events server
cargo run --bin revolt-bonfire
# run the file server
cargo run --bin revolt-autumn
# run the proxy server
cargo run --bin revolt-january
# run the tenor proxy
cargo run --bin revolt-gifbox
# run the push daemon (not usually needed in regular development)
cargo run --bin revolt-pushd

# hint:
# mold -run <cargo build, cargo run, etc...>
# mold -run ./scripts/start.sh

You can start a web client by doing the following:

# if you do not have yarn yet and have a modern Node.js:
corepack enable

# clone the web client and run it:
git clone --recursive https://github.com/revoltchat/revite
cd revite
yarn
yarn build:deps
echo "VITE_API_URL=http://local.revolt.chat:14702" > .env.local
yarn dev --port 14701

Then go to http://local.revolt.chat:14701 to create an account/login.

When signing up, go to http://localhost:14080 to find confirmation/password reset emails.

Deployment Guide

Cutting new crate releases

Begin by bumping crate versions:

just patch # 0.0.X
just minor # 0.X.0
just major # X.0.0

Then commit the changes to package files.

Proceed to publish all the new crates:

just publish

Cutting new binary releases

Tag and push a new release by running:

just release

If you have bumped the crate versions, proceed to GitHub releases to create a changelog.

Testing

First, start the required services:

docker compose -f docker-compose.db.yml up -d

Now run tests for whichever database:

TEST_DB=REFERENCE cargo nextest run
TEST_DB=MONGODB cargo nextest run

License

The Revolt backend is generally licensed under the GNU Affero General Public License v3.0.

Individual crates may supply their own licenses!