NOTE: This repository is currently being reworked. Instead, please visit the following locations, depending on your interest:
- The Namada repository contains the Namada codebase.
- The Anoma specs repository contains the specifications for Anoma.
- Active development of Anoma is happening on three repositories:
- The Anoma alpha repository contains an alpha prototype.
- The Taiga repository contains the Taiga component, which provides shielded state transitions.
- The Typhon repository contains the Typhon component, which handles mempool, consensus, and execution.
Overview
Anoma is an intent-centric, privacy-preserving protocol for decentralized counterparty discovery, solving, and multi-chain atomic settlement. To learn more about Anoma's vision, take a look at the Anoma Vision Paper.
This is an implementation of the Anoma protocol in Rust.
Warning
Here lay dragons: this codebase is still experimental, try at your own risk!
💾 Installing
There is a single command to build and install Anoma executables from source (the node, the client and the wallet). This command will also verify that a compatible version of Tendermint is available and if not, attempt to install it. Note that currently at least 16GB RAM is needed to build from source.
make install
After installation, the main anoma
executable will be available on path.
To find how to use it, check out the User Guide section of the docs.
If you have Nix, you may opt to build and install Anoma using Nix. The Nix integration also takes care of making a compatible version of Tendermint available.
# Nix 2.4 and later
nix profile install
# All versions of Nix
nix-env -f . -iA anoma
For more detailed instructions and more install options, see the Install section of the User Guide.
⚙️ Development
# Build the provided validity predicate, transaction and matchmaker wasm modules
make build-wasm-scripts-docker
# Development (debug) build Anoma, which includes a validator and some default
# accounts, whose keys and addresses are available in the wallet
ANOMA_DEV=true make
Using Nix
You may opt to get all of the dependencies to develop Anoma by entering the development shell:
# Nix 2.4 and above
nix develop
# All versions of Nix
nix-shell
Inside the shell, all of the make
targets work as usual:
# Build the WASM modules without docker
make build-wasm-scripts
# Development build (uses cargo)
ANOMA_DEV=true make
It is also possible to use the Nix Rust infrastructure instead of Cargo to
build the project crates. This method uses crate2nix
to derive Nix
expressions from Cargo.toml
and Cargo.lock
files. The workspace members are
exposed as packages in flake.nix
with a rust_
prefix. Variants where the
ABCI-plus-plus
feature flag is enabled are exposed with a :ABCI-plus-plus
suffix.
# List all packages
nix flake show
# Build the `anoma_apps` crate with `ABCI-plus-plus` feature
nix build .#rust_anoma_apps:ABCI-plus-plus
# Build the (default) anoma package. It consists of wrappers for the Anoma
# binaries (`rust_anoma_apps`) that ensure `tendermint` is in `PATH`.
nix build .#anoma
Advantages:
- Excellent build reproducibility (all dependencies pinned).
- Individual crates are stored as Nix derivations and therefore cached in the Nix store.
- Makes it possible to build Nix derivations of the binaries. Cargo build
doesn't work in the Nix build environment because network access is not
allowed, meaning that Cargo can't fetch dependencies;
cargo vendor
could be used to prefetch everything for Cargo, butcargo vendor
does not work on our project at the moment.
Disadvantages:
- Only works for Linux and Darwin targets. WASM builds in particular are not
possible with this method. Although, while
crate2nix
doesn't support targeting WASM, we should be able to build the WASM modules via Cargo - if onlycargo vendor
worked.
Note: If you have modified the Cargo dependencies (changed Cargo.lock
),
it is necessary to recreate the Cargo.nix
expressions with crate2nix
.
Helpers are provided as flake apps (Nix 2.4 and later):
nix run .#generateCargoNix
nix run .#generateCargoNixABCI-plus-plus
Before submitting a PR, pls make sure to run the following
# Format the code
make fmt
# Lint the code
make clippy
🧾 Logging
To change the log level, set ANOMA_LOG
environment variable to one of:
error
warn
info
debug
trace
The default is set to info
for all the modules, expect for Tendermint ABCI, which has a lot of debug
logging.
For more fine-grained logging levels settings, please refer to the tracing subscriber docs for more information.
To switch on logging in tests that use #[test]
macro from test_log::test
, use RUST_LOG
with e.g. RUST_LOG=info cargo test -- --nocapture
.
How to contribute
Please see the contributing page.
Dependencies
The ledger currently requires that Tendermint version 0.34.x is installed and available on path. The pre-built binaries and the source for 0.34.8 are here, also directly available in some package managers.
This can be installed by make install
command (which runs scripts/install/get_tendermint.sh script).