Axelar Gateway Contracts

This repository contains the source code for the core smart contracts implementing Axelar Gateway on the Terra blockchain.

Dependencies

Contracts

Contract	Reference	Description
gateway	doc	Proxy contract which relays messages from it owner to other contracts. Supports meta transactions ("anyone-can-pay")
token-factory	doc	Deploys token contracts that are controlled by an Axelar master address
token	doc	CW20 implementation that represents a cross-chain asset

Development

Environment Setup

• Rust v1.44.1+
• wasm32-unknown-unknown target
• Docker

1. Install rustup via https://rustup.rs/

2. Run the following:

rustup default stable
rustup target add wasm32-unknown-unknown

3. Make sure Docker is installed

Unit / Integration Tests

Each contract contains Rust unit and integration tests embedded within the contract source directories. You can run:

cargo unit-test
cargo integration-test

Compiling

After making sure tests pass, you can compile each contract with the following:

RUSTFLAGS='-C link-arg=-s' cargo wasm
cp ../../target/wasm32-unknown-unknown/release/cw1_subkeys.wasm .
ls -l cw1_subkeys.wasm
sha256sum cw1_subkeys.wasm

Production

For production builds, run the following:

docker run --rm -v "$(pwd)":/code \
  --mount type=volume,source="$(basename "$(pwd)")_cache",target=/code/target \
  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
  cosmwasm/workspace-optimizer:0.10.2

This performs several optimizations which can significantly reduce the final size of the contract binaries, which will be available inside the artifacts/ directory.

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and limitations under the License.